Title:
BEAM SHIFTING APPARATUS, SCANNING METHOD, SCANNING APPARATUS, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/197356
Kind Code:
A1
Abstract:
A beam shifting apparatus (33), a scanning method, a scanning apparatus, and a display apparatus (30). The beam shifting apparatus (33) comprises a driver (221) and a light shifting plate (222) that is driven by the driver (221); the light shifting plate (222) comprises a plurality of shifting regions; the refractive indexes or the thicknesses of the plurality of shifting regions are monotonically changed along the rotation direction of the light shifting plate (222), so that scanning beams are sequentially shifted by a preset shift amount within a rotation period; and an inclination angle is preset between the beam shifting apparatus (33) and each scanning beam. The beam shifting apparatus (33) can sequentially shift the scanning beams by the preset shift amount, and is simple in structure and easy to control.
Inventors:
ZHANG CUIPING (CN)
YAN ZISHEN (CN)
HU FEI (CN)
YU XIN (CN)
LI YI (CN)
YAN ZISHEN (CN)
HU FEI (CN)
YU XIN (CN)
LI YI (CN)
Application Number:
PCT/CN2021/084189
Publication Date:
October 07, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G02B26/10; G02B26/08
Foreign References:
| CN212181159U | 2020-12-18 | |||
| CN110291441A | 2019-09-27 | |||
| US4962982A | 1990-10-16 | |||
| US5438446A | 1995-08-01 | |||
| JP2012242627A | 2012-12-10 |
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