Title:
OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/213717
Kind Code:
A1
Abstract:
In an optical material according to the present disclosure, the transmittance curve measured with a thickness of 2 mm satisfies the characteristics in (1) below, and the luminous transmittance satisfies the characteristic in (2). (1) Maximum transmittance at a wavelength of 410 nm to 450 nm is at least equal to 20% and at most equal to 65%. (2) Luminous transmittance is at least equal to 70% and at most equal to 85%.
Inventors:
MATSUI YUSUKE (JP)
ITO SHINSUKE (JP)
ODA HIROFUMI (JP)
ITO SHINSUKE (JP)
ODA HIROFUMI (JP)
Application Number:
PCT/JP2020/016890
Publication Date:
October 22, 2020
Filing Date:
April 17, 2020
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
ITOH OPTICAL IND (JP)
ITOH OPTICAL IND (JP)
International Classes:
G02C7/10; C08G18/06; C08G18/38; G02B5/22
Domestic Patent References:
| WO2014011581A2 | 2014-01-16 | |||
| WO2011055540A1 | 2011-05-12 | |||
| WO2016125736A1 | 2016-08-11 |
Foreign References:
| JP2012123236A | 2012-06-28 | |||
| JP2012058643A | 2012-03-22 | |||
| JP2003084242A | 2003-03-19 | |||
| JPH07306387A | 1995-11-21 | |||
| CN102830506A | 2012-12-19 | |||
| JP2018087868A | 2018-06-07 | |||
| TWI633201B | 2018-08-21 | |||
| JP2010535538A | 2010-11-25 | |||
| JP2019079856A | 2019-05-23 |
Other References:
See also references of EP 3958047A4
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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