Title:
OPTICAL DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/161759
Kind Code:
A1
Abstract:
The present invention provides an optical device that is thin and has high light utilization efficiency and little chromatic aberration, and a compact electronic apparatus having the optical device. This thin optical device comprises a first reflective polarizing plate, a lens, a rotator, a retardation plate, and a second reflective polarizing plate. This thin optical device can be formed by utilizing rotation of the polarization plane of linearly polarized light by the rotator and the selective reflection characteristic of circularly polarized light of the second reflective polarizing plate. This optical device has the characteristic of high light utilization efficiency since it does not use a half mirror. The chromatic aberration of an optical system can be reduced by causing the second reflective polarizing plate to have a layered structure.
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Inventors:
HATSUMI RYO (JP)
IKEDA HISAO (JP)
NAKAMURA DAIKI (JP)
HIROSE TAKEYA (JP)
TSUKAMOTO YOSUKE (JP)
IKEDA HISAO (JP)
NAKAMURA DAIKI (JP)
HIROSE TAKEYA (JP)
TSUKAMOTO YOSUKE (JP)
Application Number:
PCT/IB2023/051258
Publication Date:
August 31, 2023
Filing Date:
February 13, 2023
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
G02B5/30; G02B27/02; G02F1/13; G02F1/1335; G02F1/13363; G09F9/30; H05B33/02; H10K50/00; H10K59/00
Foreign References:
| US20210116727A1 | 2021-04-22 | |||
| JP2021532393A | 2021-11-25 | |||
| JP2019204086A | 2019-11-28 | |||
| JP2010033080A | 2010-02-12 | |||
| JP2018500584A | 2018-01-11 | |||
| JP2002148608A | 2002-05-22 | |||
| US20190353906A1 | 2019-11-21 | |||
| US20180045985A1 | 2018-02-15 |
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