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Patent Searching and Data


Title:
SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2016/181932
Kind Code:
A1
Abstract:
Provided is a spectacle lens (1) comprising one multilayer film (3a, 3b) on each surface of a plastic lens base material (2), wherein by setting an average reflection rate in at least the 530-570 nm wavelength range to 2.5-5.5% in at least one of the multilayer films (3a, 3b) disposed on a surface of the plastic lens base material, it is possible to attain, in dim environments, an improvement in vividness and brightness in visibility of objects, particularly those that are red in color, as well as an improvement in visibility of the white in white computer screens and the like, and the lens is thereby suitable for the eyes of elderly people.

Inventors:
MIYAMOTO So (LTD. 10-8 Ryogoku 2-chome, Sumida-k, Tokyo 26, 〒1300026, JP)
Application Number:
JP2016/063738
Publication Date:
November 17, 2016
Filing Date:
May 09, 2016
Export Citation:
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Assignee:
NIKON-ESSILOR CO.,LTD. (10-8, Ryogoku 2-chome Sumida-k, Tokyo 26, 〒1300026, JP)
International Classes:
G02C7/10; G02B1/115; G02B5/28
Domestic Patent References:
WO2014208412A12014-12-31
WO2015072336A12015-05-21
Foreign References:
JP2003248202A2003-09-05
JP2014163950A2014-09-08
Other References:
See also references of EP 3296800A4
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Yusen Iwamoto-cho Bldg. 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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