Patent Document

This application claims the benefit of U.S. Provisional Application No. 60/221,095, filed Jul. 27, 2000. 

   BACKGROUND OF THE INVENTION 
   This invention relates to head-up displays or wearable eyeglasses with auxiliary electronic display systems which are detachably secured with a system of magnets. There is prior art in the field of head-up displays or wearable eyeglass display systems which are best known for their use in military aircraft. However, mobile head-up displays are just now coming to market for use with wearable computers as well as other applications. One major issue for user acceptance of wearable head-up displays is their bulk and inconvenience to don and doff. Many manufacturers sell arrangements that look like large modified headphones to mount these displays. The pressure on the head from these mounting arrangements may lead to headaches and discomfort. In addition, in an effort to create a one-size fits all device, manufacturers are creating articulated boom arms that allow the display to be positioned in various locations in front of the eye. Unfortunately, these boom mounts often move excessively when the user walks or performs other physical activities. In addition, positioning the display on a boom mount takes considerable time and effort. 
   Manufacturers envision the user being able to glance at the display, move it out of the user&#39;s line of sight when finished, and then return it to the line of sight when needed. Unfortunately, the amount of effort required to readjust the display places an unreasonable onus on the user. Furthermore, there are minimal if any existing incremental adjusting capabilities which may be required for sensitive optical display systems. What is needed is a small, lightweight mounting solution that allows the user to don and doff the display quickly while slipping into place with equal facility. 
   U.S. Pat. No. 6,092,896, issued to Chao, et al. on Jul. 25, 2000, contemplated a prefabricated, eyeglass frame with a bridge including a magnetic member and retaining mechanisms for attaching and supporting auxiliary lenses; however, unlike the solution advanced in the present invention, this method is cumbersome, requires the user to remove the glasses from their face in order to separate the auxiliary lenses and/or frame, does not have the initial ability to be adjusted by the user for incremental fine tuning and did not contemplate use in conjunction with electronic optical display systems incorporated on auxiliary lenses, thus leaving the pertinent field open for development. 
   U.S. Pat. No. 6,139,141, issued to Zider on Oct. 31, 2000, contemplated prefabricated, permanently affixed or imbedded magnetic mounts comprised of male and female fitted parts on a combination of one or all of the eyeglass bridge, temples and frames in an effort to minimize slippage and provide structural support which it claimed had not been successfully achieved in the past; however, unlike the solution advanced in the present invention this method is cumbersome, does not have the initial ability to be adjusted by the user for incremental fine tuning and did not contemplate use in conjunction with electronic optical display systems incorporated on auxiliary lenses, thus leaving the pertinent field open for development. 
   U.S. Pat. No. 6,164,774, issued to Cate on Dec. 26, 2000, also contemplated magnetically attached auxiliary lenses in combination with bridge or temple mechanical support which could be removed easily while minimizing slippage; however, unlike the solution advanced in the present invention this method is prefabricated, does not have the initial ability to be adjusted by the user for incremental fine tuning and did not contemplate use in conjunction with electronic optical display systems incorporated on auxiliary lenses, thus leaving the pertinent field open for development. 
   U.S. Pat. No. 6,204,974, issued to Spitzer on Mar. 20, 2001, introduced a head-mountable image display system similar to eyeglasses capable of providing an image to a user&#39;s eye separate from ambient light and although significantly more compact than relevant art in the field as discussed in the first paragraph above, maintains use of a head frame comprised of a support boom, head band, eyepiece and related input/output components which reduce the aesthetic and minimalistic accomplishments that the present invention achieves by introducing the display system incorporated upon removable auxiliary lenses, thus leaving the pertinent field open for development. 
   U.S. Pat. No. 6,231,179, issued to Lee on May 15, 2001, presents another means of attaching clip-on sunshades to spectacles via magnets and hinge mounting; however, unlike the solution advanced in the present invention this method is prefabricated, does not have the initial ability to be adjusted by the user for incremental fine tuning and did not contemplate use in conjunction with electronic optical display systems incorporated on auxiliary lenses, thus leaving the pertinent field open for development. 
   SUMMARY OF THE INVENTION 
   The present invention resolves the need for an attachable wearable display system which had not been contemplated in the prior relevant art in the form of auxiliary lenses housing electronic optical displays which can be attached to underlying eyeglass frames with removable magnetic mounts positioned to support the auxiliary lenses without slippage. The magnetic mounts can be arranged in a complimentary or dual pattern of positive and negative poles which, when facing off properly, essentially “lock in” or default to the optimal pitch, roll and yaw, as initially calibrated by the individual as the ideal arrangement. This mounting solution should be customizable on a person by person basis and may be adjusted in as many variations as there are lens shapes and frames. In one embodiment of the invention, if a certain angle or pitch is required by the user who may have differing vision requirements in each eye, additional magnets can be inserted to modify the positioning of the lenses. Once the user determines that the display has been adjusted appropriately to their physiognomy, if desired, glue can be used to make the complimentary magnetic arrangements on both the display and eyeglasses frame permanent. Thus, the user can adjust the display once during an initial fitting and will not need to again during everyday use. This advantage significantly reduces the perceived inconvenience of using a heads-up display. Furthermore, the “lock-in” effect achieved by the alternate or sequential arrangement of magnets to face off against magnets with opposite poles removes the need for heavier, more complicated clip-on designs that may not work with every user&#39;s eyeglasses. 
   In addition to the adjusting capabilities of these paired magnetic mounts, the magnets will also serve to activate and deactivate the on/off magnetic switch in the battery-cell-powered display devices which can be mounted on the auxiliary lenses with optional components imbedded within the frames of the underlying eyeglasses. When the user don&#39;s the auxiliary lenses, the magnetic mounts will activate the magnetic switch and light the display; when the user doff&#39;s the lenses, the magnetic mounts will prompt the magnetic switch to deactivate the display—neither activity requiring the user to otherwise interface with the power source of the display. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1   a  is a front view of eyeglasses and lenses comprising one embodiment of the present invention 
       FIG. 1   b  is a front view of eyeglasses and lenses comprising one embodiment of the present invention 
       FIG. 2  is a perspective view of eyeglasses and lenses comprising one embodiment of the present invention 
       FIG. 3  is a perspective view of the lenses attached to the eyeglasses 
       FIG. 4  is a perspective view of the lenses attached to each other 
       FIG. 5  is a front view of the lenses attached to each other partially inserted into a case for storage 
       FIG. 6  is a front view of eyeglasses and lenses comprising one embodiment of the present invention 
       FIG. 7  is a front view of eyeglasses and lenses comprising one embodiment of the present invention 
       FIGS. 8   a – 8   c  is a cross section of the eyeglasses and lenses featuring magnet placement comprising one embodiment of the present invention 
       FIGS. 9   a – 9   c  is a cross section of the display orientation comprising one embodiment of the present invention with an optical, heads up display 
   

   DETAILED DESCRIPTION OF THE INVENTION 
     FIG. 1   a  shows the front view of a pair of eyeglasses  10  and a pair of auxiliary lenses  20  in a first embodiment  1   a  of the present invention. In order to better illustrate the present invention, many components are not shown in the figure. 
   The eyeglasses  10  include a frame  30  which has affixed to it a plurality of magnets  40 . Said magnets are opposite in polarity from a matched plurality of opposing magnets  50  on auxilary lenses  20 . When magnets  50  come within range of magnets  40 , the auxilary lenses  20  become attached to frame  30 . 
   In one embodiment of the invention, the polarities of magnets  40  and magnets  50  may be arranged so that auxilary lenses  20  may be affixed to frame  30  in only one orientation. 
     FIG. 1   b  shows the front view of a pair of eyeglasses  10  and a pair of auxiliary lenses  20   a  and  20   b  in a second embodiment  1   b  of the present invention. In order to better illustrate the present invention, many components are not enumerated in  FIG. 1   a  and  1   b.    
   The eyeglasses  10  include a frame  30  which has affixed to it a plurality of magnets  40 . Said magnets are opposite in polarity from a matched plurality of opposing magnets  50  on auxilary lenses  20   a  and  20   b . When magnets  50  come within range of magnets  40 , the auxilary lenses  20   a  and  20   b  become attached to frame  30 . 
   In one embodiment of the invention, the polarities of magnets  40  and magnets  50  may be arranged so that auxilary lenses  20   a  and  20   b  may be affixed to frame  30  in only one orientation. 
   Attached to or embedded into a temple  60   b  is a display unit  160 . Mounted on auxilary lens  20   b  is a display component  170  and a lens  180 . In one embodiment of the invention, display unit  160  is a LCD panel with a backlight and display component  170  is a mirror. In this embodiment, when auxilary lens  20   b  is affixed to frame  30 , the image projected by said display unit is reflected by said mirror through lens  180 . The reflection of said image travels through said auxilary lens  20   b  along path  200 . An optical element  190 , in this embodiment a one-way mirror or the like and, if necessary, a lens, reflects said image into the eye of the user. If optical unit  190  reduces the amount of outside light entering the eye of the user, lenses  20   a  and  20   b  may be tinted to present a uniform appearance to the viewer. 
   In another embodiment of the invention, display unit  160  is an electrical circuit and display component  170  is a LCD panel with backlight. When auxilary lens  20   b  is attached to frame  30  an electrical connection is completed by the contact of display unit  160  and display component  170  and display component  170  is activated. Said display component projects an image along path  200 . Said image is reflected into the eye of the user by optical element  190 , in this embodiment a one-way mirror or the like and, if necessary, a lens. If optical unit  190  reduces the amount of outside light entering the eye of the user, lenses  20  may be tinted to present a uniform appearance to the viewer. 
   In another embodiment of the invention, optical unit  190  is a display and, if necessary, a lens. Display unit  160  is an electrical circuit and display component  170  is an electrical circuit that couples with  160 . Electrical signals travel to  190  along path  200 , which in this embodiment is of conductive material. 
   This first embodiment is not dependent on having display unit  160  affixed to or embedded in the left temple  60   b  of frame  30  and components  170 ,  180  and  190  affixed to auxilary lens  20   b . Alternatively, display unit  160  may be attached to the right temple  60   a  and components  170 ,  180  and  190  may be affixed to auxilary lens  20   a.    
     FIG. 2  shows a perspective view of embodiment  1   b . Shown with a dotted line is a cable  165  embedded in the temple of said glasses, connecting display unit  160  to some display driving device. 
     FIG. 3  shows a perspective view of eyeglasses  1   b  with auxilary lenses  20   a  and  20   b  affixed by means of magnets  40  and magnets  50 . 
     FIG. 4  shows a perspective view of auxilary lenses  20   a  and  20   b  affixed to each other for 1 storage by means of magnets  50 . 
     FIG. 5  shows said auxilary lenses affixed to each other being inserted into a storage case  300  for purposes of protection from scratches. Storage case  300  may be of rigid or pliable material. 
     FIG. 6  shows the front view of a pair of eyeglasses  10  and a pair of auxilary lenses  20   a  and  20   b  in a third embodiment 2 of the present invention. In order to better illustrate the present invention, many components are not shown in the figure. 
   The eyeglasses  10  include a frame  30  which as affixed to it a plurality of magnets  40 . Said magnets are opposite in polarity from a matched plurality of opposing magnets  50  on auxilary lenses  20   a  and  20   b . When magnets  50  come within range of magnets  40 , the auxilary lenses  20   a  and  20   b  become attached to frame  30 . 
   In one embodiment of the invention, the polarities of magnets  40  and magnets  50  may be arranged so that auxilary lenses  20   a  and  20   b  may be affixed to frame  30  in only one orientation. 
   Attached to a bridge  60  is a display unit  160 . Shown with a dotted line is a cable  165  embedded in the frame of the glasses and exiting via the temple, as shown in  FIG. 2 . Said cable connects display unit  160  to some display driving device. Mounted on auxilary lens  20   a  is a display component  170   a  and a lens  180   a . In one embodiment of the invention, display unit  160  is a LCD panel with a backlight and display component  170   a  is a mirror. In this embodiment, when auxilary lens  20   a  is affixed to frame  30 , the image projected by said display unit is reflected by said mirror through lens  180   a . The reflection of said image travels through said auxilary lens  20   a  along path  200   a . An optical element  190   a , in this embodiment a one-way mirror or the like and, if necessary, a 190 lens, reflects said image into the right eye of the user. If optical units  190   a  or  190   b  reduce the amount of outside light entering the eye of the user, lenses  20   a  and  20   b  may be tinted to present a uniform appearance to the viewer. 
   In another embodiment of the invention, display unit  160  is an electrical circuit and display component  170   b  is a LCD panel with backlight. When auxilary lens  20   a  is attached to frame  30  an electrical connection is completed between display component  170   a  and display unit  160  and display component  170  is activated. Said display component is projects an image along path  200   a . Said image is reflected into the eye of the user by optical element  190   a , in this embodiment a one-way mirror or the like and, if necessary, an lens. 
   In another embodiment of the invention, optical unit  190   a  and  190   b  are displays and, if necessary, lenses. Display unit  160  is an electrical circuit and display components  170   a  and  170   b  are electrical circuits that couple with  160 . Electrical signals travel to  190   a  and  190   b  along paths  200   a  and  200   b , respectively, which in this embodiment are of conductive material. 
   In this embodiment, if desired by the user, components  20   a ,  170   a ,  180   a  and  190   a  may be substituted for components  20   b ,  170   b ,  180   b  and  190   b  to project said image into the user&#39;s right eye. 
     FIG. 7  shows the front view of a pair of eyeglasses  10  and a pair of auxilary lenses  20  in a fourth embodiment of the present invention. In order to better illustrate the present invention, many components are not shown in the figure. 
   The eyeglasses  10  include a frame  30  which as affixed to it a plurality of magnets  40 . Said magnets are opposite in polarity from a matched plurality of opposing magnets  50  on auxilary lenses  20 . When magnets  50  come within range of magnets  40 , the auxilary lenses  20  become attached to frame  30 . 
   Further, our system allows head-up displays to be mounted to the user&#39;s eyeglasses magnetically. This requires a relatively small amount of modification to the user&#39;s eyeglasses—usually the attachment of several small magnets.  FIGS. 8   a, b  and  c  and  9   a, b  and  c  represent a possible configuration of this embodiment of the invention. By arranging the magnets  410 ,  420 ,  430  and  440  on the temple  400  to correspond with magnets  450 ,  460 ,  470  and  480  respectively on the heads-up display  490  and aligning their poles (“N” being negative or north and “S” being positive or south, and when “N” is placed near “S” the magnets are attracted; whereas when “N1” is faced by “N2” or “S1” to “S2” the magnets repel) carefully both on the eyeglasses and the display  490 , the display  490  is drawn to a preferred position and repelled from undesirable positions. Thus, the user only needs to get the display  490  in approximately the right place before it “snaps” into place. While the magnets  410 ,  420 ,  430 ,  440 ,  450 ,  460 ,  470  and  480  hold the display  490  firmly in place during physical activity, a simple tug will detach the display  490 . 
   For example, say we have a set of 3 small round magnets of approximately 1–3 mm dia. We want to create a line of them both on the display and on the eyeglasses to create a secure mount. By placing them with their poles aligned in this manner 
   
     
               
       
           
           
       
    
   
   The magnets attract to each other in the line, making them easier to glue in place. More importantly, however, the magnets will repel a similar line of magnets mounted on the display if they are not aligned properly with the magnets mounted on the eyeglasses. For example, 
   
     
               
       
           
           
       
    
   
   This principle can be used in multiple dimensions so that the display  490  “locks” into place on the users eyeglasses. A similar configuration allows the display to be locked into place to store the display on shoulder bag strap, vest pocket, or carrying case when the display is not being used. 
   The position and orientation of a head-up display  490  in relation to the user&#39;s eye is critical in allowing the user to see all of the display. The system described above may be used to help align the display correctly. By stacking small thin magnets as represented in  FIG. 9 , the angle and position of the display may be adjusted until the user has a comfortable viewing position. For example, an additional magnet added to the system of 6 shown above may be used to tilt the display relative to the eyeglasses. 
   
     
               
       
           
           
       
    
   
   In one embodiment of the invention, the polarities of magnets  40  and magnets  50  in  FIGS. 1   a  and  b  may be arranged so that auxilary lenses  20  may be affixed to frame  30  in only one orientation. 
   
     
               
       
           
           
       
    
   
   In another embodiment of the invention, a display unit  160  may be attached to a bridge  60 . Shown with a dotted line is a cable  165  embedded in the frame of the glasses and exiting via the temple, as shown in  FIG. 2 . Mounted on auxilary lenses  20  is a display component  170 , and  180   a  and  180   b  are lenses combined with LCD shutters. In one embodiment of the invention, display unit  160  is a LCD panel with a backlight and display component  170  is an image-splitting component. In this embodiment, when auxilary lenses  20  are affixed to frame  30 , the image projected by said display unit is split and reflected by component  170  through lenses  180   a  and  180   b . Said image travels through said auxilary lenses  20  along paths  200   a  and  200   b . Optical elements  190   a  and  190   b , in this embodiment each being a one-way mirror or the like and, if necessary, a lens, reflect said image into the eyes of the user. If optical units  190   a  or  190   b  reduce the amount of outside light entering the eye of the user, lenses  20  may be tinted to present a uniform appearance to the viewer. For a 3D-effect, the LCD shutter portions of components  180   a  and  180   b  may be triggered on alternate frames of a video stream displayed by display unit  160 . 
   In another embodiment of the invention, optical units  190   a  and  190   b  are displays and, if necessary, lenses. Display unit  160  is an electrical circuit and display component  170  is an electrical circuit that couples with  160 . Electrical signals travel to  190   a  and  190   b  along paths  200   a  and  200   b , respectively, which in this embodiment are of conductive material. The magnets  40  and magnets  50  when paired appropriately activate the display via turning the magnetic switch imbedded in the display&#39;s cell-battery on and when separated, deactivate the display by turning the magnetic switch off.

Technology Category: 3