Speckle Reduction
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Jun 9, 2024
filing date -
Jun 9, 2024
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Abstract
A holographic projector comprising a display device, a laser diode chip and at least one optic. The display device is arranged to display a hologram of a picture. The laser diode chip comprising a plurality of emitters. Each emitter is arranged to form a respective beamlet. The beamlets are incoherent with each other such that they form different speckle patterns. The at least one optic is arranged to receive the plurality of beamlets and form a continuous beam in which beamlets of the plurality of beamlets at least partially overlap. The holographic projector is arranged to illuminate the hologram with the continuous beam and form a holographic reconstruction of the picture. The speckle patterns of the beamlets reduce noise in the holographic reconstruction through addition of intensity rather than amplitude and phase.
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