Title:
OPTICAL SYSTEM AND SPOTLIGHT
Document Type and Number:
WIPO Patent Application WO/2022/135311
Kind Code:
A1
Abstract:
Disclosed are an optical system and a spotlight. The optical system comprises a light-emitting device, a reflector, a first diaphragm and an aspheric lens, wherein the reflector is provided with a reflecting surface, which faces the light-emitting device; the first diaphragm is located on one side of the light-emitting device; and the aspheric lens is located on the side of the first diaphragm away from the light-emitting device. Light emitted by the light-emitting device is reflected and focused by utilizing the reflecting surface of the reflector; and the first diaphragm is utilized to filter large-angle stray light, and the aspheric lens is utilized to collimate and emit light, thereby achieving the effect of small-angle irradiation, ameliorating the phenomenon in the prior art of large-angle stray light being difficult to control, and preventing the light emission efficiency from being reduced. The system has a good light control effect, a simple machining process, and a low production cost.
Inventors:
JING GUIFEN (CN)
DENG SHITAO (CN)
YIN SONG (CN)
DENG SHITAO (CN)
YIN SONG (CN)
Application Number:
PCT/CN2021/139460
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
OPPLE LIGHTING CO LTD (CN)
SUZHOU OPPLE LIGHTING CO LTD (CN)
SUZHOU OPPLE LIGHTING CO LTD (CN)
International Classes:
F21V5/04; F21S8/00; F21V7/04; F21V9/00
Foreign References:
| US4605994A | 1986-08-12 | |||
| US5622418A | 1997-04-22 | |||
| US20050152154A1 | 2005-07-14 | |||
| CN112664866A | 2021-04-16 | |||
| CN109613689A | 2019-04-12 |
Attorney, Agent or Firm:
SUZHOU LINKED INTELLECTUAL PROPERTY AGENCY (CN)
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