JP3832532B2 - Focusing mirror adjustment device - Google Patents

Focusing mirror adjustment device Download PDF

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JP3832532B2
JP3832532B2 JP05422798A JP5422798A JP3832532B2 JP 3832532 B2 JP3832532 B2 JP 3832532B2 JP 05422798 A JP05422798 A JP 05422798A JP 5422798 A JP5422798 A JP 5422798A JP 3832532 B2 JP3832532 B2 JP 3832532B2
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screw
frame
focusing
adjustment
outer frame
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JPH11237245A (en
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健 岡本
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株式会社ソキア
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Description

【0001】
【発明の属する技術分野】
本発明は焦点鏡調整装置に係り、特に水準儀に備えられた焦点鏡の調整を行う測量機の焦点鏡調整装置に関する。
【0002】
【従来の技術】
従来から、望遠鏡の焦点鏡の調整は、焦点鏡枠の円周4方向に設けたねじの押し引きにより行われている。しかし焦点鏡枠の周囲4方向に設けた4つのねじを全て動かさなくてはならず手間がかかるという不都合があった。また焦点鏡を所定の位置に固定するためにねじを締めるときには、どうしても焦点鏡が動いてしまうので、その分を見込んで調整をしなくてはならなかった。また、十字線の傾きの調整ができなかった。
【0003】
そこで1本のねじで調整できる技術が提案されている。例えば実開昭61−24719号公報では、焦点板外枠における調整ねじ及び取付ねじの遊嵌部は、夫々焦点板外枠の円周方向に長い条孔に形成されると共に、焦点板枠を調整ねじ側、取付ねじ側のいずれか一方の側に弾引するための弾引機構を具えた技術が開示されている。
【0004】
すなわち、この技術によれば、一本のねじで調整するものであり、「焦点板外枠(4)内の後端よりに前端面を当接し、焦点板外枠(4)内の後端面付近に欠円リング(6)を固定し、焦点板枠(3)の後端面と欠円リング(6)の前面との間にばね座金(7)を介在させて、焦点板枠(3)、従って焦点板(1)を常に突縁(5)の後端面すなわち焦点板外枠(4)の前方側に弾圧するように形成する。次に焦点板外枠(4)の上下対称位置又は左右対称位置に、外枠の円周方向に長いねじ貫通条孔(8)(9)を設ける。ねじ貫通条孔(8)には、調整ねじ(10)の螺杆部(10b)を貫挿し、この螺杆部(10b)は焦点板枠(3)に設けたねじ孔(16)に螺入されている。而して調整ねじ(10)の頭部(10a)と焦点板外枠(4)の外面との間に彎曲座金(12a)を介在させる。またねじ貫通条孔(9)に、取付ねじ(11)の螺杆部(11b)を貫挿し、この螺杆部(11b)は、焦点板枠(3)に設けたねじ孔(17)に螺入され、上記取付ねじ(11)と前期調整ねじ(10)とにより焦点板枠(3)を支持している。」而して焦点板枠(3)は、取付ねじ(11)の方向又は調整ねじ(10)の方向に弾引機構により常に弾引されている」こと、「前記ねじ貫通条孔(9)を掩閉するように、焦点板外枠(4)の外面に当接された彎曲座金(12b)と、取付ねじ(11)の頭部(11a)との間に、弾撥ばね部材(13)を介在させて取付ねじ(11)を常に外方に弾引し、従って焦点板枠(3)を取付ねじ(11)側に弾引する」ことが開示されている(実開昭61−24719号の明細書第4頁第16行乃至第6頁第1行)。
【0005】
また、ねじに弾力手段を有しているものとして、上記実開昭61−24719号公報の他に、実公昭41−135号公報等が知られている。
【0006】
さらに、傾きを修正できるものとしても、上記実開昭61−24719号公報の他に、実開昭54−118154号公報が知られている。この実開昭54−118154号公報では、「装置本体に固定された保持板と、該保持板に支持されて搭載されたレンズ等の光学系の焦点距離を調整(Z方向)する第1調整機構と、上記保持板に支持されかつ搭載された読取素子を上記Z方向と垂直な面内でX方向、Y方向及びねじれ方向(Q方向)に調整する第2調整機構とを備えてなり、保持板を基準面として該保持板に搭載された第1及び第2調整機構を介してX,Y,Z及びQ方向の位置調整をする」技術が開示されている。すなわち、保持板11の相対する面にはZ方向移動板16が四隅のビス27で位置調整可能に取付けられ,Y方向移動は微調整用として従来から用いられている差動ねじ18によって行われる。Y方向移動板16の差動ねじ18と対向する側に設けられたピン19は、上記差動ねじ18による移動を吸収するガイドピンである。上記差動ねじ18はリードL1,L2の1種のねじが刻まれて成り、差動ねじ18の1回転によってY方向移動板はY=L1−L2だけ移動し、リードL1とL2を近づけることによって更に微調整が可能となる。
【0007】
上記Y方向移動板は保持板11に当接する側と相対する側でQ方向移動板23に嵌合し,該Q方向移動板23と保持板11間にY方向移動板16を覆ってX方向移動板17及びX方向調整板20が介挿されている。まず上記Q方向移動板23には読取素子10を判定した基板24が固定ビス26,26によって一体的に取付けられ、Q方向移動板23の他端は上記Y方向移動板16の突部16aと係合し,Y方向移動板16の移動に伴って変位する。Q方向移動板23はQ方向調整ねじ25によってX方向調整板20及びX方向移動板17に支持されるが、調整ねじ25が挿通される部分のQ方向移動板23には、ねじ径よりも充分大きいバカ穴25aが形成され、バカ穴25aの範囲内で基板24をX方向調整板20上で摺動させて、Q方向のねじれ調整が実行される。ねじれ調整がなされた状態でQ方向調整ねじ25が締結され、位置が固定される。ただし該Q方向調整ねじ25は上記Y方向の位置調整及び次に述べるX方向の位置調整がなされた状態で締結され、調整作業中は緩められた状態に置かれる。
【0008】
X方向の位置調整は、Y方向移動板16を覆ってQ方向移動板23との間に介挿されたX方向移動板17によって、該X方向移動板17のX方向に設けられた調整差動ねじ21の回転により実行される。X方向移動板17のX方向に設けられたガイドピン22は上記差動ねじに21よるX方向移動を吸収する。差動ねじ21は上記差動ねじ18と同様にリードの異なるねじで形成され、微調整がなされる。差動ねじ21の回転によってX方向移動板17が移動すると、該移動に伴って嵌合状態にあるY方向移動板16もまた一体的に移動し、更にX方向微調整板20に支持された基盤24をもX方向に移動させて位置調整する。」ことが開示されている(実開昭54−118154号の明細書第4頁第14行乃至第6頁第19行)。
【0009】
【発明が解決しようとする課題】
しかし上記実開昭61−24719号公報で示す技術では、焦点板を保持する枠に直接調整ねじや取付ねじを螺合させて調整するものであり、傾きに関しては「十字線(2)の傾きを調整するには、木槌などで調整ねじ(10)の頭部(10a)又は取付ねじ(11)の頭部(11a)を叩」くものであり、熟練を要する調整なので不都合がある。
【0010】
また実開昭54−118154号公報で開示された技術は、機構が複雑であるだけでなく、ねじの押し引きによる調整機構では、焦点板の周囲4方向に設けた4つのねじを全てを動かさなくてはならず手間かかかるという不都合があった。また焦点板を所定の位置に固定するためにねじを締めるときには、どうしても焦点板が動いてしまうので、その分を見込んで調整をする場合が生じていた。
【0011】
そこで本願出願人は焦点板の調整を行う技術を提案している。例えば、特開平9−126753号公報で提案した技術は、図6に示すように、調整ねじ106を回すことにより調整ねじ106が焦点板枠押え102を押し、これによりばね105が圧縮されて、焦点板枠101と焦点板枠押え102が視準軸に垂直な平面上を水平方向に移動させる技術である。
【0012】
しかし、上記従来技術では、焦点板枠押え102に対向形成したV溝102aを調整ねじ106と押えピン104で支持した構成であるため、調整ねじ106を回して焦点板枠101と枠押え102を水平方向に移動させる際に周方向にも回動し、焦点板の十字線が傾いた状態となるため、ビス107を緩めて焦点板枠101を長孔101bに沿って回すことで、十字線の傾きを調整する必要があった。即ち、十字線の傾きを調整してやる必要があり、それだけ調整機構が複雑となっていた。
【0013】
本発明の目的は、1本の調整ねじによって焦点鏡の十字線位置を簡単に調整できる焦点鏡調整装置を提供することにある。
【0014】
【課題を解決するための手段】
本発明の請求項1に係る焦点鏡調整装置は、リング状の外枠の前面側には枠押さえが、背面側には受け板がそれぞれ固定され、外枠内部には上下に延びるガイドピンが配設されるとともに、焦点鏡を囲繞する楔型の焦点鏡枠が一対のコマによって上下方向に支持され、一方のコマには圧縮ばねが作用し、他方のコマには外枠に形成された雌ねじ部に螺合貫通する調整ねじが係合し、該調整ねじの回動によって前記焦点鏡枠がガイドピンに沿って上下にスライドすることを特徴とする。
【0015】
また前記一対のコマには係合孔が形成され、該係合孔に前記ばね受けねじ及び調整ねじがそれぞれ係合すると好適である。このとき、前記焦点鏡枠と前記コマとの当接面をそれぞれ傾斜面とし、調整ねじの締め付けに伴って焦点鏡枠が枠押えに、コマが受け板に圧接されるように形成すると好適である。また前記調整ねじ側に位置するコマに形成された係合孔には鋼球が配設され、該鋼球を介して前記調整ねじと前記コマとが当接するようにすると好適である。さらに前記ガイドピンは丸棒であると好適である。
【0016】
【作用】
本発明の焦点鏡調整装置は、リング状の外枠内部に、上下に延びるガイドピンが配設され、また焦点鏡を囲繞する楔型の焦点鏡枠が一対のコマによって上下方向に支持された構成とされている。また一方のコマには圧縮ばねが作用し、他方のコマには外枠に形成された雌ねじ部に螺合貫通する調整ねじが係合している。
【0017】
前記くさび型の焦点鏡枠は、上記のように上下方向に一対のコマを介して、圧縮ばねのばね力で挟持されることにより、焦点鏡枠の側縁端面がガイドピンに当接するように保持されている。そして、調整ねじを回動させることにより、焦点鏡枠はガイドピン及び枠押えに接触したまま上下にスライドさせ、焦点鏡の調整を行う。
【0018】
このように本発明の焦点鏡調整装置によれば、ねじ1本で調整を行うことができるので、焦点鏡の調整に要する時間を削減することができ、作業効率性を向上させることが可能となる。また調整に熟練を必要とすることなく正確且つ簡単に焦点鏡の調整を行うことが可能となる。
【0019】
また前記一対のコマに係合孔を形成し、この係合孔にばね受けねじ及び調整ねじがそれぞれ係合させることにより、外枠内におけるコマの変位を防止することができる。さらに焦点鏡枠とコマとの当接面をそれぞれ傾斜面に形成することにより、調整ねじの締め付けに伴って焦点鏡枠が枠押えに、コマが受け板に圧接されるため、焦点鏡枠の傾きを防止することができる。
【0020】
なお焦点鏡枠をガイドするガイドピンを丸棒とすることにより、焦点鏡枠はガイドピンに対して面接触でなく常に線接触することができ、外枠内におけるガイドピンの配設を容易にすることができる。
【0021】
【発明の実施の形態】
焦点鏡23の十字線の一方は、焦点鏡枠24の台形下底に相当する側縁端面25aに平行に予め設定されている。焦点鏡調整装置Sは、リング状の外枠10を有し、外枠10の前面側には枠押さえ30が、背面側には受け板14がそれぞれ配設されている。
【0022】
さらに外枠10内部には上下に延びるガイドピン20が配設されている。焦点鏡23は楔型の焦点鏡枠24に囲繞されており、この焦点鏡枠24は、枠押え30と受け板14で前後方向に挟まれ、一対のコマ26,27によって上下方向に支持されている。一方のコマ26には圧縮ばねとしてのコイルばね17が作用し、他方のコマ27には外枠10に形成された雌ねじ部18cに螺合貫通する調整ねじ18が係合している。
【0023】
前記くさび型の焦点鏡枠24は、上下方向に一対のコマ26,27を介して、コイルばね17のばね力で挟持されることにより、焦点鏡枠24の側縁端面25aがガイドピン20に当接するように保持されている。この状態で調整ねじ18を回動させると、焦点鏡枠24はガイドピン20と焦点鏡枠押え30に接触したままY軸方向に正確にスライドされる。
【0024】
なお前記コマ26のばね受けねじ16と係合する側に係合孔26bを形成し、この係合孔にばね受けねじ16を係合させ、また前記コマ27の調整ねじ18と係合する側に係合孔27bを形成し、この係合孔に調整ねじを係合させる構成とすることにより、各ねじの先端部が係合孔26b,27bに係合して、コマ26,27の左右方向(X軸方向)の変位を阻止することができる。
【0025】
さらに、焦点鏡枠24とコマ26,27との当接面を、X軸方向及びZ軸方向から見て、ハ字状に傾斜するように形成することにより、調整ねじ18の締め付けに伴って焦点鏡枠24が枠押さえ30に、コマ26,27が受け板14に圧接され、焦点鏡枠24が傾くのを防止することができる。また焦点鏡枠24をガイドするガイドピン20を丸棒とすることにより、焦点鏡枠24はガイドピン20に対して面接触でなく常に線接触することができ、外枠10内におけるガイドピン20の配設を容易にすることができる。
【0026】
【実施例】
以下、本発明の一実施例を図面に基づいて説明する。なお、以下に説明する部材,配置等は本発明を限定するものでなく、本発明の趣旨の範囲内で種々改変することができるものである。
【0027】
図1乃至図5は本発明に係る実施例を示すものであり、図1は図2に示す本発明の焦点鏡調整装置のА−Аに相当する断面説明図、図2は本発明の焦点鏡調整装置の正面図、図3は図1に示す本発明の焦点鏡調整装置のB−Bに相当する断面説明図、図4は焦点鏡枠,コマ,ガイドピンを示す斜視図、図5は焦点鏡調整装置の測量機への取付を示す説明図である。
【0028】
本発明の焦点鏡調整装置Sは、例えばレベル等の測量機における焦点鏡調整装置に関するものであり、外枠10と、外枠の前面側に位置する枠押さえ30と、外枠の背面側に位置する受け板14と、外枠10に配設される焦点鏡枠24と、焦点鏡枠24に囲繞される焦点鏡23と、焦点鏡に貼着された防塵ガラス28と、焦点鏡枠24を支持するコマ26,27と、ばね受けねじ16と、ばね受けねじ16に取り付けられる圧縮ばねとしてのコイルばね17と、調整ねじ18と、ガイドピン20と、を主要構成要素としている。
【0029】
外枠10は、リング状の接眼外枠である。外枠10は、焦点鏡装置Sを測量機に配設したとき外方に向けて開口する開口部11aと、鏡筒1側に開口する開口部11bとを有している。開口部11aは、開口部11bより小さめに形成されており、開口部11aの周縁部には底部11cが位置している。
【0030】
また外枠10には、焦点鏡調整装置Sを測量機の鏡筒1へ取り付ける外枠固定ねじ15を係合させるための複数のねじ孔15aが形成されている。
【0031】
前記開口部11aには受け板14が配設されている。受け板14は、中央に円孔14aが設けられた円形の板材である。この受け板14の周縁部を前記底部11cに載置し、開口部11aから円孔14aが露出するように配設する。このとき受け板14と、外枠10とで囲まれた空間を凹部12とする。
【0032】
図3に示すように、外枠10には、Y軸方向に貫通して対向して配設される、コイルばね17を有するばね受けねじ16と、調整ねじ18と、が設けられている。ばね受けねじ16は、頭部16aと、雄ねじ部16bと、棒部16cとから構成されており、雄ねじ部16bの内径は、棒部16cの内径よりも大きめに形成されている。そしてコイルばね17は、棒部16cを囲むようにして係合されている。調整ねじ18は、頭部18aと雄ねじ部18bとから構成されている。
【0033】
前記ばね受けねじ16及び調整ねじ18は、外枠10に形成されたねじ孔に係合して、外枠10を貫通している。ばね受けねじ16が貫通するねじ孔には、ばね受けねじ16の雄ねじ部16bと螺合可能な雌ねじ部16dが形成されている。同様に、調整ねじ18を貫通するねじ孔には、調整ねじ18の雄ねじ部18bと螺合可能な雌ねじ部18cが形成されている。
【0034】
ばね受けねじ16は、雄ねじ部16b及び棒部16cをねじ孔に挿入し、ねじ孔の雌ねじ部16dと、ばね受けねじ16の雄ねじ部16bとを螺合させることにより取り付けられる。また調整ねじ18は、雄ねじ部18bと、ねじ孔の雌ねじ部18cとを螺合させることにより取り付けられる。
【0035】
外枠10の凹部12内において、Y軸から偏心した位置には、ガイドピン20がY軸と平行に配設されている。ガイドピン20は、外枠10に設けた貫通孔10a,10aに圧入固定されている。なお、このガイドピン20を丸棒形状とすることにより、焦点鏡枠24はガイドピン20に対して面接触でなく常に線接触することができ、外枠10内におけるガイドピン20の配設を容易にすることができる。
【0036】
焦点鏡23には、十字線23aや図示しないスタジア線が設けられており、焦点鏡枠24に囲繞され且つ一体化されている。焦点鏡枠24は、外枠10の凹部12内に収容されている。焦点鏡枠24は、図4に示すようにガイドピン20側の辺が対向する辺よりも長く形成された正面視台形で、辺24c,24dが上下方向に異なる向きに傾斜して形成されている。
【0037】
さらに本例の焦点鏡枠24においては、上記斜辺24c,24dに連続する側面24a,24bが、図に示すZ軸方向及びX軸方向から見てハ字型に傾斜するように形成されている。
【0038】
焦点鏡枠24の上下には、側面24a,24bに隣接して押えコマ26,27が配設されている。押えコマ26は、図1及び図3に示すように、ばね受けねじ16の棒部16cが係合される係合孔26bが形成されている。係合孔26bは、前記棒部16cを係合可能な大きさで、且つコイルばね17の径よりも小さめに形成されている。よって棒部16cの周縁に取り付けられたコイルばね17は、ばね受けねじ16の雄ねじ部16bと係合孔26bの周縁との間に介装される。
【0039】
押えコマ27には、調整ねじ18が係合される係合孔27bが形成されている。このとき、係合孔27b内に、鋼球19を収容することにより、調整ねじ18と係合孔27b間の摩擦を低減し、調整ねじ18のスムーズな回動と摩滅の軽減を図ることができる。
【0040】
さらに図4に示すように押さえコマ26,27は、焦点鏡枠24の側面24a,24bに隣接する面26a,27aが、焦点鏡枠24の側面24a,24bに整合するように傾斜して形成されている。このような構成とすることにより、調整ねじ18の締め付けに伴って焦点鏡枠24を枠押さえ30に、押えコマ26,27を受け板14にそれぞれ圧接させることができ、焦点鏡枠24の外枠10内における傾きを防止することができる。
【0041】
また押えコマ26,27へのばね受けねじ16及び調整ねじ18が、押えコマ26,27の右側寄りの位置において当接する構成を示したが、これに限らず、押えコマ26,27の中央位置で当接するように構成しても良い。いずれの場合においても、ばね受けねじ16及び調整ねじ18の中心線を結んだ線がY軸に平行となるようにされるものとする。
【0042】
枠押え30は、外枠10の開口部11bに配設されるものである。枠押え30は、外周側面部に雄ねじ部30aを有している。また、外枠10の開口部周縁には円筒型の立壁13が形成されており、この立壁13には図示しない雌ねじ部が形成されている。枠押え30の雄ねじ部30aを開口部11bの立壁13の雌ねじに螺合させて回しながら配設することにより、枠押え30は、外枠10の凹部12内の焦点鏡枠24及び押えコマ26,27と、突当て面32で当接し、焦点鏡枠24及び押えコマ26,27を受け板14側へ押圧して、前後方向(Z軸方向)の動きを拘束する。なお、図1に示す枠押え30に設けられた孔31,31は、枠押え30を開口部11bに取り付ける取付具を係合させるための係合穴である。
【0043】
次に上記焦点鏡調整装置Sを測量機の鏡筒1へ取り付ける方法について説明する。図5に示すように、鏡筒1には、焦点鏡調整装置Sを取り付けるための、開口1a及びねじ孔1bが形成されている。開口1aは外枠10の立壁13を嵌合可能な大きさに形成されている。この開口1aへ外枠10の立壁13を嵌合させて、さらに外枠固定ねじ15を外枠10のねじ孔15a及び鏡筒1のねじ孔1aへ係合させて締め付けることにより、焦点鏡調整装置Sを鏡筒1へ取り付ける。
【0044】
次に上記構成からなる焦点鏡調整装置Sの動作について説明する。図4に示すように、焦点鏡枠24は上下方向に一対のコマ26,27を介して、コマ26側から、コイルばね17のばね力で矢印C方向に押圧される。焦点鏡枠24は、コマ26,27の間で挟持されて、焦点鏡枠24の側縁端面25aがガイドピン20に向けて矢印D方向に圧接される。
【0045】
そして、調整ねじ18を締め付ける方向に回動させ、矢印E方向に移動させると、焦点鏡枠24は、コイルばね17のばね力に抗してガイドピン20に沿ってY方向にスライドする。
【0046】
さらに、焦点鏡枠24は、側面24a,24bが、図に示すZ軸方向及びX軸方向から見てハ字型に傾斜するように形成されているので、コマ26,27によって挟持されることにより、調整ねじ18の締め付けに伴って焦点鏡枠24は矢印F方向に、コマ26,27は矢印F方向と反対方向に押圧され、枠押え30と受け板14にそれぞれ圧接して保持される。
【0047】
【発明の効果】
以上のように本発明によれば、一本の調整ねじを回すことで、焦点鏡の十字線中心を、視準軸に垂直な面と、視準軸を含む鉛直面の交線上に合わせることができ、焦点鏡の調整に要する時間を削減することができ、作業効率性を向上させることが可能となる。また調整に熟練を必要とすることなく正確且つ簡単に焦点鏡の調整を行うことが可能となる。
【図面の簡単な説明】
【図1】本発明の焦点鏡調整装置の図2におけるА−А線断面説明図である。
【図2】本発明の焦点鏡調整装置の正面図である。
【図3】図1におけるB−B線断面説明図である。
【図4】焦点鏡枠,コマ,ガイドピンを示す斜視図である。
【図5】焦点鏡調整装置の測量機への取付を示す説明図である。
【図6】従来例を示す説明図である。
【符号の説明】
1 鏡筒
10 外枠
11a,11b 開口部
12 凹部
13 立壁
14 受け板
15 外枠固定ねじ
16 ばね受けねじ
17 コイルばね
18 調整ねじ
19 鋼球
20 ガイドピン
23 焦点鏡
24 焦点鏡枠
26,27 押えコマ
30 枠押え
S 焦点鏡調整装置
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a focus mirror adjustment device, and more particularly to a focus mirror adjustment device for a surveying instrument that adjusts a focus mirror provided in a level.
[0002]
[Prior art]
Conventionally, adjustment of the focusing mirror of the telescope has been performed by pushing and pulling screws provided in the four directions of the circumference of the focusing lens frame. However, there is an inconvenience that all four screws provided in the four directions around the focusing lens frame must be moved. Further, when the screw is tightened to fix the focus mirror in a predetermined position, the focus mirror inevitably moves, so adjustments must be made in view of that amount. Also, the inclination of the crosshair could not be adjusted.
[0003]
Therefore, a technique that can be adjusted with one screw has been proposed. For example, in Japanese Utility Model Laid-Open No. 61-24719, the loosely fitting portions of the adjusting screw and the mounting screw in the outer frame of the focusing screen are each formed in a long hole in the circumferential direction of the outer frame of the focusing screen, A technique is disclosed that includes a pulling mechanism for pulling to either the adjustment screw side or the mounting screw side.
[0004]
That is, according to this technique, the adjustment is made with a single screw, and “the rear end surface in the focusing screen outer frame (4) is brought into contact with the rear end in the focusing screen outer frame (4). A missing ring (6) is fixed in the vicinity, and a spring washer (7) is interposed between the rear end face of the focusing screen frame (3) and the front surface of the missing circle ring (6), thereby the focusing screen frame (3). Therefore, the focusing screen (1) is always formed so as to be pressed against the rear end surface of the projecting edge (5), that is, the front side of the focusing screen outer frame (4). Screw threading strips (8) and (9) that are long in the circumferential direction of the outer frame are provided at left and right symmetrical positions, and the threaded portion (10b) of the adjustment screw (10) is inserted into the threading strip strip (8). The screw portion (10b) is screwed into a screw hole (16) provided in the focusing screen frame (3), thus the head (10a) of the adjusting screw (10) and the focusing screen outer frame. 4) The curved washer (12a) is interposed between the outer surface of the screw 4 and the screw threaded portion (11b) of the mounting screw (11) is inserted into the threaded through hole (9). It is screwed into a screw hole (17) provided in the focusing screen frame (3), and the focusing screen frame (3) is supported by the mounting screw (11) and the previous adjustment screw (10). " The focusing screen frame (3) is always pulled by the pulling mechanism in the direction of the mounting screw (11) or the direction of the adjusting screw (10). " As described above, the elastic spring member (13) is interposed between the curved washer (12b) in contact with the outer surface of the focusing screen outer frame (4) and the head (11a) of the mounting screw (11). The mounting screw (11) is always elastically pulled outward, and thus the focusing screen frame (3) is elastically pulled toward the mounting screw (11) ". That (line 16 page 4 specification No. Sho 61-24719 to first row page 6).
[0005]
In addition to the above-mentioned Japanese Utility Model Publication No. 61-24719, Japanese Utility Model Publication No. 41-135 and the like are known as having screws with elastic means.
[0006]
Furthermore, Japanese Utility Model Laid-Open No. 54-118154 is known in addition to the above Japanese Utility Model Laid-Open No. 61-24719 as a device that can correct the inclination. In Japanese Utility Model Laid-Open No. 54-118154, “a first adjustment that adjusts the focal length (Z direction) of a holding plate fixed to the apparatus main body and an optical system such as a lens supported and mounted on the holding plate”. A mechanism, and a second adjustment mechanism that adjusts the reading element supported and mounted on the holding plate in the X direction, the Y direction, and the twist direction (Q direction) in a plane perpendicular to the Z direction, A technique is disclosed in which the position is adjusted in the X, Y, Z and Q directions via the first and second adjustment mechanisms mounted on the holding plate using the holding plate as a reference surface. That is, the Z-direction moving plate 16 is attached to the opposing surfaces of the holding plate 11 so as to be position adjustable with screws 27 at the four corners, and the Y-direction movement is performed by a differential screw 18 conventionally used for fine adjustment. . A pin 19 provided on the side of the Y-direction moving plate 16 facing the differential screw 18 is a guide pin that absorbs the movement by the differential screw 18. The differential screw 18 is formed by engraving one kind of screws L 1 and L 2 , and the Y-direction moving plate moves by Y = L 1 −L 2 by one rotation of the differential screw 18, and the lead L 1. And L 2 can be made closer to each other to make fine adjustment.
[0007]
The Y-direction moving plate is fitted to the Q-direction moving plate 23 on the side facing the holding plate 11 and covers the Y-direction moving plate 16 between the Q-direction moving plate 23 and the holding plate 11 in the X direction. The moving plate 17 and the X direction adjusting plate 20 are inserted. First, a substrate 24 that has determined the reading element 10 is integrally attached to the Q-direction moving plate 23 by means of fixed screws 26 and 26, and the other end of the Q-direction moving plate 23 is connected to the protrusion 16a of the Y-direction moving plate 16. They are engaged and displaced as the Y-direction moving plate 16 moves. The Q-direction moving plate 23 is supported by the X-direction adjusting plate 20 and the X-direction moving plate 17 by the Q-direction adjusting screw 25, but the Q-direction moving plate 23 in the portion through which the adjusting screw 25 is inserted has a smaller diameter than the screw diameter. A sufficiently large hole 25a is formed, and the twist adjustment in the Q direction is executed by sliding the substrate 24 on the X direction adjusting plate 20 within the range of the hole 25a. The Q-direction adjusting screw 25 is fastened with the twist adjusted, and the position is fixed. However, the Q-direction adjusting screw 25 is fastened in a state where the position adjustment in the Y direction and the position adjustment in the X direction described below are performed, and is placed in a loosened state during the adjustment operation.
[0008]
The position adjustment in the X direction is performed by adjusting the X direction moving plate 17 in the X direction by the X direction moving plate 17 that covers the Y direction moving plate 16 and is interposed between the X direction moving plate 23 and the X direction moving plate 17. This is executed by the rotation of the moving screw 21. The guide pin 22 provided in the X direction of the X direction moving plate 17 absorbs the X direction movement by the differential screw 21. The differential screw 21 is formed of a screw having a different lead like the differential screw 18 and is finely adjusted. When the X-direction moving plate 17 is moved by the rotation of the differential screw 21, the Y-direction moving plate 16 in the fitted state is also moved integrally with the movement, and is further supported by the X-direction fine adjustment plate 20. The base 24 is also moved in the X direction to adjust the position. (The specification of Japanese Utility Model Laid-Open No. 54-118154, page 4, line 14 to page 6, line 19).
[0009]
[Problems to be solved by the invention]
However, in the technique disclosed in Japanese Utility Model Publication No. 61-24719, adjustment is performed by screwing an adjustment screw or mounting screw directly into a frame that holds the focusing screen. In order to adjust the head, the head (10a) of the adjusting screw (10) or the head (11a) of the mounting screw (11) is tapped with a mallet or the like.
[0010]
In addition, the technique disclosed in Japanese Utility Model Publication No. 54-118154 is not only complicated in mechanism, but in the adjustment mechanism by pushing and pulling the screw, all four screws provided in the four directions around the focusing screen are moved. There was an inconvenience that it had to be troublesome. Further, when the screw is tightened to fix the focusing screen at a predetermined position, the focusing screen inevitably moves, so that adjustment may be made in anticipation of the movement.
[0011]
Therefore, the present applicant has proposed a technique for adjusting the focusing screen. For example, in the technique proposed in Japanese Patent Laid-Open No. 9-126753, as shown in FIG. 6, the adjusting screw 106 pushes the focusing screen frame presser 102 by turning the adjusting screw 106, thereby compressing the spring 105, In this technique, the focusing screen frame 101 and the focusing screen frame presser 102 are moved horizontally on a plane perpendicular to the collimation axis.
[0012]
However, in the above prior art, the V-groove 102a formed opposite to the focusing screen frame presser 102 is supported by the adjusting screw 106 and the pressing pin 104, so that the focusing screen frame 101 and the frame presser 102 are turned by turning the adjusting screw 106. When moving in the horizontal direction, it also rotates in the circumferential direction, and the crosshairs of the focusing screen are tilted. Therefore, by loosening the screws 107 and turning the focusing screen frame 101 along the long holes 101b, the crosshairs It was necessary to adjust the inclination of the. That is, it is necessary to adjust the inclination of the crosshairs, and the adjustment mechanism is complicated accordingly.
[0013]
An object of the present invention is to provide a focusing mirror adjusting device that can easily adjust the crosshair position of the focusing mirror with a single adjusting screw.
[0014]
[Means for Solving the Problems]
In the focusing mirror adjusting apparatus according to claim 1 of the present invention, a frame presser is fixed to the front surface side of the ring-shaped outer frame, a receiving plate is fixed to the rear surface side, and guide pins extending vertically are provided inside the outer frame. A wedge-shaped focusing lens frame that surrounds the focusing mirror is supported vertically by a pair of frames, a compression spring acts on one frame, and an outer frame is formed on the other frame. An adjusting screw that is threadedly engaged with the female screw portion is engaged, and the focusing lens frame slides up and down along the guide pin by the rotation of the adjusting screw.
[0015]
Further, it is preferable that an engagement hole is formed in the pair of pieces, and the spring receiving screw and the adjusting screw are respectively engaged with the engagement hole. At this time, it is preferable that the contact surfaces of the focusing lens frame and the frame are inclined surfaces, and the focusing lens frame is pressed against the frame holder and the frame is pressed against the receiving plate as the adjusting screw is tightened. is there. In addition, it is preferable that a steel ball is disposed in an engagement hole formed in the piece located on the adjustment screw side, and the adjustment screw and the piece are in contact with each other through the steel ball. Further, the guide pin is preferably a round bar.
[0016]
[Action]
In the focus mirror adjusting device of the present invention, a guide pin extending vertically is disposed inside a ring-shaped outer frame, and a wedge-shaped focus lens frame surrounding the focus mirror is supported in the vertical direction by a pair of frames. It is configured. A compression spring acts on one of the pieces, and an adjustment screw that is screwed into a female screw portion formed on the outer frame is engaged with the other piece.
[0017]
The wedge-shaped focusing lens frame is sandwiched by the spring force of the compression spring through the pair of frames in the vertical direction as described above so that the side edge end surface of the focusing lens frame comes into contact with the guide pin. Is retained. Then, by rotating the adjustment screw, the focusing lens frame is slid up and down while being in contact with the guide pin and the frame presser, thereby adjusting the focusing lens.
[0018]
As described above, according to the focus mirror adjusting apparatus of the present invention, since the adjustment can be performed with one screw, the time required for adjusting the focus mirror can be reduced, and the work efficiency can be improved. Become. In addition, the focus mirror can be adjusted accurately and easily without requiring skill.
[0019]
In addition, the engagement holes are formed in the pair of pieces, and the spring receiving screws and the adjusting screws are engaged with the engagement holes, respectively, thereby preventing displacement of the pieces in the outer frame. Further, by forming the contact surfaces of the focusing lens frame and the frame on inclined surfaces, the focusing lens frame is pressed against the frame holder and the frame is pressed against the receiving plate as the adjusting screw is tightened. Tilt can be prevented.
[0020]
In addition, by making the guide pin that guides the focal lens frame into a round bar, the focal lens frame can always make line contact with the guide pin instead of surface contact, and the guide pin can be easily arranged in the outer frame. can do.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
One of the crosshairs of the focusing mirror 23 is set in advance in parallel with the side edge end surface 25a corresponding to the trapezoidal lower base of the focusing mirror frame 24. The focusing mirror adjusting device S has a ring-shaped outer frame 10, and a frame presser 30 is disposed on the front side of the outer frame 10, and a receiving plate 14 is disposed on the rear side.
[0022]
Further, a guide pin 20 extending vertically is disposed inside the outer frame 10. The focusing mirror 23 is surrounded by a wedge-shaped focusing lens frame 24. The focusing lens frame 24 is sandwiched in the front-rear direction by a frame retainer 30 and a receiving plate 14, and is supported in a vertical direction by a pair of frames 26 and 27. ing. A coil spring 17 as a compression spring acts on one piece 26, and an adjustment screw 18 that engages with a female screw portion 18 c formed on the outer frame 10 is engaged with the other piece 27.
[0023]
The wedge-shaped focusing lens frame 24 is sandwiched by the spring force of the coil spring 17 via a pair of tops 26 and 27 in the vertical direction, whereby the side edge end surface 25a of the focusing lens frame 24 is attached to the guide pin 20. It is held so as to abut. When the adjustment screw 18 is rotated in this state, the focusing lens frame 24 is accurately slid in the Y-axis direction while being in contact with the guide pins 20 and the focusing lens frame presser 30.
[0024]
An engagement hole 26 b is formed on the side of the top 26 that engages with the spring receiving screw 16, and the spring receiving screw 16 is engaged with this engaging hole, and the side of the top 27 that engages with the adjusting screw 18. The engagement holes 27b are formed in the engagement holes, and the adjustment screws are engaged with the engagement holes, so that the tip ends of the respective screws engage with the engagement holes 26b and 27b. The displacement in the direction (X-axis direction) can be prevented.
[0025]
Further, the contact surface between the focusing lens frame 24 and the tops 26 and 27 is formed so as to be inclined in a C shape when viewed from the X-axis direction and the Z-axis direction, whereby the adjustment screw 18 is tightened. It is possible to prevent the focal lens frame 24 from being tilted by the focal lens frame 24 being pressed against the frame holder 30 and the frames 26 and 27 being pressed against the receiving plate 14. Further, by using the guide pin 20 that guides the focusing lens frame 24 as a round bar, the focusing lens frame 24 can always make line contact with the guide pin 20 instead of surface contact, and the guide pin 20 in the outer frame 10 can be in contact with the guide pin 20. Can be easily arranged.
[0026]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The members, arrangements, and the like described below are not intended to limit the present invention and can be variously modified within the scope of the gist of the present invention.
[0027]
1 to 5 show an embodiment according to the present invention. FIG. 1 is a cross-sectional explanatory view corresponding to А-А of the focus mirror adjusting apparatus of the present invention shown in FIG. 2, and FIG. 2 is a focus of the present invention. 3 is a front view of the mirror adjustment device, FIG. 3 is a cross-sectional explanatory view corresponding to BB of the focus mirror adjustment device of the present invention shown in FIG. 1, FIG. 4 is a perspective view showing a focus mirror frame, a frame, and a guide pin. These are explanatory drawings which show attachment to the surveying instrument of a focusing mirror adjustment apparatus.
[0028]
The focus mirror adjustment device S of the present invention relates to a focus mirror adjustment device in a surveying instrument such as a level, for example, and includes an outer frame 10, a frame press 30 positioned on the front side of the outer frame, and a rear side of the outer frame. The receiving plate 14 positioned, the focusing lens frame 24 disposed in the outer frame 10, the focusing mirror 23 surrounded by the focusing lens frame 24, the dust-proof glass 28 attached to the focusing mirror, and the focusing lens frame 24. The main components are the pieces 26 and 27 that support the spring, the spring receiving screw 16, the coil spring 17 as a compression spring attached to the spring receiving screw 16, the adjusting screw 18, and the guide pin 20.
[0029]
The outer frame 10 is a ring-shaped eyepiece outer frame. The outer frame 10 has an opening 11a that opens outward when the focusing device S is arranged in the surveying instrument, and an opening 11b that opens to the lens barrel 1 side. The opening 11a is formed to be smaller than the opening 11b, and the bottom 11c is located at the peripheral edge of the opening 11a.
[0030]
The outer frame 10 is formed with a plurality of screw holes 15a for engaging outer frame fixing screws 15 for attaching the focusing mirror adjusting device S to the lens barrel 1 of the surveying instrument.
[0031]
A receiving plate 14 is disposed in the opening 11a. The receiving plate 14 is a circular plate material provided with a circular hole 14a in the center. The peripheral edge portion of the receiving plate 14 is placed on the bottom portion 11c and disposed so that the circular hole 14a is exposed from the opening portion 11a. At this time, a space surrounded by the receiving plate 14 and the outer frame 10 is defined as a recess 12.
[0032]
As shown in FIG. 3, the outer frame 10 is provided with a spring receiving screw 16 having a coil spring 17 and an adjusting screw 18 that are disposed so as to penetrate and face each other in the Y-axis direction. The spring receiving screw 16 is composed of a head portion 16a, a male screw portion 16b, and a rod portion 16c, and the inner diameter of the male screw portion 16b is formed larger than the inner diameter of the rod portion 16c. The coil spring 17 is engaged so as to surround the rod portion 16c. The adjusting screw 18 includes a head 18a and a male screw portion 18b.
[0033]
The spring receiving screw 16 and the adjusting screw 18 are engaged with screw holes formed in the outer frame 10 and penetrate the outer frame 10. In a screw hole through which the spring receiving screw 16 passes, a female screw portion 16d that can be screwed with the male screw portion 16b of the spring receiving screw 16 is formed. Similarly, a female screw portion 18c that can be screwed with the male screw portion 18b of the adjusting screw 18 is formed in the screw hole that penetrates the adjusting screw 18.
[0034]
The spring receiving screw 16 is attached by inserting the male screw portion 16b and the rod portion 16c into the screw hole and screwing the female screw portion 16d of the screw hole and the male screw portion 16b of the spring receiving screw 16 together. The adjustment screw 18 is attached by screwing the male screw portion 18b and the female screw portion 18c of the screw hole.
[0035]
In the recess 12 of the outer frame 10, a guide pin 20 is disposed in parallel with the Y axis at a position eccentric from the Y axis. The guide pin 20 is press-fitted and fixed in through holes 10 a and 10 a provided in the outer frame 10. In addition, by making this guide pin 20 into a round bar shape, the focusing lens frame 24 can always make line contact with the guide pin 20 instead of surface contact, and the guide pin 20 is disposed in the outer frame 10. Can be easily.
[0036]
The focusing mirror 23 is provided with a crosshair 23a and a stadia line (not shown), and is surrounded by and integrated with the focusing mirror frame 24. The focusing lens frame 24 is accommodated in the recess 12 of the outer frame 10. As shown in FIG. 4, the focusing lens frame 24 is a trapezoidal shape in which the side on the guide pin 20 side is longer than the opposing side, and the sides 24 c and 24 d are formed to be inclined in different directions in the vertical direction. Yes.
[0037]
Further, in the focusing lens frame 24 of this example, the side surfaces 24a and 24b continuing to the oblique sides 24c and 24d are formed so as to be inclined in a C shape when viewed from the Z-axis direction and the X-axis direction shown in the figure. .
[0038]
On the upper and lower sides of the focusing lens frame 24, presser frames 26 and 27 are disposed adjacent to the side surfaces 24a and 24b. As shown in FIGS. 1 and 3, the presser piece 26 is formed with an engagement hole 26 b with which the rod portion 16 c of the spring receiving screw 16 is engaged. The engagement hole 26b is formed to have a size capable of engaging with the rod portion 16c and smaller than the diameter of the coil spring 17. Accordingly, the coil spring 17 attached to the peripheral edge of the rod portion 16c is interposed between the male screw portion 16b of the spring receiving screw 16 and the peripheral edge of the engagement hole 26b.
[0039]
The presser piece 27 is formed with an engagement hole 27b with which the adjustment screw 18 is engaged. At this time, by accommodating the steel ball 19 in the engagement hole 27b, friction between the adjustment screw 18 and the engagement hole 27b can be reduced, and smooth rotation and wear of the adjustment screw 18 can be reduced. it can.
[0040]
Further, as shown in FIG. 4, the pressing pieces 26 and 27 are formed so as to be inclined so that the surfaces 26 a and 27 a adjacent to the side surfaces 24 a and 24 b of the focusing lens frame 24 are aligned with the side surfaces 24 a and 24 b of the focusing lens frame 24. Has been. With such a configuration, as the adjustment screw 18 is tightened, the focusing lens frame 24 can be brought into pressure contact with the frame presser 30 and the pressing pieces 26 and 27 against the receiving plate 14, respectively. Tilt in the frame 10 can be prevented.
[0041]
In addition, although the structure in which the spring receiving screw 16 and the adjusting screw 18 to the presser pieces 26 and 27 abut on the right side of the presser pieces 26 and 27 is shown, the present invention is not limited to this, and the center position of the presser pieces 26 and 27 is shown. You may comprise so that it may contact | abut. In any case, it is assumed that the line connecting the center lines of the spring receiving screw 16 and the adjusting screw 18 is parallel to the Y axis.
[0042]
The frame presser 30 is disposed in the opening 11 b of the outer frame 10. The frame presser 30 has a male screw portion 30a on the outer peripheral side surface portion. A cylindrical standing wall 13 is formed on the periphery of the opening of the outer frame 10, and a female screw portion (not shown) is formed on the standing wall 13. By disposing the male threaded portion 30a of the frame retainer 30 while being screwed into the female thread of the standing wall 13 of the opening 11b and turning it, the frame retainer 30 is provided with the focusing lens frame 24 and the retainer piece 26 in the recess 12 of the outer frame 10. , 27 abuts on the abutting surface 32 and presses the focusing lens frame 24 and the presser pieces 26, 27 toward the receiving plate 14 to restrain the movement in the front-rear direction (Z-axis direction). In addition, the holes 31 and 31 provided in the frame presser 30 shown in FIG. 1 are engagement holes for engaging a fixture for attaching the frame presser 30 to the opening 11b.
[0043]
Next, a method for attaching the focusing mirror adjusting device S to the lens barrel 1 of the surveying instrument will be described. As shown in FIG. 5, the lens barrel 1 is formed with an opening 1 a and a screw hole 1 b for attaching the focusing mirror adjusting device S. The opening 1a is formed in a size that allows the standing wall 13 of the outer frame 10 to be fitted. Focusing mirror adjustment is performed by fitting the standing wall 13 of the outer frame 10 to the opening 1a and further tightening the outer frame fixing screw 15 by engaging with the screw hole 15a of the outer frame 10 and the screw hole 1a of the lens barrel 1. The device S is attached to the lens barrel 1.
[0044]
Next, the operation of the focusing mirror adjustment apparatus S having the above configuration will be described. As shown in FIG. 4, the focusing lens frame 24 is pressed in the arrow C direction by the spring force of the coil spring 17 from the top 26 side through a pair of tops 26 and 27 in the vertical direction. The focus lens frame 24 is sandwiched between the frames 26 and 27, and the side edge face 25 a of the focus lens frame 24 is pressed against the guide pin 20 in the direction of arrow D.
[0045]
When the adjustment screw 18 is rotated in the direction of tightening and moved in the direction of arrow E, the focusing lens frame 24 slides in the Y direction along the guide pin 20 against the spring force of the coil spring 17.
[0046]
Furthermore, the focal lens frame 24 is formed so that the side surfaces 24a and 24b are inclined in a C shape when viewed from the Z-axis direction and the X-axis direction shown in FIG. Accordingly, as the adjusting screw 18 is tightened, the focusing lens frame 24 is pressed in the direction of arrow F, and the tops 26 and 27 are pressed in the direction opposite to the direction of arrow F, and are held in pressure contact with the frame holder 30 and the receiving plate 14, respectively. .
[0047]
【The invention's effect】
As described above, according to the present invention, the center of the crosshairs of the focusing mirror is aligned with the intersection line of the plane perpendicular to the collimation axis and the vertical plane including the collimation axis by turning one adjustment screw. Thus, the time required for adjusting the focusing mirror can be reduced, and the working efficiency can be improved. In addition, the focus mirror can be adjusted accurately and easily without requiring skill in adjustment.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view taken along a line А-А in FIG. 2 of a focusing mirror adjusting apparatus according to the present invention.
FIG. 2 is a front view of the focusing mirror adjustment apparatus of the present invention.
FIG. 3 is a cross-sectional explanatory view taken along the line BB in FIG. 1;
FIG. 4 is a perspective view showing a focusing lens frame, a frame, and a guide pin.
FIG. 5 is an explanatory diagram showing attachment of the focus mirror adjusting device to a surveying instrument.
FIG. 6 is an explanatory diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lens barrel 10 Outer frame 11a, 11b Opening part 12 Recess 13 Standing wall 14 Receiving plate 15 Outer frame fixing screw 16 Spring receiving screw 17 Coil spring 18 Adjustment screw 19 Steel ball 20 Guide pin 23 Focusing mirror 24 Focusing lens frame 26, 27 Presser Top 30 Frame presser S Focusing mirror adjustment device

Claims (5)

リング状の外枠の前面側には枠押さえが、背面側には受け板がそれぞれ固定され、
外枠内部には上下に延びるガイドピンが配設されるとともに、焦点鏡を囲繞する楔型の焦点鏡枠が一対のコマによって上下方向に支持され、
一方のコマにはばね受けねじに取り付けられた圧縮ばねが作用し、他方のコマには外枠に形成された雌ねじ部に螺合貫通する調整ねじが係合し、
該調整ねじの回動によって前記焦点鏡枠がガイドピンに沿って上下にスライドすることを特徴とする焦点鏡調整装置。
A frame retainer is fixed to the front side of the ring-shaped outer frame, and a backing plate is fixed to the back side.
A guide pin extending vertically is disposed inside the outer frame, and a wedge-shaped focus mirror frame surrounding the focus mirror is supported in the vertical direction by a pair of frames,
A compression spring attached to a spring receiving screw acts on one of the pieces, and an adjustment screw that engages with a female screw formed on the outer frame engages with the other piece.
A focusing mirror adjusting device, wherein the focusing lens frame slides up and down along a guide pin by rotation of the adjusting screw.
前記一対のコマには係合孔が形成され、該係合孔に前記ばね受けねじ及び前記調整ねじがそれぞれ係合したことを特徴とする請求項1記載の焦点鏡調整装置。The focusing mirror adjusting device according to claim 1, wherein an engagement hole is formed in the pair of pieces, and the spring receiving screw and the adjustment screw are engaged with the engagement hole, respectively. 前記焦点鏡枠と前記コマとの当接面をそれぞれ傾斜面とし、調整ねじの締め付けに伴って焦点鏡枠が枠押えに、コマが受け板に圧接されるように形成したことを特徴とする請求項2記載の焦点鏡調整装置。The contact surfaces of the focusing lens frame and the frame are inclined surfaces, and the focusing lens frame is formed to press the frame and the frame is pressed against the receiving plate as the adjusting screw is tightened. The focus mirror adjusting apparatus according to claim 2. 前記調整ねじ側に位置するコマに形成された係合孔には鋼球が配設され、該鋼球を介して前記調整ねじと前記コマとが当接することを特徴とする請求項2記載の焦点鏡調整装置。3. A steel ball is disposed in an engagement hole formed in the piece positioned on the adjustment screw side, and the adjustment screw and the piece are in contact with each other via the steel ball. Focusing mirror adjustment device. 前記ガイドピンは丸棒であることを特徴とする請求項1乃至4いずれか記載の焦点鏡調整装置。5. The focus mirror adjusting device according to claim 1, wherein the guide pin is a round bar.
JP05422798A 1998-02-20 1998-02-20 Focusing mirror adjustment device Expired - Fee Related JP3832532B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05422798A JP3832532B2 (en) 1998-02-20 1998-02-20 Focusing mirror adjustment device

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Application Number Priority Date Filing Date Title
JP05422798A JP3832532B2 (en) 1998-02-20 1998-02-20 Focusing mirror adjustment device

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JPH11237245A JPH11237245A (en) 1999-08-31
JP3832532B2 true JP3832532B2 (en) 2006-10-11

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Publication number Priority date Publication date Assignee Title
JP2003050128A (en) * 2001-08-07 2003-02-21 Sokkia Co Ltd Instrument for measuring distance and angle
CN205608269U (en) * 2016-01-27 2016-09-28 深圳市光峰光电技术有限公司 Lens module and optical device

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