Device for producing ring-shaped laser spot

Details Device for producing ring-shaped laser spot Device for producing ring-shaped laser spot

1995-06-21

1997-06-10

Epps, Georgia Y.

Optical: systems and elements

Lens

With light limiting or controlling means

359558, G02B 2709

Patent

active

056382200

ABSTRACT:
The present invention relates to a projector using laser light, and more particularly to a ring-shaped laser spot capable of forming a projected image having a ring-shaped projected image formed from a diffraction fringe, by interposing a diaphragm between a collimator lens and a target. The collimator lens transmits laser light emitted from a laser light source to the target to form a first projected image on the target. The diaphragm shapes the laser light transmitted through the collimator lens to form a ring-shaped second projected image as a diffraction fringe on the target.

REFERENCES:
patent: Re32988 (1989-07-01), Smid
patent: 3990786 (1976-11-01), Jorna

Affiliated with

Also associated with

Rating

Device for producing ring-shaped laser spot does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for producing ring-shaped laser spot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for producing ring-shaped laser spot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-769603