JP3122385U - Small microscope - Google Patents

Abstract

[PROBLEMS] To reduce the size and weight of a simple structure and easily carry it. It is excellent in portability and space saving, and it is robust because the components such as the light source and lens are protected by a housing. Because there is no need for complicated work, children can easily observe various things, and observation workability and handling that allows observation under almost constant conditions regardless of location and weather Providing a compact microscope with excellent durability.
A hollow housing having a battery housing portion, a light source portion disposed inside the housing, a passage hole through which light emitted from the light source portion passes, and spaced apart from the light source portion, A sample placement portion formed on the upper end side, a cap portion detachably covered on the upper end portion of the housing, and a lens disposed on the cap portion and facing the light source portion.
[Selection] Figure 1

Description

  The present invention relates to a compact microscope that is easy to observe and operate, is compact, and has excellent portability.

Conventional microscope illumination devices include those that reflect light from an external light source such as sunlight with a mirror, and those that irradiate other illumination light from the periphery, such as stereo microscopes. A sample such as a lamp, a xenon lamp, or a mercury lamp is used as a light source to irradiate the sample to be observed through an optical system. In addition, instead of using lamps such as halogen lamps and mercury lamps, the use of LEDs (light-emitting diodes), which are semiconductor light-emitting elements, as light sources for microscopes has been studied. In order to illuminate the light without unevenness, it has also been proposed to use a surface-emitting illumination device such as a surface-emitting LED.
In order to provide a compact illuminated microscope that is easy to carry, (Patent Document 1) states that “a substantially flat main body incorporating a plurality of reflectors arranged so that most of the optical path is bent. And a microscope characterized in that the light path is bent in a single plane parallel to the flat outer surface of the body of the instrument arranged to form an observation table. " ing.
JP-A-5-119261

However, the above conventional techniques have the following problems.
(1) Although the microscope of (Patent Document 1) is miniaturized as compared with a conventional microscope, since a plurality of reflectors are incorporated, the optical system is complicated, mass-productivity is lacking, and portability is low. It had the problem of being insufficient.
(2) The illumination source also includes an observation table between a first position where illumination is provided to an object observed by transmitted light and a second position where illumination is provided to an object observed by reflected light. An arm on which the illumination source is pivotally connected to the body of the microscope for pivoting between the first and second positions. In order to perform observation with transmitted light, the arm is moved to the first position so that the object to be observed can be placed between the illumination source and the main body, and from the main body of the microscope. It had to be protruded outward and had the problem of lack of handleability.
(3) Since the arm to which the illumination source is attached is pivotably connected to the main body of the microscope, the number of parts increases, the mechanism becomes complicated, and the arm is easily damaged during repeated use. There was a problem of lack of reliability.
(4) Furthermore, since the main body of the instrument is formed in a disc shape so as to form an observation stand, and an eyepiece is disposed on the side thereof, observation is difficult and workability and handling are lacking. It had the problem that.

  The present invention solves the above-described conventional problems, and can be easily carried by reducing the size and weight with a simple structure. It is excellent in portability and space saving, and is composed of components such as a light source and a lens. Because it is protected by a housing, it is robust and does not require complicated work, so even children can easily observe various things and observe under almost constant conditions regardless of location and weather The objective is to provide a compact microscope with excellent observation workability, handleability and durability.

In order to solve the above-described problems, the small microscope of the present invention has the following configuration.
The small microscope according to claim 1 of the present invention includes a hollow housing having a battery housing portion, a light source portion disposed inside the housing, and a passage hole through which light emitted from the light source portion passes. A sample placement portion formed on the upper end side of the housing apart from the light source portion, a cap portion detachably covered on the upper end portion of the housing, and disposed on the cap portion. And a lens facing the light source unit.
This configuration has the following effects.
(1) Since the light source unit is disposed inside the hollow housing having the battery housing unit, the light source unit can be driven by the battery, and the housing can be reduced in size and weight. The light source part can be protected by a housing, and the handling reliability is excellent.
(2) The sample mounting portion formed on the upper end side of the housing apart from the light source portion has a passage hole through which light emitted from the light source portion passes, and is detachably covered on the upper end portion of the housing. Since the lens facing the light source unit is disposed on the cap unit, the light source unit to the lens can be arranged in a straight line, the shape of the housing can be simplified, and the light source unit and the sample mounting unit No optical system is required between them, the structure can be simplified and the number of parts can be reduced, the size and weight can be reduced, and the mass productivity is excellent.
(3) Since the sample placement portion is formed on the upper end side of the housing and the cap portion is detachably covered on the upper end portion of the housing, observation is performed with the sample contained in the housing. In addition, the sample can be prevented from being lost due to dropping or the like and excellent in reliability, and the sample can be easily exchanged by attaching and detaching the cap portion, and the observation workability is excellent.
(4) By attaching the cap portion on which the lens is disposed to the housing, the distance from the sample placement portion to the lens can be kept substantially constant, and the distance from the sample placement portion can be determined in advance according to the focal length of the lens. Since the distance to the lens is set, troublesome operations such as focusing are not required at the time of observation, and even a small child can be easily used, and the observation workability is excellent.
(5) Since the light source unit is housed inside the housing, it is not affected by the location or weather, and the light from the light source is reliably applied to the sample at any time in the rain, at night, or in a dark place. Can be observed by irradiating and is excellent in versatility.

Here, a synthetic resin such as polyethylene, polypropylene, polystyrene, ABS resin, and AS resin, which is lightweight and excellent in moldability, is preferably used as the material of the housing and the cap portion.
The housing can be formed in a hollow cylindrical shape, a prismatic shape, or the like depending on the shape of the battery that is the driving source of the light source unit. By using a small battery such as a button battery or a single 5 type battery, the case can be miniaturized to the extent that it can be easily carried in a pocket, and is excellent in portability.
The housing can be formed in half, and after the light source portion and other components are accommodated therein, it can be assembled by means such as fitting, screwing, and adhesion. In particular, a cylindrical housing is easy to mold and excellent in durability, and has no bulge on the outer periphery, hardly breaks, and is excellent in portability and handling.
Any light source may be used as long as it can irradiate the sample with light, but a light emitting diode, an organic EL element, or the like is preferably used.

The casing and the cap portion only need to be detachably fixed, and a means for engaging and fitting the convex portion and the concave portion formed on each other, a means for screwing with a male screw and a female screw, and the like are preferable. Used.
As the lens, a thin flat plate-like bright Fresnel lens with little spherical aberration, a high magnification spherical lens, or the like is preferably used. As a material, synthetic resins such as glass, methacrylic resin, polycarbonate, and high density polyethylene are preferably used.
When the lens mounting position is recessed toward the housing from the cap surface, the lens surface can be prevented from being soiled, scratched, damaged, and the like, and is easy to handle.
When performing observation, place a transparent sample plate made of a transparent plastic plate or the like on the sample mounting part, place the sample on it, and then attach the cap part to the sample. Can be housed inside.
When the lens is a spherical lens, observation can be performed even by rubbing the sample directly on the surface of the lens from the outside, and the attaching / detaching action of the cap portion can be eliminated.

The invention described in claim 2 is the small microscope according to claim 1, wherein the light source of the light source unit is a light emitting diode.
With this configuration, in addition to the operation of the first aspect, the following operation is provided.
(1) Since the light source of the light source section is a light emitting diode, the light source section has excellent long life, low power consumption and energy saving, the light source section can be easily downsized and thinned, and the design of the housing is free. High degree of design flexibility.
Here, the light emitting diode is preferably one that emits white light that is optimal for observation, but may be one that emits white light alone, or white light is emitted in full color (a combination of R, G, and B). It may be a thing. Further, a surface emission type capable of uniform light emission with less uneven emission is preferable, but a point emission type may be used as long as a sufficient amount of light can be obtained.

Invention of Claim 3 is a small microscope of Claim 1 or 2, Comprising: The said sample mounting part has the structure provided with the sample stand positioning part which positions a sample stand.
With this configuration, in addition to the operation of the first or second aspect, the following operation is provided.
(1) Since the sample mounting portion has a sample table positioning unit for positioning the sample table, the sample table can be positioned and held in the housing, and the sample table can be prevented from being displaced, and the sample table can be easily used. Various observations can be performed by exchanging them with each other and the observation workability is excellent.

Here, the sample stage positioning portion may be any one that can contact the end surface of the sample stage and prevent the sample stage from being displaced. The protrusions may be formed so as to surround the entire circumference of the sample table in accordance with the outer shape of the sample table, but a plurality of independent protrusions may be provided. If the four protrusions are in contact with the front, rear, left, and right end surfaces of the sample stage, it is possible to reliably prevent the sample stage from being displaced, and the sample stage can be easily replaced and has excellent handleability. In addition, when the sample stage positioning part is formed with an inverted L-shaped locking claw or a substantially U-shaped locking groove, the sample stage can be securely held on the upper surface of the sample mounting part to prevent dropping. Excellent in properties.
When attaching / detaching the sample table to / from the sample table positioning part, it is done after removing the cap part, but if an opening for inserting the sample table is formed on the side part of the housing, the cap part should be removed. In addition, the sample stage can be slid from the outside of the housing to perform the attaching / detaching work, and the workability is excellent.
The sample stage is not particularly limited as long as it can transmit the light of the light source, but a flat plate made of a synthetic resin which is not easily cracked or chipped and has excellent durability is preferably used.

The invention described in claim 4 is the small microscope according to any one of claims 1 to 3, wherein the cap portion is in contact with an upper surface of a sample stage placed on the sample placement portion. It has the structure provided with the sample stand fixing | fixed part which touches and fixes a sample stand.
With this configuration, in addition to the operation of any one of claims 1 to 3, the following operation is provided.
(1) Since the cap unit has a sample table fixing unit that fixes the sample table by contacting the upper surface of the sample table mounted on the sample mounting unit, after the sample table is mounted on the sample mounting unit, the housing The sample stage can be simply and reliably fixed simply by attaching the cap part to the body, and the handleability is excellent.

  Here, the sample stage fixing part may be any one that protrudes from the bottom of the cap part and abuts on the upper surface of the sample stage without blocking the passage hole of the sample mounting part. For example, what formed in the protruding item | line so that the outer periphery of a passage hole may be followed in the bottom part of a cap part is used suitably. The sample base fixing part may be integrally formed of the same material as the cap part. However, if an elastic body such as synthetic rubber is provided at the bottom of the cap part, the sample base fixing part is used as the sample base. In addition to being able to be securely attached and fixed, the sample stage can be prevented from being damaged and excellent in reliability.

The invention described in claim 5 is the small microscope according to any one of claims 1 to 4, wherein the sample mounting portion includes a seal member disposed on an outer periphery of the passage hole. It has a configuration.
With this configuration, in addition to the operation of any one of claims 1 to 4, the following operation is provided.
(1) Since the sample mounting portion has a sealing member disposed on the outer periphery of the passage hole, the sample enters the inside of the housing when a sample such as a liquid is dropped on the sample stage for observation. It is possible to prevent this, and it is possible to reliably protect the battery housed in the light source section and the casing from the liquid, which is excellent in reliability.

Here, as the seal member, a packing formed in a ring shape with synthetic rubber or the like is preferably used. If a concave mounting groove is formed on the outer periphery of the passage hole, and the upper end side of the seal member protrudes from the sample mounting portion, the back surface of the sample table and the seal will be sealed when the sample table is mounted. The upper surface of the member is in close contact, and it is possible to prevent a sample such as a liquid from entering the inside of the housing through the passage hole.
Instead of providing an annular seal member on the outer periphery of the passage hole, the passage hole may be closed with a permeable film or sheet.

As described above, according to the small microscope of the present invention, the following advantageous effects can be obtained.
The device according to claim 1 has the following effects.
(1) A lens that is spaced apart from the light source unit housed in the housing and has a light passage hole on the upper end side of the housing, and that faces the light source unit on the upper end portion of the housing By covering the cap portion where the light source portion is disposed, the shape of the housing can be simplified by arranging the light source portion to the lens in a straight line, and the optical system is provided between the light source portion and the sample placement portion. It is unnecessary and can reduce the number of parts, and can provide a small microscope with a simple structure, small size, light weight, mass productivity, and excellent portability.
(2) By detachably covering the cap portion at the upper end portion of the housing, the sample placed on the sample placement portion can be observed while being accommodated inside the housing, It is possible to provide a small microscope excellent in reliability and observation workability in which it can be prevented from being lost due to dropping or the like, and the sample can be easily exchanged by attaching and detaching the cap part.
(3) Since the lens position is fixed by the cap part, the distance from the sample placement part to the lens is kept substantially constant, so that complicated work such as focusing is not necessary during observation, even for small children. A small microscope excellent in observation workability that can be easily used can be provided.

  According to the invention described in claim 2, in addition to the effect of claim 1, the following effect is obtained. (1) Since the light source of the light source section is a light emitting diode, the light source section has excellent long life, low power consumption and energy saving, the light source section can be easily downsized and thinned, and the design of the housing is free. It is possible to provide a small-sized microscope that is highly flexible and has excellent design flexibility.

According to the invention described in claim 3, in addition to the effect of claim 1 or 2, the following effect is obtained.
(1) Since the sample table can be detachably held on the sample table positioning unit formed on the sample mounting unit, the sample table can be positioned and held in the housing at the time of observation. It is possible to provide a small microscope with excellent observation workability that can perform various observations by exchanging the sample stage.

According to the invention described in claim 4, in addition to the effect of any one of claims 1 to 3, the following effect is obtained.
(1) Since the sample stage can be fixed by bringing the sample stage fixing part formed on the cap part into contact with the upper surface of the sample stage placed on the sample placing part, the sample stage is attached to the sample placing part. After mounting, it is possible to provide a small microscope with excellent handling property that can simply and reliably fix the sample stage simply by attaching the cap portion to the housing.

According to the device of the fifth aspect, in addition to the effect of any one of the first to fourth aspects, the following effect is obtained.
(1) A battery unit housed in the light source unit or the case can be prevented from entering the inside of the case by the liquid dropped on the sample stage by the seal part disposed on the outer periphery of the passage hole of the sample placement unit. Thus, it is possible to provide a highly reliable small microscope that can reliably protect the liquid from the liquid.

Hereinafter, a small microscope according to an embodiment of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a perspective view showing a miniature microscope in the first embodiment, and FIG. 2 is a cross-sectional side view showing the miniature microscope in the first embodiment.
In FIG. 1, 1 is a small microscope according to the first embodiment, 2 is a housing of the small microscope 1 formed in a hollow cylindrical shape by halving a synthetic resin such as polyethylene, polypropylene, polystyrene, ABS resin, AS resin, 2a is formed on the inner peripheral surface of the housing 2 in a convex shape, and is in contact with the upper and lower surfaces of the substrate 3a of the light source unit 3 to sandwich the substrate 3a, and 4 is disposed on the upper surface of the substrate 3a. The light source 5 of the light source unit 3 using a surface emitting light emitting diode is disposed on the upper surface of the substrate 3a, and the switch 5a of the light source unit 3 for switching the light source 4 on and off is exposed to the outside of the housing 2. The operation unit 6a of the switch 5 disposed in the manner extends from the back surface side of the substrate 3a to the lower end side along the inner peripheral surface of the housing 2 and is accommodated in the battery housing portion 7 of the housing 2. A leaf spring-like positive electrode that abuts against the positive terminal 15a, 6 Is a substantially L-shaped minus electrode disposed on the back side of the substrate 3a and abutting against the minus terminal 15b of the button battery 15, and 8 is a small microscope 1 formed on the upper end side of the housing 2 away from the light source section 3. 8a is a passage hole through which light emitted from the light source 4 of the light source unit 3 passes and 9 is formed in a substantially bottomed cylindrical shape and is the bottom of the housing 2. An open / close lid of the small microscope 1, which is detachably disposed on the battery housing 7 and opens and closes the battery accommodating portion 7, and a battery 15 accommodated in the battery accommodating portion 7 projecting from the inner surface of the bottom portion 9 a of the open / close lid 9. The contact portion 9d that contacts the plus terminal 15a is formed as an intermittent ridge on the inner peripheral surface on the upper end side of the peripheral wall portion 9c of the opening / closing lid 9, and is formed as an intermittent ridge on the outer periphery on the lower end side of the housing 2. Engaging protrusions 10 of the open / close lid 9 that engage with the formed open / close lid fixing portion 2b are externally attached to the bottom 9a of the open / close lid 9a. An annular insertion portion through which an attachment string is inserted, 11 is a cap portion of the small microscope 1 detachably covered on the upper end portion of the housing 2, and 11 b is a lower end of the peripheral wall portion 11 a of the cap portion 11. The engaging convex part 12 of the cap part 11 which mutually formed with the cap fixing | fixed part 2c formed in the intermittent convex strip on the inner peripheral surface of the side, and formed in the intermittent convex strip on the upper end outer periphery of the housing | casing 2, A sample stage fixing part 13 is formed so as to protrude toward the sample mounting part 8 at the approximate center of the cap part 11 and abuts against the upper surface of the sample stage placed on the sample mounting part 8 to fix the sample stage. This is a lens of the small microscope 1 that is disposed on the sample stage fixing unit 12 and faces the light source unit 3 at the approximate center of the cap unit 11.

The cylindrical housing 2 is formed in a cylindrical shape by combining two half-cylindrical members, and the open / close lid fixing portion 2b and the cap fixing portion 2c are intermittently provided on the outer periphery of the lower end side and the upper end side, respectively. Formed into a ridge. As a result, the engaging projections 9d and 11b formed on the inner peripheral surfaces of the peripheral wall portions 9c and 11a can be turned into the open / close lid fixing portion 2b and the cap fixing portion 2c only by rotating the opening and closing lid 9 and the cap portion 11, respectively. It can be engaged and fixed, and is easy to handle. Moreover, since there is no protrusion etc. on the outer periphery of the housing | casing 2, it is hard to generate | occur | produce a damage and is excellent in portability and handleability.
The fixing means for the housing 2 and the opening / closing lid 9 and the cap portion 11 is not limited to the present embodiment, and the opening / closing lid 9 and the cap portion 11 can be detachably fixed to the housing 2. I just need it.

As the light source 4, a surface emitting type light emitting diode capable of emitting white light alone was used. Thereby, there is little light emission unevenness and uniform light emission is possible and the visibility is excellent, and the entire light source unit 3 can be downsized and the design flexibility is excellent.
The light source 4 is not limited to this embodiment, and any light source that can irradiate the sample with sufficient light for observation is acceptable.
As the lens 13, a high-magnification special glass lens chip was used. Thereby, the cap part 11 is reduced in weight and size, and the handleability is improved.
The lens 13 was disposed at a position recessed from the surface of the cap portion 11 to the inside of the housing 2. As a result, the surface of the lens 13 can be prevented from being stained, scratched, broken, and the like, and the handleability is excellent.
The magnification of the lens 13 can be appropriately selected according to the type of sample. If a plurality of cap parts 11 in which lenses 13 having different magnifications are arranged in advance are prepared, observation can be performed at an optimum magnification simply by replacing the cap parts 11 according to the sample. Excellent.

  By inserting a string or the like through the annular insertion portion 10 formed in the opening / closing lid 9a, it can be attached to a key holder or the like and is excellent in portability. When an annular insertion portion similar to the opening / closing lid 9a is provided on the outside of the housing 2, the outside of the peripheral wall portion 11a of the cap portion 11, etc., they can be connected to each other with a string or the like. Can be lost. Moreover, if the cap part for replacement | exchange provided with the lens from which magnification differs is connected with the annular penetration part 10, the cap part 11 can be replaced | exchanged immediately as needed and it is excellent in handleability.

A method of using the small microscope according to the first embodiment formed as described above will be described.
FIG. 3A is a cross-sectional side view of the main part showing a state in which the sample stage is placed on the sample placement portion of the small microscope in the first embodiment, and FIG. 3B is a view of the small microscope in the first embodiment. It is a principal part cross-section side view which shows the state which fixed the sample stand to the sample mounting part.
In FIG. 3, reference numeral 20 denotes a transmissive sample stage formed of a transparent plastic plate or the like and placed on the specimen placing part 8, and 21 denotes a sample to be observed placed on the specimen stage 20.
First, the cap part 11 is removed from the housing 2, and the sample stage 20 on which the sample 21 is placed is placed on the sample placing part 8 as shown in FIG.
Next, as shown in FIG. 3B, the cap portion 11 is attached to the housing 2. The sample stage fixing part 12 abuts on the upper surface of the sample stage 20, and the sample stage 20 is fixed between the sample placing part 8 and the cap part 11.
By sliding the operation unit 5a of the switch 5 disposed on the side of the housing 2, the light source 4 of the light source unit 3 is turned on and the sample 21 is irradiated with light (see FIGS. 1 and 2).
The observer can observe the sample 21 magnified through the lens 13.
Examples of observation targets include microorganisms such as daphnia, crystals such as salt, and bacteria such as bifidobacteria.

As described above, since the compact microscope according to the first embodiment is configured, it has the following effects.
(1) Since the light source unit 3 is disposed inside the hollow housing 2 having the battery housing unit 7, the light source unit 3 can be driven by the battery 15, and the housing 2 is reduced in size and weight. In addition, the light source unit 3 can be protected by the housing 2, and the handling reliability is excellent.
(2) The sample mounting portion 8 formed on the upper end side of the housing 2 away from the light source portion 3 has a passage hole 8a through which light emitted from the light source portion 3 passes, and is provided at the upper end portion of the housing 2. Since the lens 13 facing the light source unit 2 is disposed on the cap unit 11 that is detachably covered, the light source unit 3 to the lens 13 can be arranged in a straight line, and the shape of the housing 2 can be changed. In addition to simplification, no optical system is required between the light source unit 3 and the sample mounting unit 8, the structure can be simplified and the number of parts can be reduced, and the size and weight can be reduced. Excellent in properties.
(3) Since the sample placement portion 8 is formed on the upper end side of the housing 2 and the cap portion 11 is detachably covered on the upper end portion of the housing 2, the sample 21 is accommodated inside the housing 2. In this state, the sample 21 can be prevented from being lost due to dropping or the like and excellent in reliability, and the sample 21 can be easily replaced by attaching and detaching the cap portion 11. And is excellent in observation workability.
(4) Since the distance from the sample mounting portion 8 to the lens 13 becomes substantially constant by attaching the cap portion 11 on which the lens 13 is disposed to the housing 2, the sample according to the focal length of the lens 13 in advance. A distance from the mounting portion 8 to the lens 13 is set, and a complicated operation such as focusing is not required at the time of observation, so that even a small child can easily use it, and the observation workability is excellent.
(5) Since the light source unit 3 is accommodated in the housing 2, the light source is reliably supplied to the sample 21 at any time in the rain, at night, or in a dark place without being influenced by the place or the weather. It is possible to perform observation by irradiating light from 4, which is excellent in versatility.
(6) Since the light source 4 of the light source unit 3 is a light emitting diode, the light source 4 has an excellent long life, low power consumption and excellent energy saving, and the light source unit 3 can be easily downsized and thinned. 2 has a high degree of freedom in design and is excellent in design flexibility.
(7) Since the cap unit 11 has the sample table fixing unit 12 that contacts the upper surface of the sample table 20 mounted on the sample mounting unit 8 and fixes the sample table 20, the sample table 20 is mounted on the sample mounting unit 8. After the sample is placed, the sample stage 20 can be simply and reliably fixed simply by attaching the cap portion 11 to the housing 2, and the handleability is excellent.
(8) By using the button battery 15 as the drive source of the light source unit 3, the housing 2 can be reduced in size, and the small microscope 1 can be reduced in weight and portability can be improved.
(9) Since the sample stage 20 can be placed on the sample placement part 8 and the passage hole 8a can be closed, even when the sample 21 contains moisture, electrical failure due to the moisture can be prevented. Excellent reliability.
(10) Since the opening / closing lid 9 is detachably disposed on the bottom of the housing 2, the button battery 15 can be easily replaced by removing the opening / closing lid 9, and the handleability is excellent.

(Embodiment 2)
FIG. 4 is a cross-sectional side view of an essential part showing a sample placement portion of a small microscope in the second embodiment. Components similar to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
In FIG. 4, the small microscope in the second embodiment is different from the first embodiment in that it projects from the upper surface of the sample mounting portion 8 and contacts the front, rear, left and right end surfaces of the sample table 20 to position the sample table 20. It is the point which is equipped with the four sample-like sample stand positioning parts 8b to do.
Since the sample stage positioning portion 8b is formed in a plurality of independent protrusions, the sample stage 20 can be reliably prevented from being displaced, and a part of the sample stage 20 can be grasped and easily replaced. Excellent handleability.
The shape and arrangement of the sample stage positioning unit 8b are not limited to those in the present embodiment, but may be any as long as the sample stage 20 can be positioned on the sample mounting unit 8.
In addition, since the usage method of the small microscope in Embodiment 2 is the same as that of Embodiment 1, description is abbreviate | omitted.

As described above, since the compact microscope according to the second embodiment is configured, in addition to the actions obtained in the first embodiment, the following actions are provided.
(1) Since the sample mounting part 8 has the sample stage positioning part 8b for positioning the sample stage 20, the sample stage 20 can be positioned and held in the housing 2 and the positional deviation of the sample stage 20 is prevented. In addition, the sample stage 20 can be easily exchanged for various observations, and the observation workability is excellent.

(Embodiment 3)
FIG. 5 is a cross-sectional side view of the main part showing a state in which the sample stage is fixed to the sample mounting part of the small microscope according to the third embodiment. Components similar to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
In FIG. 5, the small microscope in the third embodiment is different from the first embodiment in that a concave mounting groove 8c is formed on the outer periphery of the passage hole 8a of the sample mounting portion 8 and is formed in an annular shape with synthetic rubber or the like. The seal member 8d is disposed.
If the upper end side of the seal member 8d is disposed so as to protrude from the upper surface of the sample mounting portion 8, the seal is placed when the sample stage 20 is mounted on the sample mounting portion 8 and the cap portion 11 is attached. The member 8d is crushed and the back surface of the sample table 20 and the upper surface of the seal member 8d are in close contact with each other, so that the sample 21 such as a liquid can be prevented from entering the inside of the housing 2 from the passage hole 8a.
In addition, since the usage method of the small microscope in Embodiment 3 is the same as that of Embodiment 1, description is abbreviate | omitted.

As described above, since the compact microscope according to the third embodiment is configured, in addition to the actions obtained in the first embodiment, the following actions are provided.
(1) Since the sample mounting portion 8 has the seal member 8d disposed on the outer periphery of the passage hole 8a, the sample 21 is not in the housing when the sample 21 such as a liquid is dropped on the sample stage 20 for observation. Intrusion into the body 2 can be prevented, and the light source 3 and the battery 15 accommodated in the housing 2 can be reliably protected from the liquid, so that the reliability is excellent.

  The present invention has a simple structure and can be easily carried in a small and light weight. It is excellent in portability and space saving, and the components such as the light source and lens are protected by the housing. Because it is robust and does not require complicated work, even children can easily observe various things, and observation workability and handling that allows observation under almost constant conditions regardless of location and weather The present invention provides a small-sized microscope having excellent properties and durability, and can easily observe microorganisms, crystals, bacteria, and the like.

The perspective view which shows the small microscope in Embodiment 1. FIG. Sectional side view which shows the small microscope in Embodiment 1. FIG. (A) Main part sectional side view showing a state where the sample stage is placed on the sample placement part of the small microscope in the first embodiment (b) Fixing the sample stage to the sample placement part of the small microscope in the first embodiment Cross-sectional side view Cross-sectional side view of the main part showing the sample placement part of the small microscope in the second embodiment Cross-sectional side view of the main part showing a state in which the sample stage is fixed to the sample placement part of the small microscope in the third embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Small microscope 2 Case 2a Substrate fixing convex part 2b Opening / closing lid fixing part 2c Cap fixing part 3 Light source part 3a Substrate 4 Light source 5 Switch 5a Operation part 6a Plus electrode 6b Negative electrode 7 Battery accommodating part 8 Sample mounting part 8a Passing hole 8b Sample stage positioning part 8c Mounting groove 8d Seal member 9 Opening / closing lid 9a Bottom part 9b Contact part 9d, 11b Engaging convex part 9c Peripheral wall part 10 Annular insertion part 11 Cap part 12 Sample stage fixing part 13 Lens 15 Battery 15a Plus terminal 15b Negative terminal 20 Sample table 21 Sample

Claims (5)

A hollow housing having a battery housing portion, a light source portion disposed inside the housing, a passage hole through which light emitted from the light source portion passes, and spaced apart from the light source portion, A sample placement portion formed on the upper end side, a cap portion detachably covered on the upper end portion of the housing, and a lens disposed on the cap portion and facing the light source portion. A small microscope characterized by 2. The compact microscope according to claim 1, wherein a light source of the light source unit is a light emitting diode. The small microscope according to claim 1, wherein the sample placement unit includes a sample stage positioning unit that positions a sample stage. The said cap part was provided with the sample stand fixing | fixed part which contact | abuts to the upper surface of the sample stand mounted in the said sample mounting part, and fixes a sample stand. The small microscope as described in the item. The small microscope according to any one of claims 1 to 4, wherein the sample mounting portion includes a seal member disposed on an outer periphery of the passage hole.

Images