CN104820332A - Color wheel switching structure and projection system with color wheel switching structure - Google Patents

Color wheel switching structure and projection system with color wheel switching structure Download PDF

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Publication number
CN104820332A
CN104820332A CN201510111770.8A CN201510111770A CN104820332A CN 104820332 A CN104820332 A CN 104820332A CN 201510111770 A CN201510111770 A CN 201510111770A CN 104820332 A CN104820332 A CN 104820332A
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CN
China
Prior art keywords
mobile base
colour wheel
rod member
hole
operating portion
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Granted
Application number
CN201510111770.8A
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Chinese (zh)
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CN104820332B (en
Inventor
萧启宏
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Qisda Optronics Suzhou Co Ltd
Qisda Corp
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Qisda Optronics Suzhou Co Ltd
Qisda Corp
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Priority to CN201510111770.8A priority Critical patent/CN104820332B/en
Publication of CN104820332A publication Critical patent/CN104820332A/en
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Publication of CN104820332B publication Critical patent/CN104820332B/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

The invention provides a color wheel switching structure and a projection system with the color wheel switching structure. In the color wheel switching structure, a base is provided with a moving seat and a color wheel capable of rotating on the moving seat. The moving seat and the color wheel are pushed by an operation part in a mode of mechanical operation, thus the moving seat and the color wheel can move between a first position and a second position relative to the base. When the moving seat and the color wheel move to the first position, one color ring on the color wheel is on the light path between the light source and the light guide tube of the projection system. When the moving seat and the color wheel move to the second position, the other color ring on the color wheel is on the light path between the light source and the light guide tube of the projection system. The moving seat and the color wheel are maintained at the first position or the second position through a clamping structure and the operation part. The color wheel switching structure is operated in a simple mode such that the protection system has different color wheel configurations.

Description

Colour wheel switching construction and there is the optical projection system of colour wheel switching construction
Technical field
The present invention about a kind of optical projection system, espespecially a kind of optical projection system with colour wheel switching construction.
Background technology
Numerical digit light process (digital light processor, DLP) optical projection system uses DMD Digital Micromirror Device (digitalmicromirror device, DMD) reflection ray and produces projection image.Light is sent by the light source of high strength, after photoconductive tube and multiple lens group, then to be tilted different angle and light is reflexed to projection lens with specific pattern by the multiple micro-mirror structure in DMD.
And in such optical projection system, want imaging to go out colored pattern, then need to make light be passed to DMD again after a colour wheel (color wheel) rotated and reflect away.Generally speaking, colour wheel contains the three primary colors of light, i.e. red (R), green (G) and blue (B), and the velocity of rotation of colour wheel is synchronous with the turnover rate of picture, sequentially to provide the redness of each picture, green and blue frame, then DMD also coordinates the brightness of each color needed for different pixels position in synchronous angle of inclination, the frame of these three kinds of colors last sequentially casts out, and each sprite is then mixed the projected picture combined into colour by eye-observation and brain process.
Generally speaking, the three primary colors that the colour wheel of standard comprises are evenly distributed in circumference and colour wheel is divided into trisection.Such benefit is that the color saturation of optical projection system imaging is high, is suitable as domestic play chief minister and uses.But the brightness of image of the optical projection system of this type is also relatively low.In order to improve the brightness of optical projection system, another kind of wheel design, except original three primary colors, adds a 4th transparent block in addition, makes three primary colors and transparent block that colour wheel is divided into the quartern.Because transparent block allows more light to pass through, such colour wheel can provide more bright image, but because pure white light add the color that membership " waters down " other, saturation degree is not as a kind of optical projection system of colour wheel before adopting, and therefore this kind of optical projection system is used for bulletin and commercial use.
The various domains that although the design because of colour wheel makes optical projection system have it to be suitable for, modern optical projection system is pursued better use elasticity and must both take into account.Design common at present uses switchable colour wheel structure in projection systems, and when optical projection system makes the image mode that family's theater maybe will provide color saturation higher, inner colour wheel structure switches to the colour wheel that three primary colors are divided equally; When optical projection system do business or bulletin pattern use time, inner colour wheel structure then switches to the colour wheel that " four looks " that comprise transparent block is divided equally.But the colour wheel switching construction of this type all adopts electronically controlled mode at present, make the organizational system cost of optical projection system relatively high, and Electronic Control also adds additional the consumption of electric power and improve Parts Breakdown rate.
Summary of the invention
The object of the present invention is to provide a kind of easy operation and the high colour wheel switching construction of fiduciary level and optical projection system.
For achieving the above object, the invention provides a kind of colour wheel switching construction, be arranged in the light path between the light source of optical projection system and photoconductive tube, this light source provides light to this photoconductive tube along this light path.This colour wheel switching construction includes pedestal, Mobile base, colour wheel and operating portion.This pedestal is arranged in this light path.This Mobile base is arranged on this pedestal, and this Mobile base can move along switching shaft relative to this pedestal between primary importance and the second place.This colour wheel to be articulated on this Mobile base and can to rotate relative to this Mobile base, and this colour wheel has interior colour circle and outer colour circle, between the axle center that this interior colour circle is configured at this colour wheel and this outer colour circle.This operating portion is connected to this Mobile base, and this operating portion is used for being pushed along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel.When this Mobile base is driven and moves to this primary importance, this outer colour circle of this colour wheel is positioned in this light path, and this light passes this outer colour circle to be supplied to this photoconductive tube; When this Mobile base is driven and moves to this second place, this interior colour circle of this colour wheel is positioned in this light path, and this light passes this interior colour circle to be supplied to this photoconductive tube.
Preferably, this pedestal moves to this second position and has pushing and pressing door bolt in this Mobile base along this switching shaft, this Mobile base has buckling parts to the position that should push against door bolt, when this Mobile base is moved to this second place by the drive of this operating portion, these pushing and pressing door bolt engages with this buckling parts, and this Mobile base is maintained at this second place.
Preferably, this pedestal has recreation room, and this recreation room has the first hole and the second hole, and this operating portion to be arranged in this recreation room and to extend to form handle outside this first hole, and extends outside this second hole to connect this Mobile base.
Preferably, this operating portion has only to dish, only should support the aperture that the diameter coiled is greater than this first hole and this second hole, when this Mobile base moves along this switching shaft, only should support dish and only support the wall that this recreation room defines this first hole, so that this Mobile base is maintained at this primary importance.
Preferably, this colour wheel switching construction also comprises elastic component, be placed on this operating portion and two ends and abut this only defines this second hole wall to dish and this recreation room respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this elastic component is only supported dish by this and this recreation room defines the wall compression in this second hole and has elastic-restoring force.
Preferably, this operating portion comprises the first rod member and the second rod member, this first rod member extends outside this first hole to form this handle, this second rod member extends outside this second hole to be connected and fixed on this Mobile base, this first rod member promotes this second rod member along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel.
Preferably, this first rod member has only to dish, the diameter that only should support dish is greater than this first hole, this operating portion also comprises the first elastic component, be placed on this first rod member and two ends and abut this first rod member and this second rod member respectively, this first elastic component is used for promoting this first rod member, makes this only support dish and only supports the wall that this recreation room defines this first hole.
Preferably, also comprise fastener, can move along perpendicular to this switching shaft direction relative to this recreation room, when this Mobile base is moved to this second place by the drive of this operating portion, this fastener is sticked in this second rod member, and this Mobile base is maintained at this second place.
Preferably, this fastener has the first arm and the second arm that arrange along this switching shaft direction, this second rod member has the buckle slot corresponding to this second arm, when this Mobile base is moved to this second place by the drive of this operating portion, this second arm is sticked in this buckle slot so that this Mobile base is maintained at this second place.
Preferably, this first rod member has the first inclined-plane, and corresponding to the position of this first arm, when this first rod member moves along this switching shaft, this first arm of this first slope driving, to depart from this buckle slot with this second arm of interlock and engage.
Preferably, this operating portion also comprises the second elastic component, be placed on this second rod member and two ends abut the wall that this second rod member and this recreation room define this second hole respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this second elastic component is defined the wall compression in this second hole by this second rod member and this recreation room and has elastic-restoring force.
Preferably, when this first rod member moves along this switching shaft, this first arm of this first slope driving with this second arm of interlock and this buckle slot depart from engage time, this second rod member of this second resilient element urges moves and makes this second rod member only be butted on stopping to projection in this recreation room, and this Mobile base is maintained at this primary importance.
Preferably, this second rod member has the second inclined-plane, corresponding to the position of this second arm, when this Mobile base is moved to this second place by the drive of this operating portion from this primary importance, and this second arm of this second slope driving.
Preferably, this colour wheel switching construction also comprises the 3rd elastic component, be placed on this fastener and two ends and abut this fastener and this pedestal respectively, when this first arm of this first slope driving or this this second arm of the second slope driving, the 3rd elastic component is had elastic-restoring force by this fastener and the compression of this pedestal.
Preferably, this pedestal has track, and this track extends along this switching shaft direction, and this Mobile base has sliding part, and this sliding part is arranged on this track, and this Mobile base is slided along this switching shaft on this track by this sliding part.
Preferably, this sliding part comprises Spring screws and protuberance, and this Spring screws is through this track with this protuberance that locks, and this Spring screws provides pulling force to make to have friction force between this protuberance and this pedestal.
For achieving the above object, the present invention separately provides a kind of optical projection system with colour wheel switching construction, includes light source, photoconductive tube and colour wheel switching construction.Form light path between this light source and this photoconductive tube, this light source provides light to this photoconductive tube along this light path.This colour wheel switching construction includes pedestal, Mobile base, colour wheel and operating portion.This pedestal is arranged in this light path.This Mobile base is arranged on this pedestal, and this Mobile base can move along switching shaft relative to this pedestal between primary importance and the second place.This colour wheel to be articulated on this Mobile base and can to rotate relative to this Mobile base, and this colour wheel has interior colour circle and outer colour circle, between the axle center that this interior colour circle is configured at this colour wheel and this outer colour circle.This operating portion is connected to this Mobile base, and this operating portion is used for being pushed along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel.When this Mobile base is driven and moves to this primary importance, this outer colour circle of this colour wheel is positioned in this light path, and this light passes this outer colour circle to be supplied to this photoconductive tube; When this Mobile base is driven and moves to this second place, this interior colour circle of this colour wheel is positioned in this light path, and this light passes this interior colour circle to be supplied to this photoconductive tube.
Preferably, this pedestal moves to this second position and has pushing and pressing door bolt in this Mobile base along this switching shaft, this Mobile base has buckling parts to the position that should push against door bolt, when this Mobile base is moved to this second place by the drive of this operating portion, these pushing and pressing door bolt engages with this buckling parts, and this Mobile base is maintained at this second place.
Preferably, this pedestal has recreation room, and this recreation room has the first hole and the second hole, and this operating portion to be arranged in this recreation room and to extend to form handle outside this first hole, and extends outside this second hole to connect this Mobile base.
Preferably, this operating portion has only to dish, only should support the aperture that the diameter coiled is greater than this first hole and this second hole, when this Mobile base moves along this switching shaft, only should support dish and only support the wall that this recreation room defines this first hole, so that this Mobile base is maintained at this primary importance.
Preferably, this colour wheel switching construction also comprises elastic component, be placed on this operating portion and two ends and abut this only defines this second hole wall to dish and this recreation room respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this elastic component is only supported dish by this and this recreation room defines the wall compression in this second hole and has elastic-restoring force.
Preferably, this operating portion comprises the first rod member and the second rod member, this first rod member extends outside this first hole to form this handle, this second rod member extends outside this second hole to be connected and fixed on this Mobile base, this first rod member promotes this second rod member along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel.
Preferably, this first rod member has only to dish, the diameter that only should support dish is greater than this first hole, this operating portion also comprises the first elastic component, be placed on this first rod member and two ends and abut this first rod member and this second rod member respectively, this first elastic component is used for promoting this first rod member, makes this only support dish and only supports the wall that this recreation room defines this first hole.
Preferably, this colour wheel switching construction also comprises fastener, can move along perpendicular to this switching shaft direction relative to this recreation room, when this Mobile base is moved to this second place by the drive of this operating portion, this fastener is sticked in this second rod member, and this Mobile base is maintained at this second place.
Preferably, this fastener has the first arm and the second arm that arrange along this switching shaft direction, this second rod member has the buckle slot corresponding to this second arm, when this Mobile base is moved to this second place by the drive of this operating portion, this second arm is sticked in this buckle slot so that this Mobile base is maintained at this second place.
Preferably, this first rod member has the first inclined-plane, and corresponding to the position of this first arm, when this first rod member moves along this switching shaft, this first arm of this first slope driving, to depart from this buckle slot with this second arm of interlock and engage.
Preferably, this operating portion also comprises the second elastic component, be placed on this second rod member and two ends abut the wall that this second rod member and this recreation room define this second hole respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this second elastic component is defined the wall compression in this second hole by this second rod member and this recreation room and has elastic-restoring force.
Preferably, when this first rod member moves along this switching shaft, this first arm of this first slope driving with this second arm of interlock and this buckle slot depart from engage time, this second rod member of this second resilient element urges moves and makes this second rod member only be butted on stopping to projection in this recreation room, and this Mobile base is maintained at this primary importance.
Preferably, this second rod member has the second inclined-plane, corresponding to the position of this second arm, when this Mobile base is moved to this second place by the drive of this operating portion from this primary importance, and this second arm of this second slope driving.
Preferably, this colour wheel switching construction also comprises the 3rd elastic component, be placed on this fastener and two ends and abut this fastener and this pedestal respectively, when this first arm of this first slope driving or this this second arm of the second slope driving, the 3rd elastic component is had elastic-restoring force by this fastener and the compression of this pedestal.
Preferably, this pedestal has track, and this track extends along this switching shaft direction, and this Mobile base has sliding part, and this sliding part is arranged on this track, and this Mobile base is slided along this switching shaft on this track by this sliding part.
Preferably, this sliding part comprises Spring screws and protuberance, and this Spring screws is through this track with this protuberance that locks, and this Spring screws provides pulling force to make to have friction force between this protuberance and this pedestal.
Preferably, this switching shaft is perpendiculared to one another with this light path.
The physical construction that the present invention utilizes fiduciary level high, operates colour wheel switching construction in a straightforward manner, makes optical projection system have different colour wheel configurations.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the element of the inner local of optical projection system.
Fig. 2 and Fig. 3 is the schematic diagram of different angles after each components broken down blast of colour wheel switching construction one first embodiment.
Fig. 4 is the schematic diagram that colour wheel is arranged at a primary importance by colour wheel switching construction.
Fig. 5 is the schematic diagram that colour wheel is arranged at a second place by colour wheel switching construction.
Fig. 6 to Fig. 9 is the schematic diagram that colour wheel switching construction one second embodiment is arranged at diverse location.
Embodiment
Some vocabulary is employed to censure specific element in the middle of instructions and follow-up claim.Person with usual knowledge in their respective areas should understand, and same element may be called by manufacturer with different nouns.This instructions and follow-up claim are not used as the mode of distinguish one element from another with the difference of title, but are used as the criterion of differentiation in function and structural difference with element." comprising " mentioned in the middle of instructions and follow-up claim is in the whole text open term, therefore should be construed to " comprise but be not limited to ".In addition, " couple " or " connection " one word in this case comprise directly any and indirectly electrically or anatomical connectivity means.Therefore, if describe first device in literary composition to couple/be connected to the second device, then represent this first device can directly electrically/anatomical connectivity in this second device, by other devices or connect means indirectly electrically/anatomical connectivity to this second device.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the element of the inner local of optical projection system.Optical projection system 1 contains light source 10, photoconductive tube 20, colour wheel switching construction 30.Light path R is formed between light source 10 and photoconductive tube 20 1, light source 10 is along light path R 1there is provided light to photoconductive tube 20.Colour wheel switching construction 30 is arranged between light source 10 and photoconductive tube 20.More particularly, the light path R of colour wheel switching construction 30 between light source 10 and photoconductive tube 20 1on, this light that light source 10 provides is along light path R 1through colour wheel switching construction 30, light changed into ruddiness, green glow, blue light by the colour wheel rotated in colour wheel switching construction 30 or do not change, then after being passed to photoconductive tube 20, through the lens combination of optical projection system 1 amplify light and change light path, brightness that the synchronous angle of inclination of DMD Digital Micromirror Device coordinates each color needed for different pixels position forms frame, the frame of last three kinds of colors is sequentially gone out via projection lens projects.Wherein this lens combination of optical projection system 1, this DMD Digital Micromirror Device, this projection lens and other necessary elements are not drawn in FIG.
Please refer to Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 is the schematic diagram of different angles after each components broken down blast of colour wheel switching construction 30 one the first embodiment.Colour wheel switching construction 30 comprises pedestal 31, Mobile base 32, colour wheel 33, operating portion 34 and elastic component 35.Pedestal 31 is arranged at light path R 1on, more particularly, pedestal 31 has opening 316, light path R 1then through opening 316.Mobile base 32 is arranged on pedestal 31, and can along a switching shaft R 2(with reference to figure 1) opposite base 31 moves, in an embodiment of the present invention, and switching shaft R 2with light path R 1perpendicular to one another.Colour wheel 33 pivot joints are arranged on Mobile base 32 and can rotate on Mobile base 32, and also because Mobile base 32 can move by opposite base 31, therefore colour wheel 33 also can move by opposite base 31 along with Mobile base 32.Operating portion 34 is connected to Mobile base 32, is used for along switching shaft R 2be pushed and drive Mobile base 32 and colour wheel 33 opposite base 31 to move.In one embodiment of this invention, operating portion 34 has leader 341, what adopt in optical projection system 1 of the present invention is the colour wheel switching construction 30 of mechanical operation, and by the handle 341 of operation operating portion 34, the colour circle moved forward in circumstances in which people get things ready for a trip wheel 33 to promote Mobile base 32 and colour wheel 33 switches.
Pedestal 31 has a track 315, and in the embodiment of Fig. 2 and Fig. 3, track 315 is multiple with switching shaft R 2equidirectional (along switching shaft R 2direction extend) strip perforate.Mobile base 32 has a sliding part 321, and sliding part 321 is equipped with on track 315 with the track 315 of pedestal 31, makes Mobile base 32 can along switching shaft R on track 315 by sliding part 321 2mobile.More specifically, sliding part 321 contains at least one protuberance 322 and a Spring screws 323, in the embodiment of Fig. 2 and Fig. 3, then multiple strip perforates of matching track 315, and there is multiple protuberances 322 and multiple Spring screws 323 (the present invention other embodiment also can have the sliding part of different aspect and the matching structure of track).Spring screws 323 passes the corresponding strip perforate of track 315 and is locked on corresponding protuberance 322, and provides a pulling force to make to have friction force between protuberance 322 and pedestal 31.
Please continue to refer to Fig. 2.Pedestal 31 separately has a recreation room 312, recreation room 312 has the first hole 313 and the second hole 314, the operating portion 34 being connected to Mobile base 32 is arranged in recreation room 312 and to extend the first hole 313 outer to form handle 341, and operating portion 34 other end extends the second hole 314 and is connected to Mobile base 32 outward.The operating portion 34 being positioned at recreation room 312 has one and only supports dish 342, and its diameter is greater than the aperture in the first hole 313 and the second hole 314, therefore when Mobile base 32 is along switching shaft R 2time mobile, only support dish 342 movement and can the shift motion of moving-limiting seat 32 in recreation room 312 in.Elastic component 35 (being spring in the present embodiment) is placed on operating portion 34 and two ends and is connected to the wall only defining the second hole 314 to dish 342 and recreation room 312 respectively.
Please refer to Fig. 4 and Fig. 5, wherein Fig. 4 is the schematic diagram that colour wheel is arranged at a primary importance by colour wheel switching construction, and Fig. 5 is the schematic diagram that colour wheel is arranged at a second place by colour wheel switching construction, and its visual angle is the light path R along Fig. 1 1direction.The Mobile base 32 of colour wheel switching construction 30 of the present invention and colour wheel 33 operated unit 34 can to drive and along switching shaft R on pedestal 31 2move between this primary importance of Fig. 4 and this second place of Fig. 5.Colour wheel 33 has colour circle 331 and an outer colour circle 332 in one, wherein between interior colour circle 331 axle center that is configured at colour wheel 33 and outer colour circle 332, namely outer colour circle 332 is positioned at the opposing outer circumferential on colour wheel 33, and interior colour circle 331 is positioned at the relative inner periphery on colour wheel 33.Interior colour circle 331 and outer colour circle 332 have different color block arrangement, such as in one embodiment, interior colour circle 331 contains red, blue, the green tint block of trisection, be applicable to the occasion of image and theater broadcasting, and outer colour circle 332 contains red, blue, the green tint block of the quartern and transparent block, be applicable to the higher bulletin of brightness or commercial use occasion, but the present invention is not as limit, the configuration of colour circle also can be exchanged with above-described embodiment, or adopts another kind of colour circle to configure.
As shown in Figure 4, when Mobile base 32 and colour wheel 33 are driven and move to this primary importance, the outer colour circle 332 of colour wheel 33 is positioned at light path R 1on (with reference to figure 1), this light now sent by light source 10 passes the opening 316 of outer colour circle 332 and pedestal 31 to be supplied to photoconductive tube 20, and the configuration of outer colour circle 332 makes optical projection system 1 be arranged at applicable bulletin or commercial use.Pedestal 31 moves to this second position in Mobile base 32 and has a pushing and pressing door bolt 311, and the position of Mobile base 32 correspondence pushing and pressing door bolt 311 has a buckling parts 324, when the handle 341 of operation operating portion 34 is along switching shaft R 2after promoting Mobile base 32 and colour wheel 33 to this second place as shown in Figure 5, buckling parts 324 engages with pushing and pressing door bolt 311, so that Mobile base 32 and colour wheel 33 are maintained at this second place.Now the interior colour circle 331 of colour wheel 33 is positioned at light path R 1on (with reference to figure 1), this light sent by light source 10 passes the opening 316 (Fig. 5 is covered by colour wheel 33 and do not show) of interior colour circle 331 and pedestal 31 to be supplied to photoconductive tube 20, and the configuration of interior colour circle 331 makes optical projection system 1 be arranged at the purposes of applicable image and theater broadcasting.
Special instruction, when Mobile base 32 and colour wheel 33 operated unit 34 drive and move to this second place of Fig. 5, elastic component 35 can only be supported dish 342 and recreation room 312 define the wall in the second hole 314 compress and there is elastic-restoring force.When again being promoted after Mobile base 32 makes buckling parts 324 and pushing and pressing door bolt 311 engagement release by handle 341, then driven by the elastic-restoring force of the elastic component 35 compressed and be only moved to the left in figure to dish 342 (related drive Mobile base 32 and colour wheel 33), until only support dish 342 only support the wall that recreation room 312 defines the first hole 313, Mobile base 32 and colour wheel 33 to be maintained at this primary importance of Fig. 4.
Please refer to Fig. 6 to Fig. 9, it is the schematic diagram that colour wheel switching construction one second embodiment is arranged at diverse location, wherein Fig. 6 is the second embodiment of colour wheel switching construction schematic diagram when colour wheel being arranged at a primary importance, and Fig. 8 is the second embodiment of colour wheel switching construction schematic diagram when colour wheel being arranged at a second place.As shown in Figure 6, in a second embodiment, the operating portion of colour wheel switching construction 30 ' comprises one first rod member 36 and one second rod member 37, and colour wheel switching construction 30 ' separately comprises a fastener 40.The first hole 313 that first rod member 36 extends recreation room 312 is outer to form handle 341, and it is outer to be connected and fixed on Mobile base 32 (figure does not show) that the second rod member 37 extends the second hole 314.First rod member 36 is linked in the second rod member 37, and can along switching shaft R 2promote the second rod member 37, move between this primary importance and this second place to drive Mobile base 32 and colour wheel 33 (diagram with reference to previous embodiment).
First rod member 36 has one and only supports dish 342, and the diameter only supporting dish 342 is greater than the first hole 313.Operating portion also comprises one first elastic component 351 and one second elastic component 352, first elastic component 351 and is placed on the first rod member 36 and two ends and abuts the first rod member 36 and the second rod member 37 respectively.Second elastic component 352 is placed on the second rod member 37 and two ends abut the wall that the second rod member 37 and recreation room 312 define the second hole 314 respectively.Colour wheel switching construction 30 ' also comprises one the 3rd elastic component 353, is placed on fastener 40 and two ends and abuts fastener 40 and pedestal 31 respectively.As shown in the figure, fastener 40 has along switching shaft R 2one first arm 41 and one second arm 42 of direction arrangement.First rod member 36, one first inclined-plane 361, second rod member 37 separately had corresponding to the first arm 41 position separately has corresponding to the second inclined-plane 372 of the second arm 42 position and the buckle slot 371 that is engaged with the second arm 42.
In the position shown in Fig. 6, the first rod member 36 can make it only support dish 342 by the promotion of the first elastic component 351 and only be butted on the wall that recreation room 312 defines the first hole 313 left.And in other embodiments, the first elastic component 351 also can not be set in addition, and in a manual manner pull handle 341 first rod member 36 is pulled out to end support dish 342 be only butted on the wall that recreation room 312 defines the first hole 313 left.Second rod member 37 promotes mobile by the second elastic component 352, and is only butted on one in recreation room 312 left only to projection 317, so that Mobile base 32 is maintained at this primary importance.
Fastener 40 can along perpendicular to switching shaft R 2direction (above-below direction namely in diagram) relative motion room 312 is moved.Moved in the process of this second place from this primary importance, as shown in Figure 7, along switching shaft R at Mobile base 32 by the drive of this operating portion 2direction promotes handle 341, make the first rod member 36 promote the second rod member 37 by the first elastic component 351 and (or the first elastic component 351 is not set, and directly promote the second rod member 37 by the first rod member 36), until the second arm 42 of the second inclined-plane 372 push card fastener 40 of the second rod member 37 and drive fastener 40 to move down, now the 3rd elastic component 353 is compressed by fastener 40 and pedestal 31 and has elastic-restoring force, and the second rod member 37 can continue along switching shaft R 2direction is pushed to the right, until as the position of Fig. 8.
In the position shown in Fig. 8, second rod member 37 of Mobile base 32 operated unit drives to this second place, fastener 40 can be driven to move up by the 3rd elastic component 353 compressed, make the second arm 42 of fastener 40 be sticked in the buckle slot 371 of the second rod member 37, thus Mobile base 32 is maintained at this second place.Now the second elastic component 352 is defined the wall compression in the second hole 314 by the second rod member 37 and recreation room 312 and has elastic-restoring force.
Under the state of Fig. 8, continue along switching shaft R 2when direction promotes handle 341 to the right, until the first inclined-plane 361 of the first rod member 36 promotes the first arm 41 (as shown in Figure 9) and drives fastener 40 to move down, can depart from buckle slot 371 and engage by interlock second arm 42.Now by the second elastic component 352 of compressing along switching shaft R 2direction promotes the second rod member 37 left and moves, until the second rod member 37 is only butted on stopping in recreation room 312 support projection 317, Mobile base 32 can be maintained at this primary importance.
Provide a kind of optical projection system in embodiments of the invention, it has the colour wheel switching construction of changeable colour circle configuration.In colour wheel switching construction, colour wheel Mobile base being set on pedestal and can rotating on Mobile base.Promote Mobile base and colour wheel by operating portion in mechanically operated mode, Mobile base and colour wheel can be moved by opposite base between a primary importance and a second place.When Mobile base and colour wheel move to this primary importance, a wherein colour circle on colour wheel is in the light path between the light source and photoconductive tube of optical projection system, when Mobile base and colour wheel move to this second place, another colour circle on colour wheel is in the light path between the light source and photoconductive tube of optical projection system.Mobile base and colour wheel are then maintained at this primary importance or this second place by the structure of snap-in structure and operating portion.Utilize the physical construction that fiduciary level is high, operate colour wheel switching construction in a straightforward manner, make optical projection system have different colour wheel configurations.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.

Claims (24)

1. a colour wheel switching construction, be arranged in the light path between the light source of optical projection system and photoconductive tube, this light source provides light to this photoconductive tube along this light path, it is characterized in that, this colour wheel switching construction includes:
Pedestal, is arranged in this light path;
Mobile base, is arranged on this pedestal, and this Mobile base can move along switching shaft relative to this pedestal between primary importance and the second place;
Colour wheel, being articulated on this Mobile base and can rotating relative to this Mobile base, this colour wheel has interior colour circle and outer colour circle, between the axle center that this interior colour circle is configured at this colour wheel and this outer colour circle; And
Operating portion, is connected to this Mobile base, promotes this operating portion along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel;
Wherein when this Mobile base is driven and moves to this primary importance, this outer colour circle of this colour wheel is positioned in this light path, and this light passes this outer colour circle to be supplied to this photoconductive tube; When this Mobile base is driven and moves to this second place, this interior colour circle of this colour wheel is positioned in this light path, and this light passes this interior colour circle to be supplied to this photoconductive tube.
2. colour wheel switching construction as claimed in claim 1, it is characterized in that, this pedestal moves to this second position and has pushing and pressing door bolt in this Mobile base along this switching shaft, this Mobile base has buckling parts to the position that should push against door bolt, when this Mobile base is moved to this second place by the drive of this operating portion, these pushing and pressing door bolt engages with this buckling parts, and this Mobile base is maintained at this second place.
3. colour wheel switching construction as claimed in claim 1, it is characterized in that, this pedestal has recreation room, and this recreation room has the first hole and the second hole, this operating portion to be arranged in this recreation room and to extend to form handle outside this first hole, and extends outside this second hole to connect this Mobile base.
4. colour wheel switching construction as claimed in claim 3, it is characterized in that, this operating portion has only to dish, the diameter that only should support dish is greater than the aperture in this first hole and this second hole, when this Mobile base moves along this switching shaft, only should support dish and only support the wall that this recreation room defines this first hole, so that this Mobile base is maintained at this primary importance.
5. colour wheel switching construction as claimed in claim 3, it is characterized in that, also comprise elastic component, be placed on this operating portion and two ends and abut this only defines this second hole wall to dish and this recreation room respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this elastic component is only supported dish by this and this recreation room defines the wall compression in this second hole and has elastic-restoring force.
6. colour wheel switching construction as claimed in claim 3, it is characterized in that, this operating portion comprises the first rod member and the second rod member, this first rod member extends outside this first hole to form this handle, this second rod member extends outside this second hole to be connected and fixed on this Mobile base, this first rod member promotes this second rod member along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel.
7. colour wheel switching construction as claimed in claim 6, it is characterized in that, this first rod member has only to dish, the diameter that only should support dish is greater than this first hole, this operating portion also comprises the first elastic component, be placed on this first rod member and two ends and abut this first rod member and this second rod member respectively, this first elastic component is used for promoting this first rod member, makes this only support dish and only supports the wall that this recreation room defines this first hole.
8. colour wheel switching construction as claimed in claim 6, it is characterized in that, also comprise fastener, can move along perpendicular to this switching shaft direction relative to this recreation room, when this Mobile base is moved to this second place by the drive of this operating portion, this fastener is sticked in this second rod member, and this Mobile base is maintained at this second place.
9. colour wheel switching construction as claimed in claim 7, it is characterized in that, this fastener has the first arm and the second arm that arrange along this switching shaft direction, this second rod member has the buckle slot corresponding to this second arm, when this Mobile base is moved to this second place by the drive of this operating portion, this second arm is sticked in this buckle slot so that this Mobile base is maintained at this second place.
10. colour wheel switching construction as claimed in claim 9, it is characterized in that, this first rod member has the first inclined-plane, corresponding to the position of this first arm, when this first rod member moves along this switching shaft, this first arm of this first slope driving, to depart from this buckle slot with this second arm of interlock and engages.
11. colour wheel switching constructions as claimed in claim 10, it is characterized in that, this operating portion also comprises the second elastic component, be placed on this second rod member and two ends abut the wall that this second rod member and this recreation room define this second hole respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this second elastic component is defined the wall compression in this second hole by this second rod member and this recreation room and has elastic-restoring force.
12. colour wheel switching constructions as claimed in claim 11, it is characterized in that, when this first rod member moves along this switching shaft, this first arm of this first slope driving with this second arm of interlock and this buckle slot depart from engage time, this second rod member of this second resilient element urges moves and makes this second rod member only be butted on stopping to projection in this recreation room, and this Mobile base is maintained at this primary importance.
13. colour wheel switching constructions as claimed in claim 9, it is characterized in that, this second rod member has the second inclined-plane, corresponding to the position of this second arm, when this Mobile base is moved to this second place by the drive of this operating portion from this primary importance, this second arm of this second slope driving.
14. colour wheel switching constructions as claimed in claim 13, it is characterized in that, also comprise the 3rd elastic component, be placed on this fastener and two ends and abut this fastener and this pedestal respectively, when this first arm of this first slope driving or this this second arm of the second slope driving, the 3rd elastic component is had elastic-restoring force by this fastener and the compression of this pedestal.
15. colour wheel switching constructions as claimed in claim 1, it is characterized in that, this pedestal has track, this track extends along this switching shaft direction, this Mobile base has sliding part, and this sliding part is arranged on this track, and this Mobile base is slided along this switching shaft on this track by this sliding part.
16. colour wheel switching constructions as claimed in claim 15, it is characterized in that, this sliding part comprises Spring screws and protuberance, and this Spring screws is through this track with this protuberance that locks, and this Spring screws provides pulling force to make to have friction force between this protuberance and this pedestal.
17. 1 kinds of optical projection systems with colour wheel switching construction, is characterized in that, include:
Light source;
Photoconductive tube, forms light path between this light source and this photoconductive tube, and this light source provides light to this photoconductive tube along this light path; And
Colour wheel switching construction, includes:
Pedestal, is arranged in this light path;
Mobile base, is arranged on this pedestal, and this Mobile base can move along switching shaft relative to this pedestal between primary importance and the second place;
Colour wheel, being articulated on this Mobile base and can rotating relative to this Mobile base, this colour wheel has interior colour circle and outer colour circle, between the axle center that this interior colour circle is configured at this colour wheel and this outer colour circle; And
Operating portion, is connected to this Mobile base, and this operating portion is used for being pushed along this switching shaft, moves between this primary importance and this second place to drive this Mobile base and this colour wheel;
Wherein when this Mobile base is driven and moves to this primary importance, this outer colour circle of this colour wheel is positioned in this light path, and this light passes this outer colour circle to be supplied to this photoconductive tube; When this Mobile base is driven and moves to this second place, this interior colour circle of this colour wheel is positioned in this light path, and this light passes this interior colour circle to be supplied to this photoconductive tube.
18. optical projection systems as claimed in claim 17, it is characterized in that, this pedestal moves to this second position and has pushing and pressing door bolt in this Mobile base along this switching shaft, this Mobile base has buckling parts to the position that should push against door bolt, when this Mobile base is moved to this second place by the drive of this operating portion, these pushing and pressing door bolt engages with this buckling parts, and this Mobile base is maintained at this second place.
19. optical projection systems as claimed in claim 17, it is characterized in that, this pedestal has recreation room, and this recreation room has the first hole and the second hole, this operating portion to be arranged in this recreation room and to extend to form handle outside this first hole, and extends outside this second hole to connect this Mobile base.
20. optical projection systems as claimed in claim 19, it is characterized in that, this operating portion has only to dish, the diameter that only should support dish is greater than the aperture in this first hole and this second hole, when this Mobile base moves along this switching shaft, only should support dish and only support the wall that this recreation room defines this first hole, so that this Mobile base is maintained at this primary importance.
21. optical projection systems as claimed in claim 19, it is characterized in that, also comprise elastic component, be placed on this operating portion and two ends and abut this only defines this second hole wall to dish and this recreation room respectively, when this Mobile base is moved to this second place by the drive of this operating portion, this elastic component is only supported dish by this and this recreation room defines the wall compression in this second hole and has elastic-restoring force.
22. optical projection systems as claimed in claim 17, it is characterized in that, this pedestal has track, this track extends along this switching shaft direction, this Mobile base has sliding part, and this sliding part is arranged on this track, and this Mobile base is slided along this switching shaft on this track by this sliding part.
23. optical projection systems as claimed in claim 22, it is characterized in that, this sliding part comprises Spring screws and protuberance, and this Spring screws is through this track with this protuberance that locks, and this Spring screws provides pulling force to make to have friction force between this protuberance and this pedestal.
24. optical projection systems as claimed in claim 17, it is characterized in that, this switching shaft is perpendiculared to one another with this light path.
CN201510111770.8A 2014-11-11 2015-03-13 Color wheel switching structure and projection system with color wheel switching structure Active CN104820332B (en)

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CN2014106291458 2014-11-11
CN201410629145.8A CN104407492A (en) 2014-11-11 2014-11-11 Color wheel switching structure and projection system with color wheel switching structure
CN201510111770.8A CN104820332B (en) 2014-11-11 2015-03-13 Color wheel switching structure and projection system with color wheel switching structure

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CN105045026A (en) * 2015-09-16 2015-11-11 重庆泽青巨科技发展有限公司 Projection display device

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