JP2010186067A - Observation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an observation apparatus with a plurality of light emitters, which selectively uses the light emitters as a light source, and which easily replaces the plurality of light emitters themselves. <P>SOLUTION: The observation apparatus 1 includes an optical system 2 for observing a sample. The apparatus has an observation apparatus body 4 installed with an optical system 2, and a lighting unit 3 installed with the plurality of light emitters 12 used for the light source of the optical system 2. The lighting unit 3 is supported by the observation apparatus body 4 such that the desired light emitters 12 are selectively arranged in an illumination light path of the optical system 2 as the light source from the plurality of light emitters 12, and also provided removably from the observation apparatus body 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an observation apparatus provided with a plurality of light sources.

  Conventionally, there is an observation apparatus including an optical system for observing a sample, which includes a plurality of light emitting elements as light sources, and an arbitrary light emitting element can be selectively used as a light source from the plurality of light emitting elements ( For example, see Patent Document 1).

  This observation apparatus can easily change a light emitting element as a light source among a plurality of light emitting elements provided in advance.

JP 2003-195177 A

  However, such a conventional observation apparatus emits light because the light-emitting element is fixed to the observation apparatus when the light-emitting element is replaced when a light-emitting element other than a light-emitting element installed in advance is used. There was a problem that it took time to replace the element.

  Therefore, in view of such a conventional problem, the present invention is an observation apparatus that includes a plurality of light emitting elements and can selectively use these light emitting elements as a light source. It was made for the purpose of providing an observation apparatus that can be easily replaced.

  The feature of the observation apparatus according to the present invention for solving the conventional problems as described above and achieving the intended purpose is an observation apparatus including an optical system for observing a sample, wherein the optical system is An observation apparatus main body to be installed; and an illumination unit in which a plurality of light-emitting elements serving as light sources of the optical system are installed. The illumination unit uses the desired light-emitting element as a light source from the plurality of light-emitting elements. It is supported by the observation apparatus main body so that it can be selectively arranged in the illumination light path of the system, and is provided so as to be freely inserted into and removed from the observation apparatus main body.

  The observation apparatus according to the present invention is characterized in that, in addition to the above-described configuration, the illumination unit is supported by the observation apparatus main body so as to be rotatable about a rotation axis, and the light emitting element is disposed around the rotation axis. It is provided that the light emitting element can be selectively disposed in the illumination light path by rotating the illumination unit about the rotation axis.

  The observation apparatus according to the present invention is characterized in that, in addition to the above-described configuration, the plurality of light emitting elements are arranged side by side in the insertion / extraction direction of the illumination unit, and the illumination unit includes the illumination unit together with the light emitting element in the insertion / extraction direction. The light emitting element is supported by the observation apparatus main body so that the light emitting element can be selectively disposed in the illumination optical path.

  The observation apparatus according to the present invention is characterized in that, in addition to the above-described configuration, the observation apparatus main body includes a contact portion electrically connected to a power source therein, and the electrode 12a of each light-emitting element includes the illumination unit. When the illumination unit is inserted into the observation apparatus body and the desired light-emitting element is disposed in the illumination optical path, the electrode 12a of the desired light-emitting element is disposed on the contact point. By contacting the unit, power is supplied to the lighting unit.

  The observation apparatus according to the present invention is characterized in that, in addition to the above configuration, the illumination unit has an element information holding unit that holds information on the light emitting element, and the observation apparatus body is inserted into the illumination optical path. An element recognition unit for recognizing information on the light emitting element being used from the element information holding unit; and a power control unit for supplying power in accordance with the light emitting element based on the information on the light emitting element. .

  Since the observation apparatus according to the present invention can be selectively disposed in the illumination optical path using a plurality of light emitting elements as light sources, the sample can be observed by easily switching between the plurality of light sources. In addition, since the illumination unit itself is detachably attached to the observation apparatus body, the illumination unit itself can be easily replaced, and observation using various light sources can be easily performed with one observation apparatus. Is possible.

  Embodiments of an observation apparatus according to the present invention will be described below in detail with reference to the drawings. In the drawings, the X-axis direction is the left-right direction of the observation apparatus, the Y-axis direction is the front-rear direction of the observation apparatus, and the Z-axis direction is the up-down direction of the observation apparatus. The positive direction of the Y axis is the front side of the observation apparatus.

(Embodiment 1)
1 to 7 show Embodiment 1 of the present invention. The observation apparatus in the present embodiment is a microscope 1. The microscope 1 includes an optical system 2 for observing a sample, an illumination unit 3, and a microscope main body 4 (observation apparatus main body). The optical system 2 may be an optical system similar to the optical system provided in the conventional microscope 1. The optical system 2 is for irradiating a sample with light emitted from a light source and observing the reflected light. The optical system 2 includes an eyepiece 2a, a condenser lens 2b, an objective lens (not shown), and the like. The optical system 2 is installed in the microscope body 4.

  The microscope main body 4 is formed in a substantially U shape when viewed from the right side, and includes a base portion 4a, a column portion 4b, an arm portion 4c, a stage portion 4d, and an observation portion 4e. The base portion 4a is a portion that is directly placed on the place where the microscope 1 is installed, and is formed in a substantially rectangular parallelepiped shape. The column part 4 b is erected on the back side of the base part 2. The arm portion 4 c is a portion that extends from the upper end of the column portion 3 toward the front side of the microscope 1. An observation part 4e is formed on the upper part of the front side of the microscope body 4 of the arm part 4c. Eyepieces 2a and 2a are installed in the observation unit 4e.

  The stage 4d is supported by the pillar portion 4b and is disposed between the arm portion 4c and the base portion 4a on the front side of the pillar portion 4b. The stage 4d is a part where a sample to be observed is placed. A sample is placed on the upper surface of the stage 4d.

  The illumination unit 3 is installed on the base portion 4 a of the microscope body 4 so as to be freely inserted into and removed from the microscope body 4. The illumination unit 3 includes a unit main body 11 and a plurality of light emitting elements 12 that are light sources of the optical system 2. The unit body 11 is formed in a quadrangular prism shape, and one end side in the length direction is an operation unit 11a. A plurality of light emitting elements 12 are installed on the other end side in the length direction of the unit main body 11.

  The light emitting element 12 is arranged in the unit main body 11 so as to emit light from the side surface side of the unit main body 11. Moreover, the light emitting element 12 is installed for every side surface of the unit main body 11, and is arrange | positioned at the periphery. That is, in the first embodiment, the unit main body 11 is formed in a prismatic shape and has four side surfaces, and thus includes four light emitting elements 12. Each light emitting element 12 has a different emission spectrum. The electrode 12 a of each light emitting element 12 is disposed so as to be exposed on the side surface of the unit body 11. The electrodes 12a of the light emitting elements 12 are exposed on different side surfaces of the unit main body 11, respectively.

  A concave portion 13 is formed on each side surface of the unit body 11 so as to correspond to each light emitting element 12. The concave portion 13 is fitted with a convex portion 25 formed on a unit support member 23 described later. On the side of the operation unit 11 a on each side of the unit body 11, an element information display unit 14 is formed on each side so as to correspond to each light emitting element 12. The element information display unit 14 displays information such as the standard of the light emitting element 12.

  The microscope main body 4 has an illumination unit installation part 21. The illumination unit installation portion 21 is a portion where the illumination unit 3 is inserted and installed, and includes a unit insertion hole 22, a unit support member 23, and a contact portion 24. The unit insertion hole 22 is opened on the side surface of the base portion 4 a of the microscope body 4, and the illumination unit 3 is inserted into the microscope body 4 from the unit insertion hole 22. The unit insertion hole 22 is opened such that its opening is circular.

  The unit support member 23 is installed inside the base portion 4 a of the microscope body 4. The unit support member 23 is formed in a substantially L shape, the upper end side is fixed to the microscope main body 4, and the illumination unit 3 is placed on the lower upper surface 23a. A convex portion 25 is formed on the lower upper surface 23 a of the unit support member 23. When the illumination unit 3 is installed in the microscope main body 4, if the desired light emitting element 12 is disposed at the starting point of the illumination optical path on the optical axis L of the optical system 2 so as to be a light source of the optical system 2, a unit support member The convex part 25 of 23 fits into the concave part 13 of the illumination unit 3, and a click feeling is produced. By this click feeling, the operator recognizes that the illumination unit 3 is disposed at an appropriate position. The illumination optical path is an optical path from the time when the light emitted from the light source passes through the condenser lens 2b and is irradiated to the sample arranged on the stage 4d.

  The contact portion 24 includes a metal connection terminal 24a. The connection terminal 24a is disposed so as to be exposed in a space in which the illumination unit 3 of the microscope body 4 is inserted. When the illumination unit 3 is installed, the connection terminal 24a is in contact with the electrode 12a of the light emitting element 12 and is electrically connected. Is done. The connection terminal 24 a is connected to the light emitting element driving unit 26, and power is supplied to the light emitting element 12 through the light emitting element driving unit 26. The light emitting element driving unit 26 is installed in the microscope main body 4 and controls power to the light emitting element 12. The light emitting element driving unit 26 is connected to the microscope power source unit 27. The microscope power supply unit 27 is connected to an external power supply and supplies power to the motorized portion of the microscope 1.

  When the illumination unit 3 is installed in the microscope body 4, a desired light emitting element 12 is selectively arranged at a position where the illumination light path on the optical axis L is the starting point. That is, among the light emitting elements 12 installed on each side surface of the unit main body 11, the light emitting element 12 disposed on a desired one side surface is disposed in the illumination light path. Note that the phrase “the light emitting element 12 is disposed in the illumination optical path” means that the light emitting element 12 is disposed at a position that is a light source of the optical system 2.

  The illumination unit 3 is supported by the inner surface of the unit insertion hole 22 and the unit support member 23 when installed in the microscope body 4. The illumination unit 3 extends in the length direction of the unit main body 11 and is supported by the microscope main body 4 so as to be rotatable around a rotation axis passing through the circumferential center of the light emitting elements 12 arranged circumferentially. . Since the lighting unit 3 includes a plurality of light emitting elements 12 around the rotation axis of the lighting unit 3, rotating the lighting unit 3 around the rotation axis causes the light emitting element 12 to also rotate around the rotation axis. The light emitting element 12 as the light source of the optical system 2 can be replaced.

  Further, when the lighting unit 3 is installed, the concave portion 13 of the lighting unit 3 and the convex portion 25 of the unit support member 23 are fitted, so that even if a slight impact is applied to the lighting unit 3, the lighting unit 3 3 can be prevented from shifting from a predetermined position of the microscope body 4. Therefore, the non-lighting of the light emitting element 12 due to the contact between the electrode 12a of the light emitting element 12 and the connection terminal 24a of the microscope body 4 being displaced can be prevented.

  When installing the illumination unit 3 in the microscope body 4, the illumination unit 3 is inserted into the unit insertion hole 22 from the other end in the length direction of the unit body 11. At this time, it can be seen that the lighting unit 3 is disposed at a predetermined position by the click feeling generated by fitting the convex portion 25 of the unit support member 23 and the concave portion 13 of the lighting unit 3. The predetermined position is a position where the desired light emitting element 12 is disposed in the illumination optical path. When the illumination unit 3 is disposed at a predetermined position, the electrode 12a corresponding to the desired light emitting element 12 is brought into contact with the connection terminal 24a and is electrically connected. Then, power is supplied to the desired light emitting element 12, and the desired light emitting element 12 emits light. The light emitted from the desired light emitting element 12 passes through the condenser lens 2b of the optical system 2 and is irradiated onto the sample. And the reflected light of the light irradiated to this sample is observed through the eyepiece 2a of the optical system 2.

  When the illumination unit 3 is installed on the microscope body 4, the operation unit 11 a and the element information display unit 14 of the illumination unit 3 are exposed from the microscope body 4. By visually observing the element information display unit 14, it is possible to confirm the standard of the light emitting element 12 arranged in the illumination optical path.

  Moreover, when using the other light emitting element 12 with which the illumination unit 3 was equipped as a light source, by pinching the operation part 11a of the illumination unit 3 and rotating the illumination unit 3 centering on a rotating shaft, other light emission is carried out. Element 12 can be placed in the illumination path. At this time, a click feeling is generated by fitting the concave portion 13 corresponding to the light emitting element 12 to be replaced with the convex portion 25 of the unit support member 23, and it is understood that the other light emitting elements 12 are arranged at predetermined positions. . In that case, naturally, the electrode 12a corresponding to the other light emitting element 12 is connected to the connection terminal 24a, and power is supplied to the other light emitting element 12. Moreover, when using the other illumination unit 3, the illumination unit 3 installed in the microscope main body 4a is removed, and the other illumination unit 3 is inserted.

  When observing a sample, the microscope 1 can selectively use a desired light-emitting element 12 as a light source from a plurality of types of light-emitting elements 12 provided in the illumination unit 3. Therefore, observation can be performed by easily switching a plurality of types of light sources. Moreover, since the illumination unit 3 is detachably provided in the microscope 1, the illumination unit 3 itself can be easily replaced.

  In the first embodiment, the unit body 11 is formed in a quadrangular prism shape, but may be a polygonal column shape or a cylindrical shape. At this time, the light emitting elements 12 may be arranged side by side in the rotation direction of the illumination unit 3 and the insertion / extraction direction of the illumination unit 3. In the first embodiment, one light emitting element 12 is used as one light source, but a plurality of light emitting elements 12 may be used as one light source.

  In the first embodiment, the optical system 2 is for observing the reflected light of the light irradiated on the sample, but may be a so-called fluorescent illumination optical system 2. In that case, the light emitting element 12 used as the light source of the optical system 2 is also used for fluorescent illumination.

(Embodiment 2)
FIG. 8 shows a second embodiment of the present invention. Hereinafter, the same reference numerals are given to the same parts as those described in the first embodiment, and the description will be omitted.

  The microscope (observation apparatus) 41 in the second embodiment has an optical system 2, an illumination unit 31, and a microscope main body (observation apparatus main body) 4.

  The illumination unit 31 includes a unit main body 11 and a plurality of light emitting elements 12 serving as light sources for the optical system. The light emitting element 12 is installed in the unit main body 11 similarly to the illumination unit 3 of the first embodiment. The lighting unit 31 includes an element information holding unit 32. The element information holding unit 32 is installed in the unit main body 11. The element information holding unit 32 is provided for each light emitting element 12 and holds information of the corresponding light emitting element 12. The element information holding unit 32 transmits information on the held light emitting elements 12 to an element information reading unit 33 (element recognition unit) described later. The element information holding unit 32 is installed so as to be exposed on each side surface of the unit main body 11 corresponding to each light emitting element 12. The element information holding unit 32 holds information on the light emitting element 12 arranged on the same side surface as the side on which the element holding unit 32 is arranged in the unit main body 11. Note that an IC tag may be used as the element information holding unit 32.

  In the second embodiment, the element information reading unit 33 is installed in the unit installation unit of the base unit 4 a of the microscope body 4. The information on the light emitting element 12 held in the element information holding unit 32 of the illumination unit 31 is read by the element information reading unit 33. The element information reading unit 33 is connected to the light emitting element driving unit 26 and transmits the read information of the light emitting element 12 to the light emitting element driving unit 26. The light emitting element driving unit 26 controls the power output to the light emitting element 12 based on the information of the light emitting element 12 sent from the element information reading unit 33.

  When the illumination unit 31 is installed in the microscope body 4, the element information holding unit 32 corresponding to the light emitting element 12 disposed in the illumination optical path is disposed opposite to the element information reading unit 33 of the microscope body 4, and the element information The information of the light emitting element 12 held in the holding unit 32 can be read. Therefore, information of the light emitting element 12 installed as a light source in the illumination optical path is read by the element information reading unit 33.

  The observation apparatus of the second embodiment has the same effect as that of the first embodiment because the main part has the same configuration as that of the first embodiment. Further, it has an element information holding unit 32 and an element information reading unit 33, transmits information of the light emitting element 12 to the light emitting element driving unit 26, and adjusts the information to the light emitting element 12 arranged in the illumination optical path based on the information. Power can be supplied. Therefore, even when the rated specifications of the light emitting elements 12 installed on the respective surfaces are different, the failure of the light emitting elements 12 can be prevented.

(Embodiment 3)
FIG. 9 shows Embodiment 3 according to the present invention. Hereinafter, the same reference numerals are given to the same parts as those described in the first embodiment, and the description will be omitted.

  The microscope (observation apparatus) in the third embodiment is the same as the first embodiment except for the illumination unit. The lighting unit 51 in the third embodiment includes a unit main body 11 and a plurality of light emitting elements 12.

  In the third embodiment, the arrangement position of the light emitting elements 12 in the illumination unit 51 is different from that in the first embodiment. In the third embodiment, not only the light emitting elements 12 are arranged on the respective side surfaces of the unit main body 11 as in the first embodiment, but the light emitting elements 12 are arranged in the insertion / extraction direction of the illumination unit 51 on the side surfaces of the unit main body 11. It is also installed side by side. Therefore, the light emitting element 12 arranged in the illumination optical path can be switched by the insertion depth of the illumination unit 51 with respect to the microscope body 4.

  The electrodes 12 a of the light emitting elements 12 aligned in the insertion / extraction direction of the illumination unit 51 are also arranged on the side surface of the unit body 11 so as to be aligned in the insertion / extraction direction of the illumination unit 51. Therefore, by moving the illumination unit 51 in the insertion / extraction direction, the electrode 12a of the light emitting element 12 that is in contact with the connection terminal 24a can also be switched.

  A plurality of recesses 13 formed in the unit main body 11 are also arranged on the side surface of the unit main body 11 so as to be aligned in the insertion / extraction direction corresponding to the light emitting elements 12 aligned in the insertion / extraction direction. Therefore, when the lighting unit 51 is moved in the insertion / extraction direction and the light emitting element 12 is switched, a click feeling is generated, and it can be recognized that the desired light emitting element 12 is arranged in the illumination optical path.

  The observation apparatus of the third embodiment has the same effect as that of the first embodiment because the main part has the same configuration as that of the first embodiment. Further, since the light emitting elements 12 can be switched between the rotation direction and the insertion / extraction direction, the number of switchable light emitting elements 12 provided in the illumination unit 51 can be increased.

(Embodiment 4)
FIG. 10 shows Embodiment 4 of the present invention. Hereinafter, the same reference numerals are given to the same parts as those described in the first embodiment, and the description will be omitted.

  The microscope (observation apparatus) in the fourth embodiment is the same as the first embodiment except for the illumination unit. The illumination unit 61 in the fourth embodiment includes a unit main body 11 and a plurality of light emitting elements 12.

  Furthermore, the lighting unit 61 has a protective cover 62 that covers the periphery of the unit main body 11. The protective cover 62 is formed so as to cover the unit main body 11, and a portion corresponding to the electrode 12 a of the light emitting element 12 is a hole 63, and the electrode 12 a of the light emitting element 12 and the microscope main body 4 are connected to each other. The terminal 24a can be contacted. Further, a portion of the protective cover 62 corresponding to the light emitting element 12 is a protective film 64 that allows the illumination light to pass therethrough so as not to block the illumination light emitted from the light emitting element 12. The protective cover 62 is made of an antistatic material.

  The observation apparatus of the fourth embodiment has the same effect as that of the first embodiment because the main part has the same configuration as that of the first embodiment. Moreover, since the protective cover 62 is attached to the unit main body 11, the illumination unit 61 can prevent a user from contacting the light emitting element 12 directly, and occurs when the user touches the light emitting element 12. It is possible to prevent the light emitting element 12 from being damaged by static electricity.

(Embodiment 5)
11 to 12 show the fifth embodiment of the present invention. Hereinafter, the same reference numerals are given to the same parts as those described in the first embodiment, and the description will be omitted.

  The microscope (observation apparatus) in the fifth embodiment is the same as the first embodiment except for the illumination unit. The illumination unit 71 in the fifth embodiment includes a unit main body 11 and a light emitting element 12.

  The illumination unit 71 of the fifth embodiment has a protective cover 72 that covers the periphery of the unit body 11. The protective cover 72 is formed so as to cover the unit main body 11. In the protective cover 72, a portion corresponding to the electrode 12 a of the light emitting element 12 is formed with a hole to be an electrode hole 73. By this electrode hole 73, the electrode 12a of the light emitting element 12 and the connection terminal 24a of the microscope body 4 can come into contact with each other. Further, a portion of the protective cover 72 corresponding to the light emitting element 12 is also formed with a hole 74 so as not to block the illumination light emitted from the light emitting element 12. Naturally, the hole 73 for electrodes and the hole 74 for illumination are formed in each side surface corresponding to the light emitting element 12 installed in each side surface of the unit main body 11. FIG. The protective cover 72 is made of an antistatic material.

  The unit body 11 is provided with a protective door 75 that opens and closes the electrode hole 73 and the illumination hole 74. The protective door 75 includes an electrode door portion 75a that opens and closes the electrode hole 73, an illumination door portion 75b that opens and closes the illumination hole 74, a connecting portion 75c, and a contact portion 75d. The connecting portion 75c is a portion that integrally connects the electrode door portion 75a and the illumination door portion 75b. The contact portion 75 d is a portion that contacts the microscope body 4 when the illumination unit 71 is inserted into the microscope body 4.

  The protective door 75 is entirely installed in the unit body 11 so as to be slidable with respect to the unit body 11. Further, the protective door body 75 slides in the insertion / extraction direction of the illumination unit 71. As the protective door 75 slides, the electrode hole 73 and the illumination hole 74 open and close simultaneously.

  The lighting unit 71 includes a protective door body opening / closing mechanism 76. The protective door body opening / closing mechanism 76 includes a contact portion 75 d provided in the protective door body 75, an urging portion 77 installed in the unit main body 11, and a spring 78. The spring 78 is installed between the abutting portion 75d and the urging portion 77, and urges the protective door body 75 in the closing direction with respect to the unit main body 11.

  When the illumination unit 71 is inserted into the microscope body 4, the contact portion 75 d of the protection door body 75 corresponding to the light emitting element 12 used as the light source is brought into contact with a protection door push-out portion (not shown) provided in the microscope body 4. The If the lighting unit 71 is further inserted as it is, the protective door body 75 is pushed by the protective door push-out portion, and the protective door body 75 is opened in the direction in which the electrode hole 73 and the illumination hole 74 are opened. Start moving relative to. When the illumination unit 71 is inserted to a predetermined position as it is, the electrode hole 73 and the illumination hole 74 are opened. Therefore, when the illumination unit 71 is installed in the microscope body 4, the electrode hole 73 and the illumination hole 74 are opened, and the electrode 12a and the connection terminal 24a come into contact with each other. In addition, illumination light emitted from the light emitting element 12 also enters the optical system 2 through the illumination hole 74.

  When the illumination unit 71 is removed from the microscope body 4, the protective door body 75 is biased in the closing direction, so that the protective door body 75 slides in the closing direction, and the electrode hole 73 and the illumination hole 74 are moved. The state is closed. Accordingly, the electrode hole 73 and the illumination hole 74 are closed by the protective door 75 before the illumination unit 71 is installed in the microscope body 4, and the user's finger or the like is externally attached to the light emitting element 12 and the light emitting element 12. This prevents contact with the electrode 12a.

(Modification)
In the first embodiment, in order to generate a click feeling in the lighting unit 3 and the unit support member 23, the concave portion 13 is provided in the unit main body 11 and the convex portion 25 is provided in the unit support member 23. Instead of the convex portion 25, a click feeling may be generated using a magnet. That is, as shown in FIGS. 13 to 14, a magnet 82 may be installed in the unit main body 11 instead of the recess 13, and a magnet 83 may be installed in the unit support member 23 instead of the projection 25.

  When the illumination unit 3 is installed on the microscope body 4, the magnet 82 and the magnet 83 are attracted to generate a click feeling, and it can be seen that the illumination unit 3 is installed at a predetermined position. In addition, when the illumination unit 3 is rotated, the magnets 82 installed on the respective surfaces of the unit body 11 and the magnets 83 installed on the unit support member 23 are attracted to each other so that a click feeling is generated. ing. Therefore, it can be seen that the illumination unit 3 is arranged in a predetermined arrangement. The first modification can be applied to each of the above-described embodiments and modifications in addition to the first embodiment.

(Modification 2)
In each of the above-described embodiments and modifications, the connection terminal 24a of the contact portion 24 uses a metal plate 90 as shown in FIG. You may make it provide. The curved portion 90a is fixed at one end side and is formed in an arch shape from one end side to the other end side. The other end of the bending portion 90a is a free end, and the bending portion 90a has a spring property.

  When the illumination unit 3 is installed in the microscope main body 4a, the arched convex side of the curved portion 90a is brought into contact with the electrode 12a of the illumination unit 3 and is electrically connected. At this time, due to the spring property of the bending portion 90a, the bending portion 90a is urged in a direction in which the bending portion 90a comes into contact with the electrode 12a. Further, when the lighting unit 3 is rotated, the bending portion 90a is pushed by the lighting unit 3 and displaced in a direction away from the lighting unit 3 at one end, that is, in a direction in which the arched convex side is recessed. In addition, when the light emitting element 12 is disposed in the illumination optical path, the displacement of the bending portion 90 a returns to its original state and comes into contact with the electrode 12 a corresponding to the light emitting element 12. Therefore, the illumination unit 3 can be smoothly rotated and the connection terminal 24a and the electrode 12a can be reliably contacted. The second modification can be applied to each of the above-described embodiments and modifications in addition to the first embodiment.

(Modification 3)
Further, as shown in FIG. 16, in the first embodiment, a spring 91 may be provided between the contact portion 24 and the microscope body 4. The spring 91 biases the connection terminal 24 a in a direction in which the connection terminal 24 a is in contact with the electrode 12 a of the lighting unit 3. Therefore, when the illumination unit 3 installed in the microscope body 4 is rotated, the contact portion 24 is pushed by the illumination unit 3 and is displaced in a direction away from the illumination unit 3 at one end. After that, when the light emitting element 12 is arranged in the illumination optical path, the contact portion 24 returns to the original position and comes into contact with the electrode 12 a corresponding to the light emitting element 12. As described above, by providing the spring 91 between the contact portion 24 and the microscope body 4, the contact between the connection terminal 24 a and the electrode 12 a can be ensured. The third modification can be applied to each of the above-described embodiments and modifications in addition to the first embodiment.

It is a perspective view which shows the observation apparatus in Embodiment 1 of this invention. It is a perspective view which shows the illumination unit with which the observation apparatus same as the above was equipped. It is a front view which shows the principal part of an observation apparatus same as the above. It is a front view which shows the principal part of an observation apparatus same as the above. It is a partial side view which shows the illumination unit installation part of the observation apparatus same as the above. It is a side view which shows the unit support member in an observation apparatus same as the above. It is a front view which shows the unit support member in an observation apparatus same as the above. It is a sectional side view which shows the recessed part provided in the illumination unit in the observation apparatus same as the above. It is a front view which shows the principal part of the observation apparatus in Embodiment 2 of this invention. It is a side view which shows the illumination unit in Embodiment 3 of this invention. It is a side view which shows the illumination unit in Embodiment 4 of this invention. It is a side view which shows the illumination unit in Embodiment 5 of this invention. It is explanatory drawing explaining a motion of the protection door body in an illumination unit same as the above. It is explanatory drawing explaining a motion of the protection door body in an illumination unit same as the above. It is a side view which shows the unit support member in the modification 1 of this invention. It is a front view which shows a unit support member same as the above. It is a sectional side view which shows an illumination unit same as the above. It is a perspective view which shows the principal part of the modification 2 of this invention. It is a front view which shows the principal part of the modification 3 of this invention.

L Optical axis 1 Microscope (observation device)
2 Optical system 3 Illumination unit 4 Microscope body (observation device body)
DESCRIPTION OF SYMBOLS 11 Unit main body 12 Light emitting element 12a Electrode 22 Unit insertion hole 23 Unit support member 24a Connection terminal 26 Light emitting element drive part 27 Microscope power supply part

Claims (5)

An observation apparatus equipped with an optical system for observing a sample,
An observation apparatus main body on which the optical system is installed;
An illumination unit in which a plurality of light emitting elements serving as light sources of the optical system are installed;
The illumination unit is supported by the observation apparatus main body so that a desired light emission element from the plurality of light emitting elements can be selectively disposed as a light source in the illumination light path of the optical system, and can be inserted into and removed from the observation apparatus main body. An observation apparatus characterized by comprising the above. The illumination unit is supported by the observation apparatus main body so as to be rotatable about a rotation axis,
The light emitting element is provided around the rotation axis,
The observation apparatus according to claim 1, wherein the light emitting element can be selectively arranged in the illumination light path by rotating the illumination unit about the rotation axis. The plurality of light emitting elements are arranged side by side in the insertion / extraction direction of the illumination unit,
The illumination unit is supported by the observation apparatus main body so that the light emitting element can be selectively arranged in the illumination optical path by moving the illumination unit together with the light emitting element in the insertion / extraction direction. The observation apparatus according to claim 1. The observation apparatus body has a contact portion electrically connected to a power source inside,
The electrodes of the light emitting elements are arranged so as to be exposed on the outer surface of the lighting unit,
When the illumination unit is inserted into the observation apparatus main body and the desired light emitting element is disposed in the illumination optical path, the electrode of the desired light emitting element comes into contact with the contact portion, thereby supplying power to the illumination unit. The observation apparatus according to claim 1, wherein The lighting unit includes an element information holding unit that holds information of the light emitting element,
The observation apparatus main body includes element recognition means for recognizing information on the light emitting element inserted in the illumination optical path from the element information holding unit, and power matched to the light emitting element based on the information on the light emitting element. The observation apparatus according to claim 1, further comprising: a power control unit that supplies the power.

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