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US 8,985,810 B2Granted
Illumination apparatus
AssigneeOptovate Limited
InventorsGraham John Woodgate, Jonathan Harrold
Life of this patent
Estimating the term…
Abstract
An illumination apparatus and method of manufacture of the same in which an array of light-emitting elements is aligned to an array of optical elements to achieve a thin and efficient light source that can also be arranged to provide directional and/or programmable illumination.
Claims58
A method of manufacturing an illumination apparatus;
- the method comprising:
- forming a monolithic array of light-emitting elements;
- selectively removing a plurality of light-emitting elements from the monolithic array in a manner that preserves the relative spatial position of the selectively removed light-emitting elements;
- forming a non-monolithic array of light-emitting elements with the selectively removed light-emitting elements by mounting the selectively removed light-emitting elements on a substrate in a manner that preserves the relative spatial position of the selectively removed light-emitting elements;
- and
- separately forming an integrated optical body comprising an array of catadioptric optical elements;
- and
- aligning the substrate comprising the non-monolithic array of light-emitting elements with the integrated body comprising the array of catadioptric optical elements;
- wherein the plurality of light-emitting elements that are selectively removed from the monolithic array are selected such that, in at least one direction, for at least one pair of the selectively removed light-emitting elements in the at least one direction, for each respective pair there is at least one respective light-emitting element that is not selected that was positioned in the monolithic array between the pair of selectively removed light-emitting elements in the at least one direction.
6 more elements
An illumination apparatus, comprising:
- a plurality of light-emitting elements from a monolithic wafer mounted on a substrate and arranged in an array with their original monolithic wafer positions and orientations relative to each other preserved;
- and
- a separate integrated optical body comprising a plurality of catadioptric optical elements arranged in an array;
- wherein the substrate comprising the light-emitting element array is aligned with the integrated optical body comprising the catadioptric optical element array such that the light-emitting elements are aligned with the catadioptric optical elements;
- wherein in at least one direction, for at least one pair of the plurality of light-emitting elements in the at least one direction, for each respective pair there was at least one respective light-emitting element in the monolithic wafer that was positioned in the monolithic wafer between the pair of light-emitting elements in the at least one direction and that is not positioned between them in the array of light-emitting elements.
2 more elements
Dependencies are inferred from the claim text.