JP2003029165A - Microscope for observing surface of optical fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope for observing optical fiber surface which is capable of efficiently, easily and surely observing the surface of the optical fiber in the longitudinal direction. SOLUTION: This microscope for observing the optical fiber surface includes a slide glass which arranges the optical fiber, a preparation to be placed on the optical fiber and an objective lens and an eyepiece for observing the surface of the optical fiber. Both ends of the slide glass are provided with optical fiber holding sections for holding the optical fiber and the central part of the slide glass is provided with a preparation fixing section for fixing the preparation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microscope, and more particularly to a microscope for observing an optical fiber surface in the longitudinal direction.

[0002]

2. Description of the Related Art Optical fibers play an important role as backbone transmission lines (long-distance large-capacity transmission lines) and subscriber transmission lines (short-distance small-capacity transmission lines) in the field of optical communication. One of the essential characteristics required for optical fibers is long-term reliability, that is, mechanical characteristics and transmission characteristics are not deteriorated over several decades.

Observation of an optical fiber with an optical microscope is important in examining such long-term reliability. In addition to observing the cutting state and breaking state of the optical fiber cross section, it is required to observe the surface of the optical fiber in the longitudinal direction.

Conventionally, a general optical microscope has been used as it is for observing the surface of an optical fiber in the longitudinal direction. That is, the object to be observed (optical fiber) is placed on a slide glass, then the slide is placed on the object to be observed, and a part of the object to be observed is magnified and observed using the objective lens and the eyepiece lens. is there.

In order to observe the surface of the optical fiber in the longitudinal direction, first, one optical fiber is placed on a slide glass and temporarily fixed with a tape or the like. Alternatively, hold it by hand without any temporary fixing. Then, the slide is placed on the optical fiber, the microscope is focused, and the place is observed. Then, when the observation of the place is finished, one end of the optical fiber is pulled and moved by hand to move the observation place in the longitudinal direction.

[0006]

The conventional microscope for observing the surface of the optical fiber in the longitudinal direction has the following problems.

The optical fiber arranged on the slide glass is temporarily fixed with tape or the like, or is not temporarily fixed at all. Therefore, when one end of the optical fiber is pulled by hand and moved, the slide is displaced, The fiber deviated from the slide glass and had to be reset each time.
As a result, there is a problem that work efficiency is very poor.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to observe the surface of an optical fiber in the longitudinal direction efficiently, simply, and surely. It is to provide a microscope for observing a fiber surface.

[0009]

In order to achieve the above object, a microscope for observing an optical fiber surface according to the present invention has a glass slide on which an optical fiber is arranged, a slide placed on the optical fiber, and a surface of the optical fiber. In the microscope for observing an optical fiber surface, which comprises an objective lens and an eyepiece lens for observing, the slide glass is provided with an optical fiber holding portion for holding the optical fiber at both ends thereof, and the central portion thereof is provided with the optical fiber holding portion. A slide fixing part for fixing the slide was provided.

The optical fiber holding portion has a brush inside.

Further, the optical fiber holding portion may be provided with a taper portion whose diameter decreases toward the center.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a first embodiment of an optical fiber surface observing microscope according to the present invention.
Is a plan view, (b) is a side view, and (c) is a front view. 1
Is a slide glass, 2 is a slide, 3 is an optical fiber holding portion, 4 is a slide fixing portion, and 5 is a brush.

The optical fiber surface observing microscope of the present invention is characterized by a slide glass on which an object to be observed (optical fiber) is placed, and an optical system for magnifying and observing the object to be observed is an objective lens and an eyepiece lens. It is the same as the conventional one used.

The slide glass 1 is provided with one optical fiber holding portion 3 at each end. Then, the optical fiber holding portion 3 has a hole with a constant diameter,
A brush 5 is provided inside.

A slide fixing portion 4 is provided in the central portion of the slide glass 1, that is, in the observation area of the microscope, so that the slide 2 to be placed on the object to be observed does not move easily.

In order to observe the surface of the optical fiber in the longitudinal direction, one end of the optical fiber is passed through the optical fiber holding portion 3 at one end of the slide glass 1 from the outside, and the other end is passed through the center portion of the slide glass 1. It goes out through the optical fiber holding part 3 at the end. In this way the optical fiber is placed in the center,
The preparation 4 is placed on the optical fiber, the microscope is focused, and observation is started.

When the observation of the place is finished, one end of the optical fiber is pulled and moved by hand to move the observation place in the longitudinal direction. The optical fiber includes two optical fiber holding portions 3
Since the optical fiber moves while being guided by, the optical fiber does not deviate from the slide glass 1. Moreover, since the preparation slide 2 placed on the optical fiber has its four corners firmly fixed by the preparation fixing portion 4, it does not shift.

Further, since the brush 5 is provided inside the optical fiber holding portion 3, dust and the like adhering to the optical fiber can be removed at the optical fiber holding portion 3, and the surface of the optical fiber can be removed. When observing, it is not necessary to temporarily stop the observation due to the influence of dust or the like and remove the dust. The brush 5 may be made of any material as long as it is softer than the material of the optical fiber, because the surface of the optical fiber is not damaged.

Therefore, it is efficient, easy, and reliable to observe the surface of the optical fiber in the longitudinal direction with the microscope for observing the surface of the optical fiber using the slide glass as shown in FIG. Became possible.

FIG. 2 shows a second embodiment of the optical fiber surface observing microscope according to the present invention.
Is a plan view, (b) is a side view, and (c) is a front view. 1
Reference numeral 1 is a slide glass, 12 is a slide, 13 is an optical fiber holding portion, 14 is a slide fixing portion, 15 is a brush, and 16 is a taper portion.

The slide glass 11 is provided with three optical fiber holding portions 13 arranged at both ends thereof side by side.
Inside the optical fiber holding portion 13, tapered portions 16 having a diameter that decreases toward the center are provided from both sides. A hole having a constant diameter is provided in the central portion of the optical fiber holding portion 13, and the brush 15 is provided at the portion where the diameter is constant.
Is provided.

In the central portion of the slide glass 11, that is, in the observation area of the microscope, the slide 1 to be placed on the object to be observed is prepared.
A slide fixing portion 14 is provided so that the 2 does not move easily.

To observe the surface of the optical fiber in the longitudinal direction, one end of the optical fiber is passed through one of the three optical fiber holding portions 13 at one end of the slide glass 11 from the outside, and the slide glass 11 is moved. Of the three optical fiber holding portions 13 at the other end of the slide glass 11 through the central portion of the put out. The optical fiber holding portion 13 has a taper portion 16 from both ends.
Since the optical fiber is provided, the optical fiber is structured so that it can be easily inserted and taken out.

In this way, the optical fiber slide glass 11
Then, the preparation 14 is placed on the optical fiber, and the microscope is focused to start the observation. When the observation of the place is finished, one end of the optical fiber is pulled and moved to move the observation place in the longitudinal direction.

The optical fiber comprises two optical fiber holders 1.
Since the optical fiber moves while being guided by 3, the optical fiber does not deviate from the slide glass 11. Moreover, the slide 12 mounted on the optical fiber is firmly fixed at the four corners by the slide fixing portion 14, so that the slide 12 does not shift.

Further, since the brush 15 is provided at the center of the optical fiber holding portion 13, dust and the like adhering to the optical fiber can be removed at the optical fiber holding portion 13, and the optical fiber surface can be removed. When observing, it is not necessary to temporarily stop the observation due to the influence of dust or the like and remove the dust. The brush 15 may be made of any material as long as it is softer than the material of the optical fiber, since the surface of the optical fiber is not scratched.

In the second embodiment, since three optical fiber holding portions 13 are provided at both ends of the slide glass 11,
It was possible to observe three optical fibers at the same time, and it was possible to greatly improve work efficiency. The number of the optical fiber holding portions 13 is not limited to three and can be appropriately determined.

Therefore, it is efficient, easy, and reliable to observe the surface of the optical fiber in the longitudinal direction with the microscope for observing the surface of the optical fiber using the slide glass as shown in FIG. Became possible.

[0030]

According to the optical fiber surface observing microscope of the present invention, the slide glass on which the optical fiber is arranged, the slide placed on the optical fiber, the objective lens and the eyepiece for observing the surface of the optical fiber are provided. In the optical fiber surface observing microscope, the slide glass is provided with optical fiber holding portions for holding the optical fiber at both ends thereof, and a slide fixing portion for fixing the slide is provided at a central portion of the slide glass. Therefore, it becomes possible to observe the surface of the optical fiber in the longitudinal direction efficiently, easily, and surely. This has made it possible to significantly reduce the observation time.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a microscope for observing an optical fiber surface according to the present invention, in which (a) is a plan view,
(B) is a side view and (c) is a front view.

FIG. 2 shows a second embodiment of the optical fiber surface observing microscope of the present invention, in which (a) is a plan view,
(B) is a side view and (c) is a front view.

[Explanation of symbols] 1 slide glass 2 preparations 3 Optical fiber holder 4 Preparation slide fixed part 5 brushes 11 slide glasses 12 Preparation 13 Optical fiber holder 14 Preparation slide fixing part 15 brushes 16 Tapered part

Claims (3)

[Claims] 1. A slide glass for arranging an optical fiber,
In an optical fiber surface observing microscope comprising a slide to be mounted on the optical fiber, an objective lens for observing the surface of the optical fiber, and an eyepiece lens, the slide glass holds the optical fiber at both ends thereof. An optical fiber surface observing microscope, characterized in that an optical fiber holding portion is provided and a preparation fixing portion for fixing the preparation is provided at a central portion thereof. 2. The microscope for observing the surface of an optical fiber according to claim 1, wherein the optical fiber holding portion is provided with a brush inside. 3. The optical fiber surface observing microscope according to claim 1, wherein the optical fiber holding portion is provided with a tapered portion whose diameter decreases toward the center.