INVERSE VISIBLE SPECTRUM LIGHT AND BROAD SPECTRUM LIGHT SOURCE FOR ENHANCED VISION

摘要

A visible light spectrum and light source apparatus are described that provide over 80% of their total radiant flux power within the 385 nm-530 nm and the 570 nm-800 nm spectral ranges, collectively. The objective of the light spectrum and apparatus is to improve the visibility and shape of a wider range of objects than is practical using conventional LED white light sources at similar radiant flux power conditions. The new light source can provide good Scotopic or Mesopic at low power levels compared to most other light sources for illumination and improved differential photopic color-range vision. One illustrative embodiment of this new spectrum and light source provides a full visible light spectrum with at least 6% of the highest peak radiant power of all wavelengths between 405 nm-730 nm, and another illustrative embodiment provides a similar full spectrum between 440 nm and 730 nm. In both embodiments, the peak radiant power wavelength in the 475-510 nm cyan spectral region or the red 600-680 nm spectral peak is at least 1.1-times the lowest relative radiant flux power in the 530-570 nm spectral region.

主权项

1. A cyan-boosted inverse spectrum light source, comprising a light source configured to generate a light output for enhanced scotopic and mesopic visual acuity, said light source comprising (i) an array of LEDs, or (ii) one or more LEDs and one or more spectrum converters operatively arranged to convert light emitted by at least one of the one or more LEDs;
wherein (i) the array of LEDs, or (ii) the one or more LEDs and the one or more spectrum converters, is constructed and arranged to produce a light output spectrum in said light output including radiant power peaks in the red spectral range of 610-710 nm, in the blue-violet spectral range of 365-465 nm, and in the cyan spectral range of 470-510 nm; and wherein the cyan-boosted light source is configured so that in the light output spectrum produced by (i) the array of LEDs, or (ii) the one or more LEDs and the one or more spectrum converters, the radiant power of the light output spectrum in each of (a) the red spectral range of 610-710 nm of said light output spectrum, (b) the blue-violet spectral range of 365-465 nm of said light output spectrum, and (c) the cyan spectral range of 470-510 nm of said light output spectrum, is greater by at least 10% than (d) the radiant power in the yellow-green spectral range of 530-570 nm of said light output spectrum.