CN101277415A - Exciter - Google Patents
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- CN101277415A CN101277415A CNA2007100385127A CN200710038512A CN101277415A CN 101277415 A CN101277415 A CN 101277415A CN A2007100385127 A CNA2007100385127 A CN A2007100385127A CN 200710038512 A CN200710038512 A CN 200710038512A CN 101277415 A CN101277415 A CN 101277415A
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Abstract
The invention relates to an exciter of a rear projection display. The exciter according to the invention is characterized in that, it is composed of a movable component capable of rotating within specified angle range, a deflection plate formed on the movable component and capable of leading incident light; a fixing component for supporting the movable component; a driving device for driving the movable component to move; and a close light blocking part for preventing close light generated by the fixing component from being deflected to the deflection plate. The exciter according to the invention is capable of avoiding image distortion or heat variation resulted from the close light.
Description
Technical field
The present invention relates to a kind of exciter, refer in particular to a kind of exciter that is applicable in the back projected picture display.
Background technology
Recently, the lighting of display unit, ultra-thin and big picture have become a kind of trend, and especially the display unit of super large picture has become important arguement topic in the demonstration field.
Particularly, because digital television program becomes the main flow program, need and a kind ofly can show more high-resolution device.
Summary of the invention
Purpose of the present invention is exactly in order to address the above problem.With in the back projected picture display unit of high image resolution exciter is installed, provide a kind of have to eliminate close the dysgenic exciter of closing light blocking-up portion that light causes.
In order to realize purpose of the present invention, a kind of exciter comprises:
The movable link that in the angular range of regulation, rotates;
Be formed at the displacement plate that also can make light incident on the above-mentioned movable link;
Support the fixed component of above-mentioned movable link;
The drive unit that above-mentioned movable link is moved;
For blocking-up is incided the light blocking-up portion that closes on the displacement plate at the light of closing that forms on the said fixing member.
The described light blocking-up portion that closes is by constituting with the fixed part that is combined in the said fixing member with the approaching light limited section of the opticpath that constitutes picture.
The described light blocking-up portion that closes can remove the part on the corresponding coil side that forms above-mentioned movable link under the situation that does not hinder the rotation of above-mentioned movable link.
Described close light blocking-up portion with above-mentioned movable link on the side of the fixed component that combines of some bars on, prolong to the direction of another bar that is positioned at reverse side.
Effect of the present invention:
Foundation exciter of the present invention has can be avoided because of the advantage that light makes image quality variation and heating occurring closing.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is an embodiment schematic diagram of having used the display unit of high resolution device among the present invention;
Fig. 2 is another embodiment schematic diagram of having used the display unit of high resolution device among the present invention;
Fig. 3 has used among the present invention in the display unit of high resolution device, the action schematic diagram of displacement plate;
Fig. 4 has used among the present invention in the display unit of high resolution device, as the schematic diagram of movements of the displacement plate of pattern displacement equipment;
Fig. 5 and Fig. 6 have used among the present invention in the display unit of high resolution device, according to moving of displacement plate light are concentrated on light displacement schematic diagram on the screen;
Fig. 7 has used among the present invention in the display unit of high resolution device, the explanation schematic diagram of the 1st image and the 2nd image;
Fig. 8 is the oblique view of exciter among the present invention;
Fig. 9 is the exploded perspective view of exciter among the present invention;
Figure 10 is the back side exploded perspective view of movable link in the exciter of the present invention;
Figure 11 is the exploded perspective view of fixed component in the exciter of the present invention;
Figure 12 is the light schematic diagram that incides in the exciter of the present invention on the displacement plate;
Figure 13 is provided with the schematic diagram of closing light blocking-up portion in exciter of the present invention.
Embodiment
With reference to the accompanying drawings, the execution mode to exciter of the present invention is elaborated.
To the exciter that be used to improve resolution be described in the present invention.
Generally speaking, resolution is meant the term that need come with what pixels presentation video as the noun of presentation video.That is, resolution is used as the scale of presentation video precision when represent images.
In existing display unit,, just used the physical method that increases number of pixels for improving resolution.But employed among the present invention is to utilize people's viewing angle characteristic to improve the method for image resolution ratio.
That is, the present invention obtains the effect identical with improving physical property resolution by demonstrating the image quality of the resolution higher than actual physics resolution.
To be elaborated to this below.But, the present invention is divided into the 1st picture signal and the 2nd picture signal to the picture signal that is equivalent to a frame, come viewing angle characteristic in the 1st position and the 2nd position by on the screen that forms the 1st image and the 2nd image, showing, make people feel certain resolution that improved according to people.
For example, above-mentioned the 1st position and the 2nd position have the following interval of a frame or its above interval, they in vertical direction, horizontal direction or the angular direction kept apart.
Particularly, be the 1st position and the 2nd position in order to make the position displacement that shows the 1st image and the 2nd image among the present invention, and used light path change equipment.
What above-mentioned light path change equipment used is light penetrating object, the path that light is changed in the position of the above-mentioned light penetrating object of foundation or the variation of angle.
Fig. 1 is an embodiment schematic diagram of having used the display unit of high resolution device among the present invention.
Fig. 1 is a kind of as the rear-projection TV illumination instrument that utilizes reflection type LCD, the effect of the reflection-type illumination instrument of the 3PBS system of Fig. 1 is that the light that is penetrated by lamp (lamp) 1 is reflected away ruddiness R, green glow G light through collector lens (condensing lens) and the 1st dichronic mirror (dichroic mirror) 2, filters out blue light B.
The ruddiness and the green glow of reflection reflect green glow by the 2nd dichronic mirror 3, and ruddiness then passes through the printing opacity process.Like this, above-mentioned ruddiness R, green glow G and blue light B just incide the 1st, 2, on 3LCD plate 5a, 5b, 5c, preceding the 1st, 2,3PBS (Polarized Beam Splitter polarizing diffraction splitter) 4a, 4b, the 4c.
Incide each the 1st, 2, 3PBS 4a, 4b, various R, the G of 4c, B light is reflected out, incide the 1st, 2 then, on the 3LCD plate 5a, 5b, 5c, various R, the G of incident, B light according to the 1st, 2, 3LCD plate 5a, 5b, 5c carry out position to exchange and be reflected, thereby through each the 1st, 2, 3PBS 4a, 4b, 4c.
Forming image according to the picture signal that is imported in the middle of the signal handling equipment (not shown) in the middle of above-mentioned the 1st, 2, 3LCD plate 5a, 5b, the 5c.
Seeing through above-mentioned the 1st, 2, 3LCD plate 5a, 5b, 5c and the 1st, 2,3PBS4a, 4b, R, the G of 4c, B image synthesizes on X-prism 6, and incides on the projection lens (Projection lens) 10 through displacement plate 11.
Image through projection lens 10 projects on the screen 12 again.
At this moment, above-mentioned displacement plate 11 also can be between above-mentioned projection lens 10 and screen 12 between above-mentioned X-prism 6 and projection lens 10.
Above-mentioned displacement plate 11 is as the light penetrating object of the sheet-type of light-permeable, and the variation of its position or angle can improve resolution.
Simultaneously, in the embodiment of above-mentioned Fig. 1, though used the optical equipment of reflection type LCD, dichronic mirror and PBS etc.,, reflection type LCD can substitute with light-transmission type LCD, and above-mentioned reflection type LCD also can use LCoS (Liquid Crystal on Silicon: liquid crystal silicon).
In addition, what the embodiment that Fig. 1 shows used is 3 templates of 3 LCD plates, also can use 2 templates of 2 LCD plates in the present invention or use the single panel type of 1 LCD plate, and the structure of optical equipment also can be carried out the variation of various ways.
In addition, the present invention is not only applicable to rear-projection TV, applicable to projector yet.
That is, just be applicable to one embodiment of the present of invention in the legend, it not only is defined in the interest field of invention.
Fig. 2 is another embodiment schematic diagram of having used the display unit of high resolution device among the present invention.
Fig. 2 is applicable to DLP optical system of the present invention, below just describe with reference to Fig. 2.
Light source provides the light that will shine on the DMD 14, and according to picture signal, thereby it can determine it is that dichronic mirror is in open mode illumination is mapped on the screen, thereby or making dichronic mirror be in closed condition can not shine on the screen light.
The DLP optical system is by the lamp 17 that sends light, make the lens pillar 18 of the light transmission of above-mentioned lamp 17 generations, white light by above-mentioned lens pillar 18 is resolved into R, G, the look runner 19 of B, assemble collector lens (Condensing Lens) 13 through the light of above-mentioned look runner 19, reflection is through the prism 15 of the light of above-mentioned collector lens 13, the illumination of above-mentioned prism 15 reflections is mapped to DMD 14 on the screen, the displacement plate 11 that the light that above-mentioned DMD14 is reflected according to the time variation carries out displacement, light through above-mentioned displacement plate 11 is amplified, project projection lens 16 formations such as grade on the screen 12 simultaneously.
To describing with the above-mentioned operation that constitutes the DLP optical system on basis, to assemble according to the curvature of reflector inside by the white light that lamp 17 penetrates, the light of gathering will pass through session (light tunnel) or lens pillar (rod lens) 18.
The brightness of light all makes the luminance proportion that finally shines the light on the screen 12 for a moment, and the lens pillar 18 with this kind function is most important optical components in the rear-projection mode display.
The look runner 19 of light by lens pillar 18 through decomposing color, look runner 19 can rotate on the vertical direction of image.
Passing through collector lens (condensing lens) 13 again through the light of look runner 19 reflexes on the prism 15 and to DMD 14 irradiations.
The opening/closing state of the dichronic mirror that utilization is controlled according to the pixels sampled value makes the light that shines DMD 14 to the irradiation of screen 12 directions or according to outside screen 12.
Above-mentioned DMD 14 opens/leaves state according to the picture signal change of being imported by signal handling equipment (not shown), and forms the image of regulation by it.
At this moment, above-mentioned displacement plate 11 is between prism 15 and the projection lens 16 or between screen 12 and the projection lens 16.In addition, also can be between above-mentioned DMD 14 and prism 15.
But above-mentioned its position of displacement plate 11 cyclic variations and angle are so that illumination is mapped to the diverse location of screen 12.
According to Fig. 1 and embodiment illustrated in fig. 2, displacement plate 11 can be between image forming apparatus that forms image according to R, G, B synthetic and screen selected place.
On the other hand, Fig. 1 and image forming apparatus among Fig. 2 are that the picture signal that is equivalent to a frame is decomposed to become separately the 1st picture signal and the 2nd picture signal, and import, and according to synthetic formation the 1st image and the 2nd image of R, G, B.
Specifically, in the image forming apparatus of Fig. 1, comprise the 1st, 2, 3LCD plate 5a, 5b, 5c), the 1st, 2, 3PBS 4a, 4b, 4c and X-prism 6.
The image forming apparatus of Fig. 2 comprises look runner 19, collector lens (condensing lens) 13 and DMD14.
That is, the picture signal that is equivalent to the present invention's one frame can resolve into a plurality of picture signals, and a plurality of images are synthesized and shows.
The time that shows an image among the present invention is the time after the time that shows a two field picture is cut apart by amount of images.
In addition, in an embodiment of the present invention, the picture signal that is equivalent to a frame is decomposed into the 1st picture signal and the 2nd picture signal, synthetic again the 1st image and the 2nd image, and come out in the 1st position and the 2nd position display of screen in order, thereby being felt, the people improved resolution.
Fig. 3 is an operation chart of having used displacement plate in the display unit of high resolution device in the present invention.
Among Fig. 3, what (a) show is to be under the situation of motion state not at the state that does not have displacement plate 11 or displacement plate 11, the situation that the image that penetrates from prism or projection lens shows in the screen same position.
Otherwise (b) expression is that (c) expression is the situation that the displacement plate rotates in the direction of the clock in the situation of displacement plate 11 by the counter clockwise direction rotation.
At first, if the displacement plate 11 (a) in the state to (b) or (c) state exchange, image will be bending and other position irradiation on screen through displacement plate 11.
That is, displacement plate 11 of the present invention under the situation of projects images, according to the motion of displacement plate 11, shows image as the conversion equipment of light path on other position of screen.
In other words, displacement plate 11 of the present invention is as pattern displacement equipment, and it can change the position that is presented at the image on the screen.
Fig. 4 has used among the present invention in the display unit of high resolution device, as the operating principle schematic diagram of the displacement plate of picture displacement equipment.
Index meter according to the thickness of displacement plate 11, the angle of inclination of displacement plate 11 (incidence angle of light), displacement plate 11 is calculated the mobile degree of the light on the screen 12, and selects thickness, angle of inclination and the refractive index of above-mentioned displacement plate 11 according to the mobile degree of light necessary on the screen 12.
This can utilize the rule of formula 1 to calculate.
[formula 1]
n
1sinθ
1＝n
2sinθ
2
(n
1Be the refractive index of air, n
2Be the refractive index of displacement plate, θ
1Be the incidence angle of light, θ
2Be the refraction angle of light)
Therefore, the path difference D of the light of the above-mentioned displacement plate 11 of process can represent with following formula 2.
[formula 2]
D＝(T/cosθ
2)sin(θ
1-θ
2)
(cosθ
2＝T/x，sin(θ
1-θ
2)＝D/x，θ
2＝sin
-1(n
1sinθ
1/n
2))
Simultaneously, the path difference D of the light of the above-mentioned displacement plate 11 of process is according to the actual excursion that shines the light on the screen 12 of ratio decision of projection lens.
The refractive index of above-mentioned displacement plate 11 can be selected in 1.4～2.0 scope.
What the present invention used is the light penetrating object that can produce the path difference D of light, and what it utilized is the refraction effect of light.
In addition, according to other embodiments of the invention, the path of light and used speculum for a change.
That is, be positioned at the speculum on the light path, it can change the reflection of light angle, and it is that angle according to speculum changes catoptrical path.
The path that utilizes reflection to change light is compared with the path that the refracting characteristic that utilizes light changes light, and changing the path that changes light according to the angle of speculum then needs more to want accurate control.
Pattern displacement degree among the present invention can also be carried out in the scope also littler than pixel volume, also may produce anomaly.But because the excursion of image is little, therefore, in very little scope, carry out displacement for making in the projection lens image projected, just must accurate operation light path change equipment.
Therefore, utilize the light path change equipment ratio of light penetrating object to be easier to control, and have the advantage of the occurrence probability that reduces its error.
Particularly as shown in Figure 4, by the light of the same incidence point incident of light penetrating object the difference D in path having taken place just, has not changed the direct of travel of light.
Using under the situation of speculum, even the light of incident also can change the direct of travel of light according to the angle of speculum on the same position of speculum, therefore, it more can critically be controlled.
Fig. 5 and Fig. 6 have used among the present invention in the display unit of high resolution device, according to moving of displacement plate light are concentrated on light displacement schematic diagram on the screen;
Fig. 5 is in the middle of the display unit of the dot structure with square shape, periodically-varied displacement plate 11, and, the schematic diagram that the image on the screen 12 moves in view of the above.
Among Fig. 5, (a) be that the dot structure of expression prior art is at official hour (the same image on the inherent same position of T=0～T1), from (b) and (c) as can be seen, when time (T=0) and time (T=T1), as the image at each diverse location, identical pixel can improve 2 times of its resolution.
For example, the picture signal that is made of a frame is divided into the 1st picture signal (Odd data) and the 2nd picture signal (Even data), in the time that shows a two field picture, synthesized the image of above-mentioned the 1st picture signal and the 2nd picture signal respectively, and shown in order.
Specifically, under the situation of prior art, if suppose to show 1/60 second identical same image information, the present invention will be resolved into the 1st image information and the 2nd image information to above-mentioned image information, and shows on the 1st position in 1/120 second time and the 2nd position respectively.
Fig. 7 be expression be the chart that the image that is equivalent to a frame is divided into the 1st image and the 2nd image.
The image that is equivalent to a frame is divided into the 1st image and the 2nd image shown in (b) among Fig. 7 shown in (a) among Fig. 7, and the 1st image as shown in Figure 7 separates according to locations of pixels with the 2nd image.
In addition, the display position of the display position of above-mentioned the 1st image (Odd data) and the 2nd image (Even data) carries out conversion according to above-mentioned displacement plate 11.
In (b) of Fig. 5, the display position of the display position of the 1st image (Odd data) and the 2nd image (Even data) carries out conversion along diagonal, and the display position along continuous straight runs of the display position of the 1st image in (c) of Fig. 5 (Odd data) and the 2nd image (Even data) carries out conversion.
In the display unit of the diamond pixels structure in having Fig. 6, conversion is carried out according to the time in the picture position of irradiation screen.
(a) among Fig. 6 is the pixel structure as prior art, be illustrated in official hour (in the T=0～T1), the chart of the same image on same position, (b) produce different images on inherent different separately position of time (T=0) and time (T=T1), the resolution of at this moment identical pixel has been enhanced 2 times.
Fig. 8 is the schematic diagram of exciter of the present invention; Fig. 9 is the decomposing schematic representation of exciter of the present invention.
Figure 10 is the back side decomposing schematic representation of the movable link in the exciter of the present invention; Figure 11 is the decomposing schematic representation of the fixed component in the exciter of the present invention.
To Figure 11, exciter of the present invention comprises fixed component 20 and movable link 30 with reference to Fig. 8.
At first, fixed component 20 and has the fixed part 21 that is fixed on the one side on the light path between image forming apparatus and the screen.The support that also has available screw combination in the chart, but the fixing means in display unit can be varied.
That is, said fixing member 20 only plays fixation to the high resolution device on the light path.
In addition, the side at fixed component 20 has magnet (magnet) 23 and bar (yoke) 22.Above-mentioned magnet 23 and bar 22 as shown in the figure, it is formed at the both sides of fixed component 20, and it just optionally is present in any side.
Above-mentioned magnet 23 is 2 polarized magnets with the N utmost point and S utmost point.
Above-mentioned magnet 23 utilizes the magnetic field of self to drive movable link 30, and above-mentioned bar 22 is owing to have magnetic circuit (path of the magnetic line of force) thereby can improve the efficient of the magnetic line of force.
On the other hand, above-mentioned movable link 30 combines with the inboard of said fixing member 20 and is rotatable.
The shape of above-mentioned movable link 30 can be rectangle or rhombus, and above-mentioned movable link 30 has the suitable structure that can fix deflection machine 31.
Above-mentioned displacement plate 31 can periodically rotate in the angle of regulation at short notice as the aforesaid light penetrating object that sees through light, and can change and make illumination be mapped to position on the screen.
For this reason, for light path,, above-mentioned displacement plate 31 has vertical or with the inclination angle of predetermined angular, therefore, the incidence angle of the light of incident can periodically change on above-mentioned displacement plate 31.
The both sides of above-mentioned movable link 30 have bar 32 to combine with the inserted link groove 27 of said fixing member 20 and are rotatable, and in order to reach the Expected Results of rotation, it also comprises the 1st, 2 bearings 33,36.Therefore, the effect of bar 32 is that above-mentioned rotary middle spindle and light path are in vertical state as the above-mentioned movable link 30 or the rotary middle spindle of above-mentioned displacement plate 31.
The roughly cylindrical and heart insertion rod 32 therein of above-mentioned the 1st bearing 33, above-mentioned the 1st bearing 33 is positioned at the bar insertion groove 27 of said fixing member 20.
Above-mentioned the 2nd bearing 36 is identical with the outside diameter of movable link 30, and is connected with the medial surface of said fixing member 20.
Promptly, in the state in being inserted into said fixing member 20, above-mentioned movable link 30 is fixed according to above-mentioned the 2nd bearing 36 so that it to the left direction move, the 1st bearing 33 1 sides on the right side have latch plate 24 that it is fixed so that it to the right direction move.
Can ensure the appropriate exercise of movable link 30 according to the elasticity of latch plate 24, and play fixation, can realize rotating freely of movable link 30 again simultaneously.
One end of above-mentioned latch plate 24 is connected with fixed component 20, and the other end is in unfixed state, to support above-mentioned movable link 30.
In addition, the 1st lid 25 and the 2nd lid 26 are arranged in the top of above-mentioned the 1st, 2 bearing 33,36, above-mentioned movable link 30 does not break away from side direction on it and plays a supporting role.
Be connected on the movable link 30 with two above-mentioned the 1st lids 25 of key screw, only be connected on the movable link 30 with above-mentioned the 2nd lid 26 of key screw.This structural reason is to guarantee that above-mentioned movable link 30 carries out suitable rotation.
That is, above-mentioned the 2nd lid 26 has certain elasticity, the kinematic similitude of it and above-mentioned latch plate 24.
In other words, the effect of elastic devices is the appropriate exercise that has promptly guaranteed movable link 30, again fixed component 20 is fixed.
In addition, the side of above-mentioned movable link 30 promptly be formed at fixed component 20 on 23 corresponding of magnet on coil 35 is arranged.
As shown in figure 10, for making things convenient for the installation of coil, in the lateral layout of movable link 30 coil support frame 38, coil 35 is fixed on the above-mentioned coil support frame 38.The shape of coil 35 roughly is straight quadrangle or circular band shaped, and is that the center makes movable link 30 motion according to sense of current with above-mentioned magnet.
That is, coil 35 is introduced power supply from power supply supply line 34, and foundation flows through the electric current of coil 35 and the gravitation that interaction produced and the repulsion of the magnet 23 on the fixed component 20 makes above-mentioned movable link 30 motions.That is, be that benchmark makes above-mentioned movable link 30 by rotating clockwise or counterclockwise, with the rotary middle spindle according to the electric current of introducing above-mentioned coil 35.
Though diagram not as another embodiment of the present invention, has magnet at the inner face of above-mentioned movable link, coil bracing frame and coil are arranged on the side of member being relatively fixed with above-mentioned magnet.
As shown in figure 10, displacement plate 31 combines with movable link, be positioned at the position of protuberance 39 of inboard of movable link 30 when displacement plate 31 after, it utilizes supporting member 37 that it is fixed, the shape of protuberance 39 as shown in Figure 9.
Above-mentioned displacement plate 31 is with above-mentioned movable link 30, and it also can be fixed on the movable link 30 even without supporting member 37.
As shown in figure 11, for limiting the anglec of rotation of above-mentioned movable link 30, brake 28 has just been designed in inboard at fixed component 20, and its effect is when being subjected to reason such as external impact or faulty operation and excessive operation, with the rotating range that guarantees movable link 30 in the angle of regulation.
Be positioned on the light path of display unit in the present invention who as above constitutes, the interaction that Control current that foundation inserts and coil 35 and magnet are 23 is rotated.
The rotating range of above-mentioned movable link 30 is set to ± 0.75 degree, and does Periodic Rotating between the 1st position and the 2nd position.
More than above-mentioned movable link 30 rotates once in the time durations of the picture signal of introducing a frame at least.
Therefore, constantly can both feel that resolution is increased substantially.
Indicated light (image) plane of incidence 40 that incides on the above-mentioned displacement plate 31 among Figure 12.As described above, because of the rotation along with above-mentioned displacement plate 31, light periodically projects different positions, so improved resolution.
On the one hand, in the light that is generated in the lamp shown in the lamp shown in Fig. 11 or Fig. 2 17, the light of closing that does not constitute picture is disposed by avoidance.
But an above-mentioned part of closing in the light incides on the above-mentioned displacement plate 31, can cause that image quality descends or heating with making above-mentioned displacement plate 31 additivity, thereby cause the drive characteristic of exciter to descend.
Shown in Figure 13 for being equipped with to preventing because of closing the exciter of closing light blocking-up portion 50 that image quality that light causes and drive characteristic reduce.
As shown in figure 13, close light blocking-up portion 50 and be fixed on the said fixing member 20, between above-mentioned displacement plate 31 and light source, the part (closing light) in the light that incides on the above-mentioned displacement plate 31 capable of blocking.
The structure of closing light blocking-up portion 50 is: a side is fixed on the said fixing member 20, installs along the plane of incidence 40 directions of above-mentioned displacement plate 31.
More particularly, above-mentioned close light blocking-up portion 50 be with above-mentioned movable link 30 on the side of the fixed component 20 that combines of some bars 32 on, prolong to the direction of another bar 32 that is positioned at reverse side.
In addition, the above-mentioned light blocking-up portion 50 that closes is by constituting with the fixed part 53 that is combined in said fixing member 20 with the approaching light limited section 51 of the opticpath that constitutes picture.Also have, close light blocking-up portion 50 under the situation that does not hinder above-mentioned movable link 30 rotations, can remove the part 52 on corresponding coil 35 sides that form above-mentioned movable link 30.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating purpose of the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (4)
1. exciter is characterized in that comprising:
The movable link that in the angular range of regulation, rotates;
Be formed at the displacement plate that also can make light incident on the above-mentioned movable link;
Support the fixed component of above-mentioned movable link;
The drive unit that above-mentioned movable link is moved;
For blocking-up constitutes in the light blocking-up portion that closes that light incides on the displacement plate that closes that forms on the said fixing member.
2. exciter as claimed in claim 1 is characterized in that:
The described light blocking-up portion that closes is by constituting with the fixed part that is combined in the said fixing member with the approaching light limited section of the opticpath that constitutes picture.
3. exciter as claimed in claim 2 is characterized in that:
The described light blocking-up portion that closes can remove the part on the corresponding coil side that forms above-mentioned movable link under the situation that does not hinder the rotation of above-mentioned movable link.
4. exciter as claimed in claim 1 is characterized in that:
Described close light blocking-up portion with above-mentioned movable link on the side of the fixed component that combines of some bars on, prolong to the direction of another bar that is positioned at reverse side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100385127A CN101277415A (en) | 2007-03-27 | 2007-03-27 | Exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100385127A CN101277415A (en) | 2007-03-27 | 2007-03-27 | Exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101277415A true CN101277415A (en) | 2008-10-01 |
Family
ID=39996368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100385127A Pending CN101277415A (en) | 2007-03-27 | 2007-03-27 | Exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101277415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884896A (en) * | 2016-09-30 | 2018-04-06 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical mechanism |
-
2007
- 2007-03-27 CN CNA2007100385127A patent/CN101277415A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884896A (en) * | 2016-09-30 | 2018-04-06 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical mechanism |
| CN109298498A (en) * | 2016-09-30 | 2019-02-01 | 扬明光学股份有限公司 | light path adjusting device |
| CN107884896B (en) * | 2016-09-30 | 2021-05-18 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical mechanism |
| CN113219615A (en) * | 2016-09-30 | 2021-08-06 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical mechanism |
| CN113219615B (en) * | 2016-09-30 | 2023-10-13 | 扬明光学股份有限公司 | Light path adjusting mechanism and optical mechanism |
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