Protective optical filter assembly

Details Protective optical filter assembly Protective optical filter assembly

2005-07-19

2005-07-19

Juba, Jr., John (Department: 2872)

Optical: systems and elements

Protection from moisture or foreign particle

Sealing

C359S507000, C359S580000, C359S590000, C359S890000, C359S892000

Reexamination Certificate

active

06918673

ABSTRACT:
A protective optical filter assembly for thin film filters having two transparent substrates facing one another and separated by a resilient element, a sealed region is formed between the transparent substrates by applying a compressive force that compresses the resilient element. The thin film filter may be contained within a carrier. The compressive force may be generated by one or more interference-fit aperture rings or threaded apertures ring, a given aperture ring may be opposed by another such aperture ring or a fixed stop. Alternatively a snap fit carrier may be used to generate the compressive force. The sealed region may have a gas having a positive pressure or a liquid.

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PTO-2004-4041 English-language translation of German Auslegeshrift 1,002,137, USDOC/STIC/Translations Branch, J.M. Koytcheff, translator. Jul. 2004.

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