| 摘要 |
A Light-weight low cost mirror for astronomical purposes and a method of manufacturing said light-weight mirror is disclosed. The light-weight mirror is comprised of an optical plate a backing plate and a core disposed between said optical plate and said backing plate. The core is comprised of a plurality of core strips. Said core strips are assembled in an arrangement wherein the core strips, the optical plate and the backing plate form cavities by the intersection of the core strips with the backing and the optical plate. The cavities are open the outside diameter edge of the mirror. A method is also disclosed for manufacturing the mirror by fusing the core to opposing faces of the optical plate and backing plate. Melt support assemblies are used to support the unfused backing plate and core strips. The unfused assembly is heated to the glass melting temperature to fuse the core to the optical plate and backing plate. After cooling to room temperature the core support assemblies are removed from the mirror blank. The mirror reflective surface is then manufactured using conventional telescope mirror reflective surfaces manufacturing methods.
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