1974-10-02
1977-08-23
Henry, Jon W.
G02B 2700
Patent
active
040436748
ABSTRACT:
A spatial filtered Q-switched laser system is disclosed having means to prevent ionization of air in close proximity to the aperture of the spatial filter. A compound lens system having an astigmatic focus is disposed between the laser and the spatial filter for defocusing the light beam emanating from the laser in the vicinity of the aperture of the spatial filter to an intensity below that which produces ionization of air. The preferred construction of the compound lens system as viewed from the laser comprises a cylindrical lens and a pair of positive lenses.
REFERENCES:
patent: 3704053 (1972-11-01), Farmer
patent: 3852767 (1974-12-01), Brooks
patent: 3868637 (1975-02-01), Schiller
Fletcher James C. Administrator of the National Aeronautics and Space
Heflinger Lee O.
Wuerker Ralph F.
Henry Jon W.
Mackin J. A.
Manning John R.
Musial N. T.
LandOfFree
Spatial filter for Q-switched lasers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spatial filter for Q-switched lasers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial filter for Q-switched lasers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2312602