CN202452439U - White balance semiconductor lighting device - Google Patents
White balance semiconductor lighting device Download PDFInfo
- Publication number
- CN202452439U CN202452439U CN2011205127975U CN201120512797U CN202452439U CN 202452439 U CN202452439 U CN 202452439U CN 2011205127975 U CN2011205127975 U CN 2011205127975U CN 201120512797 U CN201120512797 U CN 201120512797U CN 202452439 U CN202452439 U CN 202452439U
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- light source
- white balance
- sniffer
- complementary colors
- light
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Abstract
Disclosed is a white balance semiconductor lighting device which comprises a white light source, an auxiliary colored light source, a light homogenizing device, a detecting device and a control device, wherein the light homogenizing device is arranged on light emitting paths of the white light source and the auxiliary colored light source; the detecting device is arranged on the light emitting path of the light homogenizing device and is used for collecting light signals emitted in the light emitting path; and the control device is connected with the detecting device, and the brightness output of the auxiliary colored light source is controlled through the output of the detecting device. According to the white balance semiconductor lighting device, brightness proportion is adjusted during the process of mixing the colored light and the white light through the data collected by the detecting device and the control of the brightness output of the auxiliary colored light source by the control device, so that the color temperature value of the lighting device is balanced in a fixed small range, and the structure is simple and reliable.
Description
Technical field
The utility model relates to lighting source, relates in particular to a kind of white balance semiconductor illumination device.
Background technology
Semiconductor light-emitting elements, for example: (Light Emitting Diode LED) is a kind of gallium phosphide (GAP), gallium nitride semi-conducting material luminescent devices that process, that can directly electric energy be converted into luminous energy such as (GAN) to light emitting diode.When its inside had certain electric current to pass through, it will be luminous.Because the LED luminous efficiency is high, the life-span grows, is quick on the draw, do not contain characteristics such as Toxic matter, make its application more and more widely, be widely used in crystal projection, mobile phone backlight, display screen, light of stage illumination etc.
As the led light source of demonstration and lighting field, existing low-cost led light source adopts the fluorescence conversion usually, that is, utilize the emission light of predetermined wavelength to come excitated fluorescent powder, produces white light.For example: the white light patent of Japan day inferior (Nichia) company, utilize blue-light LED chip to excite yellow YAG fluorescent material to produce white light exactly.Yet, along with the inconsistency of LED technology controlling and process or lighting for a long time of led chip, usually the phenomenon that colour temperature departs from can take place.
The utility model content
The technical problem that the utility model will solve provides a kind of white balance semiconductor illumination device simple in structure, reliable.
The goal of the invention of the utility model realizes through following technical scheme:
A kind of white balance semiconductor illumination device comprises white light source, complementary colors radiant, dodging device, sniffer and control device.Wherein, dodging device is arranged on the emitting light path of said white light source and complementary colors radiant.Sniffer is arranged on the emitting light path of said dodging device, is used to gather irradiation optical signal within it.Control device is connected with said sniffer, controls the brightness output of said complementary colors radiant according to the output of sniffer.
The semiconductor illumination device of the utility model; Data through the sniffer collection; By the brightness output of control device control complementary colors radiant, the brightness ratio in adjustment coloured light and the white light colour mixture process, make lighting device integral body color temperature value be equilibrated at one fixing among a small circle in; Simple in structure, reliable.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the structural representation of the utility model white balance semiconductor illumination device.
Fig. 2 is the planar structure sketch map of Fig. 1.
The planar structure sketch map that Fig. 3 sees from the A direction for Fig. 2.
The specific embodiment
Shown in Figure 1 is the structural representation of the utility model white balance semiconductor illumination device, consults Fig. 2 and Fig. 3 simultaneously, and it comprises white light source 10, complementary colors radiant 20, dodging device 30, sniffer 40 and control device 50.Wherein, dodging device 30 is arranged on the emitting light path of white light source 10 and complementary colors radiant 20.Sniffer 40 is arranged on the emitting light path of dodging device 30, is used to gather irradiation optical signal within it.Control device 50 is connected with sniffer 40, controls the brightness output of complementary colors radiant 20 according to the output of sniffer 40.
In the utility model embodiment, white light source 10, complementary colors radiant 20 are led light source.In order to improve the luminous flux of light source, and then increase brightness, each led light source all can be the arrangement of a plurality of led chips with array way.In the utility model, complementary colors radiant 20 for the monochromatic light light source that sends a kind of color, send different colours the mixed-color light light source in a kind of or its combination.Wherein, the mixed-color light light source that sends different colours is the mixing that multiple different wave length led chip hybrid package or different wave length led chip individual packages become the arbitrary source of different colours.For example; Complementary colors radiant 20 can be independent red-light source, independent blue light source, the coloured light light source of other independent color; Also can be the mixed-color light light source that sends at least two kinds of different colours (as: ruddiness and blue light combine), or above-mentioned combination.Consulting Fig. 3, is that 2 kinds of complementary colors radiants 20 cooperate a plurality of white light sources 10, and wherein a kind of complementary colors radiant is a red-light source, and another kind of complementary colors radiant is a blue light source.
In other embodiment of the utility model, also can cooperate a plurality of white light sources 10 for a kind of complementary colors radiant 20.As: a plurality of white light sources 10 are provided with around a kind of complementary colors radiant 20.In the middle of the complementary colors radiant by red, blue chip with cover light source shaping mirror group red, blue chip simultaneously and form.Certainly, also can be that a kind of independent blue light source cooperates white light source, or a kind of independent red-light source cooperate white light source.
When the quantity of white light source 10, complementary colors radiant 20 when being a plurality of, white light source 10, complementary colors radiant 20 are nonlinear being arranged on the same substrate (not shown).Certainly, in other embodiment of the utility model, also can be that branch stands on the different substrate.This substrate is the high thermal conductive substrate that insulate, and its material is for being AlN or type brill carbon.The surface of insulation high thermal conductive substrate is provided with the circuit layer that electrically connects with white light source 10, complementary colors radiant 20.This circuit layer is the surface that is arranged at the insulation high thermal conductive substrate with the mode of the mode of vacuum sputtering or printed wire.The bottom of insulation high thermal conductive substrate then is provided with high thermal conductivity layer.The material of this high thermal conductivity layer can be metal, like aluminium, copper etc.Again, this high thermal conductivity layer can with insulation high thermal conductive substrate one-body molded (mode as through sintering is one-body molded).Certainly, this high thermal conductivity layer also can with the insulation high thermal conductive substrate, and link together through the mode of bondings such as viscose glue.Adopt this structure; The heat dissipation channel that the heat that white light source 10, complementary colors radiant 20 are produced can be formed through the insulation high thermal conductive substrate of AlN or type brill carbon material fast conducts; Outwards dissipate, therefore, the temperature at substrate surface light source place can reduce rapidly.
As shown in the figure, in the utility model embodiment, dodging device 30 comprises compound eye lens group 301 and relay lens 302.Wherein, compound eye lens group 301 is a plurality of identical or different lenticular array combination, is used for white light source 10 and complementary colors radiant 20 are carried out homogenising and shaping processing.Relay lens 302 is arranged between compound eye lens group 301 and the sniffer 40.
In the utility model embodiment, sniffer 40 is a photoelectric sensor, is positioned near the even optical plane of dodging device 30, and optical signal is converted into the signal of telecommunication.Sniffer 40 is surveyed the optical signal of the emergent light behind white light source 10 and the complementary colors radiant 20 process dodging devices 30 even light.During concrete operations, can regulate through the two kinds of means and the contrast of corresponding standard value of brightness value or chromatic value.Say in detail; When sniffer 40 was output as brightness value, control device 50 compared actual brightness value and preset normal brightness value, confirms the difference between the two; According to the drive current of this difference, regulate the output brightness of each auxiliary coloured light through control complementary colors radiant 20.When sniffer 40 is output as chromatic value; Control device 50 compares actual chromatic value and preset standard colorimetric value; Confirm the difference between the two; And, regulate the output brightness of each auxiliary coloured light according to the drive current of this difference through control complementary colors radiant 20, make that light source output light color is the standard colorimetric value of setting.
Generally speaking, the ratio of red, green, blue three looks relevant with colour temperature.Usually, colour temperature is high more, and blue light ingredient is many more, and colour temperature is low more, and then the ruddiness composition is many more.Therefore, through the brightness ratio in the adjustment coloured light colour mixture process, can make color temperature value be equilibrated at one fixing among a small circle in (like 6500K ± 300K).In the utility model embodiment; If the actual color temperature value that detects is higher; The mode of drive current that then can be through increasing red-light source or the drive current that reduce blue light source (here; Can not only increase the drive current of red-light source but also reduce the drive current of blue light source; Keep balance within the specific limits as long as satisfy the whole color temperature value of light source), the brightness increase of red-light source or the brightness of blue light source are reduced, thereby make the whole color temperature value of light source keep balance within the specific limits.In like manner; When if the actual color temperature value that detects is on the low side; Drive current that then can be through reducing red-light source or increase the mode (, can not only reduce the drive current of red-light source but also reduce the drive current of blue light source, and keep balance within the specific limits) of the drive current of blue light source here as long as satisfy the whole color temperature value of light source; Ruddiness brightness is reduced or blue light brightness increases, thus make the whole color temperature value of light source be equilibrated at one fixing among a small circle in.
Therefore; The semiconductor illumination device of the utility model through the data that sniffer is gathered, is exported by the brightness of control device control complementary colors radiant; Brightness ratio in adjustment coloured light and the white light colour mixture process; Make the whole color temperature value of lighting device be equilibrated at one fixing among a small circle in, simple in structure, reliable.
The specific embodiment of the above is the preferred embodiments of utility model; It is not the practical implementation scope that limits the utility model with this; The scope of the utility model comprises and is not limited to this specific embodiment, and all shapes according to the utility model, the equivalence that structure is done change and all comprise in the protection domain of the utility model.
Claims (9)
1. a white balance semiconductor illumination device is characterized in that, comprising:
White light source;
The complementary colors radiant;
Dodging device is arranged on the emitting light path of said white light source and complementary colors radiant;
Sniffer is arranged on the emitting light path of said dodging device, is used to gather irradiation optical signal within it; And
Control device is connected with said sniffer, controls the brightness output of said complementary colors radiant according to the output of sniffer.
2. white balance semiconductor illumination device according to claim 1 is characterized in that, said white light source, complementary colors radiant are led light source.
3. white balance semiconductor illumination device according to claim 2 is characterized in that, a kind of or its combination in the mixed-color light light source that said complementary colors radiant is the monochromatic light light source that sends a kind of color, send different colours.
4. white balance semiconductor illumination device according to claim 3; It is characterized in that the said mixed-color light light source that sends different colours is that multiple different wave length led chip hybrid package becomes an arbitrary source or different wave length led chip individual packages to become the mixing of the arbitrary source of different colours.
5. white balance semiconductor illumination device according to claim 1 is characterized in that, said dodging device comprises:
Compound eye lens group is used for said white light source and the complementary colors radiant carries out homogenising and shaping is handled; And
Relay lens is arranged between said compound eye lens group and the sniffer.
6. white balance semiconductor illumination device according to claim 5 is characterized in that, said compound eye lens group is a plurality of identical or different lenticular array combination, and said sniffer is positioned near the even optical plane of said dodging device.
7. white balance semiconductor illumination device according to claim 1 is characterized in that, said sniffer is a photoelectric sensor.
8. white balance semiconductor illumination device according to claim 1 is characterized in that said sniffer is output as brightness value; Said control device compares actual brightness value and preset normal brightness value, confirms the difference between the two, according to the drive current of this difference through control complementary colors radiant, regulates the output brightness of each auxiliary coloured light.
9. white balance semiconductor illumination device according to claim 1; Said sniffer is output as chromatic value; Said control device compares actual chromatic value and preset standard colorimetric value; Confirm the difference between the two,, regulate the output brightness of each auxiliary coloured light according to the drive current of this difference through control complementary colors radiant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205127975U CN202452439U (en) | 2011-12-09 | 2011-12-09 | White balance semiconductor lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205127975U CN202452439U (en) | 2011-12-09 | 2011-12-09 | White balance semiconductor lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452439U true CN202452439U (en) | 2012-09-26 |
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ID=46868301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205127975U Expired - Lifetime CN202452439U (en) | 2011-12-09 | 2011-12-09 | White balance semiconductor lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430790A (en) * | 2015-11-13 | 2016-03-23 | 欧普照明股份有限公司 | Light mixing method used for LED light sources and linear lighting lamp |
| CN103162105B (en) * | 2011-12-09 | 2016-09-14 | 红蝶科技(深圳)有限公司 | A kind of white balance semiconductor illumination device |
-
2011
- 2011-12-09 CN CN2011205127975U patent/CN202452439U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162105B (en) * | 2011-12-09 | 2016-09-14 | 红蝶科技(深圳)有限公司 | A kind of white balance semiconductor illumination device |
| CN105430790A (en) * | 2015-11-13 | 2016-03-23 | 欧普照明股份有限公司 | Light mixing method used for LED light sources and linear lighting lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Cui Jing Road Shenzhen City, Guangdong province 518118 Pingshan New District No. 35 No. 1 Building 6 East Patentee after: Butterfly Technology (Shenzhen) Limited Address before: 518057, Guangdong, Nanshan District hi tech Industrial Park, Shenzhen District North West Road, No. 5, Galaxy Fengyun building, 3 floor Patentee before: Butterfly Technology (Shenzhen) Limited |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |