CN203691522U - Digital projection module and projector - Google Patents
Digital projection module and projector Download PDFInfo
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- CN203691522U CN203691522U CN201320791898.XU CN201320791898U CN203691522U CN 203691522 U CN203691522 U CN 203691522U CN 201320791898 U CN201320791898 U CN 201320791898U CN 203691522 U CN203691522 U CN 203691522U
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Abstract
The utility model relates to the field of multimedia projecting, and in practical terms, relates a digital projection module and a projector. Wherein, the digital projection module includes multiple digital protection units which are arranged in a ring shape around one central point. The digital projection modules and projectors provided by the utility model only contain a digital protection unit compared with the digital projector in the current technology, and the digital protection unit is limited by the projecting angle of the projection lens to make the projection image more smaller, generally, only the program that the largest range is 120 degrees in horizontal and 60 degrees in pitch can be compared, which projects via the multiple digital protection units to make the digital protection units not to be affected by limitation of the projecting angle, greatly enlarging the range of the projecting images.
Description
Technical field
The utility model relates to multimedia overhead projector field, in particular to digital projection module and projecting apparatus.
Background technology
Digital projection instrument is a kind ofly image or video can be projected to the equipment on curtain.
In correlation technique, digital projection instrument comprises: light source, projecting cell, this projecting cell comprises: the collector lens that sets gradually, point colour wheel, DMD(Digital Micromirror Device, digital micromirror elements), projection lens and control board.Wherein, the light being sent by light source is after collector lens homogenizing, then it is upper to project DMD through a point colour wheel color separation, and DMD is by this light reflection to projection lens, and light forms image by projection lens projects to screen.Control board rotates for the micromirror of controlling DMD, thereby regulates the projection light intensity of DMD reflection.
But the digital projection instrument in correlation technique, is subject to the projection angle restriction of projection lens, makes the scope of projection imaging less, general maximum only has level 120 to spend, the scope that pitching 60 is spent.
Utility model content
The purpose of this utility model is to provide a kind of digital projection module and projecting apparatus, to solve the above problems.
A kind of digital projection module is provided in embodiment of the present utility model, has comprised: multiple digital projections unit;
Multiple digital projections unit is arranged in the form of a ring around a central point.
Also provide a kind of digital projection instrument at embodiment of the present utility model, having comprised: data decomposition chip, shell, light source and digital projection module;
The view data of input is decomposed into multi-path light control signal by data decomposition chip; The number of optical control signal is identical with the number of multiple digital projections unit;
Each road optical control signal correspondence exports a digital projecting cell to;
Light source is arranged on central point.
At also a kind of digital projection instrument of embodiment of the present utility model, comprising: data decomposition chip, shell, light source and digital projection module;
The view data of input is decomposed into multi-path light control signal by data decomposition chip; The number of optical control signal is identical with the number of multiple digital projections unit;
Each road optical control signal correspondence exports a digital projecting cell to;
The number of light source is identical with the number of digital projection unit;
Each digital projection unit correspondence arranges a light source.
A kind of digital projection module and projecting apparatus that the utility model embodiment provides, comprise multiple digital projections unit, wherein, multiple described digital projections unit is arranged in the form of a ring around a central point, only include a digital projecting cell with digital projection instrument of the prior art, and this digital projection unit is subject to the projection angle restriction of projection lens, make the scope of projection imaging less, general maximum only has level 120 to spend, the scheme of the scope that pitching 60 is spent is compared, it carries out projection by multiple digital projections unit, thereby make digital projection unit not be subject to the restriction of the projection angle of projection lens, greatly increase the scope of projection imaging.
Accompanying drawing explanation
Fig. 1 shows the front view of the projecting apparatus projection imaging that uses two digital projecting cells;
Fig. 2 shows the horizontal cross-sectional view of the projecting apparatus projection imaging that uses two digital projecting cells;
Fig. 3 shows the front view of the projecting apparatus projection imaging that uses three digital projecting cells;
Fig. 4 shows the horizontal cross-sectional view of the projecting apparatus projection imaging that uses three or four digital projecting cells;
Fig. 5 shows the front view of the projecting apparatus projection imaging that uses four digital projecting cells;
Fig. 6 shows drop shadow spread's front view of the projecting apparatus projection imaging that uses four digital projecting cells;
Fig. 7 shows drop shadow spread's vertical view of the projecting apparatus projection imaging that uses four digital projecting cells;
Fig. 8 shows the fundamental diagram of the projecting apparatus that uses four digital projecting cells.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
The utility model embodiment provides a kind of digital projection module, comprising: multiple digital projections unit; Multiple digital projections unit is arranged in the form of a ring around a central point.
A kind of digital projection module that the utility model embodiment provides, comprise multiple digital projections unit, wherein, multiple described digital projections unit is arranged in the form of a ring around a central point, only include a digital projecting cell with digital projection instrument of the prior art, and this digital projection unit is subject to the projection angle restriction of projection lens, make the scope of projection imaging less, general maximum only has level 120 to spend, the scheme of the scope that pitching 60 is spent is compared, it carries out projection by multiple digital projections unit, thereby make digital projection unit not be subject to the restriction of the projection angle of projection lens, greatly increase the scope of projection imaging.
Concrete, digital projection unit comprises: the collector lens 4, point colour wheel 3, DMD2, projection lens 1 and the control board that set gradually; Wherein, a point colour wheel 3 is a color filter system, light can be divided into RGB (red, green, blue, RGB) three looks, or light is divided into RGBW(red, green, blue, white, red, green, blue and white) etc. polychrome more, then the light after decomposing is projected on DMD2.
Wherein, on control board, be provided with data-interface and data decomposition chip, view data enters data decomposition chip by this data-interface, by data decomposition chip, view data is decomposed, and the view data after decomposing is sent to the relevant apparatus such as point colour wheel 3 and DMD2 of each cover projecting cell.
Concrete, DMD is a semiconductor optical switch, wherein, is provided with CMOS silicon chip and light absorber on DMD, is provided with 50～1,300,000 micromirror on described CMOS silicon chip.DMD is the light that reflection needs by micromirror, absorbs unwanted light simultaneously realize the projection to light by light absorber, and its direction of illumination is by electrostatic interaction, realizes by controlling micromirror angle.
Concrete, DMD carries out addressing by the memory cell under each micromirror with binary system planed signal, the each micromirror on its array with electrostatic means inclination for opening or closing state.Wherein, by PWM(Pulse Width Modulation, pulse width modulation) technology determines which direction is each micromirror be tilted in as how long.Concrete, micromirror can be in one second switch more than 1000 time, in this, DLP(Digital Light Procession, digital light processing) become a simple optical system.The light that light source sends by collector lens and color filter system (point colour wheel) after, by direct irradiation, on DMD, when on the position that eyeglass is being opened, they are reflected light to and on screen, are formed a digital square pixels projected image by projecting lens.In the time of light source, collector lens, point colour wheel, DMD and projection lens collaborative work, these projection lens that stir just can together reflect the image onto to be demonstrated on metope, motion picture screen or television screen.
Wherein, a slice micromirror represents a pixel, and its transformation rate is 1000 times/second, even faster.Preferably, each micromirror is of a size of 14 μ m × 14 μ m(or 16 μ m × 16 μ m).For ease of regulating its direction and angle, below each eyeglass, be equipped with the tumbler of hinge-like effect.The rotation of micromirror is controlled by the RAM(random access memory from CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductors (CMOS)), random access memory) digital drive signals.In the time that digital signal is written into CMOSAMR, static can activate address electrode, eyeglass and yoke plate (YOKE) to impel hinge means to rotate.Once micromirror receives corresponding signal, can tilt 10 °, thereby make incident light reflection direction change, now, in the micromirror of projection state, be illustrated as " opening ", and with the digital signal from CMOSAMR tilt+12 °; If micro-eyeglass, in non-projection state, is illustrated as " pass ", and tilt-12 °.Meanwhile, the incident light being reflected away under "On" state by projection lens by image projecting to screen; And the incident light being reflected under "Off" state in micromirror is absorbed by light absorber.In brief, the operation principle of DMD is exactly the light needing by micro-mirror device reflection, is absorbed unwanted light and realized simultaneously the projection of image by light absorber, and its direction of illumination is by electrostatic interaction, and by controlling, micromirror angle realizes.
Concrete, according to the different annular configuration of digital projection unit, enumerate the following example and describe.
Embodiment 1
The utility model embodiment provides a kind of digital projection module, and as depicted in figs. 1 and 2, wherein, digital projection unit is two; Two described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction.
Concrete, use the drop shadow spread of two digital efms to spend for horizontal direction 240, vertical direction is faced upward each 60 degree of bowing, and compares compared with the scheme that uses a projecting cell projection in prior art, can make drop shadow spread increase, thereby make user can see more multi-faceted scene.
The utility model embodiment provides a kind of digital projection module, and as shown in Figure 3 and Figure 4, this digital projection unit is three; Three digital projecting cells are around a central point, and annular configuration is spent at interval 120 in the horizontal direction.
Concrete, use the drop shadow spread of three digital efms to spend for horizontal direction 360, vertical direction is faced upward each 60 degree of bowing, and can make drop shadow spread use one or two digital efms to increase, thereby make user see the scene that uses one or two digital efms more multi-faceted.
The utility model embodiment provides a kind of digital projection module, and as shown in Figure 4 and Figure 5, this digital projection unit is four; Wherein, three digital projecting cells are around a central point, and annular configuration is spent at interval 120 in the horizontal direction; Another digital projection unit is vertically arranged.
Concrete, use four digital efms, make each the digital efm horizontal direction interval 120 in three digital efms spend annular configuration, vertical direction is faced upward each 60 degree of bowing, and another digital efm is hung in projection lens top, it is vertically arranged, combine with above-mentioned three digital efms, drop shadow spread's horizontal direction 360 is spent, vertical direction is faced upward 180 degree, 60 degree of bowing, compared to existing technology, one, two of uses or three projecting cells carry out projection, make drop shadow spread larger.
In addition, in the present embodiment, the digital efm using also can be greater than four, concrete, make each the digital efm horizontal direction interval 120 in three digital efms spend annular configuration, vertical direction is faced upward each 60 degree of bowing, other multiple digital efms are vertically arranged, combine with above-mentioned three digital efms, drop shadow spread's horizontal direction interval 360 is spent, vertical direction is faced upward 180 degree, 60 degree of bowing, and even makes vertical direction face upward the scope of bowing larger, makes user can better see the imaging that projection is wider.
Concrete, Fig. 6 and Fig. 7 are the scope that uses above-mentioned four projecting cell projection imagings, and in Fig. 6,7 is the drop shadow spread of the first projecting cell, and 8 is the drop shadow spread of the second projecting cell; 10 is the drop shadow spread of the 4th projecting cell; In Fig. 7,7 is the drop shadow spread of the first projecting cell, and 8 is the drop shadow spread of the second projecting cell; 9 is the drop shadow spread of the 3rd projecting cell.
It should be noted that, the number of above-described embodiment and set-up mode are only preferred embodiment, and number and the set-up mode of the digital efm that the utility model uses are not limited to the explanation in above-described embodiment.
The utility model embodiment provides a kind of digital projection module, comprises two digital projecting cells, and two digital projecting cells are around a central point, and annular configuration is spent at interval 90 in the vertical direction.
Concrete, digital projecting cell in the horizontal direction drop shadow spread is 120 degree, vertical direction is faced upward each 60 degree of bowing, and another digital projection unit is faced upward each 60 degree of bowing in the vertical direction, thereby in conjunction with both, making drop shadow spread is that horizontal direction 120 is spent, face upward 120 degree, 60 degree of bowing, equally can be compared with using a projecting cell to compare in prior art, drop shadow spread is increased, use a scene that digital efm is more multi-faceted thereby user is seen.
The utility model embodiment provides a kind of digital projection module, comprises three these digital projection unit; Three digital projecting cells are around a central point, annular configuration is spent at interval 90 in the horizontal direction, face upward each 60 degree of bowing, can make drop shadow spread use one or two digital efms to increase, thereby make user see the scene that uses one or two digital efms more multi-faceted.
The utility model embodiment provides a kind of digital projection module, comprise two digital projecting cells, two digital projecting cells are around a central point, annular configuration is spent at interval 90 in the horizontal direction, face upward each 60 degree of bowing, can make drop shadow spread use a digital efm to increase, use a scene that digital efm is more multi-faceted thereby user is seen.
The utility model embodiment provides a kind of digital projection module, comprises three digital projecting cells; Wherein, two described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction; Described in another, digital projection unit is vertically arranged, match with the digital projection unit of horizontal direction, make drop shadow spread be, horizontal direction 240 is spent, face upward 120 degree, 60 degree of bowing, make drop shadow spread use one or two digital efms to increase, thereby make user see the scene that uses one or two digital efms more multi-faceted.
The utility model also provides a kind of digital projection instrument, as shown in Figures 1 to 8, comprising: data decomposition chip 11, shell 6, light source 5 and above-mentioned digital projection module; The view data of input is decomposed into multi-path light control signal by data decomposition chip 11; The number of optical control signal is identical with the number of multiple digital projections unit; Each road optical control signal correspondence exports a digital projecting cell to; Light source 5 is arranged on central point.
A kind of digital projection instrument that the utility model embodiment provides, comprise shell 6, light source 5 and above-mentioned multiple digital projections unit, wherein, multiple described digital projections unit is arranged in the form of a ring around a central point, only include a digital projecting cell with digital projection instrument of the prior art, and this digital projection unit is subject to the projection angle restriction of projection lens, make the scope of projection imaging less, general maximum only has level 120 to spend, the scheme of the scope that pitching 60 is spent is compared, it carries out projection by multiple digital projections unit, thereby make digital projection unit not be subject to the restriction of the projection angle of projection lens, greatly increase the scope of projection imaging.
Concrete, collector lens 4, point colour wheel 3, DMD2, projection lens 1 and the control board of every cover projecting cell are all fixed on same aluminium alloy sub-stent, and each sub-stent is fixed on same aluminium alloy main support again.Wherein, usage data decomposes chip 11 view data is decomposed into multi-path light control signal, and optical control signal is exported on point colour wheel 3 and DMD2.
In the present embodiment, organize projecting cell more and share a light source, this light source is fixed on main support.Wherein, described shell is provided with the hole that exposes projection lens, for making projection lens be exposed to outside, can project light onto on screen.
Concrete, light source 5 reflects respectively on each group of DMD after by each component colour wheel, and DMD is receiving after the control signal of control board, light, by each group of projection lens, is respectively organized to light and is thrown into projection screen, formation panoramic picture.
The utility model also provides a kind of digital projection instrument, as shown in Figures 1 to 8, comprising: data decomposition chip 11, shell 6, light source and above-mentioned digital projection module; The view data of input is decomposed into multi-path light control signal by data decomposition chip 11; The number of optical control signal is identical with the number of multiple digital projections unit; Each road optical control signal correspondence exports a digital projecting cell to; The number of light source 5 is identical with the number of digital projection unit; Each digital projection unit correspondence arranges a light source 5.
Concrete, collector lens 4, point colour wheel 3, DMD2, projection lens 1 and the control board of every cover projecting cell are all fixed on same aluminium alloy sub-stent, and each sub-stent is fixed on same aluminium alloy main support again.Wherein, usage data decomposes chip 11 view data is decomposed into multi-path light control signal, and optical control signal is exported on point colour wheel 3 and DMD2.Wherein, described shell is provided with the hole that exposes projection lens, for making projection lens be exposed to outside, can project light onto on screen.
In the present embodiment, organize a light source of the each use of projecting cell, specifically each light source is fixed on the sub-stent how group projecting cells use separately more.Concrete, light source 5 reflects respectively on each group of DMD after by each component colour wheel, and DMD is receiving after the control signal of control board, light, by each group of projection lens, is respectively organized to light and is thrown into projection screen, formation panoramic picture.
A kind of digital projection instrument that the utility model embodiment provides, comprise shell 6, light source 5 and above-mentioned multiple digital projections unit, wherein, multiple described digital projections unit is arranged in the form of a ring around a central point, only include a digital projecting cell with digital projection instrument of the prior art, and this digital projection unit is subject to the projection angle restriction of projection lens, make the scope of projection imaging less, general maximum only has level 120 to spend, the scheme of the scope that pitching 60 is spent is compared, it carries out projection by multiple digital projections unit, thereby make digital projection unit not be subject to the restriction of the projection angle of projection lens, greatly increase the scope of projection imaging.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a digital projection module, is characterized in that, comprising: multiple digital projections unit;
Multiple described digital projections unit is arranged in the form of a ring around a central point.
2. digital projection module according to claim 1, is characterized in that, described digital projection unit is two;
Two described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction.
3. digital projection module according to claim 1, is characterized in that, described digital projection unit is three;
Three described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction.
4. digital projection module according to claim 1, is characterized in that, described digital projection unit is four;
Wherein, three described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction; Described in another, digital projection unit is vertically arranged.
5. digital projection module according to claim 1, is characterized in that, described digital projection unit is two;
Two described digital projection unit are around a central point, and annular configuration is spent at interval 90 in the vertical direction.
6. digital projection module according to claim 1, is characterized in that, described digital projection unit is two;
Two described digital projection unit are around a central point, and annular configuration is spent at interval 90 in the horizontal direction.
7. digital projection module according to claim 1, is characterized in that, described digital projection unit is three;
Three described digital projection unit are around a central point, and annular configuration is spent at interval 90 in the horizontal direction.
8. digital projection module according to claim 1, is characterized in that, described digital projection unit is three;
Wherein, two described digital projection unit are around a central point, and annular configuration is spent at interval 120 in the horizontal direction; Described in another, digital projection unit is vertically arranged.
9. a digital projection instrument, is characterized in that, comprising: the digital projection module in data decomposition chip, shell, light source and claim 1～8 described in any one;
The view data of input is decomposed into multi-path light control signal by described data decomposition chip; The number of described optical control signal is identical with the number of multiple described digital projections unit;
Described in each road, optical control signal correspondence exports a described digital projection unit to;
Described light source is arranged on described central point.
10. a digital projection instrument, is characterized in that, comprising: the digital projection module in data decomposition chip, shell, light source and claim 1～8 described in any one;
The view data of input is decomposed into multi-path light control signal by described data decomposition chip; The number of described optical control signal is identical with the number of multiple described digital projections unit;
Described in each road, optical control signal correspondence exports a described digital projection unit to;
The number of described light source is identical with the number of described digital projection unit;
Each described digital projection unit correspondence arranges a described light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791898.XU CN203691522U (en) | 2013-12-03 | 2013-12-03 | Digital projection module and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791898.XU CN203691522U (en) | 2013-12-03 | 2013-12-03 | Digital projection module and projector |
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| Publication Number | Publication Date |
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| CN203691522U true CN203691522U (en) | 2014-07-02 |
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| CN201320791898.XU Expired - Fee Related CN203691522U (en) | 2013-12-03 | 2013-12-03 | Digital projection module and projector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI639339B (en) | 2017-01-11 | 2018-10-21 | 英華達股份有限公司 | Projecting unit and profecting device using the same |
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2013
- 2013-12-03 CN CN201320791898.XU patent/CN203691522U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI639339B (en) | 2017-01-11 | 2018-10-21 | 英華達股份有限公司 | Projecting unit and profecting device using the same |
| US10416463B2 (en) | 2017-01-11 | 2019-09-17 | Inventec Appliances (Pudong) Corporation | Projecting unit and projecting device using the same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20171203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |