JP2590301Y2 - Microscope photography equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microscope photographing apparatus for forming a microscope observation image on a film surface via a photographing lens.

[0002]

2. Description of the Related Art FIG. 17 shows a configuration example of a microscope apparatus having a photographing device. In this apparatus, a plurality of objective lenses 3 having different magnifications are mounted on a revolver 2 mounted on a microscope main body 1, and an objective lens having an arbitrary magnification is arranged on the optical axis by rotating the revolver 2. The trinocular tube 4 is arranged above the revolver 2 and guides the observation image of the sample S to the eyepiece 5 and the photographing device 6, respectively.

An observation image guided to the photographing device 6 is formed on a film surface of a camera 7 through a photographing lens provided in an optical path on a photographing optical path side in the trinocular tube 4.
Then, the photographing apparatus main body 6 performs a photographing operation based on a command given from the operation unit 8 to the photographing apparatus main body 6, and photographs a microscope observation image.

In such an apparatus, in order to prevent the magnification from being lost due to the rotation of the revolver 2, the objective lens 3
There is a system in which a bar code is provided and the magnification is detected by optically reading the bar code. By adopting such a method, the inconvenience of checking the magnification by looking into the revolver 2 every time the revolver 2 is rotated and the objective lens 3 is replaced is eliminated.

[0005]

However, in the case of photographing, the photographing lens 9 must be inserted into the trinocular tube 4 as shown in FIG. Since the photographing lens 9 is completely invisible from the outside when the photographing apparatus main body 6 is attached, the magnification of the photographing lens 9 and even the presence or absence of the photographing lens 9 can be confirmed. Will be gone.

When the sample S is evaluated using a photograph, the photographing magnification is extremely important information, and it is necessary to confirm the magnification of the photographing lens 9. In such a case, conventionally, there has been no method other than removing and confirming the photographing apparatus main body 6. Therefore, a very complicated operation is required, and there is a possibility that the sample S may be displaced or damaged by an impact at the time of removal, which is not preferable. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a microphotographing apparatus capable of easily confirming the presence or absence and magnification of a photographing lens.

[0007]

In order to solve the above-mentioned problems, the present invention comprises a trinocular tube for guiding an observation image to an eyepiece and a photographing device, respectively. In a microscopic photographing apparatus in which the lens is exchangeably inserted, a mark representing a magnification of the lens is provided on the outer peripheral surface of the lens for photographing, and the photographing lens is inserted into the trinocular tube. Wherein the lens is provided with a window at a portion facing the mark, the window communicating with the outside.

[0008]

In the microscope photographing device of the present invention, if the photographing lens is inserted in the trinocular tube in a state where the photographing device is assembled, it can be visually recognized from a window provided in the trinocular tube. By reading the mark on the outer peripheral surface of the photographic lens, the user can know the magnification of the lens. In addition, when the photographic lens is not inserted into the trinocular tube, it can be confirmed that the photographic lens is not inserted through the window.

[0009]

Embodiments of the present invention will be described below. FIG. 1 shows a configuration of a trinocular tube part, which is a main part of the microphotographing apparatus according to the first embodiment.

The microscope photographing apparatus according to the present embodiment includes an outer peripheral surface of a photographing lens 11 inserted into a trinocular tube 10.
A magnification mark 12 is provided as a magnification information holding unit. The magnification mark 12 is formed of a band of a color corresponding to the magnification of the lens 11 (the photographing lens 11 in the figure is yellow).

On the side wall of the trinocular tube 10, a window 13 communicating with the outside is formed at a portion of the photographic lens 11 facing the magnification mark 12 when the photographic lens 11 is inserted. . From this window 13, the magnification mark 12 inside the trinocular tube 10 can be seen. A shield plate 14 is provided on the window 13 so as to be openable and closable, and can be opened and closed from the outside by a lever 15 linked to the shield plate 14. In the present embodiment, the window 13, the shielding plate 14, the lever 15, and the like constitute a magnification reading unit.

FIG. 2 (b) shows that the shielding plate 14 is opened and the window 1 is opened.
3 shows a state in which the magnification mark 12 can be visually observed, and FIG. 3A shows a state in which the shielding plate 14 is closed. Reference numeral 16 denotes a photographing apparatus main body, and reference numeral 17 denotes an eyepiece.

As shown in FIG. 3, a photographic lens used in the present embodiment is a magnification mark 18a, 19 of a color determined according to the lens magnification of each lens 18, 19.
b is formed at the same position as the photographic lens 11. In the present embodiment, the photographing lens 11 of 3.3 times is used.
Denotes a yellow magnification mark 12, a 6.7x photographic lens 18 uses a red magnification mark 18a, and a 2.5x photographic lens 19 uses a blue magnification mark 19a.

In this embodiment constructed as described above, for example, a 3.3 times photographic lens 11 is inserted into the trinocular tube 10, and a photographic apparatus body 16 is mounted thereon.
As a result, as shown in FIG. 2A, the photographing lens 11 is invisible from the outside.

In this state, when the lever 15 is slid in a predetermined direction from the outside, the shielding plate 14 is interlocked and the window 13 is opened, and the state shown in FIG. Since the magnification mark 12 of the photographic lens 11 inserted into the trinocular tube 10 is located at a position facing the window 13,
The magnification mark 12 can be seen from the window 13, and the magnification of the photographing lens 11 can be read from the color of the magnification mark 12. If the photographing lens 11 is not inserted into the trinocular tube 10, the magnification mark cannot be seen from the window 13, so that it can be known that the photographing lens 11 is not inserted.

As described above, according to this embodiment, the trinocular tube 10
Magnification marks 12, 18a, 19a corresponding to the respective magnifications are formed on the respective photographing lenses 11, 18, 19 to be inserted into the inside, and on the side wall of the trinocular tube 10 facing the magnification marks,
Since the window 13 and the openable and closable shielding plate 14 are provided, the magnification mark can be read from the outside as necessary without disassembling the photographing apparatus, and the magnification of the inserted photographing lens and photographing can be taken. The presence or absence of a lens for use can be known very easily. Next, a second embodiment of the present invention will be described with reference to FIGS.

FIG. 4 shows the configuration of a partial cross section of the trinocular tube portion. In the present embodiment, a bar code 23 as a magnification information holding unit is formed on a predetermined area in the optical axis direction on the outer peripheral surface of the photographic lens 22 inserted into the trinocular tube 21. The bar code 23 indicates the magnification of the lens by a combination of the reflection surface 23a and the non-reflection surface 23b.

On the side wall of the trinocular tube 21, two reflective photoreflectors 24 and 25 are provided in the vertical direction on the inner surface facing the barcode 23 forming region of the photographic lens 22. Then, the photoreflectors 24 and 25 are input to a signal processing circuit 26, and the processed signals are sent to a photographic magnification display panel (not shown) via a connector 27 and a cable 28. Photo reflector 24, 2
5. The magnification reading means comprises the signal processing circuit 26 and the like.

FIG. 5 shows a circuit configuration of the photoreflectors 24 and 25 and the signal processing circuit 26. As shown in the figure, photoreflectors 24 and 25 are light emitting diodes 24a and 2 that emit light when a constant voltage Vcc is applied.
5a, and phototransistors 24b and 25b that receive reflected light from the barcode 23 at the base electrode and conduct. The signal processing circuit 26 has terminals 29 and 30 to which the collectors of the phototransistors 24b and 25b are connected. The terminals 29 and 30 are connected to the phototransistors 2 of the corresponding photoreflectors 24 and 25.
Since the potential corresponding to the voltage Vcc appears only when light is received by the terminals 4b and 25b, the signal processing circuit 26
The signal “H” is output to the connector 27 when the signal 30 is at a high level, and the signal “L” is output when the signal 30 is at a low level.

In this embodiment, similar to the first embodiment,
It is assumed that a 3.3 times photographic lens 22, a 6.7 times photographic lens 31, and a 2.5 times photographic lens 32 are used. Each photographing lens 22, 31, 32
, Bar codes 23, 33, and 34 indicating the respective magnifications are formed in advance. As described above, the barcode 23 of the photographic lens 22 has the non-reflective surface 23b formed at the position facing the photoreflector 24, and the reflective surface 23a formed at the position facing the photoreflector 25. In addition, the barcodes 33 of the photographic lens 31 are all reflection surfaces. Further, the bar code 34 of the photographing lens 32 has a reflective surface 34b formed at a position facing the photoreflector 24, and a non-reflective surface 34a formed at a position facing the photoreflector 25.

The photographing magnification display panel is shown in FIG.
Are provided with a table conversion function based on the table shown in FIG.
The magnification of the photographic lens is displayed in accordance with the voltage states “H” and “L” of FIG.

In this embodiment constructed as described above, for example, if the 3.3 times photographic lens 22 is attached to the trinocular tube 21, the magnification of the photographic lens 22 is not visible from the outside. State. In this state, the barcode 23 of the photographing lens 22 mounted in the trinocular tube 21 faces the photoreflectors 24 and 25.
Therefore, by causing the light emitting diodes 24a and 25a of the photoreflectors 24 and 25 to emit light, the light enters the reflection surface 23a and the non-reflection surface 23b of the bar code 23.

At this time, since the reflected light from the non-reflective surface 23b is hardly attenuated or greatly attenuated,
b, the phototransistor 24b of the photoreflector 24 that is opposed to b does not conduct. Therefore, the output of the terminal 29 becomes "H".

On the other hand, the reflecting surface 23a generates reflected light sufficient to make the phototransistor 25b of the photoreflector 25 facing the reflecting surface 23a conductive, so that the phototransistor 25b is made conductive and the output of the terminal 30 is Becomes “L”. Since the signal of the terminal 29 is "H" and the signal of the terminal 30 is "L" on the photographing magnification display panel, the photographing magnification of 3.3 times is displayed. In the case of other photographic lenses 31 and 32, the same magnification reading as described above can be performed based on the table of FIG.

When the photographic lens is not inserted, the phototransistors 24b and 25b do not conduct, and the photoreflector 2 has no reflection surface.
The outputs of Nos. 4 and 25 are both "H" and "H", and a message indicating that the photographing lens is not inserted is displayed on the photographing magnification display panel.

As described above, according to the present embodiment, the barcodes 23, 33, and 34 indicating the respective magnifications are formed on the photographic lenses 22, 31, and 32 to be used.
Since optical reading is performed by the photoreflectors 24 and 25 provided inside, the presence or absence of the photographic lens or the magnification thereof can be detected very easily as in the first embodiment. Next, a third embodiment of the present invention will be described with reference to FIGS.

FIG. 8 shows the configuration of a partial cross section of the trinocular tube portion. In the present embodiment, non-conductive surfaces 41a and conductive surfaces 41b and 41c as magnification information holding units are formed at predetermined positions in the optical axis direction on the outer peripheral surface of the photographing lens 41 inserted into the trinocular tube 40. doing. The combination of the non-conductive surface and the conductive surface indicates the magnification of the lens.

On the side wall of the trinocular tube 40, spring-type metal contacts 42 to 44 projecting perpendicular to the optical path side are provided at respective positions facing the magnification information holding portions of the respective photographic lenses. . The outputs of the metal contacts 42 to 44 are input to a signal processing circuit 45, and the processed signals are sent to a photographic magnification display panel (not shown) via a connector 46 and a cable 47. In this embodiment, the metal contacts 42 to 4
4. A magnification reading means is constituted by the signal processing circuit 45 and the like.

As shown in FIG. 9, the metal contacts 42 to 44 slightly protrude from the inner side wall of the trinocular tube 40 when the photographic lens is not inserted, so that the photographic lens is inserted. Then, it is pushed down to the side wall, and its tip comes into contact with the outer peripheral surface of the photographic lens. FIG. 10 shows a circuit configuration of the signal processing circuit 45. The signal processing circuit 45 grounds the metal contact 44, applies a constant voltage Vcc to the metal contacts 42 and 43, and connects to the terminals 48 and 49, respectively.

Further, each photographing lens having a different magnification (in this embodiment, 3.3 times, 6.times.
FIG. 11 shows a configuration of a magnification information holding unit provided in the 7 × and 2.5 × photographic lenses 41, 51, and 52).

As shown in FIG.
Is that only the region facing the metal contact 42 is the non-conductive surface 41a
And the other opposing regions are conductive surfaces 41b, 4
1c. Further, the photographic lens 51 has a conductive surface 51b in all regions facing the metal contacts 42 to 44.
It has become. Further, in the photographic lens 52, a region facing the metal contact 42 is a conductive surface 52a, a region facing the metal contact 43 is a non-conductive surface 52b, and a region facing the metal contact 44 is a conductive surface 52c. FIG. 12 shows a conversion table for displaying the magnification of the photographing magnification display panel.

In this embodiment constructed as described above, for example, as shown in FIG.
Is inserted into the trinocular tube 40, the metal contact 42 comes into contact with the non-conductive surface 41a, and the metal contacts 43 and 44 are connected to the conductive surface 41b,
41c. Therefore, a constant voltage Vcc appears at the terminal 48 connected to the metal contact 42 and becomes "H". In addition, conduction is established between the metal contacts 43 and 44, and one metal contact 44
Is grounded, the voltage level of the terminal 49 connected to the other metal contact 43 becomes low level "L". As a result, the photographing magnification display panel displays that the magnification of the photographing lens is 3.3 times based on the table of FIG. In the case of the other photographic lenses 51 and 52, the same magnification reading as described above can be performed based on the table of FIG.

When the photographic lens is not inserted, the constant voltages Vcc applied to the metal contacts 42 and 43 respectively appear on the terminals 48 and 49 as they are, and a set of "H" and "H" is set. As a result, it is displayed on the photographing magnification display panel that the photographing lens is not inserted.

As described above, according to the present embodiment, the conductive surfaces and the non-conductive surfaces indicating the respective magnifications are formed on the photographic lenses 41, 51, and 52 to be used, and these are provided in the trinocular tube 40. Since the electrical reading is performed by the metal contacts 42 to 44 and the signal processing circuit 45, the presence or absence of the photographic lens or the magnification thereof can be detected very easily as in the first embodiment. Next, a fourth embodiment of the present invention will be described with reference to FIGS.

FIG. 13 shows the configuration of a partial cross section of the trinocular tube portion. In the present embodiment, a magnetic band 61a as a magnification information holding unit is formed at a predetermined position in the optical axis direction on the outer peripheral surface of the photographing lens 61 inserted into the trinocular tube 60. The magnification of the lens is represented by the position where the magnetic band 41a is formed in the optical axis direction.

On the side wall of the trinocular tube 60, magnetic sensors 62, 6 are provided at respective positions where the magnetic bands of the respective photographic lenses face each other.
3 are provided. These magnetic sensors 62 and 63 detect the magnetic band forming position of each photographic lens.

The outputs of the magnetic sensors 62 and 63 are input to a signal processing circuit 64, and the processed "H" or "L" signal is transmitted via a connector 65 and a cable 66 to a photographic magnification display panel (not shown). Sent to In this embodiment, a magnification reading unit is constituted by the magnetic sensors 62 and 63, the signal processing circuit 64, and the like. FIG. 14 shows a circuit configuration of the signal processing circuit 64.

As shown in the figure, the signal processing circuit 64 includes terminals 67, 6 connected to the magnetic sensors 62, 63, respectively.
When the corresponding magnetic sensor detects magnetism (when the magnetic band is opposed to the magnetic sensor), an "L" signal is output from each of the terminals 67 and 68, and a corresponding magnetic signal is output. If the sensor fails to detect magnetism, it outputs an "H" signal.

FIG. 15 shows the formation positions of the magnetic bands of the photographic lenses 61, 71 and 72 having different magnifications. The photographic lens 61 has the magnetic band 61a formed at a position facing the magnetic sensor 62 as described above. The photographing lens 71 is provided with the magnetic sensor 6.
Magnetic strips 71a and 71b are formed at positions facing the magnetic strips 2 and 63, respectively. Furthermore, the photographing lens 72
A magnetic band 72a is formed at a position facing the magnetic sensor 63.

In this embodiment configured as described above, when the photographic lens 61 is inserted into the trinocular tube 60 as shown in FIG. 13, for example, the magnetic band 61a of the photographic lens 61 A magnetic detection signal is output from the magnetic sensor 62 so as to face the sensor 62. This magnetic detection signal is converted into an “L” signal from the terminal 67 by the signal processing circuit 64 and output. In addition, since the magnetism cannot be detected by the magnetic sensor 63, no magnetic detection signal is output, and a “H” signal is output from the terminal 67. The photographing magnification display panel converts a signal from the signal processing circuit 64 into a signal shown in FIG.
The conversion processing is performed based on the table shown in FIG. 6, and the corresponding magnification is displayed.

As described above, according to the present embodiment, a magnetic band is formed in each of the photographing lenses 61, 71, and 72 to be used at a position indicating each magnification, and the magnetic band is provided in the trinocular tube 60. Since the magnetic field is detected by 62 and 63, the presence or absence of the photographic lens or the magnification thereof can be detected very easily as in the first embodiment. The present invention is not limited to the above embodiments,
Various modifications can be made without departing from the spirit of the present invention.

[0042]

As described above in detail, according to the present invention, it is possible to provide a microphotographing apparatus in which the presence or absence and magnification of a photographing lens can be easily checked in a state where the apparatus is assembled.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a trinocular tube part of a microscope photographing apparatus according to a first embodiment of the present invention.

FIG. 2 is a side view of a trinocular tube part in the photomicrographing apparatus of the first embodiment.

FIG. 3 is a side view of a photographing lens used in the microscope photographing apparatus of the first embodiment.

FIG. 4 is a cross-sectional view showing a trinocular tube part of the microphotographing apparatus according to the second embodiment of the present invention.

FIG. 5 is a configuration diagram of a photoreflector and a signal processing circuit provided in the microphotographing apparatus of the second embodiment.

FIG. 6 is a side view of a photographing lens used in the microscope photographing apparatus of the second embodiment.

FIG. 7 is a view showing a conversion table in a photographing magnification display panel provided in the microphotographing apparatus of the second embodiment.

FIG. 8 is a cross-sectional view showing a trinocular tube part of the microscope photographing apparatus according to the third embodiment of the present invention.

FIG. 9 is a view showing a metal contact in a state where a photographic lens is not inserted.

FIG. 10 is a configuration diagram of a metal contact and a signal processing circuit provided in the photomicrographing apparatus of the third embodiment.

FIG. 11 is a side view of a photographing lens used in the microscope photographing apparatus of the third embodiment.

FIG. 12 is a view showing a conversion table in a photographing magnification display panel provided in the microscope photographing apparatus of the third embodiment.

FIG. 13 is a cross-sectional view showing a trinocular tube part of the microscope photographing apparatus according to the fourth embodiment of the present invention.

FIG. 14 is a configuration diagram of a magnetic sensor and a signal processing circuit provided in the microscope photographing apparatus of the fourth embodiment.

FIG. 15 is a side view of a photographing lens used in the microscope photographing apparatus of the fourth embodiment.

FIG. 16 is a view showing a conversion table in a photographing magnification display panel provided in the microphotographing apparatus of the fourth embodiment.

FIG. 17 is a diagram showing a conventional example of a microscope photographing apparatus.

18 is a view showing a state in which a photographic lens is inserted into a trinocular tube provided in the apparatus shown in FIG.

[Explanation of symbols]

10, 21, 40, 60 ... trinocular tube, 11, 22, 4
1, 61: photography lens, 12: magnification mark, 13
... window, 14 ... shield plate, 15 ... lever, 23 ... barcode, 24,25 ... photoreflector, 26,45,64
... Signal processing circuit.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G02B 21/00-21/36

Claims (1)

(57) [Scope of request for utility model registration] An eyepiece lens and a photographing device for observing an image.
Comprising a trinocular tube that leads respectively to the side, in the microscope photography apparatus that replaceably inserting the copy <br/> true imaging lens to the trinocular tube inside, the outer circumferential surface of the photographic lens Check the lens magnification
The tri-lens tube is provided with a detour mark, and the photographing lens is inserted into the trinocular tube.
Outside the mark facing portions of the lens in the state
A microscopic photographing device, characterized in that a window communicating with the microscope is provided .