Optical pattern projection for lighting, marking and demarcation enhancement
First Claim
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1. An optical pattern projection apparatus for lighting, marking and demarcation enhancement, the optical pattern projection apparatus comprising:
- a. at least one optical light source for producing at least one light beam; and
b. at least one diffractive optical component for modulating at least one of a phase and an amplitude of said light beam to produce an illumination pattern for said lighting, marking and demarcation enhancement.
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Abstract
An optical pattern projection system and method use lasers and diffractive optical components to provide illumination and demarcation for airports, helipads, waterways, emergence route, pedestrian cross, as well as aid for search and rescue operations. The diffractive optical components produce an illumination pattern in the spatial domain and can use either passive or active optical elements.
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Citations
21 Claims
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1. An optical pattern projection apparatus for lighting, marking and demarcation enhancement, the optical pattern projection apparatus comprising:
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a. at least one optical light source for producing at least one light beam; and
b. at least one diffractive optical component for modulating at least one of a phase and an amplitude of said light beam to produce an illumination pattern for said lighting, marking and demarcation enhancement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for lighting, marking and demarcation enhancement, the method comprising:
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a. producing at least one light beam;
b. using at least one diffractive optical component to modulate at least one of a phase and an amplitude of said light beam to produce an illumination pattern for said lighting, marking and demarcation enhancement; and
c. projecting said illumination pattern into an area in which said lighting, marking and demarcation enhancement is provided. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification