Lens with internal aperture
AssigneeFacebook Technologies, LLC
InventorsKurt Allen Jenkins, Chad Lichtenhan, Michael Patrick Schaub, Byron Taylor
Life of this patent
Estimating the term…
Abstract
A lens with an internal aperture includes a first region of optically-transmissive material, a second region of optically-transmissive material, and an internal aperture element. The first region of optically transmissive material defines a first surface of the lens and the second region defines a second surface of the lens that is opposite the first surface. The internal aperture element is integrally disposed between the first region and the second region and defines the aperture of the lens.
Claims20
A lens, comprising:
- a first region of optically-transmissive material that is configured to define a first surface of the lens;
- a second region of optically-transmissive material that is configured to define a second surface of the lens opposite the first surface;
- and
- an internal aperture element integrally disposed between the first region and the second region, wherein the internal aperture element is configured to define an aperture of the lens.
A method of fabricating a lens, the method comprising:
- dispensing a liquid optically-transmissive material into a mold cavity while an internal aperture element is disposed within the mold cavity, wherein the internal aperture element is configured to define an aperture of the lens;
- and
- curing the liquid optically-transmissive material to form the lens having a first surface, a second surface that is opposite the first surface, and the internal aperture element disposed between the first surface and the second surface of the lens.
A method of fabricating an internal aperture for a glass lens, the method comprising:
- providing the glass lens that includes:
- a first surface;
- a second surface that is opposite the first surface;
- and
- a side edge that surrounds a periphery of the glass lens;
- etching a groove in the glass lens on the side edge, wherein the groove extends for the periphery of the glass lens;
- and
- placing an opaque material in the groove to define the internal aperture of the glass lens.
Dependencies are inferred from the claim text.