Flash module containing an array of reflector cups for phosphor-converted LEDs
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United States of America Patent
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May 12, 2020
Grant Date -
Jun 29, 2017
app pub date -
Jun 16, 2015
filing date -
Jun 17, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
In a thin flash module for a camera, a rectangular array of LEDs is mounted on a single lead frame. The lead frame connects the LEDs in series. The LEDs are much smaller than conventional LEDs in a flash module. The LEDs may be in 5×3 array or a 4×3 array, for example. An array of reflective cups is molded over the lead frame or attached to the lead frame, where each of the cups has a substantially square aperture to produce a square sub-beam. A layer of phosphor is located within each cup overlying its associated LED to produce white light. The aspect ratio of the array is selected to generally match the aspect ratio of the camera's field of view (e.g., 16:9). Since the LEDs are very small, the height of the cups may be small to form an ultra-thin flash module. Thin lenses may instead be used.
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