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Adjustable aperture
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Patent number 4,910,739
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Issue date Mar 20, 1990
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Spectra-Physics
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Shinan-Chur S. Sheng
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G02 - OPTICS
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Fritless endbell assembly
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Patent number 4,706,256
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Issue date Nov 10, 1987
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Spectra-Physics, Inc.
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Shinan-Chur S. Sheng
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H01 - BASIC ELECTRIC ELEMENTS
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Capillary bore suspension
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Patent number 4,644,554
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Issue date Feb 17, 1987
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Spectra-Physics, Inc.
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Shinan-Chur Sheng
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H01 - BASIC ELECTRIC ELEMENTS
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Cold cathode construction
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Patent number 4,477,908
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Issue date Oct 16, 1984
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Spectra-Physics, Inc.
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Shinan-Chur Sheng
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H01 - BASIC ELECTRIC ELEMENTS