CN100397239C - Projecting lens set and vibration device - Google Patents
Projecting lens set and vibration device Download PDFInfo
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- CN100397239C CN100397239C CNB2004101034586A CN200410103458A CN100397239C CN 100397239 C CN100397239 C CN 100397239C CN B2004101034586 A CNB2004101034586 A CN B2004101034586A CN 200410103458 A CN200410103458 A CN 200410103458A CN 100397239 C CN100397239 C CN 100397239C
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- light reflection
- reflection element
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- lens group
- projection lens
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Abstract
The present invention relates to a projecting lens set and a vibration device thereof. The vibration device comprises a light reflecting element, a bearing element, a base, at least one magnetic element and at least one coil loop, wherein the light reflecting element is arranged on the bearing element; at least one supporting element is arranged at one surface of the base vertically and supports the bearing element and the light reflecting element; the magnetic element is arranged on the base and is arranged near one side edge of the light reflecting element; the magnetic element is provided with a first polarity and a second polarity; the coil loop is assembled and wound at the side edge of the light reflecting element relatively to the magnetic element; when the coil loop changes the direction of current, attraction magnetic force and repulsion magnetic force are formed between the light reflecting element and the magnetic element, so that the light reflecting element can be vibrated. Because of the vibration of the light reflecting element, an optical path can displace, the discontinuity of pictures resulted from gaps on a digital microlens wafer in a projection system can be eliminated by using visual persistence, and thereby, the present invention has strong practicability.
Description
Technical field
The present invention relates to a kind of projection lens group and vibrating device thereof, particularly relate to a kind of projection lens group and vibrating device thereof that is used in image projecting system.
Background technology
Current under the multiple demand of big display area, miniaturization and lightweight system, image projecting system has become one of subitem the most popular in the present opto-electronics.
And mainly optical projection system can be divided into the three major types type according to the principle of projection, it is respectively LCD projecting system (Liquid Crystal Display, LCD), monocrystalline silicon LCD projecting system (LiquidCrystal on Silicon, LCOS) and DLP Digital Light Processing optical projection system (Digital LightProcessing, DLP), wherein, DLP is owing to have high brightness, correct color reproducibility, reaction time, no noise and advantage such as compact fast, thereby becomes one of optical projection system of present a new generation hot topic.
Seeing also shown in Figure 1ly, is one to show the synoptic diagram of existing known DLP Digital Light Processing optical projection system.Existing known DLP formula optical projection system 1, be to adopt numerical digit control, and utilize the reflected light principle, focus on via lens 12 after will gathering from the light of a light source 11, pass again after the colored filter 13 of redgreenblue, be projected to a numerical digit micro mirror wafer (Digital Micro-mirrorDevice, DMD) on 14, have many small movable lens on the numerical digit micro mirror wafer 14, via drive electrode control movable lens angle of inclination and deflection period, the switches light reflection enters a projection lens group 15, and projection lens group 15 generally is to comprise the plural pieces lens, it is arranged in pairs or groups usually and uses a catoptron 151 to make light ray bending, is projected to a screen 16 imagings by catoptron 151 change light path relief light amplify through lens.
Wherein, numerical digit micro mirror wafer 14 is to be used for replacing in traditional liquid crystal projector, is responsible for presenting the liquid crystal panel of image, is a very high-accuracy technology, sees also shown in Figure 2ly, is one to show the synoptic diagram of existing known numerical digit micro mirror wafer.This numerical digit micro mirror wafer 14, be to constitute by CMOS SRAM memory cell 141 and small movable lens 142, each movable lens 142 is equivalent to a picture element (Pixel), and each movable lens 142 can both reflect away light from both direction, reflection direction is then decided on the memory cell 141 of movable lens 142 bottoms, for instance, when memory cell 141 is in " ON " state, movable lens 142 can rotate to+12 degree, if this memory cell 141 is in " OFF " state, movable lens 142 can rotate to-12 degree, the variation of mat movable lens 142 anglecs of rotation and incident light reflection entered (ON) or leave the incidence hole of (OFF) projection lens group 15, numerical digit micro mirror wafer 14 is made up of more than 130 ten thousand movable lens 142 approximately, the about 17 μ m of each movable lens 142 size, and the about 1.0 μ m in gap of 142 of movable lens.Yet, though the gap of 142 of movable lens is very narrow and small, can be when Projection Display, this gap given amplify, and influence the continuity of picture.
Again, see also Fig. 1 and shown in Figure 3, Fig. 3 is the existing known catoptron of a demonstration and the synoptic diagram of cover plate.In existing known projection lens group 15, catoptron 151 is to be fixed on the cover plate 152, and cover plate 152 then is fixed on the barrel 153 of projection lens group 15, makes catoptron 151 be positioned at barrel 153 and is fixed thereon.
Combine by above-mentioned, because existing known catoptron 151 is to be fixed, and the continuity that influences picture can be amplified because of projection in the gap of the movable lens 142 of numerical digit micro mirror wafer 14, therefore the uncontinuity of projected picture is caused in the gap that how to solve numerical digit micro mirror wafer (DMD), is an important topic in fact.
This shows that above-mentioned existing projection lens group obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that the projection lens group exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing projection lens group exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of uncontinuity that can improve picture of new structure, and then can increase the projection lens group and the vibrating device thereof of the quality and the image verisimilitude of picture, and can improve general existing projection lens group, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing projection lens group exists, and a kind of projection lens group and vibrating device thereof of new structure are provided, technical matters to be solved is to make its uncontinuity that can improve picture, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of vibrating device that the present invention proposes, it comprises: a light reflection element; One holding element, this light reflection element are arranged on this holding element; One pedestal, surface thereof stand and are provided with at least one support component, and this support component is to support this holding element and this light reflection element; At least one magnetic element, it is a side that is arranged on this pedestal and is adjacent to this light reflection element, this magnetic element has one first polarity and one second polarity; And at least one wire loop, it is the side that relative this magnetic element group is around in this light reflection element, when this wire loop change direction of current, have one between this light reflection element and this magnetic element and inhale magnetic force and one magnetic force that repels each other mutually, so that this light reflection element vibrates.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid vibrating device, wherein said wire loop have a coil and a switch loop.
Aforesaid vibrating device, wherein said light reflection element are to be an eyeglass, and this magnetic element is to be a magnet.
Aforesaid vibrating device, it more comprises at least one flexible member, it is arranged under this holding element.
Aforesaid vibrating device, the vibration frequency of wherein said light reflection element are to be 60 hertz.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to the projection lens group that the present invention proposes, it comprises: a barrel, and it has a through hole; An and vibrating device, it comprises a light reflection element, one holding element, one pedestal, at least one magnetic element and at least one wire loop, this light reflection element is arranged on this holding element, this pedestal one surface is stood and is provided with at least one support component, this support component is to support this holding element and this light reflection element, this magnetic element is a side that is arranged on this pedestal and is adjacent to this light reflection element, this magnetic element has one first polarity and one second polarity, this wire loop is the side that relative this magnetic element group is around in this light reflection element, when this wire loop change direction of current, have one between this light reflection element and this magnetic element and inhale magnetic force and one magnetic force that repels each other mutually, so that this light reflection element vibration, wherein, this pedestal is to combine with this through hole, makes this light reflection element be positioned at this barrel.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid projection lens group, wherein said wire loop are to have a coil and a switch loop.
Aforesaid projection lens group, wherein said light reflection element are to be an eyeglass, and this magnetic element is to be a magnet.
Aforesaid projection lens group, it more comprises at least one flexible member, it is arranged under this holding element.
Aforesaid projection lens group, the vibration frequency of wherein said light reflection element are to be 60 hertz.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, according to vibrating device of the present invention, comprise a light reflection element, a holding element, a pedestal, at least one magnetic element and at least one wire loop.Wherein, light reflection element is to be arranged on the holding element; Pedestal one surface is upright at least one support component of establishing, and support component is to support holding element and light reflection element; It is a side that is arranged on the pedestal and is adjacent to light reflection element for a magnetic element, and magnetic element is to have one first polarity and one second polarity; Wire loop is the side that relative magnetic element group is around in light reflection element, when wire loop change direction of current, has one between light reflection element and the magnetic element and inhales magnetic force and one magnetic force that repels each other mutually, and light reflection element is vibrated.
Again, in order to achieve the above object, according to projection lens group of the present invention, it comprises a barrel and a vibrating device.Wherein, barrel is to have a through hole; Vibrating device is to comprise a light reflection element, one holding element, one pedestal, at least one magnetic element and at least one wire loop, light reflection element is to be arranged on the holding element, pedestal one surface is upright at least one support component of establishing, support component is to support holding element and light reflection element, magnetic element is a side that is arranged on the pedestal and is adjacent to light reflection element, magnetic element is to have one first polarity and one second polarity, wire loop is the side that relative magnetic element group is around in light reflection element, when wire loop change direction of current, have one between light reflection element and the magnetic element and inhale magnetic force and one magnetic force that repels each other mutually, make the light reflection element vibration, wherein, pedestal is to combine with through hole, makes light reflection element be positioned at barrel.
By technique scheme, projection lens group of the present invention and vibrating device thereof have following advantage at least: from the above, because according to projection lens group of the present invention and vibrating device thereof, it is the principle of utilizing polarity there is a natural attraction between the sexes the same sex to repel each other, when the coil that is around in light reflection element when group passes to electric current, can produce a magnetic field and this magnetic field interacts with the magnetic element that is adjacent to light reflection element, make between light reflection element and the magnetic element to inhale mutually with repelling each other and vibrate by changing direction of current because of magnetic force, the projection lens group that will comprise this vibrating device (for example: DLP formula optical projection system) is applied in the optical projection system, because the vibration of light reflection element makes the light path displacement, utilizes persistence of vision to eliminate the picture uncontinuity that cause in the gap on the numerical digit micro mirror wafer in the optical projection system.
In sum, the projection lens group and the vibrating device thereof of special construction of the present invention, can improve the uncontinuity of picture, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have technically than much progress, and produced handy and practical effect, and more existing projection lens group has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram that a demonstration has known DLP Digital Light Processing optical projection system now.
Fig. 2 is the synoptic diagram that a demonstration has known numerical digit micro mirror wafer now.
Fig. 3 is the existing known catoptron of a demonstration and the synoptic diagram of cover plate.
Fig. 4 is the schematic side view of a demonstration according to the vibrating device of preferred embodiment of the present invention.
Fig. 5 one shows according to looking synoptic diagram on the vibrating device of preferred embodiment of the present invention.
Fig. 6 is the schematic side view of a demonstration according to another vibrating device of preferred embodiment of the present invention.
Fig. 7 is the synoptic diagram of a demonstration according to the projection lens group of preferred embodiment of the present invention.
1:DLP formula optical projection system 11: light source
12: lens 13: colored filter
14: numerical digit micro mirror wafer 141: memory cell
142: movable lens 15: the projection lens group
151: catoptron 152: cover plate
153: barrel 16: screen
2: vibrating device 20: light reflection element
21: holding element 23: pedestal
231: support component 24: magnetic element
242: the second polarity of 241: the first polarity
25: wire loop 251: coil
252: switch loop 26: flexible member
3: projection lens group 31: barrel
311: through hole
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, projection lens group and its embodiment of vibrating device, structure, feature and effect thereof to foundation the present invention proposition, describe in detail as after, wherein components identical will be illustrated with the identical symbol of consulting.
See also Fig. 4 and shown in Figure 5, be one show according to the side-looking of the vibrating device of preferred embodiment of the present invention and on look synoptic diagram.According to the vibrating device 2 of preferred embodiment of the present invention, comprise a light reflection element 20, a holding element 21, a pedestal 23, at least one magnetic element 24 and a wire loop 25, wherein:
This light reflection element 20 is to be arranged on the holding element 21.In the present embodiment, this light reflection element 20 is to be an eyeglass.
This pedestal 23, surface thereof are upright at least one support components 231 that is provided with, and this support component 231 is to support holding element 21 and light reflection element 20.
This magnetic element 24, be to be arranged on the pedestal 23, and be adjacent to a side (as shown in Figure 4) of light reflection element 20, in addition, magnetic element 24 also can be adjacent to the relative dual-side (as shown in Figure 5) of light reflection element 20, wherein, magnetic element 24 has one first polarity 241 and one second polarity 242.In the present embodiment, magnetic element 24 is to be a magnet, and as shown in Figure 4, first polarity 241 can be the N utmost point, and second polarity 242 can be the S utmost point.
This wire loop 25, it is the side that group is around in light reflection element 20, and wire loop 25 is relative magnetic elements 24 and being provided with, therefore, wire loop 25 can be formed at a side (as shown in Figure 4) of light reflection element 20, or be formed at the relative dual-side (as shown in Figure 5) of light reflection element 20, in the present embodiment, wire loop 25 is to have a coil 251 and a switch loop 252, when 252 control coils, the 251 change direction of current of switch loop, have one between light reflection element 20 and the magnetic element 24 and inhale magnetic force and one magnetic force that repels each other mutually, and make light reflection element 20 vibrations (shown in the arrow among Fig. 4).In the present embodiment, the vibration frequency of light reflection element 20 is to be 60 hertz.
In addition, seeing also shown in Figure 6ly, is one to show the schematic side view according to another vibrating device of preferred embodiment of the present invention.The vibrating device 2 of present embodiment more comprises at least one flexible member 26, and it is to be arranged under the holding element 21, the back stretch of the direction that tilts when light reflection element 20 vibration to be provided.This flexible member 26 is to be a reed in the present embodiment.
Again, seeing also shown in Figure 7ly, is one to show the synoptic diagram according to the projection lens group of preferred embodiment of the present invention.According to the projection lens group 3 of preferred embodiment of the present invention, comprise a barrel 31 and a vibrating device 2, wherein:
This barrel 31 is to have a through hole 311;
This vibrating device 2 comprises a light reflection element 20, a holding element 21, a pedestal 23, at least one magnetic element 24 and at least one wire loop 25.Wherein, pedestal 23 is to combine with the through hole 311 of barrel 31, makes light reflection element 20 be positioned at barrel 31.
The vibrating device 2 of this projection lens group 3 more comprises at least one flexible member 26.In the present embodiment, this light reflection element 20 is to be an eyeglass; Magnetic element 24 is to be a magnet; Flexible member 26 is to be a reed.
In the present embodiment, the modular construction of vibrating device 2, set-up mode and manner of execution are as previously mentioned, so do not repeat them here.
For the present invention is more readily understood, below see also shown in Figure 4ly, specify manner of execution according to the vibrating device 2 of preferred embodiment of the present invention.
As shown in Figure 4, at least one side of light reflection element 20 is that group is wound with wire loop 25, this wire loop 25 can 8 font work groups around mode, owing to magnetic element 24 on the pedestal 23 is and wire loop 25 relative establishing, when wire loop 25 passes to electric current with a direction, the two ends of wire loop 25 can produce different magnetic poles, by there is a natural attraction between the sexes and principle of same-sex repulsion, make light reflection element 20 toward first direction inclination (as the solid arrow of Fig. 4), otherwise, when wire loop 25 passes to electric current with other direction, the two ends of wire loop can change magnetic pole, and there is a natural attraction between the sexes and principle of same-sex repulsion in utilization similarly, make light reflection element 20 toward second directions inclinations (as the dotted arrow of Fig. 4), thus, form the mode of side-to-side vibrations.
In addition, the flexible member 26 (as shown in Figure 6) under holding element 21 can further provide a back stretch to give light reflection element 20 in the vibration.
Combine by above-mentioned, projection lens group and vibrating device thereof according to preferred embodiment of the present invention, be that magnetic field and the magnetic element that utilizes wire loop to produce interacts down, and optical element is vibrated, this vibrating device is used in the projection lens group, and when being applied in the optical projection system (for example DLP formula optical projection system), vibrating device makes catoptrical light path displacement by this, and has effectively improved the discontinuous phenomenon of picture that the movable lens gap of factor position micro mirror wafer (DMD) is caused in the optical projection system.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1. vibrating device that is used for the projection lens group is characterized in that it comprises:
One light reflection element;
One holding element, this light reflection element are arranged on this holding element;
One pedestal, surface thereof stand and are provided with at least one support component, and this support component is to support this holding element and this light reflection element;
At least one magnetic element, it is a side that is arranged on this pedestal and is adjacent to this light reflection element, this magnetic element has one first polarity and one second polarity; And
At least one wire loop, it is the side that relative this magnetic element group is around in this light reflection element, when this wire loop change direction of current, have one between this light reflection element and this magnetic element and inhale magnetic force and one magnetic force that repels each other mutually, so that this light reflection element vibrates.
2. the vibrating device that is used for the projection lens group according to claim 1 is characterized in that wherein said wire loop has a coil and a switch loop.
3. the vibrating device that is used for the projection lens group according to claim 1 it is characterized in that wherein said light reflection element is to be an eyeglass, and this magnetic element is to be a magnet.
4. the vibrating device that is used for the projection lens group according to claim 1 is characterized in that it more comprises at least one flexible member, and it is arranged under this holding element.
5. the vibrating device that is used for the projection lens group according to claim 1, the vibration frequency that it is characterized in that wherein said light reflection element are to be 60 hertz.
6. projection lens group is characterized in that it comprises:
One barrel, it has a through hole; And
One vibrating device, it comprises a light reflection element, one holding element, one pedestal, at least one magnetic element and at least one wire loop, this light reflection element is arranged on this holding element, this pedestal one surface is stood and is provided with at least one support component, this support component is to support this holding element and this light reflection element, this magnetic element is a side that is arranged on this pedestal and is adjacent to this light reflection element, this magnetic element has one first polarity and one second polarity, this wire loop is the side that relative this magnetic element group is around in this light reflection element, when this wire loop change direction of current, have one between this light reflection element and this magnetic element and inhale magnetic force and one magnetic force that repels each other mutually, so that this light reflection element vibration, wherein, this pedestal is to combine with this through hole, makes this light reflection element be positioned at this barrel.
7. projection lens group according to claim 6 is characterized in that wherein said wire loop is to have a coil and a switch loop.
8. projection lens group according to claim 6 it is characterized in that wherein said light reflection element is to be an eyeglass, and this magnetic element is to be a magnet.
9. projection lens group according to claim 6 is characterized in that it more comprises at least one flexible member, and it is arranged under this holding element.
10. projection lens group according to claim 6, the vibration frequency that it is characterized in that wherein said light reflection element are to be 60 hertz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101034586A CN100397239C (en) | 2004-12-28 | 2004-12-28 | Projecting lens set and vibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101034586A CN100397239C (en) | 2004-12-28 | 2004-12-28 | Projecting lens set and vibration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1797179A CN1797179A (en) | 2006-07-05 |
| CN100397239C true CN100397239C (en) | 2008-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101034586A Expired - Fee Related CN100397239C (en) | 2004-12-28 | 2004-12-28 | Projecting lens set and vibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100397239C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206489309U (en) * | 2016-09-30 | 2017-09-12 | 扬明光学股份有限公司 | Light path adjusting mechanism |
| WO2020228595A1 (en) * | 2019-05-14 | 2020-11-19 | 青岛海信激光显示股份有限公司 | Projection lens and laser projection device |
| CN111948886A (en) * | 2019-05-14 | 2020-11-17 | 青岛海信激光显示股份有限公司 | Projection imaging device |
| CN111230023B (en) * | 2020-02-11 | 2021-05-11 | 唐山曹妃甸区勃特工程机械有限公司 | Closed forging forming die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295863A2 (en) * | 1987-06-15 | 1988-12-21 | Sharp Kabushiki Kaisha | Optical printer of scanning type |
| JP2001117044A (en) * | 1999-10-21 | 2001-04-27 | Yasaka:Kk | Galvano mirror |
| JP2003262920A (en) * | 2002-03-07 | 2003-09-19 | Seiko Epson Corp | Back projection display device |
-
2004
- 2004-12-28 CN CNB2004101034586A patent/CN100397239C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295863A2 (en) * | 1987-06-15 | 1988-12-21 | Sharp Kabushiki Kaisha | Optical printer of scanning type |
| JP2001117044A (en) * | 1999-10-21 | 2001-04-27 | Yasaka:Kk | Galvano mirror |
| JP2003262920A (en) * | 2002-03-07 | 2003-09-19 | Seiko Epson Corp | Back projection display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1797179A (en) | 2006-07-05 |
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