Title:
光学シートおよび光学部品
Document Type and Number:
Japanese Patent JP6539880
Kind Code:
B2
Abstract:
An optical sheet of the present invention is an optical sheet that has flexibility and is used in a curved state of being curved in one direction, and includes a polarized layer 12 that polarizes incident light and a specific wavelength absorption layer provided on a curved concave side from the polarized layer 12 and containing a resin material and a light absorbing agent that absorbs light in a specific wavelength range out of light in a wavelength range of 350 nm to 740 nm. In addition, the resin material is preferably a polycarbonate having a viscosity average molecular weight Mv of 20,000 to 30,000.
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Inventors:
Takuya Oyama
Tetsuya Ishikawa
Tetsuya Ishikawa
Application Number:
JP2017192233A
Publication Date:
July 10, 2019
Filing Date:
September 29, 2017
Export Citation:
Assignee:
Sumitomo Bakelite Co., Ltd.
International Classes:
B32B7/023; G02C7/10; B32B27/18; B32B27/36; G02B5/22; G02B5/30; G02C9/00
Domestic Patent References:
| JP2007093927A | ||||
| JP2003519398A | ||||
| JP2017056685A | ||||
| JP2016104839A | ||||
| JP2016053724A | ||||
| JP11199683A | ||||
| JP2003149605A | ||||
| JP2012226078A | ||||
| JP2014197163A | ||||
| JP2005037590A |
Foreign References:
| WO2017110598A1 | ||||
| WO2011049108A1 | ||||
| WO2014073021A1 | ||||
| WO2017073220A1 | ||||
| WO2011149030A1 |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi