CN203688986U - 3D imaging equipment using polarization spectroscope to reduce light loss - Google Patents
3D imaging equipment using polarization spectroscope to reduce light loss Download PDFInfo
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- CN203688986U CN203688986U CN201320740418.7U CN201320740418U CN203688986U CN 203688986 U CN203688986 U CN 203688986U CN 201320740418 U CN201320740418 U CN 201320740418U CN 203688986 U CN203688986 U CN 203688986U
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- polarization spectroscope
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Abstract
The utility model relates to 3D imaging equipment; the 3D imaging equipment using a polarization spectroscope to reduce light loss comprises a projector provided with a projection lens; the polarization spectroscope is arranged in front of the projection lens, and can divide projection light into transmission light and reflection light; a polarized light adjuster is arranged in front of the polarization spectroscope; a lens is arranged in front of the polarized light adjuster; the transmission light passes the polarized light adjuster and the lens in sequence, and transmits outside the lens; a reflection mirror is arranged above the polarization spectroscope; a LCD is arranged in front of the reflection mirror; the reflection light passes through the reflection mirror and the LCD in sequence, and transmits outside the LCD; a reflection mirror surface respectively forms an angle of 45 degrees with a lens surface and an LCD surface, and the lens surface is parallel with the LCD surface. The polarization spectroscope is added, so total energy efficiency of the system can be greatly improved, so a user cannot have a problem of overly dark 3D images.
Description
Technical field
The utility model relates to optical field, is specifically related to 3D imaging device.
Background technology
At present, in correlation technique, it is expensive that the 3D projector of DLP technology compares common 2D projector, the DLP shutter glasses that simultaneously also will arrange in pairs or groups special, and glasses internal battery, structure is loaded down with trivial details, compares polaroid glasses cost higher.
Meanwhile, in correlation technique, the optical efficiency of the common 3D imaging device that utilizes polarization spectroscope reduction light loss is too low, and light energy losses is serious.
Utility model content
The purpose of this utility model is, a kind of 3D imaging device that utilizes polarization spectroscope to reduce light loss is provided, and solves above technical matters.
The technical matters that the utility model solves can realize by the following technical solutions:
Utilize polarization spectroscope to reduce the 3D imaging device of light loss, comprise a projector, a projection camera lens is housed on described projector, described projection is provided with a polarization spectroscope with camera lens front, and projected light is divided into a transmitted light, a reflected light by polarization spectroscope;
The front of described polarization spectroscope is provided with a polarized light adjuster, and the front of described polarized light adjuster is provided with lens, and described transmitted light passes through described polarized light adjuster, described lens successively, transmits from described lens;
The top of described polarization spectroscope is provided with a catoptron, and the front of described catoptron is provided with a liquid crystal board, and described reflected light passes through described catoptron, described liquid crystal board successively, is transmitted by described liquid crystal board;
The plane at the plane at the plane at described catoptron place and described lens place, described liquid crystal board place is all 45 degree, the plane parallel at the plane at described lens place and described liquid crystal board place.
The utility model is as utilizing polarization spectroscope to reduce the 3D imaging device of light loss, simple in structure, production cost is low, the more important thing is that the utility model set up polarization spectroscope, the total energy effect of system is significantly improved, make user there will be no worry that 3D rendering is excessively dark.
Described polarized light adjuster comprises a rotating disc, polaroid switching mechanism, a polarizer group, and polarizer group is provided with at least two circular polarizing disks, and is at least a slice Left-hand circular polarization sheet and a slice right-hand circular polarization sheet;
Each circular polarizing disk in described polarizer group is fan-shaped, and fan-shaped radian is identical, and described rotating disc is the transparent plate of a circle, and each circular polarizing disk is equidistantly arranged in described transparent plate;
The circle centre position of described rotating disc is equipped with a rotating shaft, and described polaroid switching mechanism comprises an action component, a driving mechanism, and described driving mechanism connects described action component, and described action component connects described rotating shaft.
Described driving mechanism is motor.The rotating shaft of described motor and the rotating shaft of described rotating disc interlock, also can directly adopt the rotating shaft of motor as the rotating shaft of described rotating disc.
The 3D imaging device that utilizes polarization spectroscope to reduce light loss also comprises a microprocessor system, described microprocessor system is provided with a frame of video input information interface, described frame of video input information interface connects described projector, described microprocessor system also connects a motor driving module, and described motor driving module connects described motor;
Described microprocessor system also connects a lcd drive chip, and described liquid crystal board is provided with liquid crystal display drive circuit, and described lcd drive chip connects described liquid crystal display drive circuit.Obtaining after frame of video information, microprocessor system is given described CD-ROM drive motor and described liquid crystal display drive circuit according to the frame of video information output control signal of described acquisition, and then drives the liquid crystal display drive circuit on described rotating disc and described liquid crystal board.
Described rotating disc and optical encoding disk interlock, the signal output part of described optical encoding disk connects the signal input part of described microprocessor system, and the optical encoding of optical encoding disk is arranged on the periphery of described rotating disc.It is the rotation information of described microprocessor system feedback rotating disc by optical encoding disk.With the accuracy that ensures to drive.The optical encoding of optical encoding disk is arranged on the periphery of discoid polarized light modulator.Thereby optical encoding disk and polarizer group are combined together.
As a kind of preferred version, frame per second when described projector displaying video is 144hz, and the rotating speed that described rotating disc rotates is per second 72 to turn.As another kind of preferred version, frame rate when described projector displaying video is 72hz, and the speed that described rotating disc rotates is 36 revolutions per seconds.As another kind of preferred version, frame rate when described projector displaying video is 120hz, and the speed that described rotating disc rotates is 60 revolutions per seconds.The 3D video frequency light beam of processing through rotating disc so is just divided into the left and right image beam of different polarization characteristic, be radiated at and protect after inclined to one side screen, through wearing corresponding polaroid glasses, make images of left and right eyes see respectively left and right image, process and form stereo-picture through brain.
As a kind of preferred version, described polarizer group is made up of 6 right-hand circular polarization sheets and 6 Left-hand circular polarization sheets, and 6 right-hand circular polarization sheets are positioned at right side, and 6 Left-hand circular polarization sheets are positioned at left side.Experiment shows that this is more satisfactory state.
Brief description of the drawings
Fig. 1 is a kind of one-piece construction schematic diagram of the present utility model;
Fig. 2 is the part-structure schematic diagram of rotating disc of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with further elaboration the utility model of concrete diagram.
See figures.1.and.2, utilize polarization spectroscope to reduce the 3D imaging device of light loss, comprise a projector 1, a camera lens 2 for projection is housed on projector 1, projection is provided with a polarization spectroscope 6 with camera lens 2 fronts, and projected light is divided into a transmitted light, a reflected light by polarization spectroscope 6; The front of polarization spectroscope 6 is provided with a polarized light adjuster, and the front of polarized light adjuster is provided with lens 3, and transmitted light passes through polarized light adjuster, lens 3 successively, transmits from lens 3; The top of polarization spectroscope 6 is provided with a catoptron 7, and the front of catoptron 7 is provided with a liquid crystal board, and reflected light passes through catoptron 7, liquid crystal board 5 successively, is transmitted by liquid crystal board 5; The light direction of transmitted light is consistent with catoptrical light direction.
Polarized light adjuster comprises a rotating disc 8, polaroid switching mechanism, a polarizer group, and polarizer group is provided with at least two circular polarizing disks, and is at least a slice Left-hand circular polarization sheet and a slice right-hand circular polarization sheet; Each circular polarizing disk in polarizer group is fan-shaped, and fan-shaped radian is identical, and rotating disc 8 is the transparent plate of a circle, and each circular polarizing disk is equidistantly arranged in transparent plate; The circle centre position of rotating disc 8 is equipped with a rotating shaft 4, and polaroid switching mechanism comprises an action component, a driving mechanism, driving mechanism connecting moves parts, action component connection rotating shaft 4.Driving mechanism can be motor.The rotating shaft 4 of motor links with the rotating shaft 4 of rotating disc 8, also can directly adopt the rotating shaft 4 of motor as the rotating shaft 4 of rotating disc 8.
The 3D imaging device that utilizes polarization spectroscope to reduce light loss also comprises a microprocessor system, microprocessor system is provided with a frame of video input information interface, frame of video input information interface connects projector 1, microprocessor system also connects a motor driving module, motor driving module connecting motor; Microprocessor system also connects a lcd drive chip, and liquid crystal board 5 is provided with liquid crystal display drive circuit, and lcd drive chip connects liquid crystal display drive circuit.Obtaining after frame of video information, microprocessor system is exported control signal to CD-ROM drive motor and liquid crystal display drive circuit according to the frame of video information obtaining, and then drives the liquid crystal display drive circuit on rotating disc 8 and liquid crystal board 5.
Rotating disc 8 and optical encoding disk interlock, the signal output part of optical encoding disk connects the signal input part of microprocessor system.It is the rotation information of microprocessor system feedback rotating disc 8 by optical encoding disk.With the accuracy that ensures to drive.The optical encoding of optical encoding disk is arranged on the periphery of discoid polarized light modulator.Thereby optical encoding disk and polarizer group are combined together.
The speed that rotating disc 8 rotates, the half of the frame rate should be projector 1 displaying video time.As a kind of preferred version, frame per second when projector 1 displaying video is 144hz, and the rotating speed that rotating disc 8 rotates is per second 72 to turn.As another kind of preferred version, frame rate when projector 1 displaying video is 72hz, and the speed that rotating disc 8 rotates is 36 revolutions per seconds.As another kind of preferred version, frame rate when projector 1 displaying video is 120hz, and the speed that rotating disc 8 rotates is 60 revolutions per seconds.The 3D video frequency light beam of processing through rotating disc 8 so is just divided into the left and right image beam of different polarization characteristic, be radiated at and protect after inclined to one side screen, through wearing corresponding polaroid glasses, make images of left and right eyes see respectively left and right image, process and form stereo-picture through brain.
As a kind of preferred version, polarizer group is made up of 6 right-hand circular polarization sheets and 6 Left-hand circular polarization sheets, and 6 right-hand circular polarization sheets are positioned at right side, and 6 Left-hand circular polarization sheets are positioned at left side.Experiment shows that this is more satisfactory state.Referring to Fig. 2, Fig. 2 is rotating disc 8 structural drawing.In Fig. 2,201 and 202 is all to glue together by linear polarizer and quarter-wave plate the circular polarizing disk forming, by but both sides relation be that direction is vertical, as " F " in figure marks, suppose a left side for 201 correspondences, the right side of 202 correspondences.As figure, rotating disc 8 is divided into 12 deciles, on dash area (being little subregion a1-6), posts circular polarizing disk, and its direction is 201, and remaining 6 little subregions (being little subregion b7-12) post the circular polarizing disk of direction as shown in 202.
Specific implementation process: 2D projector is play the 3D video of left and right form, makes left-and right-eye images replace playing back at high speed.Be divided into 2 road light through polarization spectroscope 6, a road light transmission, a road light reflection, the two-way light of transmission and reflection has respectively different linear polarization characteristics, and direction is mutually vertical, and total energy loss is few.Be transmitted as p light, be reflected into s light.Transmitted light continues to see through rotating disc 8, rotates the circularly polarized light that emergent light is become replace continuously by motor driving rotating disc 8.And by the control of motor, make left-and right-eye images just there is different circular polarization characteristics.
Reflected light through a catoptron 7 reflection adjustment light paths, makes the basic keeping parallelism of primary optical axis and transmitted light again.Reflected light continues to see through liquid crystal flat-panel, by the control to liquid crystal flat-panel, and the circularly polarized light that emergent light is become replace continuously.And by reasonably controlling, make left-and right-eye images not only just there is different circular polarization characteristics, and consistent with the circular polarization property preservation that sees through rotating disc 8.
Consider that reflection and the transmission two-way light light path of passing by are different, so adding one group of lens 3 seeing through after rotating disc 8, make the consistent and coincidence of final picture size on screen.Like this, wear the spectators of circularly polarized light glasses, left eye just only can receive left-eye image, and right eye only can receive eye image, processes and forms stereo-picture through brain.In sum, by means of technical scheme of the present invention, not losing under the prerequisite of 3D effect, make full use of luminous energy, entire system luminous energy effect is significantly improved.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. utilize polarization spectroscope to reduce the 3D imaging device of light loss, comprise a projector, a projection camera lens is housed on described projector, it is characterized in that, described projection is provided with a polarization spectroscope with camera lens front, and projected light is divided into a transmitted light, a reflected light by polarization spectroscope;
The front of described polarization spectroscope is provided with a polarized light adjuster, and the front of described polarized light adjuster is provided with lens, and described transmitted light passes through described polarized light adjuster, described lens successively, transmits from described lens;
The top of described polarization spectroscope is provided with a catoptron, and the front of described catoptron is provided with a liquid crystal board, and described reflected light passes through described catoptron, described liquid crystal board successively, is transmitted by described liquid crystal board;
The plane at the plane at the plane at described catoptron place and described lens place, described liquid crystal board place is all 45 degree, the plane parallel at the plane at described lens place and described liquid crystal board place.
2. the 3D imaging device that utilizes polarization spectroscope to reduce light loss according to claim 1, it is characterized in that: described polarized light adjuster comprises a rotating disc, polaroid switching mechanism, a polarizer group, polarizer group is provided with at least two circular polarizing disks, and is at least a slice Left-hand circular polarization sheet and a slice right-hand circular polarization sheet;
Each circular polarizing disk in described polarizer group is fan-shaped, and fan-shaped radian is identical, and described rotating disc is the transparent plate of a circle, and each circular polarizing disk is equidistantly arranged in described transparent plate;
The circle centre position of described rotating disc is equipped with a rotating shaft, and described polaroid switching mechanism comprises an action component, a driving mechanism, and described driving mechanism connects described action component, and described action component connects described rotating shaft.
3. the 3D imaging device that utilizes polarization spectroscope to reduce light loss according to claim 2, is characterized in that: described driving mechanism is motor.
4. the 3D imaging device that utilizes polarization spectroscope to reduce light loss according to claim 3, it is characterized in that: also comprise a microprocessor system, described microprocessor system is provided with a frame of video input information interface, described frame of video input information interface connects described projector, described microprocessor system also connects a motor driving module, and described motor driving module connects described motor;
Described microprocessor system also connects a lcd drive chip, and described liquid crystal board is provided with liquid crystal display drive circuit, and described lcd drive chip connects described liquid crystal display drive circuit.
5. the 3D imaging device that utilizes polarization spectroscope to reduce light loss according to claim 4, it is characterized in that: described rotating disc and optical encoding disk interlock, the signal output part of described optical encoding disk connects the signal input part of described microprocessor system, and the optical encoding of optical encoding disk is arranged on the periphery of described rotating disc.
6. reduce the 3D imaging device of light loss according to the polarization spectroscope that utilizes described in claim 2,3,4 or 5, it is characterized in that: frame per second when described projector displaying video is 144hz, the rotating speed that described rotating disc rotates is per second 72 to turn.
7. reduce the 3D imaging device of light loss according to the polarization spectroscope that utilizes described in claim 2,3,4 or 5, it is characterized in that: frame rate when described projector displaying video is 72hz, the speed that described rotating disc rotates is 36 revolutions per seconds.
8. reduce the 3D imaging device of light loss according to the polarization spectroscope that utilizes described in claim 2,3,4 or 5, it is characterized in that: frame rate when described projector displaying video is 120hz, the speed that described rotating disc rotates is 60 revolutions per seconds.
9. reduce the 3D imaging device of light loss according to the polarization spectroscope that utilizes described in claim 2,3,4 or 5, it is characterized in that: described polarizer group is made up of 6 right-hand circular polarization sheets and 6 Left-hand circular polarization sheets, 6 right-hand circular polarization sheets are positioned at right side, and 6 Left-hand circular polarization sheets are positioned at left side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320740418.7U CN203688986U (en) | 2013-11-21 | 2013-11-21 | 3D imaging equipment using polarization spectroscope to reduce light loss |
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| CN201320740418.7U CN203688986U (en) | 2013-11-21 | 2013-11-21 | 3D imaging equipment using polarization spectroscope to reduce light loss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910734A (en) * | 2017-12-06 | 2018-04-13 | 中国工程物理研究院激光聚变研究中心 | A kind of microwave pulse emitter of Laser Driven |
-
2013
- 2013-11-21 CN CN201320740418.7U patent/CN203688986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910734A (en) * | 2017-12-06 | 2018-04-13 | 中国工程物理研究院激光聚变研究中心 | A kind of microwave pulse emitter of Laser Driven |
| CN107910734B (en) * | 2017-12-06 | 2023-12-08 | 中国工程物理研究院激光聚变研究中心 | Laser-driven microwave pulse transmitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: 3D imaging equipment using polarization spectroscope to reduce light loss Effective date of registration: 20141217 Granted publication date: 20140702 Pledgee: Qin Duan Pledgor: SHANGHAI DW-VISON3D TECHNOLOGY CO., LTD. Registration number: 2014310000086 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191121 |