JPH02279263A - Wiping device for lens - Google Patents

Abstract

PURPOSE:To eliminate the need for the positional adjustment of a wiper for a lens by wiping a lens face by a wiper having at least the same length as the outer diameter of the lens. CONSTITUTION:A wiper 12 is formed in a hourglass shape whose both end parts in the longitudinal direction are made in a large diameter and whose center part in a small diameter, in case of a lens 10 being a convex lens. This wiper 12 is simultaneously rotated centering around rotating center shafts A, B, while its abutting on the lens 10 whole face. Wiping can thus be performed without changing the wiper 12 for the lens 10 same as the length of the wiper 12 and small, a relative speed can be generated on all of the abutment faces on the lens 10 as well and the cleaning effect is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lens wiping device for removing sludge, moisture, etc. adhering to the surface of a lens after polishing.

C. Prior Art] -G. After polishing, sludge and moisture adhering to the lens surface are removed to prevent the occurrence of burns and stains.

Conventional 5 The wiping device for removing the sludge and moisture mentioned above is disclosed in Japanese Patent Application No. 6:3-1632 previously filed by the present applicant.
It is disclosed in No. 37.

FIGS. 6a and 6b are diagrams schematically showing the above-mentioned wiping device, and this wiping device moves the lens l (which may be a convex lens or a concave lens) as a workpiece in the optical axis direction and radial direction. Support member that supports while regulating (not shown)
is provided.

Also, on both sides of the lens 1, a wiping tool 2.3 is attached to the end.
The cleaning devices 4 and 5 to which the cleaning devices are attached are arranged to face each other so that the central axis of the lens and the central axis of the cleaning devices are shifted or can be shifted. In the former case, the size of the wiping tool 2.3 is larger than the radius of the lens 10, and the amount of displacement is such that the wiping tool 2.3 contacts the lens 1 from the center to the outer periphery! In the latter case, the wiping tool 2.3 is removed from the lens 1 by the movement of the cleaning device 4.5.
(See FIG. 6).Furthermore, nozzles 6.7 for supplying the cleaning liquid 8 are arranged toward both sides of the lens 1.

Then, each cleaning dish 4, 5 with a wiping tool 2, 3 attached thereto.
At least one of each cleaning plate 4.5 and the lens 1 is rotated while the cleaning plate 4.5 is in contact with the lens surface, and foreign matter etc. adhering to both surfaces of the lens is wiped off by rotating them relative to each other while supplying the cleaning liquid 8. .

(Problems to be Solved by the Invention) However, the above conventional wiping device has the following problems.

That is, in the apparatus shown in FIG. 6a, since wiping is performed by bringing the wiping tool 2.3 into contact with the lens 1 from the center to the outer periphery, the wiping tools 2, 3 and the cleaning dish are adjusted according to the size of the lens 1. 4 and 5 needed to be made easier. Then, it is necessary to replace the wiping tool 2.3 and the cleaning plates 4, 5 according to the size of the lens 1, and to adjust the wiping tool 2.3 by shifting it from the center of the lens 1 to the outer periphery. It was time consuming.

On the other hand, in the device shown in FIG. 6, wiping is performed by moving the wiping tool 2°3 from the center of the lens 1 to the outer periphery while contacting the lens 1, so the amount of movement thereof is adjusted in accordance with the size of the lens 1. There was a problem similar to the one above.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a lens wiping device that does not require adjustment of the position of the wiping tool with respect to the lens and is versatile for lenses. shall be.

[Means to solve the problem]

In order to achieve the above object, the lens wiping device of the present invention, as shown in the conceptual diagrams of FIGS. 12 are provided.

The holder 11 fixes the lens 10 in a predetermined position, and is configured to be able to hold and release the lens 10, for example, a chuck that automatically holds the lens 10 using compressed air as a driving force, or a chuck that automatically holds the lens 10 on a reference surface. The wiping tool 12, which uses a manual clamp jig or the like for pressing, is formed into a rod shape having at least the same length as the outer diameter of the lens 10, and is configured to have a shape corresponding to the lens 10. That is,
When the lens 10 is a convex lens, the wiping tool 12 is formed in a so-called Tsutsumi shape with a large diameter at both longitudinal ends and a small diameter at the center (see FIG. 1a), whereas when the lens 10 is a concave lens The wiping tool 12 is formed in a so-called barrel shape with a small diameter at both longitudinal ends and a large diameter at the center (see Figure 1). and a rotation center axis B that is perpendicular to the rotation center axis A, and are configured to be able to rotate simultaneously around both rotation center axes A and B.

[For production]

According to the lens wiping device configured as described above, the wiping tool 12
are simultaneously rotated about rotational axes A and B while contacting the entire surface of the lens 10. Therefore, the wiping process can be performed on the lens IO having the same length as the wiping tool 12 and smaller than the length of the wiping tool 12 without changing the wiping tool 12.
Relative speed can be generated on the entire contact surface with the cleaning (wiping) effect.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment) FIG. 2 is a diagram of a lens wiping device according to the present invention. In the drawing, reference numeral 21 indicates a holder for holding a lens 22. The holder 21 has a pair of chucks that can be opened and closed using compressed air. Claw 2
3a, 23b are provided, and chuck claws 23a, 2
By opening and closing 3b, the outer peripheral surface of the lens 22 is clamped and unclamped.

On the other hand, a pair of upper and lower wiping device bodies 24 and 25 are disposed facing each other on both upper and lower sides of the lens 22 held by the holder 21 with the lens 22 in between. a motor 27 for rotating a wiping tool 26 that removes sludge, moisture, etc. attached to the surface of the device 22;
is provided. The motor 27 is screwed to the upper surface of a bottomed cylindrical housing 29 via a support column. A rotating shaft portion 31 of an arm 30 holding a wiping tool 26 is connected to a rotating shaft 27 a of the motor 27 via a jig pin 32 . The rotating shaft portion 31 is rotatably supported by the housing 29 via a bearing 33 provided at the center of the upper surface of the housing 29, and the wiping tool 26 together with the Arno 30 is rotated about the rotation axis B by the rotational drive of the motor 27. It is now possible to do so.

The arm 30 is composed of a rotating shaft portion 31 and an arm body 34. The arm body 34 is formed in a U-shape,
It is fixed to the tip of the co-rotating shaft 31 at the center of its upper surface. Inside the arm body 34, a wiping tool 26 is rotatably provided around the rotation axis A via rotation shafts 35 provided on both sides of the arm body 34.One end of the zero rotation shaft 35 is connected to the arm body 34 A roller 36 is fixed to the end of the roller. Roller 3G is housing 2
9 is in contact with a ring-shaped member 37 fixed to the tip with a screw. Then, when the arm 30 is rotated around the rotation axis B by the rotational drive of the motor 27, the roller 36 rotates the ring-shaped member 371-.

The wiping tool 26 is rotated about the rotation axis via the rotation shaft 35.

The wiping tool 26 is formed into a rod shape having at least the same length as the outer diameter of the lens 22, and is configured to have a shape that matches the shape of the lens 22. That is, the wiping tool 26 is formed in a so-called Tsutsumi shape, with a large diameter at both ends in the longitudinal direction and a small diameter at the center. The wiping tool 26 is made of an appropriate material such as an elastic foam (such as a sponge), felt, or a brush, and is adapted to come into contact with the entire lens surface of the lens 22.

On the other hand, since the device main body 25 has the same structure as the device main body 24 described in F, the same parts are given the same numbers and the explanation thereof will be omitted. Moreover, on the -1- lower surface side of the lens 22,
A cleaning liquid supply nozzle (not shown) having an opening L toward each lens surface is provided.

Next, a method of wiping the lens using the wiping device described above will be explained.

First, the lens 22 is attached to the chuck claws 23a and 2 of the holder 21.
3b and held and fixed between the wiping tools 2G and 26. 6. Next, the cleaning liquid is discharged and supplied from the nozzle to the lens 22 one by one or after being discharged, the device main body 24, 25 is moved in the direction of the lens 22. . And wipe! 426 are rotated by the drive of the motor 27 while contacting the lens surface.

That is, the rotation of the motor 27 of the wiping tool 26 is
2 to the arm 30 and rotated together with the arm 30 around the rotation axis B, and at the same time, the roller 36 rotates the ring-shaped member 37F, and the rotation of the roller 36 causes the rotation to rotate via the M rotation axis 35. It is rotated around the axis A while being in contact with the lens surface. By rotating the wiping tool 26, both sides of the lens surface of the lens 22 are simultaneously wiped.

According to this embodiment, since the wiping work is performed by bringing the wiping pad 26 into contact with the entire lens surface, the lens 22 can be replaced without adjusting the relative positional relationship between the wiping pad 26 and the lens 22. can. Moreover, the wiping tool 26 is connected to the rotation axes A and B.
Since the wiping tool 213 rotates around the lens at the same time to perform the wiping operation, the portion where the relative speed between the wiping tool 213 and the lens surface is O is /
, I: Since no sludge, moisture, etc. adhere to the lens surface can be completely removed. Furthermore, since one motor 27 can rotate around the rotational axes A and B, it can be manufactured at low cost.

In addition, in the above embodiment, the case of wiping a convex lens was explained, but in the case of wiping a concave lens,
The shape of the wiping tool 26 can be adapted to the shape of the lens surface. That is, as shown in Figure 1 (V), the lens wiping work is performed by forming the wiping tool into a so-called barrel shape, with both longitudinal ends having a small diameter and the center having a large diameter.
Moreover, in the case of a lens having one side concave and one side convex, one side can be a honeycomb shape and the other side can be a barrel shape.

In the above embodiment, if the nozzle for discharging and supplying the cleaning liquid is configured to approach and move away from the lens 22 in accordance with the supply and discharge of the lens 22, the supply and discharge operations can be facilitated.

The third part is a partially sectional front view showing another embodiment of the lens wiping device according to the present invention.

The wiping device of this embodiment is constructed by arranging only the device body 24 of the first embodiment on one side.

In the wiping operation of the lens, first, one lens surface of the lens is wiped off by the same process as above, and then the holder 21 (or the chuck claws 23a, 23
By rotating b) and wiping the other lens surface, the lens wiping operation can be carried out while producing the same effects as in the first embodiment.

(Second Embodiment) FIG. 4 is a front view showing a second embodiment of a lens wiping device 40 according to the present invention. In this embodiment, an apparatus for cleaning a convex lens is exemplified. In addition, in the apparatus of this embodiment, the same members as those of the apparatus of the first embodiment are given the same numbers and their explanations will be omitted.

The lens wiping device 40 of this embodiment is characterized by a motor 27 for rotating the wiping tool 26 provided in the device main body 41, 42 around the rotation axis B to around the rotation axis A.
This is achieved by a separately provided motor 43.

That is, the motor 43 is fixed to the upper end of the arm body 34 via the L plate 44. Rotating shaft 43 of motor 43
One end of a rotating shaft 35 provided on the side of the arm body 34 is connected to a through a joint 45.

Then, the lens 2 is cleaned using the wiping device 40 of this embodiment.
When performing the wiping work 2, the wiping tool 26 is connected to the motor 27.
The motor 43 is driven to rotate around the rotation axis B, and at the same time, the motor 43 is driven to rotate around the rotation axis A.

The rest is the same as the first embodiment, so the explanation thereof will be omitted.

According to this embodiment, the same functions and effects as those of the first embodiment described above can be obtained. Furthermore, since the wiping tool 26 can be independently rotated around the rotation axes A and B by the motors 43 and 27 provided separately, it is possible to set conditions for a higher wiping effect and improve the wiping ability. can.

In addition, even in this embodiment, the wiping tool 26 can be selected and implemented in accordance with the shape of the lens 22 in the same manner as described in the first embodiment.

FIG. 5 is a front view showing another embodiment of the lens wiping device according to the present invention.

The wiping device of this embodiment is constructed by arranging only the device main body 41 of the second embodiment on one side.

In the lens wiping operation, first, one lens surface of the lens is wiped off using the same process as above, and then the holder 21 (or chuck claw 23a,
By rotating the lens 23 b) and wiping the other lens surface, the lens wiping operation can be carried out while producing the same effects as in the first embodiment.

〔Effect of the invention〕

As described above, according to the lens wiping device of the present invention, since the lens surface is wiped with a wiping tool having at least the same length as the outer diameter of the lens, there is no need to adjust the position of the wiping tool with respect to the lens. . Furthermore, the wiping tool does not have any longitudinal parts, making it possible to completely remove sludge and moisture adhering to the lens surface.

[Brief explanation of drawings]

FIGS. 1a and 1b are conceptual perspective views of a lens wiping device according to the present invention, and FIG. 2 is a partially sectional front view of a first embodiment of the lens wiping device according to the present invention. , FIG. 3 is a front view showing a partially modified example of the second embodiment of the present invention, FIG. 4 is a front view showing the second embodiment of the present invention, and FIG. 5 is a front view of the second embodiment of the present invention. A front view showing a partially modified example of the second embodiment, and sixth views a and b are front views showing a conventional lens wiping device. 20... Lens wiping device 21... Holder 22... Lens 26... Wiping tool 27... Motor patent creator Olympus Optical T-Gyo Co., Ltd. (1) (a) '-23a (23b) (a) (b) ?

Claims (1)

[Claims] A holder for fixing the lens in a predetermined position, a rod-shaped wiping tool having at least the same length as the outer diameter of the lens and formed into a shape corresponding to the lens shape, and a rod-shaped wiping tool that is perpendicular to the longitudinal direction of the wiping tool A lens wiping device comprising a driving means for rotating a wiping tool around both rotation center axes.