JP2008058824A - Light source device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light source device capable of preventing light emitted by a light source from being accidentally emitted. <P>SOLUTION: The light source device includes: a vertical illumination lamp house 8 that has a light source 11 inside and externally emits illumination light emitted by the light source 11; a detecting operation section 13 that is disposed in the vertical illumination lamp house 8, and performs a predetermined detecting operation by detecting the inserted or removed state of an insertion/removal pin 7c externally inserted or removed; and an emission setting mechanism 14 that, according to the predetermined detecting operation of the detecting operation section 13, brings the lamp house 8 into an emission state in which illumination light is emitted or a non-emission state in which illumination light is not emitted. In addition, the emission setting mechanism 14 has a shutter mechanism 30 that blocks or unblocks a guide-out optical path along which illumination light is guided out, and a linkage mechanism 40 that, when the insertion/removal pin 7c is not in a predetermined inserted state, brings the shutter mechanism 30 into a blocking state, linked with the predetermined detecting operation of the detecting operation section 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a light source device having a light source therein and including a light source unit main body that emits illumination light emitted from the light source to the outside, and in particular, the light source unit main body is detachably attached to an illumination device included in a microscope or the like. The present invention relates to a light source device.

  Conventionally, there is a lamp house as a light source device that can be attached to and detached from an illumination device included in a microscope. In general, a lamp house includes a lamp light source such as a halogen lamp or a mercury lamp or an LED light source, and a collector lens that collects illumination light emitted from the light source and directs it in the direction of the optical axis. The illumination light is emitted and supplied.

  In recent years, in the field of microscopes, systematization of device configurations has been promoted, and there are various types of microscope devices for each type such as an inverted microscope, an upright microscope, and a stereomicroscope, and for each of these biological and industrial uses. Therefore, various parts can be used in common. Accordingly, a user of the microscope can use one lamp house by alternately attaching and detaching, for example, between a plurality of microscope apparatuses.

JP 2000-235148 A JP 2002-72064 A JP-A-7-99002

  However, since the lamp house can be easily attached and detached by the user, the power source of the light source can be turned off when the lamp house is inadvertently removed while the light source is turned on or when the lamp house is removed. When it is inadvertently turned on, the illumination light emitted from the lamp house is irradiated to the surroundings, which not only causes discomfort to users who have directly viewed this illumination light, but also damages the eyes that have been directly viewed. There is a risk of giving.

  The present invention has been made in view of the above, and when the power source of the light source is turned on in a state where it is removed from the lighting device or the like, or when it is removed from the lighting device or the like while the power source of the light source is turned on Furthermore, it aims at providing the light source device which can prevent that the illumination light which a light source emits is inject | emitted outside.

  In order to solve the above-described problems and achieve the object, a light source device according to claim 1 has a light source inside, a light source unit main body that emits illumination light emitted from the light source to the outside, and the light source unit main body A detection operation unit that detects an insertion / removal state of an insertion / removal member that is inserted / removed from the outside and performs a predetermined detection operation; and the light source unit main body according to the predetermined detection operation includes the illumination light And an injection state setting unit for setting the injection state in which the illumination light can be emitted or the non-injection state in which the illumination light is not emitted.

  The light source device according to claim 2 is the light source device main body according to the invention, wherein the emission state setting unit is interlocked with the predetermined detection operation when the insertion / removal member is in a state other than the predetermined insertion state. In the non-injection state.

  A light source device according to a third aspect of the present invention includes the light source device according to the above-described invention, wherein the light source device includes a derivation optical system that is provided in the light source unit main body and guides the illumination light to the outside of the light source unit main body. A shutter mechanism that is disposed between or in the derivation optical system and between the derivation optical system and the light source and blocks or opens the derivation optical path from which the illumination light is derived, and the insertion / removal member is in a state other than the predetermined insertion state. The shutter mechanism is shut off in conjunction with the predetermined detection operation in a case, and the shutter mechanism is opened in conjunction with the predetermined detection operation in the case where the insertion / removal member is in the predetermined insertion state. And an interlocking mechanism.

  According to a fourth aspect of the present invention, in the above invention, the derivation optical system includes a plurality of lenses, and the shutter mechanism is disposed between the plurality of lenses. .

  In the light source device according to a fifth aspect of the present invention, in the above invention, the lead-out optical system uses a lens and one or more flat light transmitting members disposed on the opposite side of the light source with respect to the lens. The shutter mechanism is arranged between the lens and the flat light transmitting member or between the plurality of flat light transmitting members.

  The light source device according to claim 6 is the light source device according to the above invention, wherein the detection operation unit includes a rotating member that rotates about a predetermined axis according to an insertion / removal state of the insertion / removal member, and the rotation member. A rotation urging member that urges around the predetermined axis to rotate in one direction, the shutter mechanism includes a blade member that is inserted into and removed from the lead-out optical path, and the interlocking mechanism includes: A drive unit that engages with the blade member and reciprocates along an insertion / removal surface including an insertion / removal direction of the blade member, and is in pressure contact with the rotating member, A transmission unit that reciprocates the drive unit along the insertion / removal surface according to a rotation operation of the rotation member, and an urging unit that urges the transmission unit and presses the transmission unit against the rotation member It is characterized by having.

  According to a seventh aspect of the present invention, in the above invention, the light source device includes a power supply unit that supplies power to the light source, and the detection operation unit detects the predetermined insertion state of the insertion / removal member. And outputting an ON signal indicating the detection result, and the injection state setting unit is electrically connected to the detection operation unit and the power supply unit, and the ON signal is not output from the detection operation unit during the non-output period. The power supply unit is in a state in which power cannot be supplied, and the power supply unit is in a state in which power can be supplied during an output period in which the ON signal is output from the detection operation unit.

  The light source device according to claim 8 is characterized in that, in the above invention, the detection operation section outputs the ON signal when the insertion / removal member comes into contact.

  In the light source device according to claim 9, in the above invention, the insertion / removal member is provided on a surface portion of the illumination device to which the light source unit main body is detachably attached and facing the detection operation unit. It is projected, and when the light source part main body is attached to the lighting device, the predetermined insertion state is set.

  According to the light source device of the present invention, the light source emits when the light source is turned on while being removed from the illumination device or the like, or when the light source is removed from the illumination device or the like while the light source is turned on. The illumination light can be prevented from being emitted to the outside.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a light source device according to the present invention will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by this embodiment. Moreover, in description of drawing, the same code | symbol is attached | subjected and shown to the same part.

(Embodiment 1)
First, the light source device according to the first embodiment of the present invention will be described. FIG. 1 is a diagram illustrating an external configuration of a microscope using the light source device according to the first embodiment. The microscope shown in this figure is configured using a microscope main body 1, a stage 2, an objective lens 3, a transmission illumination device 4, a transmission lamp house 5, a condenser 6, an epi-illumination device 7, an epi-illumination lamp house 8, and an eyepiece 9. The system is an inverted microscope, and each of these parts is detachable.

  The microscope body 1 includes an imaging optical system and the like inside, and functions as a support frame that supports each part. The stage 2 is mounted on the microscope body 1 and holds the specimen S and moves it in a plane perpendicular to the observation optical axis OA. The objective lens 3 is arranged on the observation optical axis OA immediately below the stage 2, and the transmission illumination device 4 is arranged on the upper part of the stage 2 via a support column 4 a protruding from the microscope body 1. The transmission illumination device 4 includes a transmission illumination optical system (not shown) inside, and the sample S is irradiated with illumination light supplied from the transmission lamp house 5 through the condenser 6 by the transmission illumination optical system. The transmissive lamp house 5 is detachably attached to the end portion of the transmissive illumination device 4 and emits illumination light emitted from a light source provided therein to the transmissive illumination optical system.

  The epi-illumination device 7 includes an epi-illumination optical system (not shown) inside, and is mounted on the microscope main body 1 and disposed below the stage 2. The epi-illumination device 7 irradiates the specimen S with the illumination light supplied from the epi-illumination lamp house 8 through the objective lens 3 by the epi-illumination optical system. The epi-illumination lamp house 8 is detachably attached to the mount portion 7a of the epi-illumination device 7 projecting from the microscope body 1, and emits illumination light emitted from a light source provided therein to the epi-illumination optical system. The specimen S is illuminated by a transmission illumination optical system or an epi-illumination optical system, and an observation image is formed by the objective lens 3 and the imaging optical system. An observer can observe this observation image through the eyepiece 9.

  The light source device according to the first embodiment includes a transmissive lamp house 5 and an epi-illumination lamp house 8 serving as a light source unit main body, and a controller (not shown) that supplies power to the light sources included in the lamp houses. The transmissive lamp house 5 and the epi-illumination lamp house 8 are configured to emit illumination light to the outside only when they are attached to the corresponding transmissive illumination device 4 and the epi-illumination device 7 as normal operations. In other words, each lamp house is illuminated when the power supply to the light source is turned on with the lamp house removed from the corresponding lighting device, or when the lamp house is removed from the lighting device with the power supply to the light source turned on. Is configured not to be injected outside.

  Next, configurations of the transmissive lamp house 5 and the epi-illumination lamp house 8 will be described. However, since each lamp house has the same configuration, the epi-illumination lamp house 8 will be described as a representative here. 2 and 3 are cross-sectional views showing the configuration of the epi-illumination lamp house 8. FIG. FIG. 2 shows a state where it is removed from the mount portion 7a, and FIG. 3 shows a state where it is attached to the mount portion 7a.

  As shown in FIGS. 2 and 3, the incident lamp house 8 includes a light source 11 that emits illumination light and lenses 12a and 12b, and collects the illumination light emitted by the light source 11 and directs it in the direction of the illumination optical axis IA. 12, a detection operation unit 13 that detects the attachment / detachment state of the epi-illumination lamp house 8 with respect to the mount unit 7a and performs a predetermined detection operation, and an incident state in which the illumination light can be emitted from the epi-illumination lamp house 8 according to the detection operation Or it is comprised using the injection | emission state setting mechanism 14 which makes the non-injection state in which illumination light is not inject | emitted, and the housing | casing 15 holding these each component. The housing 15 is configured by using a heat sink 15a, a shutter seat 15b, and a mount portion 15c, and these parts are integrally formed by being fixed to each other by screws or the like (not shown).

  For example, an LED is used as the light source 11 and is fixed to the heat sink 15 a via the electric substrate 16. The heat sink 15a emits heat generated from the light source 11 or the electric substrate 16 to the outside. The light source 11 is electrically connected to a controller (not shown) via the electric board 16 and receives power supply from a power supply unit included in the controller. The controller can turn on and off the light source 11 by turning on the power supply to the light source 11 or turning it off. The light source 11 is not limited to an LED, and a lamp light source such as a halogen lamp or a laser diode (LD) can be used.

  As a lead-out optical system, the collector lens 12 converts illumination light emitted from each point of the light source 11 into a parallel light beam, and guides it to the outside through an opening 15d provided at the end of the mount 15c. When the epi-illumination lamp house 8 is attached to the mount portion 7a, the epi-illumination light 7 is emitted and supplied to the epi-illumination device 7 through the opening 15d. The lenses 12a and 12b constituting the collector lens 12 are inserted into through holes formed in the shutter seat 15b and the mount portion 15c, respectively, and are fixed by holding rings 17a and 17b. Here, the lens 12b is a cemented lens in which two lenses are cemented, and the collector lens 12 is configured as a two-group three-lens lens system by the lenses 12a and 12b. The lens configuration of the collector lens 12 need not be interpreted as being limited to this, and various lens configurations can be used according to the application.

  The detection operation unit 13 is configured by using a top 21, a rotation shaft 22, and a coil spring 23 (see FIG. 6 or FIG. 7), and is attached to the shutter seat 15b. The rotation shaft 22 is inserted into the top 21, and the top 21 is rotatable around the rotation shaft 22. The coil spring 23 is a torsion coil spring and is provided around the rotating shaft 22. One end of the coil spring 23 is fixed to the top 21, and the other end contacts the surface portion 15 g (see FIG. 6 or 7) of the shutter seat 15 b. It is touched. As a result, the coil spring 23 urges the piece 21 around the rotation shaft 22 and rotates it in one direction, specifically, rotates the counterclockwise in FIGS. 2 and 3.

  The top 21 is in a state where the epi-illumination lamp house 8 is removed from the mount portion 7a, and when the coil spring 23 has a natural length, as an initial state, as shown in FIG. Each normal is set so as to face the front and the center. Here, the front corresponds to the direction in which the epi-illumination lamp house 8 is attached to the mount portion 7a (left direction in FIG. 2), and the center direction refers to the direction (downward direction in FIG. 2) directed to the illumination optical axis IA. Equivalent to.

  Further, as shown in FIG. 3, the top 21 is in a state in which the incident lamp house 8 is attached to the mount portion 7a, and the insertion / removal pin 7c protruding from the surface portion 7b of the mount portion 7a is connected to the mount portion 7a. When it is inserted from the opening 15e provided in front of 15c, the side surface portion 21a is rotated by 90 ° from the initial state by being brought into contact with and pushed by the insertion / removal pin 7c. When the epi-illumination lamp house 8 is removed from the mount portion 7a and the insertion / removal pin 7c is removed from the opening portion 15e from this state, the top 21 rotates in accordance with the action exerted by the coil spring 23, as shown in FIG. Returns to the indicated initial state.

  In this way, the detection operation unit 13 changes the rotation position around the rotation shaft 22 of the top 21 by 90 ° depending on whether or not the incident lamp house 8 is attached to the mount unit 7a. In other words, the detection operation unit 13 detects the insertion / removal state of the insertion / removal pin 7c with respect to the housing 15 according to the attachment / detachment state of the epi-illumination lamp house 8 with respect to the mount 7a, and rotates the piece 21 as the detection result. A detection operation of rotating 90 ° around the shaft 22 is performed. The detection operation unit 13 is provided in the housing 15 and can be operated from the outside only through the opening 15e.

  The injection state setting mechanism 14 includes a shutter mechanism 30 configured using the shutter blades 31a and 31b, and an interlocking mechanism 40 configured using the engagement pin 41, the link 42, the tension spring 43, and the fixed plate 44. ing. The shutter mechanism 30 and the interlocking mechanism 40 are each attached to the shutter seat 15b.

  The shutter blades 31a and 31b are provided between the lenses 12a and 12b in the direction of the illumination optical axis IA, and are inserted into and removed from the illumination light guide optical path in accordance with the operation of the engagement pin 41. 4 and 5 are diagrams showing the operation state. FIG. 4 is a diagram showing a section taken along the line IV-IV in FIG. 2, and shows a state where the shutter blades 31a and 31b are inserted and arranged in the derived optical path as an initial state. FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 3 and shows a state where the shutter blades 31a and 31b are retracted from the derived optical path. Here, the derivation optical path of the illumination light is a passage optical path of the illumination light emitted from the light source 11 and emitted through the collector lens 12, and the effective diameter of the collector lens 12 is centered on the illumination optical axis IA. It is an optical path defined according to

  As shown in FIGS. 4 and 5, shaft pins 32a and 32b are inserted into the shutter blades 31a and 31b, respectively, and the shaft pins 32a and 32b project from the surface portion of the shutter seat 15b. As a result, the shutter blades 31a and 31b can be rotated with respect to the shutter seat 15b with the shaft pins 32a and 32b as rotation axes, respectively. The shutter blades 31a and 31b are respectively formed with elongated holes 33a and 33b in regions overlapped with each other in the direction of the illumination optical axis IA, and the engagement pin 41 penetrates the elongated holes 33a and 33b. It is disguised. As will be described later, the engaging pin 41 reciprocates with a predetermined stroke in the radial direction (vertical direction in FIGS. 4 and 5) with respect to the illumination optical axis IA in accordance with the attachment / detachment state of the incident lamp house 8 with respect to the mount portion 7a. It is provided to be operable.

  In the initial state shown in FIG. 4, that is, in the state where the epi-illumination lamp house 8 is removed from the mount portion 7a, the engaging pin 41 is positioned at the outer end portion (upper end portion in FIG. 4) in the movable stroke, and accordingly The shutter blades 31a and 31b are inserted and arranged in the derived optical path. On the other hand, in the state shown in FIG. 5, that is, in the state where the epi-illumination lamp house 8 is attached to the mount portion 7a, the engaging pin 41 is positioned at the inner end portion (lower end portion in FIG. 5) in the movable stroke. Accordingly, the shutter blades 31a and 31b are retracted from the derived optical path. In this way, the shutter blades 31a and 31b are rotated in opposite directions in a plane perpendicular to the illumination optical axis IA in accordance with the reciprocating motion of the engagement pin 41, and are inserted into and removed from the lead-out optical path. The

  Here, the shutter blades 31a and 31b have a shape and a shape so as to cooperate to block the entire area of the derived optical path when they are inserted and arranged in the derived optical path, and to open the entire area of the derived optical path when retracted from the derived optical path. The size is set. For this reason, the shutter mechanism 30 can reliably block or open the derived optical path by inserting and removing the shutter blades 31a and 31b in the derived optical path in accordance with the reciprocating operation of the engagement pin 41. The operation direction of the engagement pin 41 is not limited to the radiation direction with respect to the illumination optical axis IA, but is a direction along the insertion / removal surface including the insertion / removal direction of the shutter blades 31a, 31b with respect to the derived optical path, that is, the shutter blade 31a, Any direction along the blade surface 31b may be used.

  On the other hand, as shown in FIG. 2, in the interlocking mechanism 40, the engagement pin 41 protrudes from one end of a plate-like link 42, and the link 42 protrudes with its end bent near the engagement pin 41. Has been. The projecting portion 42a projects to the opposite side to the projecting direction of the engaging pin 41, and is in contact with the side surface portion 21b of the top 21 in the initial state shown in FIG. For this reason, when the epi-illumination lamp house 8 is attached to the mount 7a and the frame 21 is rotated by the insertion / removal pin 7c, the projection 42a is directed toward the illumination optical axis IA by the frame 21 as shown in FIG. Is pushed. The link 42 moves the engaging pin 41 in the pushing direction in accordance with the pushing operation of the projection 42a, and the engaging pin 41 passes the shutter blades 31a and 31b as described above. Evacuation drive.

  6 and 7 are perspective views showing configurations of the interlocking mechanism 40 and the detection operation unit 13. These drawings show a state in which the mount portion 15 c is removed from the incident lamp house 8. 6 shows an initial state corresponding to FIGS. 2 and 4, that is, a state where the epi-illumination lamp house 8 is removed from the mount portion 7a. FIG. 7 shows a state corresponding to FIGS. The lamp house 8 is attached to the mount 7a, and the insertion / removal pin 7c is inserted from the opening 15e.

  As shown in FIGS. 6 and 7, the link 42 is attached to the surface of the shutter seat 15b via a pin-shaped coupling member 45, and rotates around the coupling member 45 in the direction perpendicular to the illumination optical axis IA. It is possible to move. The fixing plate 44 is provided with a through hole that opens the lead-out optical path, and is fixed to the shutter seat 15 b in parallel with the link 42. One end of the tension spring 43 is engaged with the end portion 42 b of the link 42, and the other end is engaged with the end portion 44 a of the fixing plate 44, so that the tension spring 43 is always longer than the natural length.

  As a result, the tension spring 43 urges the end portion 42b in the compression direction thereof, and acts to rotate the link 42 counterclockwise in FIG. 6 and FIG. Press contact. Therefore, when the epi-illumination lamp house 8 is removed from the mount portion 7a, that is, when the insertion / removal pin 7c is removed from the state shown in FIG. 3 and FIG. 42a is brought into pressure contact with the frame 21, and the engagement pin 41 is moved in the pressure contact direction (the upward direction in FIGS. 3 and 7), and in response to this, the engagement pin 41, as described above, the shutter blade 31a, 31b is inserted into the lead-out optical path.

  In this way, the interlocking mechanism 40 reciprocates the engagement pin 41 with a predetermined stroke in accordance with the rotation operation of the top 21 that is rotated depending on whether or not the incident lamp house 8 is attached to the mount portion 7a. The shutter mechanism 30 is opened or shut off. In other words, the interlocking mechanism 40 is in a state in which the shutter mechanism 30 is shut off in conjunction with the rotational movement of the top 21 when the epi-illumination lamp house 8 is removed from the mount portion 7a and the insertion / removal pin 7c is removed from the housing 15. Let me. Further, the interlocking mechanism 40 opens the shutter mechanism 30 in conjunction with the turning operation of the frame 21 when the epi-illumination lamp house 8 is attached to the mount portion 7a and the insertion / removal pin 7c is inserted into the housing 15. Let it be in a state.

  As shown in FIGS. 6 and 7, the rotation shaft 22 in the detection operation unit 13 is laid in a V groove 15f (see FIG. 4 or FIG. 5) provided on the surface of the shutter seat 15b. In order not to drop off from the V-groove 15f, the plate-like pressing member 24 is held in two places. The holding member 24 is fixed to the surface portion of the shutter seat 15b with a screw or the like.

  As described above, the epi-illumination lamp house 8 included in the light source device according to the first embodiment is detached from the mount portion 7a of the epi-illumination device 7, and projects on the surface portion 7b of the mount portion 7a facing the top 21. When the provided insertion / removal pin 7c is removed from the housing 15 through the opening 15e, the shutter mechanism 30 is shut off by the detection operation unit 13 and the interlocking mechanism 40, and the illumination light emitted from the light source 11 is opened in the opening 15d. It will be in the non-injection state which is not injected from. Further, the epi-illumination lamp house 8 is attached to the mount portion 7a, and when the insertion / removal pin 7c is in a predetermined insertion state with respect to the housing 15, that is, an insertion state in which the top 21 is rotated, the detection operation portion 13 and the interlocking operation are performed. The shutter mechanism 30 is opened by the mechanism 40, and an emission state in which illumination light can be emitted from the opening 15d is obtained.

  Thereby, in the epi-illumination lamp house 8, when the power supply to the light source 11 is turned on while being removed from the epi-illumination device 7, or when being removed from the epi-illumination device 7 while the power supply to the light source 11 is on. In addition, the illumination light emitted from the light source 11 can be prevented from being emitted to the outside.

  In the epi-illumination lamp house 8, the opening portion 15e, which is a path for operating the detection operation unit 13, is set to a size that prevents an operator or the like from directly touching the detection operation unit 13 with a finger or the like. 30 can be prevented from being inadvertently opened by an operator or the like. Thereby, when the power supply to the light source 11 is turned on in the state of being detached from the epi-illumination device 7, it is possible to prevent the illumination light from being inadvertently emitted to the outside. A preferable size of the opening 15e is, for example, 12 mm or less in diameter so that the detection operation unit 13 cannot be directly touched with a finger or the like.

  In the epi-illumination lamp house 8, the shutter mechanism 30 is provided inside the housing 15 so that it cannot be directly touched from the outside. Therefore, the shutter mechanism 30 is opened directly by the operator or the like without the detection operation unit 13. It can be prevented from being brought into a state. For this reason, when the power supply with respect to the light source 11 is turned on in the state removed from the epi-illumination device 7, it can prevent that illumination light is inadvertently emitted outside. Note that, in the opening 15d, the path to the shutter mechanism 30 is blocked by the lens 12b, and access to the shutter mechanism 30 from the outside is prevented.

  The mechanism and operation of the episcopic lamp house 8 described so far are similarly applied to the transmissive lamp house 5, and the transmissive lamp house 5 has the same effect as the above-described episcopic lamp house 8. is there.

(Modification)
Next, a modification of the light source device according to the first embodiment will be described. In the epi-illumination lamp house 8 described above, the collector lens 12 is provided as a derivation optical system for deriving the illumination light emitted from the light source 11 to the outside. In addition to the collector lens 12, a flat light transmitting member such as an ND filter, A band pass filter, a dust-proof glass plate, etc. can be provided. For example, as shown in FIG. 8, the flat light transmitting member can be disposed on the side opposite to the light source 11 with respect to the collector lens 12, that is, on the emission side of the illumination light with respect to the collector lens 12. As a result, various filters and the like can be easily exchanged as the flat light transmitting member 18. Here, the flat light transmissive member 18 is fitted into the mount 15c through the opening 15d, and is fixed by the holding ring 17c.

  Further, by providing the flat light transmitting member 18 in this way, the shutter mechanism 30 and the interlocking mechanism 40 as the emission state setting mechanism 14 can be disposed between the collector lens 12 and the flat light transmitting member 18. it can. In this case, the path from the opening 15d to the shutter mechanism 30 is blocked by the flat light transmitting member 18, so that the shutter mechanism 30 is disposed in the collector lens 12, that is, between the lenses 12a and 12b. Access to the shutter mechanism 30 from the outside can be prevented.

  The flat light transmitting member 18 is not limited to one, and a plurality of flat light transmitting members 18 can be arranged. In this case, the emission state setting mechanism 14 may be disposed between the flat light transmitting members. Further, the emission state setting mechanism 14 can be arranged between the light source 11 and the collector lens 12 regardless of the presence or absence of the flat light transmitting member 18. In this case, since the shutter blades 31a, 31b and the like can be arranged at a position where the luminous flux diameter of the illumination light is relatively small, the emission state setting mechanism 14 can be reduced in size, and as a result, the incident lamp house 8 can be reduced in size. can do.

(Embodiment 2)
Next, a light source device according to a second embodiment of the present invention will be described. 9 and 10 are cross-sectional views illustrating the configuration of the light source device according to the second embodiment. As shown in these drawings, the light source device is configured by using a lamp house 50, a controller 51, and a cable 52. This light source device is a light source device applicable to the system inverted microscope shown in FIG. 1, and the lamp house 50 can be attached to the epi-illumination device 7 by replacing the epi-illumination lamp house 8, for example. 10 shows a state where the lamp house 50 is attached to the mount portion 7a of the epi-illumination device 7, and FIG. 9 shows a state where the lamp house 50 is detached from the epi-illumination device 7.

  The lamp house 50 includes a light source 11, a collector lens 12, a detection operation unit 53 that detects the attachment / detachment state of the lamp house 50 with respect to the mount unit 7 a and performs a predetermined detection operation, and a housing 55 that holds these components. It is comprised using. The casing 55 is configured by using a heat sink 55a and a mount portion 55b, and these are integrally formed by being fixed to each other by screws or the like (not shown). Here, the same components as those in the first embodiment are denoted by the same reference numerals.

  The detection operation unit 53 is configured using a micro switch or the like, and is provided in the mount unit 55b. The detection operation unit 53 includes an actuator unit 53a, and outputs an ON signal as a detection operation when the actuator unit 53a is operated by being pressed down by a predetermined amount. This ON signal is output to the controller 51 via a signal line 52 a provided in the cable 52.

  Here, the ON signal output by the detection operation unit 53 may be a signal transmitted by the detection operation unit 53 itself, or a signal supplied from the controller 51 as it is as a response signal. That is, the detection operation unit 53 may include a switch mechanism that forms an electrical contact with the controller 51 so that the electrical contact with the controller 51 can be opened and closed when a transmission signal is output as a response signal. .

  The actuator unit 53a can use various mechanisms such as a hinge / lever mechanism and a spring push button mechanism. Further, since the detection operation unit 53 is arranged in the mount unit 55b, it can be operated from the outside only through the opening 55e provided in the mount unit 55b.

  The controller 51 includes a power supply unit 51 a and a control unit 51 b, and is electrically connected to the detection operation unit 53 and the electric board 16 via the cable 52. The cable 52 includes signal lines 52a and 52b, and the controller 51 is electrically connected to the detection operation unit 53 and the electric board 16 through the signal lines 52a and 52b, respectively. The signal lines 52a and 52b are introduced into the housing 15 through through holes 55c provided in the heat sink 55a.

  The power supply unit 51a supplies power to the light source 11 through the electric board 16 under the control of the control unit 51b. The control unit 51b causes the power supply unit 51a to be in a state in which power can be supplied to the light source 11 or in a state in which power cannot be supplied, depending on whether an on signal is output from the detection operation unit 53. Specifically, the control unit 51b causes the power supply unit 51a to be unable to supply power during a non-output period in which no ON signal is output from the detection operation unit 53, and an output period in which the ON signal is output from the detection operation unit 53. In this case, the power supply unit 51a is brought into a state where power can be supplied. In other words, when the lamp house 50 is attached to the mount portion 7a, the insertion / removal pin 7c is brought into contact with the actuator portion 53a, and the actuator portion 53a is operated, the control portion 51b turns the power source portion 51a into the light source 11. The power supply is made possible.

  For this reason, in the light source device according to the second embodiment, even if a power switch (not shown) provided in the controller 51 is turned on in order to operate the power supply from the power supply unit 51a, the actuator unit 53a is activated and the detection operation is performed. Unless the ON signal is output from the unit 53, the light source 11 is not turned on and the illumination light is not emitted from the opening 55d. Accordingly, in this light source device, when the lamp house 50 is detached from the epi-illumination device 7, the power supply to the light source 11 is turned on, that is, the power switch is turned on, or the lamp house 50 is kept turned on. Can be prevented from being emitted to the outside when the light source 11 is removed from the epi-illumination device 7.

  Further, in the lamp house 50, similarly to the epi-illumination lamp house 8, the opening 55e, which is a path for operating the detection operation unit 53, cannot be directly touched by the finger or the like on the opening 55e. By doing so, it is possible to prevent the actuator unit 53a from being inadvertently operated by an operator or the like and outputting an ON signal. Thereby, when the power supply to the light source 11 is turned on with the lamp house 50 removed from the epi-illumination device 7, that is, when the power switch provided in the controller 51 is turned on, the illumination light is inadvertently generated. Injecting to the outside can be prevented.

  In addition, although the case where the lamp house 50 is attached to and detached from the epi-illumination device 7 has been described here, the same light source device is used when the lamp house 50 is attached to and detached from another illumination device including the insertion / removal pin 7c. There is an effect.

  So far, the best mode for carrying out the present invention has been described as the first and second embodiments. However, the present invention is not limited to the above-described first and second embodiments, and may be within the scope of the present invention. Various modifications are possible.

  For example, in the first and second embodiments described above, the detection operation units 13 and 53 detect the insertion state of the insertion / removal pin 7c according to the contact state of the insertion / removal pin 7c, but are inserted and removed in a non-contact manner. The insertion state of the pin 7c may be detected. As such non-contact detection means, for example, an optical sensor such as a photo interrupter, a magnetic sensor such as a Hall element, or the like can be used. In this case, a mechanism for rotating the top 21 according to the detection result of the non-contact sensor or a mechanism for transmitting an ON signal may be provided.

  In the first embodiment described above, a mechanism that opens and closes the two shutter blades 31a and 31b is used as the shutter mechanism 30. However, the shutter mechanism 30 is not limited to two, and the shutter that opens or closes one or more shutter blades is used. It is good also as a mechanism. Further, as described above, the shutter is not limited to a mechanism for rotating the shutter blades 31a and 31b around the shaft pins 32a and 32b and inserting / removing them in the derived optical path. For example, a lens shutter (iris) used in a single-lens reflex camera or the like. A shutter mechanism similar to the (aperture) or focal plane shutter can also be applied.

  In Embodiments 1 and 2 described above, the epi-illumination lamp house 8 and the lamp house 50 have been described as being attached to and detached from the epi-illumination device 7 in the direction of the illumination optical axis IA, but with respect to the illumination optical axis IA. It is good also as a structure made to attach or detach in a perpendicular direction. Furthermore, in Embodiment 1 and 2 mentioned above, the insertion / removal pin 7c is protruded in the attachment / detachment direction of the epi-illumination lamp house 8 and the lamp house 50, and the detection operation part 13 or 53 of the insertion / removal pin 7c is provided in the protrusion direction. Although the insertion state is to be detected, the attachment / detachment direction of the lamp house, the protruding direction of the insertion / removal pin 7c, and the detection direction of the detection operation unit do not necessarily need to be matched, and are appropriately changed according to the convenience of the assembly configuration, etc. It doesn't matter.

  In the first and second embodiments described above, the light source device according to the present invention has been described as being applied to a system inverted microscope. However, the present invention is not limited to an inverted microscope, and may be applied to an upright microscope, a stereomicroscope, and the like. it can. Furthermore, the present invention can be applied not only to a microscope but also to various devices that require a light source device.

It is a figure which shows the structure of the microscope using the light source device concerning Embodiment 1 of this invention. It is sectional drawing which shows the structure of the lamp house with which the light source device concerning Embodiment 1 of this invention is provided. It is sectional drawing which shows the state which attached the lamp house shown in FIG. 2 to the illuminating device. It is a front view which shows the shutter mechanism with which the lamp house shown in FIG. 2 is provided. It is a front view which shows the shutter mechanism at the time of attaching the lamp house shown in FIG. 2 to an illuminating device. It is a perspective view which shows the interlocking mechanism with which the lamp house shown in FIG. 2 is provided. It is a perspective view which shows the interlocking mechanism at the time of attaching the lamp house shown in FIG. 2 to an illuminating device. It is sectional drawing which shows the modification of the lamp house with which the light source device concerning Embodiment 1 of this invention is provided. It is sectional drawing which shows the structure of the lamp house with which the light source device concerning Embodiment 2 of this invention is provided. It is sectional drawing which shows the state which attached the lamp house shown in FIG. 9 to the illuminating device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microscope main body 2 Stage 3 Objective lens 4 Transmission illumination apparatus 4a Support | pillar part 5 Transmission lamp house 6 Condenser 7 Epi-illumination apparatus 7a Mount part 7b Surface part 7c Insertion / extraction pin 8 Epi-illumination lamp house 9 Eyepiece 11 Light source 12 Collector lenses 12a, 12b Lens 13 Detection Operation Unit 14 Injection State Setting Mechanism 15 Housing 15a Heat Sink 15b Shutter Seat 15c Mount 15d, 15e Opening 15f V Groove 15g Surface 16 Electric Substrate 17a-17c Press Ring 18 Flat Light Transmitting Member 21 Top 21a, 21b Side face part 22 Rotating shaft 23 Coil spring 24 Holding member 30 Shutter mechanism 31a, 31b Shutter blade 32a, 32b Shaft pin 33a, 33b Long hole 40 Interlocking mechanism 41 Engaging pin 42 Link 42a Projection part 42b End part 43 Tension Spring 44 Fixing plate 44a End 45 Coupling member 50 Lamp house 51 Controller 51a Power supply unit 51b Control unit 52 Cable 52a, 52b Signal line 53 Detection operation unit 53a Actuator unit 55 Housing 55a Heat sink 55b Mount unit 55c Through hole 55d, 55e Opening IA Illumination optical axis OA Observation optical axis S Sample

Claims (9)

A light source unit body having a light source inside and emitting illumination light emitted from the light source to the outside;
A detection operation unit which is provided in the light source unit main body and detects the insertion / removal state of the insertion / removal member inserted / removed from the outside, and performs a predetermined detection operation;
In accordance with the predetermined detection operation, the light source unit main body is set in an emission state in which the illumination light can be emitted or an emission state setting unit in which the illumination light is not emitted, and
A light source device comprising:   The said emission state setting part makes the said light source part main body into the said non-injection state in response to the said predetermined | prescribed detection operation when the said insertion / removal member is in a state other than a predetermined insertion state. The light source device described. Provided in the light source unit main body, comprising a derivation optical system for deriving the illumination light outside the light source unit main body,
The injection state setting unit
A shutter mechanism that is disposed between or in the derivation optical system between the derivation optical system and the light source, and blocks or opens a derivation optical path from which the illumination light is derived;
The shutter mechanism is shut off in conjunction with the predetermined detection operation when the insertion / removal member is in a state other than the predetermined insertion state, and the predetermined state when the insertion / removal member is in the predetermined insertion state An interlocking mechanism that opens the shutter mechanism in conjunction with a detection operation;
The light source device according to claim 2, comprising: The derivation optical system is configured using a plurality of lenses,
The light source device according to claim 3, wherein the shutter mechanism is disposed between the plurality of lenses. The derivation optical system is configured using a lens and one or more flat light transmitting members arranged on the opposite side of the lens from the light source,
The light source device according to claim 3, wherein the shutter mechanism is disposed between the lens and the flat light transmitting member or between the plurality of flat light transmitting members. The detection operation unit
A rotating member that rotates about a predetermined axis in accordance with an insertion / removal state of the insertion / removal member;
A rotation urging member that urges the rotating member around the predetermined axis to rotate in one direction;
Have
The shutter mechanism has a blade member that is inserted into and removed from the optical path.
The interlocking mechanism is
A drive unit that engages with the blade member and reciprocates along an insertion / removal surface including an insertion / removal direction of the blade member, thereby driving the blade member to be inserted / removed;
A transmission unit that is in pressure contact with the rotating member and reciprocates the drive unit along the insertion / removal surface according to the rotating operation of the rotating member;
An urging portion that urges the transmission portion and presses the transmission portion against the rotating member;
The light source device according to claim 3, wherein: A power supply unit for supplying power to the light source;
When the detection operation unit detects the predetermined insertion state of the insertion / removal member, the detection operation unit outputs an ON signal indicating the detection result,
The injection state setting unit is electrically connected to the detection operation unit and the power supply unit, and makes the power supply unit unable to supply power during a non-output period in which the ON signal is not output from the detection operation unit, The light source device according to claim 2, wherein the power supply unit is in a state in which power can be supplied during an output period in which the ON signal is output from the detection operation unit.   The light source device according to claim 7, wherein the detection operation unit outputs the ON signal when the insertion / removal member comes into contact.   The insertion / removal member is provided on a surface of a lighting device to which the light source unit main body is detachably attached and protrudes from a surface portion facing the detection operation unit, and the light source unit main body is attached to the lighting device. The light source device according to claim 2, wherein the light source device is placed in the predetermined insertion state.

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