Title:
EYEGLASSES AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/024630
Kind Code:
A1
Abstract:
Eyeglasses and a display device. The eyeglasses comprise: a lens assembly having a positive focal power or a negative focal power, wherein the lens assembly comprises at least two lenses including a first lens (10) and a second lens (20) sequentially arranged in a direction toward an image source; a reflective linear polarizer provided at one surface of the first lens close to the image source or provided at one surface of the second lens; a reflective circular polarizer provided at one surface of the first lens, the reflective circular polarizer being positioned at one side of the reflective linear polarizer away from the image source; and a one-quarter wavelength (1/4λ) plate provided between the reflective linear polarizer and the reflective circular polarizer, wherein the first lens has a positive focal power or a negative focal power, the second lens has a negative focal power, an Abbe number of the material of the first lens satisfies Vd1 > 50, and an Abbe number of the material of the second lens satisfies Vd2 < 30. The eyeglasses have a shorter working distance and comprise smaller lenses, thereby realizing a compact lens assembly, and enhancing imaging quality.
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Inventors:
LOU QIQI (CN)
SONG LITONG (CN)
SONG LITONG (CN)
Application Number:
PCT/CN2019/084346
Publication Date:
February 06, 2020
Filing Date:
April 25, 2019
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICS CO LTD (CN)
International Classes:
G02B27/01; G02B13/00; G02B25/00
Foreign References:
| CN108957732A | 2018-12-07 | |||
| CN106526851A | 2017-03-22 | |||
| CN105572894A | 2016-05-11 | |||
| CN108227209A | 2018-06-29 | |||
| CN101887166A | 2010-11-17 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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