Method of producing micro-apertures in optically flat surfaces a

Details Method of producing micro-apertures in optically flat surfaces a Method of producing micro-apertures in optically flat surfaces a

1997-07-30

1999-03-16

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

29557, 219 6917, 21912171, B23P 1304, B23H 500

Patent

active

058814450

ABSTRACT:
A method of producing an aperture extending from an optically flat surface through a substrate defining the optically flat surface to a surface of the substrate remote from the optically flat surface comprising the steps of: a) forming the optically flat surface; b) etching to form the remote surface to produce an area of the substrate of a desired thinness bounded by the optically flat surface; and c) laser cutting through the area of desired thinness from the remote surface toward the optically flat surface to produce aperture, of a desired shape and size; and a structure when made by the method.

REFERENCES:
patent: 4092210 (1978-05-01), Hoepfner
patent: 4117301 (1978-09-01), Goel et al.
patent: 5609779 (1997-03-01), Crow et al.

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