PRINTED BALL LENS AND METHODS FOR THEIR FABRICATION
First Claim
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1. A method of fabricating an optical element, the method comprising:
- providing a textured substrate, wherein a surface of the textured substrate comprises a plurality of protrusions;
depositing one or more droplets of ball lens precursor material on the surface of the textured substrate, wherein each droplet is configured to form a substantially spherical shape on the surface of the textured substrate without dispersing within one or more cavities located between the protrusions; and
curing the one or more droplets of ball lens precursor material.
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Abstract
Optical elements, particularly micro-ball lenses, and methods of forming optical elements are described. A method of forming micro-ball lenses may include providing a textured substrate, depositing one or more droplets of ball lens precursor material on the surface of the textured substrate, and curing the one or more droplets of ball lens precursor material. A surface of the textured substrate may include a plurality of protrusions. Each droplet may be configured to form a substantially spherical shape on the surface of the textured substrate without dispersing within one or more cavities located between the protrusions.
6 Citations
46 Claims
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1. A method of fabricating an optical element, the method comprising:
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providing a textured substrate, wherein a surface of the textured substrate comprises a plurality of protrusions; depositing one or more droplets of ball lens precursor material on the surface of the textured substrate, wherein each droplet is configured to form a substantially spherical shape on the surface of the textured substrate without dispersing within one or more cavities located between the protrusions; and curing the one or more droplets of ball lens precursor material. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 14, 18, 19, 20, 23, 24, 25, 26)
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6. (canceled)
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11-13. -13. (canceled)
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15-17. -17. (canceled)
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21-22. -22. (canceled)
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27. (canceled)
- 28. An optical element comprising one or more ball lenses arranged on a textured substrate having a plurality of protrusions, wherein the ball lens is substantially spherical in shape and has a contact angle on the surface of the textured substrate that is greater than or equal to about 120°
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32. (canceled)
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42-44. -44. (canceled)
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46-69. -69. (canceled)
Specification