Optics: measuring and testing – Range or remote distance finding – Triangulation ranging with photodetection – but with no...
Reexamination Certificate
2011-04-12
2011-04-12
Alsomiri, Isam (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
Triangulation ranging with photodetection, but with no...
C356S003130
Reexamination Certificate
active
07924409
ABSTRACT:
A rangefinder includes: a lens system (3) including multiple lenses (3a,3b) arranged so that their optical axes are parallel to each other and integrated together; an imager (4) having image capturing areas (4a,4b) that face the lenses (3a,3b) and transforming light incident on the image capturing areas into an electrical signal; a transparent plate (6) arranged between the imager and the lens system and having substantially the same thermal expansion coefficient as the lenses (3a,3b); markers (11a,11b) provided on the transparent plate for the lenses (3a,3b) and each casting its shadow on an associated image capturing area (4a,4b); a signal receiving section (21) receiving the electrical signal from the imager; and an image processing section (22) correcting the positions of the optical axes of the lenses by reference to information about the locations of the markers (11a,11b) on the respective images, thereby determining the distance to an object by performing a triangulation based on the corrected positions of the optical axes.
REFERENCES:
patent: 6046795 (2000-04-01), Sugiyama et al.
patent: 6337736 (2002-01-01), Sugiyama et al.
patent: 2004/0145722 (2004-07-01), Uomori et al.
patent: 2004/0263824 (2004-12-01), Yamamoto et al.
patent: 2005/0280709 (2005-12-01), Katayama
patent: 2009/0002505 (2009-01-01), Imada
patent: 04-043911 (1992-02-01), None
patent: 10-232128 (1998-09-01), None
patent: 2001-099643 (2001-04-01), None
patent: 2005-017078 (2005-01-01), None
patent: 2006-030157 (2006-02-01), None
patent: 2007-322128 (2007-12-01), None
International Search Report for corresponding application no. PCT/JP2009/000641 mailed Apr. 7, 2009.
Alsomiri Isam
Panasonic Corporation
Renner , Otto, Boisselle & Sklar, LLP
LandOfFree
Rangefinder and range finding method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rangefinder and range finding method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rangefinder and range finding method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2671287