Zoom lens device

Details Zoom lens device Zoom lens device

2007-12-11

2007-12-11

Thompson, Timothy J. (Department: 2873)

Optical: systems and elements

Lens

With support

C359S821000, C359S822000

Reexamination Certificate

active

11727117

ABSTRACT:
A cam barrel19rotates in one way in varying a power to move four lens holding frames in the same direction by displacements of four cam openings33to36. Cam barrel cam followers48are provided on an outer periphery of the cam barrel19. The cam barrel cam followers48are passed through cam barrel cam openings47provided to a fixed barrel being arranged on an outer periphery of the cam barrel19, and engage with a power variation driving ring arranged on an outer periphery of the fixed barrel. The power variation driving ring is used to rotate the cam barrel19and move respective lens holding frames. Since the cam barrel cam followers48engage with the cam barrel cam openings47, the cam barrel19is moved according to displacements of the cam barrel cam openings47while holding respective lens holding frames.

REFERENCES:
patent: 4-57007 (1992-02-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3866351