JP2001075241A - Device and method for cleaning optical part and film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleaning device for optical part by which dust or the like stuck onto the surface of an optical part is easily dropped and also the dust or soiling is surely removed. SOLUTION: This device is a cleaning device for optical part to clean an optical part exposed outside a film unit with lens. In this case, it is provided with a holding means to hold a member by which the optical axis of the optical part is nearly horizontally positioned and at least the optical part is fixed, a moistening means 3 to moisten the optical part and a cleaning means 4 by which a wiping member is moved along the surface of the optical part by making the wiping part abut on the optical part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical component cleaning apparatus for cleaning optical components exposed on the outer surface of a lens-fitted film unit, an optical component cleaning method, and a lens-fitted film unit.

[0002]

2. Description of the Related Art A photographed film unit with a lens is directly sent to a photo lab where the film is extracted for development. Manufacturers of lens-fitted film units collect lens-fitted film units from which the film has been extracted, disassemble them into units and parts, and conduct inspections. Units and parts determined to be non-defective are reused in newly produced film units with lenses.

[0003] Among the collected components, optical components such as a photographing lens, an objective lens, and an eyepiece are often contaminated by dust and fingerprints because they are exposed to the outside through an opening. . The taking lens is fixed to a taking lens frame or the like, and the objective lens and the eyepiece are fixed to the unit main body, or are fixed to the front cover and the rear cover. For this reason, it is very troublesome to disassemble these optical components into separate components, clean them, and reassemble them, and it is easy to generate defects such as scratches. It is desirable to clean and reuse optical components.

[0004] However, these optical components are generally arranged at the back of the opening, and cleaning the surface of the optical components by hand requires a lot of man-hours. Accordingly, automation of cleaning of optical components has been demanded.

[0005] Japanese Patent Application Laid-Open No. 10-62915 discloses such automation of cleaning of optical parts.
According to the publication, the optical axis of a photographic lens of a film unit with a lens is held vertically upward, dust is blown off by an air blow device, cleaning liquid is sprayed by a cleaning sprayer, cleaning is performed by a brush, and cleaning liquid is blown by dry air. A cleaning method is described in which the surface of a lens is blown off and a stain is removed using a cleaning tape.

Next, FIGS. 9 to 12 show a conventional assembling mode of a photographing lens, an objective lens, and an eyepiece in a film unit with a lens. 9 is a front view of the photographing lens and the objective lens, FIG. 10 is a sectional view taken along line AA of FIG. 9, FIG. 11 is a sectional view taken along line BB of FIG. 9, and FIG.

In each of the drawings, a photographing lens 201 is fixed to a photographing lens frame 202 and is exposed through an opening 202a. Further, the objective lens 203 is fixed to a finder base 207 formed in the unit main body, and
4 is exposed through the opening 204a provided in the eyepiece 20.
Reference numeral 5 denotes a finder base 207 formed on the unit body.
And is exposed through an opening 206 a provided in the rear cover 206.

[0008]

However, if the technique disclosed in Japanese Patent Application Laid-Open No. 10-62915 is used for cleaning the optical parts, the optical parts to be cleaned are arranged upward, so that, for example, In this case, it was difficult to completely remove dust and cleaning liquid attached to the surface 201a. The same applies to the surface 203a of the objective lens 203 and the surface 205a of the eyepiece 205.

The first invention has been made in view of such a problem, and proposes an optical component cleaning device and an optical component cleaning method capable of reliably removing dust and dirt attached to the surface of an optical component. The first purpose is to do so.

[0010] For example, in FIG.
2a, the rear end 202c of the inner wall 202b is in contact with the taking lens 201, so that the inner wall 202b is
The angle formed with 1a was acute, and it was very difficult to clean the vicinity of the rear end 202c, that is, the periphery of the surface 201a of the taking lens 201.

The same applies to FIG.
The rear end 204c of the inner wall 204b in 4a is in contact with or close to the objective lens 203, and the rear end 206c of the inner wall 206b in the opening 206a is in contact with or close to the eyepiece 205. For this reason, the inner wall portion 204b
The angle formed between the inner wall portion 206b and the surface 205a of the eyepiece 205 is a right angle. Therefore, the peripheral portion of the surface 203a of the objective lens 203 and the eyepiece 20
It was also very difficult to clean the periphery of the surface 205a of No.5.

The second invention has been made in view of such a problem, and it is a second invention to propose a lens-fitted film unit that can easily clean the periphery of an optical component.
The purpose of.

[0013]

The above-mentioned first object is achieved by any of the following means.

An optical component cleaning apparatus for cleaning an optical component exposed outside a film unit with a lens,
Holding means for holding a member to which at least the optical component is fixed by positioning the optical axis of the optical component substantially horizontally, humidifying means for humidifying the optical component, and contacting the wiping member with the optical component; Cleaning means for moving a wiping member along the surface of the optical component.

In an optical component cleaning method for cleaning an optical component exposed to the outside of a film unit with a lens,
A holding step of holding the member to which at least the optical component is fixed by positioning the optical axis of the optical component substantially horizontally, a humidifying step of humidifying the optical component, and bringing a wiping member into contact with the optical component; A cleaning step of moving a wiping member along the surface of the optical component.

The above-mentioned second object is achieved by the following means.

In a film unit with a lens in which an optical component is exposed through an opening provided in an exterior member, the opening is a first opening located on the surface side of the exterior member and a first opening located on the optical component side. A second opening having an inner diameter larger than that of the first opening, wherein a rear end of the first opening is not in contact with the optical component.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] An embodiment of an optical component cleaning apparatus according to the present invention will be described below.

First, an outline of the optical component cleaning apparatus will be described based on a top view showing each step of FIG.

In FIG. 1, a film unit 1 with a lens for cleaning the surface of an optical component is loaded on a pallet 9 in such a manner that the optical axis of the taking lens is horizontal. The pallet 9 is formed with three frames so that the loaded film unit with lens 1 does not fall.

The holding means described in the claims corresponds to the pallet 9.

First, the pallet 9 placed on the conveyor 10 is transported by the conveyor 10 according to a command from control means of a computer (not shown), and the film unit with lens 1 is transported to the spraying step P1 in which the blowing means 2 is provided. I do. Here, high-pressure clean air is blown onto the surface of the optical component to blow off attached dust.

The high-pressure clean air may be high-pressure air, but it is desirable to use high-pressure static elimination air to remove static electricity at the same time. Alternatively, high-pressure hot air may be used. Furthermore, after blowing high-pressure cold air, high-pressure hot air may be blown. By doing this,
The attached dust can be efficiently blown off.

Next, the conveyor 10 is controlled by a command from the control means.
Humidifying means 3
Is transported to the humidifying process P2 with Here, humid air is sprayed on the surface of the optical component to humidify the adhered dirt.

Subsequently, the conveyor 1 is controlled by a command from the control means.
By 0, the film unit with lens 1 is conveyed to the wiping step P3 with the wiping means 4. Here, the moistened dirt is wiped off using a nonwoven fabric referred to as a wiping member in the claims. Thus, the step of cleaning the surface of the optical component ends.

Thereafter, the conveyor 1 is controlled by a command from the control means.
By 0, the film unit with lens 1 is further transported, and the film unit with lens 1 is removed from the pallet 9.

Hereinafter, each cleaning means will be described in detail with reference to FIGS.

First, the spraying means in the first step will be described with reference to the cross sectional view of the spraying means shown in FIG.

In FIG. 2, reference numeral 21 denotes a spray shaft having a brush 24 made of a soft resin at the tip. 22 is the spraying shaft 2
This is a motor that rotates 1. When the fan 26 rotates, clean air is sucked in from the intake port 27, and the surface of the optical component to be cleaned from the gap of the brush 24 through the hollow portion 25, in this case, the surface of the taking lens 101 held by the taking lens frame 102. Spray. 29 is the spraying shaft 21
Is a first robot device which holds the brush 24 via a motor 22, which can drive the spraying shaft 21 in a three-dimensional direction according to a command from a control unit, and moves the brush 24 against the surface of the photographing lens 101. The brush 24 can be moved along the surface of the taking lens 101 while moving closer and further away.

The film unit 1 with the lens is conveyed to the spraying step P1 having the spraying means 2, and when the spraying means 2 is started, the first robot unit 29 advances the brush 24 to the vicinity of the photographing lens 101 by a command from the control means. After that, the spray shaft 21 is rotated by the motor 22 together with the brush 24, and the fan 26 is rotated at the same time.
The clean air introduced from above is strongly blown onto the taking lens 101 through the hollow portion 25.

In this state, the first robot device 29 moves the brush 24 from the center of the photographic lens 101 to the peripheral portion thereof, and blows off dust and the like on the surface of the photographic lens 101. After performing this operation for a predetermined time, the spray shaft 21 is retracted from the photographing lens 101 together with the brush 24.

Next, the humidifying means 3 in the humidifying step will be described with reference to FIG.

In FIG. 1, 31 is a humidifier main body, 32 is a humidifier outlet, and 33 is a humidified air intake. Reference numeral 39 denotes a second robot device which holds the humidifier main body 31 and can be driven in a three-dimensional direction by a command from the control means. The second robot device 39 includes a photographing lens 101
The outlet 32 is moved closer to or farther from the surface of the camera, and the outlet 32 is moved along the surface of the taking lens 101.

When the film unit with lens 1 is transported to the humidifying step P2 having the humidifying means 3 and the humidifying means 3 is started, the second robot device 39 brings the outlet 32 close to the lens 101, and then the humidifier body 31 Is driven to inhale humidified air from a humidified air generator (not shown) through the intake port 33, and shoot the lens 1 through the outlet port 32.
01 is sprayed on the surface.

As a humidifying device, for example, an ultrasonic humidifying device is used.

In this case as well, the outlet 32 is moved from the center of the taking lens 101 toward the peripheral portion by driving the second robot device 39, and the surface of the taking lens 101 is blown with humidified air.

Since humidified air is blown, moisture does not flow on the surface of the taking lens 101.

The humidified air to be blown may be water vapor in general, but when dissolving oil or the like adhering to the surface of the taking lens 101, steam containing a diluted solvent may be used.

Next, the wiping means 4 in the wiping step will be described with reference to the cross-sectional view of the wiping means shown in FIG.

In FIG. 3, reference numeral 51 denotes a nonwoven fabric for cleaning the surface of the optical component, which is formed in a roll shape. One end of the nonwoven fabric 51 is wound around a driven roller 52,
The tension is given by two tension rollers 54, and the tension roller 54 is attached to the driving roller 53 at the other end. Reference numeral 61 denotes a cleaning shaft, and a brush 63 made of resin and having a slight rigidity is provided at the right end.
have. Reference numeral 62 denotes a solenoid for finely moving the wiping shaft 61 in the left-right direction in the figure, and can be finely moved, for example, by about 0.5 mm. Reference numeral 69 denotes a third robot device that holds the nonwoven fabric 51 together with the driven roller 52, the tension roller 54, and the drive roller 53, and further holds the solenoid 62 and the wiping shaft 61, and can be driven three-dimensionally. The third robot device 69 includes a photographing lens 101
The non-woven fabric 51 is moved closer to or farther from the surface of the photographic lens 101, and is further moved along the surface of the taking lens 101.

When the film unit with lens 1 is conveyed to the wiping step P3 and the wiping means 4 is started, the third robot unit 69 moves the wiping shaft 61 in the direction of the taking lens 101 in accordance with a command from the control means. Then, when the brush 63 at the tip presses the back surface of the nonwoven fabric 51 and the surface of the nonwoven fabric 51 comes into contact with the surface of the taking lens 101, the movement of the wiping shaft 61 is stopped.

Subsequently, the cleaning shaft 61 is finely moved left and right by intermittently operating the solenoid 62,
While the nonwoven fabric 51 is intermittently brought into contact with the surface of the photographic lens 101 by 3, the nonwoven fabric 51 is moved from the center to the periphery of the photographic lens 101 together with the brush 63 by the driving of the third robot device 69. Wipe off dust and dirt attached to the surface.

When the wiping is completed, the third robot device 69 operates according to a command from the control means to move the brush 63 to the nonwoven fabric 5.
1 slightly away from the back. In this state, the drive roller 53
Is rotated to wind up the nonwoven fabric 51 from the driven roller 52 side, so that the portion of the nonwoven fabric 51 that is soiled by wiping moves. Therefore, the nonwoven fabric 51 facing the photographing lens 101 to be newly cleaned always has a new surface free from dirt.

It is not always necessary to wind up the nonwoven fabric 51 to make a new surface every time a new photographing lens 101 is conveyed.

The above is the cleaning device for automatically cleaning the photographic lens of the film unit with lens collected from the market. However, if the program of the control means (not shown) is changed, the objective lens and eyepiece in the finder of the film unit with lens can be changed. Initially, cleaning of various optical components can be performed with the same configuration.

The object to be placed on the pallet 9 does not necessarily need to be a completed film unit with a lens, and may be in a state where the front cover and the rear cover have been removed, and the objective lens is held. It may be a unit of the front cover or a unit of the cover after holding the eyepiece.

As described above, after the dust adhering to the surface of the optical component is blown off, the dirt adhering to the surface of the optical component is dissolved by humidification that does not cause moisture to flow out. Since it is wiped by sliding on the surface, dirt and dust on the surface of the optical component can be reliably removed.

Since the wiping is performed in a humidified state, no static electricity is generated in the optical parts.

Further, since the optical axis of the optical component is held horizontally, dust and the like adhering to the optical component easily fall off.

Further, if the objective lens and the eyepiece of the finder are exposed from the portion held by the pallet 9, the objective lens and the eyepiece can be cleaned at the same time.

Next, a cleaning device slightly different from the above-described cleaning device for a film unit with a lens will be described.

The cleaning apparatus according to the present embodiment is different from the above-described cleaning apparatus only in the wiping step, and the other steps are the same. Accordingly, only different wiping means will be described based on the cross-sectional view of the wiping means shown in FIG.

In FIG. 4, reference numeral 71 denotes a nonwoven fabric for cleaning the surface of the optical component, which is formed in a roll shape. One end of the nonwoven fabric 71 is wound around a driven roller 72,
The tension is applied by two tension rollers 74, and the other end is attached to the drive roller 73. Reference numeral 81 denotes a suction shaft, which has a hollow portion 82 formed hollow inside, and a suction tip formed of a plurality of thin tubes communicating with the hollow portion 82 at the right end, and formed of a somewhat rigid elastic resin. A portion 83 is provided. The left part of the suction shaft 81 is formed to be thick, and a fan 84 is disposed in the left part. The air sucked from the suction front end part 83 by the fan 84 is discharged to the outside through the exhaust port 85. Reference numeral 89 denotes a fourth robot device that holds the nonwoven fabric 71 together with the driven roller 72, the tension roller 74, and the drive roller 73, further holds the suction shaft 81, and drives the three-dimensional direction.

When the film unit with lens 1 is conveyed to the wiping step by the conveyor 10, the fourth robot unit 89 moves the suction shaft 81 to the photographing lens 1 according to a command from the control means.
Move in the direction of 01. Then, the back surface of the nonwoven fabric 71 is pressed by the suction leading end 83, and the movement of the suction shaft 81 is stopped when the surface of the nonwoven fabric 71 comes into contact with the surface of the photographing lens 101.

Subsequently, the fourth robot device 89 is driven by the command of the control means while the back end of the nonwoven fabric 71 is sucked by the suction tip 83 while the fan 84 is rotated, and the nonwoven fabric 71 is sucked together with the suction tip 83 by the suction shaft 81. To move the non-woven fabric 71 from the center to the peripheral portion of the photographic lens 101 while cleaning the surface of the photographic lens 101 for moisture, dirt, dust and the like.

When the wiping of the photographing lens 101 is completed, the fourth robot device 89 is operated by the command of the control means to move the suction shaft 81 backward, and at the same time, the suction tip 83 is moved to the nonwoven fabric 7.
Separate from 1.

In this state, the driving roller 73 rotates,
Since the nonwoven fabric 71 is taken up from the driven roller 72 side, the stained portion of the nonwoven fabric 71 moves by wiping the lens, and the nonwoven fabric 71 facing the photographic lens 101 to be newly cleaned becomes a new surface free of dirt.

As described above, in the wiping step of the present embodiment, dirt and dust can be more strongly sucked into the nonwoven fabric by the use of the suction means than in the wiping step described above. Surface can be cleaned.

The cleaning device described above can be applied to cleaning of a newly produced lens-equipped film unit in addition to the lens-equipped film unit to be reused.

[Second Embodiment] A second embodiment will be described with reference to FIGS.

FIG. 5 is a front view of a photographing lens and an objective lens.
6 is a sectional view taken along line AA of FIG. 5, FIG. 7 is a sectional view taken along line BB of FIG. 5, and FIG. 8 is a front view of the eyepiece.

In FIG. 5 and FIG.
Are held in the taking lens frame 102. The leading end of the taking lens frame 102 is fitted to an opening provided in a front cover 104 as an exterior member, and is exposed to the outside. The taking lens frame 102 has two openings having different inner diameters with respect to the taking lens 101. One is a first opening 102a located on the front surface side, and the other is a second opening 102b located on the photographing lens 102 side and having an inner diameter larger than the first opening 102a. And the taking lens 101 is the second
It is held in contact with the step on the back side of the opening 102b. Further, the inner wall 102c of the first opening 102a is formed on a slope having a smaller inner diameter toward the photographic lens 101 side.

As described above, the second opening 102b holding the taking lens 101 from the front is hidden from the outside, and the rear end 102d of the first opening 102a does not come into contact with the taking lens 101. Floating. Therefore, taking lens 1
01 when cleaning the surface of at least the first opening 10
In the range of 2a, the photographing lens 101 can be sufficiently cleaned up to the peripheral portion. Further, dust that cannot be sucked out to the outside at the time of this cleaning is pushed into the inner wall of the second opening 102b, so that even if the dust remains, it cannot be visually recognized from the outside.

The inner wall 102c of the first opening 102a
Is formed on a slope having a smaller inner dimension toward the photographic lens 101, so that it is easy to clean with a non-woven fabric or the like and to easily suck dust.

The same applies to the objective lens 103 and the eyepiece 105. As shown in FIG.
The eyepiece 3 and the eyepiece 105 are fixed to a finder base 107 formed in the unit body. Front cover 104
The first opening 104a is opposed to the objective lens 103.
And a second opening 104b are provided.
Is larger in inner law, and the inner wall 10 of the first opening 104a is larger.
Reference numeral 4c is formed on an inclined surface having a smaller inner diameter toward the objective lens 103 side. Also, the rear end 10 of the first opening 104a.
4d floats without contacting the objective lens 103.

The rear cover 106 is provided with a first opening 106a and a second opening 106b facing the eyepiece lens 105, and the inner diameter of the second opening 106b is larger than that of the first opening 106a. An inner wall 106c of the inner surface 106a is formed on an inclined surface having a smaller inner diameter toward the eyepiece lens 105 side. Also, the first
The rear end 106d of the opening 106a floats without contacting the eyepiece 105.

Therefore, at least the first openings 104a,
In the range of 106a, the objective lens 103 and the eyepiece 10
5 can be sufficiently cleaned to the peripheral portion, and the dust that cannot be completely sucked out at the time of this cleaning is removed from the second openings 104b, 10b.
Since it is pushed toward the inner wall of 6b, even if dust remains, it cannot be visually recognized from the outside. Also, the first opening 10
Since the inner wall portions 104c and 106c of the 4a and 106a are formed on an inclined surface having a smaller inner depth toward the inner side, cleaning with a brush or a nonwoven fabric is easy, and dust is easily sucked.

Unlike the opening for the taking lens 101, the opening for the objective lens 103 and the eyepiece 105 is formed in a rectangular shape. Therefore, in the present embodiment, as shown in FIG. 5, the corner 104e formed by the long side and the short side of the first opening 104a with respect to the objective lens 103 is formed in an arc. As shown in FIG. 8, a corner 106e formed by a long side and a short side of the first opening 106a with respect to the eyepiece 105 is also formed in an arc.

As a result, it is possible to sufficiently clean the object lens 103 and the eyepiece lens 105 facing the corners 104e and 106e by bringing the brush or nonwoven fabric into contact with the corners.

[0070]

According to the optical component cleaning device according to the first to fifth aspects and the optical component cleaning method according to the sixth to tenth aspects, dust or the like attached to the surface of the optical component is easily dropped off, and Dust and dirt can be reliably removed.

According to the film unit with the lens according to the eleventh aspect, it is possible to reliably clean the periphery of the optical component.

According to the film unit with the lens according to the twelfth aspect, a brush or a nonwoven fabric can be easily inserted from the opening.

According to the film unit with the lens according to the thirteenth aspect, even if the opening is rectangular, the corner can be reliably cleaned.

[Brief description of the drawings]

FIG. 1 is a top view schematically showing an optical component cleaning device.

FIG. 2 is a cross-sectional view of the spraying means.

FIG. 3 is a cross-sectional view of the wiping means.

FIG. 4 is a cross-sectional view of the wiping means different from FIG.

FIG. 5 is a front view of a photographing lens and an objective lens.

6 is a sectional view taken along line AA of FIG.

FIG. 7 is a sectional view taken along line BB of FIG. 5;

FIG. 8 is a front view of the eyepiece.

FIG. 9 is a front view of a conventional photographing lens and an objective lens.

FIG. 10 is a sectional view taken along line AA of FIG. 9;

FIG. 11 is a sectional view taken along line BB of FIG. 9;

FIG. 12 is a front view of a conventional eyepiece.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 film unit with lens 2 spraying means 3 humidifying means 4 wiping means 9 pallet 10 conveyor 24, 63 brush 26, 84 fan 51, 71 non-woven fabric 101, 201 shooting lens 102, 202 shooting lens frame 102a, 104a, 106a first opening Portions 102b, 104b, 106b Second openings 202a, 204a, 206a Openings 103, 203 Objective lenses 104, 204 Front cover 105, 205 Eyepieces 106, 206 Rear cover

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G03B 17/04 G03B 17/04 (72) Inventor Kishiro Suzuki 1-5-5 Takasukadai, Nishi-ku, Kobe-shi, Hyogo Prefecture Within Konica Corporation (72) Inventor Akihiko Fujiwara 1-3-5 Takatsukadai, Nishi-ku, Kobe City, Hyogo Prefecture Inside Konica Corporation (72) Inventor Tsutomu Kako 1-3-5 Takatsukadai, Nishi-ku, Kobe City, Hyogo Prefecture Inside Nika Co., Ltd. (72) Inventor Kenichi Kodama 1-5-3 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo Konica Corporation F-term (reference) 2H100 EE06 2H101 AA01 3B116 AA03 AB14 AB44 BA02 BA08 BA13 BA22 BA34 BB01 BB22 BB32 BB43 BB62 BB81

Claims (13)

[Claims] An optical component cleaning device for cleaning an optical component exposed outside a film unit with a lens,
Holding means for holding a member to which at least the optical component is fixed by positioning the optical axis of the optical component substantially horizontally, humidifying means for humidifying the optical component, and contacting the wiping member with the optical component; Cleaning means for moving a wiping member along the surface of the optical component. 2. The wiping member is a non-woven fabric wound in a roll, and an unused non-woven fabric is brought into contact with the optical component by appropriately winding one end of the non-woven fabric. An optical component cleaning device according to claim 1. 3. The optical component cleaning apparatus according to claim 1, wherein the wiping unit is provided with a suction unit that suctions a surface of the optical component through the nonwoven fabric. 4. The optical component cleaning apparatus according to claim 1, further comprising a blowing unit that blows high-pressure clean air to the optical component before the humidifying unit humidifies. 5. The method according to claim 5, wherein the holding unit is placed on a conveyor.
The optical component cleaning apparatus according to claim 4, wherein the spraying unit, the humidifying unit, and the wiping unit are transported to a certain position. 6. An optical component cleaning method for cleaning an optical component exposed outside a film unit with a lens,
A holding step of holding the member to which at least the optical component is fixed by positioning the optical axis of the optical component substantially horizontally, a humidifying step of humidifying the optical component, and bringing a wiping member into contact with the optical component; A cleaning step of moving a wiping member along the surface of the optical component. 7. The wiping member is a non-woven fabric wound in a roll shape, and an unused non-woven fabric is brought into contact with the optical component by appropriately winding one end of the non-woven fabric. 3. The method of cleaning an optical component according to item 1. 8. The method for cleaning an optical component according to claim 6, wherein in the wiping step, a surface of the optical component is suctioned through the nonwoven fabric. 9. The optical component cleaning apparatus according to claim 6, further comprising a blowing step of blowing high-pressure clean air to the optical component before the humidifying unit humidifies. 10. A step of providing holding means for holding at least a member to which the optical component is fixed with the optical axis of the optical component positioned substantially horizontally, and mounting the holding means on a conveyor. 10. The optical component cleaning method according to claim 9, wherein the conveyor transports the holding means to the spraying step, the humidifying step, and the wiping step. 11. A film unit with a lens in which an optical component is exposed from an opening provided in an exterior member, wherein the opening has a first opening located on the surface side of the exterior member and a first opening located on the optical component side. A second opening having a larger inner diameter than the first opening, wherein a rear end of the first opening is not in contact with the optical component. . 12. The film unit with a lens according to claim 11, wherein an inner wall of the first opening is formed on a slope having a smaller inner diameter toward the optical component. 13. The optical component is an objective lens or an eyepiece, wherein the first opening is formed in a substantially rectangular shape, and a corner formed by a long side and a short side of the first opening is formed in an arc. The film unit with a lens according to claim 11, wherein the film unit is formed.