Method and apparatus for material processing with a laser contro

Details Method and apparatus for material processing with a laser contro Method and apparatus for material processing with a laser contro

1993-02-01

1995-08-01

Ben, Loha

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 27, 2191216, 2191217, 21912174, G02B 532, B23K 2606

Patent

active

054384419

ABSTRACT:
Apparatus and method for performing material processing, such as drilling or welding, with a high intensity laser beam operating in the infrared spectrum, using a reflective holographic optical element (HOE) the surface of which is prepared to contain an image of the object under processing and energy intensity information, the object can be located in or out of line-of-sight with respect to the emitted laser beam.

REFERENCES:
patent: 3617702 (1971-11-01), Flournoy
patent: 3712813 (1973-01-01), Ross et al.
patent: 3807829 (1974-04-01), Close
patent: 4138190 (1979-02-01), Bryngdahl
patent: 4964698 (1990-10-01), Rowlette
Collier, et al., Optical Holography, Academic Press, New York 1971. pp. 35, 58-78.
Dakss et al, "Laser Multiple Hole Drilling," IBM Technical Disclosure Bulletin, vol. 13, No. 7, Dec. 1970, p. 1994.
J. M. Moran, "Laser Machining with a Holographic Lens," Applied Optics, vol. 10, No. 2, Feb. 1971, pp. 412-415.

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