JP4704796B2 - Objective lens protector and objective lens processing method - Google Patents

Description

  The present invention relates to an objective lens protector and an objective lens processing method.

Conventionally, when observation is performed in a state where the tip surface of the objective lens is in contact with immersion oil or the like, such as an immersion objective lens, the immersion oil adhering to the lens tip after use is made of ether and alcohol. : 3 mixed solution or EE-6310 is included in a very small amount of gauze and carefully wiped off (for example, see Non-Patent Document 1).
Olympus Optical Co., Ltd., “Instruction Manual BX51 / BX52 System Biological Microscope”, June 2000, p. 20

  However, in the case of a microscope apparatus that observes a living body as it is, it is necessary to insert the tip of the objective lens into the living body for observation. For this reason, before and after observation, the objective lens needs to be disinfected or sterilized over a wide range including not only the tip surface but also the tip portion. In this case, the objective lens before disinfection or sterilization may be contaminated, and it is not preferable to directly operate the objective lens. Further, when the objective lens after sterilization or sterilization is directly handled by hand, there is a disadvantage that some bacteria or dust adheres to the objective lens from the hand.

  In addition, if the tip of the objective lens is configured to have a small diameter to observe a living body with less invasiveness, the rigidity against external force decreases, so the tip of the small diameter is used during transportation, storage, disinfection, sterilization, or handling. It is also necessary to protect the part from external force.

  The present invention has been made in view of the above-described circumstances, and can improve the handleability during disinfection or sterilization of the objective lens, and protect the objective lens during transport, storage, or handling. It is an object of the present invention to provide an objective lens protector and an objective lens processing method.

In order to achieve the above object, the present invention provides the following means.
The present invention is formed in a substantially ring shape covering the outer periphery of the objective lens, and is attached to the objective lens in a state where the attachment screw to the microscope main body is exposed and attached to the objective lens. A protective member that is fixed and extends over substantially the entire length of the objective lens that is attached to the attachment portion, and that surrounds the objective lens at an interval radially outward of the objective lens, and the attachment portion includes the attachment member. Provided is an objective lens protector provided with a locking mechanism for locking the portion and the objective lens so as not to move relative to each other in the circumferential direction.

  According to the present invention, when the substantially ring-shaped attachment portion is attached to the objective lens, the protective member fixed to the attachment portion extends over substantially the entire length of the objective lens and is spaced radially outward so as to surround the objective lens. It is arranged with a gap. Therefore, even if an external force is applied to the protective member, the external force is prevented from being transmitted to the objective lens, and even when the objective lens has a thin tip portion having low rigidity, the thin tip portion is prevented by the external force. It can be protected from damage.

  At this time, by operating the locking mechanism, the mounting portion and the objective lens are locked so as not to move relative to each other in the circumferential direction. Therefore, by gripping and handling the mounting portion and the protection member, it is possible to handle the objective lens without directly touching it.

  In this case, since the mounting part is attached to the objective lens with the mounting screw to the microscope body exposed, the objective lens protector is attached to the objective lens attached to the microscope body to operate the locking mechanism. By rotating the objective lens protector around the optical axis, the objective lens can be detached from the microscope body without directly touching the objective lens by hand. Further, even when the objective lens is attached to the microscope body, the objective lens is not directly touched by hand. Accordingly, it is possible to avoid touching the objective lens that is contaminated with the specimen after use by hand, and to prevent the clean objective lens after cleaning, disinfection, or sterilization from being soiled by touching by hand.

In the said invention, it is preferable that the notch which makes the said attachment lens detachable in the radial direction is provided in the said attaching part.
With this configuration, when the objective lens protector is attached to the objective lens, or when the objective lens protector attached to the objective lens is removed from the objective lens, the tip of the objective lens is completely removed from the substantially ring-shaped attachment portion. It can be attached and detached without being extracted in the direction of the optical axis. In other words, the objective lens protector can be attached and detached even in a place where the space on the distal end side of the objective lens is narrow by attaching and detaching the distal end of the objective lens in the radial direction through a notch provided in the attachment portion. be able to.

Moreover, in the said invention, it is preferable that the said protection member is provided with the penetration part penetrated to radial direction.
By configuring in this way, even when the objective lens protector is attached to the objective lens, the objective lens inside the objective lens protector can be visually recognized from the outside in the radial direction, and through the through portion. Simple cleaning work can be performed. For example, before disinfecting or sterilizing the objective lens, clean the body fluid, blood, or protein adhering to the objective lens through the penetrating part while roughly checking the body lens for subsequent disinfection or sterilization. Can be done efficiently.

Furthermore, in the said invention, it is preferable to provide the cap fastened by the attachment screw of the said objective lens, and the sealing member which seals between the said cap and objective lenses over a perimeter.
With this configuration, the opening on the attachment screw side of the objective lens is closed by the cap, and is sealed over the entire circumference by the seal member. Thereby, it becomes possible to immerse an objective lens in a disinfection tank or a sterilization tank as it is, and disinfection or a sterilization process can be simplified.

Moreover, in the said invention, it is preferable that the said attachment part attaches an objective lens so that attachment or detachment is possible via the said cap fastened by the attachment screw of the said objective lens.
By comprising in this way, in the state which attached the objective lens to the objective lens protector, it becomes possible to expose outer surfaces other than the attachment screw of an objective lens. The mounting screws are not contaminated because they are housed in the microscope body during microscopic observation, and the need for disinfection or sterilization is low. Therefore, by doing in this way, it becomes possible to disinfect or sterilize the entire outer surface other than the mounting screw of the objective lens.

Furthermore, in the said invention, it is good also as providing the 1st attaching part which attaches the said objective lens directly, and the 2nd attaching part which attaches the said objective lens through the said cap.
By configuring in this way, the objective lens attached to the microscope main body is directly attached to the first attachment portion, and the objective lens protector can be operated without touching it directly from the microscope main body by operating the objective lens protector. The opening can be sealed by removing and fastening the cap to the mounting screw. Next, the cap is grasped, the objective lens protector is removed from the objective lens, and the objective lens is attached to the second attachment portion of the objective lens protector via the cap. Thereby, it can attach to an objective lens protector in the state which exposed the outer surface of the objective lens other than the attachment screw hidden by the cap, and it becomes possible to disinfect or sterilize the whole outer surface of an objective lens easily.

  In addition, the present invention provides a step of attaching the objective lens protector according to any one of claims 4 to 6 to an objective lens attached to the microscope main body, and operating the objective lens protector to remove the objective lens from the microscope main body. , A step of fastening a cap to a mounting screw of the objective lens with a seal member interposed therebetween, and an assembly of the objective lens, the cap and the objective lens protector fixed to each other is immersed in a chemical solution to be disinfected or sterilized And an objective lens processing method.

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that the harmful substance adhering to an objective lens adheres to an operator's hand by operating an objective lens protector and removing an objective lens from a microscope main body. Then, by fastening the cap to the mounting screw, the outer surface of the objective lens can be easily sterilized or sterilized only by immersing the assembly in the chemical solution with the opening of the objective lens sealed.

In the above invention, before the step of disinfecting or sterilizing the assembly, a step of removing the objective lens fastened with the cap from the objective lens protector, and an assembly of attaching the objective lens protector to the cap fastened to the objective lens again. Preferably comprises the step of reconfiguring.
By doing so, the outer surface of the objective lens other than the mounting screw hidden by the cap can be exposed with the objective lens attached to the objective lens protector, and the entire outer surface of the objective lens can be easily disinfected or sterilized. can do.

The objective lens protector according to the present invention protects the objective lens from damage by preventing external force from being applied to the objective lens, and allows the objective lens to be operated without being touched directly by the hand. Lens deposits can be prevented from adhering to the hand and dirt after washing can be prevented from adhering to the objective lens.
According to the objective lens processing method of the present invention, there is an effect that the cap can be fastened to the objective lens removed from the microscope main body using the objective lens protector and the sterilization or sterilization process can be simply performed as it is.

The objective lens protector 1 according to the first embodiment of the present invention and the objective lens processing method using the same will be described below with reference to FIGS.
As shown in FIG. 2, the objective lens protector 1 according to the present embodiment has a small-diameter tip 2 at one end and an attachment screw 4 for attaching to the microscope body 3 (see FIG. 3) at the other end. It is a device for protecting the objective lens 5. The objective lens 5 is provided with a large diameter portion 6 having a large diameter adjacent to the mounting screw 4 in the longitudinal direction.

  As shown in FIG. 1, the objective lens protector 1 according to the present embodiment is configured by connecting a ring-shaped attachment portion 7 and a ring-shaped seat portion 8 by three columnar portions (protective members) 9. ing. The mounting portion 7 includes a central hole 10 that accommodates the large-diameter portion 6 of the objective lens 5, a step portion 11 that abuts the end surface 6 a on the distal end side of the large-diameter portion 6 of the objective lens 5, and a part in the circumferential direction. And a push screw (locking mechanism) 13 provided so as to be movable back and forth in the radial direction.

  As shown in FIG. 3, the distance between the mounting portion 7 and the seat portion 8 is such that the end surface 6a of the large-diameter portion 6 of the objective lens 5 is abutted against the step portion 11 and is narrow. The distal end portion 2 is set so as to be disposed inside the attachment portion 7 and the seat portion 8. When the objective lens 5 is attached to the attachment portion 7 in a state where the end surface 6a of the large diameter portion 6 is abutted against the step portion 11, the center of the objective lens 5 is disposed at a substantially central position of the objective lens protector 1. It is like that.

Further, the columnar portion 9 is disposed at a sufficient distance outward in the radial direction with respect to the objective lens 5 disposed at a substantially central position of the objective lens protector 1. Thereby, when the objective lens protector 1 is gripped by hand from the outside, it is set so that the hand does not touch the outer surface of the objective lens 5 arranged at the center position.
Further, between the columnar portions 9, there is provided a gap (penetrating portion) 14 sufficient to visually recognize or clean the state of the internal objective lens from the outside.

  As shown in FIG. 4, the notch 12 has a width that is wider than the diameter of the objective lens 5 in the middle of the longitudinal direction. Thereby, when the objective lens protector 1 is attached to or detached from the objective lens 5, it is not necessary to insert / remove the objective lens protector 1 in the optical axis direction from the small-diameter tip 2 side of the objective lens 5, as shown in FIG. As shown in the figure, the intermediate position in the longitudinal direction of the objective lens 5 can be passed through the notch 12 and can be inserted and removed in the radial direction.

  The push screw 13 is narrowed down with the end surface 6a of the large-diameter portion 6 abutted against the stepped portion 11 of the mounting portion 7, so that the outer peripheral surface of the large-diameter portion 6 is radially inward by the tip. The objective lens 5 and the objective lens protector 1 are fixed to each other so that the objective lens 5 and the objective lens protector 1 are not moved relative to each other in the circumferential direction and the axial direction due to friction between the two.

The operation of the objective lens protector 1 according to the present embodiment configured as described above will be described below.
In order to attach the objective lens 5 to the objective lens protector 1 according to this embodiment, first, in the state where the set screw 13 provided in the attachment portion 7 is sufficiently retracted radially outward, the central hole of the attachment portion 7 is provided. The objective lens 5 is inserted into 10, and the end surface 6 a of the large-diameter portion 6 of the objective lens 5 is abutted against the step portion 11 of the attachment portion 7. In this state, the objective lens 5 is positioned at a substantially central position of the three columnar portions 9, and unless the finger is intentionally inserted into the gap between the columnar portions 9, the objective lens 5 is manually applied to the outer surface of the objective lens 5 from the outside. It becomes difficult to touch with.

  Next, when the push screw 13 is operated and narrowed inward in the radial direction, the distal end of the push screw 13 causes the outer peripheral surface of the large-diameter portion 6 of the objective lens 5 accommodated in the central hole 10 to radially inward. Press toward. As a result, the objective lens 5 rotates in the circumferential direction in the objective lens protector 1 or falls off in the axial direction due to the frictional force generated between the tip of the push screw 13 and the outer peripheral surface of the large-diameter portion 6. Not to be fixed.

  As described above, according to the objective lens protector 1 according to the present embodiment, by fixing the objective lens 5, it is possible to prevent external force from being applied to the small-diameter tip portion 2 of the objective lens 5 and protect it from being damaged. can do. Therefore, by carrying, storing or assembling with the objective lens protector 1 attached, the objective lens 5 is protected from external force during conveyance, storage or assembling, and its soundness can be maintained.

  In addition, when the objective lens 5 is in a dirty state after use, it is possible to handle the objective lens 5 without directly touching the objective lens 5 by attaching the objective lens protector 1. Therefore, it is possible to prevent dirt on the objective lens 5 from adhering to the hand.

For example, when a microscope observation is performed with the objective lens 5 attached to the microscope main body 3 and a body fluid, protein, or the like of a specimen (not shown) adheres to the small-diameter tip 2 of the objective lens 5, it is shown in FIG. As described above, the objective lens protector 1 is attached to the objective lens 5 attached to the microscope body 3.
In this case, as shown in FIG. 4, the objective lens protector 1 is inserted in the radial direction with respect to the objective lens 5 by passing the midway position in the longitudinal direction of the objective lens 5 through the notch 12 of the mounting portion 7. be able to. Therefore, the objective lens protector 1 can be attached to the objective lens 5 even when a sufficient working space larger than the entire length of the objective lens protector 1 cannot be secured around the objective lens 5 attached to the microscope body 3.

Since the objective lens 5 is locked so as not to move relative to the objective lens protector 1 by the operation of the push screw 13, the operator rotates the objective lens protector 1 around the optical axis of the objective lens 5. Thus, the objective lens 5 can be easily detached from the microscope body 3.
At this time, since the operator operates the objective lens protector 1, it is not necessary to directly touch the surface of the objective lens 5 with the hand, and the occurrence of inconvenience that the dirt attached to the objective lens 5 adheres to the hand is prevented. it can. Further, since the objective lens protector 1 having a larger outer diameter than the large-diameter portion 6 of the objective lens 5 is rotated, less force is required for rotation, and the removal work can be easily performed.

  When the objective lens 5 is in a clean state before use, the objective lens 5 can be handled without touching the objective lens 5 directly by attaching the objective lens protector 1. Accordingly, it is possible to prevent hand dirt from adhering to the clean objective lens 5.

  For example, when the objective lens 5 is attached to the microscope body 3 in a state of being cleaned, disinfected or sterilized, the objective lens protector 1 is operated so that the objective lens 5 is not touched directly. Therefore, it is possible to prevent the outer surface of the objective lens 5 that has been sterilized from being soiled by hand dirt, and the next microscope observation can be performed in a clean state. Further, even when the objective lens 5 is attached to the microscope body 3, the work space around the objective lens 5 can be reduced.

Next, the objective lens processing method according to the present embodiment will be described with reference to FIGS.
In the objective lens processing method according to the present embodiment, first, the objective lens protector 1 is fixed to the objective lens 5 attached to the microscope main body 3 in the state in which the microscope observation is completed as described above, and the objective lens protector is thus obtained. The objective lens 5 is removed from the microscope body 3 by operating 1. Thus, as described above, it is not necessary to directly touch the objective lens 5 to which the specimen is attached.

  In this state, the mounting screw 4 for attaching the objective lens 5 to the microscope body 3 is exposed to the outside of the objective lens protector 1. In the present embodiment, as shown in FIG. 5, an opening (not shown) provided on the rear end side of the objective lens 5 is sealed by fastening a cap 15 to the mounting screw 4. The cap 15 is provided with a sealing member (not shown) such as an O-ring, for example, so that the space between the cap 15 and the objective lens 5 can be sealed in a liquid-tight state over the entire circumference. Yes.

Then, the assembly 16 of the objective lens 5, the objective lens protector 1 and the cap 15 whose opening is sealed with the cap 15 in this way is stored in a disinfecting tank in which a disinfecting solution or a sterilizing solution A is stored as shown in FIG. Alternatively, it is immersed in the sterilization tank 17.
As the disinfectant or sterilizer A, for example, alcohol-based ethanol, aldehyde-based glutaral, phthalal, peracetic acid, hydrogen peroxide, chlorine dioxide, or the like can be used.

  As a result, the exposed surface of the objective lens 5 is all easily and effectively disinfected or sterilized. In the present embodiment, the contact portion between the large diameter portion 6 and the attachment portion 7 is difficult to sterilize or sterilize, but is effective mainly for applications where only the small diameter tip portion 2 of the objective lens 5 is contaminated. . Further, the mounting screw 4 and the opening at the rear end which are hidden by the cap 15 are accommodated in the microscope main body 3 during the microscope observation, so that disinfection or sterilization treatment is unnecessary.

  In the present embodiment, since a sufficiently large gap 14 is formed between the columnar portions 9 arranged around the objective lens 5, the internal objective lens 5 can be visually recognized from the outside of the objective lens protector 1. Therefore, it can be easily confirmed from the outside whether or not the body fluid, blood or protein of the sample is attached to the small-diameter tip 2 of the objective lens 5, and in such a case, prior to disinfection or sterilization, Rough cleaning can be performed from the gaps 14 between the columnar portions 9 to remove the deposits. Thereby, disinfection or sterilization can be performed more effectively.

  Then, after the assembly 16 is taken out from the sterilization tank or sterilization tank 17 and dried, the cap 15 is removed to expose the mounting screw 4, and the objective lens protector 1 is operated to fasten the mounting screw 4 to the apparatus main body 3. Thus, the cleaned objective lens 5 can be attached to the apparatus main body 3. In this case, it is possible to prevent the hand from directly touching the surface of the cleaned objective lens 5 during the mounting operation, and to prevent dirt on the hand from adhering to the objective lens 5. Can be observed.

  In the objective lens protector 1 and the objective lens processing method according to the present embodiment, the large-diameter portion 6 provided in the objective lens 5 is attached to the attachment portion 7 of the objective lens protector 1. As shown in FIG. 7, an objective lens protector 1 ′ used during disinfection or sterilization may be prepared separately.

As shown in FIG. 7, the objective lens protector 1 ′ is configured to attach a cap 15 fastened to the attachment screw 4 of the objective lens 5 to the attachment portion 7, and its structure is the same as that of the objective lens protector 1. The lengths of the columnar portions 9 are different. Further, the size of the notch 12 needs to be set large.
By attaching the objective lens 5 to the attachment portion 7 with the cap 15 in this way, the entire surface of the objective lens 5 other than the cap 15 can be exposed. Therefore, the entire surface of the objective lens 5 can be efficiently disinfected or sterilized.

  In this case, the objective lens protector 1 'having the long columnar portion 9 can be used for the attachment / detachment operation and disinfection or sterilization of the objective lens 5 from the microscope body 3, but in this way, If dirt is attached to the large diameter portion 6 when the objective lens 5 is used, it is not preferable because dirt may be attached to the cap 15 via the mounting portion 7.

  In order to prevent the occurrence of this inconvenience and to share the objective lens protector 1 ″, as shown in FIG. 8, the first mounting portion 7A and the second mounting portion 7B are provided at both ends of the columnar portion 9. In this configuration, the large-diameter portion 6 is attached to the first attachment portion 7A, the objective lens 5 is detached from the microscope body 3, and the second attachment portion 7B. The entire surface of the objective lens 5 can be sterilized or sterilized by reassembling the objective lens 5 through the cap 15 and reconfiguring the assembly 16. In this case, the large diameter portion 6 is temporarily contaminated. Even if attached, the first mounting portion 7A that contacts the large-diameter portion 6 is exposed at the time of disinfection or sterilization, and therefore has the advantage that it can be processed simultaneously with the disinfection or sterilization of the objective lens 5. is there.

In addition, although the case where the outer diameter dimension of the cap 15 was made equal to the outer diameter dimension of the large diameter portion 6 was exemplified, the outer diameter dimensions of the both may be made different instead.
Further, the outer peripheral surface of the large-diameter portion 6 or the outer peripheral surface of the cap 15 is pressed in the radial direction by a pressing screw 13 provided in the mounting portions 7, 7A, 7B, and the objective lens 5 and the objective lens protector 1, are caused by the friction force. In addition to this, a plurality of recesses (not shown) are provided on the outer peripheral surface of the large-diameter portion 6 and / or cap 15 at intervals in the circumferential direction. The engaging effect between the objective lens 5 and the objective lens protectors 1, 1 ′, 1 ″ may be enhanced by engaging the tip of the screw 13 with the recess.

  In addition, as shown in FIG. 9, the objective lens protector 1 may be detachably attached to the objective lens 5 with one touch. In the example shown in FIG. 9, for example, as shown in FIG. 9B, a plurality of concave portions 18 are provided on the outer peripheral surface of the large-diameter portion 6 of the objective lens 5 at intervals in the circumferential direction. ), A movable ring 19 that surrounds the periphery of the large-diameter portion 6 is disposed in the central hole 10 of the mounting portion 7, and a protrusion 20 that protrudes radially inward is provided on the inner surface of the movable ring 19. 7 and the movable ring 19 are always urged radially inward by a spring 21 disposed between the ring 7 and the movable ring 19. A tapered surface 22 is provided at the tip of the protrusion 20, and the protrusion 20 is moved radially outward against the elastic force of the spring 21 on the opposite side of the movable ring 19 from the diameter direction protrusion 20. A pressing projection 23 is provided for the purpose.

  With this configuration, when the objective lens 5 is inserted into the central hole 10 of the mounting portion 7 in the axial direction, the large-diameter portion 6 presses the tapered surface 22 of the protrusion 20 to move the protrusion 20 outward in the radial direction. Let's evacuate. When the objective lens 5 is inserted into the central hole 10 until the projection 20 coincides with any one of the concave portions 18 of the large diameter portion 6, the large diameter portion 6 comes off from the tapered surface 22 and the spring 21 is elastically restored. The protrusion 20 is inserted into the concave portion 18 in the radial direction by force. Thereby, the objective lens 5 and the objective lens protector 1 are locked so as not to move relative to each other. In order to release the locked state, the pressing ring 23 is pressed inward in the radial direction to move the movable ring 19 so that the protrusion 20 is retracted outward in the radial direction. You can remove the match.

Moreover, in the said embodiment, although the case where the push screw 13 was provided in one place in the attaching part 7 was illustrated, you may provide in two or more places, without being limited to this.
In addition, although three columnar portions 9 are illustrated as a protective member that surrounds the outer side of the objective lens 5 in the radial direction, two or more arbitrary columnar portions 9 may be arranged instead. Moreover, the shape of the columnar part 9 is not limited at all. Further, instead of the columnar portion 9, as shown in FIG. 10, a protective member may be constituted by a tubular member 9 '. In this case, a plurality of through holes (not shown) may be provided in the tubular member 9 ′ in order to improve the visibility from the outside, the ease of cleaning, or the flowability of the disinfectant A or the like.
Further, as shown in FIG. 11, the protective member may be constituted by a curved rod-shaped member 9 ″.

It is a perspective view showing an objective lens protector concerning a 1st embodiment of the present invention. It is a side view which shows an example of the objective lens protected by the objective lens protector of FIG. It is the side view which fractured | ruptured a part which shows the state which attached the objective lens protector of FIG. 1 to the objective lens. It is a side view which shows the state which is passing the objective lens attached to the microscope main body to the notch part of the attaching part of an objective lens protector. It is the side view which fractured | ruptured a part which shows the assembly comprised by fastening a cap to the attachment screw of the objective lens attached to the objective lens protector of FIG. It is explanatory drawing which shows the disinfection step which immersed the assembly of FIG. 5 in the disinfection tank. It is the side view which fractured | ruptured a part which shows the objective lens protector which attaches an objective lens via the cap fastened to the attachment screw of the objective lens. It is the side view which fractured | ruptured a part which shows the modification of the objective lens protector which has an attachment part in the both ends of a columnar part. The 2nd modification of the objective lens protector of FIG. 1 is shown, (a) is a cross-sectional view of an attachment part, (b) is the side view which fractured | ruptured one part. It is a perspective view which shows the 3rd modification of the objective lens protector of FIG. It is a perspective view which shows the 4th modification of the objective lens protector of FIG.

Explanation of symbols

A disinfectant (chemical)
1, 1 ′, 1 ″ Objective lens protector 3 Microscope body 4 Mounting screw 5 Objective lens 7 Mounting portion 7A First mounting portion 7B Second mounting portion 9 Columnar portion (protective member)
9 'Tubular member (protective member)
9 "rod-shaped member (protective member)
12 Notch (Notch)
13 Push screw (locking mechanism)
14 Penetration part 15 Cap 16 Assembly

Claims (8)

An attachment portion that is formed in a substantially ring shape that covers the outer periphery of the objective lens, and that is detachably attached to the objective lens in a state in which the attachment screw to the microscope body of the objective lens is exposed,
A protective member fixed to the mounting portion, extending over substantially the entire length of the objective lens attached to the mounting portion, and surrounding the objective lens with a space radially outward of the objective lens;
An objective lens protector provided with a locking mechanism for locking the mounting portion and the objective lens so as not to move relative to each other in the circumferential direction.   The objective lens protector according to claim 1, wherein the attachment portion is provided with a notch that allows the objective lens to be inserted and removed in a radial direction.   The objective lens protector according to claim 1, wherein a penetrating portion penetrating in the radial direction is provided in the protection member. A cap fastened to a mounting screw of the objective lens;
The objective lens protector according to any one of claims 1 to 3, further comprising a sealing member that seals between the cap and the objective lens over the entire circumference.   The objective lens protector according to claim 4, wherein the attachment portion is detachably attached to the objective lens via the cap fastened to an attachment screw of the objective lens.   The objective lens protector of Claim 4 provided with the 1st attaching part which attaches the said objective lens directly, and the 2nd attaching part which attaches the said objective lens through the said cap. Attaching the objective lens protector according to any one of claims 1 to 3 to an objective lens attached to a microscope body;
Removing the objective lens from the microscope body by operating the objective lens protector;
Fastening a cap with a seal member that seals the entire circumference on the mounting screw of the objective lens;
An objective lens processing method comprising: immersing an assembly of an objective lens, a cap and an objective lens protector fixed to each other in a chemical solution to disinfect or sterilize. Prior to the step of disinfecting or sterilizing the assembly,
Removing the objective lens with the cap fastened from the objective lens protector;
The objective lens processing method according to claim 7, further comprising: reattaching the objective lens protector to the cap fastened to the objective lens to reconfigure the assembly.

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