Zoom lens apparatus

Details Zoom lens apparatus Zoom lens apparatus

2007-10-09

2007-10-09

Schwartz, Jordan (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C396S379000

Reexamination Certificate

active

11389145

ABSTRACT:
A zoom lens apparatus is provided. In the zoom lens apparatus, rotation of a motor is transmitted to a cam drive gear by reducing a speed thereof by a plurality of reduction gears. The cam drive gear transmits rotation thereof to a zoom cam provided coaxially therewith. A first lens group and a second lens group are moved in an optical axis direction by rotation of the zoom cam to carry out zoom adjusting. An interval between the cam drive gear and the zoom cam is provided with a nontransmitting section in which rotation of the cam drive gear is not transmitted to the zoom cam when a rotational direction of the cam drive gear is switched, by rotation of the cam drive gear in the nontransmitting section, the zoom cam is slid in an axial direction. Thereby, also the first lens group and the second lens group connected and engaged with the zoom cam are moved in the optical axis direction along therewith to adjust a focus.

REFERENCES:
patent: 2002/0071674 (2002-06-01), Omiya
patent: 9-49958 (1997-02-01), None
patent: 11-64708 (1999-03-01), None

Affiliated with

Also associated with

Rating

Zoom lens apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3902222