Light transmittance detection device for optical lens production

Abstract

The utility model relates to the technical field of lens production, in particular to a light transmittance detection device for optical lens production, which comprises a processing table, a turntable is mounted at the top of the processing table through a cam divider, and a processing mechanism is arranged on the processing table and used for processing a lens. Comprising a plurality of positioning seats circumferentially distributed on the outer edge of the top of a rotary disc, four sliding seats circumferentially distributed are fixed to the upper ends in the positioning seats, double-end racks are slidably mounted in the sliding seats, positioning heads are mounted at the tops of the double-end racks, and guide gears are arranged on the two sides of the sliding seats and are in meshing transmission with the double-end racks; automatic positioning of the lens is realized, uniform distribution of clamping force is ensured, and offset deformation is avoided; an optical detection system is constructed through a laser light source and a photoelectric sensor and is matched with a collimating lens to form a standard light path, the transmission light intensity ratio is accurately measured, the light transmittance is calculated, and efficient and accurate automatic detection is achieved.

Description

A transmittance testing device for optical lens manufacturing Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, specifically to a transmittance testing device for optical lens manufacturing. Background Technology

[0002] An optical lens is an optical element used to control the propagation and focusing of light. It is commonly found in various optical systems, such as cameras, telescopes, microscopes, and lasers. Optical lenses have different shapes and surface properties to achieve various optical functions, such as focusing, imaging, and dispersion. Optical lenses are usually made of optical materials, such as glass, plastic, or crystal, and have precise surface shapes and optical properties.

[0003] According to CN222318409U, a transmittance testing device for optical lens production is disclosed. This technology discloses "a transmittance testing device for optical lens production, which relates to the field of lens testing device technology, including a transmittance measuring instrument. The front surface of the transmittance measuring instrument is provided with a touch screen, the upper surface of the transmittance measuring instrument is provided with a photodetector, a laser light source is provided above the transmittance measuring instrument, and the transmittance measuring instrument is provided with a light source adjustment component for adjusting the Z-axis, X-axis, and Y-axis positions of the laser light source." This technology has the following technical effects: "By setting a light source adjustment component on the transmittance measuring instrument for adjusting the Z-axis, X-axis, and Y-axis positions of the laser light source, the height and horizontal position of the laser light source can be easily adjusted. The laser light source is located directly above the photodetector, and the photodetector and the lens holder correspond one-to-one. The laser light source can be adjusted to different heights and horizontal positions through the light source adjustment component, thereby realizing transmittance testing of optical lenses at different heights and positions."

[0004] Existing optical lens transmittance testing devices suffer from uneven clamping force distribution during lens positioning, which can cause the lens to shift or deform during testing, affecting the accuracy of transmittance measurement results. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a transmittance testing device for optical lens production, which enables automatic lens positioning, ensures uniform distribution of clamping force, and avoids displacement and deformation. An optical testing system is constructed using a laser light source and a photoelectric sensor, and a collimating lens is used to form a standard optical path. The transmittance is calculated by accurately measuring the ratio of transmitted light intensity, thus achieving efficient and accurate automated testing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a transmittance testing device for optical lens production, comprising a processing table, a turntable mounted on the top of the processing table via a cam divider, and a processing mechanism provided on the processing table for processing lenses, the processing mechanism comprising:

[0007] The positioning assembly includes several positioning seats arranged circumferentially on the outer edge of the top of the turntable. Inside the upper part of the positioning seat, four circumferentially distributed slide seats are fixed. A double-ended rack is slidably installed inside the slide seat. A positioning head is installed on the top of the double-ended rack. Guide gears are provided on both sides of the slide seat and mesh with the double-ended rack for transmission. The guide gears are rotatably installed on the positioning seat. A central gear is rotatably installed at the center of the lower end of the positioning seat. Four circumferentially distributed transmission gears are rotatably installed at the bottom of the positioning seat and mesh with the central gear for transmission. Four circumferentially distributed driven gears are rotatably installed at the bottom of the positioning seat and fixed to the lower end of the guide gears.

[0008] The inspection component is set on the processing table and used for lens inspection.

[0009] Preferably, the positioning assembly further includes a housing fixed to the outer wall of the positioning seat, a motor installed inside the housing, and a drive gear fixed to the output end of the motor and meshing with one of the driven gears for transmission.

[0010] Preferably, the positioning component further includes a base fixed to the bottom of the positioning seat, a top seat fixed to the top of the positioning seat, and four circumferentially distributed pads fixed to the center of the top of the top seat.

[0011] Preferably, the positioning component further includes grooves formed at both ends of the slide.

[0012] Preferably, the detection component includes a stand fixed to one side of the top of the processing table, a lower mounting frame fixed to the lower end of the stand, a photoelectric sensor mounted on the lower mounting frame, and an upper mounting frame fixed to the upper end of the stand, a laser light source fixed on the upper mounting frame.

[0013] Preferably, the detection assembly further includes a central mounting bracket fixed in the middle of the stand, with a collimating lens mounted at the bottom of the central mounting bracket. Beneficial effects

[0014] This invention provides a transmittance testing device for optical lens manufacturing. Compared with the prior art, it has the following advantages:

[0015] 1. The motor output drives the drive gear to rotate, which in turn drives the center gear to rotate through the driven gear and transmission gear, forming an efficient power transmission chain. When the center gear rotates, it drives the driven gear to rotate through the transmission gear. The driven gear drives the double-ended rack to slide along the inside of the slide block through the guide gear. The double-ended rack drives the positioning head to position the lens in the center. The symmetrical design ensures the uniform distribution of positioning force, preventing the lens from shifting or deforming during clamping. Furthermore, the synchronous retraction and extension of the four positioning heads can quickly adapt to lenses of different diameters, achieving precise centering and positioning.

[0016] 2. A specific wavelength beam emitted by a laser source is incident perpendicularly onto the lens under test. The transmitted light signal is received by a photoelectric sensor and converted into an electrical signal. The transmittance is calculated by comparing the ratio of the incident light intensity to the transmitted light intensity. Furthermore, through the optical processing of a collimating lens, the original beam emitted by the laser source is transformed into a highly parallel collimated beam, forming a standard detection optical path. This effectively eliminates measurement errors caused by beam divergence, improves detection accuracy, ensures that the light penetrates the lens under test at a standard perpendicular angle, and guarantees data reliability. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of this utility model;

[0018] Figure 2 is a schematic diagram of the detection component in this utility model;

[0019] Figure 3 is a schematic diagram of the positioning component in this utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the lower end of the positioning component in this utility model;

[0021] Figure 5 is a schematic diagram of the internal structure of the upper end of the positioning component in this utility model;

[0022] Figure 6 is a schematic diagram of the positioning head in this utility model.

[0023] In the diagram: 1. Machining table; 2. Turntable; 3. Machining mechanism; 31. Positioning component; 311. Positioning seat; 312. Slide; 313. Double-ended rack; 314. Positioning head; 315. Guide gear; 316. Center gear; 317. Transmission gear; 318. Driven gear; 319. Housing; 3110. Motor; 3111. Drive gear; 3112. Base; 3113. Top seat; 3114. Gasket; 3115. Groove; 32. Detection component; 321. Stand; 322. Lower mounting bracket; 323. Photoelectric sensor; 324. Upper mounting bracket; 325. Laser light source; 326. Middle mounting bracket; 327. Collimating lens. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6. This utility model provides a technical solution: a transmittance testing device for optical lens production, including a processing table 1, a turntable 2 mounted on the top of the processing table 1 via a cam divider, and a processing mechanism 3 disposed on the processing table 1 for processing lenses. The processing mechanism 3 includes:

[0026] The positioning assembly 31 includes several positioning seats 311 arranged circumferentially on the outer edge of the top of the turntable 2. Four circumferentially distributed slide seats 312 are fixed inside the upper end of the positioning seats 311. A double-ended rack 313 is slidably installed inside the slide seats 312. A positioning head 314 is installed on the top of the double-ended rack 313. Guide gears 315 are provided on both sides of the slide seats 312 and mesh with the double-ended rack 313 for transmission. The guide gears 315 are rotatably mounted on the positioning seats 311. A central gear 316 is rotatably mounted at the center of the lower end of the positioning seats 311. Four circumferentially distributed transmission gears 317 are rotatably mounted at the bottom of the positioning seats 311 and mesh with the central gear 316 for transmission. Four circumferentially distributed driven gears 318 are rotatably mounted at the bottom of the positioning seats 311 and fixed to the lower end of the guide gears 315.

[0027] The detection component 32 is set on the processing table 1 and is used for lens detection.

[0028] In this embodiment, when the central gear 316 rotates, it drives the driven gear 318 to rotate through the transmission gear 317. The driven gear 318 drives the double-ended rack 313 to slide along the inside of the slide block 312 through the guide gear 315. The double-ended rack 313 drives the positioning head 314 to position the central lens. The symmetrical arrangement ensures the uniform distribution of positioning force, avoiding lens displacement or deformation during clamping. Furthermore, the synchronous retraction and extension of the four positioning heads 314 can quickly adapt to lenses of different diameters, achieving precise centering and positioning.

[0029] Specifically, the positioning component 31 also includes a housing 319 fixed to the outer wall of the positioning seat 311. A motor 3110 is installed inside the housing 319. The output end of the motor 3110 is fixed with a drive gear 3111 and meshes with one of the driven gears 318 for transmission.

[0030] In this embodiment, the output end of the motor 3110 drives the drive gear 3111 to rotate, and the drive gear 3111 drives the center gear 316 to rotate through the driven gear 318 and the transmission gear 317, forming an efficient power transmission chain.

[0031] Specifically, the positioning component 31 also includes a base 3112 fixed to the bottom of the positioning seat 311, a top seat 3113 fixed to the top of the positioning seat 311, and four circumferentially distributed pads 3114 fixed to the center of the top of the top seat 3113.

[0032] In this embodiment, four circumferentially distributed pads 3114 are made of elastic buffer material and directly contact the edge of the lens. When the positioning head 314 applies clamping force, the pads 3114 absorb mechanical stress through deformation, which not only achieves stable positioning of the lens, but also avoids direct contact between the metal parts and the surface of the optical lens.

[0033] Specifically, the positioning component 31 also includes grooves 3115 formed at both ends of the slide 312.

[0034] In this embodiment, the groove 3115 provides the necessary clearance space for the meshing motion of the double-ended rack 313 and the guide gear 315, ensuring that the gear transmission system can operate smoothly without being restricted by the slide block 312 structure.

[0035] Specifically, the detection component 32 includes a stand 321 fixed to one side of the top of the processing table 1, a lower mounting bracket 322 fixed to the lower end of the stand 321, a photoelectric sensor 323 mounted on the lower mounting bracket 322, an upper mounting bracket 324 fixed to the upper end of the stand 321, and a laser light source 325 fixed on the upper mounting bracket 324.

[0036] In this embodiment, a specific wavelength light beam emitted by a laser light source 325 is perpendicularly incident on the lens under test. The transmitted light signal is received by a photoelectric sensor 323 and converted into an electrical signal. The transmittance is calculated by comparing the ratio of the incident light intensity to the transmitted light intensity.

[0037] Specifically, the detection component 32 also includes a central mounting bracket 326 fixed in the middle of the stand 321, and a collimating lens 327 is mounted at the bottom of the central mounting bracket 326.

[0038] In this embodiment, the original beam emitted by the laser source 325 is converted into a highly parallel collimated beam through the optical processing of the collimating lens 327, forming a standard detection optical path. This effectively eliminates measurement errors caused by beam divergence, improves detection accuracy, ensures that the light penetrates the lens under test at a standard vertical angle, and guarantees data reliability.

[0039] The working principle and usage process of this utility model are as follows: First, the output end of the motor 3110 drives the drive gear 3111 to rotate. The drive gear 3111 drives the center gear 316 to rotate through the driven gear 318 and the transmission gear 317, forming an efficient power transmission chain. When the center gear 316 rotates, it drives the driven gear 318 to rotate through the transmission gear 317. The driven gear 318 drives the double-ended rack 313 to slide along the inside of the slide block 312 through the guide gear 315. The double-ended rack 313 drives the positioning head 314 to position the central lens. The symmetrical design ensures the uniform distribution of the positioning force, avoiding lens displacement or deformation during clamping. Furthermore, the synchronous retraction and extension of the four positioning heads 314 can quickly adapt to lenses of different diameters, achieving precise centering and positioning.

[0040] Then, a specific wavelength beam emitted by the laser source 325 is perpendicularly incident on the lens under test. The transmitted light signal is received by the photoelectric sensor 323 and converted into an electrical signal. The transmittance is calculated by comparing the ratio of the incident light intensity to the transmitted light intensity. Furthermore, through the optical processing of the collimating lens 327, the original beam emitted by the laser source 325 is converted into a highly parallel collimated beam, forming a standard detection optical path. This effectively eliminates measurement errors caused by beam divergence, improves detection accuracy, ensures that the light penetrates the lens under test at a standard perpendicular angle, and guarantees data reliability.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmittance testing device for optical lens production, comprising a processing table (1), wherein a turntable (2) is mounted on the top of the processing table (1) via a cam divider, characterized in that: The processing table (1) is equipped with a processing mechanism (3) for processing lenses. The processing mechanism (3) includes a positioning component (31), which includes several positioning seats (311) arranged circumferentially on the outer edge of the top of the turntable (2). The upper end of the positioning seat (311) is fixed with four circumferentially arranged slide seats (312). A double-ended rack (313) is slidably installed inside the slide seat (312). A positioning head (314) is installed on the top of the double-ended rack (313). Guide gears (315) are provided on both sides of the slide seat (312) and are connected to the double-ended rack. (313) meshing transmission, and the guide gear (315) is rotatably mounted on the positioning seat (311). The center gear (316) is rotatably mounted at the center of the lower end of the positioning seat (311). Four circumferentially distributed transmission gears (317) are rotatably mounted at the bottom of the positioning seat (311) and mesh with the center gear (316). Four circumferentially distributed driven gears (318) are rotatably mounted at the bottom of the positioning seat (311) and fixed to the lower end of the guide gear (315). The detection component (32) is set on the processing table (1) and used for lens detection.

2. The transmittance testing device for optical lens production according to claim 1, characterized in that: The positioning assembly (31) also includes a housing (319) fixed to the outer wall of the positioning seat (311). A motor (3110) is installed inside the housing (319). The output end of the motor (3110) is fixed with a drive gear (3111) and meshes with one of the driven gears (318) for transmission.

3. The transmittance testing device for optical lens production according to claim 1, characterized in that: The positioning component (31) also includes a base (3112) fixed to the bottom of the positioning seat (311), a top seat (3113) fixed to the top of the positioning seat (311), and four circumferentially distributed pads (3114) fixed to the center of the top of the top seat (3113).

4. The transmittance testing device for optical lens production according to claim 1, characterized in that: The positioning component (31) also includes grooves (3115) formed at both ends of the slide (312).

5. The transmittance testing device for optical lens production according to claim 1, characterized in that: The detection component (32) includes a stand (321) fixed on one side of the top of the processing table (1), a lower mounting bracket (322) fixed at the lower end of the stand (321), a photoelectric sensor (323) mounted on the lower mounting bracket (322), an upper mounting bracket (324) fixed at the upper end of the stand (321), and a laser light source (325) fixed on the upper mounting bracket (324).

6. The transmittance testing device for optical lens production according to claim 5, characterized in that: The detection component (32) also includes a central mounting bracket (326) fixed in the middle of the stand (321), and a collimating lens (327) is installed at the bottom of the central mounting bracket (326).

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