CN111843713A - Lens processing device and lens array - Google Patents

Lens processing device and lens array Download PDF

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Publication number
CN111843713A
CN111843713A CN202010608298.XA CN202010608298A CN111843713A CN 111843713 A CN111843713 A CN 111843713A CN 202010608298 A CN202010608298 A CN 202010608298A CN 111843713 A CN111843713 A CN 111843713A
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CN
China
Prior art keywords
lens
rotary
processing
wheel
processing apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010608298.XA
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Chinese (zh)
Inventor
袁明峰
朱鹏程
凌步军
滕宇
赵有伟
孙月飞
冷志斌
冯高俊
吕金鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yawei Aosi Laser Technology Co ltd
Original Assignee
Jiangsu Yawei Aosi Laser Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Yawei Aosi Laser Technology Co ltd filed Critical Jiangsu Yawei Aosi Laser Technology Co ltd
Priority to CN202010608298.XA priority Critical patent/CN111843713A/en
Publication of CN111843713A publication Critical patent/CN111843713A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005Blocking means, chucks or the like; Alignment devices
    • B24B13/0055Positioning of lenses; Marking of lenses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • G02B3/0012Arrays characterised by the manufacturing method
    • G02B3/0025Machining, e.g. grinding, polishing, diamond turning, manufacturing of mould parts
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • G02B3/0037Arrays characterized by the distribution or form of lenses
    • G02B3/005Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets

Abstract

The invention provides a lens processing device and a lens array, wherein the lens processing device comprises a rotary processing wheel, a plurality of lens slots are arranged at intervals along the outer side wall of the rotary processing wheel, and the lens slots extend along the direction parallel to the rotating shaft of the rotary processing wheel; a rotary drive unit connected with a rotating shaft of the rotary processing wheel; and the lens grinding assembly is far away from the outer side wall of the rotary processing wheel, wherein a drain hole for the grinding liquid to pass through is formed in the lens grinding assembly. When the lens processing device of the invention is used for grinding the lens, the curved surfaces of the convex emergent surfaces of a plurality of cylindrical lenses of the formed lens array can be controlled to keep the same curvature radius on the whole, so that the processing error of the curved surface of the convex emergent surface of each cylindrical lens is minimized.

Description

Lens processing device and lens array
Technical Field
The present invention relates to the field of lens processing technologies, and in particular, to a lens processing apparatus and a lens array.
Background
The laser annealing process refers to a process of irradiating an amorphous silicon film on a substrate with a linear laser beam to crystallize the amorphous silicon film, thereby converting the amorphous silicon film into a polycrystalline silicon film. In order to assemble a polycrystalline silicon film having good crystallinity by a laser annealing process, the energy intensity distribution of a linear laser beam must be uniform and the shape must not be deformed.
In the conventional laser annealing treatment, the laser beam has uniform energy distribution after passing through the homogenizer, but the energy intensity suitable for laser annealing is not enough. Therefore, it is necessary to expand the laser beam into more expanded laser beams by a lens array (composed of a plurality of cylindrical lenses having convex exit surfaces), and then focus the expanded laser beams on the laser beam optical axis by a condenser lens and combine them into one laser beam, by which the energy intensity of the laser beam can be increased to a level sufficient for the laser annealing process.
In order to enable the expanded laser beams to be normally focused and combined, it is necessary to ensure that the curved surface of the convex emitting surface of each cylindrical lens of the lens array as a whole maintains the same curvature radius, and also to maintain the symmetry thereof. This requires that the curved surface of the convex emitting surface of the lenticular lens must be finely processed, and a grinding apparatus for the lenticular lens needs to be well controlled during the processing of the lens to minimize a processing error of the curved surface of the convex emitting surface of each lenticular lens.
However, in the conventional lens processing apparatus, the curved surfaces of the convex exit surfaces of the plurality of cylindrical lenses are generally processed separately, and the processing error generated in the processing of the curved surfaces differs depending on the cylindrical lens. When a lens array is composed using the above-described lenticular lenses, even if a problem occurs with focusing by the condenser lenses, it is difficult to judge and track that a machining error of a certain lenticular lens, which is a plurality of lenticular lenses, exceeds an error range, and it is difficult to minimize the machining error of the curved surface of the convex incidence surface of each lenticular lens by controlling the operation of the lens polishing apparatus.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a lens processing apparatus and a lens array, which are used for solving the technical problem that the lens processing apparatus in the prior art cannot simultaneously process a plurality of cylindrical lenses in batch, so that errors of the lenses are different.
To achieve the above and other related objects, the present invention provides a lens processing apparatus, comprising:
the rotary processing wheel is provided with a plurality of lens slots which are arranged along the outer side wall of the rotary processing wheel at intervals, and the slots extend along the direction parallel to the rotating shaft of the rotary processing wheel;
a rotary drive unit connected with a rotating shaft of the rotary processing wheel; and
and the lens grinding assembly is far away from the outer side wall of the rotary processing wheel, wherein a drain hole for allowing grinding liquid to pass through is formed in the lens grinding assembly.
In an optional embodiment, the lens processing apparatus further comprises an abrasive liquid supply system, and the abrasive liquid supply system is connected to the drain hole.
In an optional embodiment, the lens slots are uniformly arranged along the outer side wall of the rotary processing wheel, and the depth direction of the lens slots is arranged along the radial direction of the rotary processing wheel.
In an optional embodiment, an elastic pressing part is arranged on the inner wall of the lens slot.
In an alternative embodiment, the shape of the rotating process wheel comprises a cylinder or a polygonal column.
In an alternative embodiment, the lens polishing assembly has an arcuate polishing surface with the same radius of curvature as the desired curved surface of the lens.
In an alternative embodiment, the lens processing apparatus further comprises a linear driving unit for linearly reciprocating the rotary processing wheel in a direction parallel to a rotational axis of the rotary processing wheel.
In an alternative embodiment, the rotary drive unit comprises a rotary motor, or a combination of a rotary motor, a turning wheel and a belt.
In an optional embodiment, the lens processing apparatus further includes a polishing assembly adjusting portion for adjusting a distance between the lens polishing assembly and an outer sidewall of the rotating processing wheel and adjusting an angle of the lens polishing assembly.
In an alternative embodiment, the polishing assembly adjustment portion comprises a linear conveying assembly and an angle adjustment assembly.
In order to achieve the above and other related objects, the present invention provides a lens array, which includes a plurality of lenses sequentially arranged along a same direction, wherein the plurality of lenses are formed by processing the lens processing apparatus in one processing process.
When the lens processing device is used for grinding and processing the lens, the curved surfaces of the convex emergent surfaces of a plurality of cylindrical lenses of the formed lens array can be controlled to keep the same curvature radius on the whole, so that the processing error of the curved surface of the convex emergent surface of each cylindrical lens is minimized;
when the lens processing device is used for grinding the lens, the position and the angle of the lens grinding assembly can be adjusted by the adjusting part of the grinding assembly, so that the lens grinding assembly grinds the lens in the optimal grinding posture, and the grinding precision and the grinding efficiency are improved;
when the lens processing device is used for grinding the lens, the damage to the surface of the lens can be prevented, and the processing precision of the curved surface of the lens (cylindrical lens) can be improved;
the lens grinding assembly is provided with the drain hole for the grinding fluid to pass through, and the grinding fluid is added between the grinding surface of the lens grinding assembly and the grinding surface of the lens through the drain hole, so that the grinding efficiency is improved, the abrasion of a grinding tool is reduced, and the optical lens can be protected, degreased, rustproof, cleaned and enhanced in gloss by adding the grinding fluid.
Drawings
Fig. 1 is a schematic perspective view of a lens processing apparatus according to the present invention.
Fig. 2 shows a side view of the lens processing apparatus of the present invention.
Fig. 3 is a partially enlarged view of the area a in fig. 2.
Fig. 4 is a partially enlarged view of the area B in fig. 2.
FIG. 5 is a schematic view showing the adjustment of the lens polishing assembly of the lens processing apparatus of the present invention.
FIG. 6 is a comparative view showing a lens before and after polishing by the lens processing apparatus of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The laser annealing process refers to a process of irradiating an amorphous silicon film on a substrate with a linear laser beam to crystallize the amorphous silicon film, thereby converting the amorphous silicon film into a polycrystalline silicon film. In order to assemble a polycrystalline silicon film having good crystallinity by a laser annealing process, the energy intensity distribution of a linear laser beam must be uniform and the shape must not be deformed. The lens system used in the laser annealing treatment comprises a lens array and a condensing lens which are arranged at intervals; the lens array is composed of a plurality of cylindrical lenses with convex emergent surfaces and is used for expanding laser beams which are incident from the incident side of the lens array and processed by the homogenizer into more laser beams; the condensing lens is used for focusing the expanded laser beams incident from the incident side on the laser beam optical axis and combining the expanded laser beams into a linear laser beam. In the present invention, the laser annealing treatment may be, for example, a laser annealing treatment at a low temperature, and the laser annealing is performed by irradiating excimer laser, which is generated when a molecule formed of a mixed gas of an inert gas and a halogen gas excited by an electron beam transits to a ground state thereof, the excimer laser belongs to a cold laser, has no thermal effect, is a pulse laser having a strong directivity, a high wavelength purity, and a large output power, and has a photon energy wavelength range of 157 to 353 nm, a lifetime of several tens of nanoseconds, and belongs to ultraviolet light. In this annealing process, an excimer laser beam is homogenized by a homogenizer to form a linear cross-sectional shape, and then an amorphous silicon thin film is irradiated to crystallize it to form a polycrystalline silicon film.
However, the laser beam processed directly by the homogenizer may not have sufficient energy intensity suitable for laser annealing although it has a uniform energy distribution. Therefore, the laser beam can be expanded by the lens array to obtain more laser beams, and then the expanded laser beams are focused on the optical axis of the laser beam by the condenser lens and combined into a linear laser beam, and the energy intensity of the laser beam can be increased to a level sufficient for the laser annealing treatment.
In order to enable the expanded laser beams to be normally focused and combined, it is necessary to ensure that the curved surface of the convex emitting surface of each cylindrical lens of the lens array as a whole maintains the same curvature radius, and also to maintain the symmetry thereof. This requires that the curved surface of the convex emitting surface of the lenticular lens must be finely processed, and a grinding apparatus for the lenticular lens needs to be well controlled during the processing of the lens to minimize a processing error of the curved surface of the convex emitting surface of each lenticular lens.
In order to achieve the above object, embodiments of the present invention provide a rotatable lens processing apparatus capable of facilitating control and ensuring that a processing error of a curved surface of a convex projection surface of each lenticular lens of a lens array is minimized. Fig. 1 is a schematic perspective view of a lens processing apparatus according to an embodiment of the present invention; FIG. 2 shows a side view of a lens processing apparatus that is an embodiment of the present invention; FIG. 3 is an enlarged view of a portion of the area A in FIG. 2; FIG. 4 is an enlarged view of a portion of the area B in FIG. 2; fig. 5 is a schematic view illustrating the adjustment of the lens polishing assembly 100 of the lens processing apparatus according to the embodiment of the present invention.
Referring to fig. 1 to 5, the lens processing apparatus includes a rotary processing wheel 200, a rotary driving unit 500 (not shown), a lens polishing assembly 100, a polishing assembly adjusting part (not shown), and a linear driving part (not shown). The lens processing apparatus of the present invention can simultaneously polish and polish the polishing ends 302 of a plurality of lenses 300 (e.g., lenticular lenses) in a predetermined shape.
Referring to fig. 1 to 5, the rotary processing wheel 200 can rotate around a rotation shaft 202 disposed at the center, and a plurality of lens slots 201 for inserting lenses 300 are formed on an outer side wall 203 of the rotary processing wheel 200 along a length direction. Although the rotating process wheel 200 has a cylindrical shape in fig. 1-5, it is understood that the rotating process wheel 200 may take other shapes such as a polygonal prism.
Referring to fig. 1 to 5, in the present embodiment, the lens slots 201 are disposed on the outer sidewall 203 of the rotating processing wheel 200 and are disposed at intervals of a predetermined angle along the axial direction of the cylindrical rotating processing wheel 200, that is, a plurality of the lens slots 201 are uniformly disposed along the outer sidewall 203 of the rotating processing wheel 200, the depth direction of the lens slots 201 is disposed along the radial direction of the rotating processing wheel 200, and the lens slots 201 extend along the direction parallel to the rotation axis 202 of the rotating processing wheel 200 (i.e., the length direction of the rotating processing wheel 200). The number of lens slots 201 formed in the rotary processing wheel 200 may be adjusted according to the number of lenses 300 (for example, lenticular lenses) to be sequentially processed using the rotary processing wheel 200. It is understood that, in other embodiments, the lens slots 201 may also be disposed on the outer sidewall 203 of the rotating processing wheel 200 in a non-uniform arrangement manner, that is, the intervals between two adjacent lens slots 201 in the lens slots 201 may be the same or different.
Referring to fig. 1-5, in the present embodiment, the depth of the lens slot 201 is smaller than the entire length of the lens 300 to be inserted, so that when the lens 300 (such as a cylindrical lens) is inserted into the lens slot 201, the polishing end 302 of the lens 300 extends out of the outer sidewall 203 of the rotating processing wheel 200, and the polishing end 302 of the lens 300 extending out of the outer sidewall 203 of the rotating processing wheel 200 forms the above-mentioned curved surface after being subsequently polished by the lens polishing assembly 100. As an example, referring to fig. 1-6, before polishing, the lens 300 may be, for example, a rectangular parallelepiped, and the polishing end 302 of the lens 300 is rectangular (see the left side in fig. 6), and after polishing, the polishing end 302 of the lens 300 is processed into a curved shape 302' (see the right side in fig. 6).
Referring to fig. 1 to 5, the rotary processing wheel 200 may be made of a hard material such as metal, and in order to process the grinding end 302 of the lens 300 into a curved shape, the lens 300 needs to be inserted into the lens slot 201 for processing. During the process of inserting the lens 300 into the lens insertion groove 201 or the process of processing the lens 300 by rotating the rotating processing wheel 200, the surface of the lens 300 may collide and rub against the surface of the lens insertion groove 201, thereby causing damage to the surface of the lens 300. In addition, in order to facilitate the insertion of the lens 300 into the lens insertion groove 201, the width of the lens insertion groove 201 needs to be designed to be larger than the thickness of the lens 300, which may cause a machining error larger than a preset tolerance to be generated in a curved surface formed after the lens 300 is machined due to a gap between the lens 300 and the lens insertion groove 201 during the grinding process of the lens 300. For this reason, referring to fig. 1 to 5, by providing the elastic pressing portion 400 on the inner wall of the lens insertion slot 201, the elastic pressing portion 400 not only forms a wrap on a part of the surface of the lens 300 inserted into the lens insertion slot 201, but also elastically presses the lens 300 at the same time, thereby preventing the lens 300 from moving during the processing. This can prevent not only damage to the lens 300 during insertion and processing, but also the occurrence of a gap between the lens 300 and the lens insertion groove 201, which may result in the processing accuracy being affected. As an example, the elastic pressing part 400 may be made of an elastic material such as injected silicone, and may be formed in the lens insertion groove 201 by adhesion. Although it is shown in fig. 4 that the elastic pressing part 400 is provided on the inner sidewall and the bottom surface of the lens insertion groove 201, it may be provided only on the inner sidewall or the bottom surface of the lens insertion groove 201.
Referring to fig. 1 to 5, the rotary driving unit 500 is connected to the rotating shaft 202 of the rotary processing wheel 200. Specifically, the rotary drive unit 500 drives the rotary processing wheel 200 to rotate about a rotation axis 202 aligned in parallel with the outer wall 203 of the rotary processing wheel 200. As the rotational driving unit 500 rotates the rotational processing wheel 200 at a certain speed, the polishing ends 302 of the lenses 300 inserted into the lens slots 201 of the rotational processing wheel 200 can be polished by the polishing surface 102 of the lens polishing assembly 100. As an example, the rotary driving unit 500 may be, for example, a rotary motor directly connected to the rotating shaft 202 of the rotary processing wheel 200, or a combination of a rotary motor, a rotating wheel, and a belt.
Referring to fig. 1 to 5, the lens polishing assembly 100 is spaced apart from the outer sidewall 203 of the rotating processing wheel 200 at an adjustable interval, and the lens polishing assembly 100 has an arc-shaped polishing surface 102 having the same curvature radius as that of the desired curved surface of the lens 300, and forms a curved surface at the polishing end 302 of each lens 300 by rubbing against the polishing end 302 of the lens 300 inserted into the lens slot 201 of the rotating processing wheel 200. As an example, in order to machine a convex shape having a certain radius of curvature on the surface of the grinding end 302 of the lens 300, the lens grinding assembly 100 has a concave shape having the same radius of curvature as the curved surface of the lens 300 to be machined. As an example, before grinding, the grinding end 302 of the lens 300 has a rectangular shape, and as the rotating processing wheel 200 rotates, the grinding end 302 of the lens 300 and the grinding surface 102 of the lens grinding assembly 100 are continuously rubbed, so that the shape of the grinding surface 102 of the lens grinding assembly 100 is transferred to the grinding end 302 of the lens 300 to process the grinding end 302 of the lens 300 into a curved surface having a desired radius of curvature.
In the embodiment of the present invention, the lens processing apparatus is further provided with a grinding member adjusting part for adjusting the distance between the lens grinding member 100 and the outer sidewall 203 of the rotating processing wheel 200 (i.e., adjusting the position of the lens grinding member 100), and adjusting the angle of the lens grinding member 100, so that the lens 300 can be more precisely processed to form a curved surface at the grinding end 302 of the lens 300; specifically, the polishing assembly adjusting part includes a linear feeding assembly for adjusting the distance between the lens polishing assembly 100 and the outer sidewall 203 of the rotating processing wheel 200 (i.e., adjusting the position of the lens polishing assembly 100), and an angle adjusting assembly for adjusting the angle of the lens polishing assembly 100, so that the lens 300 can be more precisely processed to form a curved surface at the polishing end 302 of the lens 300. By way of example, the linear transport assembly can be formed, for example, by a threaded part and a linear transmission part, and the angle adjustment assembly can be formed, for example, by a screw arrangement.
The adjustment of the lens polishing assembly 100 by the polishing assembly adjuster will be described in detail below.
First, referring to fig. 1 to 3, during polishing, it is important to adjust the distance between the outer sidewall 203 of the rotating processing wheel 200 and the lens polishing assembly 100 to a distance suitable for curved surface processing of the lens 300 by using the linear transport assembly of the polishing assembly adjusting part. This is because if the distance between the outer sidewall 203 of the rotating processing wheel 200 and the lens polishing assembly 100 is too close, the lens polishing assembly 100 and the polishing end 302 of the lens 300 may swell, and the frictional force is too large, which may cause unstable rotation of the rotating processing wheel 200, and if the rotating processing wheel 200 is unstable, this influence may affect the polishing effect on the polishing end 302 of the lens 300, resulting in a reduction in the processing yield of the lens 300. In contrast, when the distance between the outer sidewall 203 of the rotating processing wheel 200 and the lens polishing assembly 100 is too long, the polishing of the polishing end 302 of the lens 300 cannot be normally completed, and thus, even if the polishing of the curved surface is finally completed, the time required for the curved surface processing is increased.
Next, during the polishing, it is necessary to improve the quality of the curved surface processing of the lens 300 by adjusting an angle between the reference axis 101 of the lens polishing unit 100 (the reference axis 101 of the lens polishing unit 100 is defined as an axis passing through both sides of the lens polishing unit 100) and the rotation axis 202 of the rotating processing wheel 200 to zero (or less than a predetermined threshold value) by the angle adjusting unit of the polishing unit adjusting unit with reference to the rotation axis 202 of the rotating processing wheel 200, that is, by making the reference axis 101 of the lens polishing unit 100 parallel to the rotation axis 202 of the rotating processing wheel 200. This is because, if the rotation axis 202 of the rotating processing wheel 200 is not parallel to the reference axis 101 of the lens polishing assembly 100 and forms an angle, when the lens 300 is polished, the curved surface of the lens 300 cannot be formed symmetrically with the central axis 301 of the lens 300 as a center, and the curved surface formed along the longitudinal direction of the lens 300 may be distorted. Ideally, the reference axis 101 of the lens polishing assembly 100 is aligned parallel to the rotational axis 202 of the rotating process wheel 200 and has a zero included angle.
In the present invention, the linear driving unit (not shown) drives the rotary processing wheel 200 to move in a linear reciprocating motion along a direction parallel to the rotational axis 202 of the rotary processing wheel 200. When the rotary processing wheel 200 is driven by the rotary driving unit 500 to rotate around the rotation axis 202, the rotary processing wheel 200 may reciprocate in a direction parallel to the rotation axis 202 under the driving of the linear driving unit, that is, the lenses 300 in the lens insertion grooves 201 of the rotary processing wheel 200 may be polished by the rotation and axial movement of the rotary processing wheel 200, and the time for processing the curved surfaces of the lenses 300 may be significantly reduced by simultaneously rotating and translating the rotary processing wheel 200. In some embodiments, the rotation and translation operations of the rotating process wheel 200 may not be performed simultaneously, but may be performed sequentially. For example, the linear driving unit may be implemented by a linear driving unit such as a linear motor, a combination of a rotary motor and a ball screw, or a combination of a rotary motor and a cam.
Referring to fig. 1-5, the lens processing apparatus further includes a polishing liquid supply system (not shown), the lens polishing assembly 100 is provided with a drain hole 101 for the polishing liquid to pass through, the polishing liquid supply system is connected to the drain hole 101, and the polishing liquid supply system applies the polishing liquid to the polishing surface 102 of the lens polishing assembly 100 and the surface of the polishing end 302 of the lens 300 through the drain hole 101, so as to improve the polishing efficiency, reduce the wear of the polishing tool, and improve the polishing precision; and the addition of the grinding fluid can also have the properties of protecting, degreasing, rust prevention, cleaning and brightening the optical lens 300. As an example, the drainage hole 101 may be a plurality of circular through holes arranged at intervals, or may be a strip-shaped through hole arranged along the longitudinal direction of the lens polishing assembly 100.
As described above, the lens processing apparatus of the present invention is configured to simultaneously grind the curved surfaces of the plurality of lenticular lenses constituting the lens 300 array, and even if a processing error exceeding a defective standard occurs, the same directivity appears in the processing errors of all the lenticular lenses, so that the lenticular lenses can be re-processed by re-adjusting the rotary lens processing apparatus, so that the generated processing errors are reduced to within an allowable tolerance, that is, the lens processing apparatus of the present invention can control the processing errors of all the lenticular lenses constituting the lens 300 array to a minimum range; when the lens processing device of the invention is used for grinding the lens 300, the position and the angle of the lens grinding assembly 100 can be adjusted by the grinding assembly adjusting part, so that the lens grinding assembly 100 grinds the lens 300 in the optimal grinding posture, and the grinding precision and the grinding efficiency are improved; when the lens processing device of the invention is used for grinding the lens 300, the elastic pressing part is arranged on the inner wall of the lens slot 201, thereby not only preventing the damage of the surface of the lens 300, but also improving the processing precision of the curved surface of the lens 300 (cylindrical lens); by utilizing the invention, the lens grinding assembly 100 is provided with the drain hole 101 for the grinding fluid to pass through, and the grinding fluid is added between the grinding surface 102 of the lens grinding assembly 100 and the grinding surface 102 of the lens 300 through the drain hole 101, so that the grinding efficiency is improved, the abrasion of a grinding tool is reduced, and the addition of the grinding fluid can also have the performances of protecting, degreasing, rust prevention, cleaning and polishing the optical lens 300.
Embodiments of the present invention also provide a lens array, which is formed by arranging a plurality of lenticular lenses in a row (line), and the plurality of lenticular lenses are formed by one-time processing using the lens processing apparatus, so that the processing error of the curved surface of the convex emitting surface of each lenticular lens can be minimized by controlling to maintain the same curvature radius of the curved surfaces of the convex emitting surfaces of the plurality of lenticular lenses forming the lens array as a whole.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Reference throughout this specification to "one embodiment", "an embodiment", or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and not necessarily all embodiments, of the present invention. Thus, respective appearances of the phrases "in one embodiment", "in an embodiment", or "in a specific embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.
It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.
Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.
As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Also, as used in the description herein and throughout the claims that follow, unless otherwise indicated, the meaning of "in …" includes "in …" and "on … (on)".
The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.
The systems and methods have been described herein in general terms as the details aid in understanding the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Thus, although the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Thus, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims (10)

1. A lens processing apparatus, characterized in that the lens processing apparatus comprises:
the rotary processing wheel is provided with a plurality of lens slots which are arranged along the outer side wall of the rotary processing wheel at intervals, the slots extend along the direction parallel to the rotating shaft of the rotary processing wheel, and the depth direction of the lens slots is arranged along the radial direction of the rotary processing wheel;
a rotary drive unit connected with a rotating shaft of the rotary processing wheel;
the lens grinding assembly is far away from the outer side wall of the rotary processing wheel, a drain hole for grinding liquid to pass through is formed in the lens grinding assembly, and the lens grinding assembly is provided with an arc-shaped grinding surface with the same curvature radius as the curved surface required by the lens; and
a slurry supply system connected to the drain hole; and
and the grinding assembly adjusting part is connected with the lens grinding assembly and is used for adjusting the distance between the lens grinding assembly and the outer side wall of the rotary processing wheel and adjusting the angle of the lens grinding assembly.
2. The lens processing apparatus of claim 1, wherein the lens slots are uniformly arranged along an outer sidewall of the rotating processing wheel.
3. The lens processing apparatus according to claim 1, wherein an elastic pressing portion is provided on an inner wall of the lens insertion groove.
4. The lens processing apparatus according to claim 1, wherein a material of the elastic pressing portion includes silicone.
5. The lens processing apparatus of claim 1, wherein the shape of the rotating processing wheel comprises a cylinder or a polygonal column.
6. The lens processing apparatus of claim 1, wherein the lens polishing assembly has a concave polishing surface having the same radius of curvature as the desired curved surface of the lens.
7. The lens processing apparatus according to claim 1, further comprising a linear driving unit for linearly reciprocating the rotary processing wheel in a direction parallel to a rotational axis of the rotary processing wheel.
8. The lens processing apparatus according to any one of claims 1 to 7, wherein the lens is a lenticular lens.
9. The lens processing apparatus according to claim 1, wherein the polishing member adjusting section includes a linear transport member, and an angle adjusting member.
10. A lens array comprising a plurality of lenses arranged in sequence in a same direction, wherein the plurality of lenses are formed by processing the lens processing apparatus of any one of claims 1 to 9 in a single process.
CN202010608298.XA 2020-06-29 2020-06-29 Lens processing device and lens array Pending CN111843713A (en)

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CN202010608298.XA CN111843713A (en) 2020-06-29 2020-06-29 Lens processing device and lens array

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Application Number Priority Date Filing Date Title
CN202010608298.XA CN111843713A (en) 2020-06-29 2020-06-29 Lens processing device and lens array

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CN111843713A true CN111843713A (en) 2020-10-30

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Publication number Priority date Publication date Assignee Title
DE200906C (en) *
US1426146A (en) * 1920-11-12 1922-08-15 Onepiece Bifocal Lens Company Toric-lens series and process of making same
DE808198C (en) * 1950-03-19 1951-07-12 Jansen & Co Machine for grinding spherical and toric surfaces, especially eyeglass glasses
CN1350322A (en) * 1992-06-26 2002-05-22 株式会社半导体能源研究所 Laser machining device irradiating semiconductor layer with laser beam
US20050227592A1 (en) * 2002-01-09 2005-10-13 Hoya Corporation Polishing apparatus
CN101224556A (en) * 2008-02-04 2008-07-23 东华大学 Precise magnetic flowage polishing system for optics parts and method thereof
CN203495716U (en) * 2013-09-11 2014-03-26 南京英星光学仪器有限公司 Eyeglass positioning and polishing structure
CN104589183A (en) * 2015-02-06 2015-05-06 河南理工大学 Processing device for ultrasonic grinding on sapphire lenses
CN105922101A (en) * 2016-06-20 2016-09-07 苏州华徕光电仪器有限公司 Polishing device used for lens
CN207239867U (en) * 2017-08-09 2018-04-17 三明福特科光电有限公司 Grinding and polishing device
CN109571183A (en) * 2018-11-30 2019-04-05 温州市华晖汽摩配件厂(普通合伙) A kind of lens edge grinding machine water outlet multi-radian glass for lenses bevelling bistrique certainly

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200906C (en) *
US1426146A (en) * 1920-11-12 1922-08-15 Onepiece Bifocal Lens Company Toric-lens series and process of making same
DE808198C (en) * 1950-03-19 1951-07-12 Jansen & Co Machine for grinding spherical and toric surfaces, especially eyeglass glasses
CN1350322A (en) * 1992-06-26 2002-05-22 株式会社半导体能源研究所 Laser machining device irradiating semiconductor layer with laser beam
US20050227592A1 (en) * 2002-01-09 2005-10-13 Hoya Corporation Polishing apparatus
CN101224556A (en) * 2008-02-04 2008-07-23 东华大学 Precise magnetic flowage polishing system for optics parts and method thereof
CN203495716U (en) * 2013-09-11 2014-03-26 南京英星光学仪器有限公司 Eyeglass positioning and polishing structure
CN104589183A (en) * 2015-02-06 2015-05-06 河南理工大学 Processing device for ultrasonic grinding on sapphire lenses
CN105922101A (en) * 2016-06-20 2016-09-07 苏州华徕光电仪器有限公司 Polishing device used for lens
CN207239867U (en) * 2017-08-09 2018-04-17 三明福特科光电有限公司 Grinding and polishing device
CN109571183A (en) * 2018-11-30 2019-04-05 温州市华晖汽摩配件厂(普通合伙) A kind of lens edge grinding machine water outlet multi-radian glass for lenses bevelling bistrique certainly

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Application publication date: 20201030