CN201984280U - Projecting apparatus - Google Patents
Projecting apparatus Download PDFInfo
- Publication number
- CN201984280U CN201984280U CN2011201097082U CN201120109708U CN201984280U CN 201984280 U CN201984280 U CN 201984280U CN 2011201097082 U CN2011201097082 U CN 2011201097082U CN 201120109708 U CN201120109708 U CN 201120109708U CN 201984280 U CN201984280 U CN 201984280U
- Authority
- CN
- China
- Prior art keywords
- display chip
- micro display
- polarized light
- light
- micro
- 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
Abstract
The utility model discloses a projecting apparatus, which comprises a light source, a polarization spectral unit, a first micro-display chip, a second micro-display chip, a first six-shaft regulation device, a second six-shaft regulation device and a projection lens. The light source emits light beams, and the polarization spectral unit is used for splitting the light beams. An S-polarized light and a P-polarized light which are split are combined into one light beam after being regulated respectively through a space arrangement of the polarization spectral unit, the first micro-display chip, the second micro-display chip and the projection lens, so that the light beams emitted by the projection lens can comprise both the S-polarized light and the P-polarized light which can be used for a 3D (three dimensional) display after being projected on a metal screen successively. The projecting apparatus is low in cost, micro in size and easy to operate. Operations such as playing focus are not provided with obvious differences with an ordinary 2D (two dimensional) projecting apparatus, thereby bringing convenience in operation when used for playing a 3D movie, bringing convenience in popularization of the playing of the 3D movie, enabling users to watch a 3D video at home.
Description
Technical field
The utility model relates to field of projection display, particularly relates to a kind of projector.
Background technology
Existing 3D movie, be the twin-lens mode, need two identical general projectors, before the projection lens of two projector, add mutually orthogonal linear polarization eyeglass respectively, by the polarization of linear polarization eyeglass to light beam, two linear polarization eyeglasses are outgoing S polarized light and P-polarized light respectively, this S polarized light and P-polarized light is projected on the screen that does not change incident light polarization state, as metal screen, frosted screen.Afterwards, the beholder wears the 3D glasses, and the left and right sides eyeglass of 3D glasses adopts the polarized lenses of different polarization direction respectively, and beholder's right and left eyes just can receive the picture of one of them polarization direction respectively like this, again can the compound stereoscopic image through brain.The broadcast mode of above-mentioned 3D film, cost is very high, and operate very complicated, at first, predetermined fixed is wanted in the screen position, needs respectively two projector focusing then and adjusts the angle of inclination of projection lens projects, the image high precision that projects on the screen is overlapped, professional requirement to the operator is high, is difficult to popularly, only is applied to movie theatre at present.
The utility model content
Technical problem to be solved in the utility model is: remedy above-mentioned the deficiencies in the prior art, propose a kind of projector, make when it is applied to the 3D movie easy and simple to handlely, make things convenient for the popular of 3D movie.
Technical matters of the present utility model is solved by following technical scheme:
A kind of projector comprises light source, polarization spectro unit, first micro display chip, second micro display chip, the one or six axis adjustment device, the two or six axis adjustment device and projection lens; Described light emitted illuminating bundle; Described polarization spectro unit is arranged at the outlet of described light source, and receiving beam also reflects the S polarized light in the receiving beam, the P-polarized light in the transmission receiving beam; Described first micro display chip and described second micro display chip are arranged at the adjacent light outlet side of described polarization spectro unit; Described first micro display chip receives the S polarized light of described illuminating bundle, and it is modulated into the P-polarized light, and the described polarization spectro of reflected back unit; Described second micro display chip receives the P-polarized light of described illuminating bundle, and it is modulated into S polarized light, and the described polarization spectro of reflected back unit; The one or six axis adjustment device is connected with described first micro display chip, is used to adjust the position of described first micro display chip; The two or six axis adjustment device is connected with described second micro display chip, is used to adjust the position of described second micro display chip; Described projection lens and described first micro display chip described polarization spectro unit at interval are oppositely arranged, and be used to receive the light beam of described polarization spectro unit outgoing and it is amplified output.
The beneficial effect that the utility model is compared with the prior art is:
Projector of the present utility model, utilize of the carry out beam split of polarization spectro unit to light beam, and the space of passing through polarization spectro unit and first micro display chip, second micro display chip and projection lens is provided with, a synthetic again light beams after the S polarized light that separates and P-polarized light modulated respectively, make that the light beam of projector outgoing promptly is the light beam that comprises S polarized light and P-polarized light, follow-uply project to the demonstration that promptly can be used for 3D on the metal screen.Projector cost of the present utility model is low, microminiaturization, operation easily, play focusing and wait operation and common not obviously difference of 2D projector, make when it is applied to the 3D movie easy and simple to handlely, make things convenient for the popular of 3D movie, can allow masses be in and just can watch the 3D image.
Description of drawings
Fig. 1 is the inside index path of the polarization spectro unit in the projector of the utility model embodiment when selecting the grating polarization optical splitter for use;
Fig. 2 is the inside index path of the polarization spectro unit in the projector of the utility model embodiment when selecting polarization splitting prism for use;
Fig. 3 is first micro display chip and the second micro display chip input picture graph of a relation of the utility model embodiment;
Fig. 4 is the image that the projector of the utility model embodiment presents on exterior screen when importing image shown in Figure 2.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further details.
As shown in Figure 1, be the inner index path of the projector of this embodiment.Projector comprises light source 1, polarization spectro unit 2, first micro display chip 3, second micro display chip the 4, the 1 axis adjustment device the 5, the 26 axis adjustment device 6 and projection lens 7.
Wherein, light source 1 is LED, the emissive lighting light beam.Light source also can be selected other unpolarized light source such as Halogen lamp LED for use except that selecting for use the LED, also can select the linear polarization light source that comprises P-polarized light and S polarized light for use.
Preferably, the parameter of polarization spectro unit 2 is: Rs＞0.8; Tp＞0.8; The beam split coefficient
For: 0.9≤
≤ 1; The reflected light extinction ratio
For:
＞100:1; The transmitted light extinction ratio
For:
＞100:1; Wherein, Rs is the reflectivity to S polarized light, and Rp is the reflectivity to the P-polarized light, and Ts is the transmissivity to S polarized light, and Tp is the transmissivity to the P-polarized light.When the parameter of polarization spectro unit 2 satisfies above-mentioned the setting, can play better spectrophotometric result to P-polarized light and S polarized light, P-polarized light of telling and S polarized light do not have each other crosstalks, when the synthetic light beam of follow-up formation is used for the 3D Projection Display, can make the chroma-luminance high conformity of the image of projection, the good contrast of image (dark clearly demarcated), (right and left eyes is only seen a wherein width of cloth image respectively to the 3D good contrast, image is crosstalked lower), promptly bring 3D viewing effect more true to nature to the beholder.
First micro display chip 3 and second micro display chip 4 are the LCOS micro-display, and both are arranged at the adjacent light outlet side 21 and 22 of polarization spectro unit 2.When the S polarized light component in the illuminating bundle was incident to first micro display chip 3, first micro display chip 3 was modulated into the P-polarized light with the S polarized light component of illuminating bundle, and reflected back polarization spectro unit 2; When the P-polarized light component in the illuminating bundle was incident to second micro display chip 4, first micro display chip 3 was modulated into S polarized light with the P-polarized light component of illuminating bundle, and reflected back polarization spectro unit 2.When the P-polarized light reflected back polarization spectro unit 2 after the above-mentioned modulation, polarization spectro unit 2 is to its transmission, when the S polarized light reflected back polarization spectro unit 2 after the above-mentioned modulation, polarization spectro unit 2 is to its reflection, behind polarization spectro unit 2, the P-polarized light of modulation and S polarized light synthesize a light beams.
Preferably, the size that above-mentioned polarization spectro unit 2 projects to first micro display chip, 3 place sides and second micro display chip, 4 place sides is respectively L1 and L2, described first micro display chip effectively show dimensions as L3, described second micro display chip effectively show dimensions as L4, satisfy: L1＞L3, L2＞L4.Satisfy this size relation, can guarantee that the polarization spectro unit 2 that passes through that the image information of each micro display chip can be complete is delivered to projection lens 7.
The projection lens 7 and first micro display chip 3 are oppositely arranged polarization spectro unit 2 at interval, promptly are arranged at every polarization spectro unit 2 light exit sides 23, be used to receive the synthetic light beam of polarization spectro unit 2 outgoing and it is amplified output.The amplification light beam of projection lens 7 outputs is transmitted through extraneous the change on the screen of incident light polarization state, as metal screen, frosted screen etc., is used for the 3D Projection Display and uses.
The one or six axis adjustment device 5 is connected with first micro display chip 3, is used to adjust the position of first micro display chip 3; The two or six axis adjustment device 6 is connected with second micro display chip 4, is used to adjust the position of second micro display chip 4.Two 6 axis adjustment devices comprise XY translation slide unit, XY gradient slide unit, Z axial translation guide rail, and around the platform of Z axle rotation, respectively the position of corresponding LCOS micro-display is adjusted, thereby to the sharpness of the image that arrives projection lens 7, the best adjustment is carried out in aspects such as consistance.
When using projector, at first utilize the position of 5 pairs first micro display chips 3 of the one or six axis adjustment device to adjust: 1) the XY translation slide unit of the one or six axis adjustment device 5 to be adjusted, made the center of LCOS micro-display and the central axis of projection lens 7 carry out centering; 2) to first micro display chip, 3 input image information sources, adjust the Z axial translation guide rail of the one or six axis adjustment device 5, make the clear picture of projector projects at extraneous curtain; 3) the Z axle rotation platform of the one or six axis adjustment device 5 is adjusted, making projector projects is horizontality at the image of extraneous curtain; 4) XY gradient slide unit and the Z axial translation guide rail to the one or six axis adjustment device 5 cooperates adjustment, makes the image view picture clear unanimity of projector projects at extraneous curtain.Then, utilize the position of 6 pairs second micro display chips 4 of the two or six axis adjustment device to adjust according to above-mentioned method of adjustment again, it is clear that the image that first micro display chip 3 and second micro display chip 4 are projected overlaps fully.
Need explanatorily be that the image information source to input when this projector uses also has certain requirement.When first micro display chip 3 and second micro display chip, 4 input image information sources are identical image, first micro display chip 3 and the identical image of second micro display chip, 4 meeting display directions, but behind polarization spectro unit 2 and projection lens 7, under the rolling action of light beam, both images on exterior screen are " mirror image " relation each other, then can't be used for the 3D Projection Display.And when first micro display chip 3 and second micro display chip, 4 input image information sources are " mirror images " when concerning mutually, as shown in Figure 3, content with input is shown in the AB, the image of first micro display chip, 3 inputs should be AB, the image of second micro display chip, 4 inputs is BA, and then under the rolling action of light beam, both can realize the image of " binocular parallax " on exterior screen, as shown in Figure 4, just can be used for the 3D Projection Display.
In the projector of this embodiment, utilize the light-splitting processing of the 2 pairs of light beams in polarization spectro unit, the spatial relation that cooperates first micro display chip 3, second micro display chip 4 and polarization spectro unit 2, first micro display chip 3 and second micro display chip 4 receive S polarized light and P-polarized light separately respectively, and the polarisation of light direction that receives is rotated 90 ° modulation, light after the modulation is the 2 synthetic light beams through the polarization spectro unit again, output after projection lens 5 amplifies.The light beam of projector outgoing promptly is the light beam that comprises S polarized light and P-polarized light, follow-uply projects to the demonstration that promptly can be used for 3D on the metal screen.When using, operates easily by projector, get final product by the one or six axis adjustment device 5 and 6 adjustment of the two or six axis adjustment device, play focusing and wait operation and common not obviously difference of 2D projector, make when it is applied to the 3D movie easy and simple to handlely, make things convenient for the popular of 3D movie.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, make some substituting or obvious modification under the prerequisite of the utility model design not breaking away from, and performance or purposes are identical, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a projector is characterized in that: comprise light source, polarization spectro unit, first micro display chip, second micro display chip, the one or six axis adjustment device, the two or six axis adjustment device and projection lens;
Described light emitted illuminating bundle;
Described polarization spectro unit is arranged at the outlet of described light source, and receiving beam also reflects the S polarized light in the receiving beam, the P-polarized light in the transmission receiving beam;
Described first micro display chip and described second micro display chip are arranged at the adjacent light outlet side of described polarization spectro unit; Described first micro display chip receives the S polarized light of described illuminating bundle, and it is modulated into the P-polarized light, and the described polarization spectro of reflected back unit; Described second micro display chip receives the P-polarized light of described illuminating bundle, and it is modulated into S polarized light, and the described polarization spectro of reflected back unit;
The one or six axis adjustment device is connected with described first micro display chip, is used to adjust the position of described first micro display chip;
The two or six axis adjustment device is connected with described second micro display chip, is used to adjust the position of described second micro display chip;
Described projection lens and described first micro display chip described polarization spectro unit at interval are oppositely arranged, and be used to receive the light beam of described polarization spectro unit outgoing and it is amplified output.
2. projector according to claim 1 is characterized in that: the parameter of described biasing spectrophotometric unit is: Rs＞0.8; Tp＞0.8; The beam split coefficient
For: 0.9≤
≤ 1; The reflected light extinction ratio
For:
＞100:1; The transmitted light extinction ratio
For:
＞100:1; Wherein, Rs is the reflectivity to S polarized light, and Rp is the reflectivity to the P-polarized light, and Ts is the transmissivity to S polarized light, and Tp is the transmissivity to the P-polarized light.
3. projector according to claim 1 and 2, it is characterized in that: described polarization spectro unit is at the projection size of the described first micro display chip place side effective display size greater than described first micro display chip, and described polarization spectro unit is at the projection size of the described second micro display chip place side effective display size greater than described second micro display chip.
4. projector according to claim 1 is characterized in that: described polarization spectro unit is grating polarization optical splitter or polarization splitting prism.
5. projector according to claim 1 is characterized in that: described first micro display chip and described second micro display chip are the LCOS micro-display.
6. projector according to claim 1 is characterized in that: described the one or six axis adjustment device and the two or six axis adjustment device comprise XY translation slide unit, XY gradient slide unit, Z axial translation guide rail and the platform that rotates around the Z axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201097082U CN201984280U (en) | 2011-04-14 | 2011-04-14 | Projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201097082U CN201984280U (en) | 2011-04-14 | 2011-04-14 | Projecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984280U true CN201984280U (en) | 2011-09-21 |
Family
ID=44611736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201097082U Expired - Lifetime CN201984280U (en) | 2011-04-14 | 2011-04-14 | Projecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984280U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162982A (en) * | 2011-04-14 | 2011-08-24 | 清华大学深圳研究生院 | Projector and optical path control method thereof |
| CN102495521A (en) * | 2011-12-08 | 2012-06-13 | 四川省雷克赛恩电子科技有限公司 | Polarized-light 3D (three-dimension) projector with single lens and double LCDs (Liquid Crystal Display) |
| CN104504945A (en) * | 2015-01-12 | 2015-04-08 | 鲁杨 | Physics teaching projector |
| CN106595481A (en) * | 2016-12-14 | 2017-04-26 | 海信集团有限公司 | Light spot measurement method and device for laser projection system |
| CN108153092A (en) * | 2018-01-03 | 2018-06-12 | 京东方科技集团股份有限公司 | Reflection type optical modulation device, projecting apparatus and AR/VR displays |
-
2011
- 2011-04-14 CN CN2011201097082U patent/CN201984280U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162982A (en) * | 2011-04-14 | 2011-08-24 | 清华大学深圳研究生院 | Projector and optical path control method thereof |
| CN102162982B (en) * | 2011-04-14 | 2013-01-30 | 清华大学深圳研究生院 | Projector and optical path control method thereof |
| CN102495521A (en) * | 2011-12-08 | 2012-06-13 | 四川省雷克赛恩电子科技有限公司 | Polarized-light 3D (three-dimension) projector with single lens and double LCDs (Liquid Crystal Display) |
| CN104504945A (en) * | 2015-01-12 | 2015-04-08 | 鲁杨 | Physics teaching projector |
| CN106595481A (en) * | 2016-12-14 | 2017-04-26 | 海信集团有限公司 | Light spot measurement method and device for laser projection system |
| CN106595481B (en) * | 2016-12-14 | 2019-05-07 | 海信集团有限公司 | The facula measurement method and device of laser projection system |
| CN108153092A (en) * | 2018-01-03 | 2018-06-12 | 京东方科技集团股份有限公司 | Reflection type optical modulation device, projecting apparatus and AR/VR displays |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7959296B2 (en) | Combining P and S rays for bright stereoscopic projection | |
| JP4231788B2 (en) | Stereo projection system | |
| US8077196B2 (en) | Stereo projection optical system | |
| EP3410206B1 (en) | Stereoscopic light recycling device | |
| KR20120050982A (en) | Stereoscopic projection system employing spatial multiplexing at an intermediate image plane | |
| CN201984280U (en) | Projecting apparatus | |
| US20090051878A1 (en) | Stereo projection optical system | |
| US20080304013A1 (en) | Projection Type Stereoscopic Display Apparatus | |
| CN102162982B (en) | Projector and optical path control method thereof | |
| US20090168174A1 (en) | Structure of Stereo Optical Engine for Projection | |
| TW200916830A (en) | Optical system for stereo projection | |
| US9151958B2 (en) | Display system using a pair of polarized sources with a 3-D display mode and two 2-D display modes | |
| US8888292B2 (en) | Projection apparatus for providing multiple viewing angle images | |
| JP2012173401A (en) | Transmitted light selection device, and stereoscopic image display device and method | |
| JP2004226767A (en) | Optical unit, display system using the same, and video light output method | |
| CN210465965U (en) | Two-piece type LCD projector based on PBS light splitting and combining | |
| Bogaert et al. | Design of a compact projection display for the visualization of 3‐D images using polarization sensitive eyeglasses | |
| TWI476447B (en) | Stereoscopic projection display apparatus | |
| CN102621703A (en) | High-efficiency polarized stereo display method | |
| JP3149346U (en) | Projection system for large venues | |
| Bogaert et al. | LED based full color stereoscopic projection system | |
| CN116540414A (en) | 3D-AR glasses | |
| RU138095U1 (en) | POLARIZATION TRANSFORMATION SYSTEM FOR STEREOSCOPIC PROJECTION | |
| Bogaert et al. | Demonstration of a polarization-based full-color stereoscopic projection display using liquid crystal on silicon panels and light emitting diodes | |
| Su et al. | A new type of stereoscopic 3D mini-projector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130227 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |