Patent ID: 8077392
Filing Date: 2011-12-13
Classification: B29D,G02B,G11B

Abstract:
1. A composite optical element, comprising: a first optical component having a first optical functional surface; a second optical component coupled to the first optical component at the first optical functional surface and having a second optical functional surface at a side opposite to a first coupling surface of the second optical component at which the second optical component is coupled to the first optical component; and a third optical component coupled to the second optical component at the second optical functional surface and having a third optical functional surface at a side opposite to a second coupling surface of the third optical component at which the third optical component is coupled to the second optical component, wherein the first, second and third optical functional surfaces partially have first, second and third uneven regions, respectively, the first optical component is made of first glass, the second and third optical components are made of first and second resins, respectively, and the first resin has a softening temperature lower than a glass transition temperature of the first glass and higher than a softening temperature of the second resin.