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- W2062893293 abstract "Replication of large scale optical quality mirrors has been demonstrated to be feasible for the first time in recent development work by Talbert Reflectors. This paper traces the stages of the development process from the author's first thoughts about large lightweight mirrors through pilot production of flight simulator mirrors. Large scale surfaces are possible because high vacuum is not required for fabrication of the optical surface. Sizes to 10 by 14 feet are feasible. Surface shapes are relatively unrestricted--spheric or off-axis aspheric shapes can be produced. Surface accuracies of 0.5 arc minutes per foot slo, e error have been achieved. Surface accuracy testing experience includes investigation of edge trimming, iamage, and creep effects. Lightness in weight and great rigidity are accomplished at relatively low cost by use of an aluminum honeycomb/epoxy-fiberglass substrate. Structural and thermal characteristics can be designed for specific applications. Standard optical coatings may be applied. A recent aluminum coating with an enhanced sili con dioxide overcoat measured 92% at 5500 A and passes both tape and cheesecloth abrasion tests. Applications include flight simulator displays, visual and TV projection systems, solar energy collectors, IR laser systems, millimeter and submillimeter radio reflectors.© (1977) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only." @default.
- W2062893293 created "2016-06-24" @default.
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- W2062893293 date "1977-11-14" @default.
- W2062893293 modified "2023-09-23" @default.
- W2062893293 title "<title>Large, Lightweight, Replicated Mirrors</title>" @default.
- W2062893293 doi "https://doi.org/10.1117/12.955624" @default.
- W2062893293 hasPublicationYear "1977" @default.
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