Cutting method of optical imaging element
阅读说明：本技术 光学成像元件的切割方法 (Cutting method of optical imaging element ) 是由 颜展 张兵 韩成 于 2019-10-25 设计创作，主要内容包括：本发明公开了一种光学成像元件的切割方法,包含如下步骤：根据应用场景确定空中成像的视点,视点为用户观看空中成像的观看点；根据视点,确定空中成像的具体显示位置；根据视点的位置和空中成像的具体显示位置,确定光学成像元件的最优反射区；根据最优反射区确定光学成像元件的姿态和位置；将视点沿多个方向投影至光学成像元件所在平面,多个方向为视点与空中成像的轮廓各个点的连线方向,视点不在所述空中成像内部,空中成像位于视点与光学成像元件之间；视点在所述光学成像元件所在平面的所有投影点围成投影区；按照投影区的轮廓切割出光学成像元件。本发明既能保证成像品质不变,还能降低成本,并节约占地空间,扩展使用场景。(The invention discloses a cutting method of an optical imaging element, which comprises the following steps: determining a viewpoint of aerial imaging according to an application scene, wherein the viewpoint is a viewing point of a user viewing the aerial imaging; determining a specific display position of aerial imaging according to the viewpoint; determining an optimal reflection area of the optical imaging element according to the position of the viewpoint and the specific display position of aerial imaging; determining the posture and the position of the optical imaging element according to the optimal reflection area; projecting a viewpoint to a plane where an optical imaging element is located along a plurality of directions, wherein the plurality of directions are the connecting directions of the viewpoint and each point of the outline of aerial imaging, the viewpoint is not located inside the aerial imaging, and the aerial imaging is located between the viewpoint and the optical imaging element; all projection points of the viewpoint on the plane where the optical imaging element is located enclose a projection area; and cutting the optical imaging element according to the outline of the projection area. The invention can not only ensure the imaging quality to be unchanged, but also reduce the cost, save the occupied space and expand the use scenes.)
1. A method for cutting an optical imaging element, comprising the steps of:
determining a viewpoint of aerial imaging according to an application scene, wherein the viewpoint is a viewing point of a user viewing the aerial imaging;
determining a specific display position of aerial imaging according to the viewpoint;
determining an optimal reflection area of the optical imaging element according to the position of the viewpoint and the specific display position of the aerial imaging;
determining the posture and the position of the optical imaging element according to the optimal reflection area;
projecting the viewpoint to a plane where the optical imaging element is located along a plurality of directions, wherein the plurality of directions are the directions of connecting lines of the viewpoint and all points of the outline of the aerial imaging, the viewpoint is not inside the aerial imaging, and the aerial imaging is located between the viewpoint and the optical imaging element;
all projection points of the viewpoint on the plane where the optical imaging element is located enclose a projection area;
and cutting the optical imaging element according to the outline of the projection area.
2. The method for cutting an optical imaging element according to claim 1, wherein the aerial image is irradiated with a plurality of rays from the viewpoint as a starting point, the plurality of rays forming a shadow of the aerial image on a plane on which the optical imaging element is placed, the shadow being a projection area.
3. The method for cutting an optical imaging element according to claim 2, wherein the ray is a virtual ray and the shadow is a virtual shadow.
4. The method for cutting an optical imaging element according to claim 2, wherein the ray actual light, the aerial image are simulated with a real object, and the shadow is an actual shadow.
5. The method for cutting an optical imaging element according to claim 1, wherein the optical imaging element is a microchannel matrix optical waveguide plate.
6. The method for cutting an optical imaging element according to claim 5, wherein the optical imaging element comprises a plurality of layers of transparent laminates arranged in a stacked manner, each layer of transparent laminate comprises a plurality of transparent strips attached side by side, the attaching surface of each transparent strip and/or the opposite surface of the attaching surface are provided with reflecting surfaces, the reflecting surfaces are made of vapor/electroplated metal or pasted reflecting films, and the transparent strips of the adjacent layers are orthogonal to each other.
7. The method for cutting an optical imaging element according to claim 6, wherein both side boundaries of the optimal reflection region are at an angle of not less than 15 ° with respect to two transparent bars orthogonal to each other.
8. The method for cutting an optical imaging element according to claim 7, wherein the aerial imaging body is symmetrical to the aerial imaging opposing optical imaging element, and the viewpoint is located in the optimal reflection region.
9. The method for cutting an optical imaging element according to claim 8, wherein the attitude of the optical imaging element comprises: the orientation of the plane of the light-transmitting laminate and the direction of the transparent strip.
Technical Field
The invention relates to a manufacturing technology of an optical element, in particular to a cutting method of an optical imaging element.
Background
Disclosure of Invention
According to an embodiment of the present invention, there is provided a method for cutting an optical imaging element, including the steps of:
determining a viewpoint of aerial imaging according to an application scene, wherein the viewpoint is a viewing point of a user viewing the aerial imaging;
determining a specific display position of aerial imaging according to the viewpoint;
determining an optimal reflection area of the optical imaging element according to the position of the viewpoint and the specific display position of the aerial imaging;
determining the posture and the position of the optical imaging element according to the optimal reflection area;
projecting the viewpoint to a plane where the optical imaging element is located along a plurality of directions, wherein the plurality of directions are the directions of connecting lines of the viewpoint and all points of the outline of the aerial imaging, the viewpoint is not inside the aerial imaging, and the aerial imaging is located between the viewpoint and the optical imaging element;
all projection points of the viewpoint on the plane where the optical imaging element is located enclose a projection area;
and cutting the optical imaging element according to the outline of the projection area.
Further, with the viewpoint as a starting point, the aerial image is irradiated by a plurality of rays, and the rays form a shadow of the aerial image on a plane where the optical imaging element is located, and the shadow is a projection area.
Further, the ray is a virtual ray and the shadow is a virtual shadow.
Further, the ray actual light rays and the aerial imaging are simulated by a real object, and the shadow is an actual shadow.
Further, the optical imaging element is a micro-channel matrix optical waveguide flat plate.
Further, the optical imaging component contains the printing opacity stack that multilayer stack set up, every layer of printing opacity stack contains a plurality of transparent bars of laminating side by side, the binding face of transparent bar and/or the opposite face of this binding face are equipped with the plane of reflection, the plane of reflection is the reflection coating of evaporating/electroplate metal, or pasting, the transparent bar of adjacent layer is orthogonal each other.
Furthermore, the included angle between the boundaries of the two sides of the optimal reflection area and the two orthogonal transparent strips is not less than 15 degrees.
Further, the aerial imaging body and the aerial imaging opposite optical imaging element are symmetrical, and the viewpoint is located in the optimal reflection area.
The pose of the optical imaging element comprises: the orientation of the plane of the light-transmitting laminate and the direction of the transparent strip.
According to the cutting method of the optical imaging element, provided by the embodiment of the invention, the imaging quality can be ensured to be unchanged, the cost can be reduced, the occupied space is saved, and the use scene is expanded.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
FIG. 1 is a method flow diagram of a method for cutting an optical imaging element according to an embodiment of the invention;
FIG. 2 is a schematic orthogonal structure diagram of an optical imaging element according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an optimal reflection region of a cutting method of an optical imaging element according to an embodiment of the present invention;
FIG. 4 is one of examples of a projection schematic view of a viewpoint of a cutting method of an optical imaging element on a plane of the optical imaging element according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the optical imaging element cut according to the projection area of FIG. 4;
FIG. 6 is a second exemplary view of the projection of the viewpoint onto the plane of the optical imaging element according to the cutting method of the optical imaging element of the embodiment of the invention;
fig. 7 is a schematic structural diagram of the optical imaging element cut according to the projection region in fig. 6.
Detailed Description
The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.
First, a cutting method of an optical imaging element according to an embodiment of the present invention will be described with reference to fig. 1 to 7, which is used for manufacturing the optical imaging element, and can cut optical imaging elements of various shapes, and the application scenarios are wide.
As shown in fig. 1 to 7, according to the cutting method of the optical imaging element of the embodiment of the present invention, in this embodiment, as shown in fig. 2 and 3, the optical imaging element is a micro-channel matrix optical waveguide flat plate, and includes a plurality of layers of stacked
in
In
In step 3, as shown in fig. 1 and 3, determining an
In step 4, as shown in fig. 1, 4 and 6, the posture and position of the optical imaging element are determined according to the
In step 5, as shown in fig. 1, 4 and 6, the viewpoint E is projected to the plane where the optical imaging element is located along a plurality of directions, which are the directions connecting the viewpoint E and the points of the contour of the aerial image Q, i.e. the passing ray ET, assuming that the plane is Ax + By + Cz + D =0 nAnd projecting the viewpoint E to the plane where the optical imaging element is located, wherein the viewpoint E is not inside the aerial image and the aerial image Q is located between the viewpoint E and the optical imaging element in the embodiment.
In step 6, as shown in fig. 1, 4 and 6, the viewpoint E encloses a projection area on the plane where the optical imaging element is located, i.e., all projection points of Ax + By + Cz + D = 0.
In this embodiment, the projection of the point E on the plane where the optical imaging element is located and the projection area can be obtained by two methods:
the method comprises the following steps:
as shown in FIGS. 1, 4 and 6, a ray ET is obtained from a viewpoint E nVirtual illumination aerial imaging Q, { T } n(x n,y n,z n) N belongs to N, and ET is a ray nIntersecting Ax + By + Cz + D =0, and after the point set of the aerial imaging Q is virtually shielded, the set of all intersection points of the formed shadow is { T } n’(x n’,y n’,z n') | N ∈ N }, and the set is the projection area. Therefore, in the method, the sight line of the user is simulated through the coordinate system, the viewpoint E, the aerial imaging Q and the coordinates of the plane where the optical imaging element is positioned,and adopting the virtual ray as a ray to obtain a virtual shadow.
The second method comprises the following steps:
as shown in fig. 1, 4, and 6, the real object is illuminated by the real light source from the viewpoint E, and the real object performs real object simulation according to the outline of the aerial image Q, and after being blocked by the real object, a real shadow, that is, a projection area, is left on the plane where the optical imaging element is located.
In step 7, as shown in fig. 1, 5, and 7, the optical imaging element, that is, the minimum shape and size of the optical imaging element of the micro-channel matrix optical waveguide plate, is cut according to the contour of the projection area, which greatly saves consumables and cost, and saves occupied space. And, the shape of the projection area can be various shapes, therefore, the application scene is greatly expanded.
The cutting method of the optical imaging element according to the embodiment of the invention is described above with reference to fig. 1 to 7, which can ensure that the imaging quality is not changed, reduce the cost, save the occupied space and expand the use scenes.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "a cutting method including one optical imaging element" does not exclude the presence of another identical element in a process, method, article, or apparatus that includes the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
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