JP2000206413A - Microscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microscope which is compact and whose number of parts is small, which is constituted so that a turret plate is not used and magnification is easily changed, hardly has a possibility that the adjusted state thereof breaks down, whose handleability is satisfactory and whose optical adjustment is facilitated and stabilized. SOLUTION: This microscope is constituted such that an eyepiece part 4 and an objective lens part 5 are supported by a support part 2 and a placing part 6 and an illumination part 8 are slidably supported by the support part 2. At the lens part 5, plural objective lenses, whose magnification are different, are slidably arranged side by side in a direction orthogonally crossing the support part 2. Also the objective lenses are housed in a downward housing and the placing part 6 is housed in an upward housing. Then, a hermetically sealed housing is formed of the downward housing and the upward housing by sliding the placing part 6.

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 in which an objective lens and a mounting portion are sealed and protected from dirt when the microscope is stored without being used for observation.

[0002]

2. Description of the Related Art In a conventional microscope section, a plurality of objective lenses having different magnifications are mounted on a rotating member called a turret plate or a revolver, and the magnification is converted by rotating the turret plate. In the mounting part, a slide holder was arranged on a fixed flat plate member called a stage, and a preparation or the like holding a specimen was supported and observed.

[0003]

The conventional microscope described above has a problem that it is bulky and has a large number of parts because a plurality of objective lenses are mounted on the turret plate.
In addition, rotating the turret plate to change the magnification is a difficult task, especially for children, and may cause the microscope whose arrangement has been adjusted to be moved or the specimen that should have been fixed to the mounting part to be moved. There was also.

When a plurality of objective lenses are arranged on a turret plate, there is a problem that optical adjustment of the objective lenses is difficult.

On the other hand, when the microscope is not used, the objective lens portion and the mounting portion are exposed, and dust and the like accumulate in this portion, and are directly affected by bad influences such as humidity. In order to avoid this, if an attempt was made to seal the objective lens portion or the mounting portion, a very large hermetic container was required, which was practically impossible.

On the other hand, the only consideration is to place the specimen on a flat surface of the mounting portion, and plankton or the like that has entered the liquid is placed in a petri dish, and the petri dish is observed in the mounting portion. However, the dishes were bulky and fragile and difficult to store.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional microscope, and has been made compact,
An object of the present invention is to provide an easy-to-use microscope that has a small number of parts, can easily change the magnification without using a turret plate, and has little risk of destroying the adjusted state.

Another object of the present invention is to provide a microscope which has a simple optical adjustment and is stable.

Further, according to the present invention, even when the microscope is not used, the objective lens portion and the mounting portion are not exposed, and dust and the like do not accumulate in this portion, and are not directly affected by humidity or the like. It is intended to provide a microscope.

A further object of the present invention is to provide a microscope which can easily mount and observe a specimen such as plankton, which has entered a liquid in a mounting portion, without using a petri dish or the like. .

[0011]

According to the present invention, there is provided a microscope having an eyepiece section and an objective lens section supported by a support section, and a load section and an illumination section slidably supported by the support section. In the objective lens unit, a plurality of objective lenses having different magnifications are slidably arranged side by side in a direction orthogonal to the support unit, the objective lens is accommodated in a downward housing, and the object unit is accommodated in an upward housing. The downwardly facing housing and the upwardly facing housing form a hermetically sealed housing by sliding the object portion described above.

[0012] An embodiment of the present invention is characterized in that the object portion has a concave portion in which a transparent member is arranged at a bottom portion. The above-mentioned thing part is characterized by being exchangeable.
The eyepiece is of a projection type. The eyepiece has two front and rear screens. The eyepiece is characterized in that an oblique reflecting mirror that rotates on the optical axis of the objective lens is arranged on the optical axis of the objective lens, and projects an object image on one of the screens.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A microscope according to an embodiment of the present invention will be described below with reference to the drawings. Microscope 1 of first embodiment
The eyepiece unit 4 and the objective lens unit 5 are supported by the substantially vertical support unit 2, and the mounting unit 6 and the illumination unit 8 are
Slidably supported by

As shown in FIG. 2, the support 2 has a focusing knob 10 disposed on a side thereof. By rotating the focusing knob 10, a rack 14 engaged with a pinion 12 integrated with the focusing knob 10 is provided. The loading section 6 and the illumination section 8 are raised and lowered. The support portion 2 is swingably attached to the base 20 by a pin 22 and can be adjusted to a vertical state or an inclined state.

The eyepiece 4 can be replaced with a projection type eyepiece shown in FIGS. 1 and 2 and an eyepiece type eyepiece (not shown). As shown in FIG. 2, the projection type eyepiece is arranged such that an oblique mirror 32 is rotatable around the optical axis O by an eyepiece switching knob 33 in the eyepiece housing 30 on the optical axis O of the objective lens 31 as shown in FIG. Have been. On the reflection optical axis O ′ of the oblique mirror 32, an observer screen 34 whose surface is rubbed with glass, and an assistant screen 36 are arranged.

As shown in FIGS. 3 and 4, the objective lens section 5 is composed of an objective lens housing 40 having a shape obtained by cutting off the lower half of an oval shape and components accommodated therein. As shown in FIG. 4, objective lenses 42, 44, and 46 having different focal lengths are supported and accommodated in a lens holder 48 that can slide in a direction perpendicular to the optical axis O. The lens holder 48 is mounted on the guide rail member 5 supported on the upper end of the support 2 by screws 50 and 52.
It is slidably supported by 4,56. The guide rail members 54 and 56 have rail projections 60 and click projections 68 and 70 formed integrally with the elastic arm 64. The click projections 68 and 70 engage with the click notches 74 and 76 of the lens holder 48 to
It acts to hold any one of 2, 44, and 46 on the optical axis O with a small locking force. The objective lens unit 5 is guided by guide rail members 54 and 56 as a whole, and slides in a direction perpendicular to the optical axis O to change the observation magnification.

The loading section 6 comprises a loading section housing 80 shaped like an upper half of an oval shape and components housed therein. The optical axis O
A concave portion 82 is formed at a position through which the flat glass passes, and a flat glass 84 is arranged on the bottom portion like a syrup. This recess 8
A sample, a liquid containing the sample, etc. are put in 2 and observed. Optical axis O
Below the upper flat glass 84, a condenser lens 9 is provided.
0 is arranged. A preparation holder 89 for supporting a preparation (not shown) is attached to the upper flat surface 81. By using such a mounting part 6, it is possible to observe the water, daphnia, plankton, brine shrimp and the like in the water while moving, and also to use small animals such as ants, mosquitoes, arimaki and small shrimp ( Can be observed as it is. Furthermore, plant diatoms, pollen, fern spores, seeds, mineral sand, iron sand, sugar, salt, and the like can also be efficiently and clearly observed.

The illuminating section 8 has a configuration capable of performing reflection illumination and light source lamp illumination. The illumination housing 100 emits an upward illumination light beam from the light source lamp (not shown) to the mounting portion 6 in the state shown in FIG. 2 and reflects ambient light in a state rotated about 180 degrees from FIG. The light is reflected by the mirror 102 toward the work 6. In the above-described configuration, after use as a microscope, the objective lens unit 5 is adjusted so that the objective lens 44 at the center is on the optical axis O, and the focusing knob 10
Is rotated to raise the mounting portion 6 and the illuminating portion 8 so that the objective lens housing 40 and the mounting portion housing 80 are integrated in an oval shape, and the objective lenses 42, 44, 46, the mounting portion 6, etc. Seal and protect.

The microscope of the second embodiment is of a replaceable type in which the specimen of the mounting portion 206 is inserted, that is, the concave portion 82 and the flat glass 84 of the first embodiment are integrally exchangeable. The mounting portion 206 of the microscope according to the second embodiment is the same as that shown in FIG.
As shown in FIG. 6, a drawer-shaped specimen holder 222 is removably arranged in a notch 220 extending from the opposite side of the flat part 210 from the support part 2. Specimen holder 2
A sample space 224 is formed at a position on the optical axis O when the sample space 22 is inserted into the notch 220, and flat glasses 226 and 228 are arranged on the upper and lower surfaces of the sample space 224 in a watertight manner. The flat glass 226 is desirably removable. The specimen space 224 accommodates a desired specimen. A plurality of specimen holders 222 are prepared to accommodate various specimens.

[0020]

According to the present invention having the above-described structure,
It is compact, has a small number of components, does not use a turret plate, can easily change the magnification, and has an effect that it is possible to configure a microscope that is easy to use and has little risk of destroying the adjusted state.

According to the present invention, it is possible to construct a microscope whose optical adjustment is simple and stable.

Further, according to the present invention, even when the microscope is not used, the objective lens portion and the mounting portion are not exposed, and dust and the like do not accumulate in this portion, and are directly affected by humidity and the like. No microscope can be constructed.

Further, according to the present invention, it is possible to construct a microscope which can easily mount and observe a specimen such as plankton, which has entered a liquid on the mounting portion, without using a petri dish or the like. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a microscope according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of the microscope according to the first embodiment of the present invention.

FIG. 3 is an exploded perspective view of an objective lens unit of the microscope according to the first embodiment of the present invention.

FIG. 4 is a vertical sectional view of an objective lens portion and a mounting portion of the microscope according to the first embodiment of the present invention.

FIG. 5 is an exploded perspective view of a mounting portion of the microscope according to the second embodiment of the present invention.

FIG. 6 is a vertical sectional view of a mounting portion of a microscope according to a second embodiment of the present invention.

[Explanation of symbols]

 O Optical axis 1 Microscope of the first embodiment 2 Support unit 4 Eyepiece unit 5 Objective lens unit 6 Placement unit 8 Illumination unit 10 Focusing knob 12 Pinion 14 Rack 20 Base 30 Eyepiece housing 31 Objective lens 32 Oblique mirror 33 Eyepiece switching knob 34 Screen for observer 36 Screen for assistant 40 Objective lens housing 42 Objective lens 48 Lens holder 80 Carrying part housing 82 Depressed part 90 Condenser lens 100 Lighting housing

Claims (6)

[Claims] 1. A microscope in which an eyepiece section and an objective lens section are supported by a support section, and a loading section and an illumination section are slidably supported by the support section, wherein the objective lens section has different magnifications. A plurality of objective lenses are slidably arranged side by side in a direction orthogonal to the support, the objective lens is housed in a downward housing, the object part is housed in an upward housing, and the downward housing and the upward housing are A microscope unit wherein a sealed housing is formed by sliding the object unit. 2. The microscope according to claim 1, wherein the object portion has a concave portion in which a transparent member is disposed on a bottom portion. 3. The microscope according to claim 1, wherein the object part is replaceable. 4. The microscope according to claim 1, wherein the eyepiece is of a projection type. 5. The microscope according to claim 1, wherein the eyepiece has two front and rear screens. 6. The eyepiece section, wherein an oblique reflecting mirror that rotates around the optical axis of the objective lens is arranged on the optical axis of the objective lens, and projects an object image onto one of the screens. The microscope according to claim 5, wherein