초록 ▼

A preferred embodiment of a composite mirror comprises (1) a substrate of carbon-carbon, (2) intermediate layers of silicon carbide, silicon dioxide, (3) optically polished layers of metals and/or suitable glass (ultralow-expansion or modified fused-silica glass) and (4) an optical coating of high r

A preferred embodiment of a composite mirror comprises (1) a substrate of carbon-carbon, (2) intermediate layers of silicon carbide, silicon dioxide, (3) optically polished layers of metals and/or suitable glass (ultralow-expansion or modified fused-silica glass) and (4) an optical coating of high reflectivity. The resulting mirror exhibits desired features including high optical quality and a low coefficient of thermal expansion; such mirrors being well suited to high thermal flux applications. Methods of producing the composite mirror are described.

대표청구항 ▼

1. A mirror comprising a carbon-carbon substrate supporting an adherent optical coating of high reflectivity. 2. A mirror as set forth in claim 1 wherein said carbon-carbon substrate comprises three-dimensional woven carbon. 3. A mirror as set forth in claim 1 wherein said optical coating comprises

1. A mirror comprising a carbon-carbon substrate supporting an adherent optical coating of high reflectivity. 2. A mirror as set forth in claim 1 wherein said carbon-carbon substrate comprises three-dimensional woven carbon. 3. A mirror as set forth in claim 1 wherein said optical coating comprises a metal cladding having an optically reflective surface. 4. A mirror as set forth in claim 1 wherein said optical coating comprises a glass having an optically reflective surface. 5. A mirror for high thermal energy applications comprising: (a) a carbon-carbon substrate; and (b) a high reflectivity optical coating bonded to said substrate. 6. A mirror as set forth in claim 5 wherein said carbon-carbon substrate comprises three-dimensional woven carbon. 7. A mirror as set forth in claim 5 wherein said optical coating comprises a metal cladding having an optically reflective surface. 8. A mirror as set forth in claim 5 wherein said optical coating comprises a glass having an optically reflective surface. 9. A mirror for high thermal energy application comprising: (a) a carbon-carbon substrate; (b) an optical coating of high reflectivity; (c) means adhering said optical coating to said substrate. 10. A mirror for high thermal energy applications comprising: (a) a woven three-dimensional carbon-carbon composite substrate; (b) a layer of glass supported by said substrate; and (c) a layer of material of high reflectivity adhered to said layer glass. 11. A mirror as set forth in claim 10 further comprising means for adhering said layer of glass to said substrate. 12. A mirror as set forth in claim 10 further comprising a layer of silicon carbide adhering said layer of glass to said substrate. 13. A mirror as set forth in claim 10 wherein said layer of glass comprises a layer of ultra-low-expansion glass.