JP3161276U - Ultra high power wide angle reflector structure - Google Patents

Abstract

An ultra-high power wide-angle reflector structure that can be adapted to the lighting requirements of various roads that want to distribute light laterally, and that makes the illuminance of the irradiated area even more uniform. A reflective cup, a metal heat sink, and a heat conducting base are used. A light reflection member is provided in the reflection cup, and the light reflection member 4 has a curved surface, and reflects light rays that are too strong in the middle due to the characteristic of emitting light in front of the LED to the side by the curved surface of the light reflection member. The reflecting cup is provided with a light exit surface 12 having an inclination, whereby the light beam is emitted at a large angle, and total reflection of the light beam does not occur and no light is lost. In addition, the light exit surface is provided with a refractor whose output angle can be adjusted, and the refractor has a plane with a refraction angle of 0, or a plurality of geometric protrusions formed by slopes with different angles or curved surfaces with different angles. By providing the member 51, various refraction angles are obtained and various emission angles are realized. [Selection] Figure 1

Description

The present invention relates to an ultra-high power wide-angle reflector structure. More specifically, the reflection cup is provided with a light-emitting surface having an inclination, and a light-reflecting body having an adjustable emission angle is provided on the light-emitting surface, thereby laterally transmitting light. The present invention relates to an ultra-high power wide-angle reflector structure that can be adapted to the lighting requirements of various roads that are desired to be distributed, and that makes the illuminance of the irradiated region more uniform.

A conventional LED lamp has a reflection corresponding to the planar light-emitting characteristics of the LED on the outer edge of its metal heat sink, as disclosed in, for example, the announcement of Dec. 21, 1997, No. M347680, “Ultra High Power Package Structure”. A cup is provided, a light reflection curved surface is provided in the reflection cup, and various light projection distributions are obtained by changing the curvature of light. Moreover, in the "wide reflector structure" of the Republic of China No. 98204196, a light reflecting member is provided in the reflecting cup, the light reflecting member has a curved surface, and is a light beam that is intermediate and too strong due to the characteristic of emitting light in front of the LED. Is laterally reflected by the curved surface of the light reflecting member to increase the width of the light irradiation region. However, the light exit of the two reflection cups described above is a horizontal plane, and part of the light is likely to be totally reflected by the mirror surface provided at the light exit, and the side wall surface of the reflection cup is shielded from the irradiated light. The angle becomes narrow, the luminance is low, and the luminous efficiency is poor. In view of the above problems, the problem to be solved by the present inventor is to eliminate the above-mentioned drawbacks below.

Taiwan Patent No. M347680 specification Taiwan Patent No. 98204196 Specification

The present invention is adapted to meet the lighting requirements of various roads where light is to be distributed laterally by providing a light emitting surface with an inclination on the reflecting cup and providing a refractive body with an adjustable emission angle on the light emitting surface. An object of the present invention is to provide an ultra-high power wide-angle reflector structure that can make the illuminance of the irradiated region more uniform.

To achieve the above object, the ultra-high power wide-angle reflector structure according to the present invention includes a reflective cup, a metal heat sink, and a heat conducting base. A light reflection member is provided in the reflection cup, and the light reflection member has a curved surface, and reflects an intermediate too strong light beam due to the characteristic of emitting light in front of the LED by the curved surface of the light reflection member. The reflecting cup is provided with a light-emitting surface having an inclination, so that the light beam is emitted at a large angle, so that total reflection of the light beam does not occur and no light is lost. In addition, the light exit surface is provided with a refractor whose output angle can be adjusted, and the refractor has a plane with a refraction angle of 0, or a plurality of geometric protrusions formed by slopes with different angles or curved surfaces with different angles. By providing a member, it is possible to obtain various refraction angles, realize various emission angles, and adapt to the requirement to distribute light laterally, make the illumination area illuminated more uniform, It achieves high luminous efficiency and energy saving, and can meet the demands of various lighting standards.

It is a perspective view which shows the external appearance of Example 1 of this invention. It is an exploded view which shows the structure of Example 1 of this invention. It is sectional drawing of Example 1 of this invention. It is a perspective view which shows the external appearance of Example 2 of this invention.

Example 1
As shown in FIGS. 1 and 2, the ultra-high power wide-angle reflector structure according to the present invention includes a reflective cup 1, a metal heat sink 2, and a heat conducting base 3. The inside of the reflecting cup 1 is a highly reflective surface 11, and a light reflecting member 4 is provided in the reflecting cup 1, and the light reflecting member 4 has a curved surface 41, and is a light beam that is too strong in the middle due to the characteristic of emitting light in front of the LED. Is reflected horizontally by the curved surface 41 of the light reflecting member 4. The reflecting cup 1 is provided with a light exit surface 12 having an inclination, so that the light beam is emitted at a large angle without colliding with the high reflectivity surface 11, so that total reflection of the light beam does not occur and no light is lost. Further, the light exit surface 12 is provided with a refracting body 5 that can adjust the emission angle. The refracting body 5 includes a plurality of geometric projecting members 51 formed by inclined surfaces having different angles to obtain different refraction angles. be able to.

As shown in FIG. 3, a part of the light beam in the reflection cup 1 of the ultra-high power wide-angle reflector structure according to the present invention is reflected by the light reflecting member 4 on the light emitting surface 12, and the remaining light rays are reflected on the light emitting surface. The light is refracted by the twelve refractors 5, and the emission angle can be greatly widened to adapt to the demand to distribute light laterally, and the illuminance of the irradiated region is made more uniform. Further, in the design of the light exit surface 12 having the inclination according to the present invention, the incident angle is much smaller than the critical angle of total reflection, the light beam easily passes through the refractor 5, a part of the light beam does not cause total reflection, and the light is not reflected. Loss can be prevented. Therefore, when used as a lighting fixture, it is possible to effectively improve the luminance, achieve high luminous efficiency and energy saving, and meet the requirements of lighting standards.

(Example 2)
As shown in FIG. 4, the reflection cup 1 of the ultra-high power wide-angle reflector structure according to the second embodiment of the present invention is provided with a light-emitting surface 12 having an inclination, so that light rays are emitted at a large angle and all of the light rays are emitted. There is no reflection and no light is lost. In addition, a refracting body 6 whose exit angle can be adjusted is provided on the light exit surface 12, and the surface of the refracting body 6 is a plane having a refraction angle of 0.

1 Reflection cup 2 Metal heat sink
3 Heat conduction base
4 Light reflecting member
5, 6 Refraction body
11 High reflectivity surface 12 Light exit surface 41 Curved surface
51 Geometrical protruding member

Claims (2)

In the ultra-high power wide-angle reflector structure composed of a reflective cup, a metal heat sink, and a heat conducting base,
A light reflection member is provided in the reflection cup, the light reflection member has a curved surface, and an intermediate too strong light beam due to the property of emitting light in front of the LED is reflected sideways by the curved surface of the light reflection member,
Further, the reflecting cup is provided with a light outgoing surface having an inclination, and the light outgoing surface is provided with a refractor whose emission angle can be adjusted,
The refracting body can achieve various refraction angles by providing a plurality of geometric projecting members that are formed by planes having a refraction angle of 0, or formed by inclined surfaces having different angles or curved surfaces having different angles. An ultra-high power wide-angle reflector structure that features an emission angle. The ultra-high power wide-angle reflector structure according to claim 1, wherein the inside of the reflective cup is a highly reflective surface.

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