The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2000
Filed:
Apr. 28, 1999
Applicant:
Inventor:
Tooru Nagaoka, Nagano-Pref, JP;
Assignees:
FIT Corporation, Nagano-Pref., JP;
Rios Corporation, Okayama-Pref., JP;
Advanet, Inc., Okayama-Pref., JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359749 ; 359672 ;
Abstract
An image is picked up by a camera comprising a fisheye lens having a relationship of h=n.multidot.f.multidot.tan(.theta./m), wherein h is the height of an image of a subject at a certain point, f is the focal distance of the fisheye lens, .theta. is a field angle, m has a value of 1.6.ltoreq.m.ltoreq.3, and n has a value of m-0.4.ltoreq.n.ltoreq.m+0.4, and the image data of which is output from the camera, is converted into a plane image by an image data processing unit, and this converted image is then output to a monitor unit. Preferably, n and m both equal 2.