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Addressable illuminator with eye-safety circuitry

  • US 9,232,592 B2
  • Filed: 04/22/2013
  • Issued: 01/05/2016
  • Est. Priority Date: 04/20/2012
  • Status: Active Grant
First Claim
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1. An optical illuminator, comprising:

  • at least two optical sources configured to be independently energized;

    a combined current source configured to deliver a shared total current, wherein the shared total current is determined by an eye-safe level of output power when only a single optical source is energized; and

    an electronic circuit including one or more switches for dividing distribution of the shared total current among zero or more of the optical sources, the electronic circuit being configured to generate an output power from a single optical source among the optical sources that is eye-safe when the shared total current is distributed to only the single optical source and to generate a combined optical power of two or more optical sources that is eye-safe when the shared total current is distributed to a combination of two or more optical sources.

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