Patent ID: 12189091

DETAILED DESCRIPTION

Referring toFIGS.1A and1B,FIG.1Ashows an optical lens assembly in accordance with a first embodiment of the present invention, andFIG.1Bshows, in order from left to right, the field curvature curve and the distortion curve of the first embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the first embodiment of the present invention comprises, in order from an object side to an image side along an optical axis190: a first lens110, a second lens120, a third lens130, a stop100, a fourth lens140, a fifth lens150, a sixth lens160, a seventh lens170, a filter181, and an image plane183. The optical lens assembly is provided with an image sensor185. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor185is disposed on the image plane183.

The first lens110with negative refractive power, comprising an object-side surface111and an image-side surface112, the object-side surface111of the first lens110being convex near the optical axis190and the image-side surface112of the first lens110being concave near the optical axis190, and the first lens110is made of glass material.

The second lens120with negative refractive power, comprising an object-side surface121and an image-side surface122, the object-side surface121of the second lens120being convex near the optical axis190and the image-side surface122of the second lens120being concave near the optical axis190, the object-side surface121and the image-side surface122of the second lens120are aspheric, and the second lens120is made of plastic material.

The third lens130with positive refractive power, comprising an object-side surface131and an image-side surface132, the object-side surface131of the third lens130being convex near the optical axis190and the image-side surface132of the third lens130being convex near the optical axis190, the object-side surface131and the image-side surface132of the third lens130are aspheric, and the third lens130is made of plastic material.

The fourth lens140with positive refractive power, comprising an object-side surface141and an image-side surface142, the object-side surface141of the fourth lens140being convex near the optical axis190and the image-side surface142of the fourth lens140being convex near the optical axis190, the object-side surface141and the image-side surface142of the fourth lens140are aspheric, and the fourth lens140is made of plastic material.

The fifth lens150with negative refractive power, comprising an object-side surface151and an image-side surface152, the object-side surface151of the fifth lens150being concave near the optical axis190and the image-side surface152of the fifth lens150being concave near the optical axis190, the object-side surface151and the image-side surface152of the fifth lens150are aspheric, and the fifth lens150is made of plastic material.

The sixth lens160with positive refractive power, comprising an object-side surface161and an image-side surface162, the object-side surface161of the sixth lens160being convex near the optical axis190and the image-side surface162of the sixth lens160being convex near the optical axis190, and the sixth lens160is made of glass material.

The seventh lens170with negative refractive power, comprising an object-side surface171and an image-side surface172, the object-side surface171of the seventh lens170being convex near the optical axis190and the image-side surface172of the seventh lens170being concave near the optical axis190, the object-side surface171and the image-side surface172of the seventh lens170are aspheric, and the seventh lens170is made of plastic material.

The filter181made of glass is located between the seventh lens170and the image plane183and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The equation for the aspheric surface profiles of the respective lenses of the first embodiment is expressed as follows:

z⁡(h)=ch21+[1-(k+1)⁢c2⁢h2]0.5+∑(Ai)·(hi)wherein:z represents the value of a reference position with respect to a vertex of the surface of a lens and a position with a height h along the optical axis190;c represents a paraxial curvature equal to 1/R (R: a paraxial radius of curvature);h represents a vertical distance from the point on the curve of the aspheric surface to the optical axis190;k represents the conic constant;Ai, . . .: represent the i-order aspheric coefficients.

In the first embodiment of the present optical lens assembly, a focal length of the optical lens assembly is f, a f-number of the optical lens assembly is Fno, the optical lens assembly has a maximum view angle FOV, an entrance pupil diameter of the optical lens assembly is EPD, and following conditions are satisfied: f=2.01 mm; Fno=2.00; FOV=187.85 degrees; and EPD=0.95 mm.

In the first embodiment of the present optical lens assembly, a focal length of the first lens110is f1, a focal length of the sixth lens160is f6, and following condition is satisfied: f1/f6=−2.29.

In the first embodiment of the present optical lens assembly, the focal length of the optical lens assembly is f, the focal length of the first lens110is f1, and following condition is satisfied: f/f1=−0.28.

In the first embodiment of the present optical lens assembly, a focal length of the fifth lens150is f5, a focal length of the seventh lens170is f7, and following condition is satisfied: f5/f7=0.59.

In the first embodiment of the present optical lens assembly, the focal length of the fifth lens150is f5, the focal length of the sixth lens160is f6, the focal length of the seventh lens170is f7, and following condition is satisfied: f7/(f5*f6)=0.54 mm−1.

In the first embodiment of the present optical lens assembly, the focal length of the fifth lens150is f5, a radius of curvature of the image-side surface152of the fifth lens150is R10, a central thickness of the fifth lens150along the optical axis190is CT5, and following condition is satisfied: f5/(R10*CT5)=−3.48 mm−1.

In the first embodiment of the present optical lens assembly, a central thickness of the first lens110along the optical axis190is CT1, a central thickness of the second lens120along the optical axis190is CT2, a radius of curvature of the image-side surface112of the first lens110is R2, a radius of curvature of the image-side surface122of the second lens120is R4, and following condition is satisfied: (CT1+CT2)/(R2*R4)=0.22 mm−1.

In the first embodiment of the present optical lens assembly, a focal length of the third lens130is f3, the focal length of the fifth lens150is f5, the focal length of the seventh lens170is f7, and following condition is satisfied: f3/(f5*f7)=1.31 mm−1.

In the first embodiment of the present optical lens assembly, a focal length of the second lens120is f2, a focal length of the fourth lens140is f4, the focal length of the sixth lens160is f6, and following condition is satisfied: f2/(f4*f6)=−1.21 mm−1.

In the first embodiment of the present optical lens assembly, a radius of curvature of the object-side surface171of the seventh lens170is R13, a radius of curvature of the image-side surface172of the seventh lens170is R14, the focal length of the seventh lens170is f7, and following condition is satisfied: R13/(R14*f7)=−1.90 mm−1.

In the first embodiment of the present optical lens assembly, the focal length of the seventh lens170is f7, a central thickness of the seventh lens170along the optical axis190is CT7, the radius of curvature of the image-side surface172of the seventh lens170is R14, and following condition is satisfied: f7*CT7/R14=−1.37 mm.

In the first embodiment of the present optical lens assembly, the focal length of the fourth lens140is f4, the focal length of the fifth lens150is f5, a radius of curvature of the object-side surface141of the fourth lens140is R7, a radius of curvature of the image-side surface142of the fourth lens140is R8, the radius of curvature of the image-side surface152of the fifth lens150is R10, and following condition is satisfied: (R10*f5)/(R7*R8*f4)=0.43 mm−1.

In the first embodiment of the present optical lens assembly, a radius of curvature of the object-side surface111of the first lens110is R1, the radius of curvature of the image-side surface112of the first lens110is R2, and following condition is satisfied: R2/R1=0.33.

In the first embodiment of the present optical lens assembly, a distance from the object-side surface111of the first lens110to the image plane183along the optical axis190is TL, the radius of curvature of the image-side surface122of the second lens120is R4, half of a diagonal length of an effective pixel area of the image sensor185is IMH, and following condition is satisfied: TL*R4/IMH=7.69 mm.

The detailed optical data of the first embodiment is shown in table 1, and the aspheric surface data is shown in table 2.

TABLE 1Embodiment 1f(focal length) = 2.01 mm, Fno = 2.0, FOV = 187.85 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 110.8020.823glass1.77349.6−7.1523.5411.3253Lens 23.396(ASP)0.590plastic1.54456.0−8.4941.839(ASP)1.2795Lens 323.556(ASP)2.753plastic1.63624.014.706−14.933(ASP)0.1687stopinfinity−0.0228Lens 42.643(ASP)1.103plastic1.54456.02.249−1.938(ASP)0.03610Lens 5−13.081(ASP)0.388plastic1.63624.0−2.57111.899(ASP)0.19812Lens 65.3421.629glass1.72954.73.1213−3.4740.89014Lens 719.944(ASP)0.756plastic1.63624.0−4.36152.412(ASP)0.46716filterinfinity0.210glass1.51764.217infinity0.30018Image planeinfinity—

TABLE 2Aspheric Coefficientssurface34568K:−4.6287E+00−1.0475E+001.1429E+021.4317E+01−9.8409E+00A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−3.5708E−03−3.6519E−03−3.6943E−03−4.1687E−026.7118E−03A6:−3.9805E−053.7466E−031.9096E−045.1585E−021.8092E−02A8:−1.3563E−05−1.4827E−031.9494E−04−3.1515E−02−1.5556E−02A102.7907E−064.7678E−041.9494E−041.4097E−02−1.7530E−03A12−4.8223E−08−5.0216E−05−2.2448E−05−3.7055E−036.8534E−03A14−7.0445E−09−1.7204E−053.5509E−062.5455E−035.0094E−04A16−2.2455E−103.9686E−06−2.6300E−07−3.8611E−04−1.1059E−03surface910111415K:−6.0900E+008.5511E+01−9.5454E+00−1.0849E+03−9.9502E+00A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−3.5605E−02−9.1372E−022.1798E−05−5.9878E−02−2.0340E−02A6:−4.1803E−022.8896E−024.2481E−034.9140E−032.5490E−03A8:3.8691E−02−6.7686E−03−6.6301E−04−3.4628E−04−2.4711E−04A10−8.1102E−033.4699E−03−1.2962E−04−4.2526E−04−9.2626E−07A12−3.3662E−03−1.7549E−044.8303E−052.9889E−053.3331E−07A142.9552E−041.9345E−043.3059E−052.0087E−051.3360E−07A161.2419E−031.1724E−04−9.7862E−06−5.1272E−06−1.5710E−08

The units of the radius of curvature, the thickness and the focal length in table 1 are expressed in mm, the surface numbers0-18represent the surfaces sequentially arranged from the object-side to the image-side along the optical axis, wherein surface0represents a gap between an object and the object-side surface111of the first lens110along the optical axis190, surfaces1,3,5,8,10,12,14,16are thicknesses of the first lens110, the second lens120, the third lens130, the fourth lens140, the fifth lens150, the sixth lens160, the seventh lens170and the filter181along the optical axis190, respectively, surface2represents a gap between the first lens110and the second lens120along the optical axis190, surface4represents a gap between the second lens120and the third lens130along the optical axis190, surface6represents a gap between the third lens130and the stop100along the optical axis190, surface7represents a gap between the stop100and the object-side surface141of the fourth lens140along the optical axis190, the stop100is farther away from the object-side than the object-side surface141of the fourth lens140, so it is expressed as a negative value, surface9represents a gap between the fourth lens140and the fifth lens150along the optical axis190, surface11represents a gap between the fifth lens150and the sixth lens160along the optical axis190, surface13represents a gap between the fifth lens150and the seventh lens170along the optical axis190, surface15represents a gap between the seventh lens170and the filter181along the optical axis190, surface17represents a gap between the filter181and the image plane183along the optical axis190.

In table 2, k represents the conic coefficient of the equation of the aspheric surface profiles, and A2, A4, A6, A8, A10, A12, A14, A16: represent the high-order aspheric coefficients. The tables presented below for each embodiment are the corresponding schematic parameter and field curvature curves, and the definitions of the tables are the same as Table 1 and Table 2 of the first embodiment. Therefore, an explanation in this regard will not be provided again.

Referring toFIGS.2A and2B,FIG.2Ashows an optical lens assembly in accordance with a second embodiment of the present invention, andFIG.2Bshows, in order from left to right, the field curvature curve and the distortion curve of the second embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the second embodiment of the present invention comprises, in order from an object side to an image side along an optical axis290: a first lens210, a second lens220, a third lens230, a stop200, a fourth lens240, a fifth lens250, a sixth lens260, a seventh lens270, a filter281, and an image plane283. The optical lens assembly is provided with an image sensor285. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor285is disposed on the image plane283.

The first lens210with negative refractive power, comprising an object-side surface211and an image-side surface212, the object-side surface211of the first lens210being convex near the optical axis290and the image-side surface212of the first lens210being concave near the optical axis290, and the first lens210is made of glass material.

The second lens220with negative refractive power, comprising an object-side surface221and an image-side surface222, the object-side surface221of the second lens220being convex near the optical axis290and the image-side surface222of the second lens220being concave near the optical axis290, the object-side surface221and the image-side surface222of the second lens220are aspheric, and the second lens220is made of plastic material.

The third lens230with positive refractive power, comprising an object-side surface231and an image-side surface232, the object-side surface231of the third lens230being convex near the optical axis290and the image-side surface232of the third lens230being convex near the optical axis290, the object-side surface231and the image-side surface232of the third lens230are aspheric, and the third lens230is made of plastic material.

The fourth lens240with positive refractive power, comprising an object-side surface241and an image-side surface242, the object-side surface241of the fourth lens240being convex near the optical axis290and the image-side surface242of the fourth lens240being convex near the optical axis290, the object-side surface241and the image-side surface242of the fourth lens240are aspheric, and the fourth lens240is made of plastic material.

The fifth lens250with negative refractive power, comprising an object-side surface251and an image-side surface252, the object-side surface251of the fifth lens250being concave near the optical axis290and the image-side surface252of the fifth lens250being concave near the optical axis290, the object-side surface251and the image-side surface252of the fifth lens250are aspheric, and the fifth lens250is made of plastic material.

The sixth lens260with positive refractive power, comprising an object-side surface261and an image-side surface262, the object-side surface261of the sixth lens260being convex near the optical axis290and the image-side surface262of the sixth lens260being convex near the optical axis290, and the sixth lens260is made of glass material.

The seventh lens270with negative refractive power, comprising an object-side surface271and an image-side surface272, the object-side surface271of the seventh lens270being convex near the optical axis290and the image-side surface272of the seventh lens270being concave near the optical axis290, the object-side surface271and the image-side surface272of the seventh lens270are aspheric, and the seventh lens270is made of plastic material.

The filter281made of glass is located between the seventh lens270and the image plane283and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The detailed optical data of the second embodiment is shown in table 3, and the aspheric surface data is shown in table 4.

TABLE 3Embodiment 2f(focal length) = 1.16 mm, Fno = 2.4, FOV = 179.9 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 19.8881.818glass1.77349.6−8.9523.7500.6613Lens 22.458(ASP)0.599plastic1.54456.0−2.1940.735(ASP)0.8465Lens 3108.603(ASP)1.250plastic1.66120.45.906−4.064(ASP)0.0697stopinfinity−0.0198Lens 41.772(ASP)0.575plastic1.54456.01.319−1.060(ASP)0.04410Lens 5−35.644(ASP)0.360plastic1.66120.4−1.78111.235(ASP)0.23512Lens 67.9831.107glass1.72954.71.9513−1.6360.03514Lens 75.409(ASP)0.480plastic1.66120.4−4.09151.749(ASP)0.25316filterinfinity0.610glass1.51764.217infinity0.14718Image planeinfinity—

TABLE 4Aspheric Coefficientssurface34568K:−3.8345E+00−7.5782E−013.5003E+022.9433E+01−1.8470E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−1.0446E−022.7400E−02−7.6238E−02−2.3055E−016.9957E−02A6:−4.8168E−046.3032E−022.6687E−021.1902E+001.2927E−01A8:−8.6884E−04−1.3087E−011.9208E−01−2.6349E+00−7.6226E−01A104.2689E−042.3784E−011.9208E−014.0790E+004.6282E−01A12−5.1852E−05−2.2797E−01−9.1248E−02−1.0659E+00−2.6007E−01A141.6985E−061.7697E−022.9971E−021.4524E+001.9331E+00A160.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00surface910111415K:−3.0565E+00−9.9904E+01−8.2396E+00−8.4961E+01−6.2486E+00A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−9.8075E−02−3.5040E−011.1503E−02−1.9959E−01−1.5029E−01A6:−5.8603E−011.3787E−013.5331E−02−2.6054E−023.9303E−02A8:1.1496E+00−2.3625E−019.1308E−043.6438E−02−8.6875E−03A10−1.1148E+004.3830E−01−3.4285E−03−1.3240E−022.5260E−04A12−5.2729E−011.5883E−02−1.6462E−02−1.1609E−044.7960E−05A148.6845E−01−4.4920E−014.5765E−03−4.6953E−042.5092E−05A160.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00

In the second embodiment, the equation of the aspheric surface profiles of the aforementioned lenses is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the first embodiment with corresponding values for the second embodiment, so an explanation in this regard will not be provided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 as the following values and satisfy the following conditions:

Embodiment 2f[mm]1.16(CT1 + CT2)/(R2 * R4)0.88EPD[mm]0.47f3/(f5 *f7)0.81Fno2.40f2/(f4 * f6)−0.86FOV[deg.]179.90R13/(R14 * f7)−0.76f1/f6−4.59f7 * CT7/R14−1.12f/f1−0.13(R10 *f5)/(R7 * R 8* f4)0.90f5/f70.44R2/R10.38f7/(f5 * f6)1.18TL*R4/IMH3.81f5/(R10 * CT5)−4.01

Referring toFIGS.3A and3B,FIG.3Ashows an optical lens assembly in accordance with a third embodiment of the present invention, andFIG.3Bshows, in order from left to right, the field curvature curve and the distortion curve of the third embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the third embodiment of the present invention comprises, in order from an object side to an image side along an optical axis390: a first lens310, a second lens320, a third lens330, a stop300, a fourth lens340, a fifth lens350, a sixth lens360, a seventh lens370, a filter381, and an image plane383. The optical lens assembly is provided with an image sensor385. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor385is disposed on the image plane383.

The first lens310with negative refractive power, comprising an object-side surface311and an image-side surface312, the object-side surface311of the first lens310being convex near the optical axis390and the image-side surface312of the first lens310being concave near the optical axis390, and the first lens310is made of glass material.

The second lens320with negative refractive power, comprising an object-side surface321and an image-side surface322, the object-side surface321of the second lens320being convex near the optical axis390and the image-side surface322of the second lens320being concave near the optical axis390, the object-side surface321and the image-side surface322of the second lens320are aspheric, and the second lens320is made of plastic material.

The third lens330with positive refractive power, comprising an object-side surface331and an image-side surface332, the object-side surface331of the third lens330being concave near the optical axis390and the image-side surface332of the third lens330being convex near the optical axis390, the object-side surface331and the image-side surface332of the third lens330are aspheric, and the third lens330is made of plastic material.

The fourth lens340with positive refractive power, comprising an object-side surface341and an image-side surface342, the object-side surface341of the fourth lens340being convex near the optical axis390and the image-side surface342of the fourth lens340being convex near the optical axis390, the object-side surface341and the image-side surface342of the fourth lens340are aspheric, and the fourth lens340is made of plastic material.

The fifth lens350with negative refractive power, comprising an object-side surface351and an image-side surface352, the object-side surface351of the fifth lens350being concave near the optical axis390and the image-side surface352of the fifth lens350being concave near the optical axis390, the object-side surface351and the image-side surface352of the fifth lens350are aspheric, and the fifth lens350is made of plastic material.

The sixth lens360with positive refractive power, comprising an object-side surface361and an image-side surface362, the object-side surface361of the sixth lens360being convex near the optical axis390and the image-side surface362of the sixth lens360being convex near the optical axis390, and the sixth lens360is made of glass material.

The seventh lens370with negative refractive power, comprising an object-side surface371and an image-side surface372, the object-side surface371of the seventh lens370being convex near the optical axis390and the image-side surface372of the seventh lens370being concave near the optical axis390, the object-side surface371and the image-side surface372of the seventh lens370are aspheric, and the seventh lens370is made of plastic material.

The filter381made of glass is located between the seventh lens370and the image plane383and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The detailed optical data of the third embodiment is shown in table 5, and the aspheric surface data is shown in table 6.

TABLE 5Embodiment 3f(focal length) = 1.30 mm, Fno = 2.3, FOV = 180.0 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 17.2701.079glass1.77349.6−9.5023.4230.4063Lens 22.736(ASP)0.485plastic1.54456.0−2.3040.808(ASP)0.7655Lens 3−148.327(ASP)0.930plastic1.66120.46.636−4.301(ASP)0.0447stopinfinity−0.0048Lens 42.034(ASP)0.591plastic1.54456.01.359−1.039(ASP)0.03510Lens 5−51.353(ASP)0.373plastic1.66120.4−1.93111.320(ASP)0.17312Lens 65.3721.105glass1.72954.71.9913−1.8200.15714Lens 75.964(ASP)0.594plastic1.66120.4−3.49151.608(ASP)0.25316filterinfinity0.300glass1.51764.217infinity0.23418Image planeinfinity—

TABLE 6Aspheric Coefficientssurface34568K:−3.2249E+00−6.9428E−01−9.9914E+013.0208E+01−2.4681E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−1.5218E−026.1062E−02−7.9839E−02−2.2977E−014.7306E−02A6:−1.0955E−035.2272E−021.4911E−031.1354E+009.4893E−02A8:−7.9765E−04−1.1393E−012.3922E−01−2.6922E+00−7.7213E−01A10:4.7920E−042.7182E−012.3922E−014.1444E+006.5691E−01A12:−4.8326E−05−2.6718E−01−1.3288E−01−9.4560E−01−1.7899E−01A14:−4.1473E−074.0448E−033.7896E−021.2248E+001.1656E−02A16:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00surface910111415K:−2.8885E+00−1.0028E+02−9.6943E+00−1.3205E+02−7.1311E+00A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−9.6327E−02−3.1486E−011.4157E−02−1.8750E−01−1.0602E−01A6:−5.8811E−011.6480E−013.3176E−02−1.6093E−022.9569E−02A8:1.0656E+00−2.2585E−01−2.6790E−033.6966E−02−6.5776E−03A10:−1.1027E+003.4615E−01−9.9388E−04−1.2425E−026.3227E−04A12:−9.3950E−02−2.1980E−01−8.2421E−034.5387E−04−1.0212E−04A14:4.5787E−030.0000E+000.0000E+000.0000E+000.0000E+00A16:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00

In the third embodiment, the equation of the aspheric surface profiles of the aforementioned lenses is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the first embodiment with corresponding values for the third embodiment, so an explanation in this regard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 as the following values and satisfy the following conditions:

Embodiment 3f[mm]1.30(CT1+CT2)/(R2 * R4)0.57EPD[mm]0.56f3/(f5 * f7)0.99Fno2.30f2/(f4 * f6)−0.86FOV[deg.]180.00R13/(R14 * f7)−1.06f1/f6−4.78f7 * CT7/R14−1.29f/f1−0.14(R10 * f5)/(R7 * R8 * f4)0.89f5/f70.55R2/R10.47f7/(f5 * f6)0.91TL * R4/IMH3.37f5/(R10 * CT5)−3.91

Referring toFIGS.4A and4B,FIG.4Ashows an optical lens assembly in accordance with a fourth embodiment of the present invention, andFIG.4Bshows, in order from left to right, the field curvature curve and the distortion curve of the fourth embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the fourth embodiment of the present invention comprises, in order from an object side to an image side along an optical axis490: a first lens410, a second lens420, a third lens430, a stop400, a fourth lens440, a fifth lens450, a sixth lens460, a seventh lens470, a filter481, and an image plane483. The optical lens assembly is provided with an image sensor485. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor485is disposed on the image plane483.

The first lens410with negative refractive power, comprising an object-side surface411and an image-side surface412, the object-side surface411of the first lens410being convex near the optical axis490and the image-side surface412of the first lens410being concave near the optical axis490, and the first lens410is made of glass material.

The second lens420with negative refractive power, comprising an object-side surface421and an image-side surface422, the object-side surface421of the second lens420being convex near the optical axis490and the image-side surface422of the second lens420being concave near the optical axis490, the object-side surface421and the image-side surface422of the second lens420are aspheric, and the second lens420is made of plastic material.

The third lens430with positive refractive power, comprising an object-side surface431and an image-side surface432, the object-side surface431of the third lens430being convex near the optical axis490and the image-side surface432of the third lens430being convex near the optical axis490, the object-side surface431and the image-side surface432of the third lens430are aspheric, and the third lens430is made of plastic material.

The fourth lens440with positive refractive power, comprising an object-side surface441and an image-side surface442, the object-side surface441of the fourth lens440being convex near the optical axis490and the image-side surface442of the fourth lens440being convex near the optical axis490, the object-side surface441and the image-side surface442of the fourth lens440are aspheric, and the fourth lens440is made of plastic material.

The fifth lens450with negative refractive power, comprising an object-side surface451and an image-side surface452, the object-side surface451of the fifth lens450being concave near the optical axis490and the image-side surface452of the fifth lens450being concave near the optical axis490, the object-side surface451and the image-side surface452of the fifth lens450are aspheric, and the fifth lens450is made of plastic material.

The sixth lens460with positive refractive power, comprising an object-side surface461and an image-side surface462, the object-side surface461of the sixth lens460being convex near the optical axis490and the image-side surface462of the sixth lens460being convex near the optical axis490, and the sixth lens460is made of glass material.

The seventh lens470with negative refractive power, comprising an object-side surface471and an image-side surface472, the object-side surface471of the seventh lens470being convex near the optical axis490and the image-side surface472of the seventh lens470being concave near the optical axis490, the object-side surface471and the image-side surface472of the seventh lens470are aspheric, and the seventh lens470is made of plastic material.

The filter481made of glass is located between the seventh lens470and the image plane483and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The detailed optical data of the fourth embodiment is shown in table 7, and the aspheric surface data is shown in table 8.

TABLE 7Embodiment 4f(focal length) = 1.29 mm, Fno = 2.2, FOV = 180.0 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 18.8931.681glass1.77349.6−7.4523.2130.8133Lens 22.866(ASP)0.579plastic1.54456.0−2.5540.870(ASP)0.8025Lens 3264.203(ASP)1.377plastic1.66120.46.646−4.491(ASP)0.0067stopinfinity0.0298Lens 41.996(ASP)0.680plastic1.54456.01.489−1.189(ASP)0.03510Lens 5−38.386(ASP)0.419plastic1.66120.4−1.83111.267(ASP)0.22512Lens 65.8781.221glass1.72954.72.0713−1.8610.03714Lens 76.173(ASP)0.580plastic1.66120.4−5.16152.127(ASP)0.30016filterinfinity0.610glass1.51764.217infinity0.29718Image planeinfinity—

TABLE 8Aspheric Coefficientssurface34568K:−2.8038E+00−7.5871E−019.1860E+012.8174E+01−2.5502E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−1.7577E−023.8857E−02−4.9816E−02−2.4616E−017.6897E−02A6:−1.0386E−033.5378E−024.4381E−021.0993E+001.3062E−01A8:−6.6971E−04−1.1960E−012.1274E−01−2.6368E+00−7.3246E−01A104.6162E−042.4478E−012.1274E−013.9871E+008.7231E−01A12−5.8790E−05−2.6897E−01−1.4152E−01−2.4698E+003.5436E−01A141.0608E−068.1913E−024.6704E−027.4200E−01−6.0886E−01A163.4519E−086.6656E−040.0000E+000.0000E+000.0000E+00surface910111415K:−3.5029E+00−1.0085E+02−8.2660E+00−1.0010E+02−6.6184E+00A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−2.4318E−02−2.6316E−018.2692E−03−1.3733E−01−1.2764E−01A6:−4.8149E−011.8153E−012.9374E−02−2.2570E−023.4647E−02A8:1.0576E+00−2.1206E−01−1.5177E−032.8467E−02−8.1269E−03A10−1.1071E+003.2129E−01−2.1254E−03−1.1488E−027.5542E−04A129.3421E−02−2.1955E−01−1.1028E−021.8463E−031.4488E−04A146.9721E−019.8994E−026.2378E−03−1.2657E−04−4 4414E−05A160.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00

In the fourth embodiment, the equation of the aspheric surface profiles of the aforementioned lenses is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the first embodiment with corresponding values for the fourth embodiment, so an explanation in this regard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 as the following values and satisfy the following conditions:

Embodiment 4f[mm]1.29(CT1+CT2)/(R2*R4)0.81EPD[mm]0.59f3/(f5*f7)0.70Fno2.20f2/(f4*f6)−0.83FOV[deg.]180.00R13/(R14*f7)−0.56f1/f6−3.60f7*CT7/R14−1.41f/f1−0.17(R10*f5)/(R7*R8*f4)0.66f5/f70.35R2/R10.36f7/(f5*f6)1.36TL*R4/IMH4.68£5/(R10*CT5)−3.46

Referring toFIGS.5A and5B,FIG.5Ashows an optical lens assembly in accordance with a fifth embodiment of the present invention, andFIG.5Bshows, in order from left to right, the field curvature curve and the distortion curve of the fifth embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the fifth embodiment of the present invention comprises, in order from an object side to an image side along an optical axis590: a first lens510, a second lens520, a third lens530, a stop500, a fourth lens540, a fifth lens550, a sixth lens560, a seventh lens570, a filter581, and an image plane583. The optical lens assembly is provided with an image sensor585. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor585is disposed on the image plane583.

The first lens510with negative refractive power, comprising an object-side surface511and an image-side surface512, the object-side surface511of the first lens510being convex near the optical axis590and the image-side surface512of the first lens510being concave near the optical axis590, and the first lens510is made of glass material.

The second lens520with negative refractive power, comprising an object-side surface521and an image-side surface522, the object-side surface521of the second lens520being convex near the optical axis590and the image-side surface522of the second lens520being concave near the optical axis590, the object-side surface521and the image-side surface522of the second lens520are aspheric, and the second lens520is made of plastic material.

The third lens530with positive refractive power, comprising an object-side surface531and an image-side surface532, the object-side surface531of the third lens530being convex near the optical axis590and the image-side surface532of the third lens530being convex near the optical axis590, the object-side surface531and the image-side surface532of the third lens530are aspheric, and the third lens530is made of plastic material.

The fourth lens540with positive refractive power, comprising an object-side surface541and an image-side surface542, the object-side surface541of the fourth lens540being convex near the optical axis590and the image-side surface542of the fourth lens540being convex near the optical axis590, the object-side surface541and the image-side surface542of the fourth lens540are aspheric, and the fourth lens540is made of plastic material.

The fifth lens550with negative refractive power, comprising an object-side surface551and an image-side surface552, the object-side surface551of the fifth lens550being concave near the optical axis590and the image-side surface552of the fifth lens550being concave near the optical axis590, the object-side surface551and the image-side surface552of the fifth lens550are aspheric, and the fifth lens550is made of plastic material.

The sixth lens560with positive refractive power, comprising an object-side surface561and an image-side surface562, the object-side surface561of the sixth lens560being convex near the optical axis590and the image-side surface562of the sixth lens560being convex near the optical axis590, and the sixth lens560is made of glass material.

The seventh lens570with negative refractive power, comprising an object-side surface571and an image-side surface572, the object-side surface571of the seventh lens570being convex near the optical axis590and the image-side surface572of the seventh lens570being concave near the optical axis590, the object-side surface571and the image-side surface572of the seventh lens570are aspheric, and the seventh lens570is made of plastic material.

The filter581made of glass is located between the seventh lens570and the image plane583and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The detailed optical data of the fifth embodiment is shown in table 9, and the aspheric surface data is shown in table 10.

TABLE 9Embodiment 5f(focal length) = 1.12 mm, Fno = 2.2, FOV= 180.0 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 18.4300.800glass1.77349.6−6.6123.0571.7513Lens 22.374(ASP)0.670plastic1.54456.0−2.9640.866(ASP)0.8765Lens 3−211.823(ASP)1.912plastic1.66120.45.666−3.721(ASP)−0.0327stopinfinity0.0678Lens 42.030(ASP)0.762plastic1.54456.01.509−1.198(ASP)0.09510Lens 5−5.779(ASP)0.475plastic1.66120.4−1.45111.198(ASP)0.25712Lens 67.2071.406glass1.72954.72.1513−1.8420.03514Lens 78.867(ASP)0.660plastic1.66120.4−10.53153.802(ASP)0.35316filterinfinity0.610glass1.51764.217infinity0.15718Image planeinfinity—

TABLE 10Aspheric Coefficientssurface34568K:−2.0467E+00−7.6121E−016.9960E+012.5806E+01−2.6822E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−9.5466E−032.4508E−02−2.6649E−02−1.8238E−011.1443E−01A6:−8.8782E−03−4.7982E−02−2.1318E−021.2033E+002.3576E−01A8:−1.4563E−038.2995E−022.3022E−01−3.7301E+00−1.9455E+00A103.0175E−03−3.5488E−012.3022E−018.3491E+007.1431E+00A12−1.0316E−035.4187E−01−3.0935E−01−6.1988E+00−1.5949E+01A141.5604E−04−3.7978E−012.0836E−01−9.2964E+002.0272E+01A16−9.1992E−061.0067E−01−5.2503E−021.8374E+01−1.0372E+01surface910111415K:−3.4951E+003.2378E+01−7.0964E+002.0532E+016.8611E−01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−2.7155E−02−2.4736E−012.4751E−02−1.0607E−01−1.0037E−01A6:−6.9514E−01−2.3504E−01−2.3221E−01−3.4191E−035.9019E−03A8:3.0017E+001.5954E+008.3630E−015.3133E−03−8.3297E−03A10−8.5707E+00−3.9298E+00−1.5411E+00−2.9439E−025.8589E−03A121.5799E+015.6541E+001.6577E+003.1199E−02−1.3295E−03A14−1.6625E+01−4.1596E+00−9.6567E−01−1.4984E−02−3.5045E−05A167.9624E+001.3877E+002.3426E−012.8725E−034.2833E−05

In the fifth embodiment, the equation of the aspheric surface profiles of the aforementioned lenses is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the first embodiment with corresponding values for the fifth embodiment, so an explanation in this regard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10 as the following values and satisfy the following conditions:

Embodiment 5f[mm]1.12(CT1 + CT2)/(R2 * R4)0.56EPD[mm]0.51f3/(f5 * f7)0.37Fno2.20f2/(f4 *f6)−0.92FOV[deg.]180.00R13/(R14 * f7)−0.22f1/f6−3.08f7 * CT7/R14−1.83f/f1−0.17(R10 * f5)/(R7 * R8 * f4)0.47f5/f70.14R2/R10.36f7/(f5*f6)3.39TL * R4/IMH5.23f5/(R10*CT5)−2.54

Referring toFIGS.6A and6B,FIG.6Ashows an optical lens assembly in accordance with a sixth embodiment of the present invention, andFIG.6Bshows, in order from left to right, the field curvature curve and the distortion curve of the sixth embodiment of the present invention, showing the state of the field curvature curve and the distortion curve in both visible and infrared light wavelengths. An optical lens assembly in accordance with the sixth embodiment of the present invention comprises, in order from an object side to an image side along an optical axis690: a first lens610, a second lens620, a third lens630, a stop600, a fourth lens640, a fifth lens650, a sixth lens660, a seventh lens670, a filter681, and an image plane683. The optical lens assembly is provided with an image sensor685. Wherein the optical lens assembly has a total of seven lenses with refractive power, but not limited to this. The image sensor685is disposed on the image plane683.

The first lens610with negative refractive power, comprising an object-side surface611and an image-side surface612, the object-side surface611of the first lens610being convex near the optical axis690and the image-side surface612of the first lens610being concave near the optical axis690, and the first lens610is made of glass material.

The second lens620with negative refractive power, comprising an object-side surface621and an image-side surface622, the object-side surface621of the second lens620being convex near the optical axis690and the image-side surface622of the second lens620being concave near the optical axis690, the object-side surface621and the image-side surface622of the second lens620are aspheric, and the second lens620is made of plastic material.

The third lens630with positive refractive power, comprising an object-side surface631and an image-side surface632, the object-side surface631of the third lens630being convex near the optical axis690and the image-side surface632of the third lens630being convex near the optical axis690, the object-side surface631and the image-side surface632of the third lens630are aspheric, and the third lens630is made of plastic material.

The fourth lens640with positive refractive power, comprising an object-side surface641and an image-side surface642, the object-side surface641of the fourth lens640being convex near the optical axis690and the image-side surface642of the fourth lens640being convex near the optical axis690, the object-side surface641and the image-side surface642of the fourth lens640are aspheric, and the fourth lens640is made of plastic material.

The fifth lens650with negative refractive power, comprising an object-side surface651and an image-side surface652, the object-side surface651of the fifth lens650being concave near the optical axis690and the image-side surface652of the fifth lens650being concave near the optical axis690, the object-side surface651and the image-side surface652of the fifth lens650are aspheric, and the fifth lens650is made of plastic material.

The sixth lens660with positive refractive power, comprising an object-side1osurface661and an image-side surface662, the object-side surface661of the sixth lens660being convex near the optical axis690and the image-side surface662of the sixth lens660being convex near the optical axis690, and the sixth lens660is made of glass material.

The seventh lens670with negative refractive power, comprising an object-side surface671and an image-side surface672, the object-side surface671of the seventh lens670being convex near the optical axis690and the image-side surface672of the seventh lens670being concave near the optical axis690, the object-side surface671and the image-side surface672of the seventh lens670are aspheric, and the seventh lens670is made of plastic material.

The filter681made of glass is located between the seventh lens670and the image plane683and has no influence on the focal length of the optical lens assembly. The present embodiment selects an IR-Cut Filter Removable (ICR), which is a set of automatically switchable filters. The switch of the filter determines whether the image sensor can receive the infrared light wavelength, and the timing of switching the filter depends on the visible light intensity detected by an image sensor of a photographing lens, but not limited to this. A filter that allows the visible light wavelength, the infrared light wavelength or both the visible and infrared light wavelengths to pass may be selected.

The detailed optical data of the sixth embodiment is shown in table 11, and the aspheric surface data is shown in table 12.

TABLE 11Embodiment 6f(focal length) = 0.94 mm, Fno = 2.1, FOV = 180.0 deg.CurvatureIndexAbbe #FocalsurfaceRadiusThickness/gapMaterial(nd)(vd)length0objectinfinityinfinity1Lens 18.5760.750glass1.77349.6−6.8423.1531.9963Lens 27.683(ASP)0.359plastic1.54456.0−2.1040.980(ASP)0.9375Lens 38.259(ASP)1.863plastic1.66120.44.686−4.574(ASP)0.0257stopinfinity0.2518Lens 41.844(ASP)0.834plastic1.54456.01.459−1.173(ASP)0.03310Lens 5−10.325(ASP)0.364plastic1.66120.4−1.48111.105(ASP)0.24912Lens 64.1891.347glass1.72954.71.9913−1.9260.03314Lens 715.518(ASP)0.399plastic1.66120.4−6.60153.396(ASP)0.25016filterinfinity0.610glass1.51764.217infinity0.33318Image planeinfinity—

TABLE 12Aspheric Coefficientssurface34568K:3.2819E+00−6.4544E−013.8113E+012.6083E+01−1.1807E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:7.7668E−035.3903E−03−6.7759E−02−8.2240E−021.5333E−01A6:−1.0167E−022.1833E−022.7501E−051.5444E−01−3.6216E−01A8:6.3026E−03−E3537E−019.1918E−02−3.2833E−018.0127E−01A10:−2.1535E−033.0234E−019.1918E−021.0250E+00−1.4395E+00A12:4.5361E−04−3.6488E−01−7.6011E−02−1.5655E+001.4667E+00A14:−5.5520E−052.3409E−012.3823E−021.0292E+00−7.6487E−01A16:3.1472E−06−6.2780E−022.1942E−052.5909E−02−2.1311E−03surface910111415K:−5.2922E+009.8429E+01−7.8661E+002.4091E+00−3.3776E+01A2:0.0000E+000.0000E+000.0000E+000.0000E+000.0000E+00A4:−2.2344E−02−3.3224E−01−4.9544E−02−2.0663E−01−8.3657E−02A6:−4.6508E−012.4199E−013.0850E−023.3310E−02−5.7718E−02A8:1.1641E+00−3.6833E−01E3271E−01−6.4648E−026.7423E−02A10:−E7775E+009.6067E−01−2.9250E−017.2993E−02−3.2038E−02A12:E3320E+00−E8408E+002.8031E−01−2.6886E−02E1235E−02A14:−4.2831E−01E5408E+00−E3720E−011.3118E−04−2.9522E−03A16:2.4436E−04−3.7384E−012.9390E−02E3147E−033.8274E−04

In the sixth embodiment, the equation of the aspheric surface profiles of the aforementioned lenses is the same as the equation of the first embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the first embodiment with corresponding values for the sixth embodiment, so an explanation in this regard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12 as the following values and satisfy the following conditions:

Embodiment 6f[mm]0.94(CT1+CT2)/(R2 * R4)0.36EPD[mm]0.44f3/(f5 * f7)0.48Fno2.10f2/(f4 * f6)−0.72FOV[deg.]180.00R13/(R14 * f7)−0.69f1/f6−3.44f7 * CT7/R14−0.78f/f1−0.14(R10 * f5)/(R7 * R8 * f4)0.52f5/f70.22R2/R10.37f7/(f5 * f6)2.25TL * R4/IMH5.80f5/(R10 * CT5)−3.68

Referring toFIG.7, which shows a photographing module in accordance with a seventh embodiment of the present invention, the photographing module10is applied to a security camera, but not limited to this. The photographing module10includes a lens barrel11, an optical lens assembly12and an image sensor185. The optical lens assembly12is the optical lens assembly of the above first embodiment, but not limited to this, and can also be the optical lens assemblies of the other embodiments. In addition, the lenses of the optical lens assembly inFIG.7show the unlit peripheral parts, which is slightly different from that of the first embodiment. The optical lens assembly12is disposed in the lens barrel11. The image sensor185is disposed on an image plane183of the optical lens assembly12and is an electronic sensor (such as, CMOS, CCD) with good brightness and low noise to really present the imaging quality of the optical lens assembly.

In the present optical lens assembly, the lenses can be made of plastic or glass. If the lenses are made of plastic, the cost will be effectively reduced. If the lenses are made of glass, there is more freedom in distributing the refractive power of the optical lens assembly. Plastic lenses can have aspheric surfaces, which allow more design parameter freedom (than spherical surfaces), so as to reduce the aberration and the number of the lenses, as well as the total length of the optical lens assembly.

In the present optical lens assembly, the filter is made of glass, but not limited to this, and can be made of other materials with high Abbe numbers.

In the present optical lens assembly, if the object-side or the image-side surface of the lenses with refractive power is convex and the location of the convex surface is not defined, the object-side or the image-side surface of the lenses near the optical axis is convex. If the object-side or the image-side surface of the lenses is concave and the location of the concave surface is not defined, the object-side the image-side surface of the lenses near the optical axis is concave.

The optical lens assembly of the present invention can be used in focusing optical systems and can obtain better image quality. The optical lens assembly of the present invention can also be used in electronic imaging systems, such as, 3D image capturing, digital camera, mobile device, digital flat panel or vehicle camera.

While we have shown and described various embodiments in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.