CN202886822U - Light-emitting device and related projection system - Google Patents
Light-emitting device and related projection system Download PDFInfo
- Publication number
- CN202886822U CN202886822U CN2012204522882U CN201220452288U CN202886822U CN 202886822 U CN202886822 U CN 202886822U CN 2012204522882 U CN2012204522882 U CN 2012204522882U CN 201220452288 U CN201220452288 U CN 201220452288U CN 202886822 U CN202886822 U CN 202886822U
- Authority
- CN
- China
- Prior art keywords
- light
- polarization
- prism
- polarization state
- square rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The embodiment provided in the utility model discloses a light-emitting device and a projection system, comprising the components as following: an excitation light source for emitting exciting light; a reflective wavelength conversion device, which receives the exciting light, generates excited light and emits the excited light; a light collecting device, which collects the emitting light of the reflective wavelength conversion device and emits the emitting light from another optical path; a uniform light square stick used for the emitting light of the light collecting device; and a polarized light conversion device, comprising a polarizing light splitter, optical path adjusting components and a polarized light conversion component, wherein the polarized light conversion device is used for transmitting the light at a first polarization state in the emitting light of the light collecting device and reflecting the light at a second polarization state in the emitting light of the light collecting device. The optical path adjusting components include a third prism and a reflection component, and an optical path adjusting device receives the light at a first polarization state and emits the light at a first polarization state at a direction parallel to the emitting direction of the light at a second polarization state. The uniform light square stick is fixedly connected with the polarized light conversion device. The utility model provides a reflective polarized light source, wherein the structure is simple, and cost is low.
Description
Technical field
The utility model relates to illumination and display technique field, particularly relates to a kind of light-emitting device and relevant projecting system.
Background technology
Optical projection system in the market comprises three classes substantially: DLP(Digital Light Processing, the numeral light path is processed) optical projection system, LCD(liquid crystal display, liquid crystal display) optical projection system and LCOS(Liquid Crystal on Silicon, liquid crystal on silicon) optical projection system.Wherein, LCD optical projection system and LCOS optical projection system all need the emergent light of light source outgoing polarized light or light source to be converted to polarized light and just can be used for projection.Fig. 1 a is the structural representation of a kind of light-emitting device that can the outgoing polarized light in the prior art, as shown in Figure 1a, light-emitting device comprises light source 110, fly's-eye lens is to 130, polarization converter 120, wherein fly's-eye lens can be spared light to the emergent light of light source 110 to 130, the structure of polarization converter 120 is shown in Fig. 1 b, it comprises a plurality of polarization conversion unit, each polarization conversion unit correspondence a fly's-eye lens to lens in 130, polarization conversion unit 120a comprises filter coating 121a, reflectance coating 122a and 1/2nd wave plate 123a, and two surfaces of filter coating 121a and reflectance coating 122a all with the prism close contact.Filter coating 121a receives the nonpolarized light of at a certain angle oblique incidence and is divided into the mutually perpendicular two-way light of polarization state, and the certain angle here generally is 45 degree.Reflectance coating 122a receives the polarized light that is reflected by filter coating 121a, and it is reflexed to 1/2nd wave plate 123a, and reflection direction is parallel with the exit direction of the polarized light of transmission filter coating 121a./ 2nd wave plate 123a receive the reflected light of reflectance coating 122a and are converted into the light of vertical polarization attitude, thus so that the light of the same polarization state of this polarization conversion unit 120a outgoing.
But the problem of the light-emitting device of the prior art shown in Fig. 1 a is, polarization converter 120 comprises a plurality of polarization conversion unit, filter coating wherein and reflectance coating be keeping parallelism respectively, complex structure, cost compare is high, and there is error easily in the assembling of fly's-eye lens and polarization converter.
The utility model content
The technical matters that the utility model mainly solves provides a kind of simple in structure, the light-emitting device of lower-cost outgoing polarized light.
The utility model embodiment provides a kind of light-emitting device, it is characterized in that, comprising:
Excitation source, this excitation source is used for the outgoing exciting light;
The Wavelength converter that comprises first surface, first surface is used for receiving exciting light, this Wavelength converter is provided with material for transformation of wave length, this material for transformation of wave length is used for receiving exciting light to produce Stimulated Light, and at least part of light in the mixed light of at least part of this Stimulated Light or this Stimulated Light and unabsorbed exciting light is from the first surface outgoing;
Light collecting device be used for to be collected the emergent light of the first surface of Wavelength converter, and with this emergent light from the emitting light path outgoing, and this emitting light path is separated with the light path that incides the exciting light of Wavelength converter;
Square rod is used for making this emergent light from the exiting surface outgoing of this square rod behind the even light of the emergent light of light collecting device;
Polarization converter, this polarization converter comprises polarization spectro element, optical path adjusting element and polarization conversion device, the first prism and the second prism that the polarization spectro element comprises polarization beam splitter and sticks to these polarization beam splitter both sides;
The first prism comprises second surface and the 3rd surface, and the exiting surface close contact of second surface and square rod, the first prism are used for receiving the emergent light of square rod and guiding to polarization beam splitter;
Polarization beam splitter is used for the 3rd surface of light to the first prism of emergent light first polarization state of reflection square rod, light to the second prism of the second polarization state in the emergent light of transmission square rod, and the polarization direction of the first polarization state is perpendicular to the polarization direction of the second polarization state;
The second prism is used for guiding from the light outgoing of the second polarization state of polarization beam splitter transmission;
The optical path adjusting element comprises prism and reflecting element, and prism is used for the emergent light on the 3rd surface of reception the first prism, and this emergent light is guided to reflecting element; Reflecting element is used for this emergent light with the direction reflection parallel with the exit direction of the light of the second polarization state;
Polarization conversion device is used for the light of the first polarization state is converted to the light of the second polarization state;
Square rod is fixedly connected with polarization converter.
The utility model also provides a kind of optical projection system, and this light-source system comprises above-mentioned light-emitting device.
Compared with prior art, the utility model embodiment has following beneficial effect:
Among the utility model embodiment, Wavelength converter receives excitation light generation without the emergent light of polarization state, and this light without polarization state is incident to square rod after light collecting device is collected.Outgoing was to polarization converter after square rod was used for incident light spared light.Polarization converter comprises polarization spectro element, optical path adjusting element, and polarization conversion device.The polarization spectro element here comprises a polarization beam splitter and the first prism and the second prism that stick to these polarization beam splitter both sides, and the first prism guides to polarization beam splitter with the emergent light of square rod.The light of the first polarization state during polarization beam splitter reflects the incident light, the light of the second polarization state that transmission polarization direction is vertical with the first polarization state.The light of the first polarization state that the first prism will reflect guides to the optical path adjusting element, and the second prism is with the second polarization state light guiding outgoing of transmission.The optical path adjusting element receives from the light of the first prism incident and with its reflection, and reflection direction is identical with the light exit direction of the second polarization state.Polarization conversion device comprises on the emitting light path that appears at the first polarization state twice quarter-wave plate or appears at 1/2nd wave plates of the emitting light path last time of the first polarization state, being used for the first the conversion of polarized state is the second polarization state, so polarization converter will be converted to without the incident light of polarization state the light of the second polarization state of in the same direction outgoing.The polarization spectro element includes only a polarization beam splitter, and structure is relatively simple, and square rod is fixedly connected with polarization converter, and the two rigging error is less, and cost compare is low.
Description of drawings
Fig. 1 a is the structural representation of a kind of light-emitting device that can the outgoing polarized light in the prior art;
Fig. 1 b is the structural representation of polarization converter in Fig. 1 a illustrated embodiment;
Fig. 2 a is the structural front view of an embodiment of the utility model light-emitting device;
Fig. 2 b is the structural representation of polarization converter in the light-emitting device shown in Fig. 2 a;
Fig. 2 c is the schematic perspective view of the polarization converter shown in Fig. 2 a;
Fig. 3 is the another kind of structural representation of the polarization converter shown in Fig. 2 a;
Fig. 4 is the another kind of structural representation of the polarization converter shown in Fig. 2 a.
Embodiment
Below in conjunction with drawings and embodiments the utility model embodiment is elaborated.
Fig. 2 a is the structural front view of an embodiment of light-emitting device of the present utility model, and shown in Fig. 2 a, light-emitting device 200 comprises excitation source 210, Wavelength converter 220, light collecting device 230, square rod 240, polarization converter 250.
Fig. 2 b is the structural representation of polarization converter in the light-emitting device shown in Fig. 2 a, shown in Fig. 2 b, polarization converter 250 comprises polarization spectro element 2510, optical path adjusting element 2520, and polarization conversion device 2530, the first prism 2511 and the second prism 2512 that polarization spectro element 2510 comprises polarization beam splitter 2513 and sticks to these polarization beam splitter 2513 both sides.
The first prism 2511 comprises second surface 2511a and the 3rd surperficial 2511b, exiting surface 242 close contacts of second surface 2511a and square rod 240, and the first prism 2511 is used for receiving the emergent light of square rod 240 and guiding to polarization beam splitter 2513.
Polarization beam splitter 2513 is for the 3rd surface of light to the first prism of emergent light first polarization state of reflection square rod 240, the polarization direction of light to the second prism 2512, the first polarization states of the second polarization state is perpendicular to the polarization direction of the second polarization state in the emergent light of transmission square rod 240.
The second prism 2512 is used for guiding from the light outgoing of the second polarization state of polarization beam splitter 2513 transmissions.
Particularly, the first prism 2511 in the present embodiment and the second prism 2512 be the total reflection prism of principal section isosceles right triangle, the filter coating that polarization beam splitter 2513 forms for high low refractive index dielectric alternate plating, when this filter coating receives the light without skewness of certain incident angle, this filter coating can be divided into the incident light without polarization state the vertical two-way light of polarization state.The face at the hypotenuse place of the isosceles right triangle principal section of the first prism 2511 and the second prism 2512 is respectively 2511c and 2512c, filter coating 2513 is plated on the surface among surperficial 2511c and the 2512c and is fixing by cementing agent and another surface, fixed form is generally to be utilized adhesive bonds, three to form the principal section to be approximately foursquare hexahedron.The second surface of the first prism 2511 and the 3rd surface are respectively surperficial 2511a and the 2511c at the right-angle side place of isosceles right triangle principal section.In the practical application, in order to guarantee filter coating to the polarization spectro effect of incident light, the refractive index of the first prism 2511, the second prism 2512, filter coating 2513 and cementing agent should be more approaching, and guarantee that incident light incides on the filter coating 2513 at a certain angle.In the present embodiment, filter coating 2513 is 45 degree angles with the incident light incident direction, the light of filter coating 2513 reflections the first polarization state, the light of transmission the second polarization state, and vertical with the 3rd surperficial 2511b from the direction of propagation of the light of the first polarization state of filter coating 2513 reflection, it is less to incide the 3rd surperficial 2511b angle, has reduced the generation of total reflection.For the second prism 2512, vertical with the surperficial 2512a at a right-angle side place of the right-angle triangle principal section of the second prism 2512 from the direction of propagation of the light of the second polarization state of filter coating 2513 transmissions, can reduce equally the generation of total reflection on this surface.And the surperficial 2512b at another right-angle side place of the right-angle triangle principal section of the second prism 2512 is parallel with the optical propagation direction of the second polarization state, it is larger to incide this surperficial angle of light degree major part, can total reflection occur and reflex to surperficial 2512a outgoing on this surface, therefore the first prism in the present embodiment and the structure of the second prism are a kind of preferred structures, certainly, in other embodiment of utility model, the first prism and the second prism also can be other structures, for example the principal section is other shape prism, can realize too the guiding of incident light and the function of polarization spectro.
Optical path adjusting element 2520 comprises prism 2521 and reflecting element 2522, prism 2521 comprises the 4th surperficial 2521a and the 5th surperficial 2521b, the 4th surperficial 2521a receives the emergent light of the 3rd surperficial 2511b of the first prism 2511, prism guides to the 5th surperficial 2521b with this emergent light, reflecting element 2522 is used for being incident to the light reflection of the 5th surperficial 2521b, and reflection direction is parallel with the exit direction of the light of the second polarization state.
Particularly, the prism 2521 here is the prism of right-angle triangle for the principal section, the 4th surperficial 2521a is the surface at a right-angle side place of right-angle triangle principal section, the 5th surperficial 2521b is the surface at the hypotenuse place of right-angle triangle principal section, this surface is parallel with polarization beam splitter 2513, and is parallel with the exit direction of the second polarization state to guarantee this surperficial reflected light exit direction.Reflecting element 2522 can be the devices such as catoptron, and preferably, reflecting element 2522 and the 5th surperficial 2521b close contact are beneficial to fix, and this moment, reflecting element can be the reflectance coating that is plated in the 5th surperficial 2521b.
By above description as can be known, Wavelength converter 220 receives excitation light generation without the light of polarization state, and this light without polarization state is incident to square rod 240 after light collecting device 230 is collected.Square rod 240 is incident to polarization converter after incident light is spared light.Polarization converter 250 comprises polarization spectro element 2510, optical path adjusting element 2520, and polarization conversion device 2530.To optical path adjusting element 2520, the light of the second polarization state that transmission polarization direction is vertical with the first polarization state makes its direct outgoing without the light of the first polarization state in the polarization state light in polarization spectro element 2510 reflection here.Optical path adjusting element 2520 receives from the light of polarization spectro element 2510 incidents and with its reflection, and reflection direction is identical with the light exit direction of the second polarization state.Polarization conversion device 2530 is 1/2nd wave plates that appear at the emitting light path last time of the first polarization state, being used for the first the conversion of polarized state is the second polarization state, therefore polarization converter 220 will be converted to without the incident light of polarization state the light of the second polarization state, and the hot spot of the polarized light after the conversion has enlarged one times with respect to the hot spot face without the incident light of skewness.The polarization spectro element includes only a polarization beam splitter, and structure is relatively simple, and square rod is fixedly connected with polarization converter, and the two rigging error is less, adjust easily, so the cost of this light-emitting device will reduce greatly.
In the present embodiment, wavelength conversion layer 221 includes only a zone, and this region division has yellow fluorescent powder, and wavelength conversion layer 221 absorbs blue laser to produce yellow Stimulated Light, and this yellow Stimulated Light becomes the white light outgoing with unabsorbed blue light.In other embodiment of the present utility model, wavelength conversion layer 221 can comprise zone more than two, at least one is provided with material for transformation of wave length in the zone more than two for this, and other zone can arrange the different material of function, such as the material for transformation of wave length of other kind or scattering material etc.For example, wavelength conversion layer 221 comprises Three regions, be respectively arranged with red fluorescence powder, green emitting phosphor and scattering material, red fluorescence powder and green emitting phosphor absorb respectively blue laser and produce ruddiness and green glow, scattering material receive blue laser and with its scattering with eliminating coherence after outgoing, so wavelength conversion layer 221 can red bluish-green three coloured light of outgoing.
In addition, because material for transformation of wave length always comprises the part exciting light to exciting Optical Absorption can not reach absolutely in the emergent light of wavelength conversion layer 221.Therefore, in other embodiment of the present utility model, when not needing exciting light in the emergent light of light-emitting device, light-emitting device can also arrange filtering apparatus to be come the emergent light of wavelength conversion layer is filtered.Filtering apparatus comprises optical filter, can receive the emergent light of wavelength conversion layer, and filters out wherein at least part of exciting light.In the present embodiment, filtering apparatus can be arranged on the first surface of Wavelength converter, this filtering apparatus can the transmission Stimulated Light and the exciting light of low-angle incident, the exciting light of reflection wide-angle, and the exciting light composition in the Wavelength converter emergent light will reduce greatly.In addition, the optical filtering colour wheel can also be set, the optical filtering colour wheel can the transmission exciting light, the reflection Stimulated Light, and the optical filtering colour wheel rotates synchronously with Wavelength converter, can filter out the exciting light of Wavelength converter emergent light, and light-emitting device can an outgoing Stimulated Light at this moment.
Polarization beam splitter 2513 in the present embodiment is filter coatings, and its advantage is technical maturity, be coated with than being easier to, but filter coating is relatively more responsive to the angle of light degree.When the dispersion angle of incident light was larger, the ratio of the polarized light in filter coating transmitted light and the reflected light will reduce.Preferably, polarization beam splitter 2513 can be the polarization wiregrating, and with respect to filter coating, the angle sensitivity of polarization wiregrating is much lower, can the incident light that dispersion angle is larger be divided into the light of two kinds of vertical polarization attitudes.
Preferably, square rod is the taper square rod, and the area of the incidence surface 241 of taper square rod is less than the area of exiting surface 242.Because polarization beam splitter 2513 can be relatively more responsive to the angle of incident light, and the taper square rod not only can spare light to incident light, can also reduce the dispersion angle of incident light, thus the taper square rod be provided with the light action that divides that is beneficial to polarization beam splitter 2513.
Preferably, the both sides ratio that is shaped as rectangle and this rectangle of the exiting surface of square rod 240 is 3:2 or 9:8.Be applied to the Projection Display occasions such as projection light source, the Aspect Ratio in Projection Display zone generally is 3:4 or 9:16, and polarization converter can be with one times of the enlarged areas of launching spot, Aspect Ratio also can expand and was twice this moment, when therefore the exiting surface both sides ratio of square rod 240 is 3:2 or 9:8, as long as the position of the exiting surface of square rod 240 is set, so that the facula area of the emergent light of polarization converter is twice in the short side direction expansion of exiting surface, the ratio of polarization converter outgoing hot spot is 3:4 or 9:16 just, does not need again hot spot to be carried out Shape correction in follow-up light path.Similarly, the Aspect Ratio of the exiting surface of square rod 240 also can be 3:8 or 9:32, only needs to adjust the position of square rod exiting surface, thereby so that the facula area of the emergent light of polarization converter expands to be twice at the short side direction of exiting surface gets final product.
Because the incident light of the first prism has certain dispersion angle, incident light may incide on the surface that does not need emergent light of the first prism and outgoing, therefore preferably, except the second surface of the first prism 2511, the 3rd surface, with the surface of polarization light-dividing surface close contact the surface in, have at least a surface to be provided with the reflection horizon.Fig. 2 c is the schematic perspective view of the polarization converter shown in Fig. 2 b, shown in Fig. 2 c, upper and lower surfaces 2511d and the 2511e of the first prism do not need emergent light, so its surface can arrange the reflection horizon, and the light that incides surperficial 2511d and 2511e is reflexed to polarization beam splitter utilization.For the second prism and prism, similarly, do not need the surface of emergent light the reflection horizon can be set equally to reduce light loss.
Need the Fresnel on the exit facet to lose in order to reduce at light, preferably, the surface of the second polarized light outgoing is coated with anti-reflection film on the second prism.Similarly, the surface of the emergent light on the prism also can be coated with anti-reflection film to reduce light loss.
In the existing structure, the polarization spectro element 2510 of light splitting device 250 is fixedly connected with often with optical path adjusting element 2520, is fixing between the 4th surface of the 3rd surface of the first prism 2511 by close contact and prism 2521 here.But the larger light of dispersion angle in the incident light of the second surface 2511a of the first prism may not can incide polarization beam splitter 2513 and is directly incident on the 3rd surperficial 2511b at this moment, and further is incident to prism 2521.Therefore, preferably, there is air-gap between the 3rd surperficial 2511b of the first prism 2510 and the 4th surperficial 2521a of prism, because the light that incides the 3rd surface 2511 of the first prism all is wide-angle incident basically, total reflection can occur and was reflected onto the polarization beam splitter direction and utilizes in this part light this moment.
Except the structure shown in Fig. 2 b, the structure of the polarization converter in the present embodiment can also have the various structures form, is elaborated below in conjunction with diagram.Fig. 3 is the another kind of structural representation of the polarization converter shown in Fig. 2 a, as shown in Figure 3, the difference of polarization converter is shown in polarization converter shown in Figure 3 and Fig. 2 b, and 1/2nd wave plates 330 in the polarization converter are between the 4th surperficial 321a of the 3rd surperficial 331a of the first prism 331 and prism 321.In fact, / 2nd wave plates not only can be on the light-emitting face of prism 2521 and between the 3rd surperficial 331a and the 4th surperficial 321a shown in Figure 3, can also be positioned at other position, this 1/2nd wave plate 2530 of light transmission that only needs to guarantee the first polarization state once gets final product.
Polarization conversion device in the present embodiment can also be quarter-wave plate, only need guarantee that quarter-wave plate appears on the emitting light path of the first polarization state twice and gets final product.Fig. 4 is the another kind of structural representation of the polarization converter shown in Fig. 2 a, as shown in Figure 4, be with the difference of polarization converter shown in Figure 3, polarization converter does not comprise 1/2nd wave plates and comprises quarter-wave plate 420, this quarter-wave plate 420 is between reflecting element 411 and prism 412, and the light of the first polarization state is incident to be incident to reflecting element 411 and to be reflected behind the quarter-wave plate 420 and again passes through quarter-wave plate 420.Because the light of the first polarization state successively incides quarter-wave plate twice, the light of the first polarization state will be converted to the light of the second polarization state.In other embodiment of the present utility model, also can make two quarter-wave plates to be set on the light path of the light of the first polarization state, so that the light of the first polarization state respectively by two quarter-wave plates respectively once also can be realized the conversion of polarized state.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
The utility model embodiment also provides a kind of optical projection system, comprises light-emitting device, and this light-emitting device can have structure and the function in the various embodiments described above.This optical projection system can adopt various shadow casting techniques, for example liquid crystal display (LCD, Liquid Crystal Display) shadow casting technique, digital light path processor (DLP, Digital Light Processor) shadow casting technique.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. a light-emitting device is characterized in that, comprising:
Excitation source, this excitation source is used for the outgoing exciting light;
The Wavelength converter that comprises first surface, described first surface is used for receiving described exciting light, this Wavelength converter is provided with material for transformation of wave length, this material for transformation of wave length is used for receiving described exciting light to produce Stimulated Light, and at least part of light in the mixed light of at least part of this Stimulated Light or this Stimulated Light and unabsorbed exciting light is from described first surface outgoing;
Light collecting device is used for collecting the emergent light of the first surface of described Wavelength converter, and with this emergent light from the emitting light path outgoing, and this emitting light path is separated with the light path that incides the exciting light of described Wavelength converter;
Square rod is used for making this emergent light from the exiting surface outgoing of this square rod behind the even light of the emergent light of described light collecting device;
Polarization converter, this polarization converter comprises polarization spectro element, optical path adjusting element and polarization conversion device, the first prism and the second prism that described polarization spectro element comprises polarization beam splitter and sticks to these polarization beam splitter both sides;
Described the first prism comprises second surface and the 3rd surface, and the exiting surface close contact of described second surface and described square rod, described the first prism are used for receiving the emergent light of described square rod and guiding to described polarization beam splitter;
Described polarization beam splitter is used for reflecting the light of emergent light the first polarization state of described square rod to the 3rd surface of described the first prism, the light of the second polarization state is to described the second prism in the emergent light of the described square rod of transmission, and the polarization direction of described the first polarization state is perpendicular to the polarization direction of the second polarization state;
Described the second prism is used for guiding from the light outgoing of the second polarization state of described polarization beam splitter transmission;
Described optical path adjusting element comprises prism and reflecting element, and described prism is used for receiving the emergent light on the 3rd surface of described the first prism, and this emergent light is guided to described reflecting element; Described reflecting element is used for this emergent light with the direction reflection parallel with the exit direction of the light of described the second polarization state;
Described polarization conversion device is used for the light of the first polarization state is converted to the light of the second polarization state;
Described square rod is fixedly connected with polarization converter.
2. light-emitting device according to claim 1, it is characterized in that: described light collecting device is curved reflectors, described curved reflectors comprises reflecting surface, and this reflecting surface is collected behind the emergent light of first surface of described Wavelength converter and with this emergent light outgoing.
3. light-emitting device according to claim 2, it is characterized in that: described curved reflectors comprises a light hole, described reflecting surface be centered around this light hole around, described exciting light sees through this light hole and incides on the described wavelength conversion layer.
4. light-emitting device according to claim 1, it is characterized in that: described square rod is tapered rod, and the area of the incidence surface of described taper square rod is less than the area of exiting surface.
5. light-emitting device according to claim 1, it is characterized in that: the both sides ratio that is shaped as rectangle and this rectangle of the exiting surface of described square rod is 3: 2 or 9: 8 or 3: 8 or 9: 32.
6. light-emitting device according to claim 1, it is characterized in that: described polarization beam splitter is filter coating or polarization wiregrating.
7. light-emitting device according to claim 1 is characterized in that: the second surface of described the first prism, the 3rd surface, with the surface of polarization beam splitter close contact outside the surface in, have at least a surface to be provided with the reflection horizon.
8. light-emitting device according to claim 1, it is characterized in that: the surface of the light outgoing of the second polarization state on described the second prism is coated with anti-reflection film.
9. light-emitting device according to claim 1 is characterized in that: have air-gap between described polarization spectro element and the described optical path adjusting element.
10. an optical projection system is characterized in that, comprises such as each described light-emitting device in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204522882U CN202886822U (en) | 2012-08-31 | 2012-09-06 | Light-emitting device and related projection system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210319696 | 2012-08-31 | ||
| CN201210319696.5 | 2012-08-31 | ||
| CN2012204522882U CN202886822U (en) | 2012-08-31 | 2012-09-06 | Light-emitting device and related projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886822U true CN202886822U (en) | 2013-04-17 |
Family
ID=48078229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204522882U Expired - Lifetime CN202886822U (en) | 2012-08-31 | 2012-09-06 | Light-emitting device and related projection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886822U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681094A (en) * | 2016-12-23 | 2017-05-17 | 海信集团有限公司 | Fluorescence excitation device, projection light source and projection equipment |
| CN106707669A (en) * | 2016-12-23 | 2017-05-24 | 海信集团有限公司 | Fluorescence excitation device, projection light source and projection equipment |
| CN106704866A (en) * | 2016-07-11 | 2017-05-24 | 广州市新晶瓷材料科技有限公司 | Method and device for converting laser into white light under laser excitation as well as application thereof |
| CN106773481A (en) * | 2016-12-23 | 2017-05-31 | 海信集团有限公司 | A kind of projection light source and projector equipment |
| CN107145029A (en) * | 2017-06-20 | 2017-09-08 | 海信集团有限公司 | Light supply apparatus |
| CN107526236A (en) * | 2017-09-29 | 2017-12-29 | 鲜善洪 | A kind of polarized light separator and optical projection system |
| CN108267920A (en) * | 2016-02-26 | 2018-07-10 | 海信集团有限公司 | A kind of laser light-source device |
| CN108561803A (en) * | 2018-05-09 | 2018-09-21 | 歌尔科技有限公司 | A kind of luminescence component and electronic product |
| CN109298523A (en) * | 2017-07-25 | 2019-02-01 | 深圳光峰科技股份有限公司 | The light-source system of colour wheel and the application colour wheel, optical projection system |
| CN109483886A (en) * | 2018-12-21 | 2019-03-19 | 绍兴市上虞区幻想动力机器人科技有限公司 | A kind of liquid crystal display 3D printing polarized light source |
| TWI658292B (en) * | 2018-06-20 | 2019-05-01 | 中強光電股份有限公司 | Illumination system and projection apparatus |
| CN110792949A (en) * | 2018-08-01 | 2020-02-14 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| CN110879504A (en) * | 2018-09-06 | 2020-03-13 | 鸿富锦精密工业（深圳）有限公司 | Solid-state light source device |
| WO2021037240A1 (en) * | 2019-08-30 | 2021-03-04 | 深圳光峰科技股份有限公司 | Light source and projection device |
| WO2021093565A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳市绎立锐光科技开发有限公司 | Light source apparatus |
| WO2021135963A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳光峰科技股份有限公司 | Polarization converter, and light source system thereof |
| TWI766093B (en) * | 2018-09-06 | 2022-06-01 | 鴻海精密工業股份有限公司 | Solid state light source device |
-
2012
- 2012-09-06 CN CN2012204522882U patent/CN202886822U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267920A (en) * | 2016-02-26 | 2018-07-10 | 海信集团有限公司 | A kind of laser light-source device |
| CN106704866A (en) * | 2016-07-11 | 2017-05-24 | 广州市新晶瓷材料科技有限公司 | Method and device for converting laser into white light under laser excitation as well as application thereof |
| CN106707669A (en) * | 2016-12-23 | 2017-05-24 | 海信集团有限公司 | Fluorescence excitation device, projection light source and projection equipment |
| CN106773481A (en) * | 2016-12-23 | 2017-05-31 | 海信集团有限公司 | A kind of projection light source and projector equipment |
| CN106681094A (en) * | 2016-12-23 | 2017-05-17 | 海信集团有限公司 | Fluorescence excitation device, projection light source and projection equipment |
| CN106707669B (en) * | 2016-12-23 | 2018-08-24 | 海信集团有限公司 | A kind of fluorescence excitation device, projection light source and projection device |
| CN107145029B (en) * | 2017-06-20 | 2018-10-26 | 海信集团有限公司 | Light supply apparatus |
| CN107145029A (en) * | 2017-06-20 | 2017-09-08 | 海信集团有限公司 | Light supply apparatus |
| CN109298523A (en) * | 2017-07-25 | 2019-02-01 | 深圳光峰科技股份有限公司 | The light-source system of colour wheel and the application colour wheel, optical projection system |
| CN107526236A (en) * | 2017-09-29 | 2017-12-29 | 鲜善洪 | A kind of polarized light separator and optical projection system |
| CN108561803A (en) * | 2018-05-09 | 2018-09-21 | 歌尔科技有限公司 | A kind of luminescence component and electronic product |
| CN108561803B (en) * | 2018-05-09 | 2024-02-06 | 歌尔科技有限公司 | Light-emitting component and electronic product |
| TWI658292B (en) * | 2018-06-20 | 2019-05-01 | 中強光電股份有限公司 | Illumination system and projection apparatus |
| CN110792949B (en) * | 2018-08-01 | 2022-05-03 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| CN110792949A (en) * | 2018-08-01 | 2020-02-14 | 深圳市绎立锐光科技开发有限公司 | Light source system and light emitting device |
| CN110879504A (en) * | 2018-09-06 | 2020-03-13 | 鸿富锦精密工业（深圳）有限公司 | Solid-state light source device |
| TWI766093B (en) * | 2018-09-06 | 2022-06-01 | 鴻海精密工業股份有限公司 | Solid state light source device |
| CN109483886B (en) * | 2018-12-21 | 2024-01-30 | 深圳市龙祥卓越电子科技有限公司 | Polarized light source for liquid crystal display 3D printing |
| CN109483886A (en) * | 2018-12-21 | 2019-03-19 | 绍兴市上虞区幻想动力机器人科技有限公司 | A kind of liquid crystal display 3D printing polarized light source |
| WO2021037240A1 (en) * | 2019-08-30 | 2021-03-04 | 深圳光峰科技股份有限公司 | Light source and projection device |
| CN112526807A (en) * | 2019-08-30 | 2021-03-19 | 深圳光峰科技股份有限公司 | Light source and projection equipment |
| WO2021093565A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳市绎立锐光科技开发有限公司 | Light source apparatus |
| WO2021135963A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳光峰科技股份有限公司 | Polarization converter, and light source system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202886822U (en) | Light-emitting device and related projection system | |
| US9645480B2 (en) | Light source module and projection apparatus having the same | |
| CN102084177B (en) | Light source module | |
| CN102890398B (en) | Light-emitting device and relevant projecting system | |
| CN103913936B (en) | Light-emitting device and optical projection system | |
| CN201780448U (en) | Projection optics engine with even and clear image | |
| CN203217230U (en) | Illuminating device and projection system | |
| US11243460B2 (en) | Light source device and projection system | |
| US8403496B2 (en) | High efficiency micro projection optical engine | |
| CN205353549U (en) | Light source device and lighting device | |
| CN102096141B (en) | A kind of α-BBO polarizing prism | |
| CN101546045A (en) | Polarization converter and projection system using same | |
| WO2012024850A1 (en) | Optical structure of led liquid crystal projector with single polarization converter | |
| TWI489855B (en) | Light source system for stereoscopic projection | |
| CN101995743A (en) | Optical projection engine with uniform brightness and color | |
| CN105717564B (en) | Depolarization pentagonal prism and preparation method thereof | |
| CN106950785A (en) | A kind of light supply apparatus and lighting device | |
| CN201203713Y (en) | One-chip type liquid crystal projecting system | |
| CN112799234A (en) | Color combination device and method and lighting system | |
| CN206178194U (en) | Novel fine wavelength division multiplexing module of miniature tape trailer | |
| CN210894973U (en) | Laser light source system | |
| CN210720998U (en) | Projection optical system and projection apparatus | |
| CN100460930C (en) | LCOS optical projection system | |
| CN111781791A (en) | Light source system and projection equipment | |
| CN218728383U (en) | Y-shaped optical structure with extended exit pupil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171103 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town tea light road Shenzhen city integrated circuit design and application of Industrial Park 401 Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518057, Guangdong, Nanshan District Shenzhen science and Technology Park, South Road, twelve square building, third floor Patentee before: YLX Inc. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address after: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Guangdong province Shenzhen Nanshan District Xili town Cha Guang road Shenzhen integrated circuit design application Industrial Park 401 Patentee before: APPOTRONICS Corp.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |