Laser beam expanders

Details Laser beam expanders Laser beam expanders

1994-07-01

1996-07-02

Epps, Georgia Y.

Optical: systems and elements

Lens

Fluid

G02B 106

Patent

active

055328806

ABSTRACT:
A lens system (10) for a 5X laser beam expander includes lens elements (11, 12, 13, 14) which consist of crystalline and liquid optical materials. Several embodiments, using different materials for the lens elements (11, 12, 13, 14), provide diffraction-limited performance without refocussing over several wavelength ranges, the broadest being from 0.24 to 2.5 microns.

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patent: 4958919 (1990-09-01), Sigler
patent: 5033831 (1991-07-01), Sigler
patent: 5345337 (1994-09-01), Sigler
patent: 5373396 (1994-12-01), Robb
patent: 5384657 (1995-01-01), Robb
patent: 5446591 (1995-08-01), Medlock
Li, H. H., "Refractive Index of Alkali Halides and Its Wavelength and Temperature Derivatives", J. Phys. Chem. Ref. Data, vol. 5, No. 2, 1976, pp. 332-360, 436-448.
Li, H. H., "Refractive Index of Alkali Halides and Its Wavelength and Temperature Derivatives", J. Phys. Chem. Ref. Data, vol. 9, No. 1, 1980, pp. 163-175, 226-246.
Robb, Paul N., "Selection of Optical Glasses", Proceedings of the International Lens Design Conference, Cherry, Hill, New Jersey, vol. 554, 10-23 Jun. 1985, pp. 60-75.
Robb, Paul N., "Commercial Applications of Liquid Optical Elements", Proceedings of Passive Materials for Optical Lens Elements II, San Diego, California, vol. 2018, 14-15 Jul. 1993, pp. 216-223.

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