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. 21, 1977
Filed:
Dec. 05, 1975
Tetsuo Nishizawa, Kawagoe, JA;
Fuji Photo Optical Co., Ltd., Omiya, JA;
Abstract
A fading device for a motion picture camera includes a pair of sectors rotated with respect to each other to vary the angle of a light passing section formed thereby to obtain a fade-in or fade-out effect. The sectors are rotated relatively to each other by means of a drive mechanism operated by a motor by way of a change-over mechanism which is operable to change the direction of the relative rotation of the sectors. An indicator is connected with the change-over mechanism to indicate whether the fade-in or fade-out is possible in accordance with the situation of the sectors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile