US 10,883,699 B2Granted

Lens combination and illumination device adopting the same

AssigneeOpple Lighting Co., Ltd.

InventorsChaobo Liu, Shitao Deng, Jing Yang, Jianguo Li, Xiufeng Shi, Cong Wang, Guoping Zhang, Jian Zhu, Kai Wang

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Abstract

The present disclosure provides a lens combination and an illumination device adopting the lens combination, where, the lens combination configured for accommodation at least a first light source and a second light source, includes: a first lens, including a first light incident surface, a first light emergent surface and a first accommodation space located on a side of the first light incident surface and configured for accommodating the first light source, where the first light incident surface and the first light emergent surface are of a curved surface shape; and a second lens, including a second light incident surface, a second light emergent surface, and a second accommodation space located on a side of the second light incident surface and configured for accommodating the second light source, where the second light incident surface and the second light emergent surface are of a curved surface shape.

Claims26

Dependent claims

A lens combination for accommodating at least a first light source and a second light source, comprising:

a first lens, comprising a first light incident surface, a first light emergent surface and a first accommodation space located on a side of the first light incident surface and configured for accommodating the first light source, wherein a curvature radius of the first light incident surface is larger than a curvature radius of the first light emergent surface;
and
a second lens, comprising a second light incident surface, a second light emergent surface, and a second accommodation space located on a side of the second light incident surface and configured for accommodating the second light source;
wherein an emergent light is obtained after an incident light emitted by a first light source passes through the first light incident surface and the first light emergent surface, and an incident light emitted by the second light source passes through the second light incident surface and the second light emergent surface;
wherein the first lens is a ring-shaped lens with a constant height and the second lens is located at a center of the first lens;
and
wherein the emergent light obtained after the incident light emitted by the first light source passes through the first light incident surface and all of the emergent light moves toward a center axis of the first light source.

4 more elements

An illumination device adopting lens combination, comprising:

a housing;
a light source module, located within the housing, the light source module comprising a substrate and a first light source and a second light source provided on the substrate;
and
a lens combination, comprising a base portion, and a first lens and a second lens provided on the base portion, the first lens being annular, and the second lens being annularly enclosed within the first lens;
wherein the base portion of the lens combination is integrated with the substrate and the housing of the light source module, the first lens and the second lens distribute light for the first light source and the second light source respectively, the first lens corresponds to at least one group of first lenses annularly arranged on the substrate, and the second lens corresponds to at least one second light source annularly enclosed within the first light source;
wherein the first lens comprises a first light incident surface and a first light emergent surface, and a curvature radius of the first light incident surface is larger than a curvature radius of the first light emergent surface;
wherein the first lens is a ring-shaped lens with a constant height and the second lens is located at a center of the first lens;
and
wherein light emitted from the first light source passes through the first lens so that all of the light moves toward a center axis of the first light source.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/956,678Filed 18 Apr 2018 · continuation
Priority: CN 2015 1 069714623 Oct 2015
Published: US 2018/0245771 A130 Aug 2018
Granted: 5 Jan 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

F21V 5/007
Refractors for light sources: array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one…
F21V 5/04
Refractors for light sources: of lens shape
F21V 5/043
Of lens shape: the lens having cylindrical faces, e.g. rod lenses, toric lenses
F21V 5/004
Using microoptical elements for redirecting or diffusing light: using microlenses