JP4034023B2

JP4034023B2 - Holder for optical components

Info

Publication number: JP4034023B2
Application number: JP2000041233A
Authority: JP
Inventors: 剛治舩津
Original assignee: ペンタックス株式会社
Priority date: 2000-02-18
Filing date: 2000-02-18
Publication date: 2008-01-16
Anticipated expiration: 2020-02-18
Also published as: JP2001228388A

Description

【０００１】
【発明の属する技術分野】
本発明は複数の光学部品を保持する光学部品用ホルダーに関する。
【０００２】
【従来の技術】
正立プリズムなどのような複数の光学部品の組み合わせからなる光学ユニットは、各種の光学機器に組み込まれている。
このような光学ユニットを光学機器の内部で位置調節する場合、光学機器の内部において各光学部品自体を動かすのでは、調整の効率が悪く、また、光学部品が損傷するなどの不具合が生じる。
そこで、従来、複数の光学部品をホルダーで予め一体的に保持しておき、複数の光学部品の位置調節は、光学機器の内部でこのホルダーを動かし、１つの光学ユニットとしての位置調節を行なうことでなされるように構成されている。
この種の光学部品用ホルダーは、基板と、基板の両側から起立する側板を有するホルダー本体を備えており、複数の光学部品は、両側板の間の空間にそれぞれ配設される。
【０００３】
【発明が解決しようとする課題】
このような光学部品用ホルダーにおいて、ホルダー本体を構成する両側の側板は基板の両側から起立しているので、互いに離間接近する方向への倒れや同一方向への傾く変形に対して弱く、何らかの補強対策が必要となる。
しかし、基板の全周から側板を起立させた筐状にホルダー本体を形成すると、内部への光学部品の配設作業性が悪くなり、また、光学部品を組み込むためにホルダー本体内に余分なスペースが必要となり、ホルダー本体の大型化を招く。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、光学部品の配設用スペースを増加させることなくホルダー本体の剛性を高め、また、組み立ても簡単に行なえる光学部品用ホルダーを提供することにある。
【０００４】
【課題を解決するための手段】
前記目的を達成するため本発明は、基板と、基板の両側から起立する側板を有するホルダー本体を備え、前記両側の側板の間の空間に光学部品が配設される光学部品用ホルダーであって、前記基板の面に対して交わり、かつ、前記両側の側板の内面に対してそれぞれ交わる角度で遮光絞りが配設され、前記遮光絞りは、両側の側板の互いに向かい合う内面間にわたって延在する幅を有する本体板部と、本体板部の幅方向両側から突設されたフランジとを備え、前記本体板部の幅方向の両側と、前記両側のフランジとに、基板に対する側板の倒れを阻止する係合部が設けられていることを特徴とする。
【０００５】
本発明では、光学部品用ホルダーに配置される遮光絞りを利用してホルダー本体の両側の側板が補強される。
【０００６】
【発明の実施の形態】
以下、光学部品用ホルダーが正立プリズムを保持するプリズムホルダーである実施の形態について図面を参照して説明する。
図１はプリズムホルダーの斜視図、図２はプリズムホルダーの分解斜視図、図３はプリズムホルダーの断面正面図を示す。
図１乃至図３に示すように、プリズムホルダー(特許請求の範囲の光学部品用ホルダーに相当)１０は２つのプリズム１２Ａ、ダハプリズム１２Ｂからなる正立プリズム１２を保持するもので、プリズムホルダー１０は、ホルダー本体１４と、遮光絞り１６と、蓋部材１８とで構成され、正立プリズム１２を保持するプリズムホルダー１０は２つ設けられ、それぞれ双眼鏡の左右の鏡胴に組み込まれる。
【０００７】
図４(Ａ)はホルダー本体の正面図、(Ｂ)は同平面図、(Ｃ)は(Ｂ)のＣＣ断面図、図５(Ａ)は図４(Ｂ)のＸ矢視図、(Ｂ)は同底面図、(Ｃ)は図４(Ｂ)のＹＹ断面図を示す。
前記ホルダー本体１４は、図４、図５に示すように、平面視長方形の基板１４０２と、この長方形の長辺をなす基板１４０２の両側から起立する側板１４０４と、長方形の短辺をなす基板１４０２の両側から起立する端面板１４０６を備えている。
前記基板１４０２のほぼ中央には円形の開口１４０７が貫通形成され、基板１４０２の上面には、遮光絞り１６の下端を位置決めするための凹部１４０８が２つ形成されている。
前記両側の側板１４０４は、互いに等しい高さで互いに平行して延在する上辺１４１０と、前記上辺１４１０の延在方向の両端から前記基板１４０２側に斜めに延在する傾斜辺１４１２と、傾斜辺１４１２の下端から上辺１４１０に平行して延在する中間辺１４１４と、中間辺１４１４の端部から下方に延在する下辺１４１６を有する。
前記端面板１４０６は両側の下辺１４１６の下端を接続するように設けられ、前記下辺１４１６には係合凹部１４１７が形成されている。
【０００８】
前記上辺１４１０の延在方向の端部寄り箇所には上方に開放状の長溝１４１８が形成されている。
また、両側の側板１４０４の外面で前記上辺１４１０の上縁に沿った箇所に、側板１４０４の肉厚を薄くするように側板１４０４の外面よりも高さを低くした薄肉部１４２０が設けられ、この薄肉部１４２０は前記長溝１４１８の縁に沿っても延在形成されている。
そして、図５(Ａ)、(Ｃ)で示すように、両側の側板１４０４の互いに向かい合う内面１４０４Ａ間の寸法および両側の側板１４０４の薄肉部１４２０の外面１４２０Ａ間の寸法は高い寸法精度で形成されている。
また、両側の側板１４０４には２つのプリズム１２Ａ、ダハプリズム１２Ｂを接着するための開口１４２２，１４２４が設けられている。
【０００９】
図６(Ａ)は遮光絞りの平面図、(Ｂ)は(Ａ)のＢＢ断面図、(Ｃ)は(Ａ)のＣＣ断面図、(Ｄ)は(Ｃ)のＤ矢視図を示す。
前記遮光絞り１６は、図６に示すように、本体板部１６０２と、フランジ１６０４と、爪部１６０６などで構成されている。
前記本体板部１６０２は、ホルダー本体１４の両側の側板１４０４間にわたって延在する幅で、この幅よりも大きい寸法で延在するほぼ長方形に形成されている。
前記本体板部１６０２の幅、すなわち、両側の側面１６０２Ａ間の寸法は、図９に示すように、遮光絞り１６を両側の側板１４０４間に挿入した際に、両側の側面１６０２Ａがそれぞれ両側の側板１４０４の内面１４０４Ａに隙間なく係合されるように、高い寸法精度で形成されている。なお、本実施の形態では前記側面１６０２Ａが特許請求の範囲の第１係合部に相当している。
【００１０】
前記本体板部１６０２の幅方向両側には、本体板部１６０２の長手方向のほぼ全長にわたって補強用のリブ１６０８が膨出形成され、また、本体板部１６０２の長手方向の一端寄りに開口１６１０が貫通形成されている。前記爪部１６０６は、前記本体板部１６０２の一端から本体板部の幅方向に間隔をおいて２つ突出形成され、爪部１６０６は前記ホルダー本体１４の凹部１４０８に係合可能に形成されている。
前記フランジ１６０４は、本体板部１６０２の長手方向の他端寄りで幅方向両側から突設されている。本実施の形態では、本体板部１６０２の長手方向の他端寄りの両側の側面１６０２Ａから軸１６１２が突出され、フランジ１６０４はこの軸１６１２の先端に円板状に形成されている。
前記軸１６１２は前記ホルダー本体１４の長溝１４１８に挿入可能な直径で形成され、また、両側のフランジ１６０４が互いに向かい合う内面１６０４Ａ間の寸法は、軸１６１２を長溝１４１８に挿入した際、図９に示すように、両側のフランジ１６０４の内面１６０４Ａがそれぞれ両側の側板１４０４の薄肉部１４２０の外面１４２０Ａに隙間なく係合されるように、高い寸法精度で形成されている。なお、本実施の形態では前記内面１６０４Ａが特許請求の範囲の第２係合部に相当している。
【００１１】
図７(Ａ)は蓋部材の平面図、(Ｂ)は(Ａ)のＢＢ断面図、(Ｃ)は同底面図、図８(Ａ)は蓋部材の正面図、(Ｂ)は(Ａ)のＢＢ断面図を示す。
前記蓋部材１８は前記ホルダー本体１４の両側板１４０４の先端間にわたって配設されている。より詳細には、図７、図８に示すように、蓋部材１８は、両側板１４０４の上辺１４１０間を塞ぐ平面視長方形の上面１８０２と、両側板１４０４の傾斜辺１４１２間を塞ぐ傾斜面１８０４と、両側板１４０４の中間辺１４１４間を塞ぐ中間面１８０６と、両側板１４０４の下辺１４１６間を塞ぐ下面１８０８などを備え、本実施の形態では、これら上面１８０２、傾斜面１８０４、中間面１８０６、下面１８０８により特許請求の範囲の閉塞板部が構成されている。
前記上面１８０２のほぼ中央には円形の開口１８１０が貫通形成されている。また、長方形の長辺をなす上面１８０２の両側部の内面からそれぞれ側板１８１２が垂設されている。
【００１２】
前記両側板１８１２が互いに向かい合う内面で側板１８１２の下縁に沿った箇所に、側板１８１２の肉厚を薄くするように側板１８１２の内面よりも高さを低くした薄肉部１８１４が設けられている。
前記薄肉部１８１４が互いに向かい合う内面１８１４Ａ間の寸法は、蓋部材１８の上面１８０２をホルダー本体１４の両側板１４０４の上辺１４１０間に被せた際に、図１０に示すように、両側の薄肉部１８１４の内面１８１４Ａが両側の側板１４０４の薄肉部１４２０の外面１４２０Ａに隙間なく係合されるように、高い寸法精度で形成されている。なお、本実施の形態では前記内面１８１４Ａが特許請求の範囲の第３係合部に相当している。
また、両側の薄肉部１８１４の内面１８１４Ａには、蓋部材１８の上面１８０２をホルダー本体１４の両側板１４０４の上辺１４１０間に被せた際に、両側板１４０４の長溝１４１８にそれぞれ挿入係合される凸部１８１６が形成されている。
【００１３】
そして、薄肉部１８１４の内面１８１４Ａと薄肉部１４２０の外面１４２０Ａを係合させて蓋部材１８の上面１８０２をホルダー本体１４の両側板１４０４の上辺１４１０間に被せた状態で、前記薄肉部１８１４の外面を含む蓋部材１８の両側の側面と、ホルダー本体１４の側板１４０４の外面とは同一面上に位置するように形成されている(図９参照)。
また、蓋部材１８の上面１８０２で両側板１４０４の上辺１４１０間を塞ぎ、傾斜面１８０４で両側板１４０４の傾斜辺１４１２間を塞ぎ、中間面１８０６で両側板１４０４の中間辺１４１４間を塞ぎ、下面１８０８で両側板１４０４の下辺１４１６間を塞いだ状態を保持する爪片１８１８が設けられている。
【００１４】
前記爪片１８１８は、図７(Ｃ)に示すように、スリット１８２０を介して前記下面１８０８の両側にそれぞれ設けられ、図８(Ａ)、(Ｂ)に示すように、上記のように蓋部材１８で両側板１４０４間を塞いだ状態で両側板１４０４の係合凹部１４１７に係合する凸部１８１８Ａを備えている。
また、両側の爪片１８１８の内側に位置する下面１８０８の両側箇所には、蓋部材１８で両側板１４０４間を塞いだ状態で、図１１に示すように、両側の側板１４０４の下辺１４１６の内面１４０４Ａに隙間なく係合する外面１８２２が形成されている。なお、本実施の形態では前記外面１８２２が特許請求の範囲の第４係合部に相当している。
前記２つの下面１８０８のうち一方の下面１８０８には、プリズム１２Ａの稜線を跨ぐ脚部１８２４が突設され、この脚部１８２４はホルダー本体１４の２つの端面板１４０６のうちの一方の端面板１４０６の欠部１４２４(図４Ｂ、図５Ａ参照)に挿入される。
【００１５】
次に、プリズムホルダー１０を組み立てる場合について説明する。
まず、プリズム１２Ａがホルダー本体１４の基板１４０２上で両側板１４０４の間の空間に収容され、次に、軸１６１２が長溝１４１８に挿入され爪部１６０６が凹部１４０８に係合されて遮光絞り１６がホルダー本体１４の基板１４０２上で両側板１４０４の間の空間に挿入される。次に、ダハプリズム１２Ｂが、両側板１４０４の間で遮光絞り１６上に収容され、これらプリズム１２Ａ、１２Ｂは両側板１４０４の開口１４２２、１４２４の縁に沿って流出された接着剤により両側板１４０４に接着され、固定される。
そして、プリズム１２Ａ、ダハプリズム１２Ｂがホルダー本体１４の両側板１４０４に固定された後、蓋部材１８が両側板１４０４間に被せられてプリズムホルダー１０とされ、このようにプリズム１２Ａ、ダハプリズム１２Ｂが組み込まれたプリズムホルダー１０は２つ設けられる。
各プリズムホルダー１０は、それぞれ双眼鏡の左右の鏡胴に組み込まれ、プリズムホルダー１０は接眼レンズと共に光軸方向に動かされ、対物レンズとの距離を変えることでピント調整が行なわれるように構成されている。
図３の矢印Ａ、Ｂ、Ｃで示すように、対物レンズで収斂される光束は、蓋部材１８の開口１８１０、プリズム１２Ａ、遮光絞り１６の開口１６１０、ダハプリズム１２Ｂ、ホルダー本体１４の開口１４０７を順に通過し、その上下左右がプリズム１２Ａ、１２Ｂにより反転され、接眼レンズに導かれる。その際、前記開口１８１０、１６１０、１４０７により迷光が遮断され、画像の鮮明化が図られる。
【００１６】
本実施の形態では、軸１６１２が長溝１４１８に挿入され爪部１６０６が凹部１４０８に係合されて遮光絞り１６がホルダー本体１４の基板１４０２上で両側板１４０４の間の空間に挿入されると、遮光絞り１６の両側の側面１６０２Ａが、ホルダー本体１４の両側の側板１４０４の内面１４０４Ａに隙間なく係合され、これによりホルダー本体１４の両側の側板１４０４の内側への倒れが阻止され、両側の側板１４０４が内側方向(互いに近づく方向)に対して補強されることになる。
また、遮光絞り１６の両側のフランジ１６０４の内面１６０４Ａが、ホルダー本体１４の両側の側板１４０４の薄肉部１４２０の外面１４２０Ａに隙間なく係合され、これによりホルダー本体１４の両側の側板１４０４の外側への倒れが阻止され、両側の側板１４０４が外側方向(互いに離れる方向)に対して補強されることになる。
【００１７】
そして、遮光絞り１６は、ホルダー本体１４の基板１４０２に対して、平行ではなく交わる角度で配設され、かつ、両側の側板１４０４の内面１４０４Ａに対してそれぞれ交わる角度(本実施の形態では９０度)で配設されているので、ホルダー本体１４の剛性が高められ、基板１４０２の両側からそれぞれ起立する側板１４０４の、互いに離間接近する方向への倒れや同一方向への傾く変形を阻止する上で極めて有利となる。
さらに、本実施の形態では、遮光絞り１６を、側板１４０４の高さ方向のほぼ全長にわたって延在させたので、ホルダー本体１４の剛性を高める上でより有利となっている。
また、遮光絞り１６を、ホルダー本体１４の基板１４０２に対して、平行ではなく交わる角度で配設したので、プリズム１２Ａをホルダー本体１４に組み込み、その後、遮光絞り１６を挿入し、最後にダハプリズム１２Ｂを組み込むことができ、光学部品の配設作業性に優れると共に、余分なスペースを確保することなくホルダー本体１４を補強でき、ホルダー本体１４の大型化を招く不具合もない。
したがって、プリズムホルダー１８の構成部材である遮光絞り１６を利用することで、部品点数を増加することなく、また、組み立てを複雑化することなくホルダー本体１４の側板１４０４を補強することができる。
【００１８】
また、本実施の形態では、蓋部材１８を用いてプリズムホルダー１８を構成しており、蓋部材１８をホルダー本体１４に被せると、蓋部材１８の両側の薄肉部１８１４の内面１８１４Ａが、ホルダー本体１４の両側の側板１４０４の薄肉部１４２０の外面１４２０Ａに隙間なく係合され、これによりホルダー本体１４の両側の側板１４０４の外側への倒れが阻止され、両側の側板１４０４が外側方向(互いに離れる方向)に対して補強されることになる。
また、蓋部材１８の両側の爪片１８１８の内側に位置する下面１８０８の外面１８２２が、ホルダー本体１４の両側の側板１４０４の下辺１４１６の内面１４０４Ａに隙間なく係合され、これによりホルダー本体１４の両側の側板１４０４の内側への倒れが阻止され、両側の側板１４０４が内側方向(互いに近づく方向)に対して補強されることになる。
したがって、プリズムホルダー１８の構成部材である蓋部材１８を利用することで、部品点数を増加することなく、また、組み立てを複雑化することなくホルダー本体１４の側板１４０４を補強することができる。
【００１９】
なお、本実施の形態では、プリズムホルダー１０が、ホルダー本体１４と、遮光絞り１６と、蓋部材１８との３つの部材で構成されている場合について説明したが、蓋部材１８のないプリズムホルダー１０にも本発明は適用される。
また、本実施の形態では、光学部品がプリズムの場合について説明したが、光学部品はレンズなどプリズム以外のものであってもよい。
【００２０】
【発明の効果】
以上の説明で明らかなように本発明は、光学部品用ホルダーの構成部材である遮光絞りを利用してホルダー本体の両側の側板を補強するようにした。
そのため、本発明によれば、部品点数を増加させることなく、また、組み立てを複雑化することなくホルダー本体の両側の側板の補強を行なうことが可能となる。
また、本発明によれば、光学部品用ホルダーが蓋部材を備える場合、この蓋部材も利用してホルダー本体の両側の側板を補強するようにした。
そのため、本発明によれば、部品点数を増加させることなく、また、組み立てを複雑化することなくホルダー本体の両側の側板の補強をより強固に行なうことが可能となる。
【図面の簡単な説明】
【図１】プリズムホルダーの斜視図である。
【図２】プリズムホルダーの分解斜視図である。
【図３】プリズムホルダーの断面正面図である。
【図４】 (Ａ)はホルダー本体の正面図、(Ｂ)は同平面図、(Ｃ)は(Ｂ)のＣＣ断面図である。
【図５】 (Ａ)は図４(Ｂ)のＸ矢視図、(Ｂ)は同底面図、(Ｃ)は図４(Ｂ)のＹＹ断面図である。
【図６】 (Ａ)は遮光絞りの平面図、(Ｂ)は(Ａ)のＢＢ断面図、(Ｃ)は(Ａ)のＣＣ断面図、(Ｄ)は(Ｃ)のＤ矢視図である。
【図７】 (Ａ)は蓋部材の平面図、(Ｂ)は(Ａ)のＢＢ断面図、(Ｃ)は同底面図である。
【図８】 (Ａ)は蓋部材の正面図、(Ｂ)は(Ａ)のＢＢ断面図である。
【図９】遮光絞りの両側の側面がホルダーの両側の側面の内面に隙間なく係合され、両側のフランジの内面がホルダーの両側の側板の薄肉部の外面に隙間なく係合された状態を示す断面側面図である。
【図１０】蓋部材の両側の薄肉部の内面がホルダーの両側の薄肉部の外面に隙間なく係合された状態を示す断面側面図である。
【図１１】蓋部材の下面の両側の外面がホルダーの両側の側板の下辺の内面に隙間なく係合された状態を示す断面平面図である。
【符号の説明】
１０プリズムホルダー
１２正立プリズム
１２Ａプリズム
１２Ｂダハプリズム
１４ホルダー本体
１４０２基板
１４０４側板
１６遮光絞り
１６０２本体板部
１６０４フランジ
１８蓋部材
１８０２上面
１８１２側板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical component holder that holds a plurality of optical components.
[0002]
[Prior art]
An optical unit composed of a combination of a plurality of optical components such as an erecting prism is incorporated in various optical devices.
When adjusting the position of such an optical unit within the optical device, moving each optical component itself within the optical device results in poor adjustment efficiency and causes problems such as damage to the optical component.
Therefore, conventionally, a plurality of optical components are integrally held in advance by a holder, and the position adjustment of the plurality of optical components is performed by moving the holder inside the optical device and adjusting the position as one optical unit. It is configured to be made with.
This type of optical component holder includes a holder body having a substrate and side plates standing from both sides of the substrate, and the plurality of optical components are respectively disposed in spaces between the side plates.
[0003]
[Problems to be solved by the invention]
In such optical component holders, the side plates on both sides constituting the holder body stand up from both sides of the substrate, so that they are weak against tilting toward and away from each other and tilting in the same direction, and some reinforcement Countermeasures are required.
However, if the holder body is formed in a casing with the side plates erected from the entire circumference of the board, the workability of placing optical components inside deteriorates, and extra space is required in the holder body to incorporate the optical components. Is required, leading to an increase in the size of the holder body.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to increase the rigidity of the holder main body without increasing the space for arranging the optical components, and to allow easy assembly. It is to provide a holder for parts.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is an optical component holder comprising a holder body having a substrate and side plates standing from both sides of the substrate, and an optical component is disposed in a space between the side plates on both sides, A light-shielding diaphragm is disposed at an angle that intersects the surface of the substrate and intersects with the inner surfaces of the side plates on both sides, and the light-shielding diaphragm has a width extending between the inner surfaces facing each other on the side plates on both sides. And a flange projecting from both sides in the width direction of the main body plate portion, and both sides of the main body plate portion in the width direction and the flanges on both sides prevent the side plate from collapsing with respect to the substrate. A joint portion is provided.
[0005]
In the present invention, the side plates on both sides of the holder main body are reinforced by using a light-shielding diaphragm disposed in the optical component holder.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the optical component holder is a prism holder for holding an erecting prism will be described with reference to the drawings.
1 is a perspective view of the prism holder, FIG. 2 is an exploded perspective view of the prism holder, and FIG. 3 is a sectional front view of the prism holder.
As shown in FIGS. 1 to 3, a prism holder (corresponding to a holder for optical components in the claims) 10 holds an erecting prism 12 including two prisms 12A and a roof prism 12B. Two prism holders 10 each including a holder main body 14, a light-shielding diaphragm 16, and a lid member 18 that hold the erecting prism 12 are provided, and are respectively incorporated in the left and right lens barrels of the binoculars.
[0007]
4A is a front view of the holder body, FIG. 4B is a plan view thereof, FIG. 4C is a CC cross-sectional view of FIG. 5B, FIG. 5A is a view taken along arrow X in FIG. B) is a bottom view thereof, and (C) is a YY sectional view of FIG. 4B.
As shown in FIGS. 4 and 5, the holder main body 14 includes a rectangular substrate 1402 in plan view, side plates 1404 erected from both sides of the long substrate 1402, and a rectangular short substrate 1402. End face plates 1406 standing up from both sides.
A circular opening 1407 is formed through substantially the center of the substrate 1402, and two recesses 1408 for positioning the lower end of the light-shielding stop 16 are formed on the upper surface of the substrate 1402.
The side plates 1404 on both sides include an upper side 1410 extending in parallel with each other at the same height, an inclined side 1412 extending obliquely from both ends in the extending direction of the upper side 1410 toward the substrate 1402, and an inclined side. It has an intermediate side 1414 extending in parallel with the upper side 1410 from the lower end of 1412 and a lower side 1416 extending downward from the end of the intermediate side 1414.
The end face plate 1406 is provided so as to connect the lower ends of the lower sides 1416 on both sides, and an engagement recess 1417 is formed on the lower side 1416.
[0008]
An open long groove 1418 is formed on the upper side 1410 near the end in the extending direction.
In addition, a thin portion 1420 having a lower height than the outer surface of the side plate 1404 is provided at a location along the upper edge of the upper side 1410 on the outer surface of the side plates 1404 on both sides. The thin portion 1420 is formed so as to extend along the edge of the long groove 1418.
Then, as shown in FIGS. 5A and 5C, the dimension between the inner surfaces 1404A of the side plates 1404 on both sides and the outer surface 1420A of the thin portion 1420 of the side plates 1404 on both sides are formed with high dimensional accuracy. ing.
Further, openings 1422, 1424 for bonding the two prisms 12A and the roof prism 12B are provided in the side plates 1404 on both sides.
[0009]
6A is a plan view of the light-shielding diaphragm, FIG. 6B is a sectional view taken along the line BB in FIG. 6A, FIG. 6C is a sectional view taken along the line CC in FIG. .
As shown in FIG. 6, the light-shielding diaphragm 16 includes a main body plate portion 1602, a flange 1604, a claw portion 1606, and the like.
The main body plate portion 1602 has a width extending between the side plates 1404 on both sides of the holder main body 14 and is formed in a substantially rectangular shape extending with a dimension larger than this width.
As shown in FIG. 9, the width of the main body plate portion 1602, that is, the dimension between the side surfaces 1602 A is set such that when the light-shielding diaphragm 16 is inserted between the side plates 1404 on both sides, It is formed with high dimensional accuracy so as to be engaged with the inner surface 1404A of 1404 without a gap. In the present embodiment, the side surface 1602A corresponds to the first engaging portion in the claims.
[0010]
On both sides in the width direction of the main body plate portion 1602, reinforcing ribs 1608 are formed to bulge over substantially the entire length in the longitudinal direction of the main body plate portion 1602, and an opening 1610 is provided near one end of the main body plate portion 1602 in the longitudinal direction. It is formed through. The claw portion 1606 is formed to protrude from one end of the main body plate portion 1602 at an interval in the width direction of the main body plate portion, and the claw portion 1606 is formed to be engageable with the concave portion 1408 of the holder main body 14. Yes.
The flange 1604 protrudes from both sides in the width direction near the other end in the longitudinal direction of the main body plate portion 1602. In the present embodiment, the shaft 1612 protrudes from both side surfaces 1602A near the other end in the longitudinal direction of the main body plate portion 1602, and the flange 1604 is formed in a disc shape at the tip of the shaft 1612.
The shaft 1612 is formed with a diameter that can be inserted into the long groove 1418 of the holder body 14, and the dimension between the inner surfaces 1604 A where the flanges 1604 on both sides face each other is shown in FIG. 9 when the shaft 1612 is inserted into the long groove 1418. In this way, the inner surfaces 1604A of the flanges 1604 on both sides are formed with high dimensional accuracy so that they are engaged with the outer surfaces 1420A of the thin portions 1420 of the side plates 1404 on both sides without any gaps. In the present embodiment, the inner surface 1604A corresponds to the second engaging portion in the claims.
[0011]
7A is a plan view of the lid member, FIG. 7B is a sectional view taken along the line BB of FIG. 7A, FIG. 8C is a bottom view thereof, FIG. 8A is a front view of the lid member, and FIG. BB sectional drawing of) is shown.
The lid member 18 is disposed between the tips of the side plates 1404 of the holder body 14. More specifically, as shown in FIGS. 7 and 8, the lid member 18 includes a rectangular upper surface 1802 that covers between the upper sides 1410 of the side plates 1404 and an inclined surface 1804 that blocks between the inclined sides 1412 of the side plates 1404. And an intermediate surface 1806 that closes between the intermediate sides 1414 of both side plates 1404, a lower surface 1808 that closes between the lower sides 1416 of both side plates 1404, and the like. In this embodiment, these upper surface 1802, inclined surface 1804, intermediate surface 1806, The lower plate 1808 constitutes the closing plate portion of the claims.
A circular opening 1810 is formed through substantially the center of the upper surface 1802. Further, side plates 1812 are respectively suspended from the inner surfaces of both sides of the upper surface 1802 having a long side of the rectangle.
[0012]
A thin portion 1814 having a lower height than the inner surface of the side plate 1812 is provided at a location along the lower edge of the side plate 1812 on the inner surface where the both side plates 1812 face each other.
The dimension between the inner surfaces 1814A where the thin portions 1814 face each other is such that when the upper surface 1802 of the lid member 18 is covered between the upper sides 1410 of the both side plates 1404 of the holder body 14, as shown in FIG. The inner surface 1814A is engaged with the outer surface 1420A of the thin wall portion 1420 of the side plates 1404 on both sides with no gap, and is formed with high dimensional accuracy. In the present embodiment, the inner surface 1814A corresponds to a third engagement portion in the claims.
Further, when the upper surface 1802 of the lid member 18 is placed between the upper sides 1410 of the both side plates 1404 of the holder main body 14, the inner surfaces 1814A of the thin portions 1814 on both sides are inserted and engaged with the long grooves 1418 of the side plates 1404, respectively. A convex portion 1816 is formed.
[0013]
The outer surface of the thin portion 1814 is engaged with the inner surface 1814A of the thin portion 1814 and the outer surface 1420A of the thin portion 1420 so that the upper surface 1802 of the lid member 18 is covered between the upper sides 1410 of the side plates 1404 of the holder body 14. The side surfaces on both sides of the lid member 18 including and the outer surface of the side plate 1404 of the holder body 14 are formed so as to be located on the same plane (see FIG. 9).
In addition, the upper surface 1802 of the lid member 18 covers between the upper sides 1410 of the side plates 1404, the inclined surface 1804 blocks between the inclined sides 1412 of the both side plates 1404, and the intermediate surface 1806 blocks between the intermediate sides 1414 of the side plates 1404. A claw piece 1818 is provided that maintains a state where the lower side 1416 of both side plates 1404 is closed by 1808.
[0014]
As shown in FIG. 7C, the claw pieces 1818 are provided on both sides of the lower surface 1808 via slits 1820, respectively, and as shown in FIGS. A convex portion 1818 A that engages with the engaging concave portion 1417 of the side plates 1404 in a state where the space between the side plates 1404 is closed by the member 18 is provided.
Further, at both sides of the lower surface 1808 located inside the claw pieces 1818 on both sides, the inner surface of the lower side 1416 of the side plates 1404 on both sides is shown in FIG. An outer surface 1822 that engages with 1404A without a gap is formed. In the present embodiment, the outer surface 1822 corresponds to a fourth engagement portion in the claims.
One of the two lower surfaces 1808 is provided with a leg portion 1824 extending over the ridge line of the prism 12 A, and the leg portion 1824 is one end surface plate 1406 of the two end surface plates 1406 of the holder body 14. Is inserted into the notch 1424 (see FIGS. 4B and 5A).
[0015]
Next, the case where the prism holder 10 is assembled will be described.
First, the prism 12A is accommodated in the space between the side plates 1404 on the substrate 1402 of the holder main body 14, and then the shaft 1612 is inserted into the long groove 1418 and the claw portion 1606 is engaged with the concave portion 1408 so that the light-shielding diaphragm 16 is formed. The holder body 14 is inserted into the space between the side plates 1404 on the substrate 1402. Next, the roof prism 12B is accommodated on the light-shielding diaphragm 16 between the side plates 1404. The prisms 12A and 12B are attached to the side plates 1404 by the adhesive that flows out along the edges of the openings 1422 and 1424 of the side plates 1404. Glued and fixed.
Then, after the prism 12A and the roof prism 12B are fixed to the both side plates 1404 of the holder main body 14, the lid member 18 is put between the side plates 1404 to form the prism holder 10, and the prism 12A and the roof prism 12B are thus incorporated. Two prism holders 10 are provided.
Each prism holder 10 is incorporated in the left and right lens barrels of the binoculars. The prism holder 10 is moved in the optical axis direction together with the eyepiece lens, and the focus adjustment is performed by changing the distance from the objective lens. Yes.
As indicated by arrows A, B, and C in FIG. 3, the light beam converged by the objective lens passes through the opening 1810 of the lid member 18, the prism 12 A, the opening 1610 of the light blocking diaphragm 16, the roof prism 12 B, and the opening 1407 of the holder body 14. Passing in order, the top, bottom, left and right are inverted by the prisms 12A and 12B and guided to the eyepiece. At that time, stray light is blocked by the openings 1810, 1610, and 1407, and the image is sharpened.
[0016]
In this embodiment, when the shaft 1612 is inserted into the long groove 1418, the claw portion 1606 is engaged with the recess 1408, and the light-shielding diaphragm 16 is inserted into the space between the side plates 1404 on the substrate 1402 of the holder body 14, The side surfaces 1602A on both sides of the light-shielding diaphragm 16 are engaged with the inner surfaces 1404A of the side plates 1404 on both sides of the holder main body 14 without any gaps, thereby preventing the side plates 1404 on both sides of the holder main body 14 from falling to the inside. 1404 will be reinforced with respect to the inside direction (direction approaching each other).
Further, the inner surfaces 1604A of the flanges 1604 on both sides of the light-shielding diaphragm 16 are engaged with the outer surfaces 1420A of the thin portions 1420 of the side plates 1404 on both sides of the holder main body 14 without gaps, thereby moving the outer side plates 1404 on both sides of the holder main body 14 outward. Is prevented, and the side plates 1404 on both sides are reinforced in the outer direction (the direction away from each other).
[0017]
The light-shielding diaphragm 16 is disposed at an angle that intersects the substrate 1402 of the holder main body 14 instead of in parallel, and at an angle that intersects the inner surfaces 1404A of the side plates 1404 on both sides (90 degrees in this embodiment). ), The rigidity of the holder main body 14 is increased, and the side plates 1404 that stand up from both sides of the substrate 1402 are prevented from falling in a direction approaching each other or tilting in the same direction. This is extremely advantageous.
Furthermore, in the present embodiment, the light-shielding diaphragm 16 is extended over almost the entire length in the height direction of the side plate 1404, which is more advantageous in increasing the rigidity of the holder body 14.
Further, since the light-shielding stop 16 is disposed at an angle that intersects the substrate 1402 of the holder main body 14 rather than in parallel, the prism 12A is incorporated in the holder main body 14, and then the light-shielding stop 16 is inserted, and finally the roof prism 12B. In addition to being excellent in the workability of arranging optical parts, the holder body 14 can be reinforced without securing an extra space, and there is no problem of increasing the size of the holder body 14.
Therefore, by using the light-shielding diaphragm 16 that is a constituent member of the prism holder 18, the side plate 1404 of the holder main body 14 can be reinforced without increasing the number of components and without complicating the assembly.
[0018]
In the present embodiment, the prism holder 18 is configured using the lid member 18, and when the lid member 18 is put on the holder main body 14, the inner surfaces 1814 A of the thin portions 1814 on both sides of the lid member 18 become the holder main body. 14 is engaged with the outer surface 1420A of the thin portion 1420 of the thin-walled portion 1420 of the side plates 1404 on both sides, thereby preventing the side plates 1404 on both sides of the holder body 14 from falling outside, and the side plates 1404 on both sides are in the outward direction (direction away from each other). ) Will be reinforced.
Further, the outer surface 1822 of the lower surface 1808 positioned inside the claw pieces 1818 on both sides of the lid member 18 is engaged with the inner surface 1404A of the lower side 1416 of the side plate 1404 on both sides of the holder main body 14 without any gap, whereby the holder main body 14 The side plates 1404 on both sides are prevented from falling to the inside, and the side plates 1404 on both sides are reinforced in the inner direction (direction approaching each other).
Therefore, by using the lid member 18 that is a constituent member of the prism holder 18, the side plate 1404 of the holder main body 14 can be reinforced without increasing the number of components and without complicating the assembly.
[0019]
In the present embodiment, the case where the prism holder 10 is configured by three members, that is, the holder main body 14, the light-shielding diaphragm 16, and the lid member 18 has been described. However, the prism holder 10 without the lid member 18 is described. The present invention also applies.
In this embodiment, the case where the optical component is a prism has been described. However, the optical component may be other than a prism such as a lens.
[0020]
【The invention's effect】
As apparent from the above description, in the present invention, the side plates on both sides of the holder body are reinforced by using the light-shielding diaphragm that is a constituent member of the holder for optical components.
Therefore, according to the present invention, it is possible to reinforce the side plates on both sides of the holder body without increasing the number of parts and without complicating the assembly.
Further, according to the present invention, when the optical component holder includes a lid member, the side plates on both sides of the holder main body are reinforced by using the lid member.
Therefore, according to the present invention, it is possible to more firmly reinforce the side plates on both sides of the holder body without increasing the number of components and without complicating the assembly.
[Brief description of the drawings]
FIG. 1 is a perspective view of a prism holder.
FIG. 2 is an exploded perspective view of a prism holder.
FIG. 3 is a sectional front view of the prism holder.
4A is a front view of a holder body, FIG. 4B is a plan view thereof, and FIG. 4C is a CC cross-sectional view of FIG. 4B.
5A is a cross-sectional view taken along the arrow X in FIG. 4B, FIG. 5B is a bottom view thereof, and FIG. 5C is a YY cross-sectional view of FIG.
6A is a plan view of a light-shielding diaphragm, FIG. 6B is a sectional view taken along the line BB in FIG. 6A, FIG. 6C is a sectional view taken along the line CC in FIG. It is.
7A is a plan view of a lid member, FIG. 7B is a sectional view taken along line BB in FIG. 7A, and FIG. 7C is a bottom view thereof;
8A is a front view of a lid member, and FIG. 8B is a BB cross-sectional view of FIG. 8A.
FIG. 9 shows a state where the side surfaces on both sides of the light-shielding diaphragm are engaged with the inner surfaces of the side surfaces on both sides of the holder without gaps, and the inner surfaces of the flanges on both sides are engaged with the outer surfaces of the thin portions of the side plates on both sides of the holder without gaps. It is a sectional side view shown.
FIG. 10 is a cross-sectional side view showing a state in which the inner surfaces of the thin portions on both sides of the lid member are engaged with the outer surfaces of the thin portions on both sides of the holder without a gap.
FIG. 11 is a cross-sectional plan view showing a state in which the outer surfaces on both sides of the lower surface of the lid member are engaged with the inner surfaces of the lower sides of the side plates on both sides of the holder without a gap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Prism holder 12 Erect prism 12A Prism 12B Dach prism 14 Holder main body 1402 Substrate 1404 Side plate 16 Light-shielding diaphragm 1602 Main body plate 1604 Flange 18 Lid member 1802 Upper surface 1812 Side plate

Claims

A holder for an optical component comprising a substrate and a holder main body having side plates standing from both sides of the substrate, wherein an optical component is disposed in a space between the side plates on both sides,
A light-shielding diaphragm is arranged at an angle that intersects the surface of the substrate and intersects with the inner surfaces of the side plates on both sides,
The light-shielding diaphragm includes a main body plate portion having a width extending between inner surfaces facing each other on both side plates, and flanges projecting from both sides in the width direction of the main body plate portion. Engaging portions that prevent the side plate from falling over the substrate are provided on both sides and the flanges on both sides.
A holder for optical components.

The engaging portion includes a first engaging portion provided on both sides in the width direction of the main body plate portion, and a second engaging portion provided on the flanges on the both sides, the first engaging portion being The second engaging portions are configured to prevent the side plates on both sides from falling in a direction away from each other. The optical component holder according to claim 1.

3. The optical component holder according to claim 2, wherein the second engaging portion is formed to engage with the outer surfaces of the side plates on both sides at a tip portion of the side plate away from the substrate.

At the front end portions of the side plates on both sides, an open long groove is provided on the front side of the side plate, and shafts are provided on both sides in the width direction of the main body plate portion of the light-shielding diaphragm so as to be inserted into and removed from the long groove, Is formed in a disc shape having a cross section larger than the cross section of the shaft at the tip of the shaft, and the second engaging portion engages with an outer surface portion of the side plate around the long groove in a state where the shaft is inserted into the long groove. The optical component holder according to claim 2, wherein the optical component holder is configured as described above.

The outer periphery of the flange is located away from the tip of the side plate in a state where the shaft is inserted into the long groove and the second engaging portion is engaged with the side plate outer surface portion around the long groove. The holder for optical components according to claim 4.

A plurality of optical components are disposed in a space between the side plates on both sides on the substrate, the light-shielding diaphragm is disposed between these optical components, and light passing through the optical components is transmitted to the substrate and the light-shielding diaphragm. The optical component holder according to any one of claims 1 to 5, further comprising an opening that allows passage of light and blocks stray light.

The optical component holder includes a lid member that is detachably covered between tips of side plates on both sides of the holder body, and the lid member has a width that extends between the tips of the side plates on both sides. And a third engaging portion that engages with the distal end side portion of the side plate with respect to the second engaging portion to prevent the side plates from collapsing on both sides in the width direction of the closing plate portion. The optical component holder according to claim 4, wherein the holder is an optical component.

On both sides in the extending direction of the closing plate portion, there are provided fourth engagement portions that engage with the side edges of the side plates on both sides to prevent the side plates on both sides from falling down. 8. The optical component holder according to claim 7, wherein in the four engaging portions, the direction in which the side plate is blocked is reversed.

A thin portion with a lower outer surface is formed on the outer surface portion of the end of the side plate and the outer surface portion of the side plate around the long groove, and the second engaging portion and the third engaging portion are engaged with the outer surface of the thin portion. 9. The prism holder structure according to claim 7, wherein the outer surface of the flange, the outer surface of the lid member, and the outer surface of the side plate are substantially flush with each other.

The optical path composed of the plurality of optical components is configured such that light passes through the blocking plate portion, passes through one optical component, passes through the light-shielding diaphragm, and then passes through the other optical component to the substrate. 10. The optical component holder according to claim 7, 8 or 9, wherein the closing plate portion, the light-shielding stop, and the substrate are each formed with an opening that allows the light to pass therethrough and blocks stray light.

11. The optical component holder according to claim 1, wherein the optical component is a plurality of prisms, and an erecting prism is constituted by the plurality of prisms.