CN201237165Y

CN201237165Y - Lens type reflecting cup

Info

Publication number: CN201237165Y
Application number: CNU2008201465557U
Authority: CN
Inventors: 陈敬新
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-08
Filing date: 2008-08-08
Publication date: 2009-05-13
Anticipated expiration: 2018-08-08

Abstract

The utility model discloses a lens-type reflective cup, which comprises a lens. A cambered insertion hole for a fixed light source is formed in the center of a spherical surface at the bottom part of the lens; the edge of the top part of the lens is a convex surface, the center thereof is a concave spherical surface plated with a reflective film; and the concave spherical surface and the insertion hole of the fixed light source are positioned on an identical straight line. Compared with the prior art, in the utility model, reflective films are arranged on the spherical surface at the bottom part of the lens and on the concave spherical surface in the center of the top part of the lens, so as to enable light rays to be fully utilized, thereby avoiding the waste of the light rays, and improving the utilization rate of the light rays. Furthermore, the reflective film in the center of the top part of the reflective cup of the lens can occlude the injury of the strong light of an LED chip to eyesight of human bodies.

Description

The lens type reflector

Technical field:

The utility model relates to lighting apparatus, specifically is the lens type reflector that is used for reflecting condensation in a kind of normal lighting.

Background technology:

The reflector of existing lighting apparatus generally is designed to bowl-shape, and its inwall is coated with reflectance coating, is mainly used in optically focused, light is assembled by same direction through the reflection back penetrated, and increases the light reflection to reach, and reduces light loss, improves the purpose of light utilization efficiency.And the light that common reflector just sends light source carries out reflection once, has only part light to be utilized effectively like this, and most of light then is wasted, and the light source utilization ratio is low.

The utility model content:

For improving the utilization rate of light source, the purpose of this utility model is to provide a kind of lens type reflector, the light that this reflector can make light source send repeatedly reflects, can carry out secondary reshaping to emission light simultaneously, and finally launch by same direction, improved the illuminating effect of the utilization rate of light greatly.

For achieving the above object, the utility model adopts following technical scheme:

A kind of lens type reflector, comprise lens (1), sphere (2) center, described lens (1) bottom is provided with the arc embedded hole (201) of fixed light source, lens (1) top is convex surface (3), the center is the spill sphere (301) that is coated with reflectance coating, and this spill sphere (301) is located along the same line with the embedded hole (201) of fixed light source.

Be coated with reflectance coating on described lens (1) the bottom spheres (2).

Be fixed with LED illuminator (4) in the embedded hole of described fixed light source (201).

The exterior annular plane of described lens (1) top convex surfaces (3) is provided with a plurality of perforation (302).

The utlity model has following beneficial effect:

During sphere centre place, lens bottoms light source luminescent, part light direct irradiation is on the reflectance coating of lens top center spill sphere, after reflection, arrive lens bottom spheric reflection film, secondary reflection again through lens bottom spheric reflection film, part light sends along exit direction, other a part of light is then again on the reflectance coating of reflected back spill sphere, thereby circulation is carried out, form the N secondary reflection, avoided the waste of light, and all light are all sent along exit direction, improved the utilization rate of light, and lens reflector top center reflectance coating can block the led chip high light infringement that the human body eyesight is caused.

Description of drawings:

Fig. 1 is the utility model front view.

Fig. 2 is the utility model side sectional view.

Fig. 3 is the utility model operation principle schematic diagram.

Identifier declaration among the figure: lens 1, bottom sphere 2, embedded hole 201, top convex surface 3, spill sphere 301, perforation 302, LED illuminator 4.

The specific embodiment:

Core concept of the present utility model is: the utility model adopts concave-convex lens as reflector, and at sphere centre place, the bottom of concave-convex lens fixed installation LED illuminator, be provided with a spill sphere that is coated with reflectance coating at lens top center concave surface, spill sphere and LED illuminator are located along the same line, when the LED illuminator is luminous, the light portion that is sent reflexes on the bottom spheric reflection film through spill spheric reflection film, and repeatedly reflection of formation between the two, and light is sent by exit direction, and lens reflector top center reflectance coating can block the led chip high light infringement that the human body eyesight is caused.

As Fig. 1～shown in Figure 2, a kind of lens type reflector, comprise lens 1, lens 1 bottom sphere 2 centers are provided with the embedded hole 201 of fixed light source, lens 1 top is a convex surface 3, the center is the spill sphere 301 that is coated with reflectance coating, and this spill sphere 301 is located along the same line with the embedded hole 201 of fixed light source.

The dual-side of wherein said embedded hole 201 is provided with the installation screens, 4 of LED illuminators are fixed in the embedded hole 201 by this installation screens, lens 1 top is a convex surface 3, this convex surface 3 has optically focused and shaping operation, light by this convex surface 3 can produce gathering, lens 1 top center is the spill sphere 301 that is coated with reflectance coating, and the concave part of this spill sphere 301 is coated with reflectance coating, and light by this spill sphere 301 spread reflection can take place.

In addition, the land portions of lens 1 bottom sphere 2 also is coated with reflectance coating, the light that the LED illuminator can be sent by this reflectance coating reflects away, and the outside of lens 1 top convex surface 3 is the plane of an annular, be evenly distributed with a plurality of perforation 302 on this planar annular, can fixedly mount the auxiliary LED light source in this perforation 302.

Here need to prove that the led light source chip that is fixedly mounted in the utility model in the embedded hole 201 can be designed to different shapes as required, and the hot spot that penetrates behind this reflector of process also is a corresponding shape.

As shown in Figure 3, the utility model operation principle is: the light beam a that LED illuminator 4 sends, shine directly on the reflectance coating of spill sphere 301, according to reflection of light, the reflection ray of light beam a then can be got on lens 1 bottom sphere 2 reflectance coatings, will produce light beam b and light beam c like this, light beam b then penetrates from the lens 1 top convex surface 3 with optically focused effect, light beam c then reflects once more, and on the reflectance coating of reflected back spill sphere 301, change transmit direction through the reflection back, and, produce light beam d and light beam e once more through the reflection of bottom sphere 2 reflectance coatings, light beam d penetrates from lens 1 top concave surface 3, light beam e then reflexes on the top concave surface 3, through above repeatedly reflection, and the light beam of all generations can both be penetrated from lens 1 top convex surface 3.

Hence one can see that, and the light that the LED illuminator sends has carried out the N secondary reflection in the reflection from lens cup, and all light is penetrated via same direction, so this reflector can avoid the waste of light, improved the utilization rate of light greatly.

More than a kind of lens type reflector provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims

1, a kind of lens type reflector, comprise lens (1), it is characterized in that: sphere (2) center, lens (1) bottom is provided with the arc embedded hole (201) of fixed light source, lens (1) top is convex surface (3), the center is the spill sphere (301) that is coated with reflectance coating, and this spill sphere (301) is located along the same line with the embedded hole (201) of fixed light source.

2, lens type reflector according to claim 1 is characterized in that: be coated with reflectance coating on described lens (1) the bottom spheres (2).

3, lens type reflector according to claim 1 is characterized in that: be fixed with LED illuminator (4) in the embedded hole of described fixed light source (201).

4, lens type reflector according to claim 1 is characterized in that: the exterior annular plane of described lens (1) top convex surfaces (3) is provided with a plurality of perforation (302).