Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIDE-ANGLE IMAGING OPTICAL SYSTEM, WIDE-ANGLE IMAGING DEVICE WITH SAME, MONITORING IMAGING DEVICE, VEHICLE-MOUNTED IMAGING DEVICE, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2005/033766
Kind Code:
A1
Abstract:
There are provided a reflection optical system including first and second reflective surfaces (1, 2) directly reflecting a light beam from an object, a third reflective surface (3) reflecting the light beam from the first reflective surface (1), and a fourth reflective surface (4) reflecting the light beam from the second reflective surface (2); an image-forming optical system (7); an open section defined between the first and second reflective surfaces (1, 2) and receiving the light beam from the object; and an opening (12a) for directing the light beams from the third and fourth reflective surfaces (3, 4) to the image-forming optical system (7). The optical system in order of conjugate distance, from the first reflective surface (1) through the third reflective surface (3) to the image-forming optical system (7) is made a first imaging optical system; and the optical system, in order of conjugate distance, from the second reflective surface (2) through the fourth reflective surface (4) to the image-forming optical system (7) is made a second imaging optical system. In this case, the first and second imaging optical systems share the image-forming optical system.

Inventors:
Matsuki, Daizaburo
Yamamoto, Yoshiharu
Yoshikawa, Motonobu
Application Number:
PCT/JP2004/014792
Publication Date:
April 14, 2005
Filing Date:
September 30, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka 01, 57185, JP)
Matsuki, Daizaburo
Yamamoto, Yoshiharu
Yoshikawa, Motonobu
International Classes:
G03B15/00; B60R1/00; G02B7/02; G02B13/06; G02B13/14; G02B13/18; G02B17/08; G03B37/00; H04N5/225; (IPC1-7): G02B17/08; G03B15/00; G03B37/00; H04N5/225
Domestic Patent References:
1994-06-09
Foreign References:
JP2003163819A2003-06-06
JP2002131808A2002-05-09
JP2003528351A2003-09-24
JP2002303791A2002-10-18
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (26th Floor, OAP Tower 8-30, Tenmabashi 1-chome, Kita-k, Osaka-shi Osaka 26, 53060, JP)
Download PDF: