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:
Mar. 24, 1987
Filed:
Oct. 12, 1984
Takuji Suzaki, Uji, JP;
Koji Yamamoto, Kyoto, JP;
Omron Tateisi Electronics Co., Kyoto, JP;
Abstract
An image pick-up device for picking up the image of an object having different degrees of brightness, ranging from a low degree to a high degree. The device includes a light source for irradiating the object, an image pick-up unit for picking up an image of the object, and an optical system disposed between the object and the image pick-up unit for forming the image of the object on the image pick-up unit. A discrimination circuit designates a region of high brightness in the image of the object picked-up by the image pick-up unit, and a detection circuit detects the brightness level of a designated region of high brightness. A light transmittance changing circuit reveives a representation of the detected brightness level of the designated region of high brightness from the detection circuit responsive to a designation of a region of high brightness by the discrimination circuit and decreases the light transmittance in a region of the optical system corresponding to the designated region of high brightness in the image. The discrimination circuit includes a comparison circuit for comparing the brightness of the image of the object with a predetermined reference level to automatically designate a region of high brightness.