Title:
光学システム、照明システム、表示システム及び移動体
Document Type and Number:
Japanese Patent JP7390547
Kind Code:
B2
Abstract:
To provide an optical system, an illuminating system, a display system, and a moving body that can improve extraction efficiency of light.SOLUTION: A light guide member 1 comprises an incident surface 10 on which light is incident, and a first surface 11 and a second surface 12 opposed to each other. In the light guide member 1, the second surface 12 is an emitting surface for the light. A prism 3 is provided in the first surface 11, and reflects the light passing through the inside of the light guide member 1, toward the second surface 12. The light guide member 1 includes a direct light path L1 for allowing the light incident from the incident surface 10 to be directly reflected by the prism 3 and emitted from the second surface 12. At least one of the first surface 11 and the second surface 12 comprises a light distribution part for controlling light distribution of the light extracted from the second surface 12.SELECTED DRAWING: Figure 1
Inventors:
Peace of water
Kazumasa Takada
Masaru Fujita
Kazumasa Takada
Masaru Fujita
Application Number:
JP2019146733A
Publication Date:
December 04, 2023
Filing Date:
August 08, 2019
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
F21S2/00; B60K35/00; G02B6/00; G02B27/01; G02F1/13357
Domestic Patent References:
| JP2017188298A | ||||
| JP62278505A | ||||
| JP1209479A |
Foreign References:
| CN103542332A | ||||
| CN103375732A | ||||
| WO2017154993A1 |
Attorney, Agent or Firm:
Hokuto Patent Attorneys Office