JP5234987B2 - Optical measuring machine - Google Patents

Optical measuring machine Download PDF

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JP5234987B2
JP5234987B2 JP2009093862A JP2009093862A JP5234987B2 JP 5234987 B2 JP5234987 B2 JP 5234987B2 JP 2009093862 A JP2009093862 A JP 2009093862A JP 2009093862 A JP2009093862 A JP 2009093862A JP 5234987 B2 JP5234987 B2 JP 5234987B2
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lens barrel
main body
side member
measuring machine
relay
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JP2010243391A (en
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仁志 磯部
元宏 守谷
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Mitutoyo Corp
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Mitutoyo Corp
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本発明は、光学式測定機に関し、特に、リング照明装置を備える光学式測定機に関する。   The present invention relates to an optical measuring instrument, and more particularly to an optical measuring instrument provided with a ring illumination device.

従来、被測定物を観察するための対物レンズを収納する鏡筒と、鏡筒が取り付けられる取付部を有する本体と、鏡筒の周方向に沿ってリング状に配設され、被測定物を照明するリング照明装置とを備える光学式測定機が知られている（例えば、特許文献１参照）。
特許文献１に記載の画像測定装置（光学式測定機）は、対物レンズ（鏡筒）と、対物レンズに取り付けられるリング照明装置とを備えている。このような光学式測定機では、例えば、鏡筒の本体側の一端に周方向に沿って雄ネジ部を形成し、鏡筒の雄ネジ部が螺合される雌ネジ部を本体の取付部に形成することによって、本体の取付部に鏡筒を取り付ける構造が採用されている。 Conventionally, a lens barrel that houses an objective lens for observing the object to be measured, a main body having a mounting portion to which the lens barrel is attached, and a ring-shaped arrangement along the circumferential direction of the lens barrel, An optical measuring machine including a ring illumination device that illuminates is known (for example, see Patent Document 1).
The image measuring apparatus (optical measuring machine) described in Patent Document 1 includes an objective lens (lens barrel) and a ring illumination device attached to the objective lens. In such an optical measuring machine, for example, a male screw part is formed along the circumferential direction at one end on the main body side of the lens barrel, and a female screw part into which the male screw part of the lens barrel is screwed is attached to the attachment part of the main body. The structure which attaches a lens-barrel to the attachment part of a main body by forming in this is employ | adopted.

特開２００３−３３７３６５号公報JP 2003-337365 A

しかしながら、リング照明装置は、鏡筒の周方向に沿ってリング状に配設されているので、本体の取付部に鏡筒を取り付ける際には、作業者は、リング照明装置を介して鏡筒を取り付けなければならず、容易に取り付けることができないという問題がある。
また、作業者は、リング照明装置に遮蔽されることによって、本体の取付部を目視しにくくなるので、対物レンズの光軸が傾斜した状態で鏡筒を本体に取り付けてしまい、本体、及び鏡筒が破損してしまう場合があるという問題がある。 However, since the ring illumination device is arranged in a ring shape along the circumferential direction of the lens barrel, when attaching the lens barrel to the attachment portion of the main body, the operator can connect the lens barrel via the ring illumination device. Has to be attached and cannot be easily attached.
Further, since the operator is difficult to see the attachment portion of the main body by being shielded by the ring illumination device, the operator attaches the lens barrel to the main body with the optical axis of the objective lens inclined, and the main body and the mirror There is a problem that the tube may be damaged.

本発明の目的は、鏡筒を本体に対して容易に取り付けることができるとともに、本体、及び鏡筒の破損を防止することができる光学式測定機を提供することにある。   An object of the present invention is to provide an optical measuring machine that can easily attach a lens barrel to a main body and prevent damage to the main body and the lens barrel.

本発明の光学式測定機は、被測定物を観察するための対物レンズを収納する鏡筒と、前記鏡筒が取り付けられる取付部を有する本体と、前記鏡筒の周方向に沿ってリング状に配設され、前記被測定物を照明するリング照明装置とを備える光学式測定機であって、前記取付部に取り付けられ、前記鏡筒の前記本体への取り付けを中継する中継部材を備え、前記中継部材は、前記鏡筒が取り付けられる中継取付部と、前記対物レンズの光軸方向に沿って延出し、前記鏡筒を前記光軸方向に沿ってガイドするガイド部を備えることを特徴とする。   An optical measuring instrument of the present invention includes a lens barrel that houses an objective lens for observing an object to be measured, a main body having a mounting portion to which the lens barrel is attached, and a ring shape along the circumferential direction of the lens barrel. And a ring illumination device that illuminates the object to be measured, the optical measuring machine being attached to the attachment portion, comprising a relay member that relays attachment of the lens barrel to the main body, The relay member includes a relay mounting portion to which the lens barrel is mounted, and a guide portion that extends along the optical axis direction of the objective lens and guides the lens barrel along the optical axis direction. To do.

このような構成によれば、光学式測定機は、本体の取付部に取り付けられる中継部材を備え、中継部材は、鏡筒が取り付けられる中継取付部と、鏡筒を対物レンズの光軸方向に沿ってガイドするガイド部とを備えるので、本体に鏡筒を取り付ける際には、作業者は、ガイド部に沿って中継部材の中継取付部に鏡筒を取り付けることができる。
すなわち、中継部材のガイド部によって鏡筒の姿勢を規制して鏡筒を本体に取り付けることができるので、作業者は、リング照明装置を介して鏡筒を取り付ける場合であっても鏡筒を本体に対して容易に取り付けることができるとともに、本体、及び鏡筒の破損を防止することができる。 According to such a configuration, the optical measuring instrument includes the relay member attached to the attachment portion of the main body, and the relay member includes the relay attachment portion to which the lens barrel is attached and the lens barrel in the optical axis direction of the objective lens. Since the guide portion is provided along the guide portion, the worker can attach the lens barrel to the relay attachment portion of the relay member along the guide portion when the lens barrel is attached to the main body.
That is, since the position of the lens barrel can be regulated by the guide portion of the relay member and the lens barrel can be attached to the main body, the operator can attach the lens barrel to the main body even when attaching the lens barrel via the ring illumination device. The main body and the lens barrel can be prevented from being damaged.

本発明では、前記中継部材は、前記本体側に配置されるとともに、前記取付部に取り付けられる本体側部材と、前記鏡筒側に配置されるとともに、前記中継取付部、及び前記ガイド部を有する鏡筒側部材と、前記本体側部材、及び前記鏡筒側部材を連結する連結機構とを備えることが好ましい。   In this invention, while the said relay member is arrange | positioned at the said main body side, while being arrange | positioned at the said main body side member attached to the said attachment part, the said lens-barrel side, it has the said relay attachment part and the said guide part. It is preferable to include a lens barrel side member, the main body side member, and a coupling mechanism that couples the lens barrel side member.

このような構成によれば、中継部材は、本体側部材と、鏡筒側部材と、連結機構とを備え、鏡筒は、鏡筒側部材の中継取付部に取り付けられる。したがって、本体の破損を防止することができるとともに、鏡筒側部材の中継取付部に鏡筒を取り付けることによって、鏡筒側部材が破損した場合であっても、鏡筒側部材のみを交換することで中継部材を修理することができる。   According to such a configuration, the relay member includes the main body side member, the lens barrel side member, and the coupling mechanism, and the lens barrel is attached to the relay mounting portion of the lens barrel side member. Therefore, it is possible to prevent the main body from being damaged, and by attaching the lens barrel to the relay mounting portion of the lens barrel side member, even if the lens barrel side member is damaged, only the lens barrel side member is replaced. Thus, the relay member can be repaired.

本発明では、前記鏡筒側部材は、前記鏡筒と比較して軟らかい材質とされていることが好ましい。
このような構成によれば、鏡筒の破損を防止することができる。 In the present invention, it is preferable that the lens barrel side member is made of a softer material than the lens barrel.
According to such a configuration, damage to the lens barrel can be prevented.

本発明の一実施形態に係る画像測定機の一部を示す図。The figure which shows a part of image measuring machine which concerns on one Embodiment of this invention. 前記実施形態にかかる画像測定機の一部を示す断面図。Sectional drawing which shows a part of image measuring machine concerning the said embodiment.

以下、本発明の一実施形態を図面に基づいて説明する。
図１は、本発明の一実施形態に係る画像測定機１の一部を示す図である。
光学式測定機としての画像測定機１は、図１に示すように、被測定物（図示略）を観察するための対物レンズ２１を収納する円筒状の鏡筒２と、鏡筒２が取り付けられる本体３と、鏡筒２の周方向に沿ってリング状に配設され、被測定物を照明するリング照明装置４とを備える。
また、本体３は、鏡筒２の軸方向（図１中上下方向）、すなわち対物レンズ２１の光軸方向に沿ってリング照明装置４を移動可能に支持する支持部３１を備える。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a part of an image measuring machine 1 according to an embodiment of the present invention.
As shown in FIG. 1, an image measuring device 1 as an optical measuring device is provided with a cylindrical lens barrel 2 that houses an objective lens 21 for observing an object to be measured (not shown), and a lens barrel 2 attached thereto. And a ring illumination device 4 that is arranged in a ring shape along the circumferential direction of the lens barrel 2 and illuminates the object to be measured.
The main body 3 includes a support portion 31 that supports the ring illumination device 4 so as to be movable along the axial direction of the lens barrel 2 (vertical direction in FIG. 1), that is, the optical axis direction of the objective lens 21.

図２は、画像測定機１の一部を示す断面図である。なお、図２では、鏡筒２の軸方向を通る平面で画像測定機１を切断している。
鏡筒２は、図２に示すように、本体３側の一端に周方向に沿って形成される雄ネジ部２２を有している。
本体３は、鏡筒２が取り付けられる円筒状の取付部３２を備える。この取付部３２は、鏡筒２の雄ネジ部２２が螺合される形状の雌ネジ部３２１と、鏡筒２の軸方向と略直交する平面に形成される平面部３２２とを有している。
リング照明装置４は、被測定物を照明するための光を射出する複数の発光素子を有する照明ユニット４１と、照明ユニット４１から射出される光を反射することで被測定物に導光するミラーユニット４２とを備える。 FIG. 2 is a cross-sectional view showing a part of the image measuring machine 1. In FIG. 2, the image measuring machine 1 is cut along a plane passing through the axial direction of the lens barrel 2.
As shown in FIG. 2, the lens barrel 2 has a male screw portion 22 formed along the circumferential direction at one end on the main body 3 side.
The main body 3 includes a cylindrical attachment portion 32 to which the lens barrel 2 is attached. The mounting portion 32 includes a female screw portion 321 having a shape into which the male screw portion 22 of the lens barrel 2 is screwed, and a flat portion 322 formed on a plane substantially orthogonal to the axial direction of the lens barrel 2. Yes.
The ring illumination device 4 includes an illumination unit 41 having a plurality of light emitting elements for emitting light for illuminating the object to be measured, and a mirror for guiding the light emitted from the illumination unit 41 to guide the object to be measured. A unit 42.

また、画像測定機１は、取付部３２に取り付けられ、鏡筒２の本体３への取り付けを中継する中継部材５を備える。
中継部材５は、本体３側に配置されるとともに、取付部３２に取り付けられる本体側部材５１と、鏡筒２側に配置される鏡筒側部材５２とを備える。 In addition, the image measuring machine 1 includes a relay member 5 that is attached to the attachment portion 32 and relays attachment of the lens barrel 2 to the main body 3.
The relay member 5 is disposed on the main body 3 side, and includes a main body side member 51 attached to the attachment portion 32 and a lens barrel side member 52 disposed on the lens barrel 2 side.

本体側部材５１は、円筒状に形成された部材である。この本体側部材５１は、鏡筒２の雄ネジ部２２と同一の形状とされ、取付部３２の雌ネジ部３２１に螺合される雄ネジ部５１１と、雄ネジ部５１１と比較して大きい径に形成される拡径部５１２とを備える。この拡径部５１２には、鏡筒２の軸方向と略直交する方向に沿って複数のネジ孔５１２Ａが形成されている。
そして、本体側部材５１は、取付部３２の雌ネジ部３２１に雄ネジ部５１１が螺合されることによって本体３に取り付けられる。この際、取付部３２の平面部３２２、及び拡径部５１２の本体３側の面は、接着剤を介して接着される。 The main body side member 51 is a member formed in a cylindrical shape. The main body side member 51 has the same shape as the male screw portion 22 of the lens barrel 2 and is larger than the male screw portion 511 and the male screw portion 511 to be screwed into the female screw portion 321 of the attachment portion 32. And an enlarged diameter portion 512 formed to have a diameter. A plurality of screw holes 512 </ b> A are formed in the enlarged diameter portion 512 along a direction substantially orthogonal to the axial direction of the lens barrel 2.
The main body side member 51 is attached to the main body 3 by the male screw portion 511 being screwed to the female screw portion 321 of the attachment portion 32. At this time, the plane portion 322 of the attachment portion 32 and the surface of the enlarged diameter portion 512 on the main body 3 side are bonded via an adhesive.

鏡筒側部材５２は、鏡筒２と比較して軟らかい材質で円筒状に形成された部材である。この鏡筒側部材５２は、本体側部材５１における拡径部５１２の内側に挿入される挿入部５２１と、鏡筒２が取り付けられる中継取付部５２２と、鏡筒２の外周を覆うように鏡筒２の軸方向に沿って延出し、鏡筒２を軸方向に沿ってガイドするガイド部５２３とを備える。
挿入部５２１には、拡径部５１２のネジ孔５１２Ａと対向する位置にテーパ５２１Ａが形成されている。そして、ネジ孔５１２Ａにネジ５３が螺合され、ネジ５３の先端をテーパ５２１Ａに係合させることで本体側部材５１、及び鏡筒側部材５２を連結させる。 The lens barrel side member 52 is a member formed in a cylindrical shape with a softer material than the lens barrel 2. The lens barrel side member 52 includes an insertion portion 521 that is inserted inside the enlarged diameter portion 512 of the main body side member 51, a relay mounting portion 522 to which the lens barrel 2 is attached, and a mirror so as to cover the outer periphery of the lens barrel 2. A guide portion 523 extends along the axial direction of the tube 2 and guides the lens barrel 2 along the axial direction.
The insertion portion 521 is formed with a taper 521A at a position facing the screw hole 512A of the enlarged diameter portion 512. Then, the screw 53 is screwed into the screw hole 512A, and the main body side member 51 and the lens barrel side member 52 are connected by engaging the tip of the screw 53 with the taper 521A.

すなわち、本実施形態では、連結機構は、拡径部５１２と、挿入部５２１と、ネジ５３とで構成されている。
なお、本体側部材５１の取付部３２への取り付けや、本体側部材５１、及び鏡筒側部材５２の連結は、リング照明装置４を鏡筒２側に移動させた状態で行う。
中継取付部５２２は、挿入部５２１と比較して大きい径に形成され、鏡筒２の雄ネジ部２２が螺合される雌ネジ部５２２Ａを有している。 That is, in the present embodiment, the coupling mechanism is configured by the enlarged diameter portion 512, the insertion portion 521, and the screw 53.
The attachment of the main body side member 51 to the attachment portion 32 and the connection of the main body side member 51 and the lens barrel side member 52 are performed in a state in which the ring illumination device 4 is moved to the lens barrel 2 side.
The relay mounting portion 522 is formed to have a larger diameter than the insertion portion 521 and has a female screw portion 522A to which the male screw portion 22 of the lens barrel 2 is screwed.

本実施形態に係る画像測定機１によれば、次のような効果がある。
（１）画像測定機１は、中継部材５を備え、中継部材５は、中継取付部５２２と、ガイド部５２３とを備えるので、本体３に鏡筒２を取り付ける際には、作業者は、ガイド部５２３に沿って中継部材５の中継取付部５２２に鏡筒２を取り付けることができる。すなわち、中継部材５のガイド部５２３によって鏡筒２の姿勢を規制して鏡筒２を本体３に取り付けることができるので、作業者は、リング照明装置４を介して鏡筒２を取り付ける場合であっても鏡筒２を本体３に対して容易に取り付けることができるとともに、本体３、及び鏡筒２の破損を防止することができる。 The image measuring machine 1 according to the present embodiment has the following effects.
(1) Since the image measuring machine 1 includes the relay member 5, and the relay member 5 includes the relay mounting portion 522 and the guide portion 523, when attaching the lens barrel 2 to the main body 3, the operator The lens barrel 2 can be attached to the relay attachment portion 522 of the relay member 5 along the guide portion 523. That is, since the guide tube 523 of the relay member 5 regulates the attitude of the lens barrel 2 and the lens barrel 2 can be attached to the main body 3, the operator can attach the lens barrel 2 via the ring illumination device 4. Even if it exists, while being able to attach the lens barrel 2 easily with respect to the main body 3, damage to the main body 3 and the lens barrel 2 can be prevented.

（２）中継部材５は、本体側部材５１と、鏡筒側部材５２と、連結機構とを備え、鏡筒２は、鏡筒側部材５２の中継取付部５２２に取り付けられる。したがって、本体３の破損を防止することができるとともに、鏡筒側部材５２の中継取付部５２２に鏡筒２を取り付けることによって、鏡筒側部材５２が破損した場合であっても、鏡筒側部材５２のみを交換することで中継部材５を修理することができる。
（３）鏡筒側部材５２は、鏡筒２と比較して軟らかい材質とされているので、鏡筒２の破損を防止することができる。 (2) The relay member 5 includes a main body side member 51, a lens barrel side member 52, and a coupling mechanism, and the lens barrel 2 is attached to the relay mounting portion 522 of the lens barrel side member 52. Therefore, the main body 3 can be prevented from being damaged, and even if the lens barrel side member 52 is damaged by attaching the lens barrel 2 to the relay mounting portion 522 of the lens barrel side member 52, the lens barrel side The relay member 5 can be repaired by replacing only the member 52.
(3) Since the lens barrel side member 52 is made of a softer material than the lens barrel 2, the lens barrel 2 can be prevented from being damaged.

〔実施形態の変形〕
なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、前記実施形態では、中継部材５は、本体側部材５１と、鏡筒側部材５２とで構成されていたが、一部材として構成してもよい。要するに、中継部材は、本体の取付部に取り付けられ、鏡筒の本体への取り付けを中継する部材であればよい。
前記実施形態では、鏡筒側部材５２は、鏡筒２と比較して軟らかい材質とされていたが、どのような材質であってもよい。 [Modification of Embodiment]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the embodiment, the relay member 5 is configured by the main body side member 51 and the lens barrel side member 52, but may be configured as one member. In short, the relay member may be a member that is attached to the attachment portion of the main body and relays attachment of the lens barrel to the main body.
In the embodiment described above, the lens barrel side member 52 is made of a softer material than the lens barrel 2, but may be made of any material.

前記実施形態では、ガイド部５２３は、鏡筒２の外周を覆うように鏡筒２の軸方向に沿って延出し、鏡筒２を軸方向に沿ってガイドしていた。これに対して、例えば、対物レンズの光軸方向に沿って鏡筒に溝を形成し、形成した溝にガイド部を挿入することで鏡筒を対物レンズの光軸方向に沿ってガイドするように構成してもよい。要するに、ガイド部は、対物レンズの光軸方向に沿って延出し、鏡筒を対物レンズの光軸方向に沿ってガイドする部分であればよい。
前記実施形態では、鏡筒２、本体３、及び中継部材５をネジ式で固定していたが、バヨネット式等によって固定してもよい。 In the embodiment, the guide portion 523 extends along the axial direction of the lens barrel 2 so as to cover the outer periphery of the lens barrel 2, and guides the lens barrel 2 along the axial direction. In contrast, for example, a groove is formed in the lens barrel along the optical axis direction of the objective lens, and the guide tube is inserted into the formed groove to guide the lens barrel along the optical axis direction of the objective lens. You may comprise. In short, the guide portion may be a portion that extends along the optical axis direction of the objective lens and guides the lens barrel along the optical axis direction of the objective lens.
In the embodiment, the lens barrel 2, the main body 3, and the relay member 5 are fixed with screws, but may be fixed with a bayonet type or the like.

本発明は、光学式測定機に利用でき、特に、リング照明装置を備える光学式測定機に好適に利用することができる。   The present invention can be used for an optical measuring instrument, and in particular, can be suitably used for an optical measuring instrument including a ring illumination device.

１…画像測定機（光学式測定機）
２…鏡筒
３…本体
４…リング照明装置
５…中継部材
２１…対物レンズ
３２…取付部
５１…本体側部材
５２…鏡筒側部材
５２２…中継取付部
５２３…ガイド部 1. Image measuring machine (optical measuring machine)
DESCRIPTION OF SYMBOLS 2 ... Lens barrel 3 ... Main body 4 ... Ring illumination device 5 ... Relay member 21 ... Objective lens 32 ... Mounting part 51 ... Main body side member 52 ... Lens barrel side member 522 ... Relay mounting part 523 ... Guide part

Claims (3)

被測定物を観察するための対物レンズを収納する鏡筒と、前記鏡筒が取り付けられる取付部を有する本体と、前記鏡筒の周方向に沿ってリング状に配設され、前記被測定物を照明するリング照明装置とを備える光学式測定機であって、
前記取付部に取り付けられ、前記鏡筒の前記本体への取り付けを中継する中継部材を備え、
前記中継部材は、
前記鏡筒が取り付けられる中継取付部と、
前記対物レンズの光軸方向に沿って延出し、前記鏡筒を前記光軸方向に沿ってガイドするガイド部を備えることを特徴とする光学式測定機。 A lens barrel that houses an objective lens for observing the object to be measured, a main body having a mounting portion to which the lens barrel is attached, and a ring-shaped arrangement along the circumferential direction of the lens barrel, the object to be measured An optical measuring machine comprising a ring illumination device for illuminating
A relay member attached to the mounting portion and relaying the mounting of the lens barrel to the main body,
The relay member is
A relay mounting portion to which the lens barrel is mounted;
An optical measuring machine comprising a guide portion that extends along an optical axis direction of the objective lens and guides the lens barrel along the optical axis direction. 請求項１に記載の光学式測定機であって、
前記中継部材は、
前記本体側に配置されるとともに、前記取付部に取り付けられる本体側部材と、
前記鏡筒側に配置されるとともに、前記中継取付部、及び前記ガイド部を有する鏡筒側部材と、
前記本体側部材、及び前記鏡筒側部材を連結する連結機構とを備えることを特徴とする光学式測定機。 The optical measuring machine according to claim 1,
The relay member is
A main body side member disposed on the main body side and attached to the attachment portion;
While being arranged on the lens barrel side, a lens barrel side member having the relay mounting portion and the guide portion,
An optical measuring machine comprising: a main body side member; and a coupling mechanism that couples the lens barrel side member. 請求項２に記載の光学式測定機であって、
前記鏡筒側部材は、前記鏡筒と比較して軟らかい材質とされていることを特徴とする光学式測定機。 The optical measuring machine according to claim 2,
The optical measuring machine, wherein the lens barrel side member is made of a softer material than the lens barrel.
JP2009093862A 2009-04-08 2009-04-08 Optical measuring machine Active JP5234987B2 (en)

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Publication number Priority date Publication date Assignee Title
JPH0731295B2 (en) * 1990-01-30 1995-04-10 キヤノン株式会社 Lens barrel
JP3082330B2 (en) * 1991-08-26 2000-08-28 株式会社ニコン microscope
JP3789816B2 (en) * 2001-12-26 2006-06-28 三洋電機株式会社 Projection display device
JP3889992B2 (en) * 2002-05-17 2007-03-07 株式会社ミツトヨ Ring lighting device
JP4453283B2 (en) * 2003-07-07 2010-04-21 株式会社ニコン Lens barrel
JP5143332B2 (en) * 2004-07-05 2013-02-13 オリンパス株式会社 Imaging device, fixing member for imaging device, and method of repairing imaging device
JP2007219265A (en) * 2006-02-17 2007-08-30 Olympus Corp Microscope examination apparatus
JP2007003341A (en) * 2005-06-23 2007-01-11 Mitsutoyo Corp Lighting system, and measuring instrument
JP2007163553A (en) * 2005-12-09 2007-06-28 Tokyo Seimitsu Co Ltd Microscope, objective lens unit for microscope, and adaptor for objective lens
JP2010060976A (en) * 2008-09-05 2010-03-18 Nikon Corp Camera and guide member

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