JPH055527Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magnification display of a microscope. Conventionally,
As a magnification display for this type of microscope, the microscope magnification display shown in FIG. 1 is known. In FIG. 1, a dovetail groove 3 is formed in the longitudinal direction of a column 2 that is vertically supported at the rear of a leg 1. A dovetail 6 is fixed to a support 5 that supports the mirror body 4 of the microscope, and the dovetail 6 is slidably fitted into the dovetail groove 3. A rack (not shown) is attached to the dovetail 6, and meshes with a pinion shaft (not shown) on which a handle 7 for moving the support 5 up and down is attached. An objective lens 8 is removably attached to the lower end of the mirror body 4, and an eyepiece 10 is detachably attached to the upper end of the mirror body 4 via a mirror head 9 containing a prism for adjusting the eyelid. installed on.

A variable power handle 11 is rotatably attached to the side surface of the mirror body 4.
By rotating the intermediate imaging lens built into the mirror body 4, the observation magnification can be changed. A magnification display 12 is engraved at a distance on the outer periphery of the side surface of the variable magnification handle 11,
By looking at the magnification display 12 located at the position of the index 13 provided on the side surface of the mirror body 4, the observation magnification can be known.

However, the magnification display of the conventional microscope described above has the following drawbacks. In other words, the number shown on the magnification display only indicates the magnification when using a specific objective lens and a specific eyepiece; if other objectives and eyepieces are used, the number will not reflect the actual observation. Since the magnification is not indicated, the speculum operator has the trouble of not being able to know the actual observation magnification unless he or she looks at a table of combined magnifications for objective lenses and eyepieces prepared separately.

Furthermore, the specification of Japanese Utility Model Application No. 180940/1983 discloses a display device that displays the observation magnification according to the objective lens and eyepiece being used without looking at the magnification table. This has an outer cylinder with a window at a different position for each objective lens, and an inner cylinder with a ribbon affixed with various magnifications printed on it, and when the magnification changes with a variable magnification mechanism, it corresponds to the objective lens being used. The magnification display of the inner cylinder can be seen through the window of the outer cylinder, and the magnification display corresponding to the eyepiece can be masked with several types of display visible from the window, allowing observation according to the objective lens and eyepiece being used. It displays only the magnification.

However, with this conventional magnification display device, although it is possible to immediately know the actual observation magnification, it requires a large space because all magnifications are printed on the inner cylinder.
The problem is that the overall size of the device increases. Furthermore, since there are many types of objective lenses and eyepieces that are commonly used, there are many types of magnification, so the displayed magnification is small and extremely difficult to see.

The purpose of the present invention was made in view of the above-mentioned drawbacks, and is to enable the observer to always know the actual observation magnification by easily changing the magnification display of the microscope, and to is compact and provides an easy-to-read microscope magnification display.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 2, the variable power handle 15 is fixed to a shaft 16 protruding from the side surface of the mirror body 4 with a set screw 17. A recess 18 is provided on the side surface of the handle 15, and a magnification display disk 19 is provided.
are exchangeably mated. On the disk 19, the actual total observation magnification obtained by the combination of the objective lens and the eyepiece is displayed as shown in FIG. 1, corresponding to the conversion of the intermediate imaging lens.
Further, a notch 20 is provided at the periphery of the disc 19 to facilitate attachment and detachment to the variable power handle 15.

The number of magnification display discs 19 is prepared for each type of combination of objective lens and eyepiece lens used, so the observer can use the magnification display disc 19 for the combination of objective lens and eyepiece lens to be used. 19 and fitting it into the recess 18 of the variable power handle 15, the actual observation magnification can be determined.

In the above description, the magnification display disc is fitted into the recess of the variable power handle, but the magnification display disc may be attached to the variable power handle.

Next, a second embodiment will be described with reference to FIG.

Description of the same members as in FIG. 2 will be omitted.
The variable power handle 21 has a groove 21a of medium height on its circumference. A magnification display cap 22 is mounted on the handle 21, and the cap 22 includes:
A bent engagement portion 22a is formed to prevent displacement in the circumferential direction and fall off from the handle, and is engaged with the groove 21a. On the side of the cap 22, the actual total observation magnification is displayed at a position as shown in FIG.

As explained above, according to the present invention, by providing an exchangeable magnification display section that displays the actual overall observation magnification based on the combination of the objective lens and eyepiece used, the observer can It has the advantage that the total observation magnification at that time can be directly known, and the display device is compact and the display itself is very easy to read.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of a main part showing an embodiment of the invention, and FIG. 3 is a sectional view of a main part of a second embodiment of the invention. 11, 15, 21...Magnification handle, 12, 2
8...Magnification display, 19...Magnification display disc, 22...
...Magnification display cap.

Claims (1)

[Scope of utility model registration request] A microscope that has an objective lens, a variable magnification section, and an eyepiece lens, and the objective lens and the eyepiece lens are configured to be interchangeable. A magnification display for a microscope, characterized in that a member for displaying an actual overall observation magnification is replaceably provided in a positioning engagement groove.