Title:
OPTICAL LENS MODULE AND VIRTUAL REALITY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/021510
Kind Code:
A1
Abstract:
An optical lens module and a virtual reality device. The optical lens module comprises: a display image source (IMA) used for emitting circularly polarized light propagating along a first light propagation direction; a first lens (L1) having a light incident surface that is a convex surface or a plane and an emergent surface that is a convex surface, wherein the circularly polarized light is propagated to an incident surface and an emergent surface of a second lens (L2) by means of the light incident surface and the emergent surface of the first lens (L1); the second lens (L2) having a light incident surface that is a convex surface and an emergent surface that is a convex surface; and a third lens (L3) having a light incident surface that is a concave surface and an emergent surface that is a plane, wherein an optical composite film layer is configured on the emergent surface of the third lens (L3). On the basis of the optical composite film layer, the polarization state of the circularly polarized light is adjusted to form first linearly polarized light which propagates in a second propagation direction, and the first linearly polarized light is converted into second circularly polarized light. Next, by means of folding an optical path, the second circularly polarized light is converted into second linearly polarized light so as to pass through the emergent surface of the third lens (L3), such that an excellent imaging effect is ensured, the total optical length is small, and the size and weight are reduced.
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| WO/2020/119171 | OPTICAL IMAGING CAMERA |
| WO/2022/077599 | OPTICAL CAMERA LENS |
| JP2015076664 | LENS PHOTOELECTRIC CONVERSION DEVICE UNIT, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS |
Inventors:
JIA CHUNHUI (CN)
YANG FUZHEN (CN)
YANG FUZHEN (CN)
Application Number:
PCT/CN2022/142404
Publication Date:
February 01, 2024
Filing Date:
December 27, 2022
Export Citation:
Assignee:
NOLO CO LTD (CN)
International Classes:
G02B13/00; G02B1/10; G02B27/01
Foreign References:
| CN115453717A | 2022-12-09 | |||
| CN114675419A | 2022-06-28 | |||
| CN114415381A | 2022-04-29 | |||
| CN112433343A | 2021-03-02 | |||
| CN113433705A | 2021-09-24 | |||
| CN211505999U | 2020-09-15 | |||
| US20210033866A1 | 2021-02-04 |
Attorney, Agent or Firm:
BEIJING HEADSTAY INTELLECTUAL PROPERTY AGENCY (CN)
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