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:
Jan. 05, 1993
Filed:
Nov. 12, 1991
Abstract
An improved mechanism for cameras includes a solenoid which drives a cam ring to rotate to a control position for focusing or exposing; a motor drives a planetary gear set which includes a swing arm with a pinion fixed thereon. When the cam ring is in the control position for focusing, the pinion transmits the power generated by the motor to the teeth of the focusing ring to cause the focusing ring to rotate and focus. When the cam ring is in the control position of exposing, the pinion disengages from the teeth of the focusing ring to engage with the internal gear of the planetary gear set to cause the swing arm to oscillate and thereby actuate the shutter mechanism. At this time, the cam ring also initiates the movement of a ratchet set so that the focusing ring cannot move freely during the exposure process.