Patent Publication Number: US-11378775-B2

Title: Camera lens

Description:
TECHNICAL FIELD 
     The present disclosure relates to a camera lens, and in particular to a camera lens which is suitable for use in a portable modular camera, a WEB camera or the like using a camera element such as a high-pixel CCD or CMOS, has good optical properties, has a full angle of view (hereinafter, referred to as 2ω) being a narrow angle lower than 20°, and includes five lenses. 
     BACKGROUND 
     In recent years, various types of camera devices equipped with a camera element such as a CCD and CMOS and others have been widely used. Along with the development of miniaturization and high performance of camera elements, camera lenses with good optical properties and a narrow angle are needed. 
     The technology related to the camera lens composed of five lenses with a narrow angle and good optical properties is being developed gradually. 
     A camera lens constituted of five lenses has been proposed, which includes from an object side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; and a fifth lens having a negative refractive power, but 2ω=51.75°, and the narrow angle is not sufficient. 
     Another camera lens constituted of five lenses has been proposed, which includes from an object side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; and a fifth lens having a negative refractive power, but 2ω≥37.00°, and the narrow angle is not sufficient. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       Many aspects of the exemplary embodiment can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is a structural diagram of a camera lens LA according to an embodiment of the present disclosure. 
         FIG. 2  is a structural diagram of the above-described camera lens LA according to Embodiment 1. 
         FIG. 3  is a diagram of a spherical aberration of the camera lens LA of Embodiment 1. 
         FIG. 4  is a diagram of a magnification chromatic aberration of the camera lens LA of Embodiment 1. 
         FIG. 5  is a diagram of field curvature and distortion of the camera lens LA of Embodiment 1. 
         FIG. 6  is a structural diagram of the above-described camera lens LA according to Embodiment 2. 
         FIG. 7  is a diagram of a spherical aberration of the camera lens LA of Embodiment 2. 
         FIG. 8  is a diagram of a magnification chromatic aberration of the camera lens LA of Embodiment 2. 
         FIG. 9  is a diagram of field curvature and distortion of the camera lens LA of Embodiment 2. 
         FIG. 10  is a structural diagram of the above-described camera lens LA according to Embodiment 3. 
         FIG. 11  is a diagram of a spherical aberration of the camera lens LA of Embodiment 3. 
         FIG. 12  is a diagram of a magnification chromatic aberration of the camera lens LA of Embodiment 3. 
         FIG. 13  is a diagram of field curvature and distortion of the camera lens LA of Embodiment 3. 
         FIG. 14  is a structural diagram of the above-described camera lens LA according to Embodiment 4. 
         FIG. 15  is a diagram of a spherical aberration of the camera lens LA of Embodiment 4. 
         FIG. 16  is a diagram of a magnification chromatic aberration of the camera lens LA of Embodiment 4. 
         FIG. 17  is a diagram of field curvature and distortion of the camera lens LA of Embodiment 4. 
         FIG. 18  is a structural diagram of the above-described camera lens LA according to Embodiment 5. 
         FIG. 19  is a diagram of a spherical aberration of the camera lens LA of Embodiment 5. 
         FIG. 20  is a diagram of a magnification chromatic aberration of the camera lens LA of Embodiment 5. 
         FIG. 21  is a diagram of field curvature and distortion of the camera lens LA of Embodiment 5. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     An embodiment of a camera lens according to the present disclosure will be described with reference to the drawings. A diagram showing a structure of the camera lens according to the embodiment of the present disclosure is as shown in  FIG. 1 . The camera lens LA has a five-lens system which includes a first lens L 1 , a second lens L 2 , a third lens L 3 , a fourth lens L 4  and a fifth lens L 5 , which are arranged from an object side towards an image side. Glass plates GF 1  and GP 2  are provided between the fifth lens L 5  and an imaging plane. The glass plates GF 1  and GF 2  can be glass plates each using a cover glass or having an IR cut-off filter and other functions. In addition, there may be no glass plates GF 1  and GF 2  provided between the fifth lens L 5  and the imaging plane. 
     The first lens L 1  is a lens having a positive refractive power, the second lens L 2  is a lens having a negative refractive power, the third lens L 3  is a lens having a positive refractive power, the fourth lens L 4  is a lens having a positive refractive power, and the fifth Lens L 5  is a lens having a positive refractive power. With respect to the lens surfaces of these five lenses, it is preferable to make them be aspheric surfaces in order to satisfactorily correct various aberrations. 
     The camera lens LA satisfies the following relational expressions (1) to (2):
 
7.00≤( f 1+ f 3+ f 4+ f 5)/ f≤ 12.00  (1);
 
−0.45≤ f 2/ f≤− 0.30  (2), and
 
in which:
     f denotes an overall focal length of the lens system,   f1 denotes a focal length of the first lens;   f2 denotes a focal length of the second lens;   f3 denotes a focal length of the third lens;   f4 denotes a focal length of the fourth lens; and   f5 denotes a focal length of the fifth lens.   

     The relational expression (1) specifies a ratio of a sum of the focal length f1 of the first lens L 1 , the focal length f3 of the third lens L 3 , the focal length f4 of the fourth lens L 4  and the focal length f5 of the fifth lens L 5  to the overall focal length f of the lens system. Within the range of the relational expression (1), it is more advantageous to achieve narrow angles with good optical characteristics. 
     The relational expression (2) specifies a ratio of the focal length f2 of the second lens L 2  to the overall focal length f of the lens system. Within the range of the relational expression (2), it is more advantageous to achieve narrow angles with good optical characteristics. 
     In the camera lens according to the present embodiment, the first lens L 1  is a lens having a positive refractive power, the second lens L 2  is a lens having a negative refractive power, and the following relational expression (3) is satisfied:
 
−2.00≤ f 1/ f 2≤−1.45  (3),
 
where
     f1 denotes a focal length of the first lens L 1 ; and   f2 denotes a focal length of the second lens L 2 .   

     The relational expression (3) specifies a ratio of the focal length f1 of the first lens L 1  to the focal length f2 of the second lens L 2 . Within the range of the relational expression (3), it is more advantageous to achieve narrow angles with good optical characteristics. 
     In the camera lens according to the present embodiment, the first lens L 1  is a lens having a positive refractive power, and the following relational expression (4) is satisfied:
 
−0.20≤ R 1/ R 2≤−0.08  (4),
 
where
     R 1  is a curvature radius of an object side surface of the first lens L 1 ; and   R 2  is a curvature radius of an image side surface of the first lens L 2 .   

     The relational expression (4) specifies a ratio of the curvature radius R 1  of the object side surface of the first lens L 1  to the curvature radius R 2  of the image side surface of the first lens L 1 . Within the range of the relational expression (4), it is more advantageous to achieve narrow angles with good optical characteristics. 
     In the camera lens according to the present embodiment, the second lens L 2  is a lens having a negative refractive power, and the following relational expression (5) is satisfied:
 
0.10≤ R 3/ R 4≤0.25  (5),
 
where
     R 3  is a curvature radius of an object side surface of the second lens L 2 ; and   R 4  is a curvature radius of an image side surface of the second lens L 2 .   

     The relational expression (5) specifies a ratio of the curvature radius R 3  of the object side surface of the second lens L 2  to the curvature radius R 4  of the image side surface of the second lens L 2 . Within the range of the relational expression (5), it is more advantageous to achieve narrow angles with good optical characteristics. 
     In the camera lens according to the present embodiment, the third lens L 3  is a lens having a negative refractive power, and the following relational expression (6) is satisfied:
 
−0.35≤ R 5/ R 6≤−0.05  (6),
 
where
     R 5  is a curvature radius of an object side surface of the third lens L 3 ; and   R 6  is a curvature radius of an image side surface of the third lens L 3 .   

     The relational expression (6) specifies a ratio of the curvature radius R 5  of the object side surface of the third lens L 3  to the curvature radius R 6  of the image side surface of the third lens L 3 . Within the range of the relational expression (6), it is more advantageous to achieve narrow angles with good optical characteristics. 
     Each of the five lenses constituting the camera lens LA satisfies the structure and relational expression described above, and it is possible to obtain a camera lens which has a narrow angle and good optical properties. 
     EMBODIMENTS 
     
         
         f: the overall focal length of the camera lens LA; 
         f1: the focal length of the first lens L 1 ; 
         f2: the focal length of the second lens L 2 ; 
         f3: the focal length of the third lens L 3 ; 
         f4: the focal length of the fourth lens L 4 ; 
         f5: the focal length of the fifth lens L 5 ; 
         Fno: F-number; 
         2ω: full angle of view; 
         STOP: open aperture; 
         R: the curvature radius of the optical surface, which is the center curvature radius of the lens; 
         R 1 : the curvature radius of the object side surface of the first lens L 1 ; 
         R 2 : the curvature radius of the image side surface of the first lens L 1 ; 
         R 3 : the curvature radius of the object side surface of the second lens L 2 ; 
         R 4 : the curvature radius of the image side surface of the second lens L 2 ; 
         R 5 : the curvature radius of the object side surface of the third lens L 3 ; 
         R 6 : the curvature radius of the image side surface of the third lens L 3 ; 
         R 7 : the curvature radius of the object side surface of the fourth lens L 4 ; 
         R 8 : the curvature radius of the image side surface of the fourth lens L 4 ; 
         R 9 : the curvature radius of the object side surface of the fifth lens L 5 ; 
         R 10 : the curvature radius of the image side surface of the fifth lens L 5 ; 
         R 11 : the curvature radius of the object side surface of the glass plate GF 1 ; 
         R 12 : the curvature radius of the image side surface of the glass plate GF 1 ; 
         R 13 : the curvature radius of the object side surface of the glass plate GF 2 ; 
         R 14 : the curvature radius of the image side surface of the glass plate GF 2 ; 
         d: the center thickness of the lens or the distance between the lenses; 
         d 1 : the center thickness of the first lens L 1 ; 
         d 2 : the axial distance from the image side surface of the first lens L 1  to the object side surface of the second lens L 2 ; 
         d 3 : the center thickness of the second lens L 2 ; 
         d 4 : the axial distance from the image side surface of the second lens L 2  to the object side surface of the third lens L 3 ; 
         d 5 : the center thickness of the third lens L 3 ; 
         d 6 : the axial distance from the image side surface of the third lens L 3  to the object side surface of the fourth lens L 4 ; 
         d 7 : the center thickness of the fourth lens L 4 ; 
         d 8 : the axial distance from the image side surface of the fourth lens L 4  to the object side surface of the fifth lens L 5 ; 
         d 9 : the center thickness of the fifth lens L 5 ; 
         d 10 : the axial distance from the image side surface of the fifth lens L 5  to the object side surface of the glass plate GF 1 ; 
         d 11 : the center thickness of the glass plate GF 1 ; 
         d 12 : the axial distance from the image side surface of the glass plate GF 1  to the object side surface of the glass plate GF 12 ; 
         d 13 : the center thickness of the glass plate GF 12 ; 
         d 14 : the axial distance from the image side surface of the glass plate GF 2  to the imaging plane; 
         nd: the refractive index of line d; 
         nd1: the refractive index of lined of the first lens L 1 ; 
         nd2: the refractive index of line d of the second lens L 2 ; 
         nd3: the refractive index of line d of the third lens L 3 ; 
         nd4: the refractive index of line d of the fourth lens L 4 ; 
         nd5: the refractive index of line d of the fifth lens L 5 ; 
         nd6: the refractive index of line d of the glass plate GF 1 ; 
         nd7: the refractive index of line d of the glass plate GF 2 ; 
         ν: the Abbe number; 
         ν1: the Abbe number of the first lens L 1 ; 
         ν2: the Abbe number of the second lens L 2 ; 
         ν3: the Abbe number of the third lens L 3 ; 
         ν4: the Abbe number of the fourth lens L 4 ; 
         ν5: the Abbe number of the fifth lens L 5 ; 
         ν6: the Abbe number of the glass plate GF 1 ; 
         ν7: the Abbe number of the glass plate GF 2 ; 
         TTL: optical length (the axial distance from the object side surface of the first lens L 1  to the imaging plane); 
         LB: the axial distance from the image side surface of the fifth lens L 5  to the imaging plane (including thicknesses of the glass plates GF 1  and GF 2 ); and 
         IH: image height.
 
 y =( x   2   /R )/[1+{1−( k+ 1)( x   2   /R   2 )} 1/2 ]+ A 4 x   4   +A 6 x   6   +A 8 x   8   +A 10 x   10   +A 12 x   12   +A 14 x   14   (7)
 
       
    
     R is the axial curvature radius, k is the conic coefficient, and A4, A6, A8, A10, A12 and A14 are aspheric coefficients. 
     For the sake of convenience, the aspheric surface represented by the relational expression (7) is used as an aspheric surface of each of the lenses. However, the present disclosure is not limited to the aspheric surface represented by the relational expression (7). 
     Embodiment 1 
       FIG. 2  is a structural diagram of the camera lens LA of Embodiment 1. Each of the first lens L 1  to the fifth lens L 5  constituting the camera lens LA of Embodiment 1 has a curvature radius R of the object side and image side, a center thickness of the lens or a distance d between the lenses, a refractive index nd and an Abbe number νd as shown in Table 1, a conic coefficient k and an aspheric coefficient as shown in Table 2, and 2ω, Fno, f, f1, f2, f3, f4, f5, TTL and IH as shown in Table 3. 
     
       
         
           
               
               
               
               
               
               
             
               
                 TABLE 1 
               
               
                   
               
               
                   
                   
                   
                   
                   
                 Effective 
               
               
                   
                   
                   
                   
                   
                 Radius 
               
               
                   
                 R (mm) 
                 d (mm) 
                 nd 
                 νd 
                 (mm) 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 6.0971 
                 d1 
                 4.192 
                 nd1 
                 1.5439 
                 ν1 
                 55.95 
                 3.488 
               
               
                 R2 
                 −33.8729 
                 d2 
                 1.726 
                   
                   
                   
                   
                 2.770 
               
               
                 R3 
                 −3.4779 
                 d3 
                 0.608 
                 nd2 
                 1.6606 
                 ν2 
                 20.40 
                 2.154 
               
               
                 R4 
                 −18.6600 
                 d4 
                 0.142 
                   
                   
                   
                   
                 2.062 
               
               
                 STOP 
                 ∞ 
                   
                 0.911 
                   
                   
                   
                   
                 2.020 
               
               
                 R5 
                 19.5727 
                 d5 
                 0.505 
                 nd3 
                 1.6606 
                 ν3 
                 20.40 
                 2.044 
               
               
                 R6 
                 −150.5595 
                 d6 
                 0.191 
                   
                   
                   
                   
                 2.050 
               
               
                 R7 
                 −11.6730 
                 d7 
                 0.354 
                 nd4 
                 1.6150 
                 ν4 
                 25.92 
                 2.049 
               
               
                 R8 
                 −8.5682 
                 d8 
                 0.050 
                   
                   
                   
                   
                 2.026 
               
               
                 R9 
                 5.4842 
                 d9 
                 2.413 
                 nd5 
                 1.5439 
                 ν5 
                 55.95 
                 2.076 
               
               
                 R10 
                 5.7120 
                 d10 
                 0.500 
                   
                   
                   
                   
                 2.031 
               
               
                 R11 
                 ∞ 
                 d11 
                 6.000 
                 nd6 
                 1.7725 
                 ν6 
                 49.60 
                 2.052 
               
               
                 R12 
                 ∞ 
                 d12 
                 1.514 
                   
                   
                   
                   
                 2.384 
               
               
                 R13 
                 ∞ 
                 d13 
                 0.210 
                 nd7 
                 1.5168 
                 ν7 
                 64.17 
                 2.534 
               
               
                 R14 
                 ∞ 
                 d14 
                 1.050 
                   
                   
                   
                   
                 2.548 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                 TABLE 2 
               
             
            
               
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric coefficient 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
               
               
                   
               
               
                 R1 
                 0.0000E+00 
                  7.2816E−07 
                  4.3222E−06 
                 −4.5084E−07 
                 0.0000E+00 
                  0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 0.0000E+00 
                  1.6177E−03 
                 −1.4425E−04 
                  3.6718E−06 
                 0.0000E+00 
                  0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −1.3727E+01  
                  6.8812E−03 
                 −5.2761E−03 
                  1.3593E−03 
                 −1.7636E−04  
                  9.3101E−06 
                 0.0000E+00 
               
               
                 R4 
                 0.0000E+00 
                  4.4010E−02 
                 −2.1327E−02 
                  5.8907E−03 
                 −9.9275E−04  
                  9.2575E−05 
                 −3.7060E−06  
               
               
                 R5 
                 0.0000E+00 
                  1.7661E−02 
                 −2.9537E−03 
                 −3.9329E−03 
                 1.6534E−03 
                 −2.4322E−04 
                 1.2047E−05 
               
               
                 R6 
                 0.0000E+00 
                 −3.0496E−02 
                  3.8217E−02 
                 −2.2730E−02 
                 6.5018E−03 
                 −8.8667E−04 
                 4.6794E−05 
               
               
                 R7 
                 0.0000E+00 
                 −6.4195E−02 
                  7.2619E−02 
                 −3.3743E−02 
                 8.3180E−03 
                 −1.0623E−03 
                 5.4614E−05 
               
               
                 R8 
                 −2.1380E+00  
                 −2.1982E−02 
                  3.1169E−02 
                 −1.3072E−02 
                 2.6964E−03 
                 −2.9564E−04 
                 1.3248E−05 
               
               
                 R9 
                 3.9513E+00 
                 −1.1452E−02 
                  2.2362E−03 
                 −1.4785E−03 
                 3.9142E−04 
                 −5.8130E−05 
                 3.2430E−06 
               
               
                 R10 
                 5.0606E+00 
                 −8.6214E−03 
                 −9.9414E−04 
                  6.4323E−04 
                 −2.8055E−04  
                  5.4493E−05 
                 −4.8542E−06  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 3 
               
               
                   
                   
               
             
            
               
                   
                 2ω (°) 
                 18.00 
               
               
                   
                 Fno 
                 2.50 
               
               
                   
                 f (mm) 
                 16.444 
               
               
                   
                 f1 (mm) 
                 9.865 
               
               
                   
                 f2 (mm) 
                 −6.576 
               
               
                   
                 f3 (mm) 
                 26.254 
               
               
                   
                 f4 (mm) 
                 50.200 
               
               
                   
                 f5 (mm) 
                 53.429 
               
               
                   
                 TTL (mm) 
                 20.367 
               
               
                   
                 LB (mm) 
                 9.274 
               
               
                   
                 IH (mm) 
                 2.619 
               
               
                   
                   
               
            
           
         
       
     
     Table 16 below shows the numerical values defined in Embodiments 1 to 5 and the numerical values corresponding to the parameters specified by the relational expressions (1) to (6). 
     As shown in Table 16, Embodiment 1 satisfies the relational expressions (1) to (6). 
     The spherical aberration of the camera lens LA of Embodiment 1 is as shown in  FIG. 3 , the magnification chromatic aberration of magnification thereof is as shown in  FIG. 4 , and the field curvature and the distortion are as shown in  FIG. 5 . Furthermore, the field curvature S in  FIG. 5  is the field curvature for the sagittal imaging plane, and T is the field curvature for the meridianal imaging plane, and the same applies to Embodiments 2 to 5. As shown in Table 3, the camera lens LA of Embodiment 1 has a narrow angle. As can be seen from  FIGS. 3 to 5 , the camera lens LA of Embodiment 1 has good optical properties. 
     Embodiment 2 
       FIG. 6  is a structural diagram of the camera lens LA of Embodiment 2. Each of the first lens L 1  to the fifth lens L 5  constituting the camera lens LA of Embodiment 2 has a curvature radius R of the object side and image side, a center thickness of the lens or a distance d between the lenses, a refractive index nd and an Abbe number vd as shown in Table 4, a conic coefficient k and an aspheric coefficient as shown in Table 5, and 2ω, Fno, f, f 1 , f 2 , f 3 , f 4 , f 5 , TTL and IH as shown in Table 6. 
     
       
         
           
               
               
               
               
               
               
             
               
                 TABLE 4 
               
               
                   
               
               
                   
                   
                   
                   
                   
                 Effective 
               
               
                   
                   
                   
                   
                   
                 Radius 
               
               
                   
                 R (mm) 
                 d (mm) 
                 nd 
                 νd 
                 (mm) 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 5.8736 
                 d1 
                 4.598 
                 nd1 
                 1.5439 
                 ν1 
                 55.95 
                 3.558 
               
               
                 R2 
                 −57.1741 
                 d2 
                 1.330 
                   
                   
                   
                   
                 2.642 
               
               
                 R3 
                 −3.4985 
                 d3 
                 0.488 
                 nd2 
                 1.6606 
                 ν2 
                 20.40 
                 2.189 
               
               
                 R4 
                 −19.0674 
                 d4 
                 0.373 
                   
                   
                   
                   
                 2.107 
               
               
                 STOP 
                 ∞ 
                   
                 0.173 
                   
                   
                   
                   
                 2.036 
               
               
                 R5 
                 15.4276 
                 d5 
                 0.669 
                 nd3 
                 1.6606 
                 ν3 
                 20.40 
                 2.066 
               
               
                 R6 
                 −45.3972 
                 d6 
                 0.515 
                   
                   
                   
                   
                 2.029 
               
               
                 R7 
                 −4.3454 
                 d7 
                 0.487 
                 nd4 
                 1.6150 
                 ν4 
                 25.92 
                 2.000 
               
               
                 R8 
                 −4.2288 
                 d8 
                 0.050 
                   
                   
                   
                   
                 2.016 
               
               
                 R9 
                 5.7136 
                 d9 
                 2.231 
                 nd5 
                 1.5439 
                 ν5 
                 55.95 
                 2.050 
               
               
                 R10 
                 5.9139 
                 d10 
                 0.500 
                   
                   
                   
                   
                 2.013 
               
               
                 R11 
                 ∞ 
                 d11 
                 6.000 
                 nd6 
                 1.7725 
                 ν6 
                 49.60 
                 2.034 
               
               
                 R12 
                 ∞ 
                 d12 
                 1.833 
                   
                   
                   
                   
                 2.362 
               
               
                 R13 
                 ∞ 
                 d13 
                 0.210 
                 nd7 
                 1.5168 
                 ν7 
                 64.17 
                 2.540 
               
               
                 R14 
                 ∞ 
                 d14 
                 1.050 
                   
                   
                   
                   
                 2.553 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                 TABLE 5 
               
             
            
               
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric coefficient 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
               
               
                   
               
               
                 R1 
                 0.0000E+00 
                 −4.8363E−05 
                  7.3906E−06 
                 −1.0729E−07  
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 0.0000E+00 
                 −3.9287E−04 
                  1.7018E−04 
                 −1.3108E−05  
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −1.1254E+01  
                  3.7449E−03 
                 −6.2480E−03 
                 2.2916E−03 
                 −3.6772E−04 
                 2.1826E−05 
                 0.0000E+00 
               
               
                 R4 
                 0.0000E+00 
                  4.5501E−02 
                 −2.4999E−02 
                 6.9076E−03 
                 −9.0705E−04 
                 3.8104E−05 
                 1.0180E−06 
               
               
                 R5 
                 0.0000E+00 
                  2.1143E−02 
                 −1.2668E−02 
                 1.8083E−03 
                  3.0569E−04 
                 −9.2082E−05  
                 6.0773E−06 
               
               
                 R6 
                 0.0000E+00 
                 −2.7968E−04 
                 −2.8025E−03 
                 −1.1845E−04  
                  3.7203E−04 
                 −7.1450E−05  
                 4.5193E−06 
               
               
                 R7 
                 0.0000E+00 
                 −1.1893E−03 
                  6.4305E−03 
                 −4.4240E−03  
                  1.6371E−03 
                 −3.2134E−04  
                 2.4943E−05 
               
               
                 R8 
                 −1.6304E+00  
                  1.1861E−02 
                 −5.5245E−03 
                 1.7742E−03 
                 −1.9042E−04 
                 −2.3993E−05  
                 4.6819E−06 
               
               
                 R9 
                 5.2707E+00 
                  1.4485E−03 
                 −1.2074E−02 
                 6.2051E−03 
                 −1.7497E−03 
                 2.5991E−04 
                 −1.7064E−05  
               
               
                 R10 
                 6.1276E+00 
                 −8.7444E−03 
                 −9.2532E−04 
                 7.9874E−04 
                 −3.9218E−04 
                 8.5660E−05 
                 −8.5218E−06  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 6 
               
               
                   
                   
               
             
            
               
                   
                 2ω (°) 
                 18.00 
               
               
                   
                 Fno 
                 2.50 
               
               
                   
                 f (mm) 
                 16.439 
               
               
                   
                 f1 (mm) 
                 10.051 
               
               
                   
                 f2 (mm) 
                 −6.569 
               
               
                   
                 f3 (mm) 
                 17.509 
               
               
                   
                 f4 (mm) 
                 98.896 
               
               
                   
                 f5 (mm) 
                 62.996 
               
               
                   
                 TTL (mm) 
                 20.508 
               
               
                   
                 LB (mm) 
                 9.593 
               
               
                   
                 IH (mm) 
                 2.619 
               
               
                   
                   
               
            
           
         
       
     
     As shown in Table 16, Embodiment 2 satisfies the relational expressions (1) to (6). 
     The spherical aberration of the camera lens LA of Embodiment 2 is as shown in  FIG. 7 , the magnification chromatic aberration of magnification thereof is as shown in  FIG. 8 , and the field curvature and the distortion are as shown in  FIG. 9 . As shown in Table 6, the camera lens LA of Embodiment 2 has a narrow angle. As can be seen from  FIGS. 7 to 9 , the camera lens LA of Embodiment 2 has good optical properties. 
     Embodiment 3 
       FIG. 10  is a structural diagram of the camera lens LA of Embodiment 3. Each of the first lens L 1  to the fifth lens L 5  constituting the camera lens LA of Embodiment 1 has a curvature radius R of the object side and image side, a center thickness of the lens or a distance d between the lenses, a refractive index nd and an Abbe number vd as shown in Table 7, a conic coefficient k and an aspheric coefficient as shown in Table 8, and 2ω, Fno, f, f1, f2, f3, f4, f5, TTL and IH as shown in Table 9. 
     
       
         
           
               
               
               
               
               
               
             
               
                 TABLE 7 
               
               
                   
               
               
                   
                   
                   
                   
                   
                 Effective 
               
               
                   
                   
                   
                   
                   
                 Radius 
               
               
                   
                 R (mm) 
                 d (mm) 
                 nd 
                 νd 
                 (mm) 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 5.9599 
                 d1 
                 4.553 
                 nd1 
                 1.5439 
                 ν1 
                 55.95 
                 3.478 
               
               
                 R2 
                 −48.6640 
                 d2 
                 1.535 
                   
                   
                   
                   
                 2.654 
               
               
                 R3 
                 −3.5330 
                 d3 
                 0.276 
                 nd2 
                 1.6606 
                 ν2 
                 20.40 
                 2.100 
               
               
                 R4 
                 −18.8333 
                 d4 
                 0.137 
                   
                   
                   
                   
                 2.055 
               
               
                 STOP 
                 ∞ 
                   
                 0.135 
                   
                   
                   
                   
                 2.017 
               
               
                 R5 
                 18.5184 
                 d5 
                 1.198 
                 nd3 
                 1.6606 
                 ν3 
                 20.40 
                 2.057 
               
               
                 R6 
                 −55.0356 
                 d6 
                 0.493 
                   
                   
                   
                   
                 2.003 
               
               
                 R7 
                 −4.5524 
                 d7 
                 1.076 
                 nd4 
                 1.6150 
                 ν4 
                 25.92 
                 1.984 
               
               
                 R8 
                 −4.2366 
                 d8 
                 0.081 
                   
                   
                   
                   
                 2.056 
               
               
                 R9 
                 5.7382 
                 d9 
                 2.068 
                 nd5 
                 1.5439 
                 ν5 
                 55.95 
                 2.129 
               
               
                 R10 
                 5.8046 
                 d10 
                 0.500 
                   
                   
                   
                   
                 2.115 
               
               
                 R11 
                 ∞ 
                 d11 
                 6.000 
                 nd6 
                 1.7725 
                 ν6 
                 49.60 
                 2.133 
               
               
                 R12 
                 ∞ 
                 d12 
                 1.841 
                   
                   
                   
                   
                 2.406 
               
               
                 R13 
                 ∞ 
                 d13 
                 0.210 
                 nd7 
                 1.5168 
                 ν7 
                 64.17 
                 2.555 
               
               
                 R14 
                 ∞ 
                 d14 
                 1.050 
                   
                   
                   
                   
                 2.566 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                 TABLE 8 
               
             
            
               
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric coefficient 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
               
               
                   
               
               
                 R1 
                 0.0000E+00 
                 −2.3007E−05  
                  7.0614E−06 
                 −4.7619E−07 
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 0.0000E+00 
                 −6.4283E−05  
                  5.6494E−05 
                 −8.2921E−06 
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −1.0862E+01  
                 7.1680E−03 
                 −8.9927E−03 
                  3.1817E−03 
                 −5.0425E−04 
                 2.8910E−05 
                 0.0000E+00 
               
               
                 R4 
                 0.0000E+00 
                 4.4715E−02 
                 −2.1906E−02 
                  4.3028E−03 
                 −8.1889E−05 
                 −6.1647E−05  
                 3.8884E−06 
               
               
                 R5 
                 0.0000E+00 
                 1.2997E−02 
                 −2.6397E−03 
                 −3.1795E−03 
                  1.4390E−03 
                 −1.8965E−04  
                 6.2731E−06 
               
               
                 R6 
                 0.0000E+00 
                 −5.0769E−03  
                  7.5690E−03 
                 −7.3717E−03 
                  2.7639E−03 
                 −4.6618E−04  
                 3.1374E−05 
               
               
                 R7 
                 0.0000E+00 
                 2.8080E−03 
                  6.9540E−03 
                 −8.1730E−03 
                  3.7420E−03 
                 −8.0178E−04  
                 6.6348E−05 
               
               
                 R8 
                 −1.7135E+00  
                 1.6467E−02 
                 −1.1647E−02 
                  5.1830E−03 
                 −1.1326E−03 
                 9.9078E−05 
                 −1.3234E−06  
               
               
                 R9 
                 5.1028E+00 
                 4.7754E−03 
                 −1.5056E−02 
                  8.0189E−03 
                 −2.3495E−03 
                 3.4630E−04 
                 −2.1030E−05  
               
               
                 R10 
                 5.3531E+00 
                 −1.1425E−02  
                 −5.7153E−04 
                  6.7000E−04 
                 −3.2326E−04 
                 6.4624E−05 
                 −5.6272E−06  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 9 
               
               
                   
                   
               
             
            
               
                   
                 2ω (°) 
                 18.00 
               
               
                   
                 Fno 
                 2.50 
               
               
                   
                 f (mm) 
                 16.533 
               
               
                   
                 f1 (mm) 
                 10.057 
               
               
                   
                 f2 (mm) 
                 −6.631 
               
               
                   
                 f3 (mm) 
                 21.114 
               
               
                   
                 f4 (mm) 
                 43.223 
               
               
                   
                 f5 (mm) 
                 77.039 
               
               
                   
                 TTL (mm) 
                 21.152 
               
               
                   
                 LB (mm) 
                 9.601 
               
               
                   
                 IH (mm) 
                 2.619 
               
               
                   
                   
               
            
           
         
       
     
     As shown in Table 16, Embodiment 3 satisfies the relational expressions (1) to (6). 
     The spherical aberration of the camera lens LA of Embodiment 3 is as shown in  FIG. 11 , the magnification chromatic aberration of magnification thereof is as shown in  FIG. 12 , and the field curvature and the distortion are as shown in  FIG. 13 . As shown in Table 9, the camera lens LA of Embodiment 3 has a narrow angle. As can be seen from  FIGS. 11 to 13 , the camera lens LA of Embodiment 3 has good optical properties. 
     Embodiment 4 
       FIG. 14  is a structural diagram of the camera lens LA of Embodiment 4. Each of the first lens L 1  to the fifth lens L 5  constituting the camera lens LA of Embodiment 4 has a curvature radius R of the object side and image side, a center thickness of the lens or a distance d between the lenses, a refractive index nd and an Abbe number vd as shown in Table 10, a conic coefficient k and an aspheric coefficient as shown in Table 11, and 2ω, Fno, f, f1, f2, f3, f4, f5, TTL and IH as shown in Table 12. 
     
       
         
           
               
               
               
               
               
               
             
               
                 TABLE 10 
               
               
                   
               
               
                   
                   
                   
                   
                   
                 Effective 
               
               
                   
                   
                   
                   
                   
                 Radius 
               
               
                   
                 R (mm) 
                 d (mm) 
                 nd 
                 νd 
                 (mm) 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 5.9634 
                 d1 
                 4.600 
                 nd1 
                 1.5439 
                 ν1 
                 55.95 
                 3.492 
               
               
                 R2 
                 −35.2721 
                 d2 
                 1.487 
                   
                   
                   
                   
                 2.664 
               
               
                 R3 
                 −3.0679 
                 d3 
                 0.557 
                 nd2 
                 1.6606 
                 ν2 
                 20.40 
                 2.145 
               
               
                 R4 
                 −27.8900 
                 d4 
                 0.179 
                   
                   
                   
                   
                 2.052 
               
               
                 STOP 
                 ∞ 
                   
                 0.351 
                   
                   
                   
                   
                 2.015 
               
               
                 R5 
                 9.1298 
                 d5 
                 0.755 
                 nd3 
                 1.6606 
                 ν3 
                 20.40 
                 2.065 
               
               
                 R6 
                 −44.2634 
                 d6 
                 0.549 
                   
                   
                   
                   
                 2.012 
               
               
                 R7 
                 −4.3992 
                 d7 
                 0.399 
                 nd4 
                 1.6150 
                 ν4 
                 25.92 
                 1.981 
               
               
                 R8 
                 −4.2435 
                 d8 
                 0.050 
                   
                   
                   
                   
                 1.991 
               
               
                 R9 
                 5.6357 
                 d9 
                 1.929 
                 nd5 
                 1.5439 
                 ν5 
                 55.95 
                 2.031 
               
               
                 R10 
                 5.8279 
                 d10 
                 0.500 
                   
                   
                   
                   
                 2.005 
               
               
                 R11 
                 ∞ 
                 d11 
                 6.000 
                 nd6 
                 1.7725 
                 ν6 
                 49.60 
                 2.026 
               
               
                 R12 
                 ∞ 
                 d12 
                 1.964 
                   
                   
                   
                   
                 2.348 
               
               
                 R13 
                 ∞ 
                 d13 
                 0.210 
                 nd7 
                 1.5168 
                 ν7 
                 64.17 
                 2.536 
               
               
                 R14 
                 ∞ 
                 d14 
                 1.050 
                   
                   
                   
                   
                 2.549 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                 TABLE 11 
               
             
            
               
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric coefficient 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
               
               
                   
               
               
                 R1 
                 0.0000E+00 
                 −3.9317E−05  
                  3.1747E−06 
                 −4.2960E−07  
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 0.0000E+00 
                 9.2222E−04 
                 −1.1761E−04 
                 3.1744E−06 
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −1.0859E+01  
                 2.3729E−03 
                 −3.8598E−03 
                 1.0791E−03 
                 −1.2446E−04 
                 4.7457E−05 
                 0.0000E+00 
               
               
                 R4 
                 0.0000E+00 
                 4.6614E−02 
                 −2.4695E−02 
                 7.1474E−03 
                 −1.3064E−03 
                 1.5999E−04 
                 −1.0112E−05  
               
               
                 R5 
                 0.0000E+00 
                 1.3555E−02 
                 −5.0604E−03 
                 −1.2912E−03  
                  6.2364E−04 
                 −3.4468E−05  
                 −3.2320E−06  
               
               
                 R6 
                 0.0000E+00 
                 −2.7598E−03  
                  8.2922E−03 
                 −8.6939E−03  
                  3.1651E−03 
                 −5.0630E−04  
                 3.2676E−05 
               
               
                 R7 
                 0.0000E+00 
                 −9.8487E−04  
                  1.3209E−02 
                 −1.2364E−02  
                  5.2167E−03 
                 −1.0819E−03  
                 8.7987E−05 
               
               
                 R8 
                 −1.9155E+00  
                 1.6941E−02 
                 −1.1170E−02 
                 5.0192E−03 
                 −1.0912E−03 
                 7.1087E−05 
                 3.5048E−06 
               
               
                 R9 
                 5.3947E+00 
                 5.8242E−03 
                 −1.8439E−02 
                 1.1069E−02 
                 −3.6454E−03 
                 6.1469E−04 
                 −4.2859E−05  
               
               
                 R10 
                 5.8437E+00 
                 −8.8864E−03  
                 −1.8093E−03 
                 1.4711E−03 
                 −6.4484E−04 
                 1.3410E−04 
                 −1.2036E−05  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 12 
               
               
                   
                   
               
             
            
               
                   
                 2ω (°) 
                 17.99 
               
               
                   
                 Fno 
                 2.50 
               
               
                   
                 f (mm) 
                 16.478 
               
               
                   
                 f1 (mm) 
                 9.762 
               
               
                   
                 f2 (mm) 
                 −5.266 
               
               
                   
                 f3 (mm) 
                 11.523 
               
               
                   
                 f4 (mm) 
                 98.677 
               
               
                   
                 f5 (mm) 
                 69.275 
               
               
                   
                 TTL (mm) 
                 20.580 
               
               
                   
                 LB (mm) 
                 9.724 
               
               
                   
                 IH (mm) 
                 2.619 
               
               
                   
                   
               
            
           
         
       
     
     As shown in Table 16, Embodiment 4 satisfies the relational expressions (1) to (6). 
     The spherical aberration of the camera lens LA of Embodiment 4 is as shown in  FIG. 15 , the magnification chromatic aberration of magnification thereof is as shown in  FIG. 16 , and the field curvature and the distortion are as shown in  FIG. 17 . As shown in Table 12, the camera lens LA of Embodiment 4 has a narrow angle. As can be seen from  FIGS. 15 to 17  the camera lens LA of Embodiment 4 has good optical properties. 
     Embodiment 5 
       FIG. 18  is a structural diagram of the camera lens LA of Embodiment 5. Each of the first lens L 1  to the fifth lens L 5  constituting the camera lens LA of Embodiment 5 has a curvature radius R of the object side and image side, a center thickness of the lens or a distance d between the lenses, a refractive index nd and an Abbe number vd as shown in Table 13, a conic coefficient k and an aspheric coefficient as shown in Table 14, and 2ω, Fno, f, f1, f2, f3, f4, f5, TTL and IH as shown in Table 15. 
     
       
         
           
               
               
               
               
               
               
             
               
                 TABLE 13 
               
               
                   
               
               
                   
                   
                   
                   
                   
                 Effective 
               
               
                   
                   
                   
                   
                   
                 Radius 
               
               
                   
                 R (mm) 
                 d (mm) 
                 nd 
                 νd 
                 (mm) 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 6.1007 
                 d1 
                 4.195 
                 nd1 
                 1.5439 
                 ν1 
                 55.95 
                 3.400 
               
               
                 R2 
                 −33.8926 
                 d2 
                 1.398 
                   
                   
                   
                   
                 3.410 
               
               
                 R3 
                 −3.6264 
                 d3 
                 0.449 
                 nd2 
                 1.6606 
                 ν2 
                 20.40 
                 2.928 
               
               
                 R4 
                 −22.9725 
                 d4 
                 0.167 
                   
                   
                   
                   
                 2.371 
               
               
                 STOP 
                 ∞ 
                   
                 0.328 
                   
                   
                   
                   
                 2.169 
               
               
                 R5 
                 26.8288 
                 d5 
                 0.803 
                 nd3 
                 1.6606 
                 ν3 
                 20.40 
                 2.170 
               
               
                 R6 
                 −205.5056 
                 d6 
                 0.080 
                   
                   
                   
                   
                 2.140 
               
               
                 R7 
                 −15.0717 
                 d7 
                 0.573 
                 nd4 
                 1.6150 
                 ν4 
                 25.92 
                 2.151 
               
               
                 R8 
                 −9.2912 
                 d8 
                 0.050 
                   
                   
                   
                   
                 2.101 
               
               
                 R9 
                 4.8621 
                 d9 
                 2.177 
                 nd5 
                 1.5439 
                 ν5 
                 55.95 
                 2.039 
               
               
                 R10 
                 5.3424 
                 d10 
                 0.500 
                   
                   
                   
                   
                 2.034 
               
               
                 R11 
                 ∞ 
                 d11 
                 6.000 
                 nd6 
                 1.7725 
                 ν6 
                 49.60 
                 2.053 
               
               
                 R12 
                 ∞ 
                 d12 
                 2.345 
                   
                   
                   
                   
                 2.345 
               
               
                 R13 
                 ∞ 
                 d13 
                 0.210 
                 nd7 
                 1.5168 
                 ν7 
                 64.17 
                 2.548 
               
               
                 R14 
                 ∞ 
                 d14 
                 1.050 
                   
                   
                   
                   
                 2.560 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                 TABLE 14 
               
             
            
               
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric coefficient 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
               
               
                   
               
               
                 R1 
                 0.0000E+00 
                  2.1257E−05 
                  1.5340E−07 
                  6.5263E−08 
                 0.0000E+00 
                  0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 0.0000E+00 
                  2.0735E−03 
                 −5.2894E−05 
                 −1.6288E−06 
                 0.0000E+00 
                  0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −1.6926E+01  
                  5.9618E−03 
                 −3.2002E−03 
                  8.0629E−04 
                 −1.1644E−04  
                  6.8799E−06 
                 0.0000E+00 
               
               
                 R4 
                 0.0000E+00 
                  5.5380E−02 
                 −2.7003E−02 
                  7.2189E−03 
                 −1.2148E−03  
                  1.1496E−04 
                 −4.4200E−06  
               
               
                 R5 
                 0.0000E+00 
                  3.0028E−02 
                 −6.6986E−03 
                 −5.2680E−03 
                 2.3254E−03 
                 −3.3998E−04 
                 1.7868E−05 
               
               
                 R6 
                 0.0000E+00 
                 −9.4896E−02 
                  9.0683E−02 
                 −4.4054E−02 
                 1.1527E−02 
                 −1.5305E−03 
                 8.2136E−05 
               
               
                 R7 
                 0.0000E+00 
                 −1.3929E−01 
                  1.3906E−01 
                 −6.1912E−02 
                 1.5302E−02 
                 −2.0008E−03 
                 1.0726E−04 
               
               
                 R8 
                 −1.8021E+01  
                 −2.1278E−02 
                  4.0450E−02 
                 −2.1600E−02 
                 5.7000E−03 
                 −7.7619E−04 
                 4.3111E−05 
               
               
                 R9 
                 2.3095E+00 
                 −7.6939E−03 
                  4.3371E−03 
                 −6.0627E−03 
                 2.2438E−03 
                 −3.7462E−04 
                 2.4178E−05 
               
               
                 R10 
                 3.7177E+00 
                 −9.6949E−03 
                 −1.2892E−03 
                  4.6252E−04 
                 −1.1278E−04  
                  1.3143E−05 
                 −8.9383E−07  
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 15 
               
               
                   
                   
               
             
            
               
                   
                 2ω (°) 
                 18.00 
               
               
                   
                 Fno 
                 2.50 
               
               
                   
                 f (mm) 
                 16.432 
               
               
                   
                 f1 (mm) 
                 9.870 
               
               
                   
                 f2 (mm) 
                 −6.580 
               
               
                   
                 f3 (mm) 
                 35.739 
               
               
                   
                 f4 (mm) 
                 37.959 
               
               
                   
                 f5 (mm) 
                 38.295 
               
               
                   
                 TTL (mm) 
                 20.326 
               
               
                   
                 LB (mm) 
                 10.105 
               
               
                   
                 IH (mm) 
                 2.619 
               
               
                   
                   
               
            
           
         
       
     
     As shown in Table 16, Embodiment 5 satisfies the relational expressions (1) to (6). 
     The spherical aberration of the camera lens LA of Embodiment 1 is as shown in  FIG. 19 , the magnification chromatic aberration of magnification thereof is as shown in  FIG. 20 , and the field curvature and the distortion are as shown in  FIG. 21 . As shown in Table 15, the camera lens LA of Embodiment 5 has a narrow angle. As can be seen from  FIGS. 19 to 21 , the camera lens LA of Embodiment 5 has good optical properties. 
     Table 16 shows the numerical values defined in Embodiments 1 to 5 and the numerical values corresponding to the parameters specified by the relational expressions (1) to (6). 
     
       
         
           
               
               
               
               
               
               
               
             
               
                 TABLE 16 
               
               
                   
               
               
                   
                 Embodiment 1 
                 Embodiment 2 
                 Embodiment 3 
                 Embodiment 4 
                 Embodiment 5 
                   
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
            
               
                 (f1 + f3 + f4 + f5)/f 
                 8.498 
                 11.525 
                 9.159 
                 11.484 
                 7.416 
                 Exp(1) 
               
               
                 f2/f 
                 −0.400 
                 −0.400 
                 −0.401 
                 −0.320 
                 −0.400 
                 Exp(2) 
               
               
                 f1/f2 
                 −1.500 
                 −1.530 
                 −1.517 
                 −1.854 
                 −1.500 
                 Exp(3) 
               
               
                 R1/R2 
                 −0.180 
                 −0.103 
                 −0.122 
                 −0.169 
                 −0.180 
                 Exp(4) 
               
               
                 R3/R4 
                 0.186 
                 0.183 
                 0.188 
                 0.110 
                 0.158 
                 Exp(5) 
               
               
                 R5/R6 
                 −0.130 
                 −0.340 
                 −0.336 
                 −0.206 
                 −0.130 
                 Exp(6) 
               
               
                   
               
            
           
         
       
     
     LIST OF REFERENCE NUMBERS 
     
         
         LA: camera lens 
         STOP: open aperture 
         L 1 : the first lens 
         L 2 : the second lens 
         L 3 : the third lens 
         L 4 : the fourth lens 
         L 5 : the fifth lens 
         GF 1 : glass plate  1   
         GF 2 : glass plate  2   
         R: the curvature radius of the optical surface, which is the center curvature radius of the lens 
         R 1 : the curvature radius of the object side surface of the first lens L 1   
         R 2 : a curvature radius of the image side surface of the first lens L 1   
         R 3 : a curvature radius of the object side surface of the second lens L 2   
         R 4 : a curvature radius of the image side surface of the second lens L 2   
         R 5 : a curvature radius of the object side surface of the third lens L 3   
         R 6 : a curvature radius of the image side surface of the third lens L 3   
         R 7 : a curvature radius of the object side surface of the fourth lens L 4   
         R 8 : a curvature radius of the image side surface of the fourth lens L 4   
         R 9 : a curvature radius of the object side surface of the fifth lens L 5   
         R 10 : a curvature radius of the image side surface of the fifth lens L 5   
         R 11 : a curvature radius of the object side surface of the glass plate GF 1   
         R 12 : a curvature radius of the image side surface of the glass plate GF 1   
         R 13 : a curvature radius of the object side surface of the glass plate GF 2   
         R 14 : a curvature radius of the image side surface of the glass plate GF 2   
         d: the center thickness of the lens or the distance between the lenses 
         d 1 : the center thickness of the first lens L 1   
         d 2 : the axial distance from the image side surface of the first lens L 1  to the object side surface of the second lens L 2   
         d 3 : the center thickness of the second lens L 2   
         d 4 : the axial distance from the image side surface of the second lens L 2  to the object side surface of the third lens L 3   
         d 5 : the center thickness of the third lens L 3   
         d 6 : the axial distance from the image side surface of the third lens L 3  to the object side surface of the fourth lens L 4   
         d 7 : the center thickness of the fourth lens L 4   
         d 8 : the axial distance from the image side surface of the fourth lens L 4  to the object side surface of the fifth lens L 5   
         d 9 : the center thickness of the fifth lens L 5   
         d 10 : the axial distance from the image side surface of the fifth lens L 5  to the object side surface of the glass plate GF 1 ; 
         d 11 : the center thickness of the glass plate GF 1 ; 
         d 12 : the axial distance from the image side surface of the glass plate GF 1  to the object side surface of the glass plate GF 12 ; 
         d 13 : the center thickness of the glass plate GF 12 ; 
         d 14 : the axial distance from the image side surface of the glass plate GF 2  to the imaging plane; 
         nd: the refractive index of line d; 
         nd 1 : the refractive index of lined of the first lens L 1 ; 
         nd 2 : the refractive index of line d of the second lens L 2 ; 
         nd 3 : the refractive index of line d of the third lens L 3 ; 
         nd 4 : the refractive index of line d of the fourth lens L 4 ; 
         nd 5 : the refractive index of line d of the fifth lens L 5 ; 
         nd 6 : the refractive index of line d of the glass plate GF 1 ; 
         nd 7 : the refractive index of line d of the glass plate GF 2 ; 
         ν: the Abbe number; 
         ν 1 : the Abbe number of the first lens L 1 ; 
         ν 2 : the Abbe number of the second lens L 2 ; 
         ν 3 : the Abbe number of the third lens L 3 ; 
         ν 4 : the Abbe number of the fourth lens L 4 ; 
         ν 5 : the Abbe number of the fifth lens L 5 ; 
         ν 6 : the Abbe number of the glass plate GF 1 ; 
         ν 7 : the Abbe number of the glass plate GF 2 .