CN102902143B - Lens moving mechanism and projector - Google Patents
Lens moving mechanism and projector Download PDFInfo
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- CN102902143B CN102902143B CN201210370302.9A CN201210370302A CN102902143B CN 102902143 B CN102902143 B CN 102902143B CN 201210370302 A CN201210370302 A CN 201210370302A CN 102902143 B CN102902143 B CN 102902143B
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Abstract
The invention discloses a lens moving mechanism and a projector. The lens moving mechanism comprises a fixing member, two sliding members and a lens fixing member, wherein the two sliding members can slide along two different sliding directions relative to the fixing member so as to independently drive the lens fixing member to slide, so that when one sliding member drives the lens fixing member to move, and the other sliding member cannot move together. Therefore, the position of a projection lens fixed on the lens fixing member corresponding to the position of the fixing member can be adjusted by moving the two sliding members. The lens moving mechanism and the projector can adjust the position of the lens fixing member in plane mode by independently moving the first sliding member and the second sliding member so as to adjust the position of the projection lens in plane mode without moving the whole projector, the adjusting can be completed conveniently and fast, and the problem of tolerance accumulation due to the fact that projectors in the prior art adopt overlaid structures is solved.
Description
Technical field
The present invention relates to a kind of lens displacing mechanism and projector, especially a kind of lens displacing mechanism for planar movement camera lens and there is the projector of lens plane locomotive function.
Background technology
Projector, before normal use, first need be fixedly installed, such as, is positioned on desktop or is fixed on ceiling.After projector's electric power starting, projector can via its projection lens projection image on screen.But, in practical operation, on screen, usually also need the adjustment position of image on screen (such as adjusting the position of projection lens) and projection focal length for correct projection image.When projector places on the table, user need adjust and be arranged at foot rest bottom projector to adjust rational height or the angle of projector, indirectly changes the position of projection lens.Because the degree of stability of projector's integrated support undertaken by foot rest, therefore user need adjust multiple foot rest usually can complete aforementioned adjustment, causes inconvenience to a certain degree, especially for the situation of fine setting.In addition, aforementioned adjustment mode can only adjust vertical direction, cannot carry out the adjustment of horizontal direction, therefore the adjustment of horizontal direction only can realize by whole projector mobile on desktop, but due to the existence of friction force, the trimming precision of horizontal direction seems and is difficult to control.When ceiling is fixed in projector, aforementioned adjustment mode is then more difficult to be suitable for.
In addition, have the projector with lens plane locomotive function at present on the market, it utilizes lens displacing mechanism to realize the effect of adjustment camera lens.Its lens displacing mechanism is usually sequentially stacked and placed on holder (such as ray machine) with two movable plates and comes up implementation, wherein be slidably connected with a direction near the movable plate of this holder and this holder, another movable plate (i.e. the relative movable plate away from this holder) is then slidably connected with other direction with the aforementioned movable plate near this holder; Namely the projection lens of this projector is fixed on this relatively away from the movable plate of this holder.By this, this projection lens can by these two movable plates mobile with the effect of implementation planar movement.But because these two movable plates are stacked, therefore when this movable plate near this holder moves relative to this holder, this will move relative to the movable plate away from this holder thereupon; In other words, this projection lens is determined by the tolerance stack that these two movable part plates are stacked relative to the alignment tolerance of this holder, and so, by making, the positioning precision of this projection lens is wayward.
Summary of the invention
In view of the problem in prior art, an object of the present invention is to provide a kind of lens displacing mechanism, is installed in projector.The present invention utilizes the sliding part of two of this lens displacing mechanism independent movements to come the position of plane adjustment camera lens, without the need to mobile whole projector, and projector in known techniques can be avoided to adopt stacked structure and produce the problem of tolerance stack.
To achieve these goals, the present invention proposes a kind of lens displacing mechanism, this lens displacing mechanism comprises fixture, the first sliding part, the second sliding part, the first sliding connection structure, the second sliding connection structure and lens mount, this fixture defines the first glide direction and the second glide direction, between this second glide direction and this first glide direction, shape has angle; This first sliding connection structure connects this fixture and this first sliding part; This second sliding connection structure connects this fixture and this second sliding part; Lens mount is in order to fix a projection lens, this first sliding part drives this lens mount to move along this first glide direction via the first serial verb construction, and make this second sliding part drive this lens mount to move along this second glide direction via the second serial verb construction, wherein, when this first sliding part moves with this first glide direction, this second sliding part can not and then movement, and when this second sliding part moves with this second glide direction, this first sliding part can not and then movement.
As optional technical scheme, this second glide direction is perpendicular to this first glide direction.
As optional technical scheme, this first sliding connection structure comprises the first chute and the first guide pillar, this first chute extends along this first glide direction, this first guide pillar is slidably disposed in this first chute, wherein, this first chute to be formed on this first sliding part and this first guide pillar is fixed on this fixture accordingly; Or this first chute is formed on this fixture and this first guide pillar is fixed on this first sliding part accordingly.
As optional technical scheme, this first serial verb construction comprises two the first blocks, these two first blocks to be fixed on this first sliding part and to abut two relative sides of this lens mount, and this lens mount can be slided along this second glide direction relative to these two first blocks.
As optional technical scheme, this second serial verb construction comprises two the second blocks, these two second blocks to be fixed on this second sliding part and to abut the other two relative sides of this lens mount, and this lens mount can be slided along this first glide direction relative to these two second blocks.
As optional technical scheme, this first serial verb construction comprises the 4th chute and the 4th guide pillar, 4th chute extends along this second glide direction, 4th guide pillar is slidably disposed in the 4th chute, wherein, the 4th chute to be formed on this lens mount and the 4th guide pillar is fixed on this first sliding part accordingly; Or the 4th chute is formed on this first sliding part and this guide pillar is fixed on this lens mount accordingly.
As optional technical scheme, the 4th guide pillar comprises a rectangular post portion, and this rectangular post portion to be arranged in the 4th chute and to mate the profile of the 4th chute.
As optional technical scheme, this lens displacing mechanism also comprises the 3rd sliding connection structure, 3rd sliding connection structure connects this fixture and this lens mount, makes this lens mount can be parallel to this first glide direction relative to this fixture and this second glide direction is slided simultaneously.
As optional technical scheme, this lens displacing mechanism also comprises the first actuating device, this first actuating device is connected with this first sliding part, and when this first actuating device is operated, this first actuating device drives this first sliding part to slide along this first glide direction.
As optional technical scheme, this first sliding part and this second sliding part are a frame structure, and this second sliding part is arranged at inside this first sliding part.
Lens displacing mechanism of the present invention utilizes and independently the first sliding part of movement and the second sliding part can come the position that plane adjusts lens mount, thus plane have adjusted the position of projection lens, without the need to mobile whole projector, adjustment can be completed quickly and easily and can complete adjustment quickly and easily.In addition, this first sliding part and the second sliding part are independent of one another relative to the impact of the positioning precision of this fixture on lens mount, relative to the impact of known techniques camera lens positioning precision by cumulative limit, the invention provides better positioning precision.
In addition, the present invention also proposes a kind of projector, a kind of projector, and this projector comprises casing, lens displacing mechanism and projection lens, and wherein casing has camera lens opening; This lens displacing mechanism comprises fixture, the first sliding part, the second sliding part, the first sliding connection structure, the second sliding connection structure and lens mount, this fixture defines the first glide direction and the second glide direction, between this second glide direction and this first glide direction, shape has angle; This first sliding connection structure connects this fixture and this first sliding part; This second sliding connection structure connects this fixture and this second sliding part; Lens mount is in order to fix a projection lens, this first sliding part drives this lens mount to move along this first glide direction via the first serial verb construction, and make this second sliding part drive this lens mount to move along this second glide direction via the second serial verb construction, wherein, when this first sliding part moves with this first glide direction, this second sliding part can not and then movement, and when this second sliding part moves with this second glide direction, and this first sliding part can not and then movement; This projection lens is fixed on this lens mount and is exposed to this casing through this camera lens opening.
As optional technical scheme, this second glide direction is perpendicular to this first glide direction.
As optional technical scheme, this first sliding connection structure comprises the first chute and the first guide pillar, this first chute extends along this first glide direction, this first guide pillar is slidably disposed in this first chute, wherein, this first chute to be formed on this first sliding part and this first guide pillar is fixed on this fixture accordingly; Or this first chute is formed on this fixture and this first guide pillar is fixed on this first sliding part accordingly.
As optional technical scheme, this first serial verb construction comprises two the first blocks, these two first blocks to be fixed on this first sliding part and to abut two relative sides of this lens mount, and this lens mount can be slided along this second glide direction relative to these two first blocks.
As optional technical scheme, this second serial verb construction comprises two the second blocks, these two second blocks to be fixed on this second sliding part and to abut the other two relative sides of this lens mount, and this lens mount can be slided along this first glide direction relative to these two second blocks.
As optional technical scheme, this first serial verb construction comprises the 4th chute and the 4th guide pillar, 4th chute extends along this second glide direction, 4th guide pillar is slidably disposed in the 4th chute, wherein, the 4th chute to be formed on this lens mount and the 4th guide pillar is fixed on this first sliding part accordingly; Or the 4th chute is formed on this first sliding part and this guide pillar is fixed on this lens mount accordingly.
As optional technical scheme, the 4th guide pillar comprises a rectangular post portion, and this rectangular post portion to be arranged in the 4th chute and to mate the profile of the 4th chute.
As optional technical scheme, this lens displacing mechanism also comprises the 3rd sliding connection structure, 3rd sliding connection structure connects this fixture and this lens mount, makes this lens mount can be parallel to this first glide direction relative to this fixture and this second glide direction is slided simultaneously.
As optional technical scheme, this lens displacing mechanism also comprises the first actuating device, this first actuating device is connected with this first sliding part, and when this first actuating device is operated, this first actuating device drives this first sliding part to slide along this first glide direction.
As optional technical scheme, this first sliding part and this second sliding part are a frame structure, and this second sliding part is arranged at inside this first sliding part.
Projector of the present invention to utilize in lens displacing mechanism and independently the first sliding part of movement and the second sliding part can come the position of plane adjustment lens mount, thus plane have adjusted the position of projection lens, without the need to mobile whole projector, adjustment can be completed quickly and easily.In addition, this first sliding part and the second sliding part are independent of one another relative to the impact of the positioning precision of this fixture on lens mount, relative to the impact of known techniques camera lens positioning precision by cumulative limit, the invention provides better positioning precision.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a preferred embodiment of projector of the present invention;
Fig. 2 is the fragmentary cross-sectional view of Tu1Zhong projector;
Fig. 3 is the schematic diagram of the lens displacing mechanism of Tu1Zhong projector;
Fig. 4 is the exploded view of the lens displacing mechanism of Tu1Zhong projector;
Fig. 5 is the schematic diagram of another embodiment of lens displacing mechanism of the present invention.
Embodiment
Refer to Fig. 1 and Fig. 2, Fig. 1 is the schematic diagram of a preferred embodiment of projector 1 of the present invention, and Fig. 2 is the fragmentary cross-sectional view of projector 1, and its profile position can with reference to the position shown in figure 1 center line X-X.Projector 1 comprises casing 12, lens displacing mechanism 14 and projection lens 18.Casing 12 has camera lens opening 122 and two operation aperture 124.The corresponding camera lens opening 122 of lens displacing mechanism 14 is arranged in casing 12, and lens displacing mechanism 14 has the first operating portion 1584a, the second operating portion 1584b, and projection lens 18 is fixed on lens displacing mechanism 14 and is exposed to casing 12 through camera lens opening 122.User by rotating the first operating portion 1584a, the second operating portion 1584b adjusts projection lens 18 easily, without the need to mobile whole projector 1, thus, solve in known techniques with adjust foot rest height to realize projected position adjustment the unhandy problem of generation.
In the present embodiment, lens displacing mechanism 14 comprises fixture 142, first sliding part 144, first sliding connection structure 146, second sliding part 148, second sliding connection structure 150 and lens mount 152.Fixture 142 to be fixedly installed in casing 12 and definition first glide direction 142a and the second glide direction 142b on it, forms angle 142c between the second glide direction 142b and the first glide direction 142a.In practical operation, on the structural member that fixture 142 can be fixed on the optical-mechanical system of projector 1 or the part be directly integrated in the structure of this optical-mechanical system, but the present invention is not as limit, such as fixture 142 also can be the individual member be fixed on casing 12.First sliding connection structure 146 connection fixture 142 and the first sliding part 144, makes the first sliding part 144 can move along the first glide direction 142a relative to fixture 142; Second sliding connection structure 150 connection fixture 142 and the second sliding part 148, makes the second sliding part 148 can move along the second glide direction 142b relative to fixture 142.Arranging of lens mount 152 can make the first sliding part 144 lens mount 152 can be driven to move along the first glide direction 142a via the first serial verb construction 154, and the second sliding part 148 can be made to drive lens mount 152 to move along the second glide direction 142b via the second serial verb construction 156.Projection lens 18 to be fixed on lens mount 152 and to move thereupon, screw can be utilized to lock or the mode of structure engaging realizes the fixing of projection lens 18 and lens mount 152 in practical operation, and user can select voluntarily according to actual conditions, not as limit; In this instructions, for simplifying drawing, this fixing details does not separately repeat.
Wherein, when the first sliding part 144 moves along the first glide direction 142a, the second sliding part 148 can not and then movement, and when the second sliding part 148 moves along the second glide direction 142b, the first sliding part 144 can not and then movement.Therefore, first sliding part 144 and the second sliding part 148 are independent of each other relative to the movement of fixture 142, in practical operation, the structure also independent design of the first sliding part 144 and the second sliding part 148, therefore its structure precision, running fix are also independent of one another, this kind of structural design contribute to lifting first sliding part and the second sliding part separately movement stability and the positioning precision of lens mount 152 (and projection lens 18) can be improved.Supplementary notes, by the movement of the first sliding part 144 and the second sliding part 148, lens mount 152 can move in the plane being parallel to the first glide direction 142a and the second glide direction 142b.In the present embodiment, the first glide direction 142a is perpendicular to the second glide direction 142b, that is angle 142c is 90 degree, but the present invention is not as limit.In principle, only need angle 142c non-vanishing, that is first glide direction 142a differ from the second glide direction 142b, lens mount 152 (that is positioning projection's camera lens 18) can be located by the first sliding part 144 and the second sliding part 148 in this plane.
In addition, in the present embodiment, the start of the first sliding part 144 and the second sliding part 148 driven via the first actuating device 158a, the second actuating device 158b that are connected with the first sliding part 144 and the second sliding part 148 respectively.In the present embodiment, first actuating device 158a to be arranged in casing 12 and to comprise the first convergence part 1582a engaged with the first sliding part 144 and the first operating portion 1584a engaged with the first convergence part 1582a, wherein the first sliding part 144 is in also having with the first 1582a engagement place, convergence part the tooth section mated with the first convergence part 1582a, does not separately repeat.First operating portion 1584a is exposed to casing 12 from operation aperture 124, and user can slide along the first glide direction 142a to drive the first sliding part 144 by operation first operating portion 1584a.Second actuating device 158b to be arranged in casing 12 and to comprise the second convergence part 1582b engaged with the second sliding part 148 and the second operating portion 1584b be indirectly connected with the second convergence part 1582b, wherein the second convergence part 1582b is illustrated with dotted line by the part that lens mount 152 covers, and the part that the second sliding part 148 engages with the second convergence part 1582b also illustrates with dotted line.In addition, due in the present embodiment, first sliding part 144 and the second sliding part 148 are frame structure, and the second sliding part 148 is arranged at inside the first sliding part 144, therefore the gear set of the second actuating device 158b uses more gear, to avoid structural interference to occur, but user still can slide along the second glide direction 142b to drive the second sliding part 148 by operation second operating portion 1584b.What remark additionally is, in the present embodiment, first actuating device 158a, the second actuating device 158b are all with manual drive gear set implementation, but the present invention is not as limit, such as with motor driven gear wheel group, again or change with linkage assembly operation to drive the first sliding part 144 and the second sliding part 148, be known by prior art person, separately do not repeat.
Referring to Fig. 3 and Fig. 4.Fig. 3 is the schematic diagram of lens displacing mechanism 14, and Fig. 4 is the exploded view of lens displacing mechanism 14, and wherein for simplifying drawing, the first actuating device 158a, the second actuating device 158b are not all illustrated in Fig. 3 and Fig. 4.First sliding connection structure 146 comprises four groups of structures, is symmetrical arranged relative to lens mount 152, and each group structure all comprises the first chute 1462 and the first guide pillar 1464.First chute 1462 to be formed on the first sliding part 144 and to extend along the first glide direction 142a.First guide pillar 1464 correspondence to be fixed on fixture 142 and to comprise the first cylinder 1464a and the first column cap 1464b, first cylinder 1464a is arranged in the first chute 1462, first column cap 1464b to be fixedly connected on the first cylinder 1464a and to protrude from the first sliding part 144, make the first cylinder 1464a can relative sliding in the first chute 1462 and the first sliding part 144 can not depart from the connection with the first sliding connection structure 146 in time sliding.By this, the first sliding part 144 can be stably driven and slide along the first glide direction 142a relative to fixture 142.In the present embodiment, the length of the first chute 1462 can be used as the use of the distance that restriction first sliding part 144 slides along the first glide direction 142a, but the present invention is not as limit.
Similarly, the second sliding connection structure 150 comprises four groups of structures, is symmetrical arranged relative to lens mount 152, and each group structure all comprises the second chute 1502 and the second guide pillar 1504.Second chute 1502 to be formed on the second sliding part 148 and to extend along the second glide direction 142b.Second guide pillar 1504 correspondence to be fixed on fixture 142 and to comprise the second cylinder 1504a and the second column cap 1504b, second cylinder 1504a is arranged in the second chute 1502, second column cap 1504b to be fixedly connected on the second cylinder 1504a and to protrude from the second sliding part 148, make the second cylinder 1504a can relative sliding in the second chute 1502 and the second sliding part 148 can not depart from the connection with the second sliding connection structure 150 in time sliding.By this, the second sliding part 148 can be stably driven and slide in the second glide direction 142b relative to fixture 142.In the present embodiment, the length of the second chute 1502 can be used as the use of the distance that restriction second sliding part 148 slides along the second glide direction 142b, but the present invention is not as limit.
Supplementary notes, in Fig. 3 and Fig. 4, the first cylinder 1464a and the second cylinder 1504a is all direct represents with cylinder, with simplified illustration.In the present embodiment, the first sliding part 144 and the second sliding part 148 are all separated by with fixture 142 surface a bit of distance, can reduce the situation of the first sliding part 144 and the second sliding part 148 and fixture 142 mantle friction, but the present invention are not as limit.Aforementioned first sliding part 144 and the second sliding part 148 all and fixture 142 carry out interval and arrange and can realize by the first cylinder 1464a and the second cylinder 1504a is formed the cylinder with offset external diameter, or realize by the first chute 1462, second chute 1502 is formed the chute with offset, this all can be well known to those skilled in the art, directly or get final product full implementation via simple experiment, therefore other CONSTRUCTED SPECIFICATION repeat no more.In addition, in the present embodiment, the first sliding part 144 and the second sliding part 148, to arrange from the surperficial unequal-interval of fixture 142, can be convenient to the setting of the second actuating device 158b, but the present invention are not as limits.Such as, the first sliding part 144 and the second sliding part 148 are arranged relative to fixture 142 with uniform distances, be conducive to reducing lens displacing mechanism 14 in perpendicular to the first glide direction 142a and the second glide direction 142b form the thickness in the direction of plane.
In addition, in the present embodiment, the first sliding connection structure 146 is fixed on fixture 142 with the first guide pillar 1464 and operates, but the present invention is not to be limited.Such as the first guide pillar 1464 is fixed on the first sliding part 144, first chute 1462 is formed on fixture 142, now for the first sliding part 144 when preventing the first sliding part 144 from connecting the first guide pillar 1464 departs from the first chute 1462, first chute 1462 can adopt dovetail groove structure, first guide pillar 1464 slide on part in the first chute 1462 then corresponding first chute 1462 cross section and formed, this can be well known to those skilled in the art, get final product full implementation via simple experiment, therefore other CONSTRUCTED SPECIFICATION repeat no more.Aforementioned explanation is also applicable to the second sliding connection structure 150, does not separately repeat.
In the present embodiment, first serial verb construction 154 comprises two the first blocks 1542, to be fixed on the first sliding part 144 and two of contact lens mount 152 relative side 152a, wherein, lens mount 152 can slide along the second glide direction 142b relative to the first block 1542.Second serial verb construction 156 comprises two the second blocks 1562, be fixed on the side 152b that the two other of also contact lens mount 152 on the second sliding part 148 is relative, wherein, lens mount 152 can slide along the first glide direction 142a relative to the second block 1562.By this, when the first sliding part 144 moves along the first glide direction 142a, the first sliding part 144 can promote lens mount 152 via the first block 1542 and move along the first glide direction 142a, but lens mount 152 can not move along the second glide direction 142b; Similarly, when the second sliding part 148 moves along the second glide direction 142b, second sliding part 148 can promote lens mount 152 via the second block 1562 and move together along the second glide direction 142b, but lens mount 152 can not move along the first glide direction 142a.
In the present embodiment, because the first block 1542 and the second block 1562 are with side 152a, 152b of plane contact lens mount 152, lens displacing mechanism 14 also comprises the 3rd sliding connection structure 160, connection fixture 142 and lens mount 152, make lens mount 152 more stably both can be parallel to the first glide direction 142a relative to fixture 142 to slide, the second glide direction 142b can be parallel to again and slide.3rd sliding connection structure 160 comprises four groups of structures, is symmetrical arranged relative to lens mount 152, and each group structure all comprises the 3rd chute 1602 and the 3rd guide pillar 1604.3rd chute 1602 is formed on lens mount 152.3rd guide pillar 1604 correspondence to be fixed on fixture 142 and to comprise the 3rd cylinder 1604a and the 3rd column cap 1604b, 3rd cylinder 1604a is arranged in the 3rd chute 1602,3rd column cap 1604b to be fixedly connected on the 3rd cylinder 1604a and to protrude from lens mount 152, make the 3rd cylinder 1604a can relative motion in the 3rd chute 1602 and make lens mount 152 be driven mobile respectively by the first sliding part 144 and the second sliding part 148 time can not depart from the connection with the 3rd sliding connection structure 160.This structural design contributes to the degree of stability of lens mount 152 movement and effect of restriction lens mount 152 moving range.
What remark additionally is, in the present embodiment, first serial verb construction 154 and the second serial verb construction 156 are all only with planar structure contact lens mount 152, therefore only have the function (also having the function preventing lens mount 152 from rotating to a certain degree) promoting lens mount 152, but the present invention is not as limit.The sliding groove structure supplying side 152a, 152b of lens mount 152 to snap in such as can be formed on the first block 1542 and the second block 1562, this sliding groove structure can limit the movement of lens mount 152 on the direction perpendicular to the first glide direction 142a and the second glide direction 142b, now, aforementioned 3rd sliding connection structure 160 also can omit setting.
In addition, in the present embodiment, the first serial verb construction 154 and the second serial verb construction 156 in the mode of the first block the 1542 and the 2 1562 ejection lens mount 152, realize effect of moving lens fixture 152, but the present invention are not as limits respectively.Refer to Fig. 5, it is the schematic diagram of another embodiment of lens displacing mechanism 34 of the present invention.Lens displacing mechanism 34 is roughly the same with lens displacing mechanism 14 structure, therefore lens displacing mechanism 34 still continues to use the component symbol of lens displacing mechanism 14, and the related description of aforementioned lens displacing mechanism 14, in this applicable person, also has applicable, separately do not repeat.Lens displacing mechanism 34 and lens displacing mechanism 14 main difference part are that the first serial verb construction 354 of lens displacing mechanism 34 comprises and are relatively formed at two the 4th chutes 3542 on lens mount 352 and corresponding two the 4th guide pillars 3544 be fixed on the first sliding part 144,4th chute 3542 extends along the second glide direction 142b, its length also can be used as the use of the distance that restriction first sliding part 144 slides along the second glide direction 142b, but the present invention is not as limit.4th guide pillar 3544 is arranged in the 4th chute 3542, make the 4th guide pillar 3544 can relative sliding in the 4th chute 3542.By this, the first sliding part 144 can drive lens mount 352 to move along the first glide direction 142a via the first serial verb construction 354 equally.
What remark additionally is, single group of the 4th chute 3542 and the 4th guide pillar 3544 can realize the function that driving lens mount 352 slides along the first glide direction 142a in principle, but in the present embodiment, be symmetrical arranged two group of the 4th chute 3542 and the 4th guide pillar 3544 more can make lens displacing mechanism 34 have the degree of stability of start, but the present invention is not still as limit.In addition, in the present embodiment, 4th guide pillar 3544 comprises a rectangular post portion, more precisely, 4th guide pillar 3544 is a rectangular column, this rectangular post portion to be arranged in the 4th chute 3542 and to mate the profile of the 4th chute 3542, make single group of the 4th chute 3542 and the 4th guide pillar 3544 can realize the function preventing lens mount 352 from rotating, but the present invention is not as limit.In addition, the framework above the first sliding part 144 is stacked and placed on the lens mount 352 shown in Fig. 5, in practical operation, aforementioned 4th chute 3542 and the 4th guide pillar 3544 coordinate start also to can be the 4th chute 3542 to be formed on the first sliding part 144 and the 4th guide pillar 3544 to be fixed on lens mount 352 and the configuration stretched in the 4th chute 3542 and realizing.Utilize the first serial verb construction 354 in earlier figures 5 to replace the explanation of the first serial verb construction 154 described in Fig. 3 and Fig. 4, be also applicable to and replace the second serial verb construction 156 described in Fig. 3 and Fig. 4, needless to say repeat.
Lens displacing mechanism of the present invention and projector utilize and independently the first sliding part of movement and the second sliding part can come the position that plane adjusts lens mount, thus plane have adjusted the position of projection lens, without the need to mobile whole projector, adjustment can be completed quickly and easily.In addition, this first sliding part and the second sliding part are independent of one another relative to the impact of the positioning precision of this fixture on lens mount, relative to the impact of known techniques camera lens positioning precision by cumulative limit, the invention provides better positioning precision.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (11)
1. a lens displacing mechanism, comprise fixture, the first sliding part, the first sliding connection structure and the second sliding part, this fixture defines the first glide direction and the second glide direction, between this second glide direction and this first glide direction, shape has angle, this first sliding connection structure connects this fixture and this first sliding part, this first sliding part can be moved along this first glide direction relative to this fixture, it is characterized in that this lens displacing mechanism also comprises:
Second sliding connection structure, this second sliding connection structure connects this fixture and this second sliding part, and this second sliding part can be moved along this second glide direction relative to this fixture; And
Lens mount, in order to fix a projection lens, this first sliding part drives this lens mount to move along this first glide direction via the first serial verb construction, and make this second sliding part drive this lens mount to move along this second glide direction via the second serial verb construction, wherein, when this first sliding part moves with this first glide direction, this second sliding part can not and then movement, and this second sliding part is when moving with this second glide direction, this first sliding part can not and then movement.
2. lens displacing mechanism according to claim 1, is characterized in that: this second glide direction is perpendicular to this first glide direction.
3. lens displacing mechanism according to claim 1, it is characterized in that: this first sliding connection structure comprises the first chute and the first guide pillar, this first chute extends along this first glide direction, this first guide pillar is slidably disposed in this first chute, wherein, this first chute to be formed on this first sliding part and this first guide pillar is fixed on this fixture accordingly; Or this first chute is formed on this fixture and this first guide pillar is fixed on this first sliding part accordingly.
4. lens displacing mechanism according to claim 1, it is characterized in that: this first serial verb construction comprises two the first blocks, these two first blocks to be fixed on this first sliding part and to abut two relative sides of this lens mount, and this lens mount can be slided along this second glide direction relative to these two first blocks.
5. lens displacing mechanism according to claim 4, it is characterized in that: this second serial verb construction comprises two the second blocks, these two second blocks to be fixed on this second sliding part and to abut the other two relative sides of this lens mount, and this lens mount can be slided along this first glide direction relative to these two second blocks.
6. lens displacing mechanism according to claim 1, it is characterized in that: this first serial verb construction comprises the 4th chute and the 4th guide pillar, 4th chute extends along this second glide direction, 4th guide pillar is slidably disposed in the 4th chute, wherein, the 4th chute to be formed on this lens mount and the 4th guide pillar is fixed on this first sliding part accordingly; Or the 4th chute is formed on this first sliding part and this guide pillar is fixed on this lens mount accordingly.
7. lens displacing mechanism according to claim 6, is characterized in that: the 4th guide pillar comprises a rectangular post portion, and this rectangular post portion to be arranged in the 4th chute and to mate the profile of the 4th chute.
8. lens displacing mechanism according to claim 1, it is characterized in that: this lens displacing mechanism also comprises the 3rd sliding connection structure, 3rd sliding connection structure connects this fixture and this lens mount, makes this lens mount can be parallel to this first glide direction relative to this fixture and this second glide direction is slided simultaneously.
9. lens displacing mechanism according to claim 1, it is characterized in that: this lens displacing mechanism also comprises the first actuating device, this first actuating device is connected with this first sliding part, when this first actuating device is operated, this first actuating device drives this first sliding part to slide along this first glide direction.
10. lens displacing mechanism according to claim 1, is characterized in that: this first sliding part and this second sliding part are a frame structure, and this second sliding part is arranged at inside this first sliding part.
11. 1 kinds of projectors, is characterized in that this projector comprises:
Casing, has camera lens opening;
As the lens displacing mechanism described in any one claim in claim 1 to 10; And
Projection lens, this projection lens is fixed on this lens mount and is exposed to this casing through this camera lens opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN108710252B (en) * | 2018-05-02 | 2020-09-08 | 苏州佳世达光电有限公司 | Projection device |
| CN110531569A (en) * | 2019-08-29 | 2019-12-03 | 中山联合光电科技股份有限公司 | A kind of device of energy translational adjustment projected picture |
Citations (5)
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|---|---|---|---|---|
| JP2005284130A (en) * | 2004-03-30 | 2005-10-13 | Thk Co Ltd | Lens movement mechanism |
| JP3867417B2 (en) * | 1998-09-30 | 2007-01-10 | コニカミノルタオプト株式会社 | Lens movement mechanism |
| CN101373242A (en) * | 2007-08-20 | 2009-02-25 | 中强光电股份有限公司 | Lens adjusting apparatus |
| CN101533139A (en) * | 2008-03-12 | 2009-09-16 | 佳世达科技股份有限公司 | Lens shifting device and projecting camera with same |
| TW201202832A (en) * | 2010-07-13 | 2012-01-16 | Inventec Corp | Projecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100592186C (en) * | 2007-04-16 | 2010-02-24 | 奇菱科技股份有限公司 | Lens biaxial adjustment mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3867417B2 (en) * | 1998-09-30 | 2007-01-10 | コニカミノルタオプト株式会社 | Lens movement mechanism |
| JP2005284130A (en) * | 2004-03-30 | 2005-10-13 | Thk Co Ltd | Lens movement mechanism |
| CN101373242A (en) * | 2007-08-20 | 2009-02-25 | 中强光电股份有限公司 | Lens adjusting apparatus |
| CN101533139A (en) * | 2008-03-12 | 2009-09-16 | 佳世达科技股份有限公司 | Lens shifting device and projecting camera with same |
| TW201202832A (en) * | 2010-07-13 | 2012-01-16 | Inventec Corp | Projecting device |
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