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:
Jun. 04, 1991
Filed:
Apr. 12, 1989
Makoto Tsugita, Tokyo, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A white balance adjusting device is disclosed for use in a camera which picks up an image of a field and creates a video signal representing the field. In the white balance adjusting device, the white balance of the video signal can be adjusted by control device in accordance with the color temperature signal that is detected by a color temperature detecting device and the light measurement signal that is obtained from a light measuring device. The control device judges that the weather is fine when the brightness of the field is equal to or greater than a given value and a color temperature detected is higher than the color temperature of the direct light of the sun, and performs a control operation so that the white balance adjustment can be achieved in accordance with the color temperature that corresponds to the fine weather. Therefore, according to the white balance adjusting device, the white balance adjustment can be carried out with accuracy even when taking a picture under the normal light in fine weather.