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Optical imaging transmitter with brightness enhancement

  • US 10,222,475 B2
  • Filed: 05/14/2018
  • Issued: 03/05/2019
  • Est. Priority Date: 05/15/2017
  • Status: Active Grant
First Claim
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1. An optical system for performing distance measurements, the optical system comprising:

  • a bulk transmitter optic;

    an illumination source comprising a plurality of light emitters aligned to project discrete beams of light through the bulk transmitter optic into a field ahead of the optical system; and

    a micro-optic channel array disposed between the illumination source and the bulk transmitter optic, the micro-optic channel array defining a plurality of micro-optic channels, each micro-optic channel including a micro-optic lens spaced apart from a light emitter from the plurality of light emitters with the micro-optic lens being configured to receive a light cone from the light emitter and generate a reduced-size spot image of the emitter at a focal point displaced from the emitter at a location between the emitter and the bulk transmitter optic.

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