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LED total-reflection lens and LED line source

A technology of total reflection and total reflection surface, applied in refractors, lighting and heating equipment, lighting devices, etc., can solve the problem of easy control without light, and achieve the effect of reasonable main structure and cost reduction.

Active Publication Date: 2017-04-26
HASCO VISION TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Based on the above situation, among the existing solutions that can achieve a linear visual effect of uniform light emission, there is no light that is easy to control, and can obtain longer than light guide strips or LED light strips when using a small number of LEDs. Solutions for Linear Effects

Method used

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  • LED total-reflection lens and LED line source
  • LED total-reflection lens and LED line source
  • LED total-reflection lens and LED line source

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Embodiment Construction

[0047] The invention discloses an LED total reflection lens (lens for short), which is an integral polyhedron, such as Figure 4-14 As shown, the outline of its main body is composed of a cuboid I and two upper and lower 180-degree semi-conical frustums II and III, which are equal in size and completely attached to the lower bottom surface in the middle of the front of the cuboid. The superimposed body of the two 180-degree semi-conical frustums is similar to half a spindle. The so-called 180-degree semi-conical truncated cone refers to any part obtained by cutting with any plane passing through the axis of the truncated cone, and the arbitrary plane can be called a longitudinal plane. The longitudinal plane of the 180-degree semi-conical truncated cone fits with the front of the cuboid and neither left nor right exceeds the front of the cuboid. The upper and lower surfaces of the upper and lower 180-degree semi-conical frustums are respectively flush with the top and bottom ...

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Abstract

The invention relates to an LED total-reflection lens and an LED line source. The LED total-reflection lens is an integrated polyhedron of which the main body outline consists of a cuboid, as well as an upper 180-degree half circular truncated cone and a lower 180-degree half circular truncated cone which fit the front middle part of the cuboid and are of the same size, the lower bottom surfaces of the two half circular truncated cones completely fit each other, the upper bottom surfaces of the two half circular truncated cones are flush with the top surface and the bottom surface of the cuboid correspondingly, a total-reflective chamfer is arranged on each of the left side and the right side of the front face of the cuboid, a light incident plane and a reflective inner sunken face are formed in the centers of the top surface and the bottom surface of the polyhedron relatively and separately, a refraction hole is further formed in the cuboid, one or more through-hole total-reflection planes are formed between the refraction hole and each of the two chamfers on the left side and the right side, and the rear face of the cuboid is a light outgoing plane. The LED total-reflection lens can uniformly distribute Lambert-emitted LED light to achieve a uniform linear visual effect, and is high in light energy utilization ratio. The LED line source can achieve a longer-distance and uniform linear lighting effect by use of fewer LEDs.

Description

technical field [0001] The invention relates to an LED total reflection lens and an LED line light source. Background technique [0002] LED has long service life, low energy consumption and mature production technology, which can be produced and supplied on a large scale. At present, it is widely used in automotive lighting and decoration, road lighting, projectors, and indoor and outdoor lighting decoration. Since the luminous characteristics of most conventional LEDs are symmetrical Lambertian radiation, they cannot meet the optical requirements of various occasions. In order to meet the light efficiency and light distribution requirements of various occasions and improve the performance of the system, it is necessary to accurately control the secondary optical design of the light distribution of the LED, and reasonably distribute the light energy emitted by the LED chip. [0003] For the secondary optical design of LEDs, reflectors such as aluminum-plated reflective su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04
CPCF21V5/04
Inventor 牛磊何士群胡尚斌严辉陈嘉彬
Owner HASCO VISION TECHNOLOGY CO LTD
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