JPS6017082B2 - fiber optic lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber illumination device, and more particularly to an optical fiber illumination device suitable for use in illuminating optical machines such as microscopes and magnifying glasses.

In recent years, optical fiber illumination devices have been used for illuminating optical machines such as microscopes and magnifiers, but in such illumination devices, multiple optical fibers protrude from the light source in an octopus-like shape completely separate from the optical machines. Not only is it unsightly, but it also obstructs machine operation.Furthermore, the optical fiber vibrates during machine operation, shifting the illumination point, changing the illuminance of the object to be observed, and making it impossible to perform accurate work. Situations like this also occurred.

Therefore, the present invention has an endless or band-shaped belt made of an elastic material, a large number of optical fibers are installed on the belt with their light-emitting surfaces exposed, and the belt is controlled by its own elasticity or engagement means. It is an object of the present invention to provide an optical fiber illumination device which is constructed so that it can be attached to a suitable material through a fiber optic device, thereby eliminating the above-mentioned drawbacks.

Hereinafter, the present invention will be specifically explained based on an embodiment shown in the drawings.

As shown in FIG. 1, the optical fiber illumination device 1 has a belt 2 made of an elastic material such as rubber, and the belt 2 is formed into an endless shape.

A large number of optical fibers 3 are embedded in the belt 2, and the light emitting surface 3a at the end of each optical fiber 3 is the end surface 2a of the belt 2.
exposed to. Each optical fiber 3 is connected to a suitable light source, and the outer periphery of the optical fiber 3 between the light source and the belt 2 is coated with paint 5 to prevent light leakage.
On the other hand, the optical machine 6 has a cylindrical lens barrel 6b having an objective lens 6a inside. Since the present invention has the above configuration, when working with an optical machine 6 such as a microscope, the belt 2 is attached to the lens barrel 6b of the optical machine 6 as shown in FIG. Use the elasticity of iron to attach. In this state, when the objective lens 6a of the machine 6 is directed toward the object to be observed and light is supplied from the light source to each optical fiber 3, the light is irradiated from the light emitting surface 3a onto the object to be observed. At this time, as described above, the belt 2 is elastically attached to the lens barrel 6b, so even if the lens barrel 6b and objective lens 6a move as a result of operating the machine 6, the optical fiber 3 Light emitting surface 3
a always follows the movement of the objective lens 6a, and
Not only can the symmetrical object to be observed in a be constantly irradiated, but also the elasticity of the belt 2 itself prevents the belt 2 from falling off or vibrating from the lens barrel 6b. Furthermore, since no heat is generated in the vicinity of the light emitting surface 3a at the tip of the optical fiber 3, the belt 2 and the lens barrel 6b are not adversely affected by the heat. Furthermore, if the amount of light is insufficient with only the optical fibers 3 of the belt 2, another belt may be attached on top of the belt 2 to increase the amount of irradiated light. In the above embodiment, the belt 2 is attached directly to the lens barrel 6b of the objective lens 6a, but as shown in FIG. The cylinder 7 is attached to a cylinder 7, and the cylinder 7 is provided so as to be movable in the directions of arrows A and B with respect to the lens barrel 6b, that is, in the axial direction of the lens barrel 6b, and the distance between the object to be observed and the light emitting surface 3a of the optical fiber 3 is set. Of course, it may be configured so that it can be adjusted freely.In this case, in order to fix the cylinder 7 to the lens barrel 6b, the cylinder 7
This is possible by tightening the stopper screw 9 screwed into the mirror 6b. Further, in the above embodiment, the belt 2 is formed in an endless shape, but as shown in FIG. Engagement tape 10,1
By providing 0', it is possible to attach the belt 2 to any place other than the lens barrel 6b of the optical machine 6. For example, as shown in FIG. It is also possible to form the tape 10 on a suitable member.
, 10', it is also possible to mount it in any shape.

As explained above, according to the present invention, a large number of optical fibers 3 are installed on the belt 2 made of an elastic material such as rubber so that the light emitting surface 3a thereof is keyed, and furthermore, the belt 2 is formed into an endless shape. , an objective lens 6a of an optical machine 6 such as a microscope, a magnifying glass, etc.
Since the optical fiber 3, which is a light source, can be attached directly to the lens barrel 6b, etc., the optical fiber 3 does not interfere with the operation of the machine 6, unlike in conventional lighting devices. In addition, since the light emitting surface 3a of the optical fiber 3 always follows the movement of the objective lens 6a, the optical fiber 3
It becomes possible to reliably illuminate the object to be observed with constant illuminance at all times without shifting the illumination point, and it becomes possible to provide a highly reliable optical fiber illumination device 1.

Furthermore, by forming the belt 2 into a belt shape and providing engagement tapes 10 and 10' as engagement and fixing means at both ends, the optical fiber 3 can be attached to any location, making it extremely versatile. It is possible to provide a device 1 that

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the optical fiber illumination device according to the present invention, FIG. 2 is a perspective view showing another embodiment of the optical fiber illumination device according to the present invention, and FIG. 3 is a perspective view showing an optical fiber illumination device according to the present invention. A perspective view showing one embodiment of the lighting device, FIG.
FIG. 2 is a perspective view showing an example of using the optical fiber illumination device shown in the figure. DESCRIPTION OF SYMBOLS 1... Optical fiber illumination device, 2... Belt, 3... Optical fiber, 3a... Light emitting surface, 6... Optical machine, 6a ...objective lens,
6b... Lens barrel, 10, 10'... Engagement fixing means (engagement tape). Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. An endless belt made of an elastic material, on which a large number of optical fibers are installed with their light emitting surfaces exposed,
An optical fiber illumination device characterized in that the belt is configured to be attached to a lens barrel of an objective lens of an optical machine. 2. A belt-shaped belt made of an elastic material is provided, and a large number of optical fibers are installed on the belt with their light-emitting surfaces exposed, and engaging and fixing means are provided at least at both ends of the belt, so that the belt-shaped belt can be attached to an optical fiber. An optical fiber illumination device characterized in that it is configured so that it can be attached to a lens barrel of an objective lens of a machine.