Method of manufacturing a diffractive surface profile
First Claim
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1. A method of manufacturing a diffractive optical component, said method comprising, in order, the steps of:
- (i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having the following width l;
space="preserve" listing-type="equation">l<
2 micrometers;
(ii) making a mold by having a mold surface cut by said scoring tool to form a series of cuts on said mold surface, said cuts being separated by less than 2 micrometers;
(iii) placing an optically transmissive material in said mold; and
(iv) forming a diffractive surface of said optical component out of said refractive material.
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Abstract
A method of manufacturing a diffractive surface comprising: rotating a surface to be cut at a rate W>1,500 RPM; translating a cutting tip at low speed V where V<1.2 mm/minute; and cutting the surface with the cutting tip.
76 Citations
9 Claims
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1. A method of manufacturing a diffractive optical component, said method comprising, in order, the steps of:
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(i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having the following width l;
space="preserve" listing-type="equation">l<
2 micrometers;(ii) making a mold by having a mold surface cut by said scoring tool to form a series of cuts on said mold surface, said cuts being separated by less than 2 micrometers; (iii) placing an optically transmissive material in said mold; and (iv) forming a diffractive surface of said optical component out of said refractive material. - View Dependent Claims (2, 3, 4)
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3. An optical component comprising a refractive optical element with a diffractive surface profile made by the method of claim 1.
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4. An optical component comprising a diffractive surface profile made by the method of claim 2.
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5. A method of manufacturing diffractive surfaces, said method comprising, in order, the steps of:
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(i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having a width l wherein;
space="preserve" listing-type="equation">l<
2 micrometers;(ii) providing a body of optically transmissive material; and (iii) cutting a diffractive surface profile on a surface of said body of optically transmissive material with said scoring tool to form a series of cuts on said surface, each cut of said series of cuts being separated from another cut by less than 2 micrometers. - View Dependent Claims (6, 7, 8, 9)
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7. An optical component with a diffractive surface profile made by the method of claim 5.
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8. An optical component with a diffractive surface profile made by the method of claim 6.
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9. The method of manufacturing diffractive surfaces according to claim 6, wherein said tip is a diamond tip.
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Specification