Title:
OPTICAL ELEMENT, OPTICAL SYSTEM AND OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/036177
Kind Code:
A1
Abstract:
The present invention provides an optical element which uses a glass base material and a resin, and which is recued in warping due to temperature changes. An optical element (10) according to one embodiment of the present invention comprises a glass base material (11), an optical function part (12) which is formed of a resin, and a bonding part (13) which bonds the glass base material (11) and the optical function part (12) to each other. This optical element (10) is configured such that: the bonding part (13) has a glass transition point of 85°C or less; or alternatively, the bonding part (13) has a Young's modulus of less than 100 MPa.
Inventors:
MIYASAKA KOJI (JP)
UEMURA JIN (JP)
YOSHIDA GOUSUKE (JP)
TAKAYAMA KOSUKE (JP)
UEMURA JIN (JP)
YOSHIDA GOUSUKE (JP)
TAKAYAMA KOSUKE (JP)
Application Number:
PCT/JP2019/031838
Publication Date:
February 20, 2020
Filing Date:
August 13, 2019
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
G02B3/00
Foreign References:
| JPH02282701A | 1990-11-20 | |||
| JPS6450013A | 1989-02-27 | |||
| JP2014202904A | 2014-10-27 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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