Title:
OPTICAL PATH CONTROL DEVICE, DISPLAY DEVICE, AND OPTICAL PATH CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/048246
Kind Code:
A1
Abstract:
The present invention comprises: an optical unit (20) on which light is incident; a swinging part (12A) having a first swinging portion (21) supporting the optical unit (20) and a second swinging portion (22) swingably supporting the first swinging portion (21); a first actuator (25) that causes the swinging part (12A) to swing about a first swing axis (21); a second actuator (26) that causes the swinging part (12A) to swing about a second swing axis (BX) intersecting the first swing axis (AX); and a drive unit (16) that applies a drive signal having a current value to the first actuator (25) and the second actuator (26). When a drive signal having a prescribed current value for which the current value is set in advance is applied to one actuator among the first actuator (25) and the second actuator (26) to maintain the first swinging portion (21) or the second swinging portion (22) at an inclined position inclining with respect to a reference position, the drive unit (16) applies a drive signal having a current value of zero to the other actuator to maintain the first swinging portion (21) or the second swinging portion (22) at the reference position.
Inventors:
TAKADA HIROYUKI (JP)
Application Number:
PCT/JP2022/035422
Publication Date:
March 30, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G09G3/20; G02B26/08; G03B21/00; G03B21/14; G09G3/36; H04N5/74
Foreign References:
| JP2020091343A | 2020-06-11 | |||
| JP2016071232A | 2016-05-09 | |||
| JP2016071233A | 2016-05-09 | |||
| JP2019066775A | 2019-04-25 | |||
| US20190166340A1 | 2019-05-30 | |||
| JP2020088844A | 2020-06-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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