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US 9,755,120 B2Granted
LED device having a dome lens
Assignee3M Innovative Properties Company
InventorsD. Scott Thompson, Fedja Kecman
Life of this patent
Estimating the term…
Abstract
A light emitting device comprises an LED die, a dome lens encapsulating the LED die, the dome lens having a first outer curved surface, and a photopolymerizable composition disposed on the dome lens. The photopolymerizable composition forms a meniscus lens defined by a second outer curved surface and an inner curved surface, the inner curved surface being in contact with only a portion of the first outer curved surface. The dome lens and the meniscus lens in combination form an elongated dome lens.
Claims15
A light emitting device, comprising:
- an LED die;
- a dome lens encapsulating the LED die against a substantially planar surface, the dome lens having a first outer curved surface;
- and
- a photopolymerizable composition disposed on the dome lens, the photopolymerizable composition forming a meniscus lens defined by a second outer curved surface and an inner curved surface, the inner curved surface being in contact with only a portion of the first outer curved surface and allowing a substantially circumferential outer portion of the dome lens to be exposed intermediate the meniscus lens and the substantially planar surface;
- wherein an edge of an outer surface of the meniscus lens is substantially flush, forming a smooth curvature, with an outer surface of the dome lens, such that the dome lens and the meniscus lens in combination form a continuous elongated dome lens;
- and
- wherein the photopolymerizable composition contacts no component of the light emitting device other than the dome lens.
4 more elements
A light emitting device, comprising:
- an LED die;
- a dome lens encapsulating the LED die against a substantially planar surface, the dome lens having a first outer curved surface;
- and
- a photopolymerized material disposed on the dome lens, the photopolymerized material forming a meniscus lens defined by a second outer curved surface and an inner curved surface, the inner curved surface being in contact with only a portion of the first outer curved surface and allowing a substantially circumferential outer portion of the dome lens to be exposed intermediate the meniscus lens and the substantially planar surface;
- wherein an edge of an outer surface of the meniscus lens is substantially flush, forming a smooth curvature, with an outer surface of the dome lens, such that the dome lens and the meniscus lens in combination form a continuous elongated dome lens;
- and
- wherein the photopolymerized material contacts no component of the light emitting device other than the dome lens.
4 more elements
A light emitting device, comprising:
- an LED die disposed on a support structure;
- a dome lens encapsulating the LED die against a substantially planar top surface of the support structure, the dome lens contacting the support structure and having a first outer curved surface;
- and
- a photopolymerized material disposed on the dome lens, the photopolymerized material forming a meniscus lens defined by a second outer curved surface and an inner curved surface;
- wherein the photopolymerized material contacts the dome lens along the inner curved surface without contacting the support structure and wherein a substantially circumferential outer portion of the dome lens is exposed intermediate the meniscus lens and the substantially planar top surface;
- wherein an edge of an outer surface of the meniscus lens is substantially flush, forming a smooth curvature, with an outer surface of the dome lens, such that the dome lens and the meniscus lens in combination form a continuous elongated dome lens;
- and
- wherein the photopolymerized material contacts no component of the light emitting device other than the dome lens.
5 more elements
Dependencies are inferred from the claim text.