WO2023226139A1 - 投影光机 - Google Patents
投影光机 Download PDFInfo
- Publication number
- WO2023226139A1 WO2023226139A1 PCT/CN2022/101479 CN2022101479W WO2023226139A1 WO 2023226139 A1 WO2023226139 A1 WO 2023226139A1 CN 2022101479 W CN2022101479 W CN 2022101479W WO 2023226139 A1 WO2023226139 A1 WO 2023226139A1
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- WO
- WIPO (PCT)
- Prior art keywords
- prism
- positioning surface
- hole
- triangular prism
- projection light
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 claims description 30
- 238000010586 diagram Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
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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
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/181—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
Definitions
- the present invention relates to the technical field of projection light machines, and in particular to a projection light machine.
- the main purpose of the present invention is to provide a projection light engine, aiming to solve the technical problem of virtual focus caused by the projection light engine in the prior art.
- the present invention provides a projection light machine, which includes a body and a triangular prism.
- the body is provided with a slot and a first positioning surface.
- the triangular prism includes a first side and a second side connected end to end. and a hypotenuse, the second side and the hypotenuse form a bevel end, the first side is arranged in close contact with the first positioning surface, and the bevel end is engaged with the slot,
- the body is provided with a through hole at a position on the bottom surface of the prism.
- the through hole is filled with adhesive glue, and the adhesive glue is bonded to the prism.
- the size of the through hole increases from the end close to the prism.
- One side is gradually expanded toward the side away from the triangular prism.
- the through hole is a tapered hole.
- the number of the through holes is one.
- the first positioning surface includes at least two sub-positioning surfaces arranged at intervals, and the two sub-positioning surfaces are respectively attached to the first side.
- the card slot includes a bottom wall and first and second side walls respectively connected to both sides of the bottom wall.
- the width of the card slot extends from the bottom wall to the card slot.
- the opening is gradually expanded, and the first side wall and the second side are arranged in contact with each other.
- the second side wall is arranged parallel to the hypotenuse.
- the body is further provided with a second positioning surface, the second positioning surface and the first side wall are located on the same plane, and the second positioning surface and the second side Fit settings.
- the second positioning surface and the first side wall are respectively provided at both ends of the second side surface.
- the triangular prism is a right-angled prism, and the first side and the second side are perpendicular to each other.
- the body is further provided with at least two bosses, and at least two of the bosses have the same height.
- the projection light machine includes a body and a prism.
- the body is provided with a slot and a first positioning surface.
- the prism includes a first side, a second side and a hypotenuse connected end to end. The second side and the hypotenuse are connected end to end.
- a beveled end is formed, the first side and the first positioning surface are arranged in close contact, the beveled end is clamped in the slot, the main body is provided with a through hole at the bottom surface of the prism, and the through hole is filled with adhesive glue, and the adhesive glue Bonded with the prism, the size of the through hole is gradually expanded from the side close to the prism to the side far away from the prism.
- the first positioning surface is used to position the first side of the triangular prism, and the slot is used to position and fix the triangular prism.
- the size of the through hole is varied. The end close to the prism is smaller in size, while the end far away from the prism is larger in size. This causes the adhesive to experience a downward reaction force from the side wall of the through hole when it expands upward. component force, thereby blocking the expansion of the adhesive glue and offsetting the force that the expansion may exert on the prism, avoiding the force exerted on the bottom of the prism by the thermal expansion of the adhesive glue, thus avoiding the deflection of the prism. The phenomenon of thermal defocusing is eliminated.
- Figure 1 is a schematic three-dimensional structural diagram of a projection light machine according to an embodiment of the present invention
- Figure 2 is a partial structural schematic diagram of a projection light machine according to an embodiment of the present invention.
- Figure 3 is an enlarged view of Figure 2 at A;
- Figure 4 is a partial three-dimensional structural schematic diagram of a projection light machine according to an embodiment of the present invention (with the prism removed);
- Figure 5 is a top view of Figure 4.
- Figure 6 is a schematic structural diagram of a cylindrical through hole in the prior art
- Figure 7 is a stress analysis diagram of the adhesive in the through hole according to the embodiment of the present invention.
- FIG. 8 is a schematic diagram showing the relationship between various dimensions and angles of the through holes according to the embodiment of the present invention.
- FIG. 2 shows the position of the through hole 4 located at the bottom of the triangular prism 2 .
- the invention provides a projection light machine, which includes a body 1 and a triangular prism 2.
- the body 1 is provided with a slot 3 and a first positioning surface 5.
- the triangular prism 2 includes a first side 21, a second side 22 and a first side 21 connected end to end.
- the hypotenuse 23, the second side 22 and the hypotenuse 23 form a bevel end 24, the first side 21 is arranged in close contact with the first positioning surface 5, the bevel end 24 is engaged with the slot 3, and the body 1 is located on the prism 2
- a through hole 4 is provided on the bottom surface.
- the through hole 4 is filled with adhesive glue 9.
- the adhesive glue 9 is bonded to the prism 2.
- the size of the through hole 4 extends from the side close to the prism 2 to the side far away from the prism 2. Fade setting.
- the through hole is generally a cylindrical hole 8
- the adhesive 9 is filled in the cylindrical hole 8 .
- the temperature of the main body 1 of the projection light machine rises, the heated molecular motion of the glue molecules intensifies, and the macroscopic manifestation is an increase in the volume and temperature of the glue.
- the adhesive glue 9 is limited in the radial direction within the cylinder, the height increases in the vertical direction. , the force exerted on the bottom surface of the prism 2 causes the position of the prism 2 to shift, thereby causing the optical projection to change and form thermal virtual focus.
- the first positioning surface 5 is used to position the first side 21 of the triangular prism 2, and the slot 3 is used to position and fix the triangular prism 2.
- the size of the through hole 4 is varied. The end close to the prism 2 is smaller in size, while the end far away from the prism 2 is larger. In this way, when the adhesive 9 expands upward, it will be affected by a force from the side wall of the through hole 4.
- the component of the downward reaction force blocks the expansion of the adhesive glue 9 and offsets the force that the expansion may produce on the prism 2, preventing the prism 2 from being affected by the thermal expansion of the adhesive glue 9 and exerting force on the bottom of the prism 2. function, thereby avoiding the deflection of the prism 2 and eliminating the thermal defocusing phenomenon.
- the inner wall produces a vertical upward force, and the reaction force f can be decomposed into a vertical downward force fb; in the horizontal direction, the adhesive glue 9 produces an outward force along the radius on the inner wall, and the reaction force f can be decomposed into The inner wall exerts an inward force fa on the glue.
- f is the resultant force of fa and fb. It can be seen from the above analysis that the side wall of the through hole 4 offsets the vertical upward force of the adhesive glue 9, which also offsets the original force of the adhesive glue 9 on the prism 2, thus ensuring that the position of the prism 2 does not shift. , which plays a role in eliminating the phenomenon of thermal defocusing.
- the above-mentioned adhesive glue 9 can be a photosensitive glue, the prism 2 is a right-angled prism 2, and the first side 21 and the second side 22 are perpendicular to each other.
- the through hole 4 is a tapered hole. It should be noted that the present invention does not specifically limit the shape of the through hole 4, as long as the design of the side wall structure of the through hole 4 can produce a force on the adhesive glue 9 away from the prism 2, offset or reduce the force of the adhesive glue 9 9The force exerted by the expansion on the prism is enough.
- the shape of the through hole 4 can also be a cubic structure with a rectangular or square cross-section, a trumpet-shaped structure, or other irregular structures with varying dimensions.
- a zigzag shape can also be provided on the inner wall of the through hole 4 to increase the side wall's resistance to the adhesive. 9 Expansion blocking effect.
- This embodiment is preferably a tapered hole, which is more convenient in processing.
- R be the radius of the lower circle
- r be the radius of the upper circle
- H be the thickness of the bottom body of the optical machine (or the height of the through hole 4)
- h be the virtual height.
- ⁇ is the angle between the hypotenuse 23 and the vertical direction.
- the size of ⁇ is related to the radius of the upper and lower circles of the through hole 4, which can be obtained from the trigonometric function relationship:
- the number of through holes 4 is one. Because the temperature distribution in the main body of the optical machine is uneven, the arrangement of multiple through holes 4 will cause different expansion degrees of glue at different positions, causing the prism 2 to shift. Of course, this embodiment is only a preferred embodiment. In fact, two or more through holes 4 may be provided as needed.
- the first positioning surface 5 includes at least two spaced apart sub-positioning surfaces 51 , and the two sub-positioning surfaces 51 are respectively attached to the first side 21 .
- the first positioning surface 5 may be an entire plane, or may include sub-positioning surfaces 51 arranged at intervals. Each sub-positioning surface 51 is located on the same plane, and each sub-positioning surface 51 is in contact with the first side 21 . Positioning function.
- the card slot 3 includes a bottom wall 33 and a first side wall 31 and a second side wall 32 respectively connected to both sides of the bottom wall 33.
- the width of the card slot 3 extends from the bottom wall 33 of the card slot 3 to the card slot.
- the opening of 3 is gradually expanded, and the first side wall 31 and the second side 22 are arranged in contact with each other.
- the slot 3 is used to fix the prism 2, and there is a small gap with the bevel end 24 of the prism 2 for easy installation.
- the first side wall 31 of the slot 3 fits the second side 22 of the prism 2 to ensure Prism 2 will not move.
- the fit mentioned here is only the fit between the first side wall 31 and the second side 22 at the bevel end 24 , rather than the fit between the first side wall 31 and the entire second side 22 .
- the second side wall 32 is arranged parallel to the hypotenuse 23 .
- the body 1 is also provided with a second positioning surface 6 .
- the second positioning surface 6 is located on the same plane as the first side wall 31 , and the second positioning surface 6 is in close contact with the second side 22 .
- the second positioning surface 6 also plays a positioning role.
- the second positioning surface 6 is located on the same plane as the first side wall 31 , ensuring that the second positioning surface 6 can be arranged in close contact with the second side 22 like the first side wall 31 . , Only in this way can it play a good positioning role.
- the second positioning surface 6 and the first side wall 31 are respectively provided at both ends of the second side, and respectively position the second side 22 from both ends to prevent one end of the second side 22 from being deflected due to force.
- the flatness of the first positioning surface 5 and the second positioning surface 6 is controlled at 0.01 ⁇ 0.005mm.
- the body 1 is further provided with at least two bosses 7, and the heights of the at least two bosses 7 are the same.
- the bosses 7 are used for positioning and supporting. At least two bosses 7 have the same height, ensuring that the bottom surfaces of the prisms 2 are placed parallel, and the flatness of the bosses 7 is controlled at 0.01 ⁇ 0.005mm.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
本发明提供一种投影光机，投影光机包括本体和三棱镜，本体上设置有卡槽和第一定位面，三棱镜包括首尾相接的第一侧边、第二侧边和斜边，第二侧边与斜边形成斜角端，第一侧边与第一定位面贴合设置，斜角端卡接于卡槽，本体位于三棱镜底面的位置设置有通孔，通孔内填充有粘接胶，粘接胶与三棱镜粘接，通孔的尺寸自靠近三棱镜的一侧向远离三棱镜的一侧呈渐扩设置。该投影光机避免了三棱镜受粘接胶热膨胀的作用而对三棱镜底部产生力的作用，也就避免了三棱镜的偏移，消除了热虚焦现象。
Description
本发明涉及投影光机技术领域，尤其涉及一种投影光机。
随着微型投影仪技术的发展，家用投影光机越来越多的进入了人们的视野。但投影光机随着点亮时间的延长将出现不可避免的问题－虚焦。具体地，因为长时间的工作使投影光机内部温度急剧上升，固定胶点产生热膨胀使三棱镜偏移原有位置，从而产生投影画面虚焦。
鉴于此，有必要提供一种新型的投影光机，以解决或至少缓解上述技术缺陷。
发明内容
本发明的主要目的是提供一种投影光机，旨在解决现有技术中投影光机产生虚焦的技术问题。
为实现上述目的，本发明提供一种投影光机，包括本体和三棱镜，所述本体上设置有卡槽和第一定位面，所述三棱镜包括首尾相接的第一侧边、第二侧边和斜边，所述第二侧边与所述斜边形成斜角端，所述第一侧边与所述第一定位面贴合设置，所述斜角端卡接于所述卡槽，所述本体位于所述三棱镜底面的位置设置有通孔，所述通孔内填充有粘接胶，所述粘接胶与所述三棱镜粘接，所述通孔的尺寸自靠近所述三棱镜的一侧向远离所述三棱镜的一侧呈渐扩设置。
在一实施例中，所述通孔为锥形孔。
在一实施例中，所述通孔的数量为一个。
在一实施例中，所述第一定位面包括至少两个间隔设置的子定位面，两个所述子定位面分别于所述第一侧边贴合。
在一实施例中，所述卡槽包括底壁和分别连接于所述底壁两侧的第一侧壁和第二侧壁，所述卡槽的宽度自所述底壁向所述卡槽开口呈渐扩设置，且所述第一侧壁与所述第二侧边贴合设置。
在一实施例中，所述第二侧壁与所述斜边平行设置。
在一实施例中，所述本体上还设置有第二定位面，所述第二定位面与所述第一侧壁位于同一平面上，且所述第二定位面与所述第二侧边贴合设置。
在一实施例中，所述第二定位面和所述第一侧壁分设于所述第二侧面两端。
在一实施例中，所述三棱镜为直角三棱镜，所述第一侧边和所述第二侧边相互垂直。
在一实施例中，所述本体上还设置有至少两个凸台，至少两个所述凸台的高度相同。
上述方案中，投影光机包括本体和三棱镜，本体上设置有卡槽和第一定位面，三棱镜包括首尾相接的第一侧边、第二侧边和斜边，第二侧边与斜边形成斜角端，第一侧边与第一定位面贴合设置，斜角端卡接于卡槽，本体位于三棱镜底面的位置设置有通孔，通孔内填充有粘接胶，粘接胶与三棱镜粘接，通孔的尺寸自靠近三棱镜的一侧向远离三棱镜的一侧呈渐扩设置。第一定位面用于对三棱镜的第一侧边进行定位，卡槽用于对三棱镜进行定位和固定。该发明中通孔尺寸呈变化设置，靠近三棱镜的一端尺寸较小，而远离三棱镜的一端尺寸较大，这样使得粘接胶向上膨胀时会受到通孔侧壁给的一个向下的反作用力的分力，进而阻挡粘接胶的膨胀和抵销膨胀可能对三棱镜产生的作用力，避免了三棱镜受粘接胶热膨胀的作用而对三棱镜底部产生力的作用，也就避免了三棱镜的偏移，消除了热虚焦现象。
为了更清楚地说明本发明实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明实施例投影光机的立体结构示意图；
图2为本发明实施例投影光机的部分结构示意图；
图3为图2在A处的放大图；
图4为本发明实施例投影光机的部分立体结构示意图(去除三棱镜)；
图5为图4的俯视图；
图6为现有技术的圆柱形通孔的结构示意图；
图7为本发明实施例粘接胶在通孔内受力分析图；
图8为本发明实施例通孔的各尺寸和角度关系示意图。
附图标号说明：
1、本体；2、三棱镜；21、第一侧边；22、第二侧边；23、斜边；24、斜角端；3、卡槽；31、第一侧壁；32、第二侧壁；33、底壁；4、通孔；5、第一定位面；51、子定位面；6、第二定位面；7、凸台；8、圆柱形孔；9、粘接胶。
本发明目的的实现、功能特点及优点将结合实施方式，参照附图做进一步说明。
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明的一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
需要说明，本发明实施方式中所有方向性指示(诸如上、下……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
并且，本发明各个实施方式之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护 范围之内。
参见图1-图5，为表示出通孔4与三棱镜2的相对位置，图2将位于三棱镜2底部的通孔4位置表示出来。本发明提供一种投影光机，包括本体1和三棱镜2，本体1上设置有卡槽3和第一定位面5，三棱镜2包括首尾相接的第一侧边21、第二侧边22和斜边23，第二侧边22与斜边23形成斜角端24，第一侧边21与第一定位面5贴合设置，斜角端24卡接于卡槽3，本体1位于三棱镜2底面的位置设置有通孔4，通孔4内填充有粘接胶9，粘接胶9与三棱镜2粘接，通孔4的尺寸自靠近三棱镜2的一侧向远离三棱镜2的一侧呈渐扩设置。
需要说明的是，现有技术中，参照图6，通孔一般为圆柱形孔8，粘接胶9则填充在圆柱形孔8中。当投影光机的本体1温度上升后胶分子受热分子运动加剧，宏观表现为胶的体积增加和温度上升，由于粘接胶9在圆柱形内径向方向被限定，因此在竖直方向上高度增加，对三棱镜2的底面施加力的作用，使得三棱镜2位置发生偏移，从而使光学投影发生变化形成热虚焦。
而本发明的上述实施例中，第一定位面5用于对三棱镜2的第一侧边21进行定位，卡槽3用于对三棱镜2进行定位和固定。该实施例中通孔4尺寸呈变化设置，靠近三棱镜2的一端尺寸较小，而远离三棱镜2的一端尺寸较大，这样使得粘接胶9向上膨胀时会受到通孔4侧壁给的一个向下的反作用力的分力，进而阻挡粘接胶9的膨胀和抵销膨胀可能对三棱镜2产生的作用力，避免了三棱镜2受粘接胶9热膨胀的作用而对三棱镜2底部产生力的作用，也就避免了三棱镜2的偏移，消除了热虚焦现象。
为了更清楚地解释粘接胶9在通孔4内所受的力的作用，请参照图7，当通孔4为锥形孔时，粘接胶9膨胀对通孔4内壁受力模型可以等效为接触面微元在竖直和水平方向的受力分析：由作用力与反作用力关系，记通孔4内壁对胶产生的反作用力为f，在竖直方向，粘接胶9对内壁产生竖直向上的作用力，而反作用力f可分解为竖直向下的作用力fb；在水平方向，粘接胶9对内壁产生沿半径向外的作用力，而反作用力f可分解内壁对胶产生向内的作用力fa，本领域技术人员可以理解，f为fa与fb的合力。由上述分析可知，通孔4的侧壁抵消了粘接胶9竖直向上的作用力，也就抵消了粘接胶9原本对于三棱镜2的作用力，因此可以确保三棱镜2位置不发生偏移，起到消除 热虚焦现象的作用。上述粘接胶9可以为光敏胶，三棱镜2为直角三棱镜2，第一侧边21和第二侧边22相互垂直。
在一实施例中，通孔4为锥形孔。需要说明的是，本发明并不对通孔4的形状做具体地限定，只要通孔4侧壁结构的设计能够对粘接胶9产生背离三棱镜2的作用力，抵销或减小粘接胶9膨胀对三棱镜的作用力即可。例如通孔4的形状还可以是尺寸变化的截面为矩形或正方形的立方体结构、喇叭形结构或者其他不规则的结构，还可以在通孔4内壁设置锯齿形以增大侧壁对粘接胶9膨胀的阻挡作用。本实施例优选为锥形孔，加工上比较方便。具体地，参照图8，设R为下圆半径，r为上圆半径，H为光机底部主体厚度(或者说通孔4的高度)，h为虚拟高度。θ为斜边23与竖直方向夹角。而θ的大小与通孔4上下圆半径有关，由三角函数关系可得：
同时，由上述公式可知，若R和H固定不变，tanθ与r为反比例关系。结合上述分析，r越小，tanθ越大则fb越大。通孔4内壁承受更大的胶点热膨胀对三棱镜2产生的力，从而减小三棱镜2偏移。实际上，通孔4的小圆和大圆半径根据三棱镜2大小、光机本体1的厚度去设定，凡是运用了本发明的技术构思，设计的任意小圆半径、大圆半径或者θ的大小，均在本发明的保护范围之内。
在一实施例中，通孔4的数量为一个。因为光机主体内温度分布不均，多个通孔4的排布会造成不同位置胶的膨胀程度不同，引起三棱镜2偏移。当然，本实施例只是作为一个优选实施例，实际上也可以根据需要设置两个或两个以上数量的通孔4。
在一实施例中，第一定位面5包括至少两个间隔设置的子定位面51，两个子定位面51分别于第一侧边21贴合。第一定位面5可以是一整个平面，也可以包括间隔设置的子定位面51，各子定位面51均位于同一平面上，每一子定位面51均与第一侧边21贴合起到定位作用。
在一实施例中，卡槽3包括底壁33和分别连接于底壁33两侧的第一侧壁31和第二侧壁32，卡槽3的宽度自卡槽3底壁33向卡槽3的开口呈渐扩设置，且第一侧壁31与第二侧边22贴合设置。卡槽3用于固定三棱镜2，且与三棱镜2的斜角端24存在微小隙缝便于安装，为确保安装紧密，卡槽3的 第一侧壁31与三棱镜2的第二侧边22贴合确保三棱镜2不会发生移动。当然，这里说的贴合只是第一侧壁31与第二侧边22位于斜角端24的部分贴合，而不是第一侧壁31与整个第二侧边22贴合。在一具体地实施例中，第二侧壁32与斜边23平行设置。
在一实施例中，本体1上还设置有第二定位面6，第二定位面6与第一侧壁31位于同一平面上，且第二定位面6与第二侧边22贴合设置。第二定位面6同样起到定位作用，第二定位面6与第一侧壁31位于同一平面，确保第二定位面6能够与第一侧壁31一样，与第二侧边22贴合设置，这样才能起到很好的定位作用。具体地，第二定位面6和第一侧壁31分设于第二侧面两端，从两端分别对第二侧边22定位，避免第二侧边22一端受力而发生偏移。第一定位面5和第二定位面6的平面度控制在0.01±0.005mm。
在一实施例中，本体1上还设置有至少两个凸台7，至少两个凸台7的高度相同。凸台7用以起到定位和支撑作用，至少两个凸台7的高度相同，确保三棱镜2的底面平行放置，凸台7面的平面度控制在0.01±0.005mm。
以上仅为本发明的可选实施例，并非因此限制本发明的专利范围，凡是在本发明的技术构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围。
Claims (10)
- 一种投影光机，其特征在于，包括本体和三棱镜，所述本体上设置有卡槽和第一定位面，所述三棱镜包括首尾相接的第一侧边、第二侧边和斜边，所述第二侧边与所述斜边形成斜角端，所述第一侧边与所述第一定位面贴合设置，所述斜角端卡接于所述卡槽，所述本体位于所述三棱镜底面的位置设置有通孔，所述通孔内填充有粘接胶，所述粘接胶与所述三棱镜粘接，所述通孔的尺寸自靠近所述三棱镜的一侧向远离所述三棱镜的一侧呈渐扩设置。
- 根据权利要求1所述的投影光机，其特征在于，所述通孔为锥形孔。
- 根据权利要求1所述的投影光机，其特征在于，所述通孔的数量为一个。
- 根据权利要求1所述的投影光机，其特征在于，所述第一定位面包括至少两个间隔设置的子定位面，两个所述子定位面分别于所述第一侧边贴合。
- 根据权利要求1所述的投影光机，其特征在于，所述卡槽包括底壁和分别连接于所述底壁两侧的第一侧壁和第二侧壁，所述卡槽的宽度自所述底壁向所述卡槽开口呈渐扩设置，且所述第一侧壁与所述第二侧边贴合设置。
- 根据权利要求5所述的投影光机，其特征在于，所述第二侧壁与所述斜边平行设置。
- 根据权利要求5所述的投影光机，其特征在于，所述本体上还设置有第二定位面，所述第二定位面与所述第一侧壁位于同一平面上，且所述第二定位面与所述第二侧边贴合设置。
- 根据权利要求7所述的投影光机，其特征在于，所述第二定位面和所述第一侧壁分设于所述第二侧面两端。
- 根据权利要求1～8中任一项所述的投影光机，其特征在于，所述三棱镜为直角三棱镜，所述第一侧边和所述第二侧边相互垂直。
- 根据权利要求1～8中任一项所述的投影光机，其特征在于，所述本体上还设置有至少两个凸台，至少两个所述凸台的高度相同。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003026430A (ja) * | 2001-07-11 | 2003-01-29 | Matsushita Electric Ind Co Ltd | 高精度なプリズム成形用型とその製造方法、及び高精度なプリズムの製造方法 |
| TW201009476A (en) * | 2008-08-22 | 2010-03-01 | Hon Hai Prec Ind Co Ltd | Optical engine apparatus |
| CN102087384A (zh) * | 2009-12-07 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | 光纤耦合连接器 |
| CN113281875A (zh) * | 2021-02-07 | 2021-08-20 | 深圳市安华光电技术有限公司 | 光机及投影仪 |
| CN214375507U (zh) * | 2021-02-07 | 2021-10-08 | 深圳市安华光电技术有限公司 | 棱镜的定位结构、光机及投影仪 |
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| WO2018035944A1 (zh) * | 2016-08-24 | 2018-03-01 | 宁波舜宇光电信息有限公司 | 具有镜头和棱镜装置的潜望式摄像模组 |
| CN107144940B (zh) * | 2017-06-27 | 2023-06-27 | 深圳市点睛创视技术有限公司 | 一种光机的三棱镜结构 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003026430A (ja) * | 2001-07-11 | 2003-01-29 | Matsushita Electric Ind Co Ltd | 高精度なプリズム成形用型とその製造方法、及び高精度なプリズムの製造方法 |
| TW201009476A (en) * | 2008-08-22 | 2010-03-01 | Hon Hai Prec Ind Co Ltd | Optical engine apparatus |
| CN102087384A (zh) * | 2009-12-07 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | 光纤耦合连接器 |
| CN113281875A (zh) * | 2021-02-07 | 2021-08-20 | 深圳市安华光电技术有限公司 | 光机及投影仪 |
| CN214375507U (zh) * | 2021-02-07 | 2021-10-08 | 深圳市安华光电技术有限公司 | 棱镜的定位结构、光机及投影仪 |
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