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Laser lighting having selective resolution

專利號
US11800077B2
公開日期
2023-10-24
申請人
KYOCERA SLD Laser, Inc.(US CA Goleta)
發(fā)明人
Vlad Joseph Novotny; Paul Rudy
IPC分類
H04N9/77; G02B27/01; G02B26/10; H04N9/31; F21K9/64
技術(shù)領(lǐng)域
phosphor,laser,scanning,mirror,eu.sup,in,un,color,patterned,light
地域: CA CA Goleta

摘要

In an example, the present invention provides an optical engine apparatus. The apparatus has a laser diode device, the laser diode device characterized by a wavelength ranging from 300 to 2000 nm or any variations thereof. In an example, the apparatus has a lens coupled to an output of the laser diode device and a scanning mirror device operably coupled to the laser diode device. In an example, the apparatus has an un-patterned phosphor plate coupled to the scanning mirror and configured with the laser device; and a spatial image formed on a portion of the un-patterned phosphor plate configured by a modulation of the laser and movement of the scanning mirror device.

說明書

According to an example, a projection apparatus is provided. The projection apparatus includes a housing having an aperture. The apparatus also includes an input interface 110 for receiving one or more frames of images. The apparatus includes a video processing module 120. Additionally, the apparatus includes a laser source. The laser source includes a blue laser diode 131, a green laser diode 132, and a red laser diode 133. The blue laser diode is fabricated on a nonpolar or semipolar oriented Ga-containing substrate and has a peak operation wavelength of about 430 to 480 nm, although other wavelengths can be used. The green laser diode is fabricated on a nonpolar or semipolar oriented Ga-containing substrate and has a peak operation wavelength of about 490 nm to 540 nm. The red laser could be fabricated from AlInGaP with wavelengths 610 to 700 nm. The laser source is configured to produce a laser beam by combining outputs from the blue, green, and red laser diodes using dichroic mirrors 142 and 143. The apparatus also includes a laser driver module 150 coupled to the laser source. The laser driver module generates three drive currents based on a pixel from the one or more frames of images. Each of the three drive currents is adapted to drive a laser diode. The apparatus also includes a Micro-Electro-Mechanical System (MEMS) scanning mirror 160, or “flying mirror”, configured to project the laser beam to a specific location through the aperture resulting in a single picture 170. By rastering the pixel in two dimensions, a complete image is formed. The apparatus includes an optical member provided within proximity of the laser source, the optical member being adapted to direct the laser beam to the MEMS scanning mirror. The apparatus includes a power source electrically coupled to the laser source and the MEMS scanning mirror.

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