Optics: measuring and testing – Sample – specimen – or standard holder or support
Patent
1996-03-13
1998-03-17
Font, Frank G.
Optics: measuring and testing
Sample, specimen, or standard holder or support
356256, 356239, G01N 2101, G01N 2100
Patent
active
057293414
ABSTRACT:
A method and apparatus for testing materials for use in a laser resonator includes selecting a test fixture apparatus having a housing with an internal chamber volume selected to approximate the internal volume of a predetermined laser resonator and having a pair of sealed windows therein which are removably attached to the housing and having optical coatings selected to match the coating on the optics of a laser. The housing has a removable cover and a gas purging opening. A laser of a predetermined wavelength and power is mounted adjacent the test fixture and is aligned for directing the laser beam through both of the windows of the test fixture. A material is placed in the test fixture and a laser beam directed through the coated windows for a predetermined period of time and thereafter the coated windows are examined for damage or contamination. The test fixtures are also cleaned and certified prior to testing so that a preselected test fixture can determine damage for selective materials used therein.
REFERENCES:
patent: 3794431 (1974-02-01), Rothrock
patent: 3999865 (1976-12-01), Milam et al.
patent: 5417494 (1995-05-01), Kempa et al.
patent: 5440143 (1995-08-01), Carangelo et al.
Guch, Jr. Steve
Hovis Floyd E.
Radcliffe Chris
Shepherd Bart A.
Font Frank G.
Hobby III William M.
Litton Systems Inc.
Merlino Amanda
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