Optical component and methods of manufacturing

Abstract

An optical component including microlenses and a transparent substrate oppositely arranged so that a plurality of projections formed on a bottom face of each microlens intersects with a plurality of projections formed on a surface of the transparent substrate, and each microlens and the transparent substrate are adhered to each other by the adhesive, and related methods of manufacturing.

1 . An optical component having an adhesive structure in which a first optical member and a second optical member are adhered to each other,
 wherein the first optical member and the second optical member are oppositely arranged so that a plurality of projections formed on the first optical member intersects with a plurality of projections formed on the second optical member, and the first optical member and the second optical member are adhered to each other by an adhesive.   
     
     
         2 . An optical component according to  claim 1 ,
 wherein, in an adhesive portion, the first optical member and the second optical member are in intermittently contact with each other directly or via the adhesive at top portions of the plurality of projections formed on the first optical member and top portions of the plurality of projections formed on the second optical member.   
     
     
         3 . An optical component according to  claim 2 ,
 wherein the top portions of the plurality of projections formed on the first optical member and the top portions of the plurality of projections formed on the second optical member are in point contact with each other.   
     
     
         4 . An optical component according to  claim 1 ,
 wherein the first optical member and the second optical member each has a serrated portion of which section is formed in a serrated shape, and   the first optical member and the second optical member are oppositely arranged so that the serrated portion of the first optical member and the serrated portion of the second optical member are not engaged with each other, and the first optical member and the second optical member are adhered to each other by the adhesive.   
     
     
         5 . An optical component according to  claim 1 ,
 wherein the first optical member is subjected to position adjustment on the second optical member before being adhered to the second optical member.   
     
     
         6 . A method of manufacturing a fiber collimator array including a fiber array in which a plurality of optical fibers is arrayed and a microlens array in which microlenses are arrayed on a transparent substrate in positions corresponding to the plurality of optical fibers, the method comprising:
 forming a plurality of projections on a bottom face of each microlens and on a surface of the transparent substrate;   oppositely arranging the bottom face of each microlens and the surface of the transparent substrate so that the plurality of projections formed on the bottom face of each microlens intersects with the plurality of projections formed on the surface of the transparent substrate; and   adjusting a position of each microlens on the transparent substrate to arrange each microlens on an optical axis of each optical fiber, to adhere each microlens to the transparent substrate by an adhesive.   
     
     
         7 . A method of manufacturing an optical component having an adhesive structure in which a first optical member and a second optical member are adhered to each other, the method comprising:
 forming a plurality of projections on the first optical member and on the second optical member;   oppositely arranging the first optical member and the second optical member so that the plurality of projections formed on the first optical member intersects with the plurality of projections formed on the second optical member; and   adjusting a position of the first optical member on the second optical member to adhere the first optical member to the second optical member by an adhesive.