Title:
LENS ALIGNMENT ADJUSTMENT DEVICE AND PROJECTOR EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2017/126426
Kind Code:
A1
Abstract:
This lens alignment adjustment device makes it possible to arbitrarily correct the accuracy of the angle between the optical axes of a projector main body and a lens unit while keeping the distance between the lens unit and the projector along an optical axis constant. Provided is a lens alignment adjustment device (6) that is provided in a projector (1), holds a projection lens (36) , and is capable of adjusting the inclination of an optical axis (36j) of the projection lens relative to the projector, said lens alignment adjustment device including a base plate (62) held in a prescribed orientation relative to the projector, and a lens fixing plate (63) to which the projection lens is secured, wherein: the lens fixing plate (63) is pivotally coupled to the base plate (62) via a first center pin (11) orthogonal to the optical axis of the projection lens (36); and the lens alignment adjustment device (6) is provided with a first adjustment means for setting the inclination angle of the lens fixing plate about the first center pin (11) relative to the base plate (62).
Inventors:
CHIKAMOTO NORIAKI
FURUI HIROYUKI
NEMURA AKIRA
FURUI HIROYUKI
NEMURA AKIRA
Application Number:
PCT/JP2017/001004
Publication Date:
July 27, 2017
Filing Date:
January 13, 2017
Export Citation:
Assignee:
THK CO LTD (JP)
SEIKO EPSON CORP (JP)
SEIKO EPSON CORP (JP)
International Classes:
G02B7/02; G03B21/14; G03B21/00; H04N5/74
Foreign References:
| JPH08195923A | 1996-07-30 | |||
| JP2004004206A | 2004-01-08 | |||
| JP2014071195A | 2014-04-21 | |||
| JP2010008761A | 2010-01-14 | |||
| JP2008292778A | 2008-12-04 | |||
| JPH09163273A | 1997-06-20 | |||
| JP2001218102A | 2001-08-10 | |||
| JP2008517348A | 2008-05-22 |
Attorney, Agent or Firm:
IDE Tetsuroh (JP)
Download PDF: