CN202837788U - Double-lamp illumination device and projection equipment - Google Patents
Double-lamp illumination device and projection equipment Download PDFInfo
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- CN202837788U CN202837788U CN201220338372.1U CN201220338372U CN202837788U CN 202837788 U CN202837788 U CN 202837788U CN 201220338372 U CN201220338372 U CN 201220338372U CN 202837788 U CN202837788 U CN 202837788U
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- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 28
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model is applicable to the field of projection and provides a double-lamp illumination device and projection equipment. The double-lamp illumination device comprises two white light sources which are arranged in parallel, wherein a color wheel is arranged on an output light path of each of the two white light sources; the two color wheels have the same structure and synchronously rotate; and a light equalization system which can directly receive emergent light from the color wheels is arranged on the output light paths of the two color wheels. According to the utility model, the light emitted from the two light sources of the double-lamp illumination device is coupled to the light equalization system in a non-overlapped mode in different spaces, the interference loss generated by coupling two beams of light in the same narrow space is avoided, the problem that the light rays cannot fully enter an extremely small light entrance is solved, and the utilization rate of light energy is improved, thus improving the projection brightness. Moreover, the light penetrating through the color wheels is not required to be strictly focused at the light entrance of the light equalization system, the positions of the first light source and the second light source are not strictly limited, and the radiation design of the device is improved.
Description
Technical field
The utility model belongs to the shadow casting technique field, relates in particular to a kind of pair of lamp lighting apparatus and comprises the projector equipment of this device.
Background technology
At present, digital light is processed (DLP) two lamp projecting illumination systems and is generally adopted optical wand to carry out equal light shaping, and the light that two light sources send advances optical wand through devices such as catoptrons with optically-coupled, and colour wheel then is placed on the light-emitting window of optical wand.The weak point of this system is: the light that light source sends is when entering optical wand, because the size of optical wand inlet area is less, usually less than the size of launching spot, so that light can not fully enter optical wand, and different light beams is coupled in same small space, also can produce interference loss, therefore the coupling efficiency of this system is lower, and then affects projection brightness; In addition, optical wand is received the light time, needs light must focus on the optical wand entrance, and like this, the position of light source just is subject to strict restriction, is unfavorable for the heat dissipation design of optical projection system.
The utility model content
The purpose of this utility model is to provide a kind of pair of lamp lighting apparatus, is intended to solve the problem that the efficiency of light energy utilization that has two lamp lighting apparatus now is low, be not easy to heat dissipation design.
The utility model is to realize like this, a kind of pair of lamp lighting apparatus, comprise two white light sources that are arranged side by side, on the output light path of each described white light source, respectively be provided with a colour wheel, identical and the synchronous rotation of the structure of two described colour wheels is provided with an equal photosystem that can directly receive from the emergent light of described colour wheel at the output light path of two colour wheels.
As optimal technical scheme of the present utility model:
Described equal photosystem comprise two collimating mirror groups and one be used for will described two collimating mirror groups output light carry out all compound eye mirror groups of light processing, described two collimating mirror groups are positioned at respectively on the output light path of two colour wheels, and described compound eye mirror group is positioned on the output light path of described two collimating mirror groups.
Described collimating mirror group comprises the first lens near described colour wheel, and away from described colour wheel and the light that is used for coming from described first lens is converted to directional light and to the second lens of described compound eye mirror group output.
Described compound eye mirror group comprises incident fly's-eye lens and the outgoing fly's-eye lens of coaxial setting, described incident fly's-eye lens and outgoing fly's-eye lens include a plurality of lenticule unit that array is arranged that are, and the lenticule unit of described incident fly's-eye lens and the lenticule unit of described outgoing fly's-eye lens are corresponding one by one.
Described incident fly's-eye lens is arranged on two relative surfaces of a flat-plate lens with the outgoing fly's-eye lens.
Described incident fly's-eye lens and outgoing fly's-eye lens and described flat-plate lens are one-body molded.
Another purpose of the present utility model is to provide a kind of projector equipment, comprises display device reaches provides illumination for described display device lighting device, and described lighting device adopts described pair of lamp lighting apparatus.
The two lamp lighting apparatus of the utility model are respectively established a colour wheel at the output terminal of two light sources, and at the output terminal of two colour wheels one equal photosystem is set, make light that two light sources the send equal photosystem that is coupled into without stack in different spaces, avoided two-beam in same narrow space, to be coupled and the interference loss of generation, and avoided the problem that causes light not enter fully owing to light inlet is too small, improve the utilization factor of luminous energy, thereby improved projection brightness.And, needn't strictly focus on the light inlet of equal photosystem through the light of colour wheel, so needn't strictly limit the position of the first light source and secondary light source, and then be conducive to the heat dissipation design of this device.And then, so that adopt the projector equipment of this device to have advantages of that projection brightness is high and thermal diffusivity good.
Description of drawings
Fig. 1 is the structural representation () of the two lamp lighting apparatus of the utility model embodiment;
Fig. 2 is the structural representation (two) of the two lamp lighting apparatus of the utility model embodiment;
Fig. 3 is the fundamental diagram of the compound eye mirror group among the utility model embodiment;
Fig. 4 is the structural representation of the compound eye mirror group among the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structural representation of two lamp lighting apparatus embodiment that the utility model provides, for convenience of explanation, only shows the part relevant with the present embodiment.
This pair lamp lighting apparatus comprises two white light sources that are arranged side by side, on the output light path of each white light source, respectively be provided with a colour wheel, such as Fig. 1, two white light sources are the first light source 1 and secondary light source 2, output light path at the first light source 1 is provided with the first colour wheel 3, output light path at secondary light source 2 is provided with the second colour wheel 4, output light path at the first colour wheel 3 and the second colour wheel 4 is provided with an equal photosystem 5, all photosystem 5 has larger light inlet, can directly receive the output light of the first colour wheel 3 and the second colour wheel 4, and the devices such as condenser lens needn't be set forwardly.The structure of the first colour wheel 3 and the second colour wheel 4 is identical, the kind of the optical filter that the two is provided with (optical filtering wave band) is identical with number, and, the first colour wheel 3 and the second colour wheel 4 rotate synchronously, at any one time namely, the optical filter of the identical category on the first colour wheel 3 and the second colour wheel 4 forwards same position to, makes the color of the first colour wheel 3 transmissions all identical at any time with the color of the second colour wheel 4 transmissions.
This pair lamp lighting apparatus is respectively established a colour wheel at the output terminal of two light sources, and at the output terminal of two colour wheels the larger equal photosystem of one light inlet area is set, make light that two light sources the send equal photosystem that is coupled into without stack in different spaces, avoided two-beam in same narrow space, to be coupled and the interference loss of generation, and avoided the problem that causes light not enter fully owing to light inlet is too small, improve the utilization factor of luminous energy, thereby improved projection brightness.And, needn't strictly focus on the light inlet of equal photosystem through the light of colour wheel, so needn't strictly limit the position of the first light source and secondary light source, and then be conducive to the heat dissipation design of this device.In addition, when colour wheel places the bright dipping side of equal photosystem, the phenomenon of mixed light inequality when replacing, two optical filters can occur, and then cause color uneven, two colour wheels in the present embodiment are positioned over the light inlet side of equal photosystem, light through different optical filter outputs can all carry out colour mixture in the photosystem, and then has guaranteed the homogeneity of additive color.
In the present embodiment, the first colour wheel 3 and the second colour wheel 4 comprise three optical filters usually at least, are respectively applied to transmit red light, green glow and blue light.Preferably, three optical filters are divided equally a disc, and the central angle that each optical filter is corresponding is 120 °.Certainly, optical filter also can be provided with more, concrete, can evenly arrange successively clockwise or counterclockwise red-green-blue-red-green-blue-red ... optical filter.Below only be specific embodiment, the number of optical filter, color and angle can be according to the specific requirement flexible design.
In the present embodiment, white light source can comprise luminophor 101 and reflection shield 102, and reflection shield 102 has a reflecting surface, and its shape can be elliposoidal or other required forms.
Such as Fig. 2, in the present embodiment, all photosystem can comprise two collimating mirror groups and a compound eye mirror group, two collimating mirror groups are respectively the first collimating mirror group 51 and the second collimating mirror group 52, wherein, the first collimating mirror group 51 is positioned on the output light path of the first colour wheel 3, and the second collimating mirror group 52 is positioned on the output light path of the second colour wheel 4.53 of compound eye mirror groups are positioned on the output light path of two collimating mirror groups, have higher equal light characteristic.Wherein, light through the first colour wheel 3 and 4 outputs of the second colour wheel has certain angle of divergence, two light beams become directional light after the first collimating mirror group 51 and the second collimating mirror group 52, then inject simultaneously compound eye mirror group 53,53 pairs two bundles of compound eye mirror group directional light carries out all light processing and exports to the display panel 6 of optical projection system, such as Fig. 3.Collimating mirror group in this equal photosystem can 100% be received from the light of colour wheel output, and this part light projected compound eye mirror group 53 fully, optical energy loss is few, and because the efficient all characteristics of light of compound eye mirror group 53, so that the efficiency of light energy utilization of the more traditional optical wand of this equal photosystem 5 and to go out uniformity of light higher.
Further, the first collimating mirror group 51 and the second collimating mirror group 51 include two lens, namely near the incident lens 511 of colour wheel with away from the exit lens 512 of colour wheel, the light that incident lens 511 will come from the first colour wheel 3 focuses on, its focus point just overlaps with the focus of exit lens 512 near incident lens 511, make light beam through exit lens 512 for becoming directional light and exporting to compound eye mirror group 53.
Further, such as Fig. 4, compound eye mirror group 53 can comprise incident fly's-eye lens 531 and the outgoing fly's-eye lens 532 of coaxial setting.Incident fly's-eye lens 531 and outgoing fly's-eye lens 532 include a plurality of lenticule unit 5311 that array is arranged that are.The shape of this lenticule unit 5311 can adapt with the shape of the required illumination light of optical projection system, the lenticule unit of incident fly's-eye lens 531 and the lenticule unit of outgoing fly's-eye lens 532 are corresponding one by one, and the distance between two fly's-eye lenses is appropriate design according to actual needs.The light of each lenticule unit 5311 output of process fly's-eye lens all can project on the display panel 6 and cover whole display panel 6, like this, hot spot on the display panel 6 is the stack of the emergent light of numerous lenticule unit 5311, makes the illumination hot spot more even.
Further with reference to figure 4, the incident fly's-eye lens 531 of this compound eye mirror group 53 can be arranged on two relative surfaces of a flat-plate lens 533 with outgoing fly's-eye lens 532, forms an integral body, so that install.
Further, incident fly's-eye lens 531 and outgoing fly's-eye lens 532 can also be one-body molded with this flat-plate lens 533, namely choose a suitable clear sheet, process the lenticule cell array on two of this sheet material relative surfaces, be more convenient for like this making, and be more convenient for guaranteeing that the lenticule unit of incident fly's-eye lens 531 and outgoing fly's-eye lens 532 is corresponding one by one, produce error when avoiding assembling separately incident, outgoing fly's-eye lens.
Two lamp lighting apparatus that the utility model provides are coupled to equal photosystem with the light that two light sources send by two colour wheels in two separate paths, and the receipts luminous energy power of the optical wand that this equal photosystem is more traditional is stronger, its light loss is minimum, avoid two-beam in the process of coupling, to reach the loss that when entering equal optical device, produces, improved the degree of being illuminated of display panel; And the position of light source is unrestricted, is convenient to the design of cooling system; Guaranteed simultaneously the homogeneity of display frame color.This device is applicable in the optical projection system, especially the DLP optical projection system.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. two lamp lighting apparatus, it is characterized in that, comprise two white light sources that are arranged side by side, on the output light path of each described white light source, respectively be provided with a colour wheel, identical and the synchronous rotation of the structure of two described colour wheels is provided with an equal photosystem that can directly receive from the emergent light of described colour wheel at the output light path of two colour wheels.
2. as claimed in claim 1 pair of lamp lighting apparatus, it is characterized in that, described equal photosystem comprise two collimating mirror groups and one be used for will described two collimating mirror groups output light carry out all compound eye mirror groups of light processing, described two collimating mirror groups are positioned at respectively on the output light path of two colour wheels, and described compound eye mirror group is positioned on the output light path of described two collimating mirror groups.
3. as claimed in claim 2 pair of lamp lighting apparatus, it is characterized in that, described collimating mirror group comprises the incident lens near described colour wheel, and away from described colour wheel and the light that is used for coming from described incident lens is converted to directional light and to the exit lens of described compound eye mirror group output.
4. two lamp lighting apparatus as claimed in claim 2 or claim 3, it is characterized in that, described compound eye mirror group comprises incident fly's-eye lens and the outgoing fly's-eye lens of coaxial setting, described incident fly's-eye lens and outgoing fly's-eye lens include a plurality of lenticule unit that array is arranged that are, and the lenticule unit of described incident fly's-eye lens and the lenticule unit of described outgoing fly's-eye lens are corresponding one by one.
5. as claimed in claim 4 pair of lamp lighting apparatus is characterized in that, described incident fly's-eye lens is arranged on two relative surfaces of a flat-plate lens with the outgoing fly's-eye lens.
6. as claimed in claim 5 pair of lamp lighting apparatus is characterized in that, described incident fly's-eye lens and outgoing fly's-eye lens and described flat-plate lens are one-body molded.
7. a projector equipment comprises display device reaches provides illumination for described display device lighting device, it is characterized in that, described lighting device adopts each described pair of lamp lighting apparatus of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220338372.1U CN202837788U (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220338372.1U CN202837788U (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202837788U true CN202837788U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220338372.1U Expired - Fee Related CN202837788U (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768459A (en) * | 2012-07-12 | 2012-11-07 | 芜湖雅图数字视频技术有限公司 | Double-lamp illumination device and projection equipment |
-
2012
- 2012-07-12 CN CN201220338372.1U patent/CN202837788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768459A (en) * | 2012-07-12 | 2012-11-07 | 芜湖雅图数字视频技术有限公司 | Double-lamp illumination device and projection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU ANMANTE MICRO-DISPLAY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUHU ACTO DIGITAL VIDEO TECHNOLOGY CO., LTD. Effective date: 20131009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131009 Address after: 13 No. 241000, Zhanghe Road, hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: WUHU AMT MICRO DISPLAY TECHNOLOGY Co.,Ltd. Address before: 241000 Wuhu high tech Development Zone, Changjiang Road, No. 228, Anhui Patentee before: WUHU ACTO DIGITAL VIDEO TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20160823 Granted publication date: 20130327 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170823 Granted publication date: 20130327 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20170824 Granted publication date: 20130327 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220712 Granted publication date: 20130327 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |