Title:
光学部材、発光装置、表示装置および照明装置
Document Type and Number:
Japanese Patent JP7419066
Kind Code:
B2
Abstract:
There is provided an optical member that achieves a desired light distribution characteristic while having a simple configuration. The optical member includes a first transparent optical sheet and a second transparent optical sheet that are superimposed on each other in a first axial direction. The first transparent optical sheet includes a structure in which a first region and a second region are alternately disposed in a second axial direction. The first region outputs first outgoing light that is generated by refracting first incoming light to a first direction along the second axial direction, and the second region outputs second outgoing light that is generated by refracting second incoming light to a second direction opposite to the first direction. The second transparent optical sheet includes a structure in which a third region and a fourth region are alternately disposed in a third axial direction. The third region outputs third outgoing light that is generated by refracting third incoming light to a third direction along the third axial direction, and the fourth region outputs fourth outgoing light that is generated by refracting fourth incoming light being to a fourth direction opposite to the third direction. An angle formed by the third axial direction with respect to the second axial direction is equal to or greater than 0° and less than 45°.
Inventors:
Norimasa Furukawa
Hiroki Asakawa
Hiroki Asakawa
Application Number:
JP2019521976A
Publication Date:
January 22, 2024
Filing Date:
March 29, 2018
Export Citation:
Assignee:
Saturn Licensing LLC
International Classes:
G02B5/02; F21S2/00; F21V5/00; F21V5/02
Domestic Patent References:
| JP201768248A | ||||
| JP200469879A |
Foreign References:
| WO2017057394A1 | ||||
| WO2014157461A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tsubasa International Patent Office