Optical measuring device for dual rotating axes and measuring method thereof

Abstract

The present invention discloses an optical measurement device of a dual-rotating axis and a measurement method thereof, comprising a base, a first rotating motor connected to a first worm gear reducer, the first worm gear reducer connected to a light source rotating plate, a light source is provided at the end of the light source rotating plate; a second rotating motor connected to a second worm gear reducer, the second worm gear reducer connected to a fiber head rotating plate, a fiber head is provided at the end of the fiber head rotating plate; a semi-integrating sphere lifting column is fixed on the base, a semi-integrating sphere cantilever is connected to the semi-integrating sphere lifting column, and the semi-integrating sphere cantilever is connected to the semi-integrating sphere; the first worm gear reducer and the second worm gear reducer are coaxially mounted, and the light source rotating plate and the fiber head rotating plate are staggered. In the present invention, the dual rotating axes are driven by a rotating motor and a worm gear, the two rotating axes keep rotating coaxially, are staggered in the vertical direction, do not interfere with each other, and can be flexibly rotated 0 to 180 degrees to achieve optical measurement at different angles.

Description

Technical Field

[0001] The present invention relates to the technical field of optical measurement, and in particular to an optical measurement device with dual rotating axes and a measurement method thereof. Background Art

[0002] Optical measurement equipment is used in the LCD industry to measure the optical parameters of the luminous surface of the LCD panel, such as chromaticity and brightness. With the full start of the HDTV era, in order to better restore the sharp, bright, high-resolution images, the development of some higher-quality full HD display devices is also accelerating, and the various conditions for testing are also increasing.

[0003] At present, the optical measuring machines equipped with various instruments in the industry can only be used for optical measurements at different heights and in different background environments. For optical measurements under reflected light, the reflected light instrument emits light, which is then reflected to the LCD panel at a fixed angle to the optical measuring machine to measure various parameters. It is not compatible with measurements that require reflected light at multiple different angles, resulting in incomplete and intricate optical parameters. Different angles can only be measured with different equipment, or it is difficult to adjust the angle, resulting in low efficiency. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an optical measuring device with dual rotating axes and a measuring method thereof. The dual rotating axes composed of a light source rotating plate and a fiber head rotating plate are driven by a rotating motor and a worm gear. The two rotating axes rotate coaxially and are staggered in the vertical direction without interfering with each other. They can be flexibly rotated 0 to 180 degrees to achieve optical measurement at different angles.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an optical measuring device with dual rotating axes, the optical measuring device comprises a base, the base is provided with a first worm gear reducer, a first rotating motor, a second worm gear reducer, a second rotating motor, an optical fiber head rotating plate, a light source rotating plate, an optical fiber head, a light source, a semi-integrating sphere, a semi-integrating sphere lifting column, and a semi-integrating sphere cantilever;

[0006] The first rotating motor is connected to the first worm gear reducer, the first worm gear reducer is connected to the light source rotating plate, and a light source is provided at an end of the light source rotating plate;

[0007] The second rotating motor is connected to the second worm gear reducer, the second worm gear reducer is connected to the optical fiber head rotating plate, and an optical fiber head is provided at the end of the optical fiber head rotating plate;

[0008] The semi-integrating sphere lifting column is fixed on the base, the semi-integrating sphere cantilever is connected to the semi-integrating sphere lifting column, and the semi-integrating sphere cantilever is connected to the semi-integrating sphere;

[0009] The first worm gear reducer and the second worm gear reducer are coaxially installed, and the light source rotating plate and the optical fiber head rotating plate are staggered.

[0010] Furthermore, the first worm gear reducer is connected to the light source rotating plate via a round rod, a round hole is provided in the middle of the second worm gear reducer, and the round rod is passed through the round hole, thereby realizing the coaxial staggered rotation of the optical fiber head rotating plate and the light source rotating plate.

[0011] Furthermore, the rotation angle ranges of the optical fiber head rotating plate and the light source rotating plate are both 0 to 180 degrees, so as to achieve optical parameter measurement at different angles.

[0012] Furthermore, the light source is a parallel collimated light source.

[0013] Furthermore, the semi-integrating sphere lifting column is vertically arranged, and the semi-integrating sphere cantilever is arranged perpendicular to the semi-integrating sphere lifting column; the semi-integrating sphere cantilever can move up and down along the semi-integrating sphere lifting column in the vertical direction.

[0014] Furthermore, the semi-integrating sphere cantilever is connected to the semi-integrating sphere via a rotating mechanism, and the rotating mechanism includes a rotating head, a plurality of connecting columns and a connecting plate, the rotating head is rotatably connected to the end of the semi-integrating sphere cantilever, one end of the connecting column is connected to the rotating head, the other end of the connecting column is connected to the connecting plate, one end of the connecting plate is connected to the semi-integrating sphere, and the other end of the connecting plate is connected to a gasket.

[0015] A measuring method for an optical measuring device with dual rotating axes, the measuring method mainly comprising the following contents: placing a workpiece to be measured on a test platform, adjusting a semi-integrating sphere to be directly above the workpiece to be measured; driving a light source rotating plate to rotate by a first rotating motor and a first worm gear reducer to adjust the incident angle of the light source; driving an optical fiber head rotating plate to rotate by a second rotating motor and a second worm gear reducer to adjust the receiving angle of the optical fiber head; the first worm gear reducer and the second worm gear reducer are coaxially installed, and the light source rotating plate and the optical fiber head rotating plate are staggered so as not to interfere with each other during rotation; after the incident light passes through a diffuse reflection lighting system with adjustable illumination provided by the semi-integrating sphere, the optical fiber head receives the light source information, and then transmits the light source information to a data center, and the data center performs data analysis and sorting on the light source information to form a measurement report.

[0016] Furthermore, when the semi-integrating sphere is adjusted, the height in the vertical direction is adjusted by moving the semi-integrating sphere cantilever up and down along the semi-integrating sphere lifting column, and the angle in the horizontal direction is adjusted by the rotating mechanism between the semi-integrating sphere cantilever and the semi-integrating sphere; when measurement is not required, the semi-integrating sphere is rotated out of the way by the rotating mechanism.

[0017] The beneficial effects of the present invention are as follows: compared with the prior art, the dual-rotation axis optical measurement device provided by the present invention drives the light source and the optical fiber head through a rotating motor, the two rotating axes keep rotating concentrically, are staggered in the vertical direction, and do not interfere with each other, and can achieve optical parameter measurement at any angle of 0 to 180 degrees. The light source can be a collimated light source to ensure that the light source does not scatter light. It can be used with other motion control systems, and the angle can be controlled by setting parameters on the PC side, and the measured data is automatically sorted to form a measurement report. It can meet the increasing measurement needs of the LCD industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the optical measuring device provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the optical measuring device provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the back three-dimensional structure of the optical measuring device provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the front structure of the optical measuring device provided by the present invention.

[0022] Among them, 1-the second worm gear reducer; 2-round rod; 3-base; 4-optical fiber head rotating plate; 5-optical fiber head; 6-light source rotating plate; 7-light source; 8-semi-integrating sphere; 9-connecting column; 10-connecting plate; 11-gasket; 12-rotating head; 13-semi-integrating sphere cantilever; 14-semi-integrating sphere lifting column; 15-round hole; 16-test platform; 17-test piece; 18-second rotating motor; 19-first worm gear reducer; 20-first rotating motor. DETAILED DESCRIPTION

[0023] The present invention is further described below by specific examples, but these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. Example

[0024] like Figure 1-4As shown, an optical measuring device with dual rotating axes includes a base 3, on which are provided a first worm gear reducer 19, a first rotating motor 20, a second worm gear reducer 1, a second rotating motor 18, an optical fiber head rotating plate 4, a light source rotating plate 6, an optical fiber head 5, a light source 7, a semi-integrating sphere 8, a semi-integrating sphere lifting column 14, and a semi-integrating sphere cantilever 13; the first rotating motor 20 is connected to the first worm gear reducer 19, the first worm gear reducer 19 is connected to the light source rotating plate 6, and the end of the light source rotating plate 6 is provided with a light source 7; the second rotating motor 18 is connected to the second worm gear reducer 1, the second worm gear reducer 1 is connected to the optical fiber head rotating plate 4, and the end of the optical fiber head rotating plate 4 is provided with an optical fiber head 5; the semi-integrating sphere lifting column 14 is fixed on the base 3, the semi-integrating sphere cantilever 13 is connected to the semi-integrating sphere lifting column 14, and the semi-integrating sphere cantilever 13 is connected to the semi-integrating sphere 8; the first worm gear reducer 19 and the second worm gear reducer 1 are coaxially installed, and the light source rotating plate 6 and the optical fiber head rotating plate 4 are staggered.

[0025] The first worm gear reducer 19 is connected to the light source rotating plate 6 through a round rod 2. A round hole 15 is provided in the middle of the second worm gear reducer 1. The round rod 2 is inserted into the round hole 15, so as to realize the coaxial staggered rotation of the optical fiber head rotating plate 4 and the light source rotating plate 6. The rotation angle range of the optical fiber head rotating plate 4 and the light source rotating plate 6 is 0 to 180 degrees to realize the optical parameter measurement at different angles. The light source 7 is a parallel collimated light source.

[0026] The semi-integrating sphere lifting column 14 is vertically arranged, and the semi-integrating sphere cantilever 13 is arranged perpendicular to the semi-integrating sphere lifting column 14; the semi-integrating sphere cantilever 13 can move up and down in the vertical direction along the semi-integrating sphere lifting column 14. The semi-integrating sphere cantilever 13 is connected to the semi-integrating sphere 8 through a rotating mechanism, and the rotating mechanism includes a rotating head 12, a plurality of connecting columns 9 and a connecting plate 10. The rotating head 12 is rotatably connected to the end of the semi-integrating sphere cantilever 13, one end of the connecting column 9 is connected to the rotating head 12, and the other end of the connecting column 9 is connected to the connecting plate 10, one end of the connecting plate 10 is connected to the semi-integrating sphere 8, and the other end of the connecting plate 10 is connected to the gasket 11.

[0027] A measuring method for a dual-rotating-axis optical measuring device, the measuring method mainly comprising the following contents: placing a workpiece 17 on a test platform 16, and adjusting a semi-integrating sphere 8 to be directly above the workpiece 17; driving a light source rotating plate 6 to rotate by a first rotating motor 20 and a first worm gear reducer 19 to adjust the incident angle of a light source 7; driving an optical fiber head rotating plate 4 to rotate by a second rotating motor 18 and a second worm gear reducer 1 to adjust the receiving angle of an optical fiber head 5; the first worm gear reducer 19 and the second worm gear reducer 1 are coaxially mounted, and the light source rotating plate 6 and the optical fiber head rotating plate 4 are offset and do not interfere with each other during rotation; after the incident light passes through a diffuse reflection lighting system with adjustable illumination provided by the semi-integrating sphere 8, the optical fiber head 5 receives the light source information, and then transmits the light source information to a data center, and the data center performs data analysis and sorting on the light source information to form a measurement report. When the semi-integrating sphere 8 is adjusted, the height is adjusted in the vertical direction by moving the semi-integrating sphere cantilever 13 up and down along the semi-integrating sphere lifting column 14, and the angle is adjusted in the horizontal direction by the rotation mechanism between the semi-integrating sphere cantilever 13 and the semi-integrating sphere 8; when measurement is not needed, the semi-integrating sphere 8 is rotated out of the way by the rotation mechanism.

[0028] The dual-rotation axis optical measurement device and its measurement method provided in this embodiment drive the light source 7 and the optical fiber head 5 through a rotating motor, and the two rotating axes keep rotating concentrically, and are arranged in a staggered manner in the vertical direction without interfering with each other, so as to realize the optical parameter measurement at any angle of 0 to 180 degrees. The light source 7 can be a collimated light source to ensure that the light source 7 does not scatter light. It can be matched with other motion control systems, and the angle can be controlled by setting parameters on the PC side, and the measured data can be automatically sorted to form a measurement report. It can meet the increasing measurement needs of the LCD industry.

[0029] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A measurement method for a dual-rotation axis optical measurement device, characterized in that: The optical measuring device comprises a base, on which are arranged a first worm gear reducer, a first rotating motor, a second worm gear reducer, a second rotating motor, an optical fiber head rotating plate, a light source rotating plate, an optical fiber head, a light source, a semi-integrating sphere, a semi-integrating sphere lifting column, and a semi-integrating sphere cantilever; The first rotating motor is connected to the first worm gear reducer, the first worm gear reducer is connected to the light source rotating plate, and a light source is provided at an end of the light source rotating plate; The second rotating motor is connected to the second worm gear reducer, the second worm gear reducer is connected to the optical fiber head rotating plate, and an optical fiber head is provided at the end of the optical fiber head rotating plate; The semi-integrating sphere lifting column is fixed on the base, the semi-integrating sphere cantilever is connected to the semi-integrating sphere lifting column, and the semi-integrating sphere cantilever is connected to the semi-integrating sphere; The first worm gear reducer and the second worm gear reducer are coaxially mounted, and the light source rotating plate and the optical fiber head rotating plate are staggered; The measuring method of the optical measuring device mainly comprises the following contents: placing the measured object on a testing platform, and adjusting a half integrating sphere to be directly above the measured object; The light source rotating plate is driven to rotate by the first rotating motor and the first worm gear reducer to adjust the incident angle of the light source; the optical fiber head rotating plate is driven to rotate by the second rotating motor and the second worm gear reducer to adjust the receiving angle of the optical fiber head; the first worm gear reducer and the second worm gear reducer are coaxially installed, and the light source rotating plate and the optical fiber head rotating plate are staggered and will not interfere with each other during rotation; after the incident light passes through the diffuse reflection lighting system with adjustable illumination provided by the semi-integrating sphere, the optical fiber head receives the light source information, and then transmits the light source information to the data center, and the data center performs data analysis and sorting on the light source information to form a measurement report.

2. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: The first worm gear reducer is connected to the light source rotating plate via a round rod, a round hole is provided in the middle of the second worm gear reducer, and the round rod is passed through the round hole, thereby realizing the coaxial staggered rotation of the optical fiber head rotating plate and the light source rotating plate.

3. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: The rotation angle ranges of the optical fiber head rotating plate and the light source rotating plate are both 0 to 180 degrees, so as to realize the measurement of optical parameters at different angles.

4. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: The light source is a parallel collimated light source.

5. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: The semi-integrating sphere lifting column is vertically arranged, and the semi-integrating sphere cantilever is arranged perpendicular to the semi-integrating sphere lifting column; the semi-integrating sphere cantilever can move up and down along the semi-integrating sphere lifting column in the vertical direction.

6. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: The semi-integrating sphere cantilever is connected to the semi-integrating sphere via a rotating mechanism, wherein the rotating mechanism comprises a rotating head, a plurality of connecting columns and a connecting plate, wherein the rotating head is rotatably connected to the end of the semi-integrating sphere cantilever, one end of the connecting column is connected to the rotating head, the other end of the connecting column is connected to the connecting plate, one end of the connecting plate is connected to the semi-integrating sphere, and the other end of the connecting plate is connected to a gasket.

7. The measuring method of a dual-rotation axis optical measuring device according to claim 1, characterized in that: When adjusting the semi-integrating sphere, the semi-integrating sphere cantilever is moved up and down along the semi-integrating sphere lifting column to adjust the height in the vertical direction, and the rotation mechanism between the semi-integrating sphere cantilever and the semi-integrating sphere is used to adjust the angle in the horizontal direction; when measurement is not required, the semi-integrating sphere is rotated out of the way by the rotation mechanism.

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