Diamond crystal coated mold for forming optical elements
AssigneeCanon Kabushiki Kaisha
InventorNoriko Kurihara
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Abstract
Disclosed is a mold for forming glass material into optical elements, such as lenses and prisms, by press molding. In particular, the optical-element-molding surface of this mold is coated with diamond crystals in predetermined, spaced apart portions.
Claims5
A mold for forming optical elements of glass by press molding, comprising a mold base on which at least a molding surface thereof is coated with diamond crystals in such a manner that the diamond crystals are formed at predetermined portions selectively in a dispersed state, and areas adjacent to where each diamond crystal is formed are not in contact with each other.
A mold for forming optical elements of glass by press molding, comprising a mold base on which at least a molding surface thereof is coated with a film consisting of diamond monocrystals existing in predetermined portions and amorphous carbon existing between the diamond monocrystals.
Dependencies are inferred from the claim text.