Composite optical element

Details Composite optical element Composite optical element

1984-09-05

1987-04-14

Corbin, John K.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

264 17, 350417, 428442, B32B 300, B32B 500, G02B 1318

Patent

active

046573542

ABSTRACT:
A compound type optical element and method for manufacturing thereof are provided, in which two layer are disposed on a substrate of glass, each layer being made of synthetic resin materials of energy radiation hardening type. First layer, disposed on the substrate, is made of a material having a relatively small contraction-hardening distortion, while second layer, disposed on the first layer, is made of a material having a superior durability.

REFERENCES:
patent: 4227950 (1980-10-01), Spycher
patent: 4407880 (1983-10-01), Terao et al.
patent: 4571314 (1986-02-01), Suzuki et al.

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