Composite lens, manufacturing method for composite lens, and lens module
AssigneeSanyo Electric Co., Ltd.
InventorYouhei Nakagawa
Life of this patent
Estimating the term…
Abstract
A composite lens of the present invention has a resin layer made from a resin to be polymerized by ultraviolet rays provided on at least a part of a surface of a glass base material, the resin layer including a completely cured resin layer and an incompletely cured resin layer. The incompletely cured resin layer may be formed outside a lens effective diameter. Preferably, the incompletely cured resin layer has a polymerization degree of 60 to 90%.
Claims12
A composite lens comprising a resin layer made from a resin to be polymerized by ultraviolet rays and provided on at least a part of a surface of a base material, the resin layer including a completely cured resin layer and an incompletely cured resin layer, the resin layers being formed in different areas on the surface of said base material.
A manufacturing method for a composite lens
- comprising the steps of applying a resin liquid to a base material, pressing a mold against the base material and the resin liquid, and forming a completely cured resin layer and an incompletely cured resin layer in different areas on the surface of said base material by irradiating ultraviolet rays having an uneven intensity distribution and terminating irradiation of the ultraviolet rays before the resin liquid is completely cured.
A lens module comprising a composite lens used as a medium for collecting visible light, the composite lens having a resin layer made from a resin to be polymerized by ultraviolet rays provided on at least a part of a surface of a base material, the resin layer including a completely cured resin layer and an incompletely cured resin layer.
Dependencies are inferred from the claim text.