技术领域technical field
本发明涉及显示领域，尤其涉及立体显示领域。The invention relates to the field of display, in particular to the field of stereoscopic display.
背景技术Background technique
“3D”里的“D”，是英文单词Dimension(线度、维)的首字母。3D指的就是三维空间。与普通2D画面显示相比，3D技术可以使画面变得立体逼真，图像不再局限于屏幕平面，仿佛能够走出屏幕外面，让观众有身临其境的感觉。The "D" in "3D" is the first letter of the English word Dimension. 3D refers to three-dimensional space. Compared with ordinary 2D picture display, 3D technology can make the picture three-dimensional and realistic, and the image is no longer limited to the screen plane, as if it can go out of the screen, so that the audience has an immersive feeling.
尽管3D显示技术分类繁多，不过最基本的原理是相似的，就是利用人眼左右分别接收不同画面，然后大脑经过对图像信息进行叠加重生，构成一个具有前—后、上—下、左—右、远—近等立体方向效果的影像。Although there are many types of 3D display technologies, the basic principles are similar, that is, the left and right sides of the human eye are used to receive different pictures, and then the brain superimposes and regenerates the image information to form a front-back, up-down, left-right display. , far-near and other stereoscopic effects.
在眼镜式3D技术中，我们又可以细分出三种主要的类型：色差式、偏光式和主动快门式。也就是平常所说的色分法、光分法和时分法。当然现今很多裸眼的3D技术也都有实际产品，如lens技术，barrier技术等。In glasses-based 3D technology, we can subdivide three main types: chromatic aberration, polarized light and active shutter. That is commonly referred to as color division, light division and time division. Of course, many naked-eye 3D technologies also have actual products, such as lens technology and barrier technology.
相对于传统的电视机而言，3D电视能够呈现出来的图像不再局限于平面，画面大小也不再受屏幕大小的约束，观众会仿佛看到海豚在自己身边优雅游动，鸟儿从头顶轻轻掠过，足球朝面门飞速袭来……这些场景都是以往平面成像电视难以表达出来的。Compared with traditional TV sets, the images that 3D TVs can display are no longer limited to planes, and the size of the screen is no longer limited by the size of the screen. The audience will seem to see dolphins swimming gracefully beside them, and birds flying from above their heads. Passing by lightly, the football hits the front door quickly... These scenes are difficult to express in the previous flat-screen imaging TV.
现有的相对传统的3D显示技术，往往都需要观众佩戴眼镜进行观看。操作和使用都不太方便。Existing relatively traditional 3D display technologies often require viewers to wear glasses to watch. It is not very convenient to operate and use.
现在虽然有一些裸眼3D技术，但是技术相对不成熟，没有得到广泛普及。现有的裸眼3D技术大都是应用于液晶显示器。至今未发现应用于投影显示器的裸眼3D技术。Although there are some glasses-free 3D technologies, they are relatively immature and have not been widely popularized. Most of the existing glasses-free 3D technologies are applied to liquid crystal displays. No glasses-free 3D technology applied to projection displays has been found so far.
指向光源（Directional Backlight）3D技术投入较大精力的主要是3M公司，指向光源（Directional Backlight）3D技术，中主要包括指向光源3D光学机构，和所搭配的两组LED，两组LED和指向光源3D光学机构配合快速反应的LCD面板和驱动方法，让3D内容以排序（sequential）方式进入观看者的左右眼互换影像产生视差，进而让人眼感受到3D三维效果。但是这种技术还不成熟，且仅仅被应用于了液晶显示中。没有得到广泛应用。Directional Backlight 3D technology is mainly invested by 3M company. Directional Backlight 3D technology mainly includes 3D optical mechanism of directional light source, and two sets of LEDs, two sets of LEDs and directional light source. The 3D optical mechanism cooperates with the fast-response LCD panel and driving method, so that the 3D content enters the viewer's left and right eyes in a sequential manner to exchange images to produce parallax, and then makes people feel the 3D three-dimensional effect. But this technology is immature and has only been applied to liquid crystal displays. Not widely used.
发明内容Contents of the invention
本发明的目的在于提供一种指向光源裸眼3D投影系统，解决以上技术问题。The purpose of the present invention is to provide a naked-eye 3D projection system with a pointing light source to solve the above technical problems.
本发明的目的还在于提供一种指向光源投影屏幕，解决以上技术问题。The object of the present invention is also to provide a projection screen with a pointing light source to solve the above technical problems.
本发明所解决的技术问题可以采用以下技术方案来实现：The technical problem solved by the present invention can adopt following technical scheme to realize:
指向光源裸眼3D投影系统，包括投影系统、投影屏幕，其特征在于，包括至少两个投影系统，所述投影系统设有投影镜头；A naked-eye 3D projection system with a pointing light source, including a projection system and a projection screen, is characterized in that it includes at least two projection systems, and the projection system is provided with a projection lens;
两个所述投影系统的两个所述投影镜头位于所述投影屏幕后方，且分别自投影屏幕左侧方向和投影屏幕右侧方向，向所述投影屏幕投影，且投影区域存在重叠；The two projection lenses of the two projection systems are located behind the projection screen, and project to the projection screen from the left direction of the projection screen and the right direction of the projection screen respectively, and the projection areas overlap;
自投影屏幕左侧方向投影的投影系统称为，左投影系统；自投影屏幕右侧方向投影的投影系统称为，右投影系统；The projection system that projects from the left side of the projection screen is called the left projection system; the projection system that projects from the right side of the projection screen is called the right projection system;
所述投影屏幕采用指向光源投影屏幕，所述指向光源投影屏幕包括一用于成像的成像层，所述成像层前方设有一层指向光源3D光学机构。The projection screen adopts a pointing light source projection screen, and the pointing light source projection screen includes an imaging layer for imaging, and a layer of pointing light source 3D optical mechanism is arranged in front of the imaging layer.
还包括一微型处理器系统，所述微型处理器系统与至少两个所述投影系统通信连接。Also included is a microprocessor system communicatively coupled to at least two of said projection systems.
上述设计中，用两个投影系统中的投影镜头投射出的光线，取代了传统的3M公司的指向光源（Directional Backlight）3D技术中使用的两组LED。从而使投影系统实现优良的裸眼3D显示。In the above design, the light projected by the projection lenses in the two projection systems replaces the two sets of LEDs used in the traditional 3M Directional Backlight 3D technology. Therefore, the projection system can realize excellent naked-eye 3D display.
另外，本发明中相对于指向光源（Directional Backlight）3D技术减少了一套定向反光系统。从而有效简化了系统结构。In addition, compared with the Directional Backlight 3D technology, the present invention reduces a set of directional reflective systems. Thus effectively simplifying the system structure.
再者，指向光源（Directional Backlight）3D技术中是将用于成像的LCD屏，至于指向光源3D光学机构前方，通过指向光源3D光学机构调整入射到LCD的光线。而本发明中，指向光源投影屏幕是将用于成像的成像层置于指向光源3D光学机构后方，首先成像后，再通过指向光源3D光学机构进行光线调整。因此本发明与3M公司的指向光源（DirectionalBacklight）3D技术结构上有实质性区别。Furthermore, in the 3D technology of directional backlight, the LCD screen will be used for imaging. As for the 3D optical mechanism of the directional backlight, the light incident on the LCD is adjusted through the 3D optical mechanism of the directional backlight. In the present invention, however, the projection screen with pointing light source places the imaging layer used for imaging behind the 3D optical mechanism of pointing light source. Therefore, the present invention is substantially different from the 3D technical structure of 3M's directional light source (Directional Backlight).
通过上述设计，利用人眼左右分别接收不同画面，然后大脑经过对图像信息进行叠加重生，构成一个具有前—后、上—下、左—右、远—近等立体方向效果的影像。通过上述设计可以实现具有裸眼3D显示效果的投影系统。Through the above design, the left and right sides of the human eye are used to receive different images, and then the brain superimposes and regenerates the image information to form an image with three-dimensional effects such as front-back, up-down, left-right, and far-near. Through the above design, a projection system with naked-eye 3D display effect can be realized.
所述微型处理器系统控制两个所述投影系统，交替投影。通过对两个投影系统中投影的画面进行有机搭配。显示出3D画面。The microprocessor system controls two of the projection systems, alternately projecting. By organically matching the images projected in the two projection systems. A 3D screen is displayed.
指向光源投影屏幕，其特征在于，包括一屏幕基体，所述屏幕基体包括一透明基体，所述透明基体包括至少前层和后层，所述后层设有成像层，所述前层设有指向光源3D光学机构。The projection screen pointing to the light source is characterized in that it includes a screen base, the screen base includes a transparent base, and the transparent base includes at least a front layer and a rear layer, the rear layer is provided with an imaging layer, and the front layer is provided with Pointing light source 3D optical mechanism.
所述屏幕基体可以采用玻璃材质、钢化玻璃材质、亚克力材质等透明材质中的至少一种。可以是上述材质的复合结构。The screen base may be made of at least one transparent material such as glass, tempered glass, and acrylic. It can be a composite structure of the above materials.
所述成像层优选为位于所述屏幕基体后层后方的成像屏幕、成像贴膜或者磨砂层中的至少一种。可以是上述结构的复合结构。允许所述成像层后方再设置有其他辅助光学器件，比如附有偏振膜等。The imaging layer is preferably at least one of an imaging screen, an imaging film or a frosted layer located behind the rear layer of the screen base. It may be a composite structure of the above structures. It is allowed to arrange other auxiliary optical devices behind the imaging layer, such as attaching a polarizing film and the like.
所述指向光源3D光学机构包括一夹角反射阵列和一汇聚透镜阵列；所述夹角反射阵列包括至少100个夹角反射模块，所述夹角反射模块包括左右设置且成角度的透光的反射面；左侧的反射面称为左反射面，右侧的反射面称为右反射面；两个反射面的夹角位于后方，反射方向斜朝向前方；至少100个夹角反射模块依次顺序排列，构成所述夹角反射阵列；The 3D optical mechanism of the pointing light source includes an angle reflection array and a converging lens array; Reflective surface; the reflective surface on the left is called the left reflective surface, and the reflective surface on the right is called the right reflective surface; the angle between the two reflective surfaces is located at the rear, and the reflection direction is obliquely toward the front; at least 100 angle reflection modules are in order arranged to form the angle reflective array;
所述汇聚透镜阵列包括至少100个汇聚透镜，位于所述夹角反射模块前方；The converging lens array includes at least 100 converging lenses, located in front of the angle reflection module;
所述成像层呈半透明状态，一侧的所述投影系统投射的光线经过成像层形成像点，所述像点的光线穿过一所述夹角反射模块的一个反射面后，经另一反射面反射，到达前方的所述汇聚透镜，由所述汇聚透镜转化为定向光线。通过产生定向光线，进行定向传输，使特定的眼睛接收到设定的光信号，产生视觉效果。The imaging layer is in a translucent state, and the light projected by the projection system on one side passes through the imaging layer to form an image point. The reflective surface is reflected, reaches the converging lens in front, and is converted into directional light by the converging lens. By generating directional light and carrying out directional transmission, specific eyes receive the set light signal to produce visual effects.
比如，左投影系统投射的光线经过成像层形成像点。所述像点的光线穿过一所述夹角反射模块的左反射面后，经右反射面反射，到达前方的所述汇聚透镜，由所述汇聚透镜转化为定向光线。通过产生定向光线，进行定向传输，使特定的眼睛接收到设定的光信号，产生视觉效果。For example, the light projected by the left projection system passes through the imaging layer to form image points. The light of the image point passes through the left reflective surface of one of the included angle reflection modules, is reflected by the right reflective surface, reaches the converging lens in front, and is converted into directional light by the converging lens. By generating directional light and carrying out directional transmission, specific eyes receive the set light signal to produce visual effects.
两个所述投影系统的两个所述投影镜头向所述指向光源投影屏幕投影，且投影区域在所述指向光源投影屏幕上的部分完全重叠。以实现全屏效果的3D显示。The two projection lenses of the two projection systems project onto the directional light source projection screen, and the projection areas on the directional light source projection screen completely overlap each other. In order to realize the 3D display of full-screen effect.
所述夹角反射模块的左反射面和右反射面之间的夹角为锐角。优选，左反射面和右反射面与所述成像层之间的角度相等。The angle between the left reflection surface and the right reflection surface of the angle reflection module is an acute angle. Preferably, the angles between the left reflective surface and the right reflective surface and the imaging layer are equal.
左反射面和右反射面之间的夹角的顶部距离所述成像层的距离小于所述汇聚透镜焦距的四分之一。同时优选，大于所述汇聚透镜焦距的二十分之一。The distance between the top of the angle between the left reflective surface and the right reflective surface and the imaging layer is less than a quarter of the focal length of the converging lens. At the same time, preferably, it is greater than one-twentieth of the focal length of the converging lens.
优选，所述夹角反射模块与所述汇聚透镜的数量相同。Preferably, the number of the included angle reflection modules is the same as that of the converging lenses.
优选，左反射面和右反射面之间的夹角为锐角小于等于45度。另外，锐角大于等于15度。以便保证成像效果。Preferably, the angle between the left reflective surface and the right reflective surface is an acute angle less than or equal to 45 degrees. In addition, the acute angle is greater than or equal to 15 degrees. In order to ensure the imaging effect.
所述汇聚透镜的宽度，大于等于一所述夹角反射模块中，所述左反射面和右反射面上方之间的宽度。以便于结构排布。The width of the converging lens is greater than or equal to the width above the left reflective surface and the right reflective surface in the included angle reflective module. to facilitate structural arrangement.
优选，所述汇聚透镜为条状的汇聚透镜，所述夹角反射模块为条状，即所述左反射面和右反射面也为条状。Preferably, the converging lens is a strip-shaped converging lens, and the angle reflection module is strip-shaped, that is, the left reflective surface and the right reflective surface are also strip-shaped.
条状的所述汇聚透镜的长度方向与所述夹角反射模块的长度方向平行。The length direction of the strip-shaped converging lens is parallel to the length direction of the angle reflection module.
一所述汇聚透镜的宽度跨越两个所述夹角反射模块，且位于所述夹角反射模块前方。A width of the converging lens spans two of the angle reflection modules and is located in front of the angle reflection modules.
两个相邻的所述夹角反射模块，其中一个的左反射面与另一个的右反射面连接，形成一连接线。所述连接线处位于所述汇聚透镜的主光轴上。For two adjacent included angle reflective modules, the left reflective surface of one is connected to the right reflective surface of the other to form a connecting line. The connecting line is located on the main optical axis of the converging lens.
或者，所述汇聚透镜位于所述夹角反射模块的正上方。Alternatively, the converging lens is located directly above the angle reflection module.
条状的所述汇聚透镜的长度方向与所述夹角反射模块的长度方向不平行。The length direction of the strip-shaped converging lens is not parallel to the length direction of the angle reflection module.
条状的所述汇聚透镜的长度方向与所述夹角反射模块的长度方向夹角大于等于10度，小于等于45度。The angle between the longitudinal direction of the strip-shaped converging lens and the longitudinal direction of the angled reflection module is greater than or equal to 10 degrees and less than or equal to 45 degrees.
两个相邻的所述夹角反射模块，其中一个的左反射面与另一个的右反射面连接，形成一连接线，所述连接线与所述汇聚透镜顶部的距离，小于汇聚透镜焦距的二分之一，大于会聚透镜焦距的七分之一。以保证光路畅通。For two adjacent angle reflection modules, the left reflective surface of one is connected to the right reflective surface of the other to form a connecting line, and the distance between the connecting line and the top of the converging lens is less than the focal length of the converging lens One-half, greater than one-seventh of the focal length of the converging lens. To ensure smooth light path.
所述汇聚透镜的焦平面位于距离所述成像层不大于4mm的位置。以便于使成像的像点上的光线，经过指向光源3D光学机构后，尽量平行出射，进而保证3D成像质量。The focal plane of the converging lens is located no more than 4 mm away from the imaging layer. In order to make the light on the imaging point pass through the 3D optical mechanism pointing to the light source, and exit as parallel as possible, thereby ensuring the 3D imaging quality.
所述汇聚透镜的焦点位于两个所述夹角反射模块之间。以优化成像质量。The focus of the converging lens is located between the two angle reflection modules. to optimize image quality.
所述反射面两侧的均为透明介质，且两侧的透明介质折射率不同。进而保证在透光的前提下，实现反光。Both sides of the reflective surface are transparent media, and the transparent media on both sides have different refractive indices. In order to ensure the reflection of light under the premise of light transmission.
通过上述设计主要光路关系为，左投影系统投出的光线成像后，主要穿过左反射面，到达右反射面，经反射后到达汇聚透镜，经过汇聚透镜后接近平行射出。右投影系统投出的光线成像后，主要穿过右反射面，到达左反射面，经反射后到达汇聚透镜，经过汇聚透镜后接近平行射出。通过左投影系统和右投影系统交替点亮，从而实现裸眼3D投影。The main optical path relationship through the above design is that after the light projected by the left projection system is imaged, it mainly passes through the left reflective surface, reaches the right reflective surface, reaches the converging lens after reflection, and is nearly parallel to the exit after passing through the converging lens. After the light projected by the right projection system is imaged, it mainly passes through the right reflective surface, reaches the left reflective surface, reaches the converging lens after reflection, and is nearly parallel to the shot after passing through the converging lens. Naked-eye 3D projection is realized by alternately lighting up the left projection system and the right projection system.
所述夹角反射阵列的左反射面和右反射面均为条状的反射面。且为竖直设置。Both the left reflective surface and the right reflective surface of the included angle reflective array are strip-shaped reflective surfaces. and set vertically.
所述汇聚透镜阵列中的汇聚透镜为条状的汇聚透镜。且为竖直设置。The converging lenses in the converging lens array are strip-shaped converging lenses. and set vertically.
所述夹角反射阵列和所述汇聚透镜阵列由同种材料一体化制成。The angle reflective array and the converging lens array are integrally made of the same material.
所述夹角反射模块的反射面前方为玻璃材质、钢化玻璃材质、亚克力材质等透明材质中的至少一种。The front of the reflection surface of the included angle reflection module is at least one of transparent materials such as glass material, tempered glass material, and acrylic material.
层指向光源3D光学机构可以为板结构、片结构或者膜结构。The layer-directed light source 3D optical mechanism can be a plate structure, a sheet structure or a film structure.
所述层指向光源3D光学机构生成在一4mm以上厚度的透明基板上。The layer-directed light source 3D optical mechanism is produced on a transparent substrate with a thickness of more than 4mm.
所述层指向光源3D光学机构生成在一1～4mm以上厚度的透明基片上。The layer-directed light source 3D optical mechanism is produced on a transparent substrate with a thickness of 1-4 mm or more.
所述层指向光源3D光学机构生成在一小于1mm厚度的透明膜上。The layer-directed light source 3D optical mechanism is produced on a transparent film with a thickness of less than 1 mm.
所述反射面后方优选为空气。Air is preferably behind the reflective surface.
所述成像层优选为位于所述屏幕基体后层后方的成像屏幕、成像贴膜或者磨砂层中的至少一种。可以是上述结构的复合结构。允许所述成像层后方再设置有其他辅助光学器件，比如附有偏振膜等。The imaging layer is preferably at least one of an imaging screen, an imaging film or a frosted layer located behind the rear layer of the screen base. It may be a composite structure of the above structures. It is allowed to arrange other auxiliary optical devices behind the imaging layer, such as attaching a polarizing film and the like.
附图说明Description of drawings
图1为本发明的指向光源裸眼3D投影系统示意图；Fig. 1 is a schematic diagram of a directional light source naked-eye 3D projection system of the present invention;
图2为本发明的一种指向光源裸眼3D投影系统示意图。FIG. 2 is a schematic diagram of a directional light source naked-eye 3D projection system according to the present invention.
具体实施方式Detailed ways
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示进一步阐述本发明。In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.
参照图1、图2，指向光源裸眼3D投影系统，包括投影系统、投影屏幕，以及一与投影系统连接的微型处理器系统1，包括至少两个投影系统，投影系统设有投影镜头，且至少两个投影系统连接微型处理器系统1。两个投影系统的两个投影镜头位于投影屏幕后方，且分别自投影屏幕左侧方向和投影屏幕右侧方向，向投影屏幕投影，且投影区域存在重叠。自投影屏幕左侧方向投影的投影系统称为，左投影系统31。自投影屏幕右侧方向投影的投影系统称为，右投影系统32。投影屏幕采用指向光源投影屏幕2，指向光源投影屏幕2包括一用于成像的成像层22，成像层22前方设有一层指向光源3D光学机构21。With reference to Fig. 1, Fig. 2, pointing light source naked-eye 3D projection system, comprises projection system, projection screen, and a microprocessor system 1 connected with projection system, comprises at least two projection systems, and projection system is provided with projection lens, and at least The two projection systems are connected to the microprocessor system 1 . The two projection lenses of the two projection systems are located behind the projection screen, and project to the projection screen from the left direction of the projection screen and the right direction of the projection screen respectively, and the projection areas overlap. The projection system that projects from the left side of the projection screen is called the left projection system 31 . The projection system that projects from the right side of the projection screen is called the right projection system 32 . The projection screen adopts a pointing light source projection screen 2, and the pointing light source projection screen 2 includes an imaging layer 22 for imaging, and a layer of pointing light source 3D optical mechanism 21 is arranged in front of the imaging layer 22.
上述设计中，用两个投影系统中的投影镜头投射出的光线，取代了传统的3M公司的指向光源（Directional Backlight）3D技术中使用的两组LED。从而使投影系统实现优良的裸眼3D显示。另外，本发明中相对于指向光源（Directional Backlight）3D技术减少了一套定向反光系统。从而有效简化了系统结构。再者，指向光源（Directional Backlight）3D技术中是将用于成像的LCD屏，至于指向光源3D光学机构21前方，通过指向光源3D光学机构21调整入射到LCD的光线。而本发明中，指向光源投影屏幕2是将用于成像的成像层22置于指向光源3D光学机构21后方，首先成像后，再通过指向光源3D光学机构21进行光线调整。因此本发明与3M公司的指向光源（Directional Backlight）3D技术结构上有实质性区别。In the above design, the light projected by the projection lenses in the two projection systems replaces the two sets of LEDs used in the traditional 3M Directional Backlight 3D technology. Therefore, the projection system can realize excellent naked-eye 3D display. In addition, compared with the Directional Backlight 3D technology, the present invention reduces a set of directional reflective systems. Thus effectively simplifying the system structure. Furthermore, in the 3D technology of directional backlight, the LCD screen will be used for imaging. As for the 3D optical mechanism 21 in front of the directional backlight, the light incident on the LCD is adjusted through the 3D optical mechanism 21 of the directional backlight. In the present invention, the pointing light source projection screen 2 places the imaging layer 22 used for imaging behind the pointing light source 3D optical mechanism 21 , and after imaging, the light is adjusted through the pointing light source 3D optical mechanism 21 . Therefore, the present invention is substantially different from 3M's Directional Backlight 3D technical structure.
通过上述设计，利用人眼左右分别接收不同画面，然后大脑经过对图像信息进行叠加重生，构成一个具有前—后、上—下、左—右、远—近等立体方向效果的影像。通过上述设计可以实现具有裸眼3D显示效果的投影系统。微型处理器系统1控制两个投影系统，交替投影。通过对两个投影系统中投影的画面进行有机搭配。显示出3D画面。Through the above design, the left and right sides of the human eye are used to receive different images, and then the brain superimposes and regenerates the image information to form an image with three-dimensional effects such as front-back, up-down, left-right, and far-near. Through the above design, a projection system with naked-eye 3D display effect can be realized. Microprocessor system 1 controls two projection systems, alternately projecting. By organically matching the images projected in the two projection systems. A 3D screen is displayed.
指向光源投影屏幕2，包括一屏幕基体，屏幕基体包括一透明基体24，透明基体24包括至少前层和后层，后层设有成像层22，前层设有指向光源3D光学机构21。屏幕基体可以采用玻璃材质、钢化玻璃材质、亚克力材质等透明材质中的至少一种。可以是上述材质的复合结构。The projection screen 2 pointing to the light source includes a screen base, and the screen base includes a transparent base 24. The transparent base 24 includes at least a front layer and a back layer. The screen substrate may be made of at least one transparent material such as glass, tempered glass, and acrylic. It can be a composite structure of the above materials.
成像层22优选为位于屏幕基体后层后方的成像屏幕、成像贴膜或者磨砂层中的至少一种。可以是上述结构的复合结构。允许成像层22后方再设置有其他辅助光学器件，比如附有偏振膜等。The imaging layer 22 is preferably at least one of an imaging screen, an imaging film or a frosted layer located behind the rear layer of the screen base. It may be a composite structure of the above structures. It is allowed to arrange other auxiliary optical devices behind the imaging layer 22, such as attaching a polarizing film and the like.
指向光源3D光学机构21包括一夹角反射阵列4和一汇聚透镜阵列5。夹角反射阵列4包括至少100个夹角反射模块，夹角反射模块包括左右设置且成角度的透光的反射面。左侧的反射面称为左反射面41，右侧的反射面称为右反射面42；两个反射面的夹角位于后方，反射方向斜朝向前方；至少100个夹角反射模块依次顺序排列，构成夹角反射阵列4。The pointing light source 3D optical mechanism 21 includes an angle reflective array 4 and a converging lens array 5 . The angle reflective array 4 includes at least 100 angle reflective modules, and the angle reflective modules include light-transmitting reflective surfaces arranged left and right and angled. The reflective surface on the left is called the left reflective surface 41, and the reflective surface on the right is called the right reflective surface 42; the angle between the two reflective surfaces is located at the rear, and the reflection direction is obliquely toward the front; at least 100 angle reflective modules are arranged in sequence , constituting the angle reflective array 4 .
汇聚透镜阵列5包括至少100个汇聚透镜，位于夹角反射模块前方。成像层22呈半透明状态，一侧的投影系统投射的光线经过成像层22形成像点，像点的光线穿过一夹角反射模块的一个反射面后，经另一反射面反射，到达前方的汇聚透镜，由汇聚透镜转化为定向光线。通过产生定向光线，进行定向传输，使特定的眼睛接收到设定的光信号，产生视觉效果。两个投影系统的两个投影镜头向指向光源投影屏幕2投影，且投影区域在指向光源投影屏幕2上的部分完全重叠。以实现全屏效果的3D显示。The converging lens array 5 includes at least 100 converging lenses and is located in front of the angle reflection module. The imaging layer 22 is in a translucent state, and the light projected by the projection system on one side passes through the imaging layer 22 to form an image point, and the light of the image point passes through one reflective surface of an angle reflection module, is reflected by the other reflective surface, and reaches the front The converging lens of is converted into directional light by the converging lens. By generating directional light and carrying out directional transmission, specific eyes receive the set light signal to produce visual effects. The two projection lenses of the two projection systems project toward the projection screen 2 pointing to the light source, and the projection areas on the projection screen 2 pointing to the light source completely overlap each other. In order to realize the 3D display of full-screen effect.
比如，左投影系统31投射的光线经过成像层22形成像点6。像点6的光线穿过一夹角反射模块的左反射面41后，经右反射面42反射，到达前方的汇聚透镜，由汇聚透镜转化为定向光线。通过产生定向光线，进行定向传输，使特定的眼睛接收到设定的光信号，产生视觉效果。For example, the light projected by the left projection system 31 passes through the imaging layer 22 to form an image point 6 . The light from image point 6 passes through the left reflective surface 41 of an included angle reflective module, is reflected by the right reflective surface 42, reaches the converging lens in front, and is converted into directional light by the converging lens. By generating directional light and carrying out directional transmission, specific eyes receive the set light signal to produce visual effects.
夹角反射模块的左反射面41和右反射面42之间的夹角为锐角。优选，左反射面41和右反射面42与成像层22之间的角度相等。左反射面41和右反射面42之间的夹角的顶部距离成像层22的距离小于汇聚透镜焦距的四分之一。同时优选，大于汇聚透镜焦距的二十分之一。优选，夹角反射模块与汇聚透镜的数量相同。汇聚透镜的宽度，大于等于一夹角反射模块中，左反射面41和右反射面42上方之间的宽度。以便于结构排布。优选，汇聚透镜为条状的汇聚透镜，夹角反射模块为条状，即左反射面41和右反射面42也为条状。优选，左反射面41和右反射面42之间的夹角为锐角小于等于45度。另外，锐角大于等于15度。以便保证成像效果。The angle between the left reflection surface 41 and the right reflection surface 42 of the angle reflection module is an acute angle. Preferably, the angles between the left reflective surface 41 and the right reflective surface 42 and the imaging layer 22 are equal. The distance between the top of the angle between the left reflective surface 41 and the right reflective surface 42 and the imaging layer 22 is less than a quarter of the focal length of the converging lens. At the same time, preferably, it is greater than one-twentieth of the focal length of the converging lens. Preferably, the number of the included angle reflection modules is the same as that of the converging lenses. The width of the converging lens is greater than or equal to the width between the top of the left reflective surface 41 and the right reflective surface 42 in an included angle reflective module. to facilitate structural arrangement. Preferably, the converging lens is a strip-shaped converging lens, and the included angle reflection module is strip-shaped, that is, the left reflective surface 41 and the right reflective surface 42 are also strip-shaped. Preferably, the included angle between the left reflective surface 41 and the right reflective surface 42 is an acute angle less than or equal to 45 degrees. In addition, the acute angle is greater than or equal to 15 degrees. In order to ensure the imaging effect.
两个相邻的夹角反射模块，其中一个的左反射面41与另一个的右反射面42连接，形成一连接线，连接线与汇聚透镜顶部的距离，小于汇聚透镜焦距的二分之一，大于会聚透镜焦距的七分之一。以保证光路畅通。For two adjacent angle reflection modules, the left reflection surface 41 of one of them is connected to the right reflection surface 42 of the other to form a connecting line, and the distance between the connecting line and the top of the converging lens is less than 1/2 of the focal length of the converging lens , greater than one-seventh of the focal length of the converging lens. To ensure smooth light path.
汇聚透镜的焦平面位于距离成像层22不大于4mm的位置。以便于使成像的像点上的光线，经过指向光源3D光学机构21后，尽量平行出射，进而保证3D成像质量。汇聚透镜的焦点位于两个夹角反射模块之间。以优化成像质量。反射面两侧的均为透明介质，且两侧的透明介质折射率不同。进而保证在透光的前提下，实现反光。The focal plane of the converging lens is located no greater than 4 mm away from the imaging layer 22 . In order to make the light on the imaging point pass through the 3D optical mechanism 21 pointing to the light source, and exit as parallel as possible, thereby ensuring the 3D imaging quality. The focal point of the converging lens is located between the two angle reflective modules. to optimize image quality. Both sides of the reflective surface are transparent media, and the refractive indices of the transparent media on both sides are different. In order to ensure the reflection of light under the premise of light transmission.
通过上述设计主要光路关系为，左投影系统31投出的光线成像后，主要穿过左反射面41，到达右反射面42，经反射后到达汇聚透镜，经过汇聚透镜后接近平行射出。右投影系统32投出的光线成像后，主要穿过右反射面42，到达左反射面41，经反射后到达汇聚透镜，经过汇聚透镜后接近平行射出。通过左投影系统31和右投影系统32交替点亮，从而实现裸眼3D投影。The main optical path relationship through the above design is that after the light projected by the left projection system 31 is imaged, it mainly passes through the left reflective surface 41, reaches the right reflective surface 42, reaches the converging lens after reflection, and is nearly parallel to the exit after passing through the converging lens. After the light projected by the right projection system 32 forms an image, it mainly passes through the right reflective surface 42, reaches the left reflective surface 41, and reaches the converging lens after being reflected, and then exits in a nearly parallel manner after passing through the converging lens. The left projection system 31 and the right projection system 32 are turned on alternately, thereby realizing naked-eye 3D projection.
夹角反射阵列4的左反射面41和右反射面42均为条状的反射面。且为竖直设置。以适应人眼左右分布的位置关系。汇聚透镜阵列5中的汇聚透镜为条状的汇聚透镜。且为竖直设置或倾斜设置。Both the left reflective surface 41 and the right reflective surface 42 of the angled reflective array 4 are strip-shaped reflective surfaces. and set vertically. To adapt to the positional relationship between the left and right distribution of human eyes. The converging lenses in the converging lens array 5 are strip-shaped converging lenses. And it can be installed vertically or inclined.
夹角反射阵列4和汇聚透镜阵列5由同种材料一体化制成，材料可以为玻璃材质、钢化玻璃材质、亚克力材质等透明材质中的至少一种。反射面后方优选为空气。层指向光源3D光学机构21可以为板结构、片结构或者膜结构。The angle reflective array 4 and the converging lens array 5 are integrally made of the same material, and the material may be at least one of transparent materials such as glass material, tempered glass material, and acrylic material. Air is preferably behind the reflective surface. The layer-directed light source 3D optical mechanism 21 can be a plate structure, a sheet structure or a film structure.
层指向光源3D光学机构21生成在一4mm以上厚度的透明基板上；或，层指向光源3D光学机构21生成在一1～4mm以上厚度的透明基片上；或，层指向光源3D光学机构21生成在一小于1mm厚度的透明膜上。The layer-pointing light source 3D optical mechanism 21 is generated on a transparent substrate with a thickness of more than 4 mm; or, the layer-pointing light source 3D optical mechanism 21 is generated on a transparent substrate with a thickness of 1-4 mm; or, the layer-pointing light source 3D optical mechanism 21 is generated On a transparent film less than 1mm thick.
成像层22优选为位于屏幕基体后层后方的成像屏幕、成像贴膜或者磨砂层中的至少一种。可以是上述结构的复合结构。允许成像层22后方再设置有其他辅助光学器件，比如附有偏振膜等。The imaging layer 22 is preferably at least one of an imaging screen, an imaging film or a frosted layer located behind the rear layer of the screen base. It may be a composite structure of the above structures. It is allowed to arrange other auxiliary optical devices behind the imaging layer 22, such as attaching a polarizing film and the like.
具体实施一：Specific implementation one:
两个相邻的夹角反射模块，其中一个的左反射面41与另一个的右反射面42连接，形成一连接线。条状的汇聚透镜的长度方向与夹角反射模块的长度方向平行。For two adjacent angle reflective modules, the left reflective surface 41 of one is connected to the right reflective surface 42 of the other to form a connecting line. The length direction of the strip-shaped converging lens is parallel to the length direction of the angle reflection module.
可以是，汇聚透镜的宽度跨越两个夹角反射模块，且位于夹角反射模块前方。连接线处位于汇聚透镜的主光轴上。It may be that the width of the converging lens spans two angle reflection modules and is located in front of the angle reflection modules. The connecting line is located on the main optical axis of the converging lens.
也可以是，汇聚透镜位于夹角反射模块的正上方，条状的汇聚透镜的长度方向与夹角反射模块的长度方向平行。Alternatively, the converging lens is located directly above the angle reflection module, and the length direction of the strip-shaped converging lens is parallel to the length direction of the angle reflection module.
具体实施二：Specific implementation two:
条状的汇聚透镜的长度方向与夹角反射模块的长度方向不平行。条状的汇聚透镜的长度方向与夹角反射模块的长度方向夹角大于等于10度，小于等于45度。The length direction of the strip-shaped converging lens is not parallel to the length direction of the angle reflection module. The angle between the length direction of the strip-shaped converging lens and the length direction of the angle reflection module is greater than or equal to 10 degrees and less than or equal to 45 degrees.
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.
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| CN201310100775.1ACN104076592B (en) | 2013-03-26 | 2013-03-26 | It is directed toward light source bore hole 3D optical projection systems and its 3D imaging screens |
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| CN201310100775.1ACN104076592B (en) | 2013-03-26 | 2013-03-26 | It is directed toward light source bore hole 3D optical projection systems and its 3D imaging screens |
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| CN104076592Btrue CN104076592B (en) | 2018-06-05 |
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| CN201310100775.1AActiveCN104076592B (en) | 2013-03-26 | 2013-03-26 | It is directed toward light source bore hole 3D optical projection systems and its 3D imaging screens |
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| TR01 | Transfer of patent right | Effective date of registration:20201222 Address after:274300 Longwangmiao Town, Shan county, Heze City, Shandong Province Patentee after:Li Jiaming Address before:201111 577, room second, 5500 Yuanjiang Road, Minhang District, Shanghai. Patentee before:SHANGHAI KE DOU ELECTRONIC TECHNOLOGY Co.,Ltd. | |
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| TR01 | Transfer of patent right | Effective date of registration:20241105 Address after:No. 4028 Jiabin Road, Heping Community, Nanhu Street, Luohu District, Shenzhen City, Guangdong Province 518000, Pacific Commercial Building A, BB1212-3 Patentee after:Leqi smart technology (Shenzhen) Co.,Ltd. Country or region after:China Address before:274300 Longwangmiao Town, Shan county, Heze City, Shandong Province Patentee before:Li Jiaming Country or region before:China |