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Lens and lamp using same

A technology of lens and lamps, which is applied in the field of lighting to achieve the best light uniformity effect

Inactive Publication Date: 2015-03-18
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a lens and a lamp using the lens to solve the technical problems existing in the existing LED light source

Method used

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  • Lens and lamp using same
  • Lens and lamp using same
  • Lens and lamp using same

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 to Figure 4 , the first embodiment of the present invention provides a lens 20, which can be made of transparent materials, such as plastic or glass. The plastic can be PMMA (Polymethylmethacrylate), PC (Poly Carbonate, polycarbonate), or silicone.

[0024] The lens 20 generally presents an arc-shaped outer contour, which has a central axis M, that is, the lens 20 forms an axisymmetric structure with respect to the central axis M. ...

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Abstract

The invention relates to a lens with a central axis. The lens comprises a first light-entering surface, a second light-entering surface, a lateral side, a first light-emitting surface and a second light-emitting surface. The second light-entering surface surrounds the first light-entering and matches with the first light-entering surface to form a containing space to collect a luminescent source. The lateral side is a convex surface surrounding the central axis. The first light-emitting surface is a convex surface protruding along a direction faraway from the first light-entering surface and surrounding the central axis. The second light-emitting surface is a concave surface sinking along a direction near the first light-entering surface and surrounding the central axis. The lens is able to transmit the light in the central light area and the periphery light area of a light emitting diode separately, enables the light intensity in the central light area to be weakened but the light intensity in the periphery light area to be enhanced, and the lens obtains a uniform light field. A lamp has better light-emitting uniformity by adopting the lens.

Description

technical field [0001] The invention relates to the lighting field, in particular to a lens and a lamp using the lens. Background technique [0002] At present, with the maturity of light emitting diode (Light Emitting Diode, LED) chip and packaging technology, LED brightness requirements are sufficient to meet the needs of various lighting fields, and LED solid-state lighting has become a popular trend. It is energy-saving, environmentally friendly, safe, with high color rendering index, long life and other performance characteristics; at the same time, it also has notable characteristics such as small size, high luminous efficiency, and low energy consumption. With its obvious advantages, LED light sources are widely used in scientific research experiments, production, and various fields of life, such as roads, tunnels, landscapes, indoor homes, commercial advertisements, industrial manufacturing and other lighting applications. [0003] Unlike incandescent lamps, metal h...

Claims

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Application Information

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IPC IPC(8): F21V5/04
CPCF21V5/046F21Y2101/00
Inventor 周明杰乃业利
Owner OCEANKING DONGGUAN LIGHTING TECH