Cutting tool using a diamond window
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United States of America Patent
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-
Mar 16, 1993
Grant Date -
N/A
app pub date -
Apr 22, 1991
filing date -
Apr 23, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A cutting tool such as a laser knife comprises a passage for a beam of light, a layer of single crystal diamond located in the passage to intercept the light passing down the passage, the diamond layer presenting a surface for the incoming light and a surface for the outgoing light, and an anti-reflective coating bonded to at least one of the surfaces. The anti-reflective coating is typically a silicon ceramic material for wavelengths not exceeding 2 .mu.m and typically a polycrystalline diamond for wavelengths of at least 2 .mu.m.
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