CN210291456U

CN210291456U - LED light-emitting unit adopting laser enhancement

Info

Publication number: CN210291456U
Application number: CN201921313686.4U
Authority: CN
Inventors: 沈国野
Original assignee: Zhejiang Biken Technology Co ltd
Current assignee: Zhejiang Biken Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-10
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses an adopt LED luminescence unit of laser reinforcing, including the base plate, the base plate top is equipped with the laser instrument, the base plate upper berth is equipped with the LED chipset, is equipped with ceramic phosphor powder piece on the LED chipset, ceramic phosphor powder piece with LED chipset is equipped with the single membrane that passes through of plating on ceramic phosphor powder piece between the groups, but the light of laser instrument transmission can be passed through the membrane reflection of single passing through behind the ceramic phosphor powder piece, the light that the LED chipset produced can pass single membrane and see through the ejection of ceramic phosphor powder piece. The LED light-emitting unit adopts the original light-emitting LED below the single transparent film as a main light source, and then the enhancement is realized by reflecting laser above the single transparent film, so that the brightness of the lighting unit is improved, the volume of lighting equipment is reduced, the requirement of high integration level is met, the whole function is complete, and the practicability is high.

Description

LED light-emitting unit adopting laser enhancement

Technical Field

The utility model relates to the field of lighting technology, more specifically say, it relates to an adopt LED luminescence unit of laser reinforcing.

Background

Although the single chip of the LED has low brightness and low energy density, the LED has a small volume and can meet different brightness requirements in a cascading manner with a plurality of chips, but the LED has the disadvantage that the light-emitting area of an LED light source is enlarged due to phase change, and a large optical structural member is required to meet the light distribution requirement of special illumination when the LED is applied to the field of special illumination.

In the light distribution process of special illumination, a light source is generally regarded as a point light source to simplify a mathematical model adopted by theoretical calculation, if the volume of special illumination equipment is reduced to meet the requirement of high integration, a light source which is much smaller than the external dimension of the special illumination equipment needs to be adopted, under the condition, an LED is difficult to meet the design requirement, and correspondingly, a laser light source can achieve a smaller light-emitting area and a higher energy density, but because of the limitation of the existing laser illumination technology, the power of the laser light source is not high, and the price is expensive.

In the existing laser lighting application, in order to improve the brightness of laser lighting, a mode similar to that of an LED is generally adopted, and light rays emitted by a plurality of laser light sources are converged to the same point by utilizing the characteristic that laser beams are concentrated, so as to meet the requirements of a smaller light emitting area and higher brightness. Therefore, the utility model provides an adopt LED luminescence unit of laser reinforcing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide an adopt LED luminescence unit of laser reinforcing, this LED luminescence unit adopts the original luminous LED in single diaphragm below as main light source, realizes the reinforcing by single diaphragm top reflection laser that passes again, reaches the luminance that improves lighting unit, reduces lighting apparatus's volume, satisfies the requirement of high integrated level.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to an adopt LED luminescence unit of laser reinforcing, including the base plate, the base plate top is equipped with the laser instrument, the base plate upper berth is equipped with the LED chipset, is equipped with ceramic phosphor powder piece on the LED chipset, ceramic phosphor powder piece with LED chipset is equipped with the single membrane that passes through of plating on ceramic phosphor powder piece, but the light of laser instrument transmission can be passed through the membrane reflection of single passing through behind the ceramic phosphor powder piece, the light that the LED chipset produced can pass single membrane and see through the ejection of ceramic phosphor powder piece.

The utility model discloses further set up to: the laser is a laser emitting blue laser, the LED chip group is a blue LED chip group, and the ceramic fluorescent powder sheet is a yellow ceramic fluorescent powder sheet.

The utility model discloses further set up to: the LED chip group comprises one or more LED chips, and the blue light emitted by the LED chips irradiates the yellow ceramic fluorescent powder sheet and then excites white light; the blue light emitted by the laser is reflected by the single-transmission film and is excited by the yellow ceramic fluorescent powder sheet to form white light, and the white light and the yellow ceramic fluorescent powder sheet are superposed.

The utility model discloses further set up to: the single-transmission film is made of heat-conducting materials which are high-temperature resistant, unidirectional in light transmission and high in back reflection.

The utility model discloses further set up to: the substrate is an aluminum nitride substrate.

To sum up, the utility model discloses following beneficial effect has:

1. the LED chip group is formed by a plurality of LED chips, so that the integral luminous flux of the lighting unit of the utility model is increased, and the lighting requirement of a larger area is met;

2. the LED light source is characterized in that one of light sources of the lighting unit is enhanced by laser emission, the original LED chip is assembled below the single transparent film, laser reflection is realized above the single transparent film, light rays of the single transparent film and the laser reflection are superposed, enhancement is realized, and the light intensity is better;

3. the LED light source group and the laser light source are integrated in the same lighting unit, the integration level is high, the original advantages of the LED light source are achieved, the advantages of the laser light source are achieved, the advantages of the LED light source are achieved, and the cost of the whole lighting unit is reduced while the advantages of the LED light source group and the laser light source are achieved;

4. the single-transmission film is made of a heat-conducting material which is high-temperature resistant, has one-way light transmission and high back reflection, so that a light source below the single-transmission film can normally transmit, and an upper light source can be reflected to reinforce the lower light source, so that light intensity superposition is realized, and the brightness is improved;

5. the substrate is an aluminum nitride substrate, and has good high heat-conducting property.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent requirements of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 3, the LED light-emitting unit using laser enhancement according to the present embodiment includes a substrate 1, a laser 2 is disposed above the substrate 1, an LED chip group 3 is disposed on the substrate 1, a ceramic phosphor sheet 4 is disposed on the LED chip group 3, a single transparent film 5 plated on the ceramic phosphor sheet 4 is disposed between the ceramic phosphor sheet 4 and the LED chip group 3, light emitted by the laser 2 can be reflected by the single transparent film 5 after passing through the ceramic phosphor sheet 4, and light generated by the LED chip group 3 can pass through the single transparent film 5 and be emitted through the ceramic phosphor sheet 4.

Further, the laser 2 is a laser emitting blue laser, the LED chip set 3 is a blue LED chip set, and the ceramic phosphor sheet 4 is a yellow ceramic phosphor sheet.

Further, the LED chip set 3 includes one or more LED chips, and blue light emitted therefrom irradiates the yellow ceramic phosphor powder sheet to excite white light; the blue light emitted by the laser 2 is reflected by the single-transmission film 5 and is excited by the yellow ceramic fluorescent powder sheet to form white light, and the white light and the yellow ceramic fluorescent powder sheet are superposed.

In the embodiment, the LED chip set 3 emits blue light after being powered on, the blue light passes through the single transparent film 5 and is excited by the yellow ceramic phosphor sheet to form white light, and meanwhile, the laser 2 emits blue laser which is reflected after being irradiated on the single transparent film 5 and is also excited by the yellow ceramic phosphor sheet to form white light, and two beams of white light are superposed to realize enhancement.

Furthermore, the single transparent film 5 is made of a heat-conducting material which is high-temperature resistant, has one-way light transmission and high back reflection, so that a light source below the single transparent film can normally transmit, and an upper light source can be reflected to reinforce the lower light source, thereby realizing light intensity superposition and improving brightness.

Further, the substrate 1 is an aluminum nitride substrate, and has good high heat conductivity.

The utility model relates to an adopt the LED luminescence unit of laser reinforcing, through adopting a plurality of LED chips to constitute the LED chip group, increase the whole luminous flux of the lighting unit of the utility model, satisfy the lighting demand of larger area; the original LED chip is assembled below the single transparent film by adopting one of the light sources of the laser emission enhanced lighting unit, the reflection of the laser is realized above the single transparent film, the light rays of the single transparent film and the laser are superposed to realize enhancement, and the light intensity is better; the LED light source group and the laser light source are integrated in the same lighting unit, so that the integration level is high, the original advantages of the LED light source are achieved, the advantages of the laser light source are achieved, the advantages of the LED light source are achieved, and the cost of the whole lighting unit is reduced while the advantages of the LED light source group and the laser light source are achieved; the single transparent film is made of a heat-conducting material which is high-temperature resistant, unidirectional in light transmission and high in back reflection, so that a light source below the single transparent film can normally transmit, and an upper light source can be reflected to reinforce the lower light source, so that light intensity superposition is realized, and the brightness is improved; the aluminum nitride substrate is adopted as the substrate, so that the high-heat-conductivity aluminum nitride substrate has good high heat-conductivity.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an adopt LED luminescence unit of laser reinforcing, includes the base plate, and the base plate top is equipped with the laser instrument, its characterized in that: the LED fluorescent powder laser is characterized in that an LED chip group is laid on the substrate, a ceramic fluorescent powder sheet is arranged on the LED chip group, a single transparent film plated on the ceramic fluorescent powder sheet is arranged between the ceramic fluorescent powder sheet and the LED chip group, light emitted by the laser can be reflected by the single transparent film after penetrating through the ceramic fluorescent powder sheet, and light generated by the LED chip group can penetrate through the single transparent film and be emitted out through the ceramic fluorescent powder sheet.

2. The LED lighting unit using laser enhancement according to claim 1, wherein: the laser is a laser emitting blue laser, the LED chip group is a blue LED chip group, and the ceramic fluorescent powder sheet is a yellow ceramic fluorescent powder sheet.

3. The LED lighting unit using laser enhancement according to claim 2, wherein: the LED chip group comprises one or more LED chips, and the blue light emitted by the LED chips irradiates the yellow ceramic fluorescent powder sheet and then excites white light; the blue light emitted by the laser is reflected by the single-transmission film and is excited by the yellow ceramic fluorescent powder sheet to form white light, and the white light and the yellow ceramic fluorescent powder sheet are superposed.

4. The LED lighting unit adopting laser enhancement according to any one of claims 1 to 3, wherein: the single-transmission film is made of heat-conducting materials which are high-temperature resistant, unidirectional in light transmission and high in back reflection.

5. The LED lighting unit using laser enhancement according to claim 1, wherein: the substrate is an aluminum nitride substrate.