JP2576556B2 - microscope - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an optical microscope.

[Conventional technology]

A conventional device of this type has a structure as shown in FIG. 7 and FIG. 8 which is a sectional view taken along the line BB of FIG. FIG. 7,
In FIG. 8, a bulb 24, which is a heat source, includes a lamp house 21 and a lamp house lid together with a socket 25 and a socket fixing plate 26.
Built-in wrapped in 22 and base on lamp house
It was built into the 23. 27 is a condenser lens unit, 28 is a microscope stand, and 29 is a lamp house lid fixing knob.

Not shown, but light bulb directly base without lamp house 23
Some were built inside.

[Problems to be solved by the invention]

The conventional technique as described above has a drawback in that the left and right upper surfaces of the base on which the user of the microscope places his or her hands are heated by the heat from the electric bulb to give discomfort. In order to suppress the temperature rise to such an extent that discomfort is not given, it is necessary to reduce the capacity of the bulb or to enlarge the base so as to increase the heat capacity of the base. When the capacity of the light bulb is reduced, sufficient brightness for observation cannot be obtained, and when the base is increased, there is a drawback in that it obstructs the base on the desk and is inconvenient for transportation and carrying.

In addition, measures such as attaching a plate made of a material having a low thermal conductivity such as a synthetic resin on the upper surface of the base to reduce discomfort by touching a metal having a high temperature have been put to practical use, but the effect of reducing the upper surface temperature is not effective. There was a problem that it was enough.

[Means to solve the problem]

In order to solve the above problems, the microscope according to the present invention has a lamp house for storing an illumination light source, a base provided with a lamp house and supporting a microscope stand, and a synthetic resin provided on the base having a low thermal conductivity such as a synthetic resin. An arm rest member made of a material, wherein the arm rest member is plate-shaped and a part of the arm rest member is curved. The microscope is characterized in that a plate-shaped end is in contact with a base and is supported by the base so as to constitute a part.

[Action]

In the above configuration, the thermal conductivity of the arm placing member is small, and the end of the arm placing member is in contact with and supported by the base. Therefore, the contact area with the base is small, and the temperature of the arm placing member is reduced. The rise is small and a light bulb of bright capacity can be used. Further, since the arm rest member is supported by the base so as to form a part of the upper surface and side surfaces of the base, no matter how the arm is placed, there is no contact with the base, which makes the microscope user uncomfortable. Never give.

〔Example〕

FIG. 1 is a first embodiment of the present invention, and FIG.
It is AA arrow sectional drawing. The bulb 5, the socket 6, and the socket fixing plate 7 are incorporated so as to be wrapped in the lamp house 1 and the lamp house cover 2, and the lamp house cover 2 is fixed by a lamp house cover fixing knob 10. The condenser lens unit 8 is fixed to the lamp house 1 and serves to guide illumination light from the bulb 5 to a specimen (not shown). The base 3 includes a main body for accommodating the light bulb 5 and a support for an arm-rest member provided on the left and right sides of the main body so that the cross-sectional shape (FIG. 2) is U-shaped. Arm member 4 made of synthetic resin
Has been fixed. Reference numeral 9 denotes a microscope stand.

With such a structure, the heat generated by the bulb 5 is transmitted to the base 3 after heating the members built in the base 3,
The heat from the base 3 is further transmitted to the arm placing member 4. However, the arm placing member 4 is supported only in the vicinity of the end with the base 3 and has a small contact area.
The temperature rise of the arm placing member 4 is small.

FIG. 3 is a sectional view showing an arm rest according to a second embodiment of the present invention. The support 3a of the base 3 has an H-shaped cross section, on which an arm rest 4a is supported. FIG. 4 is a cross-sectional view showing the arm rest of the third embodiment. The support 3b is fixed to the main body by a reinforcing rib, and the arm rest 4b is supported thereon. FIG. 9 is a cross-sectional view showing the arm rest of the fourth embodiment, wherein the support 3c of the base 3 has a shape in which the upper surface of the inverted U-shape is recessed, and the arm rest 4c supported there. 6 is a cross-sectional view showing the arm rest of the embodiment of FIG. 5,
An inverted U-shaped arm rest member 4d is supported by a support portion 3d formed on the side surface of the main body.

In the embodiment of FIGS. 3 to 6, the arm placing members 4a, 4b,
In each of 4c and 4d, the vicinity of the end is only supported by the supporting portion of the base 3. Therefore, in the case of FIGS. 3 to 5, the contact area between the base 3 and the arm placing members 4a, 4b, 4c is small, and in the example of FIG. The cross-sectional area in the direction is small, and as a result, the temperature rise of the arm placing member 4d can be suppressed.

Further, although not shown in the figure, the stability of the microscope may be provided by a T-shaped base, and a resin arm member may be used separately from the base. In this case, when the arm placing member is formed in a rectangular parallelepiped shape, and an electric component for an illumination light source is housed therein and electrically connected to the microscope body by a cord and a connector, the functions can be separated. Assembly and adjustment are easy and convenient.

For example, if various colors are prepared as the arm placing members 4a in FIG. 3, the microscope can be identified by the colors. Needless to say, the arm placing member 4a can be arbitrarily attached to and detached from the support portion 3a.

〔The invention's effect〕

As described above, according to the present invention, since the contact area between the base and the arm placing member is small or the cross-sectional area of the arm placing portion in the heat conduction direction is small, the heat of the base is difficult to be transmitted to the arm placing member. Since the temperature rise of the members is small, a large-capacity light bulb with sufficient brightness can be used, and since the arm-resting member is supported by the base so as to form part of the top and side surfaces of the base, the arm Even if it is placed as above, there is an advantage that it does not touch the base and does not cause discomfort to the user of the microscope.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a microscope base according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. FIG. 4, FIG. 4 is a cross-sectional view showing the arm holder of the third embodiment, FIG. 5 is a cross-sectional view showing the arm holder of the fourth embodiment, and FIG. 6 shows the arm holder of the fifth embodiment. FIG. 7 is a cross-sectional view of a conventional microscope base, and FIG. 8 is a cross-sectional view taken along the line BB of FIG. [Description of Signs of Main Parts] 3... Base, 3a, 3b, 3c, 3d.
b, 4c, 4d ... arm placing member, 5 ... light bulb.

Claims (3)

(57) [Claims] 1. A lamp house for accommodating an illumination light source, a base provided with the lamp house and supporting a microscope stand, and an arm holder made of a material having a low thermal conductivity such as synthetic resin provided on the base. The arm placing member has a plate shape, a part of which is curved, and one part of the upper surface of the base and the other part of a side surface of the base with the curved part as a boundary. As
A microscope, wherein the plate-shaped end is in contact with the base and is supported by the base. 2. The apparatus according to claim 1, wherein said base has a main body for accommodating said lamp house, and support portions provided on both left and right sides of said main body for supporting said arm placing member. The microscope according to 1). 3. The microscope according to claim 2, wherein said support portion has a U-shaped cross section and supports said arm placing member at both ends of said U-shape.