Title:
IMAGE PROJECTION DEVICE AND IMAGE PROJECTION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/048846
Kind Code:
A1
Abstract:
An image projection device may comprise: a ToF sensor configured to measure a distance to a target; a lamp assembly configured to output an image signal including a pattern image; an operation unit which controls the lens assembly to move in one axis direction; and a processor which measures a distance to a screen by means of the ToF sensor and controls the pattern image outputted through the lamp assembly to be projected on the screen. The processor may calculate a sharpness value of the pattern image projected on the screen through the lamp assembly, and adjust the size of the pattern image and a position at which the pattern image is projected on the basis of the calculated sharpness value.
Inventors:
CHO YONGKOOK (KR)
YOON WOONGBAE (KR)
YOU SUNGMIN (KR)
KIM HYUNSEOK (KR)
YOON WOONGBAE (KR)
YOU SUNGMIN (KR)
KIM HYUNSEOK (KR)
Application Number:
PCT/KR2022/018001
Publication Date:
March 07, 2024
Filing Date:
November 15, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N9/31; G03B21/14; G06T7/13
Domestic Patent References:
| WO2001047259A1 | 2001-06-28 |
Foreign References:
| JP2010230864A | 2010-10-14 | |||
| KR20180121100A | 2018-11-07 | |||
| JP2007264335A | 2007-10-11 | |||
| KR20120042404A | 2012-05-03 |
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
Download PDF:
Previous Patent: HYDROGEN FUELING ASSISTANCE DEVICE AND HYDROGEN FUELING SYSTEM COMPRISING SAME
Next Patent: DEVICE FOR MONITORING BIOMETRIC SIGNAL
Next Patent: DEVICE FOR MONITORING BIOMETRIC SIGNAL