Title:
OPTICAL SCANNING TYPE HEAD MOUNT DISPLAY AND RETINA SCANNING TYPE HEAD MOUNT DISPLAY
Document Type and Number:
Japanese Patent JP2018056733
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical scanning type head mount display and a retina scanning type head mount display improving the installation property or use feeling of a head mount portion.SOLUTION: An optical scanning type head mount display has an optical scanning control device 10 which emits a laser beam according to an image signal as image light; a transmission cable 20 which transmits the image light emitted from the optical scanning control device; and a head mount portion HM which is equipped with an optical scanning portion having a mirror portion 31 for scanning the image light transmitted by the transmission cable. The head mount portion HM has an amplifying portion 43 which amplifies an operation signal according to the inclination of the mirror portion outputted from the optical scanning portion. The optical scanning control device has a differential generating portion 126 which generates a differential signal from the operation signal outputted from the amplifying portion through the transmission cable, and a filter portion 127 which removes a disturbance of the differential signal generated by the differential generating portion.SELECTED DRAWING: Figure 3
Inventors:
OBA KIMIYUKI
Application Number:
JP2016188953A
Publication Date:
April 05, 2018
Filing Date:
September 28, 2016
Export Citation:
Assignee:
MITSUMI ELECTRIC CO LTD
International Classes:
H04N5/64; G02B27/02
Domestic Patent References:
| JP2011215325A | 2011-10-27 | |||
| JP2015158614A | 2015-09-03 | |||
| JP2009533715A | 2009-09-17 | |||
| JP2014038240A | 2014-02-27 |
Foreign References:
| US20080088937A1 | 2008-04-17 | |||
| US20100079865A1 | 2010-04-01 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito