Title:
PROJECTION TYPE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2013242496
Kind Code:
A
Abstract:
To properly control the temperature of a replaceable projector lens.
A projection type display device 100 having a replaceable projector lens 6 includes a projector lens determination unit 7 that determines the type of a projector lens, a fan 10 that cools the projector lens, and a control unit 9 that controls operation of the temperature control means (fan 10), according to the type of the projector lens determined by the projector lens determination means.
Inventors:
KURATOMI KAZUYUKI
Application Number:
JP2012117078A
Publication Date:
December 05, 2013
Filing Date:
May 23, 2012
Export Citation:
Assignee:
CANON KK
International Classes:
G03B21/16; G03B21/00; H04N5/74
Domestic Patent References:
| JP2013195490A | 2013-09-30 | |||
| JP2011039210A | 2011-02-24 | |||
| JP2007279755A | 2007-10-25 | |||
| JP2003005289A | 2003-01-08 | |||
| JP2003057754A | 2003-02-26 |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya
Atsushi Mizumoto
Hirayama Tomoya
Previous Patent: TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, AND ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD
Next Patent: IMAGING APPARATUS
Next Patent: IMAGING APPARATUS