May 6, 2025

US12292260 - Reflector device and system for selective reflection of electromagnetic radiation

The invention relates to a reflector comprising a reflector cavity ( 110 ) having a front opening for receiving EMR into the reflector cavity ( 110 ) for subsequent reflection of the EMR by at least one reflector element ( 120 ) arranged within the reflector cavity ( 110 ), characterized in that the reflector further comprises a front cover ( 130 ) that has high EM R transmittance in at least parts of the EM spectrum, the front cover ( 130 ) being arranged to cover the front opening of the reflector cavity ( 110 ), and that the front cover ( 130 ) and front opening form a gastight seal ( 140 ) impermeable to gas to prevent transport of material into and out of the reflector cavity ( 110 ) through the front opening.

Assignee: SAAB AB
Inventors: Per Cederwall, Stefan Andersson
Filing date: 2018-12-13

The patent describes a reflector device designed to selectively reflect electromagnetic radiation (EMR) while maintaining a gastight seal to prevent material transport into and out of its cavity. It features a front cover that is transmissive to EMR, ensuring effective functionality while protecting the internal components.

Claim 1

A reflector ( 100 ) comprising a reflector element ( 120 ) having a hollow structure and a front opening, the hollow structure and the front opening of the reflector element together defining a reflector cavity ( 110 ), wherein: the reflector is configured to received electromagnetic radiation (EMR) into the reflector cavity ( 110 ) via the front opening, for subsequent reflection of the EMR by the reflector element ( 120 ), the reflector further comprises a front cover ( 130 ) which is EMR transmissive in at least parts of the EM spectrum, the front cover ( 130 ) being arranged to cover the front opening of the reflector cavity ( 110 ) at the reflector element ( 120 ), and the front cover ( 130 ) and the reflector element ( 120 ) form a gastight seal ( 140 ) to prevent transport of material into and out of the reflector cavity ( 110 ) through the front opening. wherein: the reflector is configured to received electromagnetic radiation (EMR) into the reflector cavity ( 110 ) via the front opening, for subsequent reflection of the EMR by the reflector element ( 120 ), the reflector further comprises a front cover ( 130 ) which is EMR transmissive in at least parts of the EM spectrum, the front cover ( 130 ) being arranged to cover the front opening of the reflector cavity ( 110 ) at the reflector element ( 120 ), and the front cover ( 130 ) and the reflector element ( 120 ) form a gastight seal ( 140 ) to prevent transport of material into and out of the reflector cavity ( 110 ) through the front opening. the reflector is configured to received electromagnetic radiation (EMR) into the reflector cavity ( 110 ) via the front opening, for subsequent reflection of the EMR by the reflector element ( 120 ), the reflector further comprises a front cover ( 130 ) which is EMR transmissive in at least parts of the EM spectrum, the front cover ( 130 ) being arranged to cover the front opening of the reflector cavity ( 110 ) at the reflector element ( 120 ), and the front cover ( 130 ) and the reflector element ( 120 ) form a gastight seal ( 140 ) to prevent transport of material into and out of the reflector cavity ( 110 ) through the front opening.

Google Patents

https://patents.google.com/patent/US12292260

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12292260