CN201487708U - LED stage light illumination device for improving color uniformity - Google Patents
LED stage light illumination device for improving color uniformity Download PDFInfo
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- CN201487708U CN201487708U CN2009201343696U CN200920134369U CN201487708U CN 201487708 U CN201487708 U CN 201487708U CN 2009201343696 U CN2009201343696 U CN 2009201343696U CN 200920134369 U CN200920134369 U CN 200920134369U CN 201487708 U CN201487708 U CN 201487708U
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Abstract
The utility model provides an LED stage light illumination device for improving color uniformity, which comprises three LED arrays emitting red light, green light and blue light respectively, lens arrays which are dead against each LED array, a light-splitting and color-matching device and a focusing lens respectively; in particular, the LED stage light illumination device for improving the color uniformity also comprises a pair of fly's-eye lenses arranged between the light-splitting and color-matching device and the focusing lens, wherein the pair of fly's-eye lenses comprises two opposite fly's-eye lenses; each fly's-eye lens consists of a plurality of lens units which are firmly connected with each other and have the same mirror face curvature; and the back fly's-eye lens is positioned at a focal point of the front fly's-eye lens along an optical path direction. The fly's-eye lenses cut and integrate light initially mixed by the light-splitting and color-matching device so as to enhance the uniformity of mixed light and to improve the white brightness and the color uniformity of projected images. Therefore, the LED stage light illumination device for improving the color uniformity solves the problem of color deviation of the LED stage light illumination device in the prior art.
Description
Technical field
The utility model relates to the functional character or the parts of lighting device or its system, particularly relates to the equipment that is mainly used in the light of stage illumination.
Background technology
The high-power light of stage of prior art mainly adopts golden halogen discharging bulb as light source; Because golden halogen discharging bulb is a white light source, the light coloring that described lighting apparatus sends need be realized by optical filter is set before golden halogen discharging bulb.Described golden halogen discharging bulb is lower service life, has only hundreds of hour not wait by thousands of hours; If use optical filter to obtain the stage illumination, lighting light of multicolour, the color saturation that projects image is low, and color is not bright-coloured, and color is not abundant yet.The LED light source is the clean energy-conserving light source of green non-pollution, and high life, and along with luminous flux rises year by year, described led light source has become the first-selected device of Application and Development gradually in lighting field.Led light source can send multiple monochromatic light, if the light of stage lighting apparatus adopts led light source, can save the optical filter in the traditional approach, and utilize RGB three primary colours light principle, the method for electric current of sending the LED of red light, green light and blue light by adjusting obtains the RGB three primary colours mixed light of arbitrary hue.Because the glow color saturation degree of monochromatic LED is than higher, thereby adopts led light source on light of stage, the very high free degree is arranged on color representation.
Prior art LED caloric value height, single led chip can not bear high power and luminous efficiency also is not very high, adopts the mode of led array to realize that high light flux is to obtain desirable light of stage lighting source usually.
Application number is the light source assembly that 200720061982.0 Chinese patent discloses a kind of stage lighting, adopt a led array and large-scale heat abstractor, the luminous power of one hectowatt can be provided, and can realize the color adjustment by the work of controlling the not homochromy LED in this led array.Its weak point is: based on performance indications such as heat radiation and luminous fluxes, and the consideration of especially exporting the light tone uniformity aspect of light, this light source assembly still can not satisfy the demand of high-power light of stage.
For this reason, our company once proposed in the Chinese patent application, will be a branch of by dividing photosynthetic look device to synthesize from the monochromatic light of a plurality of led array, and can improve the power output of light source and improve light output light tone uniformity.
Above-mentioned technology also exists some defectives and weak point:
1. emission spectrum, the ambient humidity, light and temperature characteristic of forming each led chip of described led array are all different, light that each led chip sends is through the subsequent optical system projects on stage or screen the time, corresponding each led chip of some parts sends the characteristic of light on this stage or screen, for example brightness and spectrum, all different, thus the image local colour cast that projects caused;
2. reach good mixed light effect after only relying on the photosynthetic look device of described branch can not make each monochromatic light mix, thereby cause the color of image uniformity that is incident upon on stage or the screen relatively poor, especially can make white the colour cast that projects.
The utility model content
The technical problems to be solved in the utility model is to avoid the deficiencies in the prior art part and proposes a kind of LED light of stage lighting apparatus that improves the mixed light effect, and the colour cast problem appears in the image that is incident upon on stage or the screen with solution.
The present invention solve the technical problem can also be by realizing by the following technical solutions:
Design, make a kind of LED light of stage lighting apparatus that improves color homogeneity, comprise three led array sending ruddiness, green glow, blue light respectively, respectively over against the lens arra of each led array, divide photosynthetic look device and lens; The light that described each led array sends respectively by separately over against lens arra inject the photosynthetic look device of branch and carry out mixed light, then penetrate stage illumination, lighting light by described lens; Especially, comprise that a fly's-eye lens that places between described Multiplexing apparatus and the condenser lens is right, this fly's-eye lens is to comprising two relative fly's-eye lenses, and each fly's-eye lens constitutes by the plural lenses unit that is closely linked together and curvature mirror is identical; Along optical path direction, back one fly's-eye lens is positioned at the focus place of last fly's-eye lens.
In order to improve the utilization rate of led light source, the longitudinal cross-section of each described lens unit is regular hexagon or square, and each lens unit is seamless to be bound up; Perhaps, the longitudinal cross-section of each described lens unit is rounded, and each lens unit edge is closely linked together tangently.Described fly's-eye lens is made with glass, perhaps forms with the plastic cement manufacturing and through opening the membrane process processing.Described fly's-eye lens is to being integrated.
The photosynthetic look device of described branch is that the X type divides photosynthetic look device, or x-cube; This X type divides photosynthetic look device to comprise the photosynthetic colo(u)r filter of branch that two square crossings are provided with, and three light entrance ports and an optical emission exit of being intersected to form by this two fens photosynthetic colo(u)r filters; The photosynthetic colo(u)r filter of described branch is the dichroic sheet, or is coated with the light transmission piece of beam split filter coating.
The photosynthetic look device of described branch can also be following scheme, comprises two photosynthetic colo(u)r filters of parallel branch; The photosynthetic colo(u)r filter of described branch comprises first entrance port and second entrance port of dividing two side incidents of photosynthetic colo(u)r filter respectively from this, and divides photosynthetic colo(u)r filter reflecting surface side direction relative exit portal with this.Along beam direction, the exit portal of first photosynthetic colo(u)r filter of branch is over against first entrance port of second photosynthetic colo(u)r filter of branch, thereby, inject two entrance ports of this first photosynthetic colo(u)r filter of branch and second entrance port of second photosynthetic colo(u)r filter of branch respectively from the light of described three led array, synthetic light is penetrated by the exit portal of described second photosynthetic colo(u)r filter of branch.The photosynthetic colo(u)r filter of described branch is the dichroic sheet, or is coated with the light transmission piece of beam split filter coating.
Described LED light of stage lighting apparatus also comprises and has the pattern disk that is arranged on the pattern segments on the described lens emitting light path.
Compare with prior art, the technique effect that the utility model " improves the LED light of stage lighting apparatus of mixed light effect " is:
The preliminary composite light of the involutory look light-dividing device of described fly's-eye lens cuts integration, thereby improve this mixing uniformity of light, white brightness and color homogeneity that order is incident upon the image on stage or the screen all have raising, have solved the colour cast problem of prior art LED light of stage lighting apparatus; And, solving LED light of stage lighting apparatus colour cast problem simultaneously, consider that illumination hot spot and circular pattern are complementary, the regular hexagon design is adopted in the longitudinal cross-section of each lens unit that described fly's-eye lens is right, makes optical efficiency reach optimum.
Description of drawings
Fig. 1 is the light path schematic diagram of the utility model first embodiment;
Fig. 2 is the light path principle schematic diagram of the fly's-eye lens 300 of described first embodiment;
Fig. 3 is the orthographic projection schematic diagram of the pattern disk 500 of described first embodiment;
Fig. 4 is the orthographic projection schematic diagram of the fly's-eye lens 300 of described first embodiment;
Fig. 5 is the partial schematic diagram of Fig. 4 fly's-eye lens embodiment longitudinal cross-section;
Fig. 6 is the light energy loss schematic diagram of Fig. 4 fly's-eye lens embodiment;
Fig. 7 is the projected spot that described first embodiment is obtained;
Fig. 8 is the illumination test curve of hot spot shown in Figure 7;
Fig. 9 is the orthographic projection schematic diagram of fly's-eye lens 300 second embodiment of the present invention;
Figure 10 is the partial schematic diagram of Fig. 9 fly's-eye lens embodiment longitudinal cross-section;
Figure 11 is the local orthographic projection schematic diagram of fly's-eye lens 300 the 3rd embodiment of the present invention;
Figure 12 is the light energy loss schematic diagram of Figure 11 fly's-eye lens;
Figure 13 is the light path schematic diagram of the utility model equipment second embodiment.
The specific embodiment
Be described in further detail below in conjunction with each embodiment shown in the accompanying drawing.
The utility model relates to a kind of LED light of stage lighting apparatus that improves color homogeneity, as shown in Figure 1, comprise three led array 110 sending ruddiness, green glow, blue light respectively, respectively over against the lens arra 120 of each led array, divide photosynthetic look device 200 and condenser lens 400.Described led array 110 is made up of the led chip 111 of evenly arranging by array, thereby forms array light source.Described lens arra is made up of lens 121 over against each led chip 111 respectively.The light that described each led array 110 sends respectively by separately over against lens arra 120 inject the photosynthetic look device 200 of branch and carry out mixed light, then penetrate the stage illumination, lighting light by described condenser lens 400.Especially, described LED light of stage lighting apparatus comprises that also a fly's-eye lens that places between photosynthetic look device 200 of described branch and the condenser lens 400 is to 300, this fly's-eye lens comprises two relative fly's-eye lenses to 300, and each fly's-eye lens constitutes by the plural lenses unit 310 that is closely linked together and curvature mirror is identical; Along optical path direction, back one fly's-eye lens is positioned at the focus place of last fly's-eye lens.
In order to make projection hot spot before the lights have pattern effect, described LED light of stage lighting apparatus also comprises the pattern disk 500 that has pattern segments, and described pattern segments is arranged on the emitting light path of described condenser lens 400.
Various embodiments of the present invention, the led chip 111 of described led array 110 is square light sources, lighting angle is 180 °.Described lens arra 120 becomes nearly collimated light beam with the optical alignment that each led chip 111 sends.The photosynthetic look device 200 of described branch is used for red, green and blue three kinds of monochromatic light are tentatively mixed and penetrate the directional light of this process mixing.On the light path of dividing between photosynthetic look device 200 and the condenser lens 400, along optical path direction, the fly's-eye lens 300 that is arranged in the place ahead is that the mixing directional light that will close 200 ejaculations of look light-dividing device focuses on the surface of the fly's-eye lens 300 that is positioned at the rear.The luminous intensity that is positioned on 310 pairs of incident areas of each lens unit of fly's-eye lens 300 in the place ahead is cut integration, this each lens unit 310 that is positioned at the fly's-eye lens 300 in the place ahead is imaged on the pattern disk 500 through fly's-eye lens 300 and the condenser lens 400 that is positioned at the rear, each lens unit 310 carries out the intensity integration on pattern disk 500, each lens unit 310 front surface that promptly is positioned at the fly's-eye lens 300 in the place ahead all are imaged on pattern disk 500 places, so just obtain good brightness uniformity and color homogeneity at pattern disk 500.Fig. 7 and Fig. 8 are hot spot and the optical characteristics thereof that projects through application the present invention that experiment records, and as seen, the optical characteristics of this hot spot (illumination) is very even.Therefore, the invention solves the colour cast problem of prior art LED light of stage lighting apparatus, improved the uniformity of color.
The shape of the longitudinal cross-section of described lens unit 310 when vertically placing should be complementary with the shape of pattern disk 500 to obtain higher optics utilization rate.When light of stage throws light on, all need throw circular light spot usually at stage, therefore in first embodiment of the invention and other each embodiment, as shown in Figure 3, what the pattern segments on the described pattern disk 500 more often adopted is circular.At this moment, the shape of each lens unit 310 of described fly's-eye lens 300 and the relation of arranging are exactly the principal element that causes the light energy loss.Consider to improve the optics utilization rate from fly's-eye lens 300 aspects, just need each lens unit 310 seamless connection, when generally having only the longitudinal center cross section to be regular polygon, just can accomplish the seamless connection of lens unit 310.But the regular polygon hot spot that this fly's-eye lens 300 forms is incident upon the circular pattern sheet, must have part light and can not be incident upon on the circular pattern sheet, thereby cause light energy losses.Considering to improve the optics utilization rate from pattern disk 500 aspects, is circular with regard to the shape that needs projected spot, and the longitudinal cross-section of each lens unit 310 is good with circle so.But this longitudinal cross-section is that circular lens unit 310 can't be realized seamless connection, can only tangently connect, and at this moment, not every light can both pass through each lens unit 310, thereby causes the light energy loss.Fly's-eye lens first embodiment of the present invention, as shown in Figure 4 and Figure 5, the longitudinal cross-section that described lens unit 310 is erect when placing is regular hexagon, each lens unit 310 tight seamless being bound up.The loss part of the light energy when dash area 610 is exactly the facula area maximum that is incident upon on the pattern segments among Fig. 6.Fly's-eye lens second embodiment of the present invention, as Fig. 9 and shown in Figure 10, the longitudinal cross-section that described lens unit 310 is erect when placing is rounded, each lens unit 310 mutually near and the edge be bound up tangently.At this moment, though the hot spot of projection can be covered with whole pattern segments, the light by dash area among Figure 10 620 can not be incident upon on the pattern segments, therefore, and the light energy loss part that this dash area 620 is exactly described second embodiment.Fly's-eye lens the 3rd embodiment of the present invention, as shown in figure 11, the longitudinal cross-section that described lens unit 310 is erect when placing is square, each lens unit 310 tight seamless being bound up.The loss part of the light energy the when dash area 630 among Figure 12 is exactly the facula area maximum that is incident upon on the pattern segments.Analysis chart 6, Figure 10 and Figure 12 can determine that for circular pattern sheet of the same area, first embodiment to the, three embodiment light energy loss separately progressively increases.
Described fly's-eye lens 300 usefulness glass are made, and perhaps form with the plastic cement manufacturing and through opening the membrane process processing.Consider cost and easy to assembly, this fly's-eye lens is preferably integrated to 300, faces toward the two sides of light path like this with the undulate convex shape.
The described look light-dividing device 200 that closes can have following two kinds of implementations:
As shown in Figure 1, the photosynthetic look device 200 of described branch is that the X type divides photosynthetic look device 210, or x-cube; This X type divides photosynthetic look device 210 to comprise the photosynthetic colo(u)r filter 230 of branch that two square crossings are provided with, and three light entrance ports 212 and an optical emission exit 213 of being intersected to form by these two minutes photosynthetic colo(u)r filters 230; The photosynthetic colo(u)r filter 230 of described branch is dichroic sheets, or is coated with the light transmission piece of beam split filter coating.
As shown in figure 13, present device second embodiment, the photosynthetic look device 200 of described branch comprise two photosynthetic colo(u)r filters 230 of parallel branch; The photosynthetic colo(u)r filter 230 of described branch comprises first entrance port 231 and second entrance port 232 of dividing 230 two side incidents of photosynthetic colo(u)r filter respectively from this, and divides photosynthetic colo(u)r filter 230 reflecting surface side direction relative exit portal 233 with this; Along beam direction, the exit portal 233 of first photosynthetic colo(u)r filter 230 of branch is over against first entrance port 231 of second photosynthetic colo(u)r filter 230 of branch, thereby, inject second entrance port 232 of 231, the 232 and second photosynthetic colo(u)r filters 230 of branch in two entrance ports of this first photosynthetic colo(u)r filter 230 of branch respectively from the light of described three led array 110, synthetic light is penetrated by the exit portal 233 of described second photosynthetic colo(u)r filter 230 of branch; The photosynthetic colo(u)r filter 230 of described branch is dichroic sheets, or is coated with the light transmission piece of beam split filter coating.
Claims (8)
1. LED light of stage lighting apparatus that improves color homogeneity, comprise three led array (110) of sending ruddiness, green glow, blue light respectively, respectively over against the lens arra (120) of each led array, divide photosynthetic look device (200) and condenser lens (400); The light that described each led array (110) sends respectively by separately over against lens arra (120) inject the photosynthetic look device of branch (200) and carry out mixed light, then penetrate stage illumination, lighting light by described condenser lens (400); It is characterized in that:
Comprise that also a fly's-eye lens that places between photosynthetic look device of described branch (200) and the condenser lens (400) is to (300), this fly's-eye lens comprises two relative fly's-eye lenses to (300), and each fly's-eye lens constitutes by the plural lenses unit (310) that is closely linked together and curvature mirror is identical; Along optical path direction, back one fly's-eye lens is positioned at the focus place of last fly's-eye lens.
2. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
The longitudinal cross-section of each described lens unit (310) or be regular hexagon perhaps is square; Seamless being bound up of each lens unit (310).
3. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
The longitudinal cross-section of each described lens unit (310) is rounded, and each lens unit (310) edge is closely linked together tangently.
4. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
The photosynthetic look device of described branch (200) is that the X type divides photosynthetic look device (210), or x-cube; This X type divides photosynthetic look device (210) to comprise the photosynthetic colo(u)r filter of branch (230) that two square crossings are provided with, and by this two minutes photosynthetic colo(u)r filters (230) three the light entrance ports (212) and the optical emission exits (213) that intersect to form.
5. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
The photosynthetic look device of described branch (200) comprises two photosynthetic colo(u)r filters of parallel branch (230); The photosynthetic colo(u)r filter of described branch (230) comprises first entrance port (231) and second entrance port (232) of dividing (230) two side incidents of photosynthetic colo(u)r filter respectively from this, and divides photosynthetic colo(u)r filter (230) reflecting surface side direction relative exit portal (233) with this;
Along beam direction, the exit portal (233) of first photosynthetic colo(u)r filter of branch (230) is over against first entrance port (231) of second photosynthetic colo(u)r filter of branch (230), thereby, inject two entrance ports (231,232) of this first photosynthetic colo(u)r filter of branch (230) and second entrance port (232) of second photosynthetic colo(u)r filter of branch (230) respectively from the light of described three led array (110), synthetic light is penetrated by the exit portal (233) of described second photosynthetic colo(u)r filter of branch (230).
6. according to claim 4 or the 5 described LED light of stage lighting apparatus that improve color homogeneity, it is characterized in that:
The photosynthetic colo(u)r filter of described branch (230) is the dichroic sheet, or is coated with the light transmission piece of beam split filter coating.
7. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
Also comprise the pattern disk (500) that has pattern segments, described pattern segments is arranged on the emitting light path of described condenser lens (400).
8. according to the described LED light of stage lighting apparatus that improves color homogeneity of claim 1, it is characterized in that:
Described fly's-eye lens is integrated to (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201343696U CN201487708U (en) | 2009-07-31 | 2009-07-31 | LED stage light illumination device for improving color uniformity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201343696U CN201487708U (en) | 2009-07-31 | 2009-07-31 | LED stage light illumination device for improving color uniformity |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011011981A1 (en) * | 2009-07-31 | 2011-02-03 | 深圳市光峰光电技术有限公司 | Led illuminating device for stage lighting and method for improving color uniformity of the device |
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN102865467A (en) * | 2011-07-08 | 2013-01-09 | 扬升照明股份有限公司 | Illuminating system and pattern projection lamp |
| CN103080639A (en) * | 2010-09-10 | 2013-05-01 | 皇家飞利浦电子股份有限公司 | Improved mixing optical zoom system with moving gate and gobo |
| WO2014111058A1 (en) * | 2013-01-21 | 2014-07-24 | 深圳市光峰光电技术有限公司 | Illuminating system and related light-emitting device thereof |
| WO2014117704A2 (en) * | 2013-01-31 | 2014-08-07 | 深圳市光峰光电技术有限公司 | Led light source system and led lighting device |
| EP2789897A4 (en) * | 2011-12-11 | 2015-08-26 | Appotronics Corp Ltd | Light source and illuminating device |
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| WO2011011981A1 (en) * | 2009-07-31 | 2011-02-03 | 深圳市光峰光电技术有限公司 | Led illuminating device for stage lighting and method for improving color uniformity of the device |
| CN103080639A (en) * | 2010-09-10 | 2013-05-01 | 皇家飞利浦电子股份有限公司 | Improved mixing optical zoom system with moving gate and gobo |
| CN102865467A (en) * | 2011-07-08 | 2013-01-09 | 扬升照明股份有限公司 | Illuminating system and pattern projection lamp |
| EP2789897A4 (en) * | 2011-12-11 | 2015-08-26 | Appotronics Corp Ltd | Light source and illuminating device |
| US9791132B2 (en) | 2011-12-11 | 2017-10-17 | Appotronics Corporation Limited | Light source and illuminating device |
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN102853374B (en) * | 2012-08-24 | 2015-03-18 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| WO2014111058A1 (en) * | 2013-01-21 | 2014-07-24 | 深圳市光峰光电技术有限公司 | Illuminating system and related light-emitting device thereof |
| WO2014117704A3 (en) * | 2013-01-31 | 2014-09-25 | 深圳市光峰光电技术有限公司 | Led light source system and led lighting device |
| WO2014117704A2 (en) * | 2013-01-31 | 2014-08-07 | 深圳市光峰光电技术有限公司 | Led light source system and led lighting device |
| EP2985512A4 (en) * | 2013-04-11 | 2016-11-16 | Appotronics China Corp | Led unit module, light-emitting device, and light source system |
| US9970628B2 (en) | 2013-04-11 | 2018-05-15 | Appotronics China Corporation | LED unit module, light-emitting device, and light source system |
| CN109646808A (en) * | 2018-12-20 | 2019-04-19 | 广州美锐健康产业股份有限公司 | A kind of smooth power and pure oxygen combination therapy device and treatment method |
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Addressee: Yang Yi Document name: Notification of Passing Examination on Formalities |
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Effective date of registration: 20171103 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town tea light road on the south side of Shenzhen integrated circuit design and application of Industrial Park 402, 403, 411, 410-1 Patentee after: Shenzhen Yili Ruiguang Technology Development Co.,Ltd. Address before: 1703 room 518057, overseas student Pioneer Building, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: Shenzhen Appotronics Co., Ltd. |
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Granted publication date: 20100526 |