ARBITRARY SURFACE OPTICAL ELEMENT AND METHOD OF MAKING THE SAME

An arbitrary surface optical element, such as a mirror for use in a rear projection television, includes a non-optical portion (210) and an optical portion (220). The non-optical portion (210) circumscribes the optical portion (220) and has a thickness greater than the optical portion. Accordingly,...

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Bibliographische Detailangaben
Hauptverfasser:	FREY, PAUL, D, POPPELL, DAVID, DANIEL, DAVIES, KATHLEEN, HANNON, GUO, QING, CHUANG, CHARLES, CHIA-MING, BURNETT, WILLIAM, ROBERT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An arbitrary surface optical element, such as a mirror for use in a rear projection television, includes a non-optical portion (210) and an optical portion (220). The non-optical portion (210) circumscribes the optical portion (220) and has a thickness greater than the optical portion. Accordingly, the two portions cool at approximately the same rate, thereby minimizing warpage from differential cooling. Cet élément optique à surface arbitraire, notamment un miroir pour un rétroprojecteur, comprend une partie non optique (210) et une partie (220). La partie non optique (210) entoure la partie optique (220) et présente une épaisseur supérieure à celle de la partie optique. Les deux parties se refroidissent environ à la même vitesse, d'où une diminution du gauchissement du à un refroidissement différentiel.