A detection device and method for producing optical conical lenses

Abstract

The present invention relates to the field of conical lens detection technology, and in particular to a detection device and method for the production of optical conical lenses, comprising a bracket, a driving mechanism mounted on the bracket, a photodiode sensor mounted at the bottom of the bracket, a conical lens mounted inside the bracket, the conical lens being located above the photodiode sensor, the driving mechanism comprising a mounting frame, the mounting frame being movably connected to a first gear inside the mounting frame, the inner surface of the first gear being fixedly connected to a connecting frame, the bottom of the connecting frame being fixedly connected to an adjustment frame, the adjusting frame being movably connected to a moving block inside the adjusting frame, the bottom of the moving block being movably connected to a rotating column, the bottom of the rotating column being fixedly connected to a rectangular spotlight, the driving mechanism further comprising a motor, the output end of the motor being fixedly connected to a rotating shaft, the top of the rotating shaft being fixedly connected to a second gear, the side of the second gear being meshed with the side of the first gear. The present invention has a simple structure and convenient operation, and is convenient for production detection of conical lenses.

Description

Technical Field

[0001] The present invention relates to the field of conical lens detection, and in particular to a detection device and method for producing optical conical lenses. Background Art

[0002] Conical lenses are primarily used to change the direction of light beams, focus, or expand them. The purpose of testing conical lenses is to ensure that their optical performance, such as focal length accuracy, aberration control, and reflection or refraction efficiency, meets design requirements, thereby ensuring proper operation in optical systems (such as laser processing equipment and optical imaging systems).

[0003] Chinese invention patent CN201210430288.7 discloses a semi-automatic conic mirror inspection platform, comprising a rotary motor, a rotating shaft, a conic mirror mount, and a laser leveling mount. The rotary motor rotates the shaft via a motor gear, a transmission belt, and a shaft gear at the top of the shaft. This semi-automatic conic mirror inspection platform boasts a simple and compact structure, smooth and fast operation, and high precision and efficiency.

[0004] However, the above-mentioned semi-automatic conical mirror detection platform is designed so that the axis of the conical mirror through the mirror seat coincides with the axis of the exit pupil of the laser seat on the laser horizontal adjustment seat to ensure that the emitted laser hits the top of the conical mirror vertically to produce a uniform laser line. The laser line is then detected using a linear array CCD probe, which relies heavily on the CCD probe's laser line detection algorithm and the accuracy of the CCD probe. The operation is relatively cumbersome and inconvenient to use. Summary of the Invention

[0005] In view of this, the present invention provides a detection device and method for producing optical conical lenses, and the main technical problem to be solved is to provide a more convenient detection device for producing optical conical lenses.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a detection device for the production of optical conical lenses, comprising a bracket, a driving mechanism is installed on the bracket, a photodiode sensor is installed at the bottom of the bracket, a conical lens is installed inside the bracket, and the conical lens is located above the photodiode sensor, the driving mechanism comprises a mounting frame, the interior of the mounting frame is movably connected to a first gear, the inner surface of the first gear is fixedly connected to a connecting frame, the bottom of the connecting frame is fixedly connected to an adjustment frame, the interior of the adjustment frame is movably connected to a moving block, the bottom of the moving block is movably connected to a rotating column, the bottom of the rotating column is fixedly connected to a rectangular spotlight, the driving mechanism also comprises a motor, the output end of the motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a second gear, and the side of the second gear is meshed with the side of the first gear.

[0007] By adopting the above technical solution, the rectangular spotlight will emit a long rectangular light strip, which will be irradiated on the conical lens. The light refracted by the conical lens will be irradiated on the photodiode sensor, thereby converting the change in light intensity into a change in current intensity. There are multiple photodiode sensors. Under normal conditions, the current inside the photodiode sensor remains stable. When there is a problem with the quality of the conical lens being tested and the light cannot be refracted correctly, part of the light will be refracted to the photodiode sensors on both sides. The current inside the middle photodiode sensor will decrease, and the current in the photodiode sensors on both sides will increase. By detecting the current change inside the photodiode sensor, the effect of detecting the quality of the conical lens can be achieved.

[0008] As a further description of the above technical solution:

[0009] The bracket includes a bottom plate, the upper surface of the bottom plate is fixedly connected with two fixing columns, and the mounting bracket is installed between the two fixing columns.

[0010] By adopting the above technical solution, the installation of the mounting frame is facilitated, so that the driving mechanism can be installed on the bracket.

[0011] As a further description of the above technical solution:

[0012] The upper surface of the base plate is fixedly connected with a support plate, the support plate is located on the left side of the fixing column, and the motor is installed on the upper surface of the support plate.

[0013] By adopting the above technical solution, the motor is installed so that the motor can drive the second gear to rotate, thereby driving the first gear to rotate.

[0014] As a further description of the above technical solution:

[0015] The upper surface of the base plate is fixedly connected to a base, the conical lens is located inside the base, a through hole is provided at the bottom of the base, the photodiode sensor is installed on the upper surface of the base plate, and the number of the photodiode sensors is three, and the three photodiode sensors are all located below the base.

[0016] By adopting the above technical solution, the light emitted by the rectangular spotlight illuminates the surface of the conical lens, and after being refracted by the conical lens, the light passes through the through hole and illuminates the photodiode sensor.

[0017] As a further description of the above technical solution:

[0018] A track is fixedly connected to the inner surface of the mounting frame, a groove is formed on the outer surface of the first gear, and the track is located inside the groove.

[0019] By adopting the above technical solution, the first gear can rotate inside the mounting frame through the track inside the mounting frame and the groove on the surface of the first gear.

[0020] As a further description of the above technical solution:

[0021] An adjustment cavity is provided inside the adjustment frame, a screw rod is movably connected inside the adjustment cavity, and the moving block is mounted on the outer surface of the screw rod.

[0022] By adopting the above technical solution, the moving block is threadedly connected to the outer surface of the screw rod. Rotating the screw rod can adjust the position of the moving block, thereby controlling the position of the rectangular spotlight, so that the light emitted by the rectangular spotlight can be refracted by the conical lens and illuminate the photodiode sensor.

[0023] As a further description of the above technical solution:

[0024] A rotation groove is formed at the bottom of the moving block, and the rotation column is installed inside the rotation groove by screws.

[0025] By adopting the above technical solution, the angle of the rotating column is adjusted before use, and then the screws are tightened to fix the rotating column. The angle of the rectangular spotlight can be adjusted so that the light emitted by the rectangular spotlight can be refracted by the conical lens and illuminate the photodiode sensor.

[0026] A method for detecting optical conic lenses in production, using the above-mentioned detection device for optical conic lenses in production, comprises the following steps:

[0027] S1. Place the conical lens to be tested in the base and place the photodiode sensor below the base;

[0028] S2. Adjust the position and angle of the rectangular spotlight at the bottom of the rotating column so that the light emitted by the rectangular spotlight can be refracted by the conical lens and illuminate the photodiode sensor;

[0029] S3. Start the motor. The motor drives the second gear to rotate, which in turn drives the first gear to rotate, thereby enabling the rectangular spotlight to rotate around the conical lens.

[0030] S4. When the rectangular spotlight rotates, the current in the photodiode sensor is detected to determine whether the conical lens meets the standards.

[0031] By adopting the above technical solution, the light refracted by the conical lens can be converted into the current in the photodiode sensor to determine whether the quality of the conical lens is qualified, which reduces the difficulty of quality inspection of the conical lens and facilitates the inspection of the conical lens during the production process.

[0032] By means of the above technical solution, the optical cone lens production detection device and method of the present invention have at least the following beneficial effects:

[0033] 1. Compared with the existing technology, this optical conical lens production detection device uses a bracket, a driving mechanism, a photodiode sensor, and a conical lens. When using a rectangular spotlight to emit light, the light is irradiated on the conical lens. The light refracted by the conical lens will illuminate the photodiode sensor, thereby converting the light intensity change into the current intensity change. There are multiple photodiode sensors. Under normal conditions, the current inside the photodiode sensor remains stable. When there is a problem with the quality of the conical lens being detected and the light cannot be refracted correctly, part of the light will be refracted to the photodiode sensors on both sides. The current inside the middle photodiode sensor will decrease, and the current in the photodiode sensors on both sides will increase. By detecting the current change inside the photodiode sensor, the effect of conical lens quality detection is achieved. Compared with the existing semi-automatic conical lens detection platform, the conical lens needs to rely on the CCD probe for laser line detection algorithm and the accuracy of the CCD probe. This optical conical lens production detection device has a simple structure and is easy to operate, which is convenient for production detection of conical lenses.

[0034] 2. Compared with the existing technology, this detection device for the production of optical conical lenses can adjust the position and angle of the rectangular spotlight through the adjustment frame, screw, moving block, and rotating column during use, so that the light emitted by the rectangular spotlight can be refracted by the conical lens and illuminate the photodiode sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure from a first perspective of a detection device for producing optical conic lenses proposed by the present invention;

[0036] Figure 2 This is a schematic diagram of the overall structure from a second perspective of an optical cone lens production detection device proposed by the present invention;

[0037] Figure 3 This is a cross-sectional view of the internal structure of a detection device for producing optical conical lenses proposed by the present invention;

[0038] Figure 4 The present invention proposes a detection device for producing an optical cone lens Figure 3 A magnified view of the structure at center A;

[0039] Figure 5 The present invention proposes a detection device for optical cone lens production Figure 3 A magnified view of the structure at point B in the middle;

[0040] Figure 6 The present invention proposes a detection device for optical cone lens production Figure 3 A magnified view of the structure at point C in the middle;

[0041] Figure 7 This is a schematic diagram of light refraction in a detection device for producing optical conical lenses proposed by the present invention.

[0042] Legend:

[0043] 1. Bracket; 101. Bottom plate; 102. Fixed column; 103. Support plate; 104. Base; 105. Through hole; 2. Driving mechanism; 201. Mounting frame; 202. Track; 203. First gear; 204. Groove; 205. Connecting frame; 206. Adjusting frame; 207. Screw; 208. Moving block; 209. Rotating groove; 210. Rotating column; 211. Rectangular spotlight; 212. Motor; 213. Rotating shaft; 214. Second gear; 3. Photodiode sensor; 4. Conical lens. DETAILED DESCRIPTION

[0044] Reference Figure 1-Figure 7The present invention provides an optical conical lens production detection device: comprising a bracket 1, other equipment is mounted on the bracket 1, a driving mechanism 2 is mounted on the bracket 1, a photodiode sensor 3 is mounted at the bottom of the bracket 1, the photodiode sensor 3 is connected to the terminal device through a guide (the wires and the terminal device are not shown), the model of the photodiode sensor 3 is First sensor avalanche photodiode AD500-9 TO / SAM or other sensors that can convert changes in light intensity into changes in current, a conical lens 4 is mounted inside the bracket 1, the conical lens 4 is located above the photodiode sensor 3, the driving mechanism 2 includes a mounting frame 201, the mounting frame 201 is internally movably connected to a first gear 203, the first gear 203 can rotate inside the mounting frame 201, the inner surface of the first gear 203 is fixedly connected to a connecting frame 205, the bottom of the connecting frame 205 is fixedly connected to an adjustment frame 206, the adjustment frame 206 is internally movably connected to a moving block 208, the moving block 208 The position can be adjusted by moving forward and backward inside the adjustment frame 206. The bottom of the moving block 208 is movably connected to a rotating column 210. The rotating column 210 can be rotated inside the moving block 208 to adjust the angle. The bottom of the rotating column 210 is fixedly connected to a rectangular spotlight 211. The rectangular spotlight 211 is a spotlight with multiple bulbs vertically installed inside a long strip of light frame, which is used to emit long strips of light. When the quality of the conical lens 4 is poor, the long strips of light will be refracted and scattered to illuminate multiple photodiode sensors 3. The driving mechanism 2 also includes a motor 212. The output end of the motor 212 is fixed. The top of the rotating shaft 213 is fixedly connected to the second gear 214, and the side of the second gear 214 is meshed with the side of the first gear 203. The motor 212 can drive the rotating shaft 213 to rotate, thereby driving the second gear 214 to rotate and then driving the first gear 203 to rotate, so that the rectangular spotlight 211 installed under the first gear 203 can rotate around the conical lens 4, which is convenient for multi-angle detection of the conical lens 4. The specific rectangular spotlight 211 emits light and shines on the conical lens 4. The light refracted by the conical lens 4 will shine on the light On the photodiode sensor 3, the change in light intensity is converted into a change in current intensity. There are multiple photodiode sensors 3. Under normal conditions, the current inside the photodiode sensor 3 remains stable. When there is a problem with the quality of the conical lens 4 being detected and it cannot refract the light correctly, part of the light will be refracted to the photodiode sensors 3 on both sides. The current inside the middle photodiode sensor 3 will decrease, and the current inside the photodiode sensors 3 on both sides will increase. By detecting the current change inside the photodiode sensor 3, the effect of detecting the quality of the conical lens 4 can be achieved.

[0045] The bracket 1 includes a base plate 101, and a fixing column 102 is fixedly connected to the upper surface of the base plate 101, and there are two fixing columns 102. The mounting frame 201 is installed between the two fixing columns 102 to facilitate the installation of the mounting frame 201, so that the driving mechanism 2 can be installed on the bracket 1. The upper surface of the base plate 101 is fixedly connected to the support plate 103, and the support plate 103 is located on the left side of the fixing column 102. The motor 212 is installed on the upper surface of the support plate 103. The motor 212 is installed so that the motor 212 can drive the second gear 214 to rotate, thereby driving the first gear 203 to rotate.

[0046] The upper surface of the base plate 101 is fixedly connected to the base 104, the conical lens 4 is located inside the base 104, and a through hole 105 is provided at the bottom of the base 104. The photodiode sensor 3 is installed on the upper surface of the base plate 101, and there are three photodiode sensors 3. The three photodiode sensors 3 are all located below the base 104, and the middle photodiode sensor 3 among the three photodiode sensors 3 is located directly below the through hole 105. The light emitted by the rectangular spotlight 211 is irradiated on the surface of the conical lens 4. After being refracted by the conical lens 4, the light will pass through the through hole 105 and irradiate the photodiode sensor 3.

[0047] The inner surface of the mounting frame 201 is fixedly connected to a track 202, and the outer surface of the first gear 203 is provided with a groove 204. The track 202 is located inside the groove 204. Through the track inside the mounting frame 201 and the groove on the surface of the first gear 203, the first gear 203 can rotate inside the mounting frame 201.

[0048] An adjustment cavity is provided inside the adjustment frame 206, and a screw rod 207 is movably connected inside the adjustment cavity. The moving block 208 is installed on the outer surface of the screw rod 207. Rotating the screw rod 207 can control the moving block 208 to move back and forth to adjust the position of the moving block 208. A rotating groove 209 is provided at the bottom of the moving block 208, and the rotating column 210 is installed inside the rotating groove 209 by a screw. First adjust the position of the rotating column 210 and then rotate the screw to lock the rotating column 210, thereby adjusting the angle between the rotating column 210 and the rectangular spotlight 211. When in use, the position and angle of the rectangular spotlight can be adjusted so that the light emitted by the rectangular spotlight 211 can be refracted by the conical lens 4 and illuminate the photodiode sensor 3.

[0049] A method for detecting optical conic lenses in production, using the above-mentioned detection device for optical conic lenses in production, comprises the following steps:

[0050] S1. Place the conical lens 4 to be tested in the base 104 and place the photodiode sensor 3 below the base 104;

[0051] S2. Adjust the position and angle of the rectangular spotlight 211 at the bottom of the rotating column 210 so that the light emitted by the rectangular spotlight 211 can be refracted by the conical lens 4 and illuminate the photodiode sensor 3;

[0052] S3, starting the motor 212, the motor 212 drives the second gear 214 to rotate and then drives the first gear 203 to rotate, so that the rectangular spotlight 211 can rotate around the conical lens 4;

[0053] S4. When the rectangular spotlight 211 rotates, the current in the photodiode sensor 3 is detected to determine whether the conical lens 4 meets the standards.

[0054] The light refracted by the conical lens can be converted into the current in the photodiode sensor to judge whether the quality of the conical lens is qualified, which reduces the difficulty of the quality inspection of the conical lens and facilitates the inspection of the conical lens during the production process.

[0055] Working principle: A rectangular spotlight 211 is used to emit light and shine it on the conical lens 4. The light refracted by the conical lens 4 will shine on the photodiode sensor 3, thereby converting the change in light intensity into a change in current intensity. There are multiple photodiode sensors 3. Under normal conditions, the current inside the photodiode sensor 3 remains stable. When there is a problem with the quality of the conical lens 4 being tested and the light cannot be refracted correctly, part of the light will be refracted to the photodiode sensors 3 on both sides. The current inside the middle photodiode sensor 3 will decrease, and the current inside the photodiode sensors 3 on both sides will increase. By detecting the current change inside the photodiode sensor 3, the quality detection effect of the conical lens 4 can be achieved. This optical conical lens production detection device has a simple structure and is easy to operate, which is convenient for production detection of conical lenses.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detection device for producing an optical conical lens, comprising a bracket (1), characterized in that: The support (1) is provided with a driving mechanism (2), a photodiode sensor (3) is provided at the bottom of the support (1), a conical lens (4) is provided inside the support (1), and the conical lens (4) is located above the photodiode sensor (3), the driving mechanism (2) comprises a mounting frame (201), a first gear (203) is movably connected to the inside of the mounting frame (201), a connecting frame (205) is fixedly connected to the inner surface of the first gear (203), and an adjusting frame (205) is fixedly connected to the bottom of the connecting frame (205). 06), the interior of the adjustment frame (206) is movably connected to a moving block (208), the bottom of the moving block (208) is movably connected to a rotating column (210), the bottom of the rotating column (210) is fixedly connected to a rectangular spotlight (211), the driving mechanism (2) also includes a motor (212), the output end of the motor (212) is fixedly connected to a rotating shaft (213), the top of the rotating shaft (213) is fixedly connected to a second gear (214), and the side of the second gear (214) is meshed with the side of the first gear (203).

2. The optical cone lens production detection device according to claim 1, characterized in that: The bracket (1) comprises a base plate (101), the upper surface of the base plate (101) is fixedly connected with a fixing column (102), and the number of the fixing columns (102) is two, and the mounting frame (201) is installed between the two fixing columns (102).

3. The optical cone lens production detection device according to claim 2, characterized in that: A support plate (103) is fixedly connected to the upper surface of the base plate (101), the support plate (103) is located on the left side of the fixed column (102), and the motor (212) is installed on the upper surface of the support plate (103).

4. The optical cone lens production detection device according to claim 3, characterized in that: The upper surface of the base plate (101) is fixedly connected to a base (104), the conical lens (4) is located inside the base (104), a through hole (105) is provided at the bottom of the base (104), and the photodiode sensor (3) is mounted on the upper surface of the base plate (101), and the number of the photodiode sensors (3) is three, and the three photodiode sensors (3) are all located below the base (104).

5. The optical cone lens production detection device according to claim 4, characterized in that: The inner surface of the mounting frame (201) is fixedly connected to a track (202), the outer surface of the first gear (203) is provided with a groove (204), and the track (202) is located inside the groove (204).

6. The optical cone lens production detection device according to claim 5, characterized in that: An adjustment cavity is provided inside the adjustment frame (206), a screw rod (207) is movably connected inside the adjustment cavity, and the moving block (208) is installed on the outer surface of the screw rod (207).

7. The optical cone lens production detection device according to claim 6, characterized in that: A rotation groove (209) is provided at the bottom of the moving block (208), and the rotation column (210) is installed inside the rotation groove (209) by means of screws.

8. A method for detecting an optical conic lens in production, using the optical conic lens detection device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, placing the conical lens (4) to be detected in the base (104), and placing the photodiode sensor (3) below the base (104); S2. Adjust the position and angle of the rectangular spotlight (211) at the bottom of the rotating column (210) so that the light emitted by the rectangular spotlight (211) can be refracted by the conical lens (4) and illuminate the photodiode sensor (3); S3, starting the motor (212). The operation of the motor (212) drives the second gear (214) to rotate, and then drives the first gear (203) to rotate, thereby enabling the rectangular spotlight (211) to rotate around the conical lens (4); S4. When the rectangular spotlight (211) rotates, the current in the photodiode sensor (3) is detected to determine whether the conical lens (4) meets the standards.

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