CN101030019A - Light-path adjusting mechanism of projecting display device - Google Patents
Light-path adjusting mechanism of projecting display device Download PDFInfo
- Publication number
- CN101030019A CN101030019A CN200610058099.6A CN200610058099A CN101030019A CN 101030019 A CN101030019 A CN 101030019A CN 200610058099 A CN200610058099 A CN 200610058099A CN 101030019 A CN101030019 A CN 101030019A
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- light
- adjusting mechanism
- projection display
- light valve
- path adjusting
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Abstract
A light-path regulation mechanism of projection display consists of a light valve being set in interval way to light splitter and a regulation unit. It is featured as forming said regulation unit by regulation base being set between said light valve and said light splitter as well as fixing component set on said base and used to vary angle of said light valve then enabling to use such simple mechanical structure to vary position and angle between light valve and regulation base.
Description
Technical field
The present invention relates to a kind of light-path adjusting mechanism, particularly relate to a kind of light-path adjusting mechanism of the projection display.
Background technology
The projection display is a kind of common electronic equipment, in order to improve the picture quality that it projects, therefore, the launching position of three kinds of coloured light of red, green, blue in the projection display, and three coloured light through behind the modulation, pool light path that a light beam penetrates again and adjust function and become quite important.So industry is when making the projection display, must be earlier with in the projection display, for example the position of liquid crystal board and other each element and angular setting are after optimum condition, be combined with each other again, reach good light path by this kind mode and adjust function, be beneficial to carry out the beam split of each road coloured light and close light.
Be used to adjust the position and the angle of element in the industry in the past, again combination of elements mode is together had two kinds: a kind of is to utilize six axial adjustment machines collocation ultraviolet lights (UV light) to solidify gummed, another kind then is the welding of six axial adjustment machines collocation laser, above-mentioned six are meant along the shift position of three axles of liquid crystal board length, and with respect to the anglec of rotation of described three axles.But the cost height of this six axial adjustment machines, instrument and equipment volume are big, need the professional during maintenance, and the solid of UV photocuring gummed is with different by the thermal expansivity of glueing material, the image quality instability of the projection display that produces, in addition, the mode of laser welding is long in the time of closing the light contraposition.Can know that by above explanation aforesaid mode has disappearances such as equipment cost height, use inconvenience.
Summary of the invention
The objective of the invention is is providing a kind of elements combination and light modulation convenient, and the light-path adjusting mechanism of the projection display of low cost of manufacture.
Light-path adjusting mechanism of the present invention is to be used for the projection display, and can receive the coloured light that is cast out by a spectroscope and adjust the light path of this coloured light, comprising: a light valve, and an adjusting gear.This light valve is to be provided with at interval with spectroscope, and receive coloured light and modulation in addition, this adjusting gear comprises an adjustment seat that is positioned between spectroscope and light valve, and one with light valve can change the distance and the mode of angle, be installed in the fixed cell in this adjustments.
Utilizing fixed cell that light valve is installed in adjusts on the seat, and when installing, can change position and angle between light valve and adjustment seat, reach the purpose of adjusting light path, this kind adjusted fixing mode and removed the disappearance that in the past must use the instrument and equipment of large-scale costliness from, makes the present invention have advantages such as the light modulation of being easy to, the combination of elements mode is simple, cost of manufacture is low.
Description of drawings
Fig. 1 is a three-dimensional exploded view, shows a most preferred embodiment of light-path adjusting mechanism of the present invention;
Fig. 2 is a user mode reference diagram of this most preferred embodiment, shows the matching relationship of other related elements on this light-path adjusting mechanism and the projection display;
Fig. 3 is a vertical view of this most preferred embodiment;
Fig. 4 is not complete sectional exploded view of this most preferred embodiment;
Fig. 5 is the local assembled sectional view of being got along the 5-5 line among Fig. 3, shows that light valve of this most preferred embodiment and one adjust seat and is and is horizontally disposed with; And
Fig. 6 is the local assembled sectional view of a similar Fig. 5, shows non-being horizontally disposed with between this light valve and this adjustment seat.
Embodiment
Be elaborated below by a most preferred embodiment and accompanying drawing light-path adjusting mechanism to the projection display of the present invention.
As shown in Figure 1, 2, 3, the most preferred embodiment of light-path adjusting mechanism 10 of the present invention is triplets, and be installed in together in the projection display 1, be used to adjust the light path of three road coloured light, when supposing that coloured light that the projection display 1 is handled is twice, the quantity of described light-path adjusting mechanism 10 is exactly two.In user mode illustrated in Figure 2, this projection display 1 has two microscope bases 11 (only illustrating among Fig. 2), and spectroscope 12 (not showing among Fig. 2) that is folded on the microscope base 11, this spectroscope 12 can allow at least one coloured light be cast out by an exiting surface 121, transmits toward this light-path adjusting mechanism 10 again.And each light-path adjusting mechanism 10 all comprises: light valve 3, radiating seat 4, adjusting gear 5, a ripple plate (wave plate) 6, and a dust guard 7.
Shown in Fig. 1,4,5, the light valve 3 of present embodiment is a liquid crystal board, and this liquid crystal board can be a reflection liquid crystal, also can be the form of penetration liquid crystal board.And in the projection display 1 that in the past has the three-chip type liquid crystal board, described liquid crystal board is to be respectively applied for three kinds of coloured light of modulation red, green, blue, make the reflection or transmission of coloured light via liquid crystal board after, be combined into a branch of light at last again.
Above-mentioned light valve 3 is to be provided with at interval with spectroscope 12, and the exiting surface 121 of corresponding spectroscope 12, and the modulation in addition to receive coloured light makes coloured light reflection or transmission behind the modulation.Described light valve 3 comprises a rectangular body board 31, and four rectangular arranged and from the outstanding installation portion 32 of body board 31 levels, and each installation portion 32 all has a mounting hole that runs through up and down 321.
The radiating seat 4 of present embodiment is provided in a side of light valve 3 tops, comprises a rectangular radiating part 41, and four installation portions of giving prominence to from four jiaos of levels of radiating part 41 42, and each installation portion 42 also all has a mounting hole that runs through up and down 421.In the present embodiment, the mounting hole 421 of this radiating seat 4 is mounting holes 321 of corresponding light valve 3.
This adjusting gear 5 comprises that one is erected at the holder 51 on the aforementioned microscope base 11, an adjustment seat 52 that combines with holder 51, and one with light valve 3 can change the mode of distance and angle, be installed in the fixed cell 53 in this adjustments 52.Wherein, this holder 51 has the fixation wall 511 of a level, two outstanding walls 512 that extend from the both sides, front and back of fixation wall 511, and two from outstanding walls 512 towards the outstanding trips 513 of light valve 3 directions, and on fixation wall 511, have the light hole 514 of a up/down perforation.This adjustment seat 52 comprises a fixation wall 511 and to have a basal wall 521, two of a hollow hole 520 outstanding from basal wall 521 levels and snap in the circular arc engaging wall 522 of described trip 513 of reclining, and four vertical card, 522 ground that combine harmoniously are outstanding towards the installation portion 32 of light valve 3, and distinctly form one directly to the fixedly protruded stigma 523 of adjusting hole 527, each is adjusted hole 527 and all has a large aperture portion that is positioned at the top 524, a screw portion 525 that is positioned at large aperture portion 524 belows, and a small-bore portion 526 that is positioned at screw portion 525 belows.
Said fixing unit 53 comprises four springs 531 that are located at respectively on the fixedly protruded stigma 523 of adjusting seat 52, and four with radiating seat 4, light valve 3, adjust seat 52 screws that are fixed together 532.Each screw 532 is that the mounting hole 421,321 from radiating seat 4 and light valve 3 passes spring 531, and screw lock is in adjusting hole 527, and the first bar portion 533, one that all have a corresponding large aperture portion 524 that adjusts hole 527 are positioned at the threaded shank 534 of the first bar portion, 533 belows and corresponding screw portion 525, and second a bar portion 535 that is positioned at threaded shank 534 belows and respective apertures footpath portion 526.Wherein, the path length of this first bar portion 533 is the path lengths greater than the second bar portion 535 and threaded shank 534.
The ripple plate 6 of present embodiment is provided in a side of 3 of this adjustment seat 52 and light valves, 7 of above-mentioned dust guards are provided in a side of between this ripple plate 6 and the light valve 3, be used for isolated dirt bits and also can adjust the anglec of rotation of ripple plate 6, the first dustproof seat 71 that comprises a contiguous light valve 3, and second dustproof seat 72 that is set in the first dustproof seat, 71 belows, because this dust guard 7 is not an improvement emphasis of the present invention, no longer explanation.
Light-path adjusting mechanism 10 of the present invention is when assembling, the trip 513 that to adjust the engaging wall 522 corresponding holders 51 of seat 52 earlier screws in, make and adjust seat 52 and be located on the holder 51 in rotatable mode, again holder 51 microscope base 11 that reclines, utilize screw 54 that the outstanding wall 512 of holder 51 is locked on the microscope base 11, holder 51 is erected on the microscope base 11 with adjusting seat 52, and aforementioned spring 531 is arranged on fixedly on the protruded stigma 523 one by one.
Place ripple plate 6 on the seat 52 in adjusting in regular turn, dust guard 7, light valve 3 and radiating seat 4, again screw 532 is passed the mounting hole 421 of radiating seat 4 and light valve 3,321, and in the spring 531 that is provided with in advance, and lock in the adjustment hole 527 of adjusting seat 52, at this moment, the first bar portion 533 of these screws 532 is position mounting holes 421 at radiating seat 4 and light valve 3, in 321, and there is part to be positioned at the large aperture portion 524 that adjusts hole 527, the threaded shank 534 of screw 532 then is arranged in screw portion 525, utilize a not shown instrument that screw 532 is screwed again, just assembling is finished.
The present invention in use, meeting directed towards light valve 3 after coloured light is by exiting surface 121 ejaculations of spectroscope 12 by the degree of depth of adjusting four screws 532, can change the position and the angle of light valve 3, coloured light with control incident drops on position on the light valve 3, is equivalent to adjust light path so adjust light valve 3.
In the present invention, can adjust the angle of this light valve 3 and the parameter of position and have three.At first define X-axis line, a Y-axis line that is provided with along the Width of light valve 3 that is provided with along the length direction of light valve 3, and a z axis that is provided with along light valve 3 normal to a surface directions, these three axis are orthogonal in twos.Aforementioned three parameters that can modulation then are respectively: light valve 3 along X-axis line rotation back and the angle of adjusting 52 of seats, light valve 3 along Y-axis line rotation back with the angle of adjusting between seat 52, and light valve 3 and this adjustment 52 distances at the Z between centers.
Be illustrated in figure 5 as light valve 3 and adjust seat 52 and be horizontally disposed state, loosen screw 532 on one side this moment, just as shown in Figure 6, a light valve 3 and an angle of adjusting 52 changed to some extent.In addition, when screwing simultaneously or loosening all screws 532, then be to change light valve 3 and adjust the distance of seat 52 on the Z axle.And when screwing or loosening screw 532, light valve 3 is continued upwards to shore, just can allow light valve 3 and move, and be positioned at the coloured light of an optimum position and modulation incident with respect to adjusting seat 52 by the elastic force of spring 531.
On the other hand, bar portion 533,534,535 designs of screw 532 of the present invention make screw 532 very firm when moving up and down adjustment.Wherein, threaded shank 534 is to be used for and fixedly protruded stigma 523 lockings, and when screwing and loosen screw 532, the first bar portion 533 by this diameter maximum is located in the mounting hole 421 of radiating seat 4, and the path length of the first bar portion 533 is the same big with mounting hole 421 internal diameters, therefore mounting hole 421 has spacingly, and makes the screw 532 firm functions that move.
Learn by above explanation, the present invention utilizes fixed cell 53 that light valve 3 is fixed on to adjust on the seat 52, and in fixing, utilize the position and the angle of 52 of screw 532 and spring 531 change light valves 3 and adjustment seats, reach the purpose of adjusting light path, this kind adjustment mode is very easy, and after the light path adjustment is finished again with each combination of elements, do not need large-scale with expensive instrument and equipment, just these element assemblings can be finished, so can reduce cost of manufacture really.
Claims (10)
1. the light-path adjusting mechanism of a projection display, this projection display has a spectroscope that can project at least a coloured light, and this light-path adjusting mechanism comprises that one is provided with and receives the coloured light and the light valve of modulation in addition at interval with this spectroscope, and an adjusting gear, it is characterized in that:
This adjusting gear comprises an adjustment seat that is positioned between spectroscope and light valve, and one with light valve can change the distance and the mode of angle, be installed in the fixed cell in this adjustments.
2. the light-path adjusting mechanism of the projection display as claimed in claim 1, it is characterized in that: this light valve is a liquid crystal board.
3. the light-path adjusting mechanism of the projection display as claimed in claim 2 is characterized in that: this fixed cell has four and is positioned at the springs of adjusting on the seat, and four pass spring respectively and with this light valve with adjust a seat screw lock screw together.
4. the light-path adjusting mechanism of the projection display as claimed in claim 3, it is characterized in that: this light-path adjusting mechanism also comprises a radiating seat that is located on the light valve, this radiating seat comprises a radiating part, and four outstanding and have the installation portion of a mounting hole respectively from the radiating part level, and described screw be the mounting hole that passes radiating seat with light valve with adjust the seat screw lock together.
5. the light-path adjusting mechanism of the projection display as claimed in claim 4, it is characterized in that: this adjusting gear also comprises a holder that combines with the adjustment seat, this holder comprises a fixation wall, two outstanding walls that extend from fixation wall, and two trips of giving prominence to from outstanding wall.
6. the light-path adjusting mechanism of the projection display as claimed in claim 5, it is characterized in that: this adjustment seat comprises two side-prominent and snap in the engaging wall of the trip of this holder from basal wall of a basal wall, two, and four outstanding and distinctly form a fixedly protruded stigma of adjusting the hole towards light valve from engaging wall.
7. the light-path adjusting mechanism of the projection display as claimed in claim 6 is characterized in that: this light-path adjusting mechanism comprises that also is located at a ripple plate of adjusting between seat and light valve.
8. the light-path adjusting mechanism of the projection display as claimed in claim 7, it is characterized in that: this light-path adjusting mechanism also comprises a dust guard that is located between ripple plate and light valve.
9. the light-path adjusting mechanism of the projection display as claimed in claim 8, it is characterized in that: each is adjusted the hole and all has large aperture portion, a screw portion that is positioned at subordinate side, large aperture that is positioned at the top, and small-bore portion that is positioned at screw subordinate side, and the screw of each fixed cell all has the threaded shank that the first bar portion, of a corresponding large aperture portion are positioned at the first bar subordinate side and corresponding screw portion and second a bar portion that is positioned at threaded shank below and respective apertures footpath portion.
10. the light-path adjusting mechanism of the projection display as claimed in claim 9, it is characterized in that: the path length of the first bar portion of each screw is the path length greater than the second bar portion and threaded shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610058099.6A CN101030019A (en) | 2006-02-28 | 2006-02-28 | Light-path adjusting mechanism of projecting display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610058099.6A CN101030019A (en) | 2006-02-28 | 2006-02-28 | Light-path adjusting mechanism of projecting display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101030019A true CN101030019A (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610058099.6A Pending CN101030019A (en) | 2006-02-28 | 2006-02-28 | Light-path adjusting mechanism of projecting display device |
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| CN (1) | CN101030019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317148A (en) * | 2014-09-29 | 2015-01-28 | 温玉桂 | Projector and projection TV |
| CN104748945A (en) * | 2015-03-27 | 2015-07-01 | 中国科学院西安光学精密机械研究所 | System and method for detecting optical axis pointing consistency of corner reflector or corner reflector array |
| CN107884898A (en) * | 2016-09-30 | 2018-04-06 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical framework |
-
2006
- 2006-02-28 CN CN200610058099.6A patent/CN101030019A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317148A (en) * | 2014-09-29 | 2015-01-28 | 温玉桂 | Projector and projection TV |
| CN104317148B (en) * | 2014-09-29 | 2016-06-01 | 温玉桂 | Projector and projection TV |
| CN104748945A (en) * | 2015-03-27 | 2015-07-01 | 中国科学院西安光学精密机械研究所 | System and method for detecting optical axis pointing consistency of corner reflector or corner reflector array |
| CN104748945B (en) * | 2015-03-27 | 2017-08-25 | 中国科学院西安光学精密机械研究所 | System and method for detecting optical axis pointing consistency of corner reflector or corner reflector array |
| CN107884898A (en) * | 2016-09-30 | 2018-04-06 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical framework |
| CN107884898B (en) * | 2016-09-30 | 2021-04-27 | 扬明光学股份有限公司 | Optical path adjusting mechanism and optical framework |
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