JP4992583B2 - Light source device for microscope - Google Patents

Description

  The present invention relates to a light source device for a microscope that can be attached to and detached from a port portion of an illumination device such as a microscope.

2. Description of the Related Art Conventionally, a light source device attached to an illumination device of a microscope is configured so that various light source devices can be attached to and detached from a port portion of the illumination device because various light source devices such as a halogen lamp and a mercury lamp are selectively used. In order to prevent the lamp light from leaking from the light source device to the outside when the light source device is replaced, the power supply to the lamp is stopped by a hall element or a micro switch arranged at a position facing the port portion. Has been proposed (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-333045

  In the conventional light source device, when replacing the light source device, an electric circuit such as a dedicated hall element or micro switch is separately arranged at a position facing the port portion so that the lamp light does not leak outside from the light source device. Therefore, there are problems that the use temperature is limited and the control circuit and the like are expensive.

  In order to solve the above-mentioned problem, the present invention is a light source device for a microscope including a lamp house having a built-in lamp, and a lamp socket unit connected to the lamp house and electrically connecting the lamp to a power line, The light source device can be attached to and detached from the illumination port portion of the microscope, which is arranged in the lamp socket portion and which turns on / off the current to the lamp, and which is arranged in the lamp house and in which the light source device is mounted. At the time of attaching / detaching the microscope light source device to / from the port portion, the one end portion is interlocked with the attaching / detaching operation of the illumination port portion and the attaching / detaching portion, and the other end portion operates the switch. And an attachment / detachment interlocking member for turning on and off the switch at the other end corresponding to whether or not the one end is in contact with the port portion. Providing a mirror light source device.

  ADVANTAGE OF THE INVENTION According to this invention, the light source device which can prevent a lamp light leaking outside at the time of replacement | exchange of a light source device with a simple and cheap structure can be provided.

  A light source device according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
1A and 1B are cross-sectional views of a light source device according to a first embodiment, in which FIG. 1A shows a state where the light source device is attached to a port portion of the lighting device, and FIG. Each is shown.

  1A and 1B, the light source device 1 includes a lamp house 3 and a lamp socket portion 4, and the lamp socket portion 4 is screwed and fixed to the lamp house 3 with mounting screws 5. Two lamp terminals 7a and 7b are attached to the insulating member 6 fixed to the socket portion 4, and the lamp 8 is held by the lamp terminals 7a and 7b. A cable 9 a is connected to one terminal of the interlock switch 10 from the lamp terminal 7 a, and a cable 9 b is connected to the other terminal of the interlock switch 10. The cable 9c connected to the lamp terminal 7b is connected to a power supply device (not shown) through the connector 9 together with the cable 9c.

  The lamp house 3 is formed at a flange portion 3a connected to an illumination connection port portion 2 (hereinafter referred to as a connection port portion) of a microscope illumination device (not shown) and an outer diameter portion of the connection port portion 2. And a connection ring 3c having a screw portion 3b that is screwed into the screw portion 2a.

  Further, the lamp house 3 is pressed and fixed to the connection port portion 2 by the flange portion 3a of the lamp house 3 by the connection ring 3c, and the flange portion 3a is fitted to the connection port portion 2 and fixed.

  Further, inside the lamp house 3, a light source device attachment / detachment interlocking member 12 (hereinafter referred to as an attachment / detachment interlocking member) is held so as to be movable in a direction substantially parallel to the illumination optical axis I and has a substantially L-shaped cross section. A portion 12a is formed and is urged toward the connection port portion 2 by a coil spring (not shown). In this way, the light source device 1 is configured.

  In the light source device 1 according to the first embodiment, as shown in FIG. 1A, when the light source device 1 is connected and fixed to the connection port portion 2, one end portion 12b of the attachment / detachment interlocking member 12 is a flange portion. The other end 12c is disposed so as to press through the actuator 10a of the interlock switch 10 through 3a and abut against the end face of the connection port portion 2. As a result, when the light source device 1 is connected to the connection port portion 2, the attachment / detachment interlocking member 12 pushes down the actuator 10a of the interlock switch 10, turns the interlock switch 10 on, and the lamp 8 lights up.

  On the other hand, as shown in FIG. 1B, when the light source device 1 is removed from the connection port portion 2, the attachment / detachment interlocking member 12 is biased toward the connection port portion 2. The L-shaped portion 12a moves until it hits the inner wall of the lamp house 3 and protrudes from the flange portion 3a to the connection port portion 2 side. Is released, the interlock switch 10 is turned off and the lamp 8 is turned off.

  As described above, the light source device 1 according to the first embodiment has the attachment / detachment interlocking member 12 biased by a spring, so that the light source device 1 is detached from the connection port portion 2 of the illumination device such as a microscope. At this time, since the interlock switch 10 is turned off and the lamp 8 is turned off, it is possible to prevent the lamp light from being irradiated to the outside.

  Further, since the interlock switch 10 also serves as a switch used for detection of attachment / detachment of the lamp socket unit 4, it is not necessary to add a dedicated switch for attachment / detachment and a control circuit, so that it can be configured at a low price. .

  Further, since the interlock switch is mechanically turned on / off by moving the rod-like member, the mechanism is simple and can be used up to a high temperature.

  In the above description, the case where the one end portion 12b of the light source device attachment / detachment interlocking member 12 abuts on the surface of the connection port portion 2 that abuts on the flange portion 3a has been described. 2 may be disposed on the outer periphery of the light source device 2 so that the one end 12 of the light source device attachment / detachment interlocking member 12 abuts on the outer peripheral portion. Further, the light source device attachment / detachment interlocking member 12 is not limited to a rod-like member, and may be, for example, a plate shape.

(Second Embodiment)
Next, a light source device according to a second embodiment of the present invention will be described with reference to the drawings.

  2A and 2B show a cross section of the light source device according to the second embodiment. FIG. 2A shows a case where the light source device is removed from the light source device connection port portion, and FIG. 2B shows a case where the light source device connection port portion is connected. Each case is shown. In addition, the same code | symbol is attached | subjected and demonstrated to the member similar to 1st Embodiment.

  2A and 2B, the light source device 51 includes a lamp house 3 and a lamp socket portion 4, and the lamp socket portion 4 is fixed to the lamp house 3 with mounting screws 5. Two lamp terminals 7a and 7b are attached to the insulating member 6 fixed to the lamp socket portion 4, and the lamp 8 is held by the lamp terminals 7a and 7b. A cable 9 a is connected to one terminal of the interlock switch 10 from the lamp terminal 7 a, and a cable 9 b is connected to the other terminal of the interlock switch 10. The cable 9c connected to the lamp terminal 7b is connected to a power supply device (not shown) through the connector 9 together with the cable 9b.

  Since the lamp socket portion 4 is attached so as to be in close contact with the lamp house 3, the actuator (lever) 10 a of the interlock switch 10 is pushed down so that a current flows through the lamp 8 and lights up.

  Further, the lamp house 3 is engaged with a rectangular groove 22 a of a light source device connection port portion 22 (hereinafter referred to as a connection port portion) of a microscope illumination device (not shown), and the lamp house 3 is attached to the connection port portion 22. An engaging portion 23 is provided. At the end of the engaging portion 23, there is a groove portion 23a that supports the shutter 24 that shields the lamp light emitted from the opening 26 having the condenser lens 25 so as to be slidable in the vertical direction of FIG. Is provided. The shutter 24 engaged with the groove 23a is urged downward in FIG. 2A by a spring (not shown) so as to cover the opening 26 when the lamp house 3 is not attached to the connection port 22, and from the groove 23a. It is stopped with a limit pin 27 so as not to fall off. Thus, the light source device 51 according to the second embodiment is configured.

  In addition, the rectangular groove 22a of the connection port portion 22 is provided with a shutter release pin 28 that is caught by the end portion of the shutter 24 when the lamp house 3 is slid and mounted, and the shutter 24 is slid and retracted from the opening portion 26. It has been.

  In the light source device 51 according to the second embodiment, as shown in FIG. 2A, the light source device 51 is slid upward along the rectangular groove 22a and removed from the connection port portion 22 in order to replace the light source device 51. At this time, since the shutter 24 is urged in a direction to close the opening 26 by a coil spring (not shown), the shutter 24 moves until it hits the limiting pin 26 planted in the lamp house 3 to block the optical path, and the lamp light Outgoing from the device 51 to the outside can be prevented.

  Further, as shown in FIG. 2B, when the lamp house 3 is mounted while sliding on the connection port portion 22 and positioned at a predetermined position, the shutter 24 is moved above the opening portion 26 by the shutter release pin 28. It is retracted (FIG. 2 (b) above the paper surface), and it becomes possible to emit lamp light to the optical path of the illumination device.

  As described above, in the light source device 51 according to the second embodiment, when the light source device 51 is removed from the connection port portion 22, the shutter 24 closes the opening 26 of the light source device 51 and the lamp light leaks to the outside. Can not be.

  Further, since the light source device 51 can be replaced while the lamp 8 is lit, replacement of a light source device having a light source that takes a long time to stabilize after being lit, such as a mercury lamp, does not impair stability. Can be executed.

  Further, a special electric circuit for turning off the lamp 8 is not necessary, and a low price can be achieved.

  In addition, since the shutter 24 is automatically opened and closed by the biasing force of the spring when the lamp house 3 is slid when the lamp house 3 is attached or detached, it can be realized with a mechanically simple configuration.

  In the first embodiment and the second embodiment, when the lamp 8 is replaced, the interlock switch 10 is turned off by loosening the mounting screw 5 of the lamp socket portion 5 and removing the lamp socket portion 4. The lamp goes off.

  Moreover, it is also possible to arrange | position the edge part of an optical waveguide (for example, optical fiber) in a connection port part.

  The above-described embodiment is merely an example, and is not limited to the above-described configuration and shape, and can be appropriately modified and changed within the scope of the present invention.

Sectional drawing of the light source device concerning 1st Embodiment is shown, (a) shows the state with which the port part of the illuminating device was mounted | worn, (b) shows the state removed from the port part of the illuminating device, respectively. The cross section of the light source device concerning 2nd Embodiment is shown, (a) shows the case where it is removed from the light source device connection port part, (b) shows the case where it is connected to the light source device connection port part, respectively. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,51 Light source device 2,22 Microscope apparatus connection port part 3 Lamphouse 4 Lamp socket 5 Mounting screw 6 Insulating member 7 Lamp terminal 8 Lamp 9 Connector 10 Interlock switch 10a Actuator (lever)
12 Light source device attachment / detachment interlocking member 23 Engaging portion 24 Shutter 25 Condensing lens 26 Opening portion 27 Limiting pin 28 Shutter opening pin

Claims (2)

A light source device for a microscope, comprising: a lamp house having a built-in lamp; and a lamp socket part connected to the lamp house and electrically connecting the lamp to a power line,
A switch disposed in the lamp socket portion for turning on and off the current to the lamp;
An attachment / detachment unit that is arranged in the lamp house and allows the light source device to be attached to and detached from an illumination port part of a microscope to which the light source device is attached,
When attaching and detaching the microscope light source device to and from the port portion, one end portion is arranged to interlock with the attaching and detaching operation of the illumination port portion and the attaching and detaching portion, and the other end portion is arranged to operate the switch. A microscope light source device, wherein the other end portion has an attachment / detachment interlocking member for turning on and off the switch in correspondence with whether or not the portion is in contact with the port portion.   The light source device for a microscope according to claim 1, wherein the switch is also used as an interlock switch that operates when the lamp is replaced.

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