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US 11,629,847 B2Granted
Illumination apparatus
AssigneeOptovate Limited
InventorsJonathan Harrold, Graham J. Woodgate
Life of this patent
Estimating the term…
Abstract
An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.
Claims20
A method for manufacturing an illumination apparatus comprising:
- forming a first monolithic array of light-emitting elements;
- selectively removing a plurality of the light-emitting elements whose relative positions in the first monolithic array correspond to desired relative positions in a desired non-monolithic array of light-emitting elements, the selective removing being performed in a manner that preserves the relative spatial position of the selectively removed light-emitting 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 removed light-emitting elements in the at least one direction;
- forming the desired non-monolithic array on a side of a substrate using the selectively removed light-emitting elements, in a manner that preserves the relative spatial position of the selectively removed light-emitting elements;
- and
- forming a plurality of electronic control components on the side of the substrate such that at least one of the plurality of electronic control components is positioned between a first pair of adjacent light-emitting elements of the non-monolithic array, and at least another one of the plurality of electronic control components is positioned between a different second pair of adjacent light-emitting elements of the non-monolithic array, wherein each of the plurality of electronic control components is for controlling at least one of the light-emitting elements of the non-monolithic array.
2 more elements
Dependencies are inferred from the claim text.