Title:
Image projection device
Document Type and Number:
Japanese Patent JP6231591
Kind Code:
B2
Abstract:
An image projection device includes: a first mirror oscillating to scan an image light beam forming an image projected onto a retina of a user; a light source emitting the image light beam and a detection light beam to the first mirror at different timings; a second mirror having a first region reflecting the image light beam reflected by the first mirror to the retina and a second region reflecting the detection light beam reflected by the first mirror in a direction different from a direction in which the image light beam is reflected, and scanning neither the image light beam nor the detection light beam reflected by the first mirror; a detector detecting the detection light beam reflected by the second region; and a controller adjusting oscillation of the first mirror and an emission timing of the image light beam based on a detection result by the detector.
Inventors:
Yasuhiko Arakawa
Mitsuru Sugawara
Makoto Suzuki
Shuichi Fujijo
Mitsuru Sugawara
Makoto Suzuki
Shuichi Fujijo
Application Number:
JP2016021013A
Publication Date:
November 15, 2017
Filing Date:
February 05, 2016
Export Citation:
Assignee:
Qd laser inc.
National University Corporation Tokyo University
National University Corporation Tokyo University
International Classes:
G02B27/02; G02B26/10; G09G3/02; H04N5/64
Domestic Patent References:
| JP2008089930A | ||||
| JP2006235274A | ||||
| JP2015111231A | ||||
| JP2012118291A | ||||
| JP2006039271A | ||||
| JP2014010409A |
Attorney, Agent or Firm:
Shuhei Katayama
Teruo Yokoyama
Teruo Yokoyama