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Synchronized pulse-enhanced dual light source

  • US 4,958,143 A
  • Filed: 03/01/1989
  • Issued: 09/18/1990
  • Est. Priority Date: 03/01/1989
  • Status: Expired due to Fees
First Claim
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1. Apparatus for enhancing an intermittent low intensity light source that is powered by a drive signal comprising:

  • a. a high intensity light source optically coupled with said low intensity light source so that at least some light from both sources is projected in a desired direction, said high intensity light having an instantaneous intensity that significantly exceeds the peak intensity of the low intensity light source; and

    b. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to produce a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.

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