JPH079127Y2 - Real optical microscope - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is a test piece for subjecting various objects such as plants and animals, minerals, metals, fibers, and foods to a microscope. As described above, the present invention relates to an optical microscope capable of performing a microscope only by bringing a contact surface into contact with a necessary portion of an object without performing sampling and processing.

(Prior art) One of the mainstream technologies of conventional optical microscopes is to sample and process a sample piece from the object to be inspected when the microscope is used, place it on the microscope surface stand, and transmit the transmitted light from below the sample piece. It is to irradiate. According to this method, it is impossible to observe the object itself as it is, and it takes time to process the sample piece and the observation accuracy is poor.

In the other technique, in order to correct the above-mentioned defects and to mirror the metal surface, etc., light is introduced from the lens barrel portion above the contact lens, and various reflecting mirrors or reflecting surfaces are used to make an object to be examined. Although the method of irradiating with light has been adopted, the structure is extremely complicated and there is a problem in terms of use technology.

(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned drawbacks of the prior art. That is, the light is introduced from the upper direction of the subject using an optical fiber or the like without using the transmitted light from the lower direction of the subject, and the subject is irradiated with light without using any reflector or reflecting surface. In other words, by trying to bring the light into direct contact with the subject area and directly irradiating the light so that the amount of light is sufficient, and removing all the reflectors, the two major themes of the prior art will be solved. To do.

[Constitution of device]

(Means for Solving Problems) In order to achieve the object, the present invention comprises the following main techniques.

(1) The first term is that a conical cylindrical cap whose one end is narrowed into a conical shape is transparent so that the entire outer circumference of the cylindrical objective lens can be protected and surrounded. It is made of transparent glass or plastic. The cone-shaped lower end portion of the cone-shaped cylindrical cap is configured to substantially match the center of the objective surface so that light passes through the cone-shaped cylindrical cap.

(2) The second term is to cut the cylindrical end of the conical cylindrical cap that is not narrowed into a conical shape so as to be at a right angle to the lens barrel core line, and smooth the end face, This is used as the connection end face of the introduced light.

(3) In the third item, glass fiber, plastic fiber, etc. connected to the light source are arranged on the outer circumference of the lens barrel, and the end of the light outlet is opposed to the connection end face of the second item. , Even and even.

As described above, the introduction destination is configured to directly collect light at the object point without using a reflecting mirror. Also, C.
Install a CD camera so that image signals can be sent to televisions, printers, etc.

(4) The fourth item is that the conical tubular cap is formed of glass, the contact surface is also sealed with glass, and the outer circumference of the lens barrel is made of stainless steel. Establish chemical resistance within certain limits.

(5) When changing the magnification, it is necessary to change the distance between the contact point and the objective lens or replace the objective lens.
For this purpose, the function of the fiber for introducing light and the function of conducting light to the surface of the contacting object must be separated and must be detachable. Configure to meet the requirements.

(Effects) The effects of the present invention are as follows: (1) By attaching the power cord, the fiber cord and the power source, the microscope tube itself is brought into contact with the object without collecting the material of the object. Can carry out activities.

(2) Since there is no protrusion or the like around the microscope tube and the tube is cylindrical, it is possible to insert the lens tube into the narrow portion or the like and freely observe the microscope.

(3) Since the structure of introducing and collecting light is extremely simple,
There is little damage to each part and it shows excellent operability.

(4) Since the structure is simple, it is easy to realize a structure having waterproofness, chemical resistance, weather resistance and the like in a small size. Therefore, it is possible to perform observation in an environment that has not been considered in the past, such as by submerging the lens barrel in seawater or in chemicals and performing a microscope.

(5) The optical fiber for introducing the light from the light source and the conical tubular cap for carrying the light to the contact point are divided into separate parts,
And since it's detachable, it's extremely easy to adjust the magnification.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a view showing the lower portion of the microscope barrel, and is the lower portion of the microscope barrel. Is a glass fiber, which is introduced from the upper part of the lens barrel along the circumference of the lens barrel. Is a connecting end surface of the glass fiber and a conical tubular cap made of a transparent acrylic material, and both surfaces are smoothed and brought into close contact with each other. Is irradiation light, which passes through the conical cylindrical cap from the glass fiber and is irradiated to the contact point. The irradiation light hits the subject, becomes reflected light, and enters the objective lens. Is a cylindrical housing for mounting the objective lens,
Is a magnified light magnified by the objective lens, which is transmitted as a signal to a television receiver or the like through a CCD camera or the like, or is directly viewed through an eyepiece lens.

FIG. 2 is an embodiment showing a closed type lens barrel, and is a tightening tool for a shield, in which the lower part of the lens barrel and the conical tubular cap are fastened by a right screw and a left screw, respectively. Is a sealing ring. Also, in order to make it a closed type, the contact part must also be sealed. That is, it is a transparent plate for sealing and is an adhesive that also serves as a seal.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional cutaway view showing the lower part of the lens barrel of the microscope, and FIG. 2 is a partial cross-sectional cutaway view of the lower part of the lens barrel, showing the method for sealing the microscope lens barrel. is there.

Claims (1)

[Scope of utility model registration request] 1. In a real optical microscope having an objective lens attached to the lower end of the lens barrel, an optical fiber such as glass fiber or plastic fiber is drawn through the lens barrel to the lower end of the lens barrel, and is wired in a circumferential shape, and a wiring terminal is attached to the lens barrel. Of the optical fiber is arranged evenly so as to be substantially orthogonal to the core wire of the optical fiber, and the connecting end face of the optical fiber is formed, and it faces the entire lower circumference of the connecting end face and is continuous with the lower part of the lens barrel and also serves as a cover for the objective lens. Attach a conical cylindrical cap made of transparent plastic or glass, and open the conical part at the lower end of the conical cylindrical cap to make a contacting part, and introduce by optical fiber The actual optical microscope is characterized in that the emitted light passes through the inside of the conical tubular cap and is applied to the contact point.