Single-lens polarized light 3D projector
Technical field
The utility model relates to the optical instrumentation field, especially a kind of single-lens polarized light 3D projector.
Background technology
Along with development of science and technology, shadow casting technique is constantly progressive, and projector has been widely used in fields such as business office, teaching, home theater, and traditional playback equipments such as replacing MP5, TV is fully arranged.
Dual-projection formula projector in the past directly outputs to play content in two projectors synchronously by the video card of double end output, before the projector of projection left eye, add the polarization mirror, and then also add the polarization mirror before the projector of projection eye image but angle is revolved and turn 90 degrees, make the polarization direction that produces two bundle polarized lights orthogonal.The polarization direction does not change when reflexing to viewer's location again on the special-purpose projection screen and polarized light projects.When the viewers wear polarising glass was watched, every glasses can only be seen corresponding polarization image, thereby produced stereo perception in visual system.This mode must be used two projectors, and power consumption is big, cost is high, volume is big, the Installation and Debugging difficulty, and it is synchronous to be difficult to holding signal, and the right and left eyes signal errors causes position deviation easily.
Summary of the invention
In order to overcome the deficiencies in the prior art part, the purpose of this utility model provides that a kind of volume is little, low in energy consumption, cost is low, make things convenient for Installation and Debugging, directly realizes the 3D picture, and signal Synchronization is good, the single-lens polarized light 3D projector that effect is good.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of single-lens polarized light 3D projector, comprise a control circuit device and a light engine, described control circuit device is handled from two silica-based liquid crystal panels that behind the signal in terminal signaling source data sent to light engine.
Further, described light engine comprises a light source, a polarization splitting prism, two silica-based liquid crystal panels and a projection lens.Light source is suitable for sending an illuminating bundle.Polarization splitting prism is disposed on the light path of illuminating bundle.One silica-based liquid crystal panel horizontal arrangement is in the bottom of polarization splitting prism, and another silica-based liquid crystal panel arranged perpendicular is in the right part of polarization splitting prism.Polarization splitting prism produces mutually perpendicular polarized light to two silica-based liquid crystal panel of two bundles of S polarisation and P polarisation respectively, two silica-based liquid crystal panels reflect this partial illumination light beam respectively, produce two different subpictures of polarization direction, and can be passed to polarization splitting prism from this image strip of two silica-based liquid crystal panels.Polarization splitting prism allows this image strip from two silica-based liquid crystal panels be passed to projection lens respectively, projects two different subpictures of polarization direction to screen.
The beneficial effects of the utility model are: because the projector that has adopted above-mentioned light engine, send 2D or 3D signal to control circuit by the terminal signaling source by SD card or interfaces such as VGA or HDMI, signal after control circuit will be handled is input to two silica-based liquid crystal panels of light engine, throw away to the screen place by light engine and finally to obtain the different image in two width of cloth polarization directions, be overlapped into the 3D picture.The utility model is simple in structure, reasonable in design, and volume is little, low in energy consumption, cost is low, make things convenient for Installation and Debugging, directly realizes the 3D picture, and signal Synchronization is good, and effect is good, has huge market potential.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is a principle of work synoptic diagram of the present utility model;
Each label is respectively among the figure: (1) control circuit device, (2) light engine, (3) light source, (4) polarization splitting prism, (5) (6) silica-based liquid crystal panel, (7) projection lens, (8) terminal signaling source, (9) interface.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Referring to Fig. 1, a kind of single-lens polarized light 3D of the utility model projector, comprise a control circuit device 1 and a light engine 2, described control circuit device 1 is handled from the silica-based liquid crystal panel 5 and 6 that behind the signal in terminal signaling source 7 data is sent to light engine 2.Described light engine 2 comprises a light source 3, a polarization splitting prism 4, two silica-based liquid crystal panels 5,6 and a projection lens 7.Light source 3 is suitable for sending an illuminating bundle.Polarization splitting prism 4 is disposed on the light path of illuminating bundle.One silica-based liquid crystal panel, 5 horizontal arrangement are in the bottom of polarization splitting prism 4, and another silica-based liquid crystal panel 6 arranged perpendicular are in the right part of polarization splitting prism 4.Polarization splitting prism 4 is suitable for allowing light beam that light source 3 produced and be passed to two silica-based liquid crystal panels 5,6 through polarization splitting prism, wherein two silica-based liquid crystal panels 5,6 are suitable for reflecting this partial illumination light beam, and this partial illumination light beam is converted to the mutually perpendicular two bundle image strips in polarization direction respectively, and can be passed to this polarization splitting prism 4 from two image strips of two silica-based liquid crystal panels 5,6 respectively.This polarization splitting prism 4 allows respectively two image strips from two silica-based liquid crystal panels 5,6 be passed to this projection lens 7 and invests screens.
Referring to Fig. 2, during the utility model work, send 2D or 3D signal to control circuit device 1 by terminal signaling source 8 by SD card or interfaces such as VGA or HDMI 8, two paths of signals after control circuit device 1 will be handled is input to two silica-based liquid crystal panels 5,6 of light engine 2 respectively, throw away by light engine 2 and finally to obtain two width of cloth images to the screen place, be overlapped into the 3D picture, can watch the image of 3D effect by polaroid glasses.
The above, it only is a kind of preferred embodiment of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of the utility model technology any trickle modification, equivalent variations and modification that top embodiment did.