Title:
FILTER FOR COLOR VISION TEST, INSTRUMENT FOR COLOR VISION TEST, AND GLASSES
Document Type and Number:
WIPO Patent Application WO/2021/193624
Kind Code:
A1
Abstract:
A filter (40) for a color vision test is provided with a plurality of sheet-shaped wavelength control members (50) for the color vision test, the wavelength control members absorbing light in a predetermined wavelength region. The plurality of wavelength control members (50) are each stacked so as to be at least partially peelable.
More Like This:
| WO/2017/115874 | LAMINATE AND OPTICAL ARTICLE USING SAID LAMINATE |
| JPS59180521 | PROTECTIVE GLASSES |
| WO/1991/012553 | HEADLIGHT GLARE REDUCING DEVICE |
Inventors:
WADA HIDEKI
Application Number:
PCT/JP2021/011970
Publication Date:
September 30, 2021
Filing Date:
March 23, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G02C7/10; A61B3/06; G02B5/20
Foreign References:
| JP2019061232A | 2019-04-18 | |||
| JP2016503196A | 2016-02-01 | |||
| JP2000298249A | 2000-10-24 | |||
| JP3155805U | 2009-12-03 | |||
| CN209928160U | 2020-01-10 | |||
| JP2019124769A | 2019-07-25 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
Download PDF: