High power incoherent light source with laser array
First Claim
1. A light source comprising:
- a diode array for producing one or more individual laser lights, the diode array including at least one diode;
a combiner for combining the one or more laser lights;
an incoherence apparatus for rendering the combined laser light incoherent; and
an illuminator apparatus for focusing the incoherent combined light onto an image plane.
1 Assignment
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Accused Products
Abstract
A high power light source is provided. The light source includes one or more diodes that may produce relatively coherent light of a desired intensity. The diodes may be pulsed to provide light as desired. The light projected by the diodes passes through a combiner, which combines the light from the different diodes and passes the combined light to an incoherence apparatus. The incoherence apparatus may include a rotating surface relief phase device such as an optical hologram, a computer generated hologram, or a diffractive optical element with random phase modulation. The incoherence apparatus may include a rotating fiber conduit comprising a plurality of multifiber cores. The incoherence apparatus renders the combined light incoherent and passes it to an illuminator apparatus that focuses the incoherent combined light onto an image plane.
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Citations
24 Claims
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1. A light source comprising:
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a diode array for producing one or more individual laser lights, the diode array including at least one diode;
a combiner for combining the one or more laser lights;
an incoherence apparatus for rendering the combined laser light incoherent; and
an illuminator apparatus for focusing the incoherent combined light onto an image plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A projection system comprising:
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a light source including a diode array for producing one or more individual laser lights;
a combiner for combining the one or more laser lights;
a incoherence apparatus for rendering the combined laser light incoherent;
an illuminator apparatus for focusing the incoherent combined light onto an image plane;
a digital pixel panel for providing a sequence of digital mask images; and
a pulse source for pulsing the diodes of the diode array at a relatively high frequency in synchronism with the sequence of digital mask images. - View Dependent Claims (11, 12, 13, 14, 16, 17, 18, 19)
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15. A display system comprising:
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three diode light sources for producing three different colored lights;
a combiner for combining the three different colored lights and directing the combined light towards an image plane;
a controller for pulsing the three diode light sources to produce a colored image at the image plane.
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20. A method for projecting incoherent light, the method comprising:
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projecting light from at least one light source;
combining the light from the at least one light source;
rendering the combined light incoherent; and
focusing the incoherent combined light onto an image plane. - View Dependent Claims (21, 22, 23, 24)
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Specification