CN104423126A - Free space dynamic diffraction type image projecting device - Google Patents
Free space dynamic diffraction type image projecting device Download PDFInfo
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- CN104423126A CN104423126A CN201310404995.3A CN201310404995A CN104423126A CN 104423126 A CN104423126 A CN 104423126A CN 201310404995 A CN201310404995 A CN 201310404995A CN 104423126 A CN104423126 A CN 104423126A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
Abstract
The invention discloses a free space dynamic diffraction type image projecting device. The free dynamic diffraction type image projecting device comprises a laser light source assembly, a dynamic diffraction assembly, a control assembly and a signal output assembly, wherein the control assembly is used for controlling the laser light source assembly to emit a colored light beam according to a pattern signal output by the output assembly, and controlling the dynamic diffraction assembly to make real-time signal modulation within a special time to produce different dynamic diffraction grating distributions, so that the colored light beam is corresponding to a plurality of pixels defined by the pattern signal on the special space while passing through the dynamic diffraction assembly; the control assembly is used for controlling the dynamic diffraction assembly to quickly switch to playing each pixel, so that each pixel is scanned and projected on a corresponding position in the special space to form a two-dimensional image.
Description
Technical field
The invention relates to a kind of image projection device, especially a kind of dynamic diffraction mode image projection device of free space being applicable to low power consuming.
Background technology
Laser have high strength, narrow bandwidth, light beam concentrate etc. superior character, high brightness, high color saturation, high-resolution image projecting can be provided, be the optimal selection of Imaing projector light source in fact, therefore then become a kind of display technique trend using laser as the Imaing projector of light source.And the key component of the micro-projection arrangement of laser is on the market a micro scanning mirror, be the MEMS (micro electro mechanical system) (Micro electromechanical Systems, MEMS) of a high precision, processing procedure difficulty, expensive.And, current micro scanning mirror follows Li Shayu formula to scan (Lissajous Scan) or list type scans (RasterScan) and scans full projected picture, but as some geometric figures, as: circle and rectangle etc., only need a part of regional imaging in projected area, but due to common mechanical decline scanning mirror design and cannot scanning position be selected, then can cause scanning mirror multiple scanning need not the regional transmission part of imaging, and cause unnecessary usefulness loss.
In addition, about at construction field on the ground, laser leveler is the instrument that building operation place measurement horizontal line the most often uses, the graticule of level or vertical wire can be penetrated, for making building lot, floor, wall or irrigation canals and ditches, not even with the measurement horizontal line in the building operation places such as metope, drop or perpendicular line etc., use traditional tape measure, graticule job procedure loaded down with trivial details and the problem such as accuracy is poor to solve.Referring to Fig. 1, is the schematic diagram of a known laser leveler.As shown in Figure 1, a laser leveler 1 has a plurality of laser projection head 10, projects a light beam graticule 11 on a wall 12 by a plurality of laser projection head 10.Laser leveler 1 can solve and use traditional tape measure, graticule job procedure loaded down with trivial details and the problem such as accuracy is poor.
But similar laser level meter 1 only can use as the graticule of point or lines.The measurement of building operation place is non-in fact only terminates in the one-dimensional measurements such as horizontal line, drop or perpendicular line, demarcates, as above architectural establishments of two dimension such as square type, circle, arcs as difference measures.The pattern that known laser leveler also cannot realize more than one dimension is formed.
Summary of the invention
The object of the present invention is to provide the dynamic diffraction mode image projection device of a kind of free space, make laser beam when by dynamic diffractive element of the present invention, control directly to produce two dimension dynamically diffraction geometric figure, to replace the known technology producing two-dimentional dynamic image through the scanning projection of micro scanning mirror, need not multiple scanning need not the regional transmission part of imaging, and cause unnecessary usefulness loss.
For achieving the above object, the present invention one implements aspect provides a kind of free space dynamic diffraction mode image projection device, and it comprises: a laser light source module, provides a color beam, and color beam has a light intensity; One dynamic diffractive element, corresponding to laser light source module, to receive color beam; One Control Component, electric coupling laser light source module and dynamically diffractive element, with the light intensity of dynamic modulation color beam, wherein, Control Component controls signal changing when dynamic diffractive element is put into effect to produce the distribution of dynamic diffraction grating, makes color beam by producing the picture element on corresponding on a particular space a position during dynamic diffractive element; And a signal output precision, electrical connection Control Component, to export a pattern signal to Control Component, pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image; Wherein, Control Component is braked signal changing when state diffractive element is put into effect according to pattern signal in a specific period internal control and is produced the distribution of Different Dynamic diffraction grating, make color beam by corresponding to a plurality of picture elements that particular space is defined by pattern signal during dynamic diffractive element, and Control Component carries out switching fast playing out each picture element to dynamic diffractive element, to make the position scanning projection of each picture element correspondence on particular space to form two-dimensional geometry image.
According to the present invention, another implements aspect, and the invention provides the dynamic diffraction mode image projection device of a kind of free space, it comprises: one first laser light source module, provides one first color beam, and the first color beam has one first light intensity, one second laser light source module, provides one second color beam, and the second color beam has one second light intensity, one the 3rd laser light source module, provides one the 3rd color beam, and the 3rd color beam has one the 3rd light intensity, one dynamic diffractive element, corresponding to laser light source module, to receive color beam, and one first dynamic diffractive element, corresponding to the first laser light source module, to receive the first color beam, one second dynamic diffractive element, corresponding to the second laser light source module, to receive the second color beam, one the 3rd dynamic diffractive element, corresponding to the 3rd laser light source module, to receive the 3rd color beam, one Control Component, electric coupling first, second and third laser light source module and first, second and third dynamic diffractive element, with first, second and third light intensity of dynamic modulation first, second and third color beam of difference, wherein, Control Component controls signal changing when first, second and third dynamic diffractive element is put into effect respectively to produce the distribution of dynamic diffraction grating, makes the picture element of first, second and third color beam on the position corresponding on a particular space respectively by generation during first, second and third dynamic diffractive element, one even optical assembly, make first, second and third color beam respectively after by first, second and third dynamic diffractive element contraposition be coupled to corresponding particular spatial location, and a signal output precision, electrical connection Control Component, to export a pattern signal to Control Component, pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image, wherein, Control Component controls first according to pattern signal in a specific period, when second and third dynamic diffractive element is put into effect, signal changing is to produce the distribution of Different Dynamic diffraction grating, make first, second and third color beam is respectively by first, corresponding to a plurality of picture elements that particular space is defined by pattern signal during second and third dynamic diffractive element, and Control Component is to first, second and third dynamic diffractive element carries out switching fast playing out each picture element, to make the position scanning projection of each picture element correspondence on particular space to form two-dimensional geometry image.
One implement aspect again according to the present invention, the invention provides the dynamic diffraction mode image projection device of a kind of free space, it comprises: one first laser light source module, provides one first color beam, and the first color beam has one first light intensity; One second laser light source module, provides one second color beam, and the second color beam has one second light intensity; One the 3rd laser light source module, provides one the 3rd color beam, and the 3rd color beam has one the 3rd light intensity; One even optical assembly, receives first, second and third color beam, is a collimated mixed light beams to make first, second and third color beam coupling; One dynamic diffractive element, receives collimated mixed light beams; One Control Component, electric coupling first, second and third laser light source module and dynamically diffractive element, with first, second and third light intensity of dynamic modulation first, second and third color beam of difference, wherein, Control Component controls signal changing when dynamic diffractive element is put into effect to produce the distribution of dynamic diffraction grating, makes collimated mixed light beams by producing the picture element on corresponding on a particular space a position during dynamic diffractive element; One signal output precision, electrical connection Control Component, to export a pattern signal to Control Component, pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image; Wherein, Control Component is braked signal changing when state diffractive element is put into effect according to pattern signal in a specific period internal control and is produced the distribution of Different Dynamic diffraction grating, make collimated mixed light beams by corresponding to a plurality of picture elements that particular space is defined by pattern signal during dynamic diffractive element, and Control Component carries out switching fast playing out each picture element to dynamic diffractive element, to make the position scanning projection of each picture element correspondence on particular space to form two-dimensional geometry image.
According to the another enforcement aspect of the present invention, the invention provides the dynamic diffraction mode image projection device of a kind of free space, it comprises: a light source module, provides a collimated light beam; One hologram group, has plural hologram, defines a plurality of picture element respectively with a corresponding two-dimensional geometry image, and those holograms all have the distribution of static diffraction grating, make collimated light beam produce static diffration figure after by those holograms; And a player, in order to play this hologram group fast, the static diffration figure that those holograms are produced is rendered as dynamic geometry image and forms two-dimensional geometry image.
The dynamic diffraction mode image projection device of free space that the present invention proposes, make laser beam when by dynamic diffractive element of the present invention, control directly to produce two dimension dynamically diffraction geometric figure, to replace the known technology producing two-dimentional dynamic image through the scanning projection of micro scanning mirror, need not multiple scanning need not the regional transmission part of imaging, and cause unnecessary usefulness loss.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of known laser leveler.
Fig. 2 is the schematic diagram of the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention.
Fig. 3 is the process flow diagram that the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention shows an image on screen.
Fig. 4 is the schematic diagram that the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention shows an image on screen.
Fig. 5 is the schematic diagram of the dynamic diffraction mode image projection device of free space of another preferred embodiment of the present invention.
Fig. 6 is the schematic diagram of the dynamic diffraction mode image projection device of free space of the another preferred embodiment of the present invention.
Fig. 7 is the schematic diagram of the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention.
Primary clustering symbol description in accompanying drawing
1 laser leveler, 10 laser projection heads, 11 light beam graticules, 12 walls, 21 laser light source module, 22 dynamic diffractive element, 23 Control Components, 24 signal input modules, 25 bidimensional images, 26 objects, 311 first laser light source module, 312 second laser light source module, 313 the 3rd laser light source module, 321 first dynamic diffractive element, 322 second dynamic diffractive element, 323 the 3rd dynamic diffractive element, 33 Control Components, 34 signal input modules, 35 even optical assemblies, 36 objects, 411 first laser light source module, 412 second laser light source module, 413 the 3rd laser light source module, 42 dynamic diffractive element, 43 Control Components, 44 signal input modules, 45 even optical assemblies, 46 objects, 51 light source modules, 511 laser light source module, 512 laser light source module, 513 laser light source module, 514 even optical assemblies, 52 hologram groups, 521 holograms, 53 players, 54 objects, B1 color beam, B21 first color beam, B22 second color beam, B23 the 3rd color beam, B31 first color beam, B32 second color beam, B33 the 3rd color beam, B3 mixing collimated light beam, L51 collimated light beam, PS pattern signal, PS1 pattern signal, PS2 pattern signal, S1-S4 step.
Embodiment
Please refer to Fig. 2, is the schematic diagram of the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention.As shown in Figure 2, the dynamic diffraction mode image projection device of free space comprises: dynamic diffractive element 22, Control Component 23 of a laser light source module 21, one and a signal output precision 24.
Laser light source module 21 provides a color beam B1, color beam B1 has a light intensity, in the present embodiment, color beam B1 is a collimated light beam, and color beam B1 can be a red beam, a blue light beam, a green beam or etc. homogeneous beam like this; Dynamic diffractive element 22 is corresponding to laser light source module 21, to receive color beam B1, wherein, dynamic diffractive element 22 can be a spatial light modulator (Spatial Light Modulator), or a dynamic raster (Dynamicgrating), in the present embodiment, dynamic diffractive element 22 is a spatial light modulator; Control Component 23 electric coupling laser light source module 21 and dynamically diffractive element 22, with the light intensity of dynamic modulation color beam B1, wherein, Control Component 23 is control signal changing when dynamic diffractive element is put into effect to produce the distribution of dynamic diffraction grating, in order to do making color beam B1 by producing the picture element on corresponding on a particular space a position during dynamic diffractive element 22; And signal output precision 24 is electrically connected Control Component 23, to export a pattern signal PS to Control Component 23.In the present embodiment, pattern signal PS is a two-dimensional pattern signal, two-dimensional pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image, and it can be a square type, circular, oval, trapezoidal, a polygon, a cruciform or a circular arc.
Wherein, Control Component 23 is braked signal changing when state diffractive element 22 is put into effect according to pattern signal PS in a specific period internal control and is produced the distribution of Different Dynamic diffraction grating, make color beam B1 by corresponding to a plurality of picture elements that particular space is defined by pattern signal PS during dynamic diffractive element 22, and Control Component 23 carries out switching fast playing out each picture element to dynamic diffractive element 22, to make the position scanning projection of each picture element correspondence on particular space on an object 26 to form a two-dimensional geometry image.
Therefore, with the dynamic diffraction mode image projection device of free space provided by the present invention, Control Component can according to received image signal, make laser beam when by dynamic diffractive element of the present invention, control directly to produce two dimension dynamically diffration figure, to replace the known techniques producing two-dimentional dynamic image through the scanning projection of micro scanning mirror, need not multiple scanning need not the regional transmission part of imaging, and cause unnecessary usefulness loss.
Further, the dynamic diffraction mode image projection device of free space provided by the present invention essence can be used for the measurement of building operation place, non-ly only terminate in the one-dimensional measurements such as horizontal line, drop or perpendicular line, also can be used for, different measurement as above in two dimensions such as square type, circle, arcs is demarcated.
For can more understand in the present embodiment, the operation of the dynamic diffraction mode image projection device of free space, refer to Fig. 3 and Fig. 4, be process flow diagram and schematic diagram that the dynamic diffraction mode image projection device of free space of a preferred embodiment of the present invention shows an image on screen, see also Fig. 2.As shown in Figure 3, first, in step S1, a signal output precision 24 exports pattern signal PS to Control Component 23, in step S2, Control Component 23 control a laser light source module 21 send there is a light intensity a color beam B1 by a dynamic diffractive element 22, in step S3, Control Component 23 produces the distribution of Different Dynamic diffraction grating according to pattern signal PS signal changing when a specific period T internal control braking state diffractive element 22 is put into effect, make color beam B1 by corresponding to a plurality of picture elements that particular space is defined by pattern signal PS during dynamic diffractive element 22, for example, as shown in Figure 4, a two-dimensional geometry image 25 corresponding to pattern signal PS is cruciform, in specific period T, the a plurality of picture elements defined by pattern signal PS, control signal changing when dynamic diffractive element 22 is put into effect by Control Component 23 at random to produce to produce the distribution of Different Dynamic diffraction grating, until a plurality of picture elements of composition two-dimensional geometry image 25 have produced complete all, in step S4, repeat the start of specific period T to produce two-dimensional geometry image 25.
Please refer to Fig. 5, is the schematic diagram of the dynamic diffraction mode image projection device of free space of another preferred embodiment of the present invention.As shown in Figure 5, free space dynamic diffraction mode image projection device comprises: the dynamic diffractive element of the one first dynamic diffractive element 321,1 second of laser light source module 311,1 second laser light source module 312, the 3rd laser light source module 313,1 first 322, the 3rd dynamic diffractive element 323, Control Component 33, even optical assembly 35 and a signal output precision 34.
First laser light source module 311, second laser light source module 312 and the 3rd laser light source module 313 are be configured such that its light source exports mutually in vertical position, first LASER Light Source 311 provides one first color beam B21, and the first color beam B21 has one first light intensity; Second laser light source module 312 provides one second color beam B22, and the second color beam B22 has one second light intensity; 3rd laser light source module 313 provides one the 3rd color beam B23, and the 3rd color beam B23 has one the 3rd light intensity.In the present embodiment, the first color beam B21 is preferably red beam, and the second color beam B22 is preferably green beam, and the 3rd color beam B23 is preferably blue light beam.
First dynamic diffractive element 321 is the light source outgoing position place being arranged at the first laser light source module 311, receives the first color beam B21 to correspond to the first laser light source module 311; Second dynamic diffractive element 322 is arranged at the light source outgoing position place of the second laser light source module 312, receives the second color beam B22 to correspond to the second laser light source module 312; Aforementioned 3rd dynamic diffractive element 323 is arranged at the light source outgoing position place of the 3rd laser light source module 313, receives the 3rd color beam B23 to correspond to the 3rd laser light source module 313.In addition, first, second and third dynamic diffractive element 321,322,323 can be spatial light modulator (Spatial Light Modulator), or dynamic raster (Dynamic grating).In the present embodiment, first, second and third dynamic diffractive element 321,322,323 is dynamic raster.
Control Component 33 electric coupling first, second and third laser light source module 311, 312, 313 and first, second and third dynamic diffractive element 321, 322, 323, with the dynamic modulation first of difference, second and third color beam B21, B22, first of B23, second and third light intensity, wherein, Control Component 33 is to control first respectively, second and third dynamic diffractive element 321, 322, 323 signal changings when putting into effect produce the distribution of dynamic diffraction grating, make first, second and third color beam B21, B22, B23 is respectively by first, second and third dynamic diffractive element 321, 322, the picture element on the position corresponded on a particular space is produced when 323.
Even optical assembly 35 arrange the first dynamic diffractive element 322 of dynamic diffractive element 321, second and the 3rd dynamic diffractive element 323 around position, first, second and third color beam B21, B22, B23 is made to be coupled to corresponding particular spatial location by contraposition after first, second and third dynamic diffractive element 321,322,323 respectively, in the present embodiment, even optical assembly 35 is preferably X prism.Signal output precision 34 is electrically connected Control Component 33, to export a pattern signal PS1 to Control Component 33, wherein, Control Component 33 controls first according to pattern signal PS1 in a specific period, second and third dynamic diffractive element 321, 322, 323 signal changings when putting into effect are to produce the distribution of Different Dynamic diffraction grating, make first, second and third color beam B21, B22, B23 is respectively by first, corresponding to a plurality of picture elements that particular space is defined by pattern signal PS1 during second and third dynamic diffractive element, and Control Component 33 is to first, second and third dynamic diffractive element 321, 322, 323 carry out switching fast playing out each picture element, on an object 36, a two-dimensional geometry image is formed to make each picture element position scanning projection corresponding on particular space.
Please refer to Fig. 6, is the schematic diagram of the present invention's dynamic diffraction mode image projection device of free space of a preferred embodiment again.As shown in Figure 6, free space dynamic diffraction mode image projection device comprises: dynamic diffractive element 42, Control Component 43, of one first laser light source module 411,1 second laser light source module 412, the 3rd laser light source module 413, even optical assembly 45 and a signal output precision 44.The present embodiment and previous embodiment different are in single laser light source module 21 being extended for three red, blue, green laser light source module 411,412,413, in order to do to be combined into required color beam.
First laser light source module 411, second laser light source module 412 and the 3rd laser light source module 413 are configured such that its light source exports mutually in parallel position, first LASER Light Source 411 provides one first color beam B31, and the first color beam B31 has one first light intensity; Second laser light source module 412 provides one second color beam B32, and the second color beam B32 has one second light intensity; 3rd laser light source module 413 provides one the 3rd color beam B33, and the 3rd color beam B33 has one the 3rd light intensity.In the present embodiment, the first color beam B31 is preferably red beam, and the second color beam B32 is preferably green beam, and the 3rd color beam B33 is preferably blue light beam.
Even optical assembly 45 is arranged at the light source outgoing position place of the first laser light source module 411, second laser light source module 412 and the 3rd laser light source module 413, to receive first, second and third color beam B31, B32, B33, and make first, second and third color beam B31, B32, B33 coupling is a collimated mixed light beams B3, and collimated mixed light beams B3 receive by dynamic diffractive element 42.In addition, dynamic diffractive element 42 is preferably spatial light modulator, or dynamic raster, and in the present embodiment, dynamic diffractive element 42 is spatial light modulator.
Control Component 43 electric coupling first, second and third laser light source module 411,412,413 and dynamically diffractive element 42, with first, second and third light intensity of the dynamic modulation first, second and third color beam B31 of difference, B32, B33, wherein, Control Component 43 produces the distribution of dynamic diffraction grating to control signal changing when dynamic diffractive element 42 is put into effect, and makes collimated mixed light beams B3 by producing the picture element on corresponding on a particular space a position during dynamic diffractive element 43.
Signal output precision 44 is electrically connected Control Component 43, to export a pattern signal PS2 to Control Component 43; Wherein, Control Component 43 is braked signal changing when state diffractive element 42 is put into effect according to pattern signal PS2 in a specific period internal control and is produced the distribution of Different Dynamic diffraction grating, make collimated mixed light beams B3 by corresponding to a plurality of picture elements that particular space is defined by pattern signal PS3 during dynamic diffractive element 42, and Control Component 43 carries out switching fast playing out each picture element to dynamic diffractive element 42, to make the position scanning projection of each picture element correspondence on particular space to form a two-dimensional geometry image in an object 46.
Please refer to Fig. 7, is the schematic diagram of the dynamic diffraction mode image projection device of free space of another preferred embodiment of the present invention.As shown in Figure 7, the dynamic diffraction mode image projection device of free space comprises: light source module 51, hologram group 52 and a player 53.
Said light source module 51 provides a collimated light beam L51.In the present embodiment, light source module 51 can be single laser light source module or light source module 51 also comprises: three laser light source module 511,512,513, provides red, blue and green beam respectively; And an even optical assembly 514, to make redness, blueness and green beam coupling for collimated light beam L51.
The plural number that aforementioned hologram group 52 has serial connection is such as the diffractive element of hologram 521, it defines a plurality of picture element respectively with a corresponding two-dimensional geometry image, and those holograms 521 all have the distribution of static diffraction grating, collimated light beam L51 is made to produce static diffration figure by those holograms 521 are rear.
Hologram group 52 play fast by player 53, and the static diffration figure that those holograms 321 are produced is rendered as dynamic geometry image on an object 54.
Therefore, the dynamic diffraction mode image projection device of free space provided by the present invention, can make laser beam when by dynamic diffractive element of the present invention, control directly to produce two dimension dynamically diffraction geometric figure, to replace the known technology producing two-dimentional dynamic image through the scanning projection of micro scanning mirror, need not multiple scanning need not the regional transmission part of imaging, and cause unnecessary usefulness loss.
Further, the dynamic diffraction mode image projection device of free space provided by the present invention essence can be used for the measurement of building operation place, non-ly only terminate in the one-dimensional measurements such as horizontal line, drop or perpendicular line, also can be used for, different measurement as above in two dimensions such as square type, circle, arcs is demarcated.
Above-described embodiment is citing for convenience of description only, and the interest field that the present invention advocates from being as the criterion described in the right of application, but not is only limitted to above-described embodiment.
Claims (18)
1. the dynamic diffraction mode image projection device of free space, it comprises:
One laser light source module, provides a color beam, and this color beam has a light intensity;
One dynamic diffractive element, corresponding to this laser light source module, to receive this color beam;
One Control Component, this laser light source module of electric coupling and this dynamic diffractive element, with this light intensity of dynamic this color beam of modulation, wherein, this Control Component controls signal changing when this dynamic diffractive element is put into effect to produce the distribution of dynamic diffraction grating, makes this color beam by producing the picture element on corresponding on a particular space a position during this dynamic diffractive element; And
One signal output precision, is electrically connected this Control Component, and to export a pattern signal to this Control Component, this pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image;
Wherein, this Control Component controls signal changing when this dynamic diffractive element is put into effect and produces the distribution of Different Dynamic diffraction grating in a specific period according to this pattern signal, make this color beam by corresponding to a plurality of picture elements that this particular space is defined by this pattern signal during this dynamic diffractive element, and this Control Component carries out switching fast playing out each picture element to this dynamic diffractive element, to make the position scanning projection of each picture element correspondence on this particular space to form this two-dimensional geometry image.
2. the dynamic diffraction mode image projection device of free space as claimed in claim 1, wherein, this dynamic diffractive element is a spatial light modulator.
3. the dynamic diffraction mode image projection device of free space as claimed in claim 1, wherein, this dynamic diffractive element is a dynamic raster.
4. the dynamic diffraction mode image projection device of free space as claimed in claim 1, wherein, this pattern signal is a two-dimensional pattern signal, and this two-dimensional geometry image corresponding to this two-dimensional pattern signal is a square type, circular, oval, trapezoidal, a polygon, a cruciform or a circular arc.
5. the dynamic diffraction mode image projection device of free space, it comprises:
One first laser light source module, provides one first color beam, and this first color beam has one first light intensity;
One second laser light source module, provides one second color beam, and this second color beam has one second light intensity;
One the 3rd laser light source module, provides one the 3rd color beam, and the 3rd color beam has one the 3rd light intensity;
One dynamic diffractive element, corresponding to this laser light source module, to receive this color beam; And
One first dynamic diffractive element, corresponding to this first laser light source module, to receive this first color beam;
One second dynamic diffractive element, corresponding to this second laser light source module, to receive this second color beam;
One the 3rd dynamic diffractive element, corresponding to the 3rd laser light source module, to receive the 3rd color beam;
One Control Component, electric coupling this first, second and third laser light source module and this first, second and third dynamic diffractive element, with respectively dynamic modulation this first, second and third color beam this first, second and third light intensity, wherein, this Control Component be control respectively this first, when second and third dynamic diffractive element is put into effect, signal changing produces the distribution of dynamic diffraction grating, make this first, second and third color beam respectively by this first, the picture element on the position corresponded on a particular space is produced during second and third dynamic diffractive element,
One even optical assembly, make this first, second and third color beam respectively after by this first, second and third dynamic diffractive element contraposition be coupled to corresponding particular spatial location; And
One signal output precision, is electrically connected this Control Component, and to export a pattern signal to this Control Component, this pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image;
Wherein, this Control Component control in a specific period according to this pattern signal this first, when second and third dynamic diffractive element is put into effect, signal changing is to produce the distribution of Different Dynamic diffraction grating, make this first, second and third color beam respectively by this first, corresponding to a plurality of picture elements that this particular space is defined by this pattern signal during second and third dynamic diffractive element, and this Control Component to this first, second and third dynamic diffractive element carries out switching fast playing out each picture element, to make the position scanning projection of each picture element correspondence on this particular space to form this two-dimensional geometry image.
6. the dynamic diffraction mode image projection device of free space as claimed in claim 5, wherein, this first, second and third dynamic diffractive element is a spatial light modulator.
7. the dynamic diffraction mode image projection device of free space as claimed in claim 5, wherein, this first, second and third dynamic diffractive element is a dynamic raster.
8. the dynamic diffraction mode image projection device of free space as claimed in claim 5, wherein, this pattern signal is a two-dimensional pattern signal, and this bidimensional image corresponding to this two-dimensional pattern signal is a square type, circular, oval, trapezoidal, a polygon, a cruciform or a circular arc.
9. the dynamic diffraction mode image projection device of free space as claimed in claim 5, wherein, this first color beam is red beam, and this second color beam is green beam, and the 3rd color beam is blue light beam.
10. the dynamic diffraction mode image projection device of free space as claimed in claim 1, wherein, this even optical assembly is an X prism.
11. 1 kinds of dynamic diffraction mode image projection devices of free space, it comprises:
One first laser light source module, provides one first color beam, and this first color beam has one first light intensity;
One second laser light source module, provides one second color beam, and this second color beam has one second light intensity;
One the 3rd laser light source module, provides one the 3rd color beam, and the 3rd color beam has one the 3rd light intensity;
One even optical assembly, receives this first, second and third color beam, to make this first, second and third color beam coupling be a collimated mixed light beams;
One dynamic diffractive element, receives this collimated mixed light beams;
One Control Component, this first, second and third laser light source module of electric coupling and this dynamic diffractive element, with this first, second and third light intensity of this first, second and third color beam of the dynamic modulation of difference, wherein, this Control Component controls signal changing when this dynamic diffractive element is put into effect to produce the distribution of dynamic diffraction grating, makes this collimated mixed light beams by producing the picture element on corresponding on a particular space a position during this dynamic diffractive element;
One signal output precision, is electrically connected this Control Component, and to export a pattern signal to this Control Component, this pattern signal defines a plurality of picture element with a corresponding two-dimensional geometry image;
Wherein, this Control Component controls signal changing when this dynamic diffractive element is put into effect and produces the distribution of Different Dynamic diffraction grating in a specific period according to this pattern signal, make this collimated mixed light beams by corresponding to a plurality of picture elements that this particular space is defined by this pattern signal during this dynamic diffractive element, and this Control Component carries out switching fast playing out each picture element to this dynamic diffractive element, to make the position scanning projection of each picture element correspondence on this particular space to form this bidimensional image.
The dynamic diffraction mode image projection device of 12. free space as claimed in claim 11, wherein, this dynamic diffractive element is a spatial light modulator.
13. free space dynamic vector diffraction projection arrangements as claimed in claim 11, wherein, this dynamic diffractive element is a dynamic raster.
The dynamic diffraction mode image projection device of 14. free space as claimed in claim 11, wherein, this pattern signal is a two-dimensional pattern signal, and this two-dimensional geometry image corresponding to this two-dimensional pattern signal is a square type, circular, oval, trapezoidal, a polygon, a cruciform or a circular arc.
The dynamic diffraction mode image projection device of 15. free space as claimed in claim 11, wherein, this first color beam is red beam, and this second color beam is green beam, and the 3rd color beam is blue light beam.
The dynamic diffraction mode image projection device of 16. free space as claimed in claim 11, wherein, this even optical assembly is an X prism.
17. 1 kinds of dynamic diffraction mode image projection devices of free space, it comprises:
One light source module, provides a collimated light beam;
One hologram group, has plural hologram, defines a plurality of picture element respectively with a corresponding two-dimensional geometry image, and those holograms all have the distribution of static diffraction grating, make this collimated light beam produce static diffration figure after by those holograms; And
One player, in order to play this hologram group fast, the static diffration figure that those holograms are produced is rendered as dynamic image and forms this two-dimensional geometry image.
18. dynamically diffraction mode Imaing projectors as claimed in claim 17, wherein, this light source module comprises:
Three laser light source module, provide red, blue and green beam respectively; And
One even optical assembly, to make this redness, blueness and green beam coupling for this collimated light beam.
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| CN201310404995.3A CN104423126A (en) | 2013-09-09 | 2013-09-09 | Free space dynamic diffraction type image projecting device |
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| CN109696793A (en) * | 2017-10-20 | 2019-04-30 | 奇景光电股份有限公司 | Control the method and electronic device of projector |
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Application publication date: 20150318 |