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Lens and light-emitting device with same

A light-emitting device and lens technology, which is applied in the direction of lighting devices, parts of lighting devices, semiconductor devices of light-emitting elements, etc., can solve the problems of poor overall light efficiency, uneven brightness and darkness of light spots, single lens, etc., and achieve good divergence or The effect of convergent aggregation

Inactive Publication Date: 2017-03-15
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the surface of the existing lens is often a single curved surface. When used for near-field light effects, the lens cannot adjust the light effect path only by its own structure, resulting in uneven brightness and darkness of some spots and poor overall light effect.

Method used

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  • Lens and light-emitting device with same
  • Lens and light-emitting device with same
  • Lens and light-emitting device with same

Examples

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Embodiment Construction

[0014] see figure 1 , the lens 100 provided by the first embodiment of the present invention is basically cylindrical. The lens 100 includes a bottom surface 31 and a light emitting surface 34 opposite to the bottom surface 31 . In this embodiment, the light-emitting surface 34 is flat, which is convenient for cleaning dust and other pollutants falling on the light-emitting surface 34 . The bottom surface 31 defines a receiving cavity 32 for receiving the light source 10 . The lens 100 further includes a light incident surface 33 opposite to the receiving cavity 32 , and the light incident surface 33 is disposed opposite to the light source 10 . The light incident surface 33 is formed by sequentially connecting multiple annular curved surfaces 331 , and the curved surfaces 331 are concave surfaces. In this embodiment, the light incident surface 33 is arranged symmetrically with respect to the central axis of the lens 100 . The inner diameters of the plurality of annular cu...

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Abstract

The invention relates to a lens. The lens includes a bottom surface and a light extraction surface opposite to the bottom surface; an accommodation cavity for holding a light source is formed in the bottom surface; the lens also includes a light incoming surface facing the accommodation cavity; the light incoming surface and the light extraction surface are arranged opposite to each other; and the light incoming surface is formed by successively and mutually connecting a plurality of circular curved surfaces. The invention also provides a light-emitting device with the lens.

Description

technical field [0001] The invention relates to a lens and a light-emitting device with the lens. Background technique [0002] Due to the ever-changing design of optical components and the various forms of LED light-emitting components, diversified products have been derived. Among them, the lens is used to change the circular light spot emitted by the LED light-emitting element into a long-shaped light spot, focusing and diffusing effects to meet the needs of various products. In the prior art, in order to achieve the effect of light diffusion or convergence, the surface of the lens is designed to be concave or convex. [0003] However, the surface of the existing lens is often a single curved surface. When used for near-field light effects, the lens cannot adjust the light effect path only by its own structure, resulting in uneven brightness and darkness of some spots and poor overall light effect. . Contents of the invention [0004] In view of this, it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21K9/69F21K9/20F21V19/00F21Y115/10
CPCF21V5/048F21V19/002
Inventor 邱柏瑾
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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