Invention Grant
- Patent Title: Optical system
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Application No.: US18363188Application Date: 2023-08-01
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Publication No.: US11940647B2Publication Date: 2024-03-26
- Inventor: Yosuke Araki , Wahei Agemizu , Kazumasa Takata , Masaru Fujita
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 21023332 2021.02.17
- Main IPC: F21V8/00
- IPC: F21V8/00

Abstract:
Light control body (6) has first incident surface (7) and first reflection surface (9). First incident surface (7) condenses part of light emitted from light source (1) and emits the light toward incident surface (3) of light guide plate (2). First reflection surface (9) reflects the light that is emitted from light source (1) and does not pass through first incident surface (7), and emits the light toward incident surface (3) of light guide plate (2). First focal position (11) of first incident surface (7) and second focal position (12) of first reflection surface (9) are set at positions that are different from each other and away from the light emission surface of light source (1).
Public/Granted literature
- US20230375770A1 OPTICAL SYSTEM Public/Granted day:2023-11-23
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