An optical glass lens testing apparatus

Abstract

The application discloses an optical glass lens testing equipment, and belongs to the technical field of optical detection. The optical glass lens testing equipment comprises a testing seat, a testing disc is arranged on the testing seat, an opening is formed in one end of the testing disc, an optical glass lens feeding disc is arranged at the opening, an inner disc body is arranged on the testing disc, the inner disc body is connected with a testing turntable through a rotating piece, and the testing turntable is connected with a suction self-rotation piece for driving the optical glass lens to rotate through a plurality of connecting support pieces. The optical glass lens is driven to revolve around a circle by the testing turntable, and the self-rotation is driven by a self-rotation gear ring, so that the detection of the optical glass lens is simultaneously completed in the moving process. The geometric center of the lens is vertically irradiated by a light emitter, and whether the light signal is received by a ring laser receiver is used to directly judge the offset between the geometric center and the optical center, so that the detection of the optical glass lens is achieved, and the detection precision is high, and the detection efficiency is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of optical testing technology, and in particular to an optical glass lens testing device. Background Technology

[0002] Lens bonding is a key process in optical manufacturing. It involves bonding two or more lenses with different optical properties using transparent optical adhesive to form a composite lens assembly, thereby correcting aberrations and improving image quality. After bonding, the lenses must be free of internal air bubbles, the centering error of the bonding surface must be controlled within allowable limits, and the offset between the geometric center and the optical center must meet stringent standards. These parameters directly affect the performance and reliability of the optical system; therefore, the inspection of bonded lenses is a crucial step in ensuring the quality of the finished product.

[0003] Currently, the inspection of cemented lenses mainly relies on manual operation combined with specialized instruments, which suffers from low efficiency, high subjectivity, and difficulty in ensuring consistency. Especially when detecting the offset between the geometric center and optical center, and centering errors, traditional methods are cumbersome and time-consuming, making them unsuitable for the high-efficiency quality inspection requirements of mass production. Furthermore, lens misalignment caused by abnormal curing during the bonding process, if not detected in time, will lead to difficulties in subsequent assembly, decreased system imaging quality, and increased production costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an optical glass lens testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An optical glass lens testing device includes a test base, a test plate on the test base, an opening at one end of the test plate and an optical glass lens loading tray at the opening, an inner plate on the test plate, a test turntable connected to the inner plate via a rotating component, and an adsorption spinner connected to the test turntable via multiple connecting support rods to drive the optical glass lens to rotate.

[0007] The adsorption spin element includes a test column connected to a connecting support rod. The bottom of the test column is connected to a mounting pressure plate via an upward repositioning component. The mounting pressure plate is rotatably connected to a test suction cup. The test suction cup is connected to the inner disk body via a driving spin element for driving the optical glass lens to rotate.

[0008] The bottom of the inner disk is provided with a ring laser receiver, and the adsorption spin element is provided with a laser emitter. The laser emitter emits a light source that penetrates the geometric center of the optical glass lens and is connected to the ring laser receiver for signal detection of whether there is a deviation between the geometric center and the optical center of the optical glass lens.

[0009] The inner wall of the inner disc is provided with rows of pressure-contact testing elements for detecting the bonding quality of optical glass lenses.

[0010] As a preferred embodiment, the outer wall of the inner disc is provided with a mounting groove, and the pressure contact detection element is disposed in the mounting groove;

[0011] The pressure contact detection element includes a conductive ball connected to the inner wall of the mounting groove via a fixed rod. Each end of the conductive ball is provided with a pressure contact post, and the pressure contact post and the conductive ball are rotatably connected through a ball groove.

[0012] As a preferred embodiment, the conductive ball is provided with a through conductive body, and the pressure contact post is provided with an elastic conductive post at the ball groove. When the elastic conductive post comes into contact with the through conductive body, an electrical signal can be connected.

[0013] As a preferred embodiment, the upward resetting component includes a through-hole opened on the mounting pressure plate, the bottom end of the test column extends downward through the through-hole and is connected to a reset plate, and the reset plate is connected to the bottom of the mounting pressure plate through a reset spring sleeved on the test column.

[0014] An electromagnetic control ring is provided on the outer wall of the test column, and a fixed magnetic ring that repels the magnetic force of the electromagnetic control ring is provided on the mounting plate.

[0015] As a preferred embodiment, the laser emitter is vertically mounted at the bottom of the test column, corresponding to the position of the ring laser receiver, and the geometric center of the optical glass lens is located on the laser path of the laser emitter.

[0016] As a preferred embodiment, the driving rotation component includes a rotating gear fixedly disposed on the outer wall of the test suction cup, and a self-driving gear ring adapted to the rotating gear is fixedly connected to the outer wall of the inner disk.

[0017] As a preferred embodiment, the rotating component includes a control motor disposed within the inner disk body, the output end of the control motor being connected to the test turntable, the test turntable being rotatably disposed on the inner disk body, and the connecting support rod being fixedly disposed on the test turntable.

[0018] As a preferred embodiment, a test blocking cover is provided around the test disk, and an outer positioning strip is provided inside the test blocking cover to position the optical glass lens.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention drives an optical glass lens to revolve around a test turntable and rotates it via a rotating gear ring, enabling the optical glass lens to be detected synchronously during its movement. The optical emitter vertically illuminates the geometric center of the lens, and the offset between the geometric center and the optical center is directly determined by whether the ring laser receiver receives the light signal, thus achieving the detection of the optical glass lens with high accuracy and significantly improved detection efficiency.

[0021] 2. This invention addresses the positioning error of glued optical glass lenses by utilizing a pressure-sensitive detection component that uses a linkage structure between a conductive ball and a pressure-sensitive post to sense the pressure distribution on the outer edge of the lens in real time. When the glued optical glass lens becomes uneven due to displacement, the pressure-sensitive post experiences uneven force, triggering the circuit to disconnect, thus achieving the effect of accurately detecting defective products.

[0022] 3. This invention, through the innovative combination of automated motion control, laser optical sensing, and electromechanical linkage pressure contact detection, achieves efficient, accurate, and non-destructive testing of optical center offset and centering error of cemented lenses. It not only significantly improves testing efficiency and reliability and reduces production costs, but also provides strong technical support for the quality of cemented lenses in high-end optical systems. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly structure of an optical glass lens testing device proposed in this invention;

[0024] Figure 2 This is a three-dimensional structural diagram of an optical glass lens testing device proposed in this invention;

[0025] Figure 3 This is a schematic diagram of the combined state structure of an optical glass lens testing device proposed in this invention;

[0026] Figure 4 This is a schematic diagram of the structural assembly of the inner disk in an optical glass lens testing device proposed in this invention;

[0027] Figure 5 This is a schematic diagram of the adsorption spin element in an optical glass lens testing device proposed in this invention;

[0028] Figure 6 This is a schematic diagram of the structure of the pressure contact detection element in an optical glass lens testing device proposed in this invention;

[0029] Figure 7 This is a test flowchart of an optical glass lens testing device proposed in this invention.

[0030] In the diagram: 1. Test plate; 2. Optical glass lens loading plate; 3. Inner plate; 4. Test turntable; 5. Connecting support rod; 6. Test column; 7. Mounting pressure plate; 8. Test suction cup; 9. Pressure contact detection element; 901. Conductive ball; 902. Pressure contact column; 903. Through-conductor; 904. Elastic conductive column; 10. Ring laser receiver; 11. Laser emitter; 12. Reset plate; 13. Electromagnetic control ring; 14. Fixed magnetic ring; 15. Rotating gear; 16. Self-driving gear ring; 17. Control motor; 18. Outer positioning bar; 19. Test blocking cover. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example, refer to Figures 1 to 7An optical glass lens testing device includes a test base, a test plate 1 on the test base, an opening at one end of the test plate 1, and an optical glass lens loading tray 2 at the opening. An inner plate 3 is provided on the test plate 1, and a test turntable 4 is connected to the inner plate 3 via a rotating component. Further, the rotating component includes a control motor 17 disposed within the inner plate 3, and the output end of the control motor 17 is connected to the test turntable 4. The test turntable 4 is rotatably disposed on the inner plate 3, and a connecting support rod 5 is fixedly disposed on the test turntable 4. By rotating the control motor 17, the adsorption spinner fixed to the inner plate 3 via the connecting support rod 5 is driven to rotate, thereby causing the optical glass lens to be tested to move (revolve) on the test plate 1. During the movement, the optical glass lens is tested item by item.

[0035] The test turntable 4 is connected to an adsorption spinner that drives the optical glass lens to rotate via multiple connecting support rods 5. The adsorption spinner includes a test column 6 connected to the connecting support rods 5. The bottom of the test column 6 is connected to a mounting plate 7 via an upward reset member. Further, the upward reset member includes a through-hole opened on the mounting plate 7. The bottom end of the test column 6 extends downward through the through-hole and is connected to a reset plate 12. The reset plate 12 is connected to the bottom of the mounting plate 7 via a reset spring sleeved on the test column 6.

[0036] It is worth noting that when the electromagnetic control ring 13 is de-energized and demagnetized, the reset plate 12 under the action of the reset spring will automatically move the test suction cup 8, which was originally squeezed downward, upward to reset it, so that the adsorption contact between the test suction cup 8 and the optical glass lens is disengaged.

[0037] An electromagnetic control ring 13 is fixedly installed on the outer wall of the test column 6. A fixed magnetic ring 14 that is magnetically repelled by the electromagnetic control ring 13 is installed on the mounting plate 7. When the electromagnetic control ring 13 is energized, it generates a magnetic force. The fixed magnetic ring 14 that is magnetically repelled by the electromagnetic control ring 13 generates a downward pressure, causing the test suction cup 8 connected to the mounting plate 7 at the bottom to move downward and attract the optical glass lens, thereby achieving the effect of moving the optical glass lens.

[0038] The mounting plate 7 is rotatably connected to the test suction cup 8. The test suction cup 8 is connected to the inner plate 3 through a drive rotation component, which is used to drive the optical glass lens to rotate. The drive rotation component includes a rotation gear 15 fixedly set on the outer wall of the test suction cup 8. A self-driving gear ring 16 adapted to the rotation gear 15 is fixedly connected to the outer wall of the inner plate 3.

[0039] When the adsorption spinner drives the optical glass lens to move (revolve), the spin gear 15 set on the outer wall of the test suction cup 8 will come into contact with the self-driving gear ring 16. While being driven to move, it will automatically rotate the test suction cup 8, thereby causing the optical glass lens set at its bottom to rotate. When the optical glass lens rotates, it can change the position of its geometric center and optical center.

[0040] A ring laser receiver 10 is installed at the bottom of the inner disk 3, and a laser emitter 11 is installed inside the adsorption spin element. The laser emitter 11 emits a light source that penetrates the geometric center of the optical glass lens and is connected to the ring laser receiver 10 for signal detection. This is used to detect whether there is a deviation between the geometric center and the optical center of the optical glass lens. The slit width of the ring laser receiver 10 is sufficient to receive the laser emitter 11 at the vertical angle. It is vertically installed at the geometric center of the optical glass lens. When the offset between the geometric center and the optical center of the optical glass lens is too large, the vertical laser light that is vertically irradiated at the geometric center of the optical glass lens will be deflected by the optical center and refracted at a certain angle. Therefore, it cannot be vertically transmitted to the ring laser receiver 10. The ring laser receiver 10 cannot receive the light signal, which proves that the optical center and the geometric center of the optical glass lens are too offset and do not meet the requirements.

[0041] Furthermore, the laser emitter 11 is vertically mounted at the bottom of the test column 6, corresponding to the position of the ring laser receiver 10. The geometric center of the optical glass lens is located on the laser path of the laser emitter 11. The laser emitter 11 and the ring laser receiver 10 are existing optical sensing elements and are existing technologies, which will not be described in detail here.

[0042] The inner wall of the inner disc 3 is provided with rows of pressure contact detection elements 9 for detecting the bonding quality of optical glass lenses. The outer wall of the inner disc 3 is provided with a mounting groove, and the pressure contact detection elements 9 are installed in the mounting groove. The pressure contact detection elements 9 are connected to an electrical signal sensor to detect the interruption of the electrical signal. When the optical glass lens does not shift after bonding, its inner diameters on both sides are the same. Therefore, the pressure generated on the pressure contact posts 902 on both sides of the pressure contact detection element 9 is the same, and the electrical signal will not be interrupted.

[0043] The test disk 1 is surrounded by a test blocking cover 19, and inside the test blocking cover 19 is an outer positioning strip 18 for positioning the optical glass lens. The outer positioning strip 18 positions the optical glass lens to ensure that the optical glass lens moves along the same path.

[0044] Furthermore, the pressure contact detection element 9 includes a conductive ball 901 connected to the inner wall of the mounting groove via a fixed rod. Both ends of the conductive ball 901 are provided with pressure contact posts 902. The pressure contact posts 902 and the conductive ball 901 are rotatably connected through a ball groove. A through conductor 903 is provided inside the conductive ball 901. An elastic conductive post 904 is provided at the ball groove of the pressure contact post 902. When the elastic conductive post 904 contacts the through conductor 903, an electrical signal can be connected.

[0045] When the optical glass lens shifts, the centering error between the two optical glass lenses will cause one side to bulge and the other side to be concave. At this time, during the rotation of the optical glass lens, when the outer wall of the optical glass lens with a larger centering error comes into contact with the pressure post 902 on both sides, one of the pressure post 902 will be squeezed inward, thereby causing the elastic conductive post 904, which was originally in a vertical state, to misalign with the through conductive body 903, causing the circuit that was originally in a conductive state to break. At this time, the electrical signal sensor receives a signal and concludes that the centering error of the optical glass lens is too large, and it is a defective product.

[0046] refer to Figure 7 During processing, the optical glass lens is placed on the test plate 1 at the concentric position of the test suction cup 8 on the optical glass lens loading tray 2. At this time, the electromagnetic control ring 13 at this position is energized and magnetized, so that the fixed magnetic ring 14, which is magnetically repelled, exerts downward pressure on the test suction cup 8, causing the test suction cup 8 to move downward and squeeze and attract the optical glass lens. Under the action of the test turntable 4, the optical glass lens is moved. During the movement, the self-rotating gear 15 is driven by the self-driving gear ring 16 to drive the test suction cup 8 to rotate, and the optical glass lens is driven to perform self-rotation detection. At this time, the laser emitter 11 generates a vertically downward laser beam at the geometric center of the optical glass lens. When the error between the geometric center and the optical center of the optical glass lens is small, the laser can be transmitted downward through the optical glass lens to the ring laser receiver 10. If it cannot be transmitted, it proves that the deviation between the geometric center and the optical center of the optical glass lens is too large, and it is a defective product.

[0047] During the movement, the optical glass lens moves to the pressure contact detection element 9. The outer wall of the rotating optical glass lens will come into contact with multiple pressure contact detection elements 9 one by one. When the outer wall of the optical glass lens with a large centering error comes into contact with the pressure contact post 902 on both sides, the pressure contact post 902 on one side will be squeezed inward, thereby causing the elastic conductive post 904, which was originally in a vertical state, to be misaligned with the through conductive body 903, causing the circuit that was originally in a conductive state to be broken. At this time, the electrical signal sensor receives a signal and concludes that the centering error of the optical glass lens is too large, and it is a defective product, thereby realizing the effective detection of the optical glass lens.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An optical glass lens testing device, comprising a testing stand, characterized in that, The test base is provided with a test plate (1), one end of the test plate (1) is open, and an optical glass lens loading plate (2) is provided at the opening. The test plate (1) is provided with an inner plate body (3), and the inner plate body (3) is connected to a test turntable (4) through a rotating component. The test turntable (4) is connected to an adsorption spinner that drives the optical glass lens to rotate through multiple connecting support rods (5). The adsorption spin-type component includes a test column (6) connected to the connecting support rod (5). The bottom of the test column (6) is connected to the mounting pressure plate (7) through the upward reset component. The mounting pressure plate (7) is rotatably connected to the test suction cup (8). The test suction cup (8) is connected to the inner disk body (3) through the driving spin-type component and is used to drive the optical glass lens to rotate. The bottom of the inner disk (3) is provided with a ring laser receiver (10), and the adsorption spin element is provided with a laser emitter (11). The laser emitter (11) emits a light source that penetrates the geometric center of the optical glass lens and is connected to the ring laser receiver (10) for detecting whether there is a deviation between the geometric center and the optical center of the optical glass lens. The inner wall of the inner disc (3) is provided with a row of pressure contact test elements (9) for detecting the bonding quality of optical glass lenses. The upward repositioning component includes a through-hole opened on the mounting pressure plate (7), the bottom end of the test column (6) extends downward through the through-hole and is connected to a repositioning plate (12), and the repositioning plate (12) is connected to the bottom of the mounting pressure plate (7) through a repositioning spring sleeved on the test column (6); An electromagnetic control ring (13) is provided on the outer wall of the test column (6), and a fixed magnetic ring (14) that is magnetically repelled by the electromagnetic control ring (13) is provided on the mounting plate (7).

2. The optical glass lens testing device according to claim 1, characterized in that, The inner disc body (3) has an installation groove on its outer side wall, and the pressure contact detection element (9) is installed in the installation groove; The pressure contact detection element (9) includes a conductive ball (901) connected to the inner wall of the mounting groove via a fixed rod. Both ends of the conductive ball (901) are provided with pressure contact posts (902). The pressure contact posts (902) and the conductive ball (901) are rotatably connected through a ball groove.

3. The optical glass lens testing device according to claim 2, characterized in that, The conductive ball (901) is provided with a through conductor (903), and the pressure contact post (902) is provided with an elastic conductive post (904) at the ball groove. When the elastic conductive post (904) contacts the through conductor (903), an electrical signal can be connected.

4. The optical glass lens testing device according to claim 1, characterized in that, The laser emitter (11) is vertically mounted at the bottom of the test column (6), corresponding to the position of the ring laser receiver (10), and the geometric center of the optical glass lens is located on the laser path of the laser emitter (11).

5. The optical glass lens testing device according to claim 1, characterized in that, The driving rotation component includes a rotating gear (15) fixedly mounted on the outer wall of the test suction cup (8), and a self-driving gear ring (16) adapted to the rotating gear (15) is fixedly connected to the outer wall of the inner disc (3).

6. The optical glass lens testing device according to claim 1, characterized in that, The rotating component includes a control motor (17) installed inside the inner plate (3). The output end of the control motor (17) is connected to the test turntable (4). The test turntable (4) is rotatably mounted on the inner plate (3). The connecting support rod (5) is fixedly mounted on the test turntable (4).

7. The optical glass lens testing device according to claim 1, characterized in that, The test disk (1) is surrounded by a test shield (19), and the test shield (19) is provided with an outer positioning strip (18) for positioning the optical glass lens.

Images