CN107357129B - Wide-angle integrating sphere - Google Patents
Wide-angle integrating sphere Download PDFInfo
- Publication number
- CN107357129B CN107357129B CN201610302506.7A CN201610302506A CN107357129B CN 107357129 B CN107357129 B CN 107357129B CN 201610302506 A CN201610302506 A CN 201610302506A CN 107357129 B CN107357129 B CN 107357129B
- Authority
- CN
- China
- Prior art keywords
- sphere
- wide
- angle
- light source
- integrating sphere
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G03B43/00—Testing correct operation of photographic apparatus or parts thereof
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A wide-angle integrating sphere, which comprises an outer sphere, a baffle and an inner sphere; the outer ball is provided with an inner space, a light source inlet and a window, the baffle and the inner ball are arranged in the inner space of the outer ball, the baffle is positioned between the light source inlet and the inner ball so as to prevent light entering from the light source inlet from directly reaching the inner ball, the inner ball is provided with a detection opening, the detection opening corresponds to the window of the outer ball so as to conveniently place a detection product in the detection opening of the inner ball through the window, and the inner ball is a semi-transparent ball so as to conveniently pass through the outer ball and the light diffusely reflected by the baffle to pass through the inner ball, so that a wide-angle uniform light source is provided for the detection product.
Description
Technical Field
The present invention relates to the field of light sources, and more particularly, to a wide-angle integrating sphere that provides a wide-angle uniform light source.
Background
With the continuous development of information electronics and information technology, people's lives become more and more colorful, and interaction and communication among each other are more and more timely and diverse. For example, various information is shared through various social networks.
In this case, the photographing means such as the photographing module is an essential tool. At present, the camera module with a common visual angle cannot meet the demands of people, and is suitable for the demands, so that the camera module with a wide angle or a super wide angle such as a super wide angle module, a fisheye module, a 360-degree panoramic module and the like is generated.
The module detection is an important step in the manufacturing process of the camera module, and various performances of the camera module are judged through detection, so that camera equipment with stable and superior performances is provided for consumers. The camera module shoots the target object by means of reflection of light, so that a light source is an indispensable component in the detection process.
For the wide-angle or related camera modules like the ultra-wide-angle module, the fisheye module, the 360-degree panoramic module and the like, the angle of the received light is wider compared with the traditional camera module, so that a target object with a larger angle can be shot. Accordingly, during the detection process, it is necessary to provide a test light source at a larger angle.
A test light source and a test product are mutually adapted, and an integrating sphere is a uniform light source which is frequently used in the detection of a traditional camera module and provides a uniform emergent light source through the structure of a reflecting sphere. However, for the traditional integrating sphere or the uniform light source, the provided light source is a plane-based light source, and is only suitable for modules with common view angles or partial wide angles, and for the currently emerging products, such as ultra-wide angle modules, fish-eye modules, 360-degree panoramic modules and other wide angles or related camera modules, the traditional integrating sphere or the uniform light source cannot meet the test requirements, so that the camera modules or cameras cannot perform the related tests of images well.
Referring to fig. 1A, the conventional integrating sphere includes a sphere 10P, a light source 20P and a light reflecting plate 30P, the sphere 10P having an inlet 11P and an outlet 12P, the light source being disposed at the inlet position of the sphere so that light is incident into the sphere 10P, the light reflecting plate 30P being disposed at a position opposite to the inlet 11P in the sphere 10P so as to block direct light entering the sphere 10P. When the integrating sphere is used to test the camera module, the camera module is usually placed at the outlet 12P, the light incident by the light source 20P is reflected to the inner wall of the sphere by the reflector 30P, continues to be reflected by the inner wall of the sphere 10P, reaches the other side of the reflector 30P, and is reflected by the reflector 30P, and the camera module takes the reflector 30P as a target, so that the performance of the camera module is detected by the taken image.
As is apparent from this, the reflection plate 30P provides a photographing object of a uniform light source for the photographing module, and the reflection plate 30P has a plate-like structure, thus providing an object of one plane of the photographing module, so that the reflection plate 30P cannot satisfy a larger photographing angle when the photographing module is a wide-angle photographing module. Therefore, when the traditional integrating sphere is used for detecting the camera module, a dark angle or a dark edge phenomenon appears in the edge area of the camera module, and the performance of the camera module cannot be well detected.
On the other hand, referring to fig. 1B, in order to adapt to the existing wide-angle camera module, such as the ultra-wide-angle module, the fisheye module, the 360 ° panorama module, etc., the conventional integrating sphere or the uniform light source is generally required to be modified, and the existing integrating sphere simulating the wide-angle is generally formed by combining a plurality of light sources 20P and a plurality of light reflecting plates 30P, which are matched and arranged on the sphere 10P, and are located at different directions of the exit positions, so as to provide more angles of light. However, in this way, on the one hand, the structure is complex, so that the manufacturing cost is relatively high, and on the other hand, in the detection process, shadows can be formed on the detection product, so that the shooting effect is affected.
Disclosure of Invention
An object of the present invention is to provide a wide-angle integrating sphere, which provides a spherical photographing surface, thereby increasing the angle of photographing and adapting to the photographing mode of the wide-angle photographing module.
It is an object of the present invention to provide a wide-angle integrating sphere, wherein the wide-angle integrating sphere includes an inner sphere and an outer sphere, the inner sphere is located in the outer sphere, the outer sphere reflects light into the inner sphere, and the detection product is suitable for being placed in the inner sphere, so that a spherical shooting surface is provided by the inner wall of the inner sphere.
An object of the present invention is to provide a wide-angle integrating sphere, wherein the wide-angle integrating sphere includes a light source and a blocking member, the outer sphere has a light source inlet, the light source is disposed at the light source inlet, the blocking member is disposed in the outer sphere opposite to the light source inlet, and is disposed between the inner sphere and the light source inlet, and blocks light directly entering the outer sphere from directly reaching the inner sphere.
It is an object of the present invention to provide a wide angle integrating sphere in which the stop is spherical in shape, matches with the inner sphere, thereby better blocking direct light and providing uniform reflected light to the inner sphere.
It is an object of the present invention to provide a wide angle integrating sphere wherein the inner sphere is translucent such that light rays are reflected by the outer sphere and enter the inner sphere to form a uniform spherical light source.
An object of the present invention is to provide a wide-angle integrating sphere, wherein the inner sphere has an inner wall and an outer wall, and both the inner wall and the outer wall have plating layers, so that light transmitted through the inner sphere is uniform.
It is an object of the present invention to provide a wide angle integrating sphere wherein the inner sphere has a detection port and the outer sphere has a window, the detection port being opposite the window so that the detection product can be fed through the window into the detection port.
It is an object of the present invention to provide a wide-angle integrating sphere, wherein the wide-angle integrating sphere includes a first hemisphere and a second hemisphere detachably connected to the first hemisphere, the inner space sealed with the first hemisphere is formed, thereby providing a closed detection environment.
To achieve the above objects and other objects and advantages, in accordance with one aspect of the present invention, there is provided a wide-angle integrating sphere comprising: an outer ball, a blocking member and an inner ball; the inner ball is provided with an inner space, a light source inlet and a window, the baffle and the inner ball are arranged in the outer ball, the baffle is positioned between the light source inlet and the inner ball so as to prevent light entering from the light source inlet from directly reaching the inner ball, the inner ball is provided with a detection opening corresponding to the window of the outer ball so as to conveniently place a detection product in the detection opening of the inner ball through the window, the inner ball is a semi-transparent ball so as to conveniently pass through the outer ball and the light diffusely reflected by the baffle passes through the inner ball, and a wide-angle uniform light source is provided for the detection product.
According to an embodiment of the present invention, the outer sphere is an opaque sphere in the wide-angle integrating sphere, so as to isolate external light and provide a closed environment for the inner sphere.
According to an embodiment of the present invention, the outer sphere has an inner wall of the outer sphere, and the inner wall of the outer sphere has a coating layer so as to uniformly reflect light.
According to an embodiment of the present invention, the inner sphere in the wide-angle integrating sphere includes an inner sphere wall and an inner sphere outer wall, and the inner sphere wall and the inner sphere outer wall have plating layers thereon so that light uniformly enters the inner sphere and is uniformly reflected in the inner sphere.
According to an embodiment of the present invention, the coating of the inner sphere in the wide-angle integrating sphere is Baso4 coating.
According to an embodiment of the present invention, in the wide-angle integrating sphere, the center of the light source inlet, the geometric center of the blocking member, and the center of the inner sphere are located on the same straight line, so that the light received by the inner sphere is uniform.
According to one embodiment of the present invention, the wide-angle integrating sphere includes a light source mounted to the light source inlet of the outer sphere.
According to an embodiment of the present invention, the wide-angle integrating sphere includes a controller, and the controller is communicatively connected to the light source, so as to control the operation of the light source, so as to adapt to the detection requirements of different detection products.
According to an embodiment of the invention, the light source in the wide-angle integrating sphere is an LED light source.
According to one embodiment of the present invention, the wide-angle integrating sphere includes a bracket, and the outer sphere is mounted to the bracket.
According to an embodiment of the present invention, the support in the wide-angle integrating sphere includes a support body and a set of walking wheels, the outer sphere is mounted on the support body, and the walking wheels are mounted under the support body so as to support the wide-angle integrating sphere to walk.
According to an embodiment of the present invention, the blocking member in the wide-angle integrating sphere is a cambered surface structure, a convex side surface of the cambered surface structure is opposite to the light source inlet, and a concave side surface of the cambered surface structure is opposite to the inner sphere.
According to an embodiment of the invention, the blocking member in the wide-angle integrating sphere is a spherical surface.
According to an embodiment of the present invention, the surface of the blocking member in the wide-angle integrating sphere has a plating layer.
According to an embodiment of the present invention, the outer sphere of the wide-angle integrating sphere includes a first outer hemisphere and a second outer hemisphere, and the second outer hemisphere is detachably connected to the first outer hemisphere to form the inner space.
According to an embodiment of the present invention, the second outer hemisphere of the wide-angle integrating sphere is connected to the first outer hemisphere by screwing.
According to an embodiment of the present invention, the blocking member in the wide-angle integrating sphere is mounted on the inner side of the first hemisphere by a mounting frame, and the inner sphere is mounted on the inner side of the second hemisphere.
According to an embodiment of the present invention, the inner sphere in the wide-angle integrating sphere is integrally formed by 3D printing.
According to an embodiment of the present invention, the outer sphere 3D in the wide-angle integrating sphere is integrally formed by printing.
According to an embodiment of the present invention, the inner sphere is fixed inside the outer sphere by screwing.
According to an embodiment of the present invention, the detection port of the inner sphere in the wide-angle integrating sphere forms an extension pipe, the extension pipe is communicated with the window of the outer sphere, and the extension pipe is screwed at the position of the window.
Drawings
Fig. 1A and 1B are schematic views of an integrating sphere according to the prior art.
Fig. 2 is a perspective view of a wide-angle integrating sphere according to a preferred embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a wide-angle integrating sphere according to the above preferred embodiment of the present invention.
Fig. 4 is an exploded view of the wide-angle integrating sphere according to the above preferred embodiment of the present invention.
Fig. 5 is a schematic view showing a light propagation manner of the wide-angle integrating sphere according to the above preferred embodiment of the present invention.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
The wide angle or related camera modules such as the ultra-wide angle module, the fish eye module and the 360-degree panoramic module are novel camera module types developed in recent years, can enlarge the visual angle range of shooting, display pictures which cannot be displayed in a non-wide angle, and are closer to the actual field of vision of people as the wide angle is larger. For example, a 360-degree panoramic module, and a picture shot by the panoramic module is just like an effect of looking around a circle in a body-placing environment. The wide-angle camera module brings better visual impact to people, is suitable for some special environments, has numerous advantages and has good development prospect. However, a product is produced, and corresponding manufacturing and detecting technologies also need to be improved correspondingly, for example, when a traditional integrating sphere is used for detection, phenomena such as dark edges and the like appear, which indicate that the traditional integrating sphere cannot meet the requirements of the existing product. According to the preferred implementation of the present invention, a wide-angle integrating sphere is provided for providing a uniform light source, especially suitable for a wide-angle camera module, and can provide a uniform light source with a wide viewing angle for the wide-angle camera module, so as to facilitate detection of the wide-angle camera module. It should be noted that the wide-angle camera module of the present invention is suitable for testing a wide-angle camera module, and provides a wide-angle uniform light source for the wide-angle camera module, but the wide-angle camera module can also be used for detecting a common camera module.
As shown in fig. 2 to 5, is a wide-angle integrating sphere according to a preferred embodiment of the present invention. The wide angle integrating sphere includes an outer sphere 10, an inner sphere 20, a stop 30, and a light source 40.
The outer sphere 10 has an inner space 11 and a light source inlet 12, the inner sphere 20 is disposed in the inner space 11 of the outer sphere 10, and the light source 40 is disposed at the light source 40 inlet 12 of the outer sphere 10 so that light is incident into the inner space 11 of the outer sphere 10 through the light source 40 inlet 12.
In this embodiment of the invention, the light source 40 is mounted at the light source inlet 12 of the outer sphere 10 and is fixedly connected to the outer sphere 10. That is, the light source 40 is a fixed member of the wide-angle integrating sphere.
In other embodiments of the invention, however, the light source 40 may be provided separately, with the light source 40 being combined with the outer sphere 10 to provide the base light source 40 for the wide angle integrating sphere. That is, a separate light source 40 is combined with the wide-angle integrating sphere of the present invention so that a test work can be performed, where the light source 40 is not a fixed part of the wide-angle integrating sphere, and it should be understood by those skilled in the art that the arrangement or separate provision of the light source 40 is not a limitation of the present invention. In particular, the light source 40 is a high brightness light source so as to provide a sufficient reflected light intensity.
Further, the light source 40 is an LED light source, and may be a high-power LED lamp set. In this embodiment of the present invention, the light source 40 may be communicatively connected to a controller 41, and the controller 41 may control factors such as color temperature and brightness of the light source 40, so as to provide different light conditions, so that the wide-angle integrating sphere may meet shooting and testing requirements of different types of shooting modules or cameras. The light source 40 may be communicatively coupled to the controller 41 in a wired or wireless manner. It should be understood by those skilled in the art that the connection manner of the light source 40 and the controller 41 and the arrangement position of the controller 41 are not limitations of the present invention.
The blocking member 30 is disposed at the inner space 11 of the outer bulb 10 at a position opposite to the incident direction of the light source 40, thereby blocking light directly entering the inner space 11 of the outer bulb 10 through the light source inlet 12.
According to this embodiment of the invention, the baffle 30 is of arcuate configuration so as to provide a wider area for blocking incoming direct light rays, with the convex side of the arcuate configuration being opposite the light source inlet 12 and the concave side of the arcuate configuration being opposite the inner sphere 20. In particular, the stop 30 is of spherical configuration. And the outer sphere is opposite to the light incident direction of the light source 40, and the inner sphere is opposite to the inner sphere 20. The baffles 30 are coated on both sides to provide better diffuse reflection of light. More specifically, the plating layers on both sides of the stopper 30 are the same as the plating layers on the inner wall of the outer ball 10.
While in other embodiments of the present invention, the baffle 30 may have other structures, such as a plate-like structure, or may be a conventional reflector, but is limited to geometric structures and light reflection effects, preferably spherical cambered structures, and those skilled in the art will appreciate that the specific structure and shape of the baffle 30 is not a limitation of the present invention.
The outer sphere 10 has an outer sphere inner wall, and the outer sphere inner wall 13 has a plating layer so as to be uniformly diffusely reflected when light reaches the outer sphere inner wall 13 of the outer sphere 10. More specifically, the plating layer is Baso 4 And a plating layer so as to ensure diffuse reflectance of the inner wall of the outer ball 10.
It should be noted that the outer ball 10 is an opaque ball, so as to isolate external light and prevent external stray light from entering the inner space 11 of the inner ball 20, thereby providing a closed inner environment for the inner ball 20.
Further, the blocking member 30 is located between the inner sphere 20 and the light source inlet 12 so as to block light entering from the light source inlet 12 of the outer sphere 10 from directly reaching the inner sphere 20. That is, the light emitted from the light source 40 enters the inner space 11 of the outer sphere 10 through the light source inlet 12 of the outer sphere 10, is projected onto the baffle 30, and is diffusely reflected by the baffle 30, so as to be reflected onto the inner wall 13 of the outer sphere 10, and after passing through the baffle 30 and the multiple diffuse reflections of the outer sphere 10, the light reaches the inner sphere 20, providing a uniform projected light source 40 of the inner sphere 20. The baffle 30, in combination with the inner ball 20, provides a photographing detection condition such that the light received by the inner ball 20 is diffusely reflected. That is, the light received by the inner ball 20 is the reflected light of the inner wall of the outer ball 10 and the light reflected by the inner side of the stopper 30.
The inner ball 20 has an inner ball outer wall 22 and an inner ball inner wall 21, and the inner ball inner wall 21 and the inner ball outer wall 22 are both provided with a plating layer, so that the inner ball 20 is a semi-transparent ball, and the light transmitted through the inner ball 20 is uniform. According to this embodiment of the invention, the coating is Baso 4 The coating layer ensures the uniformity of the transmitted light of the inner ball 20, and has good uniform light transmission and diffuse reflection effects. More specifically, during manufacturing, the inner ball 20 may be manufactured using a 3D printer with high precision using translucency.
According to this embodiment of the present invention, the outer sphere 10 is preferably of a sphere structure so as to provide more uniform light through a center-symmetrical structure, while in other embodiments of the present invention, the outer sphere 10 may have other shapes, such as an ellipsoid, a square, a polyhedron, etc., it being understood by those skilled in the art that the shape of the outer sphere 10 is not a limitation of the present invention.
The outer ball 10 has a window 14, and the inner ball 20 has a detection port 23, and the window 14 is opposite to the detection port 23, so that a detection product, such as a wide-angle camera module, can be placed in the detection port 23 through the window 14 of the outer ball 10. According to this embodiment of the present invention, the center of the light source 40, the center of the window 14 of the outer sphere 10, the geometric center of the stopper 30, the center of the detection opening 23 of the inner sphere 20, and the center of the inner sphere 20 are positioned on the same straight line, so that the stopper 30 preferably blocks the direct light from the inner sphere 20 and the light received by the inner sphere 20 is more uniform.
It should be noted that, in the conventional detection manner, the detection product is directly placed in the sphere, and during detection, the detection product, such as a camera module or a camera, takes the reflector 30P as an object to shoot, the reflector 30P reflects the reflected light of the inner wall of the sphere, and the reflected light is captured by the detection product, such as captured by the camera module or the addition shooting, so as to obtain the detected image information. In this case, the reflection plate 30P is taken as a photographing object and reflects relatively uniform light, so that photographing conditions of the uniform light source 40 can be provided for the inspection product. However, when the detection product is a wide-angle camera module or a camera, the object with a larger angle needs to be shot, and the reflective plate only provides a planar object, so that a dark edge appears in the edge area of the shot image, that is, the purpose of detecting the wide-angle camera module or the camera cannot be achieved. In the present invention, the inspection product is placed in the inner sphere 20, and the inner sphere 20 is a uniform transparent sphere, and in the inspection process, the inner sphere wall 21 of the inner sphere 20 is a photographing object, and provides a uniform reflection light source, so as to provide a spherical uniform light source photographing object of the inspection object, for example, the wide-angle photographing module or the wide-angle camera, and when the inspection object, for example, the wide-angle photographing module or the wide-angle camera, performs photographing, the whole stereoscopic space can be used as a photographing object, thereby fully meeting the photographing requirements of the wide-angle or related photographing modules or cameras such as the ultra-wide-angle module, the fisheye module, the 360-degree panoramic module, and the like, so that the wide-angle or related photographing modules or cameras such as the ultra-wide-angle module, the fisheye module, the 360-degree panoramic module, and the like can photograph the photographing object of the uniform light source 40 at any position. In particular, the inner sphere 20 can provide a 360 ° uniform light source, which is suitable for the requirement of the 360 ° panoramic module for shooting images. The inner sphere 20 serves as a uniform light source 40 on the one hand, and diffusely reflects light rays passing through the inner sphere 20, entering the inner sphere 20, and diffusely reflecting on the inner sphere wall 21 of the inner sphere 20. The light rays in the inner sphere 20 are subjected to multiple attenuation, multiple transmission and diffuse reflection, so that the light rays are more uniform, and better shooting conditions can be provided; on the other hand, the inspection product is placed in the inner ball 20, and the inner wall 21 of the inner ball 20 is a photographing object, and is a spherical photographing object, so as to provide a uniform light source condition of a wide angle, thereby avoiding the phenomenon that the wide angle or related photographing modules or cameras such as the ultra-wide angle module, the fisheye module, the 360-degree panorama module and the like have dark edges and the like in the process of inspecting photographing. And the blocking member 30 is combined with the inner ball 20 such that the light directly emitted from the light source 40 does not directly reach the inner ball 20.
In particular, in this embodiment of the present invention, the inner ball 20 is fixed inside the outer ball 10, and the window 14 of the outer ball 10 and the detection port 23 of the inner ball 20 are made to communicate with each other. More specifically, in one embodiment, the position of the detection port 23 of the inner ball 20 forms an extension pipe, so that the inner ball 20 and the outer ball 10 are fixedly connected to each other through the extension pipe, and the window 14 of the outer ball 10 is communicated with the extension pipe. That is, the extension pipe provides the inner ball 20 with a location fixed to the outer ball 10. For example, the inner ball 20 may be connected to the outer ball 10 by screwing or welding, etc. In particular, in this embodiment of the invention, the inner ball 20 is connected to the outer ball 10 by means of a screw connection. That is, threads are provided on the outer wall of the extension pipe of the inner ball 20, and reverse threads are provided on the inner wall of the window 14 of the outer ball 10, so that the outer ball 10 and the inner ball 20 are screw-coupled. In yet another embodiment of the present invention, the inner ball 20 may be coupled to the outer ball 10 by direct insertion, that is, the extension pipe of the inner ball 20 is inserted into the window 14 of the outer ball 10, so that the inner ball 20 is stably fixed to the outer ball 10. In another embodiment of the present invention, the inner ball 20 may be connected to the outer ball 10 by an integral connection, for example, by 3D printing, and the outer ball 10 is printed continuously after the inner ball 20 is printed, and the inner ball 20 is fixedly connected to the outer ball 10. It will be appreciated by those skilled in the art that the manner in which the inner ball 20 and the outer ball 10 are connected is not a limitation of the present invention.
It should be noted that the inner ball 20 is suspended in the outer ball 10, so that the light reflected by the inner wall of the outer ball 10 can be received at different positions and in different directions of the inner ball 20, and the light is uniform. That is, the inner ball 20 is fixed to the outer ball 10 through the extension pipe, and is not in contact with the outer ball inner wall 13 of the outer ball 10 in the remaining position.
In particular, in this embodiment of the present invention, the diameters of the outer ball 10 and the inner ball 20 are collinear, so that the inner ball 20 is located at a relatively middle position in the inner space 11 of the outer ball 10 and is symmetrically distributed, so that the light received at the upper and lower sides of the inner ball 20 are uniform, and uniformity of the light inside the inner ball 20 is ensured.
The wide-angle integrating sphere includes a bracket 50, and the outer sphere 10 is mounted to the bracket 50 so that the outer sphere 10 can be stably supported and placed.
The stand 50 includes a stand body 51 and a set of traveling wheels 52, the set of traveling wheels 52 being mounted to the stand body 51, and the outer sphere 10 being mounted to the stand body 51 such that the wide-angle integrating sphere can freely move in position. More specifically, the road wheel 52 has a traveling state and a fixed state, and the wide-angle integrating sphere is freely movable when the road wheel 52 is in the traveling state, and is stably stopped at a fixed position and a stable position where detection is possible when the road wheel 52 is in the fixed state. In particular, in this embodiment of the present invention, the stand 50 includes four of the traveling wheels 52, which are symmetrically distributed, so as to stably support the traveling of the wide-angle integrating sphere.
According to this embodiment of the present invention, the outer sphere 10 comprises two hemispheres, a first outer hemisphere 15 and a second outer hemisphere 16, respectively, the second outer hemisphere 16 being detachably connected to the first outer hemisphere 15 for easy installation of the stopper 30 and the inner sphere 20.
More specifically, the first outer hemisphere 15 is mounted to the bracket 50, the light source 40 inlet 12 is provided to the first outer hemisphere 15, and the light source 40 is mounted to the first outer hemisphere 15 at a position corresponding to the light source inlet 12 and located outside the first outer hemisphere 15. The baffle 30 is mounted on the inner side of the first outer hemisphere 15 by a mounting frame 31, and the outer arc surface of the baffle 30 is opposite to the first outer hemisphere 15. The window 14 is provided in the second outer hemisphere 16, and the inner sphere 20 is mounted inside the second outer hemisphere 16 at a position corresponding to the window 14 of the second outer hemisphere 16. In this embodiment of the invention, the second hemisphere is connected to the first hemisphere by screwing, that is to say, at the interface of the first outer hemisphere 15 and the second outer hemisphere 16, respectively, cooperating screw structures are provided, so that the second outer hemisphere 16 is screwed to the first outer hemisphere 15. Of course, in other embodiments of the present invention, the second outer hemisphere 16 may be connected to the first outer hemisphere 15 by other means, such as plugging, magnetic connection, fixing component connection, etc., and it should be understood by those skilled in the art that the connection between the second outer hemisphere 16 and the first outer hemisphere 15 is not a limitation of the present invention.
It should be noted that in this embodiment of the present invention, the first outer hemisphere 15 and the second outer hemisphere 16 are symmetrical hemispheres, that is, the outer sphere 10 is divided into two halves, while in other embodiments of the present invention, the first outer hemisphere 15 and the second outer hemisphere 16 may be unequal hemispheres, that is, the outer spheres 10 are unevenly separated to form a sphere structure, and it should be understood by those skilled in the art that the sizes of the first outer hemisphere 15 and the second outer hemisphere 16 are not limitations of the present invention. And in another embodiment of the present invention, the outer ball 10 may be of a unitary construction.
It should be noted that, the conventional wide-angle-simulating integrating sphere generally includes a plurality of combined light sources and a plurality of reflectors, has a complex structure, is easy to generate shadows for the detected product, and has poor detection effect, while according to the preferred embodiment of the present invention, the requirement of uniform light sources of a wide angle is simply realized by combining the inner sphere 20, the outer sphere 10 and the blocking member 30, so that the manufacturing cost of the wide-angle-simulating integrating sphere is lower than that of the wide-angle-simulating integrating sphere, which is about one tenth of that of the approximate-effect integrating sphere, and thus the production cost is greatly saved.
On the other hand, the testing method of the wide-angle integrating sphere is the same as the traditional testing method, so that the wide-angle integrating sphere can be arranged under the condition of not changing the original production line arrangement, special production line arrangement is not needed, the testing is carried out through the traditional testing method, the equipment is convenient to move, the operation is simple, the traditional testing process can be reserved to the maximum extent, and the production testing efficiency is not influenced.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Claims (19)
1. A wide-angle integrating sphere, comprising:
an outer ball;
a blocking member; and
an inner ball; the outer sphere is provided with an inner space, a light source inlet and a window, the baffle and the inner sphere are arranged in the inner space of the outer sphere, the baffle is positioned between the light source inlet and the inner sphere so as to prevent light entering from the light source inlet from directly reaching the inner sphere, the outer sphere is an opaque sphere, the center of the light source inlet, the geometric center of the baffle and the center of the inner sphere are positioned on the same straight line, the inner sphere is provided with a detection opening, the detection opening corresponds to the window of the outer sphere so as to enable a detection product to be placed in the detection opening of the inner sphere through the window, the inner sphere is a semi-transparent sphere so as to enable light which passes through the outer sphere and is diffusely reflected by the baffle to pass through the inner sphere, and a wide-angle uniform light source is provided for the detection product, and the inner wall of the inner sphere can provide a spherical shooting surface.
2. The wide-angle integrating sphere of claim 1, wherein the outer sphere has an outer sphere inner wall with plating thereon to uniformly reflect light.
3. The wide-angle integrating sphere of claim 1, wherein the inner sphere comprises an inner sphere inner wall and an inner sphere outer wall, the inner sphere inner wall and the inner sphere outer wall having plating thereon to facilitate uniform light entry into the inner sphere and uniform reflection within the inner sphere.
4. The wide-angle integrating sphere of claim 3, wherein the coating of the inner sphere is BaSO 4 And (3) plating.
5. The wide-angle integrating sphere of claim 1, wherein the wide-angle integrating sphere comprises a light source mounted to the light source inlet of the outer sphere.
6. The wide-angle integrating sphere of claim 5, wherein the wide-angle integrating sphere comprises a controller communicatively coupled to the light source to facilitate control of operation of the light source to accommodate detection needs of different detection products.
7. The wide-angle integrating sphere of claim 5, wherein the light source is an LED light source.
8. The wide-angle integrating sphere of claim 1, wherein the wide-angle integrating sphere comprises a bracket to which the outer sphere is mounted.
9. The wide-angle integrating sphere of claim 8, wherein the support comprises a support body to which the outer sphere is mounted and a set of road wheels mounted below the support body to support the wide-angle integrating sphere for walking.
10. The wide-angle integrating sphere according to any one of claims 1 to 9, wherein the stopper is a cambered surface structure, a convex side of the cambered surface structure being opposite to the light source inlet, and a concave side of the cambered surface structure being opposite to the inner sphere.
11. The wide-angle integrating sphere of claim 10, wherein the stop is a spherical surface.
12. The wide-angle integrating sphere of claim 10, wherein the stop surface has a plating.
13. The wide-angle integrating sphere of any one of claims 1 to 9, wherein the outer sphere comprises a first outer hemisphere and a second outer hemisphere detachably connected to the first outer hemisphere, forming the inner space.
14. The wide-angle integrating sphere of claim 13, wherein the second outer hemisphere is connected to the first outer hemisphere by a threaded connection.
15. The wide-angle integrating sphere of claim 13, wherein the stop is mounted inside the first outer hemisphere by a mount and the inner sphere is mounted inside the second outer hemisphere.
16. The wide-angle integrating sphere according to any one of claims 1 to 9, wherein the inner sphere is integrally formed by means of 3D printing.
17. The wide-angle integrating sphere according to any one of claims 1 to 9, wherein the outer sphere is integrally formed by means of 3D printing.
18. The wide-angle integrating sphere according to any one of claims 1 to 9, wherein the inner sphere is fixed inside the outer sphere by screwing.
19. The wide-angle integrating sphere according to any one of claims 1 to 9, wherein the detection port of the inner sphere forms an extension pipe, communicates with the window of the outer sphere, and the extension pipe is screwed to the window position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302506.7A CN107357129B (en) | 2016-05-09 | 2016-05-09 | Wide-angle integrating sphere |
| PCT/CN2016/105130 WO2017080441A1 (en) | 2015-11-09 | 2016-11-09 | Method for finding optical centre of lens, device for selecting shadow computation region for lens and testing surround view video-shooting module, method for testing white balance of surround view video-shooting module, and wide-angle integrating sphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302506.7A CN107357129B (en) | 2016-05-09 | 2016-05-09 | Wide-angle integrating sphere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107357129A CN107357129A (en) | 2017-11-17 |
| CN107357129B true CN107357129B (en) | 2023-08-08 |
Family
ID=60271102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302506.7A Active CN107357129B (en) | 2015-11-09 | 2016-05-09 | Wide-angle integrating sphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107357129B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632511A (en) * | 2018-05-16 | 2018-10-09 | 上海小蚁科技有限公司 | The brightness offset value of panorama fisheye camera is determining, luminance compensation method and device, terminal, fisheye camera |
| CN110081351A (en) * | 2019-05-31 | 2019-08-02 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of homogeneous radiation heat source |
| CN117589294B (en) * | 2024-01-19 | 2024-04-09 | 中国科学院长春光学精密机械与物理研究所 | Spherical integrating cavity structure and off-axis integrating cavity gas measuring instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432578Y (en) * | 2000-06-12 | 2001-05-30 | 中国科学院安徽光学精密机械研究所 | Optical integrating-sphere |
| JP2002048713A (en) * | 2000-07-31 | 2002-02-15 | Toppan Printing Co Ltd | Optical measuring device |
| CN201210088Y (en) * | 2008-05-30 | 2009-03-18 | 泰仕电子工业股份有限公司 | Integrating-sphere |
| CN101915609A (en) * | 2010-08-02 | 2010-12-15 | 中国科学院长春光学精密机械与物理研究所 | Integrating sphere device for optical measurement |
| CN103217218A (en) * | 2013-03-18 | 2013-07-24 | 京东方科技集团股份有限公司 | Spectrum test device and method |
| CN205880492U (en) * | 2016-05-09 | 2017-01-11 | 宁波舜宇光电信息有限公司 | Wide angle total mark ball |
-
2016
- 2016-05-09 CN CN201610302506.7A patent/CN107357129B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432578Y (en) * | 2000-06-12 | 2001-05-30 | 中国科学院安徽光学精密机械研究所 | Optical integrating-sphere |
| JP2002048713A (en) * | 2000-07-31 | 2002-02-15 | Toppan Printing Co Ltd | Optical measuring device |
| CN201210088Y (en) * | 2008-05-30 | 2009-03-18 | 泰仕电子工业股份有限公司 | Integrating-sphere |
| CN101915609A (en) * | 2010-08-02 | 2010-12-15 | 中国科学院长春光学精密机械与物理研究所 | Integrating sphere device for optical measurement |
| CN103217218A (en) * | 2013-03-18 | 2013-07-24 | 京东方科技集团股份有限公司 | Spectrum test device and method |
| CN205880492U (en) * | 2016-05-09 | 2017-01-11 | 宁波舜宇光电信息有限公司 | Wide angle total mark ball |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107357129A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017202369A1 (en) | Camera shooting apparatus and mobile terminal device having same | |
| JP6276777B2 (en) | Artificial lighting system that simulates natural light | |
| CN107357129B (en) | Wide-angle integrating sphere | |
| CN103091961A (en) | Image displaying apparatus | |
| CN205880492U (en) | Wide angle total mark ball | |
| CN108681188A (en) | A kind of portable imaging module | |
| WO2018121031A1 (en) | Light supplementing lamp for door units of video doorbells and device | |
| CN106646891B (en) | A kind of virtual reality device | |
| JPS5819804A (en) | Lighting apparatus | |
| KR101741659B1 (en) | Light source apparatus for camera module alien substances inspection | |
| TWM461073U (en) | Monitoring camera | |
| CN209248244U (en) | 360 degree of visual angle optical system imaging devices | |
| CN217236740U (en) | Optical device for realizing high-precision three-dimensional form | |
| CN211698536U (en) | Area light source with side image capture | |
| TW201527858A (en) | Fill light structure and camera device applying fill light structure | |
| TWI515504B (en) | Camera apparatus | |
| JPH0675303A (en) | Reflection-type screen having recurrent reflection property | |
| CN210428067U (en) | Energy-conserving projector of blue purple light LED and projection membrane thereof | |
| US20050134803A1 (en) | Illuminating device reusing polarized light | |
| CN220983085U (en) | Cylindrical workpiece detection light source and machine vision detection device | |
| CN208297906U (en) | A kind of portable imaging module | |
| CN220471440U (en) | Optical path adjustable annular light source and detection system | |
| CN211669047U (en) | Visual light source and machine vision system | |
| US11112084B1 (en) | Refracting elements, including ball lenses that concentrate and provide unobstructed optical pathways from multiple light sources | |
| TWI684058B (en) | Projection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |