Illuminator assembly
First Claim
Patent Images
1. An apparatus, comprising:
- a lens having a light entrance end forming a recess defining a concave surface, wherein the lens is a non-imaging lens or a total internal reflection lens (TIR) configured to radiate optical radiation received at the concave surface;
a lens holder extending about the concave surface of the recess to receive the light entrance end of the lens;
a heat sink having an end portion facing the recess; and
a light source positioned to transmit light having a predetermined wavelength via the concave surface of the recess into the lens;
wherein the light source is in thermal communication with the heat sink to conduct heat generated by the light source to the heat sink; and
wherein the lens holder defines an inner wall that tapers in a direction toward the heat sink, the lens defining an outer surface that also tapers toward the heat sink and extends about the concave surface of the recess and in adjacent relation to the lens holder inner wall.
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Accused Products
Abstract
An apparatus includes a lens having a light entrance end forming a recess defining a concave surface, a heat sink having an end portion facing the recess and a light source positioned to transmit light having a predetermined wavelength via the concave surface of the recess into the lens. The lens may be a non-imaging lens or a total internal reflection lens (TIR) configured to radiate optical radiation received at the concave surface. The light source is in thermal communication with the heat sink to conduct heat generated by the light source to the heat sink.
59 Citations
35 Claims
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1. An apparatus, comprising:
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a lens having a light entrance end forming a recess defining a concave surface, wherein the lens is a non-imaging lens or a total internal reflection lens (TIR) configured to radiate optical radiation received at the concave surface; a lens holder extending about the concave surface of the recess to receive the light entrance end of the lens; a heat sink having an end portion facing the recess; and a light source positioned to transmit light having a predetermined wavelength via the concave surface of the recess into the lens; wherein the light source is in thermal communication with the heat sink to conduct heat generated by the light source to the heat sink; and wherein the lens holder defines an inner wall that tapers in a direction toward the heat sink, the lens defining an outer surface that also tapers toward the heat sink and extends about the concave surface of the recess and in adjacent relation to the lens holder inner wall.
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2. An apparatus, comprising:
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a lens having a light entrance end forming a recess defining a concave surface, the lens being a non-imaging lens or a total internal reflection (TIR) lens configured to radiate collimated optical radiation therethrough, the lens further comprising a rearward portion extending about the lens recess and defining an outer surface tapering to a smaller diameter; and a lens holder comprising a front portion extending about the lens recess, the front portion defining a first cavity for receiving the light entrance end of the lens, and a rear portion defining a second cavity to receive the end portion of a heat sink therein, the lens holder defining an inner wall therein tapering to a smaller diameter in a direction from the front portion of the lens holder to the rear portion of the lens holder; wherein the tapered outer surface of the lens further extends into the rear portion of the lens holder and the tapered outer surface of the lens is oriented in adjacent relation to the tapered inner wall of the lens holder. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus, comprising:
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a lens having a light entrance end forming a recess defining a concave surface, the lens being a non-imaging lens or a total internal reflection (TIR) lens configured to radiate collimated optical radiation therethrough, the lens further comprising a rearward portion extending about the lens recess and defining an outer surface tapering to a smaller diameter; and a lens holder comprising a front portion extending about the lens recess, the front portion defining a first cavity for receiving the light entrance end of the lens, and a rear portion defining a second cavity to receive the end portion of a heat sink therein, the lens holder defining an inner wall therein tapering to a smaller diameter in a direction from the front portion of the lens holder to the rear portion of the lens holder; wherein the tapered outer surface of the lens further extends into the rear portion of the lens holder and the tapered outer surface of the lens is oriented in adjacent relation to the tapered inner wall of the lens holder; a light source facing the light entrance end of the lens to transmit light having a predetermined wavelength via the lens recess into the lens; an annular interface board located on an end portion of a heat sink to receive the light source in a central aperture defined by the annular interface board; and a metallic film formed on the interface board, wherein the light source is electrically connected to the metallic film formed on the interface board. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus, comprising:
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a lens having a light entrance end forming a recess defining a concave surface, the lens being a non-imaging lens or a total internal reflection (TIR) lens configured to radiate collimated optical radiation therethrough, the lens further comprising a rearward portion extending about the lens recess and defining an outer surface tapering to a smaller diameter; and a lens holder comprising a front portion extending about the lens recess, the front portion defining a first cavity for receiving the light entrance end of the lens, and a rear portion defining a second cavity to receive the end portion of a heat sink therein, the lens holder defining an inner wall therein tapering to a smaller diameter in a direction from the front portion of the lens holder to the rear portion of the lens holder; wherein the tapered outer surface of the lens further extends into the rear portion of the lens holder and the tapered outer surface of the lens is oriented in adjacent relation to the tapered inner wall of the lens holder; a light source facing the light entrance end of the lens to transmit light having a predetermined wavelength via the lens recess into the lens; and an annular interface board located on an end portion of a heat sink to receive the light source in a central aperture defined by the annular interface board; wherein the interface board comprises at least one conductive pad formed on a surface thereof, and wherein electrical current is supplied to the light source through the interface board via the conductive pad. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification