Title:
MULTI-FOCUS IMAGE GENERATING APPARATUS, HEAD-UP DISPLAY APPARATUS, RELATED METHOD, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/227657
Kind Code:
A1
Abstract:
A multi-focus image generating apparatus, a head-up display apparatus, a related method, and a device. The multi-focus image generating apparatus comprises an image generating unit, a light splitter (203), and a focal length adjuster (204). The image generating unit is configured to generate a first focal surface of the multi-focus image generating apparatus; the light splitter (203) is configured to perform light splitting for the image generating unit, and irradiate the surface of the focal length adjuster (204) with light beams obtained by light splitting; the focal length adjuster (204) is configured to perform focal length adjustment on the light beams irradiating the surface of the focal length adjuster (204), so as to generate a second focal surface of the multi-focus image generating apparatus. The focal length is adjusted flexibly by means of the focal length adjuster (204), so as to achieve continuous adjustment of any focal lengths, and form any number of focal surfaces (or imaging surfaces) at any positions.
Inventors:
MAO LEI (CN)
YAN YUNFEI (CN)
ZONG LIANGJIA (CN)
YAN YUNFEI (CN)
ZONG LIANGJIA (CN)
Application Number:
PCT/CN2021/081944
Publication Date:
November 18, 2021
Filing Date:
March 20, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B27/01
Foreign References:
| CN207752239U | 2018-08-21 | |||
| CN108139584A | 2018-06-08 | |||
| CN207366832U | 2018-05-15 | |||
| CN105785569A | 2016-07-20 | |||
| JP2013032087A | 2013-02-14 | |||
| CN202010413996A | 2020-05-15 |
Other References:
See also references of EP 4134728A4
Download PDF: