CN203810143U

CN203810143U - CECPC structure alignment LED light source

Info

Publication number: CN203810143U
Application number: CN201420220672.9U
Authority: CN
Inventors: 张航; 符建; 张元玲
Original assignee: HANGZHOU GUANGZHUI TECHNOLOGY Co Ltd
Current assignee: Zhejiang Guangcone Technology Co ltd
Priority date: 2014-04-30
Filing date: 2014-04-30
Publication date: 2014-09-03
Anticipated expiration: 2024-04-30

Abstract

The utility model discloses a CECPC structure alignment LED light source which comprises an LED chip, a CEC lens and a CPC lens. The CEC lens is a semi-ellipsoid lens, and the ellipsoid tangent plane passes two focus points. The CPC lens is a semi-paraboloid lens, one end of the lens is a paraboloid, the other end of the lens is a plane, and the tangent plane of the lens passes the symmetrical shaft of the paraboloid. The paraboloid focus point of the CPC lens coincides with one focus point of the ellipsoid plane of the CEC lens. The opening of the paraboloid faces outwardly. An LED chip is located at the other focus point of the paraboloid. A light source surface faces the CEC lens. The CECPC structure alignment LED light source has the advantages that by utilizing the light refraction and reflection principles of the paraboloid and the ellipsoid, the divergent light of the LED chip is condensed, and alignment and light condensing effects are achieved.

Description

A kind of CECPC structural alignment LED light source

Technical field

The utility model relates to a kind of LED light source, relates in particular to a kind of CECPC structural alignment LED light source.

Background technology

Energy-conserving and environment-protective in recent years, start the fundamental policies that low-carbon (LC) society has become countries in the world, LED light source, as new generation of green lighting source, has demonstrated the unrivaled good characteristic of conventional light source aspect energy-saving and environmental protection, is widely used in road, square, the occasion such as indoor.

Than traditional thermal light source, LED has very large advantage on light emission direction: the luminous luminous intensity distribution difficulty of having saved half that means of face, when we need certain directional light, LED 180 degree is luminous can be well more a lot of than conventional light source, as long as conventionally add a light-distribution lens, just can play to a certain extent the effect of collimation.But traditional light-configuration mode can only change luminous angle haply, narrow down to very littlely, conventionally can waste a lot of scattered lights, the utilization rate of light is not high, and far apart than the low-angle of laser.

For the people that require in application, wish that the low-angle light source that can realize LED high usage is to replace the expensive price of laser, the light-configuration mode that can realize LED high usage and low-angle collimation so a kind of is required by people.

Summary of the invention

The purpose of this utility model is for the deficiencies in the prior art, and a kind of CECPC structural alignment LED light source is provided.

The purpose of this utility model is achieved through the following technical solutions: a kind of CECPC structural alignment LED light source, comprises LED chip, CEC lens, CPC lens; CEC lens are semielliptical lens, and ellipsoid tangent plane is through two focuses; CPC lens are half paraboloid lens, and one end is parabola, and the other end is plane, and tangent plane is through parabola symmetry axis; CPC lens parabolic focus overlaps with CEC lens ellipsoid one focus, and outwardly, LED chip is fixed on CEC lens parabola opening, and its surface of light source is positioned at another focus place of CEC lens ellipsoid, and surface of light source is towards CEC lens;

Further, CEC lens and CPC lens be connected to seamless link, there is no space;

Further, the light output end of CPC lens is one or more combinations of plane, protruding sphere, Fresnel lens face and free nonreentrant surface.

Further, CEC lens and CPC lens are the integral body without optical interface;

Further, the ellipsoid surface of CEC lens scribbles reflectance coating.

Further, CPC lens scribble reflectance coating except light output end with all or part of region, surface the contact-making surface of CEC lens.

The beneficial effects of the utility model are, the utility model is by a kind of design of CECPC structure, utilize the optical characteristics of ellipsoid and light that paraboloidal optical characteristics is sent LED chip to collimate, and the LED light of dispersing is pooled to our needed degree.Although the collimation than laser also has certain distance, the same price than laser costliness to a certain extent LED has sizable advantage because of its stability and cheapness.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of CECPC structural alignment LED light source;

Fig. 2 is a kind of CECPC structural alignment LED light source light conduction schematic diagram;

In figure, LED chip 1, CEC lens 2, CPC lens 3.

The specific embodiment

As shown in Figure 1, a kind of CECPC structural alignment LED light source, comprises LED chip 1, CEC lens 2, CPC lens 3; CEC lens 2 are semielliptical lens, and ellipsoid tangent plane is through two focuses; CPC lens 3 are half paraboloid lens, and one end is parabola, and the other end is plane, and tangent plane is through parabola symmetry axis; CPC lens 3 parabolic focus overlap with CEC lens 2 ellipsoid one focuses, and outwardly, LED chip 1 is fixed on CEC lens 2 parabola opening, and its surface of light source is positioned at another focus place of CEC lens 2 ellipsoids, and surface of light source is towards CEC lens 2.

Described CEC lens 2 and CPC lens 3 be connected to seamless link, there is no space.

Described CEC lens 2 and CPC lens 3 can be the integral body without optical interface.

The light output end of described CPC lens is one or more combinations of plane, protruding sphere, Fresnel lens face and free nonreentrant surface.

Described LED chip 1 is fixed on CEC lens 2 in the mode of encapsulation or external stability bonding.

The ellipsoid surface of described CEC lens 2 scribbles reflectance coating.

Described CPC lens 3 scribble reflectance coating except light output end with all or part of region, surface the contact-making surface of CEC lens 2.

The beam angle of described CECPC structural alignment LED light source can be controlled by size and the curvature of LED chip 1, CEC lens 2, CPC lens 3.

As shown in Figure 2, according to ellipsoid principle: the light sending from ellipsoid one focus can be through another focus of ellipsoid after ellipsoid reflection.So after the light incident CEC lens 2 that LED chip 1 sends, penetrate from another focus through ellipsoid reflection.According to parabola principle: the light sending from parabola is parallel with paraboloidal symmetry axis after parabolic reflector.Because the paraboloidal focus of CPC lens 3 overlaps with a focus of ellipsoid, so the light that LED chip 1 sends converges to parabolic focus, through parabolic reflector, send directional light more again, reached the object of collimation.

Claims

1. a CECPC structural alignment LED light source, is characterized in that, comprises that LED chip (1), CEC lens (2), CPC lens (3), CEC lens (2) are semielliptical lens, and ellipsoid tangent plane is through two focuses; CPC lens (3) are half paraboloid lens, and one end is parabola, and the other end is plane, and tangent plane is through parabola symmetry axis; CPC lens (3) parabolic focus overlaps with CEC lens (2) ellipsoid one focus, parabola opening outwardly, LED chip (1) is fixed on CEC lens (2), its surface of light source is positioned at another focus place of CEC lens (2) ellipsoid, and surface of light source is towards CEC lens (2).

2. a kind of CECPC structural alignment LED light source according to claim 1, is characterized in that, described CEC lens (2) and CPC lens (3) be connected to seamless link, there is no space.

3. a kind of CECPC structural alignment LED light source according to claim 1, is characterized in that, the light output end of described CPC lens (3) is one or more combinations of plane, protruding sphere, Fresnel lens face and free nonreentrant surface.

4. a kind of CECPC structural alignment LED light source according to claim 1, is characterized in that, described CEC lens (2) and CPC lens (3) are the integral body without optical interface.

5. a kind of CECPC structural alignment LED light source according to claim 1, is characterized in that, the ellipsoid surface of described CEC lens (2) scribbles reflectance coating.

6. a kind of CECPC structural alignment LED light source according to claim 1, is characterized in that, described CPC lens (3) scribble reflectance coating except light output end with all or part of region, surface the contact-making surface of CEC lens (2).