JP2006098526A - Wet scrubber of lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the wet scrubber of a lens for uniformly cleaning the whole optical face even when firm stain exists by bringing a scrubbing member into contact with the optical faces of a variety of lenses different in lens form at substantially uniform contact pressure. <P>SOLUTION: The scrubber of the lens rotates the lens 2 by regarding the geometric center 0 as a center axis, sprays a cleaning agent 70 on the lens 2, and cleans to bring cleaning members 64 and 64 having flexibility attached to two rotating shafts 60 and 60 into contact with the convex face 2a of the lens 2. The cleaning member 64 uses a brush. One brush is brought into contact with a substantially center part of the lens 2, and the other brush is brought into contact with a periphery. The two rotating shafts 60 and 60 are fluctuated in the radial direction of the lens 2 by centering a fluctuating center shaft R<SB>1</SB>. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lens cleaning device for cleaning an optical surface of a lens with a cleaning member such as a brush and a cleaning liquid.

  Various types of cleaning apparatuses of this type for cleaning the convex surface and concave surface (also referred to as the surface to be cleaned), which are optical surfaces of the lens, and removing dirt adhering to the surface to be cleaned have been proposed (for example, Patent Literatures 1 to 3).

  The eyeglass cleaning device described in Patent Document 1 cleans the convex surface and the concave surface simultaneously by pressing and rotating a brush on the convex surface and concave surface of the spectacle lens and spraying a cleaning liquid onto the lens. In addition, this spectacle cleaning device is configured to simultaneously clean a pair of left and right lenses mounted on a spectacle frame.

  In the cleaning device described in Patent Document 2, a contact lens is rotatably accommodated in a retainer, the retainer is disposed in a watertight cleaning chamber, and a pair of cleaning brushes are disposed on both surfaces of the contact lens in the retainer. The both surfaces of the contact lens are simultaneously cleaned by pressing them against each other and rotating these brushes in opposite directions.

  The cleaning apparatus described in Patent Document 3 performs an ultrasonic cleaning process using a non-combustible cleaning agent (N-methyl-2-pyrrolidone), and then performs shower cleaning using the non-combustible cleaning agent in a shower tank. It cleans parts to be cleaned. According to such a cleaning apparatus, an unnecessary protective film layer or resin dirt adhering to a part to be cleaned that could only be cleaned with a chlorinated solvent or a flammable solvent having a low flash point can be removed. It describes that there is little impact and that work safety can be ensured.

Japanese Utility Model Publication No. 5-968322 JP 10-333104 A JP-A-8-103738

  The cleaning devices described in Patent Documents 1 and 2 described above have an advantage that both surfaces can be cleaned at the same time because the brush is pressed against both surfaces of the lens for cleaning. However, each of these cleaning devices is cleaned by bringing one brush into contact with each optical surface of the lens, so that not only a larger brush than the lens is required, but also the shape of the lens varies. Therefore, in order for the cleaning surface (contact surface with the lens) of the brush to uniformly contact the entire surface of the lens to be cleaned, prepare a brush with a shape suitable for each lens shape. There was a problem that it had to be replaced each time. In particular, in the case of a lens having a partially different radius of curvature, such as an aspherical lens or a progressive multifocal lens, it is difficult to press one large brush over the entire surface of the convex surface with substantially uniform pressure, and the entire convex surface There was a problem that it could not be cleaned uniformly.

  The cleaning apparatus described in Patent Document 3 is a cleaning apparatus suitable for removing a protective film (chloroprene rubber-based or vinyl acetate-based resin film) formed on the optical surface of the lens as a pre-process of the lens coating process. It can be said. However, there is a problem that it is not suitable for cleaning after the polishing process of the optical surface. That is, since polishing is performed using an abrasive having a particle diameter of several μm in the polishing process of the optical surface, the abrasive is adhered to the lens surface after polishing, and when it is dried as it is, it is firmly fixed. And this fixed abrasive | polishing agent may perform a function like an adhesive agent, and may adsorb | suck a surrounding foreign material. Such dirt due to the abrasive is difficult to remove because cleaning power is insufficient in ultrasonic cleaning and shower cleaning. It is widely known that abrasives that have adhered to hands during actual work cannot be cleaned only by hand washing with a detergent.

  As another cleaning apparatus, a method of cleaning the entire lens surface by moving the cleaning member along the surface to be cleaned by numerical control is also known. However, when numerical control is used, each lens and its surface shape are managed, and an arithmetic device for numerical control is required.

  The present invention has been made in order to solve the above-described conventional problems. The object of the present invention is to bring the cleaning member into contact with the optical surfaces of various lenses having different lens shapes with a substantially uniform contact pressure. It is an object of the present invention to provide a lens cleaning device that can uniformly clean the entire optical surface even if it is strong dirt.

  According to a first aspect of the present invention, a lens is rotated about its lens geometric center as a central axis, a cleaning agent is sprayed onto the lens, and a flexible cleaning member attached to the rotary shaft is brought into contact with the surface to be cleaned of the lens. In the lens cleaning apparatus for cleaning the surface to be cleaned, a plurality of rotating shafts that can move toward and away from the surface to be cleaned and rotate during cleaning, and a plurality of shafts that are swingably attached to the rotating shafts, respectively. The cleaning members are disposed respectively at the central portion and the peripheral portion of the surface to be cleaned so that the cleaning members do not interfere with each other and the entire surface to be cleaned can be cleaned.

  In a second aspect of the invention, the cleaning member is at least one of a flexible brush and a pad.

  In a third aspect of the invention, the plurality of rotation shafts are swung in the radial direction of the lens during cleaning.

  According to a fourth aspect of the present invention, the cleaning member disposed at the center of the surface to be cleaned of the lens is decentered from the geometric center of the lens among the plurality of cleaning members.

  5th invention comprises the convex surface cleaning mechanism part which wash | cleans the convex surface of a lens with the said cleaning member, and the said convex surface cleaning mechanism part wash | cleans the convex surface of a lens with two brushes, and 2 A second convex cleaning machine that cleans the convex surface of the lens with two hard pads, and a third convex cleaning machine that cleans the convex surface of the lens with two soft pads, and the first, second, and third convex surfaces The cleaning mechanism is arranged so that the central axis of the swing has a different inclination angle with respect to the normal passing through the geometric center of the lens.

  6th invention comprises the concave surface washing | cleaning mechanism part which wash | cleans the concave surface of a lens with the said washing | cleaning member, The said concave surface washing | cleaning mechanism part wash | cleans the concave surface of a lens with a hard pad, and a soft pad And the second concave surface cleaning machine for cleaning the concave surface of the lens, wherein the first and second concave surface cleaning machines have different inclination angles with respect to a perpendicular line through which the central axis of the oscillation passes through the geometric center of the lens. It is arrange | positioned so that it may become.

  In the seventh aspect of the present invention, a set of two lenses is cleaned at the same time.

  In the eighth invention, a neutral surfactant is used as a cleaning agent.

  The ninth invention comprises a lens reversing device for reversing the lens and a cleaning tank section for cleaning with a cleaning liquid.

  In the present invention, since cleaning is performed using a plurality of freely swingable cleaning members, cleaning members smaller than the lens can be used, and each cleaning member can be reliably contacted along the surface to be cleaned, Particularly suitable for convex surface cleaning. In addition, since each rotation shaft is movable in the direction approaching and separating from the lens, each cleaning member contacts the optical surface with an equal contact pressure even if the optical surface of the lens has various surface shapes. Can be made. Therefore, the types of cleaning members can be reduced, which is suitable for cleaning aspherical lenses and progressive multipoint lenses.

  In the present invention, since at least one of a brush and a pad is used as a cleaning member, the cleaning effect is higher than cleaning with only a cleaning liquid, and even a firmly fixed abrasive or the like is reliably removed. can do.

  In the present invention, since the rotating shaft is swung in the radial direction of the lens, the entire surface to be cleaned of the lens can be reliably cleaned with a small cleaning member.

  In the present invention, since the cleaning member disposed on the center side of the lens is intentionally decentered from the geometric center of the lens, the central portion of the lens can be reliably cleaned. That is, if the cleaning member is arranged eccentric to the lens, the relative speed between the rotation center of the lens and the rotation center of the cleaning member does not become zero, so that the center portion of the lens can be cleaned.

  Further, in the present invention, the convex surface and concave surface of the lens can be cleaned because the convex surface cleaning mechanism portion by the cleaning member and the concave surface cleaning mechanism portion are provided.

  In the present invention, since a set of two lenses is cleaned at the same time, it can be cleaned in units of orders, and it is easier to determine from where to where is the unit of orders compared to cleaning one by one. As a result, it is possible to prevent the occurrence of problems such as the mixing of lenses of other orders or the difference between the display and the lens.

  In the present invention, since a neutral surfactant is used as the cleaning agent, there is little influence on the environment.

  In the present invention, since the lens reversing device for reversing the lens is provided, the lens can be automatically reversed, and the convex surface and the concave surface can be washed continuously. In addition, since the cleaning tank portion is provided, dirt attached to the lens can be more reliably removed.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
First, an overall configuration of a lens cleaning apparatus according to the present invention will be described with reference to FIG.
FIG. 1 is a schematic plan view showing an embodiment of a lens cleaning apparatus according to the present invention. In the figure, a cleaning apparatus denoted as a whole by reference numeral 1 automatically performs a series of steps from the supply of eyeglass lenses (hereinafter referred to as lenses) 2 and 2 that are objects to be cleaned, cleaning, and carrying out to the next process. The apparatus includes a box-shaped housing 3 installed on the floor.

  The lens 2 is a progressive-power spectacle lens made of plastic typified by an allyl-based, polyurethane-based, or polycarbonate-based resin such as diethylene glycol bisallyl carbonate. The convex surface 2a and the concave surface 2b (FIG. 7) are desired optical surfaces. Polished finish. The lens 2 has an outer diameter of, for example, 65 mm, 70 mm, 75 mm, 80 mm, a refractive index of 1.50, 1.60, 1.70, etc., and an optical surface base curve of 0.1 to 10 diopters. Is not coated. Since such lenses 2 are cleaned in units of orders, they are housed in a lens tray 5 in pairs.

  The housing 3 is provided with a first tray transport mechanism 6 for carrying a lens tray 5 housing a pair of lenses 2 from the outside of the housing 3 into a lens tray carrying-in portion A inside the housing. ing. Further, inside the housing 3, a second tray transport mechanism 7 that transports the lens tray 5 carried into the lens tray carry-in section A to the lens take-out position B, and the lens tray 5 carried to the lens take-out position B. A first lens transport mechanism 8 that takes out the lens 2 and transports it to the lens centering section C, a lens centering device 10 that centers the lens 2 and stores it in the centering case 9, and the lens 2 stored in the centering case 9 The second lens transport mechanism 12 is transported to the cleaning mechanism section 11. The cleaning mechanism unit 11 includes a convex surface cleaning mechanism unit 13 and a concave surface cleaning mechanism unit 14, and a lens reversing device 15 is provided between the two mechanism units.

  Further, in the housing 3, a first lens storage mechanism 17 that stores the lens 2 that has been cleaned by the cleaning mechanism section 11 in an empty cleaning rack 16, and a cleaning tank section 18 that cleans the lens 2 with a cleaning liquid. A second lens storage mechanism 19 that takes out the lens 2 that has been cleaned by the cleaning tank 18 from the cleaning rack 16 and stores it in the empty lens tray 5, and a third tray transport that transports the empty lens tray 5. A mechanism 20, a rack transport mechanism 21 that transports the empty cleaning rack 16 to the original position, a fourth tray transport mechanism 22 that transports the lens 2 that has been cleaned to the next process transport standby position J together with the lens tray 5. A control unit 23 and the like for controlling the entire apparatus in sequence are provided. In FIG. 1, D, E, and F are lens standby positions, G is a lens storage position, and H is a lens tray standby position.

Next, the above-described mechanism part of the cleaning apparatus 1, the configuration of the apparatus, and the like will be described in more detail with reference to FIGS.
FIG. 2 is an external perspective view of the lens tray carry-in portion. The first tray transport mechanism 6 that transports the lens tray 5 containing the lens 2 to the lens tray carry-in part A is shown in the figure in which the rail 25 for guiding the lens tray 5 and the lens tray 5 are moved along the rail 25. The driving device is omitted. The pair of lenses 2 is housed in the lens tray 5 with the convex surface 2a facing up.

  Above the lens tray carry-in part A, the second tray transport mechanism 7 is provided. The second tray transport mechanism 7 includes a slider 27 having a pair of hands 26A and 26B that sandwich the lens 2, and a reciprocating mechanism 28 that reciprocally moves the slurder 27 between the lens tray carry-in portion A and the lens take-out position B. Etc.

  FIG. 3 is an external perspective view showing the first lens transport mechanism. In the figure, the first lens transport mechanism 8 is disposed above the lens extraction position B. When the lens tray 5 is transported to the lens extraction position B and stopped when the first lens transport mechanism 8 is stopped, each lens 2 in the lens tray 5 is attracted and removed from the lens tray 5 by the pair of vacuum pads 30A and 30B. It is configured to be conveyed to the lens centering unit C. After the lens 2 is taken out by the pair of vacuum pads 30A and 30B, the emptied lens tray 5 is transported to the lens tray standby position H by the third tray transport mechanism 20 and temporarily stands by, and then the lens storage position. It is conveyed to G.

  FIG. 4 is a perspective view showing the lens centering portion. In the figure, the lens centering section C includes a lens storage case 34 for receiving the lens 2 conveyed by the second lens conveyance mechanism 8, the lens centering device 10 for centering the lens 2, and a centered lens. The second lens transport mechanism 12 for transporting 2 to the cleaning mechanism section 11 is provided. The lens centering device 10 normally includes a pair of clamping means 35A and 35B that are on standby above the lens centering portion C and are raised and lowered by a driving device. Further, these clamping means 35A, 35B have four clamping pins 36 that can be opened and closed to clamp the edge surface (outer circumferential surface) of each lens 2. The pair of clamping means 35A, 35B descends during centering and rises when the edge surfaces of the lenses 2, 2 in the lens storage case 34 are clamped by the clamping pins 47, and are taken out from the lens storage case 34, and the second lens. When transported above the starting end of the transport mechanism 12, the lens 2 is lowered again and each lens 2 is stored in the centering case 9. The centering case 9 is formed in a cylindrical shape that opens upward, and has a base 42 that automatically centers the lens 2 therein. Two centering cases 9 are installed on a mounting table 43 provided on the second lens transport mechanism 12.

  The second lens transport mechanism 12 is formed of a chain conveyor, and a plurality of mounting tables 43 are installed in the transport direction of the lens 2 at a predetermined interval. Further, the second lens transport mechanism 12 is configured to transport the lens 2 to the cleaning mechanism unit 11 by being driven intermittently.

  FIG. 5 is an external perspective view of the cleaning mechanism section, FIG. 6 is a cross-sectional view of the main part of the convex surface cleaning means, FIG. 7 is a diagram illustrating the state of convex surface cleaning by the convex surface cleaning machine, and FIG. FIGS. 9A, 9B, and 9C are views showing the inclination angle of the oscillation center of the first, second, and third convex cleaning machines, and FIG. 10 is a cross-sectional view showing the lens adsorption rotation mechanism. is there. In these drawings, the cleaning mechanism unit 11 includes the convex surface cleaning mechanism unit 13 that cleans the convex surface 2 a of the lens 2. The convex surface cleaning mechanism unit 13 includes first, second, and third convex surface cleaners 50, 51, and 52.

  In FIG. 5, the first, second, and third convex cleaning machines 50, 51, and 52 are provided at a predetermined interval in the conveyance direction of the lens 2. Further, below each of the first, second, and third convex surface cleaners 50, 51, and 52, a lens suction rotation mechanism 55 (FIG. 10) that sucks and rotates the lens 2 at the time of cleaning is provided in each centering case 9. The lens 2 is disposed so as to correspond to each.

  The first convex surface cleaning machine 50 includes a pair of convex surface cleaning means 56A and 56B for each lens 2 to simultaneously clean a pair of two lenses 2. 6-8, the convex surface cleaning means 56A includes an outer cylinder 59 that is rotatably supported by a cylindrical holder 57 via a bearing 58, and a rotary shaft that passes through the outer cylinder 59 so as to be movable up and down. 60, a driven gear 61 fixed to the upper end of the outer cylinder 59, a cleaning member 64 attached to the lower end of the rotating shaft 60 via a rubber socket 62 and a buffer member 63, and an illustration for rotating the driven gear 61. It is comprised with the drive motor etc. which do not.

  The outer cylinder 59 and the rotary shaft 60 are connected by a key 65 and a key groove 65A. The key 65 is slidably fitted in the key groove 65A, thereby enabling the rotary shaft 60 to move up and down. The rotation from the motor is transmitted to the rotary shaft 60 via the driven gear 61, the outer cylinder 59 and the key 65. The rotation speed of the rotating shaft 60 is 200 to 500 rpm, preferably about 420 rpm.

  The rubber socket 62 is swingably attached to the rotary shaft 60 by a swing mechanism 66 to constitute a swing mechanism for the cleaning member 64. The buffer member 63 is formed of a soft member such as a sponge mainly composed of polyurethane. As the cleaning member 64, a flexible brush formed in a disk shape having an outer diameter of 2.6 cm is used. As a material of the brush 64, a thin wire material such as nylon (trade name) having a thickness of 0.15 mm, polyester, or polypropylene is used. The convex surface cleaning unit 56B has the same structure as that of the convex surface cleaning unit 56A, and a description thereof will be omitted.

  Of the pair of convex surface cleaning means 56A, 56B, one convex surface cleaning means 56A is disposed at a substantially center of the lens 2 so as to be substantially perpendicular to the convex surface 2a. On the other hand, the other convex surface cleaning means 56B is disposed near the periphery of the convex surface 2a so as to be substantially perpendicular to the convex surface 2a. For this reason, the axes of the pair of convex surface cleaning means 56A and 56B intersect at an angle 2β as shown in FIG. The inclination angle 2β of the convex surface cleaning unit 56B with respect to the convex surface cleaning unit 56A is calculated by an average inclination of the convex surface 2a of the lens 2 to be cleaned (for example, about 10 °). Further, the brushes 64, 64 of the pair of convex surface cleaning means 56A, 56B are separated by, for example, about 2 to 3 cm so as not to interfere with each other.

Such a pair of convex surface cleaning means 56A, 56B is arranged in the radial direction of the lens 2 as indicated by an arrow 67 with the brush 64 in contact with the convex surface 2a of the lens 2 at the time of cleaning, with an oscillation center axis R ₁ as the center. Swing. The swing central axis R ₁ of the pair of convex surface cleaning means 56 A and 56 B is inclined by an angle α _{1 with} respect to a perpendicular L passing through the geometric center 0 of the lens 2. This angle α ₁ is about 10 °. The swing angle of the swing center axis R ₁ is an angle β on the left and right, respectively, and 2β as a whole. The amplitude of the swing of the convex surface cleaning means 56A and 56B is about 1 to 2 cm, and the period is 1 to 5 seconds.

  As the cleaning liquid 70 used when cleaning the lens 2, a neutral surfactant is used. For example, a cleaning liquid containing 9% polyoxyethylene alkyl ether, 7% fatty acid alkanolamide, 83% water, and other additives such as phosphorus, bleach, and fluorescent fiber anti-resisting prevention agent as detergent components is used. It is done. In addition, although it is also possible to use the washing | cleaning liquid containing another surfactant, neutrality is suitable for liquid property.

  In FIG. 10, the lens adsorption rotation mechanism 55 that adsorbs and rotates the lens 2 includes an outer cylinder 76 that is rotatably disposed in a cylindrical holder 74 via a bearing 75, and the outer cylinder 76. A rotary shaft 77 that penetrates in a vertically movable manner and transmits the rotation of the outer cylinder 76 via a key 78, a rubber suction disk 79 attached to the upper end of the rotary shaft 77, and the rotary shaft 77 are driven. A drive motor (not shown), driven gears 80a and 80b that transmit the rotation of the drive motor to the rotation shaft 77, a bellows 81, and the like are configured. The rotary shaft 77 is formed in a cylindrical body whose upper and lower ends are open, and the center hole 77a is connected to a vacuum pump (not shown).

  The suction plate 79 has a hole 81 communicating with the central hole 77a of the rotation shaft 77 at the center. When the lens 2 is attracted, the suction plate 79 rises together with the rotation shaft 77 and comes into contact with the concave surface 2b of the lens 2 so that the central hole 77a is vacuumed. By being evacuated by a pump, the lens 2 is sucked and held. Since the lens 2 is centered in advance by the lens centering device 10 described above, the geometric center 0 of the lens 2 substantially coincides with the axis of the rotation shaft 77 when sucked and held by the suction disk 79. The rotational speed of the rotating shaft 77 is 10 to 15 rpm, but 13 rpm is preferable. In addition, since it is necessary to adsorb and hold the two lenses 2 and 2 independently, such a lens adsorption rotation mechanism 55 is provided as a pair corresponding to each of the convex surface cleaning means 56A and 56B. .

When the convex surface of the lens 2 is cleaned by the convex surface cleaning means 56A, 56B, the rotary shaft 77 of the lens suction rotation mechanism 55 is raised and the suction surface 79 holds the concave surface 2b of the lens 2 by suction. Moreover, the rotating shaft 60 of each convex surface washing | cleaning means 56A, 56B is dropped, and each brush 64 is made to contact the approximate center part and peripheral part of the convex surface 2a of the lens 2, respectively. This contact is due to the weight of the rotating shaft 60, the rubber socket 62, the buffer member 63, and the brush 64. When the brush 64 is brought into contact with the lens 2 by the weight of the rotary shaft 60 and its accessories, the brush 64 tilts following the convex shape of the lens 2 due to the tilting of the rubber socket 62 and the compression deformation of the buffer member 63. The front end surface can be brought into contact with the convex surface 2a of the lens 2 over the entire surface with a substantially uniform contact pressure. The contact pressure of the brush 64 with respect to the lens 2 is about 1.5 to 3 kPa. When the brush 64 is brought into contact with the lens 2, the rotation shafts 60 and 77 are rotated in opposite directions at a predetermined rotational speed, respectively, and the cleaning liquid 70 is ejected from the nozzle 71 toward the lens 2 and the brush 64. Furthermore convex cleaning device 56A, by swinging the swing center axis R ₁ in the radial direction of the lens 2 as a swing center of 56B, washing convex 2a by the brush 64 and the cleaning solution 70 is performed.

Here, the reason why the pair of convex surface cleaning means 56A and 56B is used as the first convex surface cleaning machine 50 will be described.
The lens 2 has various shapes, for example, a lens having a large curvature radius and a small lens. As shown in FIG. 7, in the lens 2 having a large curvature radius, the height H _{1 of the} convex surface 2a is 24.5 mm, and in the lens having a small curvature radius, it is 3.8 mm, and the difference is 20.7 mm. For this reason, in a conventional cleaning device that cleans a large brush in contact with the entire convex surface 2a, the brush cannot be brought into contact with the entire convex surface 2a with a uniform contact pressure.

In order to follow the difference in the convex surface height H ₁ due to the difference in the lens shape, when the pressure on the convex surface 2a is secured with a single brush and the followability to the convex surface 2a is to be ensured, each curved surface shape of the convex surface 2a It is necessary to prepare a plurality of types of brushes that coincide with each other and replace them according to the curved surface shape. In order to replace the lens, it is necessary to check in advance what kind of curved surface the lens 2 to be cleaned has, and to select a brush that matches the curved shape, which complicates the work. Further, in order to replace the brush, the apparatus itself must be temporarily stopped, which reduces the operating rate of the apparatus. If the lens is washed with a brush that does not match the lens shape, the washing will be insufficient, and if it is transferred to the next dyeing process as it is and dyed, the coating solution or the staining solution may be contaminated. Increases nature.

  On the other hand, the present invention uses a pair of convex surface cleaning means 56A and 56B, and the two brushes 64 are brought into contact with the central part and the outer peripheral part of the lens 2, so that the brushes 64 are made sufficiently smaller than the lens 2. Even if the curved surface shape of the lens 2 is different, the cleaning surface of the brush 64 can be substantially uniformly contacted with the convex surface 2a of the lens 2 over the entire surface with a relatively small contact pressure. Thereby, the kind of brush 64 can be reduced, the replacement frequency of the brush 64 and the burden on the operator can be reduced, and the cleaning time can be shortened.

When the brush cleaning by the first convex surface cleaning mechanism 50 is finished, the second lens transport mechanism 12 (FIG. 4) transports the cleaned lens 2 that has traveled again and directly below the second convex surface cleaning machine 51. Stop. In FIG. 5 and FIG. 9B, the second convex surface cleaning machine 51, like the first convex surface cleaning unit 50, cleans each pair of lenses 2 at the same time for each lens 2. Convex surface cleaning means 85A and 85B comprising a one-on-one set are provided. Each of the convex surface cleaning means 85A and 85B has substantially the same structure as the convex surface cleaning means 56A and 56B, but uses a relatively hard pad 86 instead of a brush as a cleaning member, and the geometric center 0 of the lens 2. The point at which the swing angle α ₂ of the swing central axis R ₂ of the second convex surface cleaning machine 51 with respect to the passing normal L is smaller than the swing angle α _{1 of} the first convex surface cleaning hand machine 50 (α ₁ > α ₂ ). Is different from the first convex cleaning machine 50. The swing angle α ₂ is about 5 °, for example. The reason why the swing angle α ₂ is smaller than α ₁ is to focus on the central portion of the convex surface 2a. The reason for using the pair of convex surface cleaning means 85A and 85B is the same as that of the convex surface cleaning means 56A and 56B. The pair of convex cleaning device 85A, the swing angle of the swing center axis R ₂ of 85B across a respective angle β to the right and left is 2.beta.

  As the pad 86, for example, a pad formed of a sheet material having a thickness of about 1 mm made of a foamed cloth such as foamed polyurethane, felt, or a nonwoven fabric or a synthetic resin is used. The hardness (JIS-A) of the pad 86 is 80-90. By using such a pad 86, dirt released by the cleaning by the first convex surface cleaning machine 50 can be removed from the convex surface 2a and dissolved with a cleaning agent.

When the pad cleaning by the second convex surface cleaning machine 51 is completed, the second lens transport mechanism 12 travels again and transports the cleaned lens 2 directly below the third convex surface cleaning machine 52 and stops. In FIG. 5 and FIG. 9C, the third convex cleaning machine 52, like the first and second convex cleaning machines 50 and 51, is configured to wash each pair of lenses 2 at the same time. Convex surface cleaning means 90 </ b> A and 90 </ b> B are provided in a one-to-one set with respect to the lens 2. Each of the convex surface cleaning means 90A and 90B has substantially the same structure as the convex surface cleaning means 56A, 56B, 85A and 85B, but uses a soft pad 91 as a cleaning member compared to the pad 86, and the geometry of the lens 2 The swing angle α ₃ of the swing central axis R ₃ of the third convex cleaning machine 52 with respect to the perpendicular L passing through the academic center 0 is larger than the swing angle α _{1 of} the first convex cleaning hand machine 50 (α ₃ > Α ₁ > α ₂ ) is different from the first and second convex cleaning machines 50 and 51. This swing angle α ₃ is, for example, about 15 °. The reason why the swing angle α ₃ is increased is that the peripheral portion of the convex surface 2a is washed preferentially. The swing angle of the swing center axis R ₃ of the pair of convex surface cleaning means 90A and 90B is an angle β on the left and right, respectively, and 2β as a whole.

  11 is an external perspective view showing the lens reversing device, FIG. 12 is a sectional view of the lens reversing device, and FIGS. 13A and 13B are schematic plan views showing a state before the lens of the lens reversing device is sandwiched. It is a schematic plan view which shows the figure and the state clamped. In these drawings, the lens reversing device 15 is provided at the lens standby position D (FIG. 1). The lens reversing device 15 is a mechanism for turning the lens 2 upside down so that the concave surface 2b faces upward so that the concave surface cleaning of the lens can be performed by a concave surface cleaning mechanism unit 14 to be described later. A lens clamping motor 96 attached downward to the lower end of 95 is provided. The lifting arm 95 is configured to be lifted and lowered by a drive motor (not shown) when the lens reversing device 15 holds the lens 2. A pair of rotating arms 98A and 98B are attached to an output shaft 97 of the lens clamping motor 96 via an arm support member 99. The arm support member 99 is formed in a cylindrical body and is attached to the rotary shaft 97, and a pair of connecting arms 99A and 99B are integrally projected at the lower part of the outer peripheral surface. These connecting arms 99A, 99B are provided on the outer peripheral surface of the arm support member 99 so as to be in a straight line horizontally and 180 ° apart from each other in the circumferential direction. Support shafts 100A and 100B are suspended from the ends of the connection arms 99A and 99B, respectively, and one end of each of the rotation arms 98A and 98B is rotatably supported by the support shafts 100A and 100B. Yes. The upper ends of the support plates 101A and 101B facing each other are rotatably connected to the other ends of the rotary arms 98A and 98B, respectively. Support plates 101A and 101B are held by two guides 102 so as to approach and separate from each other in parallel.

  A lens reversing motor 104 is further disposed below the lens clamping motor 96. The lens reversing motor 104 is a motor for reversing the lens 2 up and down, and is fixed to the center of the horizontal support bar 106. A drive gear 108 is attached to the output shaft 107 of the motor 104. The support bar 106 is slidably held by sleeves 109A and 109B provided on top of the pair of support plates 101A and 101B.

  A pair of lens holding members 105A and 105B that sandwich the lens 2 are rotatably attached to the lower ends of the support plates 101A and 101B via rotation shafts 110A and 110B. These lens holding members 105A and 105B are formed in a cup shape and face each other.

  A rotating shaft 115 is provided on the lower surface side of the lens reversing motor 104. The rotating shaft 115 is rotatably supported at the center by a bearing member 116, and gears 122A and 123A are attached to both ends. These gears 122A and 123A are rotatably supported by bearing holes 117A and 117B provided in the support plates 101A and 101B, respectively. A gear 118 that meshes with the drive gear 108 is fixed to an intermediate portion of the rotating shaft 115. Therefore, when the lens reversing motor 104 is driven, the rotation is transmitted to the gears 122A and 123A via the driving gear 108, the gear 118, and the rotating shaft 115.

  Further, gears 122B, 122C and 123B, 123C for transmitting the rotation of the gears 122A, 123A to the lens holding members 105A, 105B are attached to the outer surfaces of the support plates 101A, 101B, respectively. The gears 122B and 123B are rotatably attached to fixed shafts 124A and 124B protruding from the support plates 101A and 101B, respectively. The gears 122C and 123C are fixed to the rotary shafts 110A and 110B. The gear 122B meshes with the gear 122A and the gear 122C, and the gear 123B meshes with the gear 123A and the gear 123C.

  The lens reversing device 15 having such a structure normally stands by above the lens standby position D with the pair of lens holding members 105A and 105B being opened to the maximum, as shown in FIGS. 12 and 13A. Yes. At this time, the pair of lens holding members 105 </ b> A and 105 </ b> B are separated by a distance sufficiently larger than the outer diameter of the lens 2. The pair of rotating arms 98A and 98B and the connecting arms 99A and 99B of the arm support member 99 are aligned with each other.

  When the lens 2 is inverted so that the convex surface 2a faces downward and the concave surface 2b faces upward, the lifting arm 95 is lowered so that the pair of lens holding members 105A and 105B coincide with the height of the lens 2. Then, the lens clamping motor 96 is driven to rotate the output shaft 97 half counterclockwise in FIG. When the output shaft 97 is rotated halfway, the turning arms 98A and 98B and the connecting arms 99A and 99B are bent in a Z shape as shown in FIG. 13B, and the pair of lens holding members 105A and 105B are pulled to the lens 2. Press. Accordingly, the lens holding members 105A and 5B sandwich the lens 2. When the pair of lens holding members 105 </ b> A and 105 </ b> B sandwich the lens 2, the lifting arm 95 is raised to a certain height in this state, and the lens 2 is extracted from the centering case 9. Next, in this state, the lens reversing motor 104 is driven to transmit the rotation of the output shaft 107 to the gears 108 and 118, and further the rotation of the gear 118 is transmitted to the gear trains 122A, 122B and 122C, and 123A, 123B and 123C. To the lens holding members 105A and 105B. Therefore, the pair of lens holding members 105 </ b> A and 105 </ b> B rotate 180 ° while holding the lens 2 to reverse the lens 2. Thereby, the concave surface 2b of the lens 2 is on the upper side, and the convex surface 2a is on the lower side. After the lens 2 is inverted, the lifting arm 95 is lowered again to store the inverted lens 2 in the centering case 9 to release the holding state of the lens 2 by the lens holding members 105A and 105B. Is returned to the original height position, the reversing operation of the lens 2 is finished.

  14 is an external perspective view of the concave surface cleaning mechanism, FIG. 15 is a cross-sectional view of the main part of the concave surface cleaning machine, and FIG. 16 is a view showing the swing angle of the concave surface cleaning machine. In these drawings, the concave surface cleaning mechanism portion 14 for cleaning the concave surface 2b of the lens 2 is disposed behind the lens reversing device 15 and above the second lens transport mechanism 12. The concave surface cleaning mechanism unit 14 includes first and second concave surface cleaning machines 130 and 131 provided at a predetermined interval in the conveyance direction of the lens 2.

  The first concave surface cleaning machine 130 includes two concave surface cleaning means 132A and 132B for cleaning a pair of two lenses 2 at the same time. The concave surface cleaning means 132A (the same applies to 132B) includes an outer cylinder 136 that is rotatably disposed in a cylindrical holder 134 via a bearing 135, and is fitted into the outer cylinder 136 so as to be movable up and down. As a cleaning member attached to the lower end of the rotating shaft 137 via a rubber socket 139 and a buffer member 140, a rotating shaft 137 that rotates integrally with the outer shaft 136, a driven gear 138 fixed to the upper end portion of the outer cylinder 136, The pad 141 and a drive motor (not shown) that rotates the rotating shaft 137 via the driven gear 138 are configured. The rotational speed of the rotating shaft 137 during cleaning is 200 to 500 rpm, preferably about 420 rpm.

  The rubber socket 139 has a neck portion 139A provided at an intermediate portion in the height direction, thereby constituting a swing mechanism of the cleaning member 141. The buffer member 140 is formed of a soft member such as a sponge mainly composed of polyurethane. The pad 141 is formed of a sheet material having a thickness of about 1 mm made of, for example, a fibrous cloth such as foamed polyurethane, felt, or nonwoven fabric, or a synthetic resin. The hardness (JIS-A) of the pad 141 is 90-97. As the pad 141, a pad larger than the radius of the lens 2 is used. In this embodiment, a pad 141 having a diameter of 40 to 60φ is used for cleaning the lens 2 having a maximum outer diameter of 80φ, but about 52φ is preferable.

Such concave cleaning means 132A is indicated by an arrow 140 around the swing center axis R ₄ pads 141 own weight and the rotary shaft 137 on the concave surface 2b of the lens 2 and in a state of being contacted by weight of the accessories during cleaning Thus, the concave surface 2b is cleaned with the pad 141 and the cleaning liquid by swinging in the radial direction of the lens 2 as described above. The swing center axis R ₄ of the concave surface cleaning means 132 A is inclined by an angle γ _{1 with} respect to a normal L passing through the geometric center 0 of the lens 2. The inclination angle γ ₁ of the oscillation center axis R ₄ is about 5 °. The swing angle of the swing center axis R ₄ is an angle β on the left and right sides, and 2β as a whole. The reason why the swing angle γ ₁ is made small is that the central portion of the concave surface 2b is washed preferentially. As the cleaning liquid, the same cleaning liquid as that used in the above-described convex surface cleaning is used.

14 and 17, the second concave surface cleaning mechanism 131 includes two concave surface cleaning means 145A and 145B for simultaneously cleaning the concave surface 2b of a set of two lenses 2 at the same time. Each concave surface cleaning means 145A, 145B has substantially the same structure as the concave surface cleaning means 132A, 132B, but uses a pad 146 that is softer than the pad 141 as a cleaning member, and the swing of the concave surface cleaning means 145A, 145B. The difference is that the inclination angle γ ₂ of the central axis R ₅ is set to 15 ° from the vertical direction. Inclination angle gamma ₂ a concave surface cleaning means 132A, reason for greater than the inclination angle gamma ₁ of 132B is for intensively cleaning the peripheral portion of the concave surface 2b.

  FIG. 18 is an external perspective view showing a state in which the lens is stored in the cleaning rack. In the figure, the lens 2 that has finished cleaning the concave surface 2b is stored in the cleaning rack 16 when taken out from the centering case 9 by the first lens storage mechanism 17 at the lens standby position F shown in FIG. The first lens storage mechanism 17 includes four clamp pins 151 that can be freely opened and closed to sandwich the outer periphery of the lens 2. When the clamp pin 151 is lowered and pinches the outer peripheral surface of the lens 2 in the centering case 9, the clamp pin 151 rises again and pulls the lens 2 out of the centering case 9, and then rotates 90 ° upward to make the lens 2 substantially vertical. To make sure When the lens 2 is conveyed above the cleaning rack 16 and lowered, the lens 2 is stored in the cleaning rack 16.

  The cleaning rack 16 is sized so that the four lenses 2 can be stowed vertically, and includes a total of eight sandwiching arms 155 disposed two by two facing each other. Yes. The support arm 155 sandwiches the outer periphery of the lens 2 as a set of two, the lower end of the support arm 155 is pivotally supported by the shaft 156, and a turning behavior in the closing direction is given by a spring. The cleaning rack 16 is transported to the cleaning tank 18 when the lens 2 is stored.

FIG. 19 is an external perspective view showing the shower cleaning section of the cleaning tank section.
Since the cleaning by the cleaning mechanism 11 is cleaning with a brush and a pad, most of the dirt that is firmly fixed to the lens 2 can be removed. Remains weak and easily removed. Such stains can be sufficiently removed simply by immersing the lens 2 in a cleaning liquid made of water or a surfactant and cleaning it. Therefore, the cleaning tank unit 18 includes a shower cleaning tank 160, an ultrasonic cleaning tank 161, a pure water cleaning tank 162, a pulling tank 163, and a drying tank 164 (FIG. 1).

  In the shower cleaning tank 160, the cleaning rack 16 is put into the shower cleaning tank 160 by the lifting platform 166, and cleaning is performed by spraying the shower 167 toward the lens 2. The ultrasonic cleaning tank 161 includes an ultrasonic oscillation device, and removes dirt and cleaning agent adhering to the surface of the lens 2 by high-frequency vibration. The pure water cleaning tank 162 is cleaned by immersing the lens 2 in pure water.

  When the cleaning of the lens 2 with pure water is completed, the lens 2 is pulled out of the pure water cleaning tank 162 and immersed in pure water in the pulling tank 163. Normally, water droplets adhere to the surface of the lens 2 when pulled out from the cleaning liquid. If drying is performed with water droplets attached, impurities contained in moisture adhere firmly to the surface of the lens 2. Therefore, in the present invention, a pulling tank 163 is provided to slowly lift the lens 2, and water droplets adhering to the lens surface are removed by utilizing hydrogen bonds and van der Waals forces that attract water molecules. Yes. The pulling speed of the lens 2 from the pulling tank 163 is about 350 mm / min.

  The drying tank 164 dries the lens 2 pulled up from the pulling tank 163 by a flow of warm air or dry air.

  At the lens standby position G in FIG. 1, the second lens storage mechanism 19 stores the lens 2 that has been dried by the drying tank 164 from the cleaning rack 16 and stores it in the empty lens tray 5. The lens tray 5 storing the lens 2 is transferred to the next process transfer standby position J by the fourth tray transfer mechanism 22 and then transferred to the dyeing process or the coating process. The empty cleaning rack 16 is transported to the original position by the rack transport mechanism 21.

  Next, the lens cleaning process by the cleaning apparatus 1 will be described with reference to the flowcharts shown in FIGS.

A. Step of carrying lens into cleaning device The lens tray 5 containing a set of two lenses 2 is conveyed to the lens tray carrying portion A by the first tray conveyance mechanism 6 (step 200). When the lens tray 5 is conveyed to the lens tray carrying-in part A, it is detected by a sensor. When the sensor detects the lens tray 5, the first tray transport mechanism 7 holds the lens tray 5 and transports it to the lens extraction position B in the cleaning device 1 (step 201).

B. Lens Centering Next, the first lens transport mechanism 8 sucks and takes out the lens 2 in the lens tray 5 and transports it to the lens centering section C (step 202). The lens tray 5 emptied by taking out the lens 2 is transported to the lens standby position G by the third tray transport mechanism 20 and waits until the cleaning of the lens 2 is completed.

  In the lens centering section C, when the lens 2 is stored in the lens storage case 34 (FIG. 4), the lens centering device 10 holds the lens 2 in the case 34 and removes it from the case 34 and stores it in the centering case 9. . Thereby, the centering case 9 centers the lens 2 (step 203).

C. Next, the convex surface 2a of the lens 2 housed in the centering case 9 is cleaned by the convex surface cleaning mechanism unit 13 of the cleaning mechanism unit 11. This convex surface cleaning is brush cleaning by the first convex surface cleaning machine 50 in step 204, pad cleaning by the second convex surface cleaning machine 51 in step 205, and pad cleaning by the third convex surface cleaning machine 52 in step 206. .

D. Lens Reversal When the brush and pad cleaning by the convex surface cleaning mechanism unit 13 is completed, the lens 2 is reversed by the lens reversing device 15 so that the convex surface 2a faces downward and the concave surface 2b faces upward (step 207).

E. Next, the concave surface 2b of the lens 2 is cleaned by the concave surface cleaning mechanism unit 14. This concave surface cleaning is pad cleaning by the first concave surface cleaning machine 130 in step 208 and pad cleaning by the second convex surface cleaning machine 131 in step 209.

F. When the concave surface cleaning of the lens 2 by the concave surface cleaning mechanism unit 14 is completed, the lens 2 is stored in the cleaning rack 16 and transferred to the cleaning tank unit 18 (step 210).

G. Cleaning by lens cleaning tank section Cleaning by the cleaning tank section 18 includes shower cleaning (step 211), ultrasonic cleaning (step 212), and pure water cleaning (step 213). The shower cleaning is performed by spraying the shower onto the lens 2 to remove dirt and cleaning agent. The ultrasonic cleaning removes dirt and cleaning agent adhering to the lens surface by high-frequency vibrations generated by the ultrasonic oscillator. The pure water cleaning is performed by immersing the lens 2 in pure water to remove the cleaning agent containing dirt.

H. Moisture removal When pure water cleaning is completed, the lens 2 is immersed in pure water in the drawer tank 164, and the lens 2 is slowly pulled out to remove adhering water droplets (step 214).

I. Drying After removing moisture, the lens 2 is placed in the drying tank 164 and dried by the flow of warm air or dry air (step 215).

J. et al. Storage and Transport in Lens Tray The lens 2 taken out from the drying tank 164 is stored in the lens tray 5 and transported to the next process transport standby position J (steps 216 to 218). And the cleaning process of the lens 2 is complete | finished by conveying to the following process.

  Thus, since the cleaning apparatus 1 according to the present invention uses both brush cleaning and pad cleaning, it is possible to reliably remove dirt such as an abrasive that is firmly fixed to the surface to be cleaned of the lens 2. .

Further, since the cleaning is automatically performed without the operator touching the lens 2 until the cleaning is completed, the lens 2 after cleaning is not contaminated. Furthermore, the cleaning device 1 according to the present invention has the cleaning mechanism unit 11 configured to simultaneously clean a pair of lenses 2 as a unit of order, thereby preventing the occurrence of mixing of different lenses, content differences, and the like. be able to.
Furthermore, since a surfactant having a neutral liquid property that is used in general households is used as a cleaning agent, the influence on the environment can be reduced.

FIG. 21 and FIG. 22 are diagrams showing examples of the arrangement of the cleaning members when cleaning without swinging the convex cleaning machine.
In the above-described embodiment, the first, second, and third convex surface cleaning machines 50, 51, and 52 (FIG. 5) are swung in the radial direction of the lens 2 to perform cleaning. In the embodiment, the first, second, and third convex cleaning machines 50, 51, and 52 are fixed in place and cleaned. For this reason, the two brushes 180A and 180B are arranged so as not to interfere with each other at the central portion and the peripheral portion of the lens 2 and so that the entire convex surface of the lens 2 can be cleaned.

  The sizes of the brushes 180A and 180B depend on the outer diameter of the lens 2 to be cleaned. In this embodiment, when cleaning the lens 2 having a lens diameter of 80φ, the sizes of the brushes 180A and 180B are set to 25φ. The brush 180A on the lens center side is arranged eccentric with respect to the geometric center 0 of the lens 2 as shown in FIG. If the brush 180A is arranged eccentrically from the geometric center 0 of the lens 2 in this way, the difference between the rotational speed at the geometric center 0 of the lens 2 and the rotational speed of the brush 180A does not become zero, and the lens The center of 2 can be reliably washed.

FIG. 23 is a diagram showing still another embodiment of the present invention.
In this embodiment, the concave surface 2b of the lens 2 is cleaned by two cleaning members 185A and 185B in the same manner as the convex surface cleaning. In cleaning, one cleaning member 185A is disposed at the approximate center of the lens 2, the other cleaning member 185B is disposed near the periphery, and the cleaning members 185A and 185B are swung in the radial direction of the lens 2. Wash. In this case, the cleaning members 185A and 185B can be formed to be sufficiently smaller than the outer diameter of the lens 2.

  In the embodiment described above, two cleaning members (64, 86, 91, 180A, 180B) are used for the convex surface cleaning, and one or two cleaning members (141, 146, 185A, 185B) are used for the concave surface cleaning. However, the present invention is not limited to this, and two or more cleaning members may be used.

  Although the present invention shows an example used for cleaning a progressive-power spectacle lens, the present invention can also be applied to a single-focus spectacle lens.

1 is a schematic plan view showing an embodiment of a lens cleaning device according to the present invention. It is an external appearance perspective view which shows a lens tray carrying-in part. It is an external appearance perspective view which shows a 1st lens conveyance mechanism. It is a perspective view which shows a lens centering part. It is an external appearance perspective view of a washing mechanism part. It is sectional drawing of a convex surface washing | cleaning means. It is a figure which shows the mode of the convex surface cleaning by a convex surface cleaning mechanism. It is a figure which shows the arrangement | positioning relationship of a cleaning member. (A), (b), (c) is a figure which shows the inclination-angle of the rocking | swiveling center of a 1st, 2nd, 3rd convex surface washing machine. It is sectional drawing which shows a lens adsorption | suction rotation mechanism. It is an external appearance perspective view which shows a lens inversion apparatus. It is sectional drawing of the same lens inversion apparatus. (A), (b) is the schematic plan view which shows the state before clamping the lens of the lens inversion apparatus, and the schematic plan view which shows the clamped state. It is an external appearance perspective view of a concave surface washing | cleaning mechanism part. It is sectional drawing of a concave surface washing machine. It is a figure which shows the rocking | swiveling angle of a 1st concave surface washing machine. It is a figure which shows the rocking | swiveling angle of a 2nd concave surface washing machine. It is an external appearance perspective view which shows the state which accommodated the lens in the washing rack. It is an external appearance perspective view which shows the shower washing | cleaning part of a washing tank part. It is a flowchart of a washing | cleaning process. It is a figure which shows the example of arrangement | positioning of the washing | cleaning member at the time of washing | cleaning without rocking a convex-surface washing machine. It is a figure which shows the other example of arrangement | positioning of the washing | cleaning member at the time of washing | cleaning without rocking a convex-surface washing machine. It is a figure which shows other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cleaning apparatus, 2 ... Lens, 2a ... Convex surface, 2b ... Concave surface, 3 ... Housing | casing, 5 ... Lens tray, 6 ... 1st tray conveyance mechanism, 7 ... 2nd tray conveyance mechanism, 8 ... 1st Lens transport mechanism, 9 ... centering case, 10 ... lens centering device, 11 ... cleaning mechanism, 12 ... second lens transport mechanism, 13 ... convex surface cleaning mechanism, 14 ... concave surface cleaning mechanism, 15 ... lens reversing device, DESCRIPTION OF SYMBOLS 16 ... Cleaning rack, 17 ... 1st lens storage mechanism, 18 ... Cleaning tank part, 19 ... 2nd lens conveyance mechanism, 50 ... 1st convex surface cleaning machine, 51 ... 2nd convex surface cleaning machine, 52 ... 1st 3 convex cleaning machine, 53... First concave cleaning machine, 54... Second concave cleaning machine, 64 .. cleaning member (brush), 127 .. cleaning member (pad), 70 .. cleaning liquid, 86, 91, 141. 146 ... Pad, 160 ... Shower tank, 161 ... Super Namiso, 162 ... deionized water tank, 163 ... pulling vessel, 164 ... drying chamber, A ... lens tray loading unit, B ... lens removal position, C ... lens centering portion, D-G ... lens standby position.

Claims (9)

The lens is rotated about the lens geometric center, the cleaning agent is sprayed onto the lens, and a cleaning member having flexibility attached to the rotating shaft is brought into contact with the surface to be cleaned to clean the surface to be cleaned. In the lens cleaning device
A plurality of rotating shafts that can move toward and away from the surface to be cleaned of the lens and rotate during cleaning; and a plurality of cleaning members that are swingably attached to the rotating shafts. A lens cleaning apparatus, wherein the lens cleaning apparatus is disposed at a central portion and a peripheral portion of the surface to be cleaned so as not to interfere with each other and to clean the entire surface to be cleaned. The lens cleaning apparatus according to claim 1,
The lens cleaning apparatus, wherein the cleaning member is at least one of a flexible brush and a pad. The lens cleaning apparatus according to claim 1,
The lens cleaning apparatus, wherein the plurality of rotation shafts swing in a radial direction of the lens during cleaning. The lens cleaning apparatus according to claim 1,
A cleaning device for a lens, wherein a cleaning member disposed at a central portion of a surface to be cleaned of the plurality of cleaning members is eccentric from a geometric center of the lens. The lens cleaning device according to claim 3,
A convex surface cleaning mechanism for cleaning the convex surface of the lens by the cleaning member;
The convex surface cleaning mechanism section includes a first convex surface cleaning machine that cleans the convex surface of the lens with two brushes, a second convex surface cleaning machine that cleans the convex surface of the lens with two hard pads, and a lens with two soft pads. A third convex cleaning machine for cleaning the convex surface of
The first, second, and third convex surface cleaning mechanisms are arranged such that the central axis of the swing has different inclination angles with respect to a perpendicular passing through the geometric center of the lens. Lens cleaning device. The lens cleaning device according to claim 3,
A concave surface cleaning mechanism for cleaning the concave surface of the lens by the cleaning member;
The concave surface cleaning mechanism unit includes a first concave surface cleaning machine that cleans the concave surface of the lens with a hard pad, and a second concave surface cleaning machine that cleans the concave surface of the lens with a soft pad,
The lens cleaning apparatus, wherein the first and second concave surface cleaning machines are arranged such that the central axis of the swing has different inclination angles with respect to a perpendicular passing through the geometric center of the lens. . The lens cleaning apparatus according to claim 1,
2. A lens cleaning device, wherein a lens comprising a set of two lenses is cleaned at the same time. The lens cleaning apparatus according to claim 1,
A lens cleaning apparatus using a neutral surfactant as a cleaning agent. The lens cleaning apparatus according to claim 1,
A lens cleaning device comprising: a lens reversing device for reversing the lens; and a cleaning tank section for cleaning the lens with a cleaning liquid.

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