CN216115791U - Lens space ring air space measuring device - Google Patents
Lens space ring air space measuring device Download PDFInfo
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- CN216115791U CN216115791U CN202122353002.7U CN202122353002U CN216115791U CN 216115791 U CN216115791 U CN 216115791U CN 202122353002 U CN202122353002 U CN 202122353002U CN 216115791 U CN216115791 U CN 216115791U
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Abstract
The utility model relates to a lens space ring air space measuring device. Including base and measuring unit, the base middle part sets up and is equipped with first location chamber and second location chamber, and measuring unit includes measuring part and measurement frock, and measuring part includes sleeve, probe and display device. The utility model can quickly detect the space ring of the optical lens, and the device has simple operation, no damage to the lens and high measurement precision.
Description
Technical Field
The utility model relates to the field of lenses, in particular to a lens space ring air space measuring device.
Background
In the design process of the lens structure, the spacer is one of the most important components, and is used for bearing the gap between the front lens and the rear lens. The thickness of the spacer ring directly affects whether the gap between the front and rear lenses meets the design value of the optical design. Therefore, it is very important to measure the air gap of the spacer.
The measurement mode in traditional air clearance piles up through two pieces of lenses and spacer ring, measures the distance of first piece of lens central point to second piece of lens central point and subtracts second piece of lens central point thickness, and this method has following drawback:
1. when the spacer ring to be measured is replaced, the second lens needs to be repeatedly taken and replaced, so that the efficiency is low;
2. when measuring the air gap of a new space ring, the center point of the second lens needs to be repeatedly searched, the time and the labor are consumed, and the lens is easy to scratch;
3. the lens center thickness has tolerance, and the measurement precision is not high due to the lens center thickness deviation in measurement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the lens space ring air space measuring device for quickly detecting the optical lens space ring is simple to operate, does not damage a lens and is high in measuring precision.
The utility model is realized by the following technical scheme: the utility model provides a lens space ring air interval measuring device which characterized in that: the spacer ring to be measured is coaxially mounted on the base, the center shaft of the spacer ring to be measured is positioned in the vertical direction, the center shaft of the spacer ring to be measured is positioned in the center of the base, the base is provided with a second positioning cavity, the inner diameter of the first positioning cavity is larger than that of the second positioning cavity, the first positioning cavity is cylindrical, and the first positioning cavity and the second positioning cavity are coaxial and used for coaxially mounting the spacer ring to be measured; the reference lens is a lens adjacent to the spacer ring to be measured in optical design; when the reference lens and the space ring to be measured are respectively placed in the second positioning cavity and the first positioning cavity, the top surface of the reference lens is higher than the edge of the top of the second positioning cavity so that the inner ring of the bottom surface of the space ring to be measured can be directly pressed above the top surface of the reference lens, and the edge of the top of the first positioning cavity is higher than the top of the space ring to be measured;
the measuring assembly comprises a measuring component and a measuring tool, the measuring component comprises a sleeve extending along the vertical direction, a probe movably connected in the sleeve and capable of moving up and down relative to the sleeve, and a display device connected with the probe and used for displaying the up-and-down movement variation of the probe relative to the sleeve, and the lower end part of the probe is exposed below the sleeve;
the utility model discloses a measuring tool, including measuring the holding ring, measure the top of holding ring, the top of holding ring is opened wide the opening and is stretched into first location chamber and can laminate and place in the roof top of the spacer ring that awaits measuring, the coaxial clearance fit of the internal perisporium of periphery wall and first location chamber of measuring the holding ring is so that probe and benchmark lens are coaxial, and the lower tip top pressure of probe is in benchmark lens top surface top.
For the convenience of dismouting, measure the frock still including connecting and nut, connect and put at telescopic periphery through its middle part through-hole movable sleeve, the upper end periphery wall that connects is equipped with the external screw thread to be equipped with a plurality of minutes on the upper end periphery wall that connects and establish at different circumference positions and from the roof position downwardly extending who connects to connect the cell body of middle part position, each cell body link up to connecting in the middle part through-hole by connecting the periphery wall, nut screw thread lock connects can be in the same place fixed connection on upper portion and the sleeve when connecting on the external screw thread of the upper end periphery wall that connects, also is equipped with the external screw thread at the lower extreme periphery wall that connects, measure holding ring threaded connection on the lower extreme periphery wall that connects.
Preferably, the display device is a dial plate, and the dial plate is fixedly arranged at the upper end of the sleeve or positioned beside the base and connected with the probe through a wireless transmission device or a wired transmission device.
Preferably, the measuring component is a dial indicator.
Preferably, the display device is a display screen, and the display screen is located beside the base and connected with the probe through a wireless transmission device or a wired transmission device.
Preferably, the top edge of the first positioning cavity is 3-5mm higher than the top of the space ring to be measured.
Preferably, the inner diameter of the inner peripheral wall of the first positioning cavity is larger than the outer diameter of the spacer ring to be measured and the outer diameter of the measuring positioning ring by 0.02-0.04 mm.
Preferably, the inner diameter of the second positioning cavity is 0.02-0.04mm larger than the outer diameter of the reference lens.
Compared with the prior art, the utility model has the beneficial effects that:
1. the air interval measuring device for the lens space ring is used for positioning and mounting by matching the measuring positioning ring with the base, and measuring by adopting the telescopic probe, is simple to operate in the measuring process, does not damage the lens, and is high in measuring precision.
2. The lens space ring air interval measuring device can directly adopt the dial indicator as a measuring part, can simplify the design of parts and is convenient for users to use.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is an exploded view of a first embodiment of the present invention;
FIG. 3 is a schematic diagram of an internal structure of the first embodiment of the present invention;
FIG. 4 is a schematic structural diagram according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third embodiment of the present invention.
Description of reference numerals: the method comprises the following steps of 1-base, 11-first positioning cavity, 12-positioning cavity, 2-base lens, 3-spacer ring to be measured, 4-measuring part, 41-sleeve, 42-probe, 43-display device, 5-measuring tool, 51-measuring positioning ring, 52-joint, 521-slot, 53-nut, 6-rotating speed pointer and 7-main pointer.
Detailed Description
The utility model is described in detail below with reference to the following description of the drawings:
the first embodiment is as follows:
as shown in fig. 1-3, a lens space ring air space measuring device mainly includes a base 1 and a measuring component, a second positioning cavity 12 for coaxially mounting a reference lens 2 is arranged in the middle of the base 1, and a central axis is located in the vertical direction, a cylindrical first positioning cavity 11 with an inner diameter larger than that of the second positioning cavity 12 is further arranged above the second positioning cavity 12 of the base 1, and the first positioning cavity 11 and the second positioning cavity 12 have the same axis and are used for coaxially mounting a space ring 3 to be measured; the reference lens 2 is a lens adjacent to the spacer ring 3 to be measured in optical design; when the reference lens 2 and the space ring 3 to be measured are respectively placed in the second positioning cavity 12 and the first positioning cavity 11, the top surface of the reference lens 2 is higher than the top edge of the second positioning cavity 12, so that the inner ring of the bottom surface of the space ring 3 to be measured can be directly pressed above the top surface of the reference lens 2, and the top edge of the first positioning cavity 11 is higher than the top of the space ring 3 to be measured;
the measuring assembly comprises a measuring component 4 and a measuring tool 5, wherein the measuring component 4 comprises a sleeve 41 extending along the vertical direction, a probe 42 movably connected in the sleeve 41 and capable of moving up and down relative to the sleeve 41, and a display device 43 connected with the probe 42 and used for displaying the up-and-down movement variation of the probe 42 relative to the sleeve 41, and the lower end part of the probe 42 is exposed below the sleeve 41;
measure frock 5 including fixed mounting at sleeve 41 periphery and periphery wall and the coaxial measurement holding ring 51 of probe 42, the inside of measuring holding ring 51 is hollow cavity, the lower tip of probe 42 is located the cavity of measuring holding ring 51, the open mouth in upper portion that the bottom of measuring holding ring 51 passed first location chamber 11 stretches into in first location chamber 11 and can laminate and place in the roof top of the spacer ring 3 that awaits measuring, the coaxial clearance fit of the internal perisporium of periphery wall and first location chamber 11 of measuring holding ring 51 is so that probe 42 is coaxial with benchmark lens 2, and the lower tip top pressure of probe 42 is in 2 top surfaces of benchmark lens. In the present embodiment, a lenticular lens is used as the base lens, and may be a concave lens.
In order to facilitate the disassembly and assembly, the measuring tool 5 further comprises a connector 52 and a nut 53, the connector 52 is movably sleeved on the periphery of the sleeve 41 through a middle through hole of the connector 52, an outer peripheral wall of the upper end of the connector 52 is provided with external threads, a plurality of groove bodies 521 which are respectively arranged at different circumferential positions and extend downwards from the top wall of the connector 52 to the middle position of the connector 52 are arranged on the outer peripheral wall of the upper end of the connector 52, each groove body 521 penetrates through the middle through hole of the connector 52 through the outer peripheral wall of the connector 52, the nut 53 is in threaded locking connection with the external threads on the outer peripheral wall of the upper end of the connector 52 to fixedly connect the upper portion of the connector 52 and the sleeve 41 together, external threads are also arranged on the outer peripheral wall of the lower end of the connector 52, and the measuring positioning ring 51 is in threaded connection with the outer peripheral wall of the lower end of the connector 52.
Preferably, the display device 43 is a dial plate fixedly disposed at an upper end of the sleeve 41.
Preferably, the measuring means 4 is a dial indicator.
Preferably, the top edge of the first positioning cavity 11 is 3-5mm higher than the top of the spacer ring 3 to be measured.
Preferably, the inner diameter of the inner peripheral wall of the first positioning cavity 11 is larger than the outer diameter of the spacer ring 3 to be measured and the outer diameter of the measuring positioning ring 51 by 0.02-0.04 mm.
The working principle and process of the embodiment are as follows:
firstly, sleeving a connector 52 on the periphery of a sleeve 41 of a dial indicator, locking a screw cap 53 and a measuring positioning ring 51, firstly placing a reference spacer ring in a base 1 provided with a reference lens 2, embedding the measuring positioning ring 51 into the base 1, completely attaching the bottom end face of the measuring positioning ring 51 to the reference spacer ring, then adjusting the height of the measuring positioning ring 51, enabling a revolution pointer 6 of the dial indicator to be within a measuring range, shifting a dial of the dial indicator, and enabling a main pointer 7 to return to zero; change the benchmark space ring for being surveyed the space ring, will measure holding ring 51 and inlay to base 1 in, make the bottom terminal surface of measuring holding ring 51 laminate completely on being surveyed the space ring, and probe 42 top is on base lens 2, according to the numerical value of benchmark space ring and the tolerance that the drawing gave, carries out the reading through the amesdial dial plate scale to judge whether qualified by the air clearance of surveying the space ring.
Example two:
as shown in fig. 4, the present embodiment is different from the first embodiment in that: the display device 43 is a dial plate which is located beside the base 1 and is connected with the probe 42 through wireless or wired connection.
Example three:
as shown in fig. 5, the present embodiment is different from the first embodiment in that: the display device 43 is a display screen, which is located beside the base 1 and connected with the probe 42 through wireless or wired connection.
While the utility model has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the utility model. It is understood, therefore, that the utility model is not to be in any way limited except by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lens space ring air interval measuring device which characterized in that: the device comprises a base (1) and a measuring assembly, wherein a second positioning cavity (12) which is used for coaxially mounting a reference lens (2) and has a central shaft in the vertical direction is arranged in the middle of the base (1), a first cylindrical positioning cavity (11) with the inner diameter larger than that of the second positioning cavity (12) is also arranged above the second positioning cavity (12) of the base (1), and the first positioning cavity (11) and the second positioning cavity (12) have the same shaft and are used for coaxially mounting a spacer ring (3) to be measured; the reference lens (2) is a lens adjacent to the spacer ring (3) to be measured in optical design; when the reference lens (2) and the space ring (3) to be measured are respectively placed in the second positioning cavity (12) and the first positioning cavity (11), the top surface of the reference lens (2) is higher than the top edge of the second positioning cavity (12) so that the inner ring of the bottom surface of the space ring (3) to be measured can be directly pressed above the top surface of the reference lens (2), and the top edge of the first positioning cavity (11) is higher than the top of the space ring (3) to be measured;
the measuring assembly comprises a measuring component (4) and a measuring tool (5), the measuring component (4) comprises a sleeve (41) extending along the vertical direction, a probe (42) movably connected in the sleeve (41) and capable of moving up and down relative to the sleeve (41), and a display device (43) connected with the probe (42) and used for displaying the up-and-down movement variation of the probe (42) relative to the sleeve (41), and the lower end part of the probe (42) is exposed below the sleeve (41);
measure frock (5) including fixed mounting at sleeve (41) periphery and periphery wall and probe (42) coaxial measurement holding ring (51), the inside of measuring holding ring (51) is hollow cavity, the lower tip of probe (42) is located the hollow cavity of measuring holding ring (51), the bottom of measuring holding ring (51) is passed the upper portion of first location chamber (11) and is opened wide the mouth and stretch into first location chamber (11) and can laminate and place in the roof top of the spacer ring (3) that awaits measuring, the coaxial clearance fit of the internal perisporium of periphery wall and first location chamber (11) of measuring holding ring (51) is so that probe (42) are coaxial with benchmark lens (2), and the lower tip top pressure of probe (42) is in benchmark lens (2) top surface top.
2. The lens spacer air interval measuring device according to claim 1, characterized in that: the measuring tool (5) further comprises a joint (52) and a screw cap (53), the joint (52) is movably sleeved on the periphery of the sleeve (41) through a through hole in the middle of the joint, an external thread is arranged on the outer peripheral wall of the upper end of the joint (52), and the peripheral wall of the upper end of the joint (52) is provided with a plurality of groove bodies (521) which are respectively arranged at different circumferential positions and extend downwards from the top wall position of the joint (52) to the middle position of the joint (52), each groove body (521) penetrates through a through hole in the middle of the joint (52) from the peripheral wall of the joint (52), the upper part of the joint (52) can be fixedly connected with the sleeve (41) when the nut (53) is in threaded locking connection with the external thread of the peripheral wall of the upper end of the joint (52), the outer peripheral wall of the lower end of the joint (52) is also provided with external threads, and the measuring positioning ring (51) is in threaded connection with the outer peripheral wall of the lower end of the joint (52).
3. The lens spacer air interval measuring device according to claim 1, characterized in that: the display device (43) is a dial plate, and the dial plate is fixedly arranged at the upper end of the sleeve (41) or positioned beside the base (1) and connected with the probe (42) through a wireless transmission device or a wired transmission device.
4. The lens spacer air interval measuring device according to claim 1, characterized in that: the measuring component (4) is a dial indicator.
5. The lens spacer air interval measuring device according to claim 1, characterized in that: the display device (43) is a display screen, and the display screen is located beside the base (1) and is connected with the probe (42) through a wireless transmission device or a wired transmission device.
6. The lens spacer air interval measuring device according to claim 1, characterized in that: the top edge of the first positioning cavity (11) is 3-5mm higher than the top of the space ring (3) to be measured.
7. The lens spacer air interval measuring device according to claim 1, characterized in that: the inner diameter of the inner peripheral wall of the first positioning cavity (11) is larger than the outer diameter of the space ring (3) to be measured and the outer diameter of the measuring positioning ring (51) by 0.02-0.04 mm.
8. The lens spacer air interval measuring device according to claim 1, characterized in that: the inner diameter of the second positioning cavity (12) is 0.02-0.04mm larger than the outer diameter of the reference lens (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353002.7U CN216115791U (en) | 2021-09-27 | 2021-09-27 | Lens space ring air space measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353002.7U CN216115791U (en) | 2021-09-27 | 2021-09-27 | Lens space ring air space measuring device |
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| Publication Number | Publication Date |
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| CN216115791U true CN216115791U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122353002.7U Active CN216115791U (en) | 2021-09-27 | 2021-09-27 | Lens space ring air space measuring device |
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| CN (1) | CN216115791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608509A (en) * | 2022-03-23 | 2022-06-10 | 东莞市宇瞳光学科技股份有限公司 | Detection mechanism and detection method |
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2021
- 2021-09-27 CN CN202122353002.7U patent/CN216115791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608509A (en) * | 2022-03-23 | 2022-06-10 | 东莞市宇瞳光学科技股份有限公司 | Detection mechanism and detection method |
| CN114608509B (en) * | 2022-03-23 | 2023-01-10 | 东莞市宇瞳光学科技股份有限公司 | Detection mechanism and detection method |
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