JPH0736341Y2 - Illumination stand for microscope - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a microscope illumination stand, and more particularly to a microscope illumination stand having an improved heat dissipation structure.

[Prior Art] As a heat radiation method for the above-described lighting pedestal, there have been conventionally a natural convection method and a forced heat radiation method.

In the method using natural convection, an air inlet is provided on the bottom surface of the gantry housing and an air outlet is provided on the side surface or the top surface of the housing to let the heat of the light source escape to the outside of the housing using natural convection. As a method for forcibly radiating heat, a fan is attached to allow heat from the light source to escape to the outside.

[Problems to be solved by the invention] The reason why heat is required to be dissipated in an illumination pedestal is that the upper surface of the pedestal is touched by a hand when operating a sample, and therefore the temperature of the upper surface of the pedestal is lowered to such an extent that it is not hot even if the upper surface of the pedestal is touched all the time. What you need to do. In addition, since living biological material may be observed in some cases, it is necessary to lower the temperature of the sample surface so as not to exert a thermal adverse effect on the biological material.

Among the conventional techniques of natural convection, the method of providing the air outlet on the upper surface of the pedestal may spill liquid on the upper surface of the pedestal in the biological field, and it is dangerous if the high heat lamp or the electric system gets wet.

In addition, the one provided with the air outlet on the side surface of the gantry has less air flow due to natural convection than the one provided on the top surface.
The heat dissipation effect is poor. On the other hand, the one using a fan has a good heat dissipation effect, but the price is high, and there are also cases where vibration and sound generation due to the fan become a problem.

The present invention has been made in order to solve the above problems, and an object thereof is to provide an illumination mount for a microscope which has an excellent heat dissipation effect without using an air outlet on the top surface of the mount and using a fan. .

[Means and Actions for Solving the Problems] In order to achieve the above object, the microscope mount of the present invention is
A light source built in the housing, an air inlet provided on at least one of a lower side surface and a bottom surface of the housing, an air outlet provided on a side surface of the housing, and an upper illumination optical axis of the light source. And a heat radiation absorbing partition plate that holds the glass plate and that is thermally shielded from the housing and that is partially disposed near the air outlet. It is characterized by that.

Since this invention has the above-mentioned configuration and the heat ray absorbing glass plate is disposed on the upper illumination optical axis of the light source, the amount of heat ray reaching the document surface from the light source is reduced to suppress the temperature rise of the sample surface. You can

Most of the heat generated by the light source goes upward due to natural convection, but this heat is blocked by the partition plate during heat dissipation, and it is possible to prevent the temperature rise on the top surface of the gantry.

As a result, heat accumulates in the partition plate during heat dissipation. Further, a part of the heat of the heat ray absorbing glass plate also flows into the partition plate during heat radiation and accumulates in the partition plate. However, since the heat dissipation partition plate is attached to the housing of the pedestal in a heat insulating state, the housing does not become hot due to the heat transfer action.

On the other hand, natural convection occurs in which air enters from the air inlet of the housing and air exits from the air outlet. Since a part of the heat radiating partition plate is placed in the air flow, the heat accumulated in the partition plate is sufficiently radiated by natural convection.

In summary, it is possible to block the heat generated from the light source, concentrate the heat on the partition plate during heat dissipation, and dissipate the heat by natural convection flowing from the air inlet to the air outlet.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 is a housing of this illumination pedestal, and a light source 2 made of, for example, a halogen lamp is provided below the housing 1, and the periphery thereof is covered with a shield 3.

A heat ray absorbing glass plate 4 is arranged on the upper illumination optical axis of the light source 2. The glass plate 4 is held by a heat radiating partition plate 5 provided in a state of being thermally shielded from the housing 1.

That is, a plurality of supporting portions 6 are provided so as to hang down from the top of the housing 1, and the heat radiation partitioning plate 5 is fixed to the supporting portions 6 via a heat insulating material 7 made of, for example, synthetic resin. Reference numeral 8 is a screw for fixing the partition plate 5.

Further, a stage glass plate 9 is provided above the heat ray absorbing glass plate 4. Further, 10 is an air inlet provided on the lower side surface and the bottom surface of the housing 1, and 11 is an air outlet provided on the side surface of the housing 1.

In the figure, 12 indicates the sample surface 13 and the pedestal upper surface.

In addition, a part of the heat dissipation partition plate 5, for example, an end is an air outlet.
It is placed near 11 and is designed to radiate heat sufficiently by natural convection of air.

FIG. 2 shows a microscope using the illumination mount 20 of the present invention, in which 21 is a column, 22 is an arm, 23 is a mirror body, 24 is an objective lens, and 25 is an eyepiece lens.

In this lighting stand, most of the heat generated from the light source 2 goes upward due to natural convection. Of these, the heat of the light flux illuminating the sample surface 12 is absorbed by the heat ray absorbing glass plate 4 to prevent the temperature rise of the sample surface 12. The other heat is blocked by the partition plate 5 during heat dissipation and prevented from reaching the upper surface 13 of the gantry. As a result, heat is accumulated in the partition plate 5 during heat dissipation. Further, a part of the heat absorbed by the heat ray absorbing glass plate 4 flows to the partition plate 5 during heat dissipation to raise its temperature. However, since the heat-dissipating partition plate 5 is fixed to the housing 1 through the heat insulating material 7, the heat of the heat-dissipating partition plate 5 is not transferred to the housing 1 by heat conduction.

On the other hand, natural convection occurs in which air enters through the air inlet 10 provided in the housing 1 and exits through the air outlet 11. Since the end portion of the heat dissipation partition plate 5 is arranged in this flow, the heat accumulated in the heat dissipation partition plate 5 is dissipated by this natural convection.

Further, the light from the light source 2 is directly emitted from the air outlet by the shield 3.
Prevents leakage from 11.

Since effective heat dissipation can be performed as described above, the temperature rises of the gantry upper surface 13 and the sample surface 12 can be suppressed to a low level.

Further, since the pedestal upward 13 has no air outlet 11, it is safe because even if some liquid is spilled, it will not enter the inside.
Furthermore, since there is no direct light leakage from the air outlet 11, it does not interfere with the observation. In addition, since no fan is used, there is no increase in price and no vibration or pronunciation problems occur.

The present invention is not limited to the above embodiment, but can be variously modified within the scope of the invention.

For example, when the light from the light source 2 can be blocked by the partition plate 5 during heat radiation, the shield 3 may not be provided. Further, the present invention can be configured by providing the air inlet 11 on either the side surface or the bottom surface of the housing 1.

[Advantage of the Invention] According to the present invention, it is possible to provide an illumination stand for a microscope which has an excellent heat dissipation effect without using an air outlet on the top surface of the stand and using a fan.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing the configuration of an embodiment of the present invention,
FIG. 2 is a side view showing the overall structure of a microscope using the illumination mount of this invention. 1 ... Enclosure, 2 ... Light source, 3 ... Shield, 4 ... Heat ray absorbing glass plate, 5 ... Heat dissipation partition plate, 6 ... Support section, 7 ... Insulating material, 8 ... Screw, 9 ... Stage glass Plate, 10 …… Air inlet 11 …… Air outlet, 12 …… Sample surface 13 …… Stand top 20 …… Certification stand, 21 …… Support 22 …… Arm, 23 …… Mirror 24 …… Objective lens , 25 …… Eyepiece

Claims (1)

[Scope of utility model registration request] 1. A light source built into a housing, an air inlet provided on at least one of a lower side surface and a bottom surface of the housing, an air outlet provided on a side surface of the housing, and an upper portion of the light source. A heat ray absorbing glass plate arranged on the illumination optical axis,
An illumination pedestal for a microscope, which holds the glass plate and is provided with a heat-dissipating partition plate which is thermally shielded from the housing and a part of which is arranged near the air outlet. .