OPTICAL SYSTEM, CAMERA MODULE, AND ELECTRONIC DEVICE

WIPO Patent Application WO/2021/218647

A1

An optical system (10), a camera module (100), and an electronic device (1000). The optical system (10) comprises: a light source (12) which emits a light beam (122) with a wavelength of 1300-1600 nm; a converging member (14) provided on one side of the light source (12) to converge the light beam (122) emitted by the light source (12); and a light homogenization member (16) provided on one side of the converging member (14) away from the light source (12) to uniformly diffuse the converged light beam to an illuminated object. According to the camera module (100), a light beam with a wavelength of 1300-1600 nm emitted by the light source (12) sequentially passes through the converging member (14) for convergence and the light homogenization member (16), and is then uniformly diffused to the illuminated object, such that the problem that long-term illumination with a light beam with a wavelength of 940 nm is unfavorable for human vision is solved, and the light spot reaching the illuminated object has a clear contour, which achieves a good illumination effect and is safer for human eyes.

FENG KUNLIANG (CN)
HUANG HUAIYI (CN)
LEE TSUNGCHENG (CN)
WU MUYUAN (CN)

PCT/CN2021/087407

November 04, 2021

April 15, 2021

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JIANGXI OUMAISI MICROELECTRONICS CO LTD (CN)

G03B15/02; G02B19/00; G02B27/09

CN211826851U	2020-10-30
CN212301894U	2021-01-05
CN207133203U	2018-03-23
CN108680929A	2018-10-19
US20190386464A1	2019-12-19
CN111033301A	2020-04-17
CN103988125A	2014-08-13
CN109958966A	2019-07-02

SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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