Title:
PROJECTION LENS OPTICAL SYSTEM, PROJECTION DEVICE EMPLOYING SAME, AND WEARABLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/224409
Kind Code:
A1
Abstract:
A projection lens optical system, a projection device employing same, and a wearable device are disclosed. The disclosed projection lens optical system is used for a projection device of a wearable device and may comprise first to sixth lenses successively arranged from a light exit point to an image surface, wherein the first to sixth lenses have positive, negative, positive, negative, negative, and positive refractive power or positive, negative, negative, positive, negative, and positive refractive power in that order, and satisfy conditional expression LB/f ≤ 0.5.
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Inventors:
JEONG YOUNGMO (KR)
CHOI MYONGJO (KR)
CHOI JONGCHUL (KR)
CHOI MYONGJO (KR)
CHOI JONGCHUL (KR)
Application Number:
PCT/KR2023/006784
Publication Date:
November 23, 2023
Filing Date:
May 18, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G02B27/01; G02B9/62; G02B13/00; G02B13/16; G03B21/14; H04N9/31
Foreign References:
| KR20170129258A | 2017-11-24 | |||
| KR20190106199A | 2019-09-18 | |||
| KR20200057037A | 2020-05-25 | |||
| KR940013191A | 1994-06-25 | |||
| KR20150004774A | 2015-01-13 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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