Reflector and method for manufacturing the same
 A reflector has a base body which is made of a metallic material having an ionization potential substantially higher than that of aluminum. An aluminum reflecting layer is formed on one surface of the base body by vacuum deposition. Furthermore, a light-transmitting water-insoluble inorganic oxide layer is formed on the aluminum reflecting layer. The light-transmitting inorganic oxide layer has its micropores sealed by H.sub.2 O or a carboxylate of an iron family element having a low valence. An insulating layer is formed to cover at least the other surface and the peripheral side of the base body. 
NHK Spring Co., Ltd.
G C G Y C Y G
G02B C23C G02B Y10T C23C Y10T G02B
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Hajime Akira Shitomi
Shimabukuro Ohno Katayama