Method for manufacturing lens for electronic spectacles, lens for electronic spectacles, and electronic spectacles

Abstract

A first recess (102) of a lower substrate (100) is coated with conductive ink to form a first auxiliary electrode layer (104), a lower electrode pattern (105) is formed thereon by vacuum deposition, a second recess (202) of an upper substrate (200) is coated with the conductive ink to form a second auxiliary electrode layer (204), an upper electrode pattern (205) is formed thereon by vacuum deposition, the upper and lower substrates are bonded to each other with an electric element (300) interposed between the lower substrate (100) and the upper substrate (100), and the upper and lower substrates are cut at positions on the overlap portion of the first auxiliary electrode layer (104) and the lower electrode pattern (105) and the overlap portion of the second auxiliary electrode layer (204) and the upper electrode pattern (205) so as to expose the cut surfaces of the substrates.

The invention claimed is: 
     
       1. A method for manufacturing a lens for electronic spectacles,
 in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:   fabricating the lower substrate such that a first recess for lens electrode pads is formed on a surface of the lower substrate, the surface being opposed to the upper substrate,   the first recess is coated with conductive ink to form a transparent first auxiliary electrode layer, and   a transparent lower electrode pattern is formed on an electric element forming part of the lower substrate and the first auxiliary electrode layer by a vacuum deposition method so as to connect the electric element forming part and the first auxiliary electrode layer;   fabricating the upper substrate such that a second recess for the lens electrode pads is formed on a surface of the upper substrate, the surface being opposed to the lower substrate,   the second recess is coated with conductive ink to form a transparent second auxiliary electrode layer, and   a transparent upper electrode pattern is formed by the vacuum deposition method on a part corresponding to the electric element forming part on the upper substrate and the second auxiliary electrode layer so as to connect the part corresponding to the electric element forming part and the second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       2. The method for manufacturing a lens for electronic spectacles according to  claim 1 , further comprising, A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a first recess for lens electrode pads is formed on a surface of the lower substrate, the surface being opposed to the upper substrate; 
 coating the first recess with conductive ink to form a transparent first auxiliary electrode layer; 
 forming a transparent lower electrode pattern on an electric element forming part of the lower substrate and the first auxiliary electrode layer by a vapor deposition method so as to connect the electric element forming part and the first auxiliary electrode layer; 
 fabricating the upper substrate such that a second recess for the lens electrode pads is formed on a surface of the upper substrate, the surface being opposed to the lower substrate; 
 coating the second recess is coated with conductive ink to form a transparent second auxiliary electrode layer; 
 forming a transparent upper electrode pattern by the vapor deposition method on a part corresponding to the electric element forming part on the upper substrate and the second auxiliary electrode layer so as to connect the part corresponding to the electric element forming part and the second auxiliary electrode layer; 
 joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate; and 
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on the first and second recesses to expose cut surfaces of the first and second recesses on a lens end. 
 
     
     
       3. The method for manufacturing a lens for electronic spectacles according to claim  1  2, further comprising: after joining the upper and lower substrates, cutting the upper and lower substrates at positions on the first and second recesses to expose cut surfaces of the first and second recesses on a lens end; and
 forming conductive paste on the exposed first and second recesses to form the lens electrode pad serving as an extraction electrode for the first auxiliary electrode layer and the lower electrode pattern and the lens electrode pad serving as an extraction electrode for the second auxiliary electrode layer and the upper electrode pattern. 
 
     
     
       4. A method for manufacturing a lens for electronic spectacles,
 in fabrication of the lens containing an electric element between a lower substrate and an upper substrate,   the method comprising:   fabricating the lower substrate such that a first recess for lens electrode pads is formed on a surface of the lower substrate, the surface being opposed to the upper substrate,   a lower electrode pattern is formed on an electric element forming part of the lower substrate and the first recess so as to connect the electric element forming part and the first recess, and   the lower electrode pattern of the first recess is coated with conductive ink to form a transparent first auxiliary electrode layer;   fabricating the upper substrate such that a transparent upper electrode pattern is formed by a vacuum deposition method on a part corresponding to the electric element forming part on the upper substrate and a second recess for the lens electrode pads so as to connect the part corresponding to the electric element forming part and the second recess, and   the upper electrode pattern of the second recess is coated with conductive ink to form a transparent second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       5. The method for manufacturing a lens for electronic spectacles according to  claim 4 , further comprising, A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a first recess for lens electrode pads is formed on a surface of the lower substrate, the surface being opposed to the upper substrate; 
 forming a lower electrode pattern on an electric element forming part of the lower substrate and the first recess so as to connect the electric element forming part and the first recess, 
 coating the lower electrode pattern of the first recess with conductive ink to form a transparent first auxiliary electrode layer; 
 fabricating the upper substrate such that a transparent upper electrode pattern is formed by a vapor deposition method on a part corresponding to the electric element forming part on the upper substrate and a second recess for the lens electrode pads so as to connect the part corresponding to the electric element forming part and the second recess; 
 coating the upper electrode pattern of the second recess with conductive ink to form a transparent second auxiliary electrode layer; 
 joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate; and 
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on the first and second recesses to expose cut surfaces of the first and second recesses on a lens end. 
 
     
     
       6. The method for manufacturing a lens for electronic spectacles according to claim  4  5, further comprising: after joining the upper and lower substrates, cutting the upper and lower substrates at positions on the first and second recesses to expose cut surfaces of the first and second recesses on a lens end; and
 forming conductive paste on the exposed first and second recesses to form the lens electrode pad serving as an extraction electrode for the first auxiliary electrode layer and the lower electrode pattern and the lens electrode pad serving as an extraction electrode for the second auxiliary electrode layer and the upper electrode pattern. 
 
     
     
       7. A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a surface of the lower substrate is coated with conductive ink to form a transparent first auxiliary electrode layer for lens electrode pads, the surface being opposed to the upper substrate, and   a transparent lower electrode pattern is formed by a vacuum deposition method on an electric element forming part of the lower substrate and the first auxiliary electrode layer so as to connect the electric element forming part and the first auxiliary electrode layer;   fabricating the upper substrate such that a surface of the upper substrate is coated with the conductive ink to form a transparent second auxiliary electrode layer for the lens electrode pads, the surface being opposed to the lower substrate, and   a transparent upper electrode pattern is formed by the vacuum deposition method on a part corresponding to the electric element forming part on the upper substrate and the second auxiliary electrode layer so as to connect the part corresponding to the electric element forming part and the second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       8. The method for manufacturing a lens for electronic spectacles according to  claim 7 , further comprising, A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a surface of the lower substrate is coated with conductive ink to form a transparent first auxiliary electrode layer for lens electrode pads, the surface being opposed to the upper substrate; 
 forming a transparent lower electrode pattern by a vapor deposition method on an electric element forming part of the lower substrate and the first auxiliary electrode layer so as to connect the electric element forming part and the first auxiliary electrode layer; 
 fabricating the upper substrate such that a surface of the upper substrate is coated with the conductive ink to form a transparent second auxiliary electrode layer for the lens electrode pads, the surface being opposed to the lower substrate; 
 forming a transparent upper electrode pattern by the vapor deposition method on a part corresponding to the electric element forming part on the upper substrate and the second auxiliary electrode layer so as to connect the part corresponding to the electric element forming part and the second auxiliary electrode layer; 
 joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate; and 
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on an overlap portion of the first auxiliary electrode layer and the lower electrode pattern and an overlap portion of the second auxiliary electrode layer and the upper electrode pattern to expose cut surfaces of the substrates. 
 
     
     
       9. The method for manufacturing a lens for electronic spectacles according to claim  7  8, further comprising:
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on an overlap portion of the first auxiliary electrode layer and the lower electrode pattern and an overlap portion of the second auxiliary electrode layer and the upper electrode pattern to expose cut surfaces of the substrates; and 
 forming conductive paste on the overlap portion of the first auxiliary electrode layer and the lower electrode pattern and the overlap portion of the second auxiliary electrode layer and the upper electrode pattern to form the lens electrode pad serving as an extraction electrode for the first auxiliary electrode layer and the lower electrode pattern and the lens electrode pad serving as an extraction electrode for the second auxiliary electrode layer and the upper electrode pattern. 
 
     
     
       10. A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a transparent lower electrode pattern for applying a signal to an electric element forming part of the lower substrate is formed by a vacuum deposition method, and   one end of the lower electrode pattern is coated with conductive ink to form a transparent first auxiliary electrode layer;   fabricating the upper substrate such that a transparent upper electrode pattern is formed by the vacuum deposition method, the upper electrode pattern applying a signal to a part corresponding to the electric element forming part on the upper substrate, and   one end of the upper electrode pattern is coated with conductive ink to form a transparent second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       11. The method for manufacturing a lens for electronic spectacles according to  claim 10 , further comprising, A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a transparent lower electrode pattern for applying a signal to an electric element forming part of the lower substrate is formed by a vapor deposition method; 
 coating one end of the lower electrode pattern with conductive ink to form a transparent first auxiliary electrode layer; 
 fabricating the upper substrate such that a transparent upper electrode pattern is formed by the vapor deposition method, the upper electrode pattern applying a signal to a part corresponding to the electric element forming part on the upper substrate, and 
 coating one end of the upper electrode pattern with conductive ink to form a transparent second auxiliary electrode layer; 
 joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate; and 
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on an overlap portion of the first auxiliary electrode layer and the lower electrode pattern and an overlap portion of the second auxiliary electrode layer and the upper electrode pattern to expose cut surfaces of the substrates. 
 
     
     
       12. The method for manufacturing a lens for electronic spectacles according to claim  10  11, further comprising:
 after joining the upper and lower substrates, cutting the upper and lower substrates at positions on an overlap portion of the first auxiliary electrode layer and the lower electrode pattern and an overlap portion of the second auxiliary electrode layer and the upper electrode pattern to expose cut surfaces of the substrates; and 
 forming conductive paste on the overlap portion of the first auxiliary electrode layer and the lower electrode pattern and the overlap portion of the second auxiliary electrode layer and the upper electrode pattern to form the lens electrode pad serving as an extraction electrode for the first auxiliary electrode layer and the lower electrode pattern and the lens electrode pad serving as an extraction electrode for the second auxiliary electrode layer and the upper electrode pattern. 
 
     
     
       13. A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a transparent lower electrode pattern for applying a signal to an electric element forming part of the lower substrate is formed by a vacuum deposition method,   a lower insulating layer pattern is formed on the electric element forming part and the lower electrode pattern of the lower substrate except for a part to be coated with a first auxiliary electrode layer, and   a hole of the lower insulating layer pattern is coated with conductive ink to form the transparent first auxiliary electrode layer;   fabricating the upper substrate such that a transparent upper electrode pattern is formed by the vacuum deposition method, the upper electrode pattern applying a signal to a part corresponding to the electric element forming part on the upper substrate,   an upper insulating layer pattern is formed on the part corresponding to the electric element forming part on the upper substrate and on the upper electrode pattern except for a part to be coated with a second auxiliary electrode layer, and   a hole of the upper insulating layer pattern is coated with conductive ink to form the transparent second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       14. A method for manufacturing a lens for electronic spectacles, in fabrication of the lens containing an electric element between a lower substrate and an upper substrate, the method comprising:
 fabricating the lower substrate such that a first recess for lens electrode pads is formed on a surface of the lower substrate, the surface being opposed to the upper substrate,   a lower electrode pattern is formed on an electric element forming part of the lower substrate and the first recess so as to connect the electric element forming part and the first recess,   a lower insulating layer pattern is formed on the electric element forming part and the lower electrode pattern of the lower substrate except for a part to be coated with a first auxiliary electrode layer, and   a hole of the lower insulating layer pattern is coated with conductive ink to form the transparent first auxiliary electrode layer;   fabricating the upper substrate such that a transparent upper electrode pattern is formed by a vacuum deposition method on a part corresponding to the electric element forming part on the upper substrate and a second recess for the lens electrode pads so as to connect the part corresponding to the electric element forming part and the second recess,   an upper insulating layer pattern is formed on the upper electrode pattern and the part corresponding to the electric element forming part on the upper substrate, except for a part to be coated with a second auxiliary electrode layer, and   a hole of the upper insulating layer pattern is coated with conductive ink to form the transparent second auxiliary electrode layer; and   joining the upper and lower substrates with the electric element interposed between the electric element forming part of the lower substrate and the upper substrate.   
     
     
       15. A lens for electronic spectacles, the lens containing an electric element between two substrates, wherein comprising:
 a first recess formed on one of the substrates; 
 an electric element forming part formed on said one of the substrates apart from the first recess, with a liquid crystal element serving as the electric element placed on the electric element forming part; and 
 a lens electrode pad on one end of an electrode for applying a voltage to the electric element is, the lens electrode pad being exposed on a lens end, and the lens electrode pad has the electrode formed in a recess on a bonded surface of one of the two substrates, the electrode being formed by stacking an auxiliary electrode layer formed of conductive ink and a lower electrode pattern formed by a vacuum deposition method 
 wherein the electrode is formed by stacking an auxiliary electrode layer formed of conductive ink and an electrode pattern formed by a vapor deposition method in the first recess, 
 wherein a second recess is formed on the other of the substrates at a position not facing the first recess, with a second electrode provided in the second recess, and 
 wherein the electrode pattern extends to the electric element forming part. 
 
     
     
       16. The lens for electronic spectacles according to  claim 15 , wherein the first recess is exposed on the lens end as a curved surface. 
     
     
       17. A lens for electronic spectacles, the lens containing an electric element between two substrates, wherein an electrode for applying a voltage to the electric element has one end exposed on a lens end, and the one end of the electrode is formed by stacking an auxiliary electrode layer formed of conductive ink and a lower electrode pattern formed by a vacuum deposition method. 
     
     
       18. Electronic spectacles in which a lens containing an electric element is set in a spectacle frame,
 the lens having lens electrode pads exposed on a lens end, the lens electrode pads being disposed on one end of an electrode for applying a voltage to the electric element,   the spectacle frame including an electric connector having one end connected to a control unit for controlling the electric element, the electric connector having wiring electrode pads disposed on an other end of the electric connector so as to correspond to positions of the lens electrode pads of the lens,   the electronic spectacles having anisotropic conductive rubber interposed between the wiring electrode pad of the electric connector and the lens electrode pad of the lens.   
     
     
       19. The electronic spectacles according to  claim 18 , further comprising: a rim-side spot facing in a rim of the spectacle frame, the electric connector being placed in the rim-side spot facing; and
 a lens-side spot facing on the lens end of the lens, the anisotropic conductive rubber being placed in the lens-side spot facing.   
     
     
       20. The electronic spectacles according to  claim 18 , wherein the electric connector passes through rim locks of the spectacle frame and is provided in the rim, and
 the wiring electrode pads are set in the rim of the spectacle frame.   
     
     
       21. The lens for electronic spectacles according to claim 15, wherein the electric element forming part is located at a center of the one substrate and the first recess is opened to an edge of the one substrate. 
     
     
       22. The lens for electronic spectacles according to claim 15, wherein the liquid crystal element is disposed at a center of the one substrate. 
     
     
       23. The lens for electronic spectacles according to claim 15, wherein the electrode pattern is formed over the electric element forming part and the first recess. 
     
     
       24. Electronic spectacles having a lens that contains an electric element, comprising:
 a substrate of the lens;   an electric element forming part formed on the substrate and accepting the electric element;   a first recess apart from the accommodation recess on the substrate,   an auxiliary electrode layer formed of conductive material and disposed on the first recess; and   an electrode pattern formed by a vapor deposition method over the electric element and the auxiliary electrode layer,   wherein a second recess is formed on a second substrate of the lens at a position not facing the first recess, with a second electrode provided in the second recess, and   wherein voltage is applied to the electronic element via the auxiliary electrode layer and the electrode pattern.