CN218097608U

CN218097608U - Device for measuring thickness of lens

Info

Publication number: CN218097608U
Application number: CN202222467255.1U
Authority: CN
Inventors: 张腾飞; 李文渊; 谢胜; 朱周德; 刘强生
Original assignee: Shenzhen Daoxian Technology Co ltd
Current assignee: Shenzhen Daoxian Technology Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-20
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a device for measuring thickness of a lens, which belongs to the technical field of measuring thickness of a lens, and comprises a base, wherein a pillar is fixed at the top of one side of the base, a top frame is fixed at the top of the pillar, a controller is arranged in the middle of the top end of the top frame, a first spectrum sensor is arranged above the base close to the middle part of the base, a second spectrum sensor is arranged at the bottom of the top frame corresponding to the first spectrum sensor, a mounting seat is fixed at the middle part of the pillar, and a lens frame is arranged between the first spectrum sensor and the second spectrum sensor; the utility model discloses, when needing to measure the thickness of lens, place the lens at the lens inslot, later send light through first spectral sensor and second spectral sensor, first spectral sensor receives the reverberation of lens upper surface and lower surface, and received peak difference is the thickness of lens, through this measuring device, can measure the lens automatically, can be applicable to the measurement to different lenses simultaneously.

Description

Device for measuring thickness of lens

Technical Field

The utility model relates to a lens thickness measurement technical field specifically is a device of lens thickness measurement.

Background

A lens is a piece of glass or other curved transparent material or materials used to view objects through which the objects appear clear, large or smaller, and is commonly used in eyeglasses, cameras, telescopes, etc. where a lens thickness gauge is used to measure the thickness of the lens during lens production.

Although the existing lens thickness measuring device has a large number of types and quantity, firstly, the side thickness can not be automatically detected by an altimeter contact type measuring method, and the efficiency is low, and secondly, the thickness of a concave lens or a meniscus lens can not be measured by the method through a projection method, and the thickness of various lenses can not be measured while the thickness of the lenses can be automatically measured, so that the device is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of lens thickness measurement has reached through this measuring device, can measure the lens automatically, can be applicable to the measuring purpose to different lenses simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a device for measuring thickness of lens comprises a base, a pillar is fixed on the top of one side of the base, a top frame is fixed on the top of the pillar, wherein,

the middle part of the top end of the top frame is provided with a controller, the upper part of the base, which is close to the middle part, is provided with a first spectrum sensor, the bottom of the top frame, which corresponds to the first spectrum sensor, is provided with a second spectrum sensor, and the middle part of the strut is fixedly provided with a mounting seat;

be provided with the lens frame between first spectral sensor and the second spectral sensor, the lens frame can be dismantled with the mount pad through quick assembly disassembly mechanism and be connected, the lens groove has been seted up at the middle part of lens frame, the lens has been placed to lens inslot side, the pillar is close to the lens frame about bilateral symmetry install the polaroid.

Preferably, quick assembly disassembly mechanism includes the mounting groove, the mount pad has been seted up near lens frame one side, one side that the lens frame is close to the mounting groove is fixed with the installation pole, the inside transmission groove of having seted up in both sides about the mount pad is close to the mounting groove, the fixed slot has been seted up to the upper and lower bilateral symmetry that the installation pole is located the mounting groove, the fixed rod groove has been seted up to the inner wall that the mount pad corresponds the fixed slot, the top that the mount pad is close to the transmission groove avris is seted up and is pressed the pole groove, the inside in fixed rod groove runs through there is the dead lever, the inside in pressed the pole groove runs through there is the depression bar, the inboard middle part rotation in transmission groove is connected with the gear, the dead lever all is fixed with the driving tooth with one side that the depression bar corresponds the gear, the end fixing that the depression bar is located the mount pad outside has the baffle, the cover has the spring to pressing bar between the depression bar groove on the depression bar.

Preferably, the gear and the transmission gear have the same pitch, and the gear is meshed with the transmission gear.

Preferably, the upper surface of the lens is an S-surface, and the lower surface of the lens is an S-surface.

Preferably, the polaroids are obliquely arranged, and the included angle between the polaroids is 90 degrees.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses, when needing to measure the thickness of lens, place the lens at the lens inslot, later send light through first spectral sensor and second spectral sensor, first spectral sensor receives the reverberation of lens upper surface and lower surface, and received peak difference is the thickness of lens, through this measuring device, can measure the lens automatically, can be applicable to the measurement to different lenses simultaneously.

2. The utility model discloses, when needing to be changed the lens frame, press the both sides depression bar simultaneously, the depression bar is overcome spring force and is removed to transmission inslot side, the depression bar passes through the gear and drives the dead lever with the driving gear and remove towards opposite direction, make the dead lever shift out the fixed slot, can make the installation pole shift out the mounting groove, later take out the lens frame that needs the installation, make the lens frame drive the installation pole and get into in the mounting groove, after the fixed slot aligns with the fixed rod groove, loosen the depression bar, the spring passes through the baffle and drives the depression bar and reset with the dead lever, make the dead lever get into in the fixed slot, can accomplish the height to the lens frame, quick assembly disassembly mechanism through setting, so that change the lens frame fast, so as to place different types of lens.

3. The utility model discloses, get rid of unnecessary reverberation through the polaroid, avoid first spectral sensor to receive the light that second spectral sensor sent, avoid second spectral sensor to receive the light that first spectral sensor sent simultaneously, receive the light of lens multiple reflection through first spectral sensor and second spectral sensor simultaneously, can effectual improvement to the measurement accuracy of lens.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the lens holder of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. a base; 2. a pillar; 3. a top frame; 4. a controller; 5. a first spectral sensor; 6. a second spectral sensor; 7. a mounting seat; 8. a lens frame; 9. mounting grooves; 10. mounting a rod; 11. a transmission groove; 12. a fixing groove; 13. a fixed rod slot; 14. a pressure bar groove; 15. a fixing rod; 16. a pressure lever; 17. a gear; 18. a transmission gear; 19. a baffle plate; 20. a spring; 21. a lens slot; 22. a lens; 23. s1, performing surface treatment; 24. s2, performing surface preparation; 25. a polarizing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1 to 3, the present invention provides a technical solution: a device for measuring thickness of lens comprises a base 1, a pillar 2 fixed on the top of one side of the base 1, a top frame 3 fixed on the top of the pillar 2, wherein,

the middle part of the top end of the top frame 3 is provided with a controller 4, the upper part of the base 1 close to the middle part is provided with a first spectrum sensor 5, the bottom of the top frame 3 corresponding to the first spectrum sensor 5 is provided with a second spectrum sensor 6, and the middle part of the pillar 2 is fixed with a mounting seat 7;

a lens frame 8 is arranged between the first spectrum sensor 5 and the second spectrum sensor 6, the lens frame 8 is detachably connected with the mounting base 7 through a quick assembly and disassembly mechanism, a lens groove 21 is formed in the middle of the lens frame 8, a lens 22 is placed on the inner side of the lens groove 21, and polarizing plates 25 are symmetrically arranged on the upper side and the lower side of the support 2 close to the lens frame 8;

when the thickness of lens 22 needs to be measured, lens 22 is placed in lens groove 21, and then light is emitted through first spectral sensor 5 and second spectral sensor 6, and first spectral sensor 5 receives the reverberation of lens 22 upper surface and lower surface, and the received peak difference is the thickness of lens 22, through this measuring device, can measure lens 22 automatically, can be applicable to the measurement to different lens 22 simultaneously.

Referring to fig. 1 to 3, the quick assembling and disassembling mechanism includes a mounting groove 9, a mounting groove 9 is formed on one side of the mounting seat 7 close to the lens frame 8, a mounting rod 10 is fixed on one side of the lens frame 8 close to the mounting groove 9, transmission grooves 11 are formed inside upper and lower sides of the mounting seat 7 close to the mounting groove 9, fixing grooves 12 are symmetrically formed on upper and lower sides of the mounting rod 10 in the mounting groove 9, fixing rod grooves 13 are formed on an inner wall of the mounting seat 7 corresponding to the fixing grooves 12, a pressing rod groove 14 is formed on a top of the mounting seat 7 close to a side of the transmission groove 11, a fixing rod 15 penetrates through the fixing rod groove 13, a pressing rod 16 penetrates through the pressing rod groove 14, a gear 17 is rotatably connected to a middle portion of an inner side of the transmission groove 11, transmission teeth 18 are fixed on one side of the fixing rod 15 corresponding to the gear 17 with the pressing rod 16, and a baffle 19 is fixed on an end portion of the pressing rod 16 located outside the mounting seat 7, a spring 20 is sleeved on a pressure lever 16 between a baffle 19 and a pressure lever groove 14, the gear 17 is equal to the tooth pitch of a driving tooth 18, the gear 17 is meshed with the driving tooth 18, when the lens frame 8 needs to be replaced, the pressure levers 16 on two sides are pressed simultaneously, the pressure lever 16 overcomes the elasticity of the spring 20 and moves towards the inner side of the driving groove 11, the pressure lever 16 drives a fixed lever 15 to move towards the opposite direction through the gear 17 and the driving tooth 18, so that the fixed lever 15 moves out of a fixed groove 12, an installation lever 10 can move out of an installation groove 9, then the lens frame 8 which needs to be installed is taken out, the installation lever 10 is driven by the lens frame 8 to enter the installation groove 9, after the fixed groove 12 is aligned with a fixed lever groove 13, the pressure lever 16 is loosened, the spring 20 drives the pressure lever 16 to reset through the baffle 19 and the fixed lever 15 to enter the fixed groove 12, the height of the lens frame 8 can be completed, and the lens frame 8 can be replaced quickly through a quick disassembly and assembly mechanism, for placing different kinds of lenses 22.

Referring to fig. 1 to 3, the upper surface of the lens 22 is an S1 surface 23, the lower surface of the lens 22 is an S2 surface 24, the polarizers 25 are obliquely disposed, and an included angle between the polarizers 25 is 90 °, when the thickness of the lens 22 is measured by the first spectrum sensor 5 and the second spectrum sensor 6, the redundant reflected light is removed by the polarizers 25, so that the first spectrum sensor 5 is prevented from receiving the light emitted by the second spectrum sensor 6, the second spectrum sensor 6 is prevented from receiving the light emitted by the first spectrum sensor 5, and the light reflected by the lens 22 for multiple times is received by the first spectrum sensor 5 and the second spectrum sensor 6, which can effectively improve the measurement accuracy of the lens 22.

The working principle is as follows: this device of lens thickness measurement, when needing to measure the thickness of lens 22, place lens 22 in lens groove 21, later send light through first spectrum sensor 5 and second spectrum sensor 6, first spectrum sensor 5 receives the reverberation of lens 22 upper surface and lower surface, the received peak difference is the thickness of lens 22, through this measuring device, can measure lens 22 automatically, simultaneously can be applicable to the measurement to different lens 22, and when needing to change lens frame 8, press both sides depression bar 16 simultaneously, depression bar 16 overcomes spring 20 elasticity and moves to transmission groove 11 inboard, depression bar 16 drives dead lever 15 through gear 17 and driving tooth 18 and moves towards opposite direction, make dead lever 15 shift out fixed slot 12, can make installation pole 10 shift out mounting groove 9, later take out the lens frame 8 that needs to install, make lens frame 8 drive installation pole 10 get into mounting groove 9, after polaroid 12 aligns with fixed lever groove 13, loosen depression bar 16, spring 20 drives depression bar 16 and dead lever 15 through baffle 19 and resets fixed slot, make dead lever 15 get into in 12, can accomplish the height that sets up lens 8, so that the height that the lens frame sets up through the optical spectrum sensor, in order to receive the second spectrum sensor to carry out the second spectrum sensor to receive the second spectrum sensor to carry out the quick change of the spectrum sensor 5 and to the lens 22, and to avoid the effectual spectrum sensor 5 to carry out the second spectrum sensor to the lens 22 to the lens 5 to the lens 22 to the measurement of the second spectrum sensor to the lens 22 when the measurement.

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

Claims

1. A device for measuring thickness of lens comprises a base (1), and is characterized in that: a supporting column (2) is fixed at the top of one side of the base (1), a top frame (3) is fixed at the top of the supporting column (2),

a controller (4) is installed in the middle of the top end of the top frame (3), a first spectrum sensor (5) is installed above the base (1) close to the middle of the top frame, a second spectrum sensor (6) is installed at the bottom of the top frame (3) corresponding to the first spectrum sensor (5), and an installation seat (7) is fixed in the middle of the supporting column (2);

be provided with lens frame (8) between first spectral sensor (5) and second spectral sensor (6), lens frame (8) can be dismantled with mount pad (7) through quick assembly disassembly mechanism and be connected, lens groove (21) have been seted up at the middle part of lens frame (8), lens (22) have been placed to lens groove (21) inboard, bracing piece (2) are close to lens frame (8) upper and lower bilateral symmetry and install polaroid (25).

2. A device for measuring lens thickness according to claim 1, wherein: quick assembly disassembly mechanism includes mounting groove (9), mounting seat (7) are close to lens frame (8) one side and have seted up mounting groove (9), one side that lens frame (8) are close to mounting groove (9) is fixed with installation pole (10), both sides inside transmission groove (11) have been seted up about mounting groove (7) are close to mounting groove (9), upper and lower bilateral symmetry that installation pole (10) are located mounting groove (9) has seted up fixed slot (12), fixed slot (13) have been seted up to the inner wall that mounting seat (7) correspond fixed slot (12), pressure bar groove (14) are seted up at the top that mounting seat (7) are close to transmission groove (11) avris, the inside of fixed bar groove (13) is run through and has dead lever (15), the inside of pressure bar groove (14) is run through and has depression bar (16), the inboard middle part rotation of transmission groove (11) is connected with gear (17), one side that dead lever (15) and depression bar (16) correspond gear (17) all is fixed with tooth (18), depression bar (16) are located the tip that mounting seat (7) outside and are fixed with depression bar (19), depression bar (19) are fixed with depression bar (16) the baffle (20) between depression bar (14).

3. The apparatus for measuring thickness of lens according to claim 2, wherein: the gear (17) and the transmission gear (18) have the same pitch, and the gear (17) is meshed with the transmission gear (18).

4. The apparatus for measuring thickness of lens according to claim 1, wherein: the upper surface of the lens (22) is an S1 surface (23), and the lower surface of the lens (22) is an S2 surface (24).

5. The apparatus for measuring thickness of lens according to claim 1, wherein: the polaroids (25) are obliquely arranged, and the included angle between the polaroids (25) is 90 degrees.