JP4461547B2 - microscope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a microscope, and more particularly to a microscope that is small and suitable for carrying.
[0002]
[Prior art]
Microscopes that are small and light and suitable for carrying have been put to practical use, for example, as described in Japanese Utility Model Publication No. 60-154912. FIG. 11 is an external view of such a microscope. In such a microscope, a lens barrel 200 for magnification adjustment is slidably fitted to a lens barrel 100 provided with an eyepiece 800, and a mirror provided with an objective lens at the tip of the lens barrel 200 for magnification adjustment. A cylinder 300 is arranged to be movable via a fine adjustment mechanism 500. In addition, a hood 600 that also serves as a preparation attachment is formed and attached to the tip of the objective lens barrel 300 from a transparent resin or the like so that light for illuminating the observation object can be taken in from the outside.
[0003]
[Problems to be solved by the invention]
In such a conventional microscope, in order to obtain a desired magnification by adjusting the position of the magnification adjusting lens barrel, a stop position regulating mechanism 700 based on a concave-convex relationship between the lens barrels is provided, and the desired magnification is set. Trying to get. For this reason, there is a problem that the structure becomes complicated and affects the cost.
[0004]
In addition, the hood at the tip of the objective lens is transparent, but the periphery is closed, so when moving the observation object placed in the hood or changing its posture, It had to be lifted upwards, and as a result, it was time consuming to refocus.
[0005]
In addition, since a portable microscope equipped with a battery illumination device has been put into practical use when light from the outside cannot be obtained, in such a case, a battery serving as a power source for an illumination bulb is used. There are problems such as a large space in the battery chamber to be accommodated and a long microscope to obtain a high magnification, which is inconvenient for carrying.
[0006]
Furthermore, since a small incandescent bulb is suitably used in a lighting device that uses a battery as a power source, there is a problem that an object to be examined looks reddish and cannot be seen as an actual color.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to solve such various problems of conventional microscopes and to provide a microscope that is easy to use and excellent in portability.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the microscope of the present invention is provided with a focusing operation mechanism that includes an eyepiece provided with an eyepiece and slidable by pulling or pushing operation to change a magnification and an objective lens provided with an objective lens. O-ring having an objective tube housing portion, a light source for illuminating the observation object, and a battery chamber for housing a battery as a power source of the light source, and formed of an elastic material on the outer periphery and having an appropriate friction coefficient on the surface The lens barrel inner periphery is fitted to and slides on the outer periphery of the objective barrel housing portion wound around the lens barrel, so that an arbitrary position can be selected and held. Can be stored up to the level of the upper end of the battery chamber.
[0009]
Thereby, it is possible to provide a compact case-shaped compact cigarette case, which can be easily put into a breast pocket or the like, and can be easily placed in a chest pocket. An arbitrary position can be selected and held by the inner periphery of the lens barrel fitting and sliding on the outer periphery of the part.
[0010]
In addition, a filter is provided outside the light source for illuminating the observation target, and the filter corrects the color characteristics of the light source and is pivotally supported at one end so as to support bulb replacement. Is desirable.
[0011]
In addition, a hood formed of a transparent material is detachably provided around the tip of the objective barrel housing portion and the tip of the light source for illumination, and a part of the side wall of the hood has a position of an observation object arranged in the hood. It is desirable to provide a notch for performing a posture changing operation.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The microscope of the present invention includes a small light bulb for illumination to be observed and uses a battery as a power source. As the battery, a lithium battery having a small size, a large capacity, and a long life is suitable for such a use as compared with a general battery, and a lithium primary battery or a secondary battery may be used, but a lithium primary battery CR123A or the like is used. It is desirable because it is easily available. In the future, as the development of batteries progresses, it seems that smaller and higher capacity batteries will naturally appear. However, it is obvious that using these batteries in the microscope of the present invention can further reduce the size and is optimal. .
[0013]
In addition, the magnification magnification can be selected by sliding a lens barrel provided with an eyepiece, and the lens barrel is pushed to the same level as the height of the battery chamber, and the battery is loaded into the battery chamber. Thus, the entire lithium battery can be made small and compact.
[0014]
The movable lens barrel is slid in contact with the elastic member O-ring on the outer periphery of the objective lens barrel housing portion that houses the fixed objective lens barrel. The O-ring is formed of an elastic material such as rubber and the outer surface thereof is processed so as to obtain an appropriate friction coefficient. By doing so, the magnification can be set smoothly, and it is ensured that the state is maintained.
[0015]
The characteristics of the light bulb are corrected with an optical filter so that it does not become reddish. In consideration of bulb replacement, this filter is pivotally supported at one end and is rotated when necessary so that the bulb is exposed. In addition, a transparent hood that can be attached and detached is provided surrounding the objective lens and the illumination bulb, and a cutout into which tweezers and the like can be inserted is provided on a part of the side wall of the hood to provide a minute observation target. Easy movement and posture change.
[0016]
【Example】
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view for explaining the whole, FIG. 2 is a front view of the same appearance, 1 is a resin main body, an objective barrel housing portion 12 for housing an objective barrel 12b including an objective lens 12a, A battery chamber 13 for storing a battery BATT serving as a power source for the bean bulb 7 for illumination is provided. Reference numeral 2 includes an eyepiece 2e to which eyepieces 2b and 2c are attached. A lens barrel 3 is slidable in the optical axis direction. 3 is detachable from the lower end of the main body 1. A hood formed of a transparent material. The battery lid is detachable from the main body 1 for taking in and out the battery BATT to be loaded into the battery chamber 13 provided in the main body 1. The internal details of each part will be described later in order, and the external configuration will be described.
[0017]
FIGS. 1 and 2 show the state in which the lens barrel 2 is pulled out. FIGS. 3 to 8 show external views of the lens barrel 2 in the retracted state. The lens barrel 2 is fitted on the outer periphery of the objective lens barrel housing portion 12 provided in the main body 1 and is slidable. When the lens barrel 2 is not used such as when being carried, the lens barrel 2 is slid down and stored. As can be seen from the front view, the back view of FIG. 4, the left side view of FIG. 5, and the right side view of FIG. 6, the upper end of the battery chamber 13 is stored to a level that coincides with the upper end of the battery lid 4. 7 is a bottom view, and FIG. 8 is a top view. In this way, when stored, the entire cigarette case has a compact shape and size.
[0018]
FIG. 9 shows a state in which the lens barrel 2, the hood 3, and the battery cover 4 are removed from the main body 1. FIG. 10 is an exploded perspective view of the microscope of the present invention. The internal details of each part will be described with reference to FIG. 1 and FIGS. 9 and 10.
[0019]
The main body 1 is divided into two substantially symmetrically as shown in FIG. 10 for the convenience of assembly and molding. FIG. 10 shows the main body 1A as one side and the main body 1B as the other side, and both of them are assembled and joined by means of bonding or concavo-convex relation coupling means after assembling internal elements.
[0020]
In the main bodies 1 </ b> A and 1 </ b> B, 11 is a base portion, and an objective barrel housing portion 12 and a battery chamber 13 are integrally extended upward from the base portion 11. A hood attachment portion 14 is integrally extended downward from the base portion 11.
[0021]
In the objective barrel housing portion 12, an objective lens 12a, an objective barrel 12b, and an adjustment knob 12c are assembled. The objective lens 12a is fixed to the tip of the objective barrel 12b. The screw 12d provided on the outer periphery of the objective lens 12b is screwed with a screw portion (not shown) provided on the inner periphery of the adjustment knob 12c, and the adjustment knob 12c is rotated. Thus, the position of the objective lens 12a moves in the optical axis direction to perform focusing. Since such a focusing mechanism is known, detailed description is omitted.
[0022]
The battery chamber 13 is set in such a shape and size that a 3V type lithium battery such as CR123A is used. In the battery chamber 13, a battery lead 13a, a bean ball terminal 13b, and a switch spring 13c are assembled. Reference numeral 7 denotes a bean ball, and when it is mounted, its terminal comes into contact with the bean ball terminal 13b and the like to be energized for illumination.
[0023]
Further, a hole 11a for attaching the switch slide 5 is formed on the side surface of the base portion 11, and the battery lead 13a and the bean ball terminal 13b in the battery chamber 13 are operated by sliding the switch slide 5 after the attachment. Engage with the switch spring 13c to turn on and off the energization to the bean ball 7. Since these structures are well known, for example, for portable electric lamps, their description including the circuit diagram is omitted.
[0024]
6 is a filter. In the hood attachment part 14 below the base part 11, when one end is pivotally attached and pivotally attached, and when it is turned to the attached state, the filter 6 is an incandescent bulb light color. It is made of a transparent material having a color characteristic close to that of natural light.
[0025]
The lens barrel 2 is also divided into two substantially symmetrically as shown in FIG. 10 for convenience of assembly and molding. One is the lens barrel 2A, and the other is the lens barrel 2B. Both are assembled by bonding or concavo-convex coupling means after assembling the internal elements.
[0026]
A bush 2a, an eyepiece lens 2b, a spring 2c, an eyepiece lens 2d, an eyepiece tube 2e, and a lens barrel cap 2f are assembled to the lens barrel 2 sequentially from below.
[0027]
3 is a hood formed of a colorless transparent material that can be attached and detached using the fitting portion 3b having a shape and size to be fitted to the hood attachment portion 14 at the lower end of the main body 1 as described above. The placed test object is shaped to surround and illuminate by taking in external light in four directions from the front, back, left and right, but is provided with a notch 3a on the short side wall.
[0028]
8 is an O-ring. It is formed of an elastic material such as rubber and is fitted into a ring-shaped groove 12d provided at a position close to the upper end of the objective barrel housing part 12.
[0029]
The microscope having the above configuration is used as follows. An object to be inspected is placed in the hood 3 and the lens barrel 2 is slid. As shown in FIG. 2 to FIG. The arrow P is aligned and the adjustment knob 12c is turned to focus while observing from the lens barrel cap 2f at the upper end of the lens barrel 2. Since the hood 3 is transparent, it can be observed when the external light is sufficient.
[0030]
When the outside light is insufficient, the illumination device provided in the microscope is used. The battery lid 4 is opened and closed, and a lithium battery such as CR123A is loaded into the battery chamber 13. The switch slide 5 is slid to displace the switch spring 13c, the bean ball 7 is energized, and the object to be inspected is illuminated and observed. At this time, the filter 6 is interposed between the bean bulb 7 and the object to be inspected. As described above, the filter 6 has a color that makes the color of the light emitted from the bean bulb 7 have a color temperature close to natural light. Because it is made of transparent material, natural observation becomes possible.
[0031]
There are cases where it is desired to move the object to be inspected minutely during observation. In such a case, tweezers or the like can be inserted and moved from the notch 3a provided in the hood 3, and the posture can be changed.
[0032]
When the bean ball 7 is broken or the like, the filter 6 is rotated to expose the bean ball 7 so that the replacement work is easy.
[0033]
After the observation is finished, the switch slide 5 is operated to turn off the energization of the bean bulb 7, and the lens barrel 2 is lowered to the lowest end and stored. As described above, the retracted state is stored up to a level where the upper end of the lens barrel 2 coincides with the upper end of the battery lid 4, so that the cigarette case is compact and convenient for carrying and storing.
[0034]
In the above description, the lens barrel in which the objective lens 12a that is displaced in the optical axis direction by the focusing operation of the adjustment knob 12c is arranged is referred to as the objective lens barrel 12b, and the portion of the main body 1 that accommodates the objective lens barrel 12b. However, this is for the sake of convenience, and even if the whole is called the objective barrel, it has the same meaning.
[0035]
【The invention's effect】
As described above, according to the present invention, a small-sized, high-capacity battery such as a lithium battery is used as a power source for the specimen illumination light source, and the lens barrel is pushed in and lowered so that the upper end of the lens barrel is raised to the height of the battery chamber. Since it is stored up to a position equal to the height, the entire microscope becomes small, and a great effect is obtained that is convenient for carrying and storing.
[0036]
In addition, the lens barrel that is pulled out or pushed in to change the magnification is slid in contact with the fixed-side lens barrel or the O-ring wound around the outer periphery of the housing, so that the sliding operation is smooth. In addition, it can be stopped at an arbitrary position, the zooming operation is extremely easy, and the cost can be reduced.
[0037]
In addition, since a filter that corrects the color characteristics of the lighting bulb is provided, the object to be observed can be illuminated with a natural color, and since it can be rotated, it is extremely easy to replace the bean bulb. can do.
[0038]
In addition, since the hood that surrounds the four sides of the observation object is provided with a notch, if you want to move the observation object slightly or change the angle, you can work using this notch, Thus, it is not necessary to lift the entire microscope each time, and it is not necessary to perform focusing again, thereby contributing to an increase in observation efficiency.
[Brief description of the drawings]
FIG. 1 is a front sectional view of an embodiment of the present invention. FIG. 2 is a front view of an embodiment of the present invention. FIG. 3 is a front view of an embodiment of the present invention. 5 is a side view of an embodiment of the present invention. FIG. 6 is a side view of an embodiment of the present invention. FIG. 7 is a bottom view of an embodiment of the present invention. FIG. 10 is an exploded perspective view of an embodiment of the present invention. FIG. 11 is an external view of a conventional microscope.
DESCRIPTION OF SYMBOLS 1 Main body 2 Lens barrel 2b, 2d Eyepiece 2c Spring 3 Hood 4 Battery cover 5 Switch slide 6 Filter 7 Bean ball 8 O-ring 11 Base part 12 Objective lens holder 12a Objective lens 12b Objective lens cylinder 12c Adjustment knob 13 Battery compartment BATT battery

Claims (3)

A lens barrel equipped with an eyepiece and slidable by pulling out or pushing in, and having a variable magnification, an objective barrel containing an objective lens having an objective lens and provided with a focusing operation mechanism, and an observation object illumination A light source, and a battery chamber that houses a battery as a power source of the light source,
An arbitrary position can be selected by fitting and sliding the inner periphery of the lens barrel on the outer periphery of the objective tube housing part formed by an elastic material on the outer periphery and wound with an O-ring whose surface has an appropriate friction coefficient. A microscope which is capable of being held and can be retracted to the level of the upper end of the battery chamber when the lens barrel is pushed in. A filter is provided outside the light source for illuminating the observation object, and the filter corrects the color characteristics of the light source and is pivotally supported at one end so as to be compatible with bulb replacement. The microscope according to claim 1. A hood formed of a transparent material is detachably provided around the tip of the objective barrel housing and the tip of the light source for illumination, and the position and posture of the observation object arranged in the hood are partially attached to the side wall of the hood. The microscope according to claim 1, further comprising a notch for performing a changing operation.

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