JPH0422332Y2 - - Google Patents
Info
- Publication number
- JPH0422332Y2 JPH0422332Y2 JP1986132660U JP13266086U JPH0422332Y2 JP H0422332 Y2 JPH0422332 Y2 JP H0422332Y2 JP 1986132660 U JP1986132660 U JP 1986132660U JP 13266086 U JP13266086 U JP 13266086U JP H0422332 Y2 JPH0422332 Y2 JP H0422332Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- flexible printed
- printed circuit
- circuit board
- lens barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Camera Bodies And Camera Details Or Accessories (AREA)
- Structure Of Printed Boards (AREA)
Description
【考案の詳細な説明】
「技術分野」
本考案は、レンズシヤツタ式カメラに関し、特
にシヤツタブロツクに対する動作信号をフレキシ
ブルプリント基板を介してカメラボデイ側から与
えるタイプのカメラにおける、該フレキシブルプ
リント基板の反射防止装置に関する。[Detailed Description of the Invention] "Technical Field" The present invention relates to a lens shutter type camera, and in particular to a reflection prevention device for a flexible printed circuit board in a type of camera in which an operating signal to the shutter block is supplied from the camera body side via a flexible printed circuit board. Regarding.
「従来技術およびその問題点」
本出願人は先に、ズーム機能を備えたレンズシ
ヤツタ式カメラを提案している（特願昭61−
108278号）。このレンズシヤツタ式カメラでは、
少なくとも前後二群のレンズを独立して光軸方向
に作動させてズーミングを行なうようにしてお
り、プログラム式のシヤツタブロツクは、前群レ
ンズ支持部材に搭載され、前群レンズと一体に光
軸方向に移動する。このようにシヤツタブロツク
が光軸方向移動部材に搭載されているレンズシヤ
ツタ式カメラでは、カメラボデイ側の測距装置、
露出制御装置等の出力に応じて、このシヤツタブ
ロツクに動作信号を与えるため、フレキシブルプ
リント基板（Flexible Print Circuit，以下FPC
基板という）を用いることが不可欠である。とこ
ろがFPC基板は、柔軟な樹脂材料中に配線パタ
ーンを埋込むものであつて、樹脂材料は一般に光
沢を有する反射性のものからなつているために、
レンズ系から入つた光線がこのFPC基板で反射
するおそれがあり、反射すると、有害な内面反射
となつてしまう。"Prior art and its problems" The applicant had previously proposed a lens shutter type camera with a zoom function (Patent application No. 1983-
No. 108278). With this lens shutter type camera,
At least the two front and rear lens groups are operated independently in the optical axis direction for zooming, and the programmable shutter block is mounted on the front group lens support member and is integrated with the front group lens in the optical axis direction. Moving. In a lens shutter type camera in which the shutter block is mounted on a member that moves in the optical axis direction, the distance measuring device on the camera body side,
In order to provide operating signals to this shutter block according to the output of the exposure control device, etc., a flexible printed circuit (hereinafter referred to as FPC) is used.
It is essential to use a substrate (referred to as a substrate). However, FPC boards have wiring patterns embedded in a flexible resin material, and the resin material is generally made of a reflective material with a glossy finish.
There is a risk that the light rays entering from the lens system will be reflected by this FPC board, and if reflected, it will become a harmful internal reflection.
「考案の目的」
本考案は、このようにシヤツタブロツクとカメ
ラボデイ側とをFPC基板で接続する場合におい
て、FPC基板による内面反射を防止することを
目的とする。``Purpose of the invention'' The object of the invention is to prevent internal reflections caused by the FPC board when connecting the shutter block and the camera body side using the FPC board.
「考案の概要」
本考案は、レンズ鏡筒の光軸方向移動部材に搭
載したシヤツタブロツクに対し、フレキシブルプ
リント基板を介してカメラボデイ側から動作信号
を与えるレンズシヤツタ式カメラにおいて、フレ
キシブルプリント基板のレンズ光軸側の表面に、
該フレキシブルプリント基板とは別部材からなる
反射防止シートを重ね、さらにこの重ねたフレキ
シブルプリント基板および反射防止シートの中間
部分を、２か所で折り返してＳ字状に屈曲させた
ことを特徴としている。"Summary of the invention" This invention is a lens shutter type camera in which an operation signal is sent from the camera body side via a flexible printed circuit board to a shutter block mounted on a member that moves in the optical axis direction of a lens barrel. On the shaft side surface,
It is characterized in that an anti-reflection sheet made of a separate member from the flexible printed circuit board is stacked, and the middle portion of the stacked flexible printed circuit board and anti-reflection sheet is folded back at two points to form an S-shape. .
「考案の実施例」
以下図示実施例について本考案を説明する。本
レンズシヤツタ式カメラは、第１図にその全体の
概略を示すように、ズームレンズの鏡筒ブロツク
１、フアインダおよびストロボロツク２、測距装
置（AF装置）の発光部３と受光部４、ズーミン
グ用のズームモータ５とを備えている。これらの
要素は、カメラボデイの固定部となる台板６（第
９図ないし第１１図参照）上に固定されている。``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. As shown schematically in Figure 1, this lens shutter type camera consists of a lens barrel block 1 of a zoom lens, a viewfinder and a strobe lock 2, a light emitting section 3 and a light receiving section 4 of a distance measuring device (AF device), and a zoom lens. It is equipped with a zoom motor 5 for use. These elements are fixed on a base plate 6 (see FIGS. 9 to 11), which serves as a fixed part of the camera body.
すなわち、台板６は、光軸と直角をなす鏡筒支
持板部６ａと、この鏡筒支持板部６ａの上端を直
角に曲折した水平支持板部６ｂと、この水平支持
板部６ｂに対して直角をなすモータ支持板部６ｃ
とを有していて、鏡筒支持板部６ａに鏡筒ブロツ
ク１が支持されている。またモータ支持板部６ｃ
には、鏡筒ブロツク１の上部中央に位置するズー
ムモータ５が固定され、このズームモータ５の両
側に、水平支持板部６ｂに固定された発光部３と
受光部４が位置している。フアインダおよびスト
ロボブロツク２は、この水平支持板部６ｂの正面
右方に固定される。６ｅは、スペーサ６ｆを介し
てモータ支持板部６ｃに固定したギヤ列支持プレ
ートである。 That is, the base plate 6 includes a lens barrel support plate portion 6a that is perpendicular to the optical axis, a horizontal support plate portion 6b that is formed by bending the upper end of the lens barrel support plate portion 6a at a right angle, and a horizontal support plate portion 6b that is perpendicular to the optical axis. Motor support plate portion 6c forming a right angle with
The lens barrel block 1 is supported by the lens barrel support plate portion 6a. Also, the motor support plate portion 6c
A zoom motor 5 located at the upper center of the lens barrel block 1 is fixed to the lens barrel block 1, and a light emitting section 3 and a light receiving section 4 fixed to a horizontal support plate section 6b are located on both sides of the zoom motor 5. The finder and strobe block 2 are fixed to the front right side of this horizontal support plate portion 6b. 6e is a gear train support plate fixed to the motor support plate portion 6c via a spacer 6f.
鏡筒ブロツク１は、ズームモータ５によつて駆
動されるもので、第１図、第５図および第６図に
示す構成を有する。この実施例の鏡筒ブロツク１
は、ズーミングおよびマクロ撮影が可能なもので
ある。台板６の鏡筒支持板部６ａには、固定ねじ
１０を介して後固定板１１が固定されている。こ
の後固定板１１には光軸と平行でこれの周囲に位
置する４本のガイドロツド１２が固定されてい
て、このガイドロツド１２の先端に前固定板１３
が固定されている。以上が鏡筒ブロツク１の主た
る固定要素である。 The lens barrel block 1 is driven by a zoom motor 5 and has the configuration shown in FIGS. 1, 5, and 6. Lens barrel block 1 of this example
is capable of zooming and macro photography. A rear fixing plate 11 is fixed to the lens barrel support plate portion 6a of the base plate 6 via fixing screws 10. Four guide rods 12 are fixed to the rear fixing plate 11 in parallel with the optical axis and located around it, and a front fixing plate 13 is attached to the tip of the guide rods 12.
is fixed. The above are the main fixing elements of the lens barrel block 1.
後固定板１１と前固定板１３の間には、カムリ
ング１４が回転自在に支持されており、このカム
リング１４の外周に、ピニオン７と直接またはギ
ヤ列を介して噛み合う環状のギヤ部材１５が固定
ねじ１５ａで固定されている。カムリング１４に
は、前群用、後群用の貫通したズーミングカム溝
２０，２１が切られている。 A cam ring 14 is rotatably supported between the rear fixed plate 11 and the front fixed plate 13, and an annular gear member 15 that meshes with the pinion 7 directly or through a gear train is fixed to the outer periphery of the cam ring 14. It is fixed with screws 15a. The cam ring 14 is cut with penetrating zooming cam grooves 20 and 21 for the front group and the rear group.
第８図はズーミングカム溝２０，２１の展開図
で、後群用のズーミングカム溝２１は広角端固定
区間２１ａ、変倍区間２１ｂ、望遠端固定区間２
１ｃを有している。これに対し前群用のズーミン
グカム溝２０は、バリヤブロツク３０の開閉区間
２０ａ、レンズ収納区間２０ｂ、広角端固定区間
２０ｃ、変倍区間２０ｄ、望遠端固定区間２０
ｅ、マクロ繰出区間２０ｆ、およびマクロ端固定
区間２０ｇを有している。これら各区間の回動角
度は、ズーミングカム溝２０のバリヤ開閉区間２
０ａ、レンズ収納区間２０ｂ、および広角端固定
区間２０ｃの合計角度θ1が、ズーミングカム溝２
１の広角端固定区間２１ａの角度θ1と同一であ
り、変倍区間２０ｄと変倍区間２１ｂの角度θ2が
同一であり、望遠端固定区間２０ｅ、マクロ繰出
区間２０ｆ、およびマクロ固定区間２０ｇの合計
角度θ3が望遠端固定区間２１ｃの角度θ3と同一で
ある。バリヤブロツク３０は、カムリング１４の
バリヤ開閉区間２０ａの回動によつて、一対のバ
リヤ３１を開閉するものである。 FIG. 8 is a developed view of the zooming cam grooves 20 and 21. The zooming cam groove 21 for the rear group includes a wide-angle end fixed section 21a, a variable power section 21b, and a telephoto end fixed section 2.
1c. On the other hand, the zooming cam groove 20 for the front group includes an opening/closing section 20a of the barrier block 30, a lens storage section 20b, a wide-angle end fixed section 20c, a variable power section 20d, and a telephoto end fixed section 20.
e, a macro feeding section 20f, and a macro end fixed section 20g. The rotation angle of each section is the barrier opening/closing section 2 of the zooming cam groove 20.
0a, the lens housing section 20b, and the wide-angle end fixing section 20c.
The angle θ1 of the wide-angle end fixed section 21a of No. 1 is the same, the angle θ2 of the variable power section 20d and the variable power section 21b is the same, and the sum of the telephoto end fixed section 20e, the macro feed section 20f, and the macro fixed section 20g. The angle θ3 is the same as the angle θ3 of the telephoto end fixed section 21c. The barrier block 30 opens and closes a pair of barriers 31 by rotating the barrier opening/closing section 20a of the cam ring 14.
このズーミングカム溝２０および２１には、ガ
イドロツド１２に移動自在に嵌めた前群用進退レ
ンズ筒１６のローラ１７および後群用進退レンズ
筒１８のローラ１９が嵌まる。進退レンズ筒１６
には、固定ねじ２２ａを介して該進退レンズ筒１
６の一部を構成する飾枠２２が固定され、さらに
シヤツタブロツク２３が固定されている。前群レ
ンズＬ１を保持した前群レンズ枠２４は、このシ
ヤツタブロツク２３とヘリコイド２５によつて螺
合しており、またシヤツタブロツク２３のレンズ
繰出レバー２３ａと係合する腕２４ａを有してい
る。したがつてレンズ繰出レバー２３ａが円周方
向に回動し、これに伴ない前群レンズ枠２４が回
動すると、前群レンズ枠２４はヘリコイド２５に
従つて光軸方向に移動する。後群レンズＬ２は、
後群用進退レンズ筒１８に直接固定されている。 A roller 17 of a front lens barrel 16 and a roller 19 of a rear lens barrel 18, which are movably fitted to the guide rod 12, are fitted into the zooming cam grooves 20 and 21. Retractable lens barrel 16
The reciprocating lens barrel 1 is inserted through the fixing screw 22a.
A decorative frame 22 constituting a part of the shutter 6 is fixed, and a shutter block 23 is also fixed. The front group lens frame 24 holding the front group lens L1 is threadedly engaged with the shutter block 23 by a helicoid 25, and has an arm 24a that engages with a lens extension lever 23a of the shutter block 23. Therefore, when the lens advancing lever 23a rotates in the circumferential direction and the front group lens frame 24 rotates accordingly, the front group lens frame 24 moves in the optical axis direction following the helicoid 25. The rear group lens L2 is
It is directly fixed to the rear group reciprocating lens barrel 18.
シヤツタブロツク２３自体は周知のものであ
る。内蔵したパルスモータによつて、上記発光部
３と受光部４を有する測距装置からの測距信号に
応じた角度だけレンズ繰出レバー２３ａを回動さ
せ、さらに露出制御装置からの信号に基づき、閉
じられているシヤツタ（セクタ）２３ｂを所定時
間開いた後再び閉じてから、レンズ繰出レバー２
３ａを元の位置に復帰させる。 Shutter block 23 itself is well known. A built-in pulse motor rotates the lens extension lever 23a by an angle corresponding to a distance measurement signal from a distance measurement device having the light emitting section 3 and light receiving section 4, and further based on a signal from the exposure control device, After opening the closed shutter (sector) 23b for a predetermined period of time and then closing it again,
Return 3a to its original position.
FPC基板６０は、このシヤツタブロツク２３
に対し、動作信号を与えるもので、本考案は、こ
のFPC基板６０による内面反射の防止を要旨と
する。このFPC基板６０は、周知のように柔軟
な合成樹脂基板の内部に配線パターンを形成して
なるもので、第１図に示すように、その先端部に
シヤツタブロツク２３との接続パターン６１、後
端部にカメラボデイ側CPU（図示せず）との接続
パターン６２を有している。 The FPC board 60 is attached to this shutter block 23.
The main purpose of the present invention is to prevent internal reflections caused by the FPC board 60. As is well known, this FPC board 60 is formed by forming a wiring pattern inside a flexible synthetic resin board, and as shown in FIG. It has a connection pattern 62 for connecting to the camera body side CPU (not shown).
まずこのFPC基板６０のガイド機構を説明す
ると、基部（後部）をカメラボデイ側に固定する
FPCガイド板６３は、その先端部がカムリング
１４と飾枠２２の間の環状空間６４（第３図）に
おいて、レンズ鏡筒の前方に伸びている。６６
は、FPCガイド板６３を固定するための固定リ
ツプ、６７は同挟着片で、例えばダイキヤスト性
のボデイ枠体の前部、または鏡筒枠体の後部に固
定される。 First, to explain the guide mechanism of this FPC board 60, the base (rear part) is fixed to the camera body side.
The tip of the FPC guide plate 63 extends forward of the lens barrel in an annular space 64 (FIG. 3) between the cam ring 14 and the decorative frame 22. 66
1 is a fixing lip for fixing the FPC guide plate 63, and 67 is a clamping piece that is fixed to, for example, the front part of a die-cast body frame or the rear part of a lens barrel frame.
FPCガイド板６３の先端部には、折返しガイ
ド６５が設けられている。この折返しガイド６５
は、前後一対のガイドローラ６８，６９からなつ
ている。このガイドローラ６８，６９は、FPC
基板６０の固定折返し部６０ａ、すなわちカメラ
ボデイ側から前方に延びたFPC基板６０を一旦
ボデイ側に折返す折返し部６０ａにおいて、
FPC基板６０の曲率が一定以下とならないよう
に固定するものである。ガイドローラ６８の曲率
に沿わせたFPC基板６０は、ガイドローラ６９
とFPCガイド板６３との間の隙間を通つて後方
に伸び、その後可動折返し部６０ｂで前方に自由
状態で曲折されている。ガイドローラ６８，６９
とFPC基板６０との相対位置関係は、シヤツタ
ブロツク２３が前後に動いても変化しない。シヤ
ツタブロツク２３が前後に動くと、可動折返し部
６０ｂの位置が前後に変化する。なおFPC基板
６０のFPCガイド板６３の後部からの突出部は、
第１図、第２図においては、後方に延長させて描
いているが、実際は、カメラボデイの前側に導く
べく、FPC基板６０の曲折ガイド７０に沿つて
前方に曲げられる。 A folding guide 65 is provided at the tip of the FPC guide plate 63. This folding guide 65
consists of a pair of front and rear guide rollers 68, 69. These guide rollers 68 and 69 are
At the fixed folding part 60a of the board 60, that is, the folding part 60a where the FPC board 60 extending forward from the camera body side is once folded back to the body side.
This is to fix the FPC board 60 so that its curvature does not fall below a certain level. The FPC board 60 is aligned along the curvature of the guide roller 68, and the guide roller 69
It extends rearward through the gap between the FPC guide plate 63 and the FPC guide plate 63, and is then freely bent forward at the movable folding portion 60b. Guide rollers 68, 69
The relative positional relationship between the FPC board 60 and the FPC board 60 does not change even if the shutter block 23 moves back and forth. When the shutter block 23 moves back and forth, the position of the movable folded portion 60b changes back and forth. Note that the protrusion from the rear of the FPC guide plate 63 of the FPC board 60 is
In FIGS. 1 and 2, it is shown extending rearward, but in reality, it is bent forward along the bending guide 70 of the FPC board 60 in order to lead it to the front side of the camera body.
例えば以上のようにガイドされるFPC基板６
０の内面は、前群用進退レンズ筒１６（飾枠２
２）と後群用進退レンズ筒１８との間の隙間に臨
んでおり、したがつてレンズ系内に入る光がこの
FPC基板６０で反射すると、有害な内面反射を
生ずるおそれがある。本考案は、この内面反射を
防止するために、FPC基板６０の内面、つまり
レンズ光軸側の表面に、第５図に示すように、
FPC基板６０とは別部材からなる反射防止シー
ト７１を重ね、さらに重ねたまま、前後の折り返
し部６０ａ，６０ｂで折り返して屈曲させたこと
を特徴としている。この反射防止シート７１は、
例えば艶消しの黒紙等から構成することができ、
これをFPC基板６０に重ねることで、確実に内
面反射を防止することができる。この反射防止シ
ート７１は、FPC基板６０に接着するよりも、
単に重ね合わせる方が伸縮が円滑である。 For example, the FPC board 6 guided as shown above
0 is the front lens barrel 16 (decorative frame 2).
2) and the rear group advancing/retracting lens barrel 18, so that the light entering the lens system is
If reflected by the FPC board 60, harmful internal reflection may occur. In the present invention, in order to prevent this internal reflection, the inner surface of the FPC board 60, that is, the surface on the lens optical axis side, is provided with a
It is characterized in that an anti-reflection sheet 71 made of a separate member from the FPC board 60 is stacked, and then folded back and bent at the front and rear folding parts 60a and 60b while stacked. This anti-reflection sheet 71 is
For example, it can be constructed from matte black paper, etc.
By stacking this on the FPC board 60, internal reflection can be reliably prevented. Rather than bonding the anti-reflection sheet 71 to the FPC board 60,
Simply overlapping them allows for smoother expansion and contraction.
上記構成の本カメラは、ズームモータ５を駆動
すると、カムリング１４が回転し、そのカム溝２
０，２１に従つて、進退レンズ筒１６および１８
が光軸方向に移動してズーミングおよびマクロ撮
影への移行が行なわれる。この進退レンズ筒１６
の移動に伴ない、これに搭載されているシヤツタ
ブロツク２３も光軸方向に移動する。したがつて
シヤツタブロツク２３にその接続パターン６１を
接続固定したFPC基板６０は、その可動折返し
部６０ｂを前後に移動させながら、シヤツタブロ
ツク２３の位置の変化を吸収することとなる。 In this camera with the above configuration, when the zoom motor 5 is driven, the cam ring 14 rotates and its cam groove 2
0, 21, reciprocating lens barrels 16 and 18
moves in the optical axis direction to perform zooming and transition to macro photography. This reciprocating lens barrel 16
As the shutter block 23 moves, the shutter block 23 mounted thereon also moves in the optical axis direction. Therefore, the FPC board 60 with its connection pattern 61 connected and fixed to the shutter block 23 absorbs changes in the position of the shutter block 23 while moving its movable folded portion 60b back and forth.
そしてFPC基板６０は、そのレンズ光軸側の
内面に反射防止シート７１を重ね、重ねたまま前
後の折り返し部６０ａ，６０ｂでＳ字状に屈曲さ
せているので、このように可動折返し部６０ｂの
位置が変化すると否とに拘わらず、レンズ系内に
入つた撮影光がこのFPC基板６０で反射するこ
とはなく、よつて内面反射によるゴースト、フレ
ア等の悪影響を除くことができる。 The FPC board 60 has an anti-reflection sheet 71 layered on its inner surface on the lens optical axis side, and is bent into an S-shape at the front and rear folding portions 60a and 60b while being stacked, so that the movable folding portion 60b Regardless of whether the position changes or not, the photographing light that has entered the lens system will not be reflected by this FPC board 60, thereby eliminating adverse effects such as ghost and flare due to internal reflection.
なお上記実施例に示したFPC基板６０のガイ
ド機構は一例を示すもので、本考案はガイド機構
の如何は問わない。 Note that the guide mechanism for the FPC board 60 shown in the above embodiment is merely an example, and the present invention is not limited to any guide mechanism.
最後に第１図に示したフアインダブロツク２の
フアインダ装置８とストロボ装置９を簡単に説明
する。このフアインダ装置８とストロボ装置９は
ともに、鏡筒ブロツク１の焦点距離の変化に連動
させて、フアインダ視野を変化させ、かつストロ
ボの照射角（光強度）を変化させるものである。
そのための動力源は、ズームモータ５が用いられ
る。カムリング１４のギヤギヤ部材１５には、上
記ピニオン７とは別のピニオン５０が噛み合つて
いて、このピニオン５０の軸５１は、台板６の後
方に延長され、その後端に減速ギヤ列５２が設け
られている。減速ギヤ列５２の最終ギヤ５２ａ
は、カム板５３のラツク５３ａに噛み合つてい
る。カム板５３は左右方向に摺動可能で、その後
端の下方曲折部５３ｂの先端（下端）にラツク５
３ａが一体に設けられている。減速ギヤ列５２
は、ギヤ部材１５の回転を減速し、カムリング１
４の動きを縮小してカム板５３に与えるものであ
る。カム板５３には、フアインダ装置８用の変倍
カム溝５５と、パララツクス補正カム溝５６、お
よびストロボ装置９用のストロボカム溝５７が設
けられている。 Finally, the finder device 8 and strobe device 9 of the finder block 2 shown in FIG. 1 will be briefly explained. Both the finder device 8 and the strobe device 9 change the viewfinder field of view and change the illumination angle (light intensity) of the strobe in conjunction with changes in the focal length of the lens barrel block 1.
A zoom motor 5 is used as a power source for this purpose. A pinion 50, which is different from the pinion 7, is engaged with the gear member 15 of the cam ring 14, and the shaft 51 of this pinion 50 is extended to the rear of the base plate 6, and a reduction gear train 52 is connected to the rear end thereof. It is provided. Final gear 52a of reduction gear train 52
is engaged with the rack 53a of the cam plate 53. The cam plate 53 is slidable in the left-right direction, and a rack 5 is attached to the tip (lower end) of the downwardly bent portion 53b at the rear end.
3a are integrally provided. Reduction gear train 52
reduces the rotation of the gear member 15 and reduces the rotation of the cam ring 1.
4 is reduced and applied to the cam plate 53. The cam plate 53 is provided with a variable power cam groove 55 for the finder device 8, a parallax correction cam groove 56, and a strobe cam groove 57 for the strobe device 9.
フアインダ装置８のレンズ系は、基本的には、
固定された被写体側レンズ群Ｌ３と接眼レンズ群
Ｌ４、および可動の変倍レンズ群Ｌ５からなり、
さらに、マクロ撮影時用の偏角プリズムＰ１を備
えている。変倍レンズ群Ｌ５は鏡筒ブロツク１の
変倍操作による撮影画面と、フアインダ装置８に
よる視野を一致させるものであり、偏角プリズム
Ｐ１はマクロ撮影時のみ光軸上に進出して特にパ
ララツクスを補正する。すなわち、前述のように
レンズシヤツタ式カメラでは、パララツクスが避
けられず、その量は近距離撮影程大きくなるが、
この実施例のカメラはマクロ撮影が可能であり、
このときパララツクスの量が大きくなることか
ら、マクロ撮影時に限つて、下方が厚く上方が薄
い楔形の偏角プリズムＰ１を光路に入れて、光路
を下方に屈曲させ、撮影部分により近い部分を観
察できるようにしている。 The lens system of the finder device 8 is basically as follows:
It consists of a fixed subject side lens group L3, an eyepiece lens group L4, and a movable variable magnification lens group L5,
Furthermore, it is provided with a deflection prism P1 for macro photography. The variable magnification lens group L5 matches the image taken by the variable magnification operation of the lens barrel block 1 with the field of view provided by the finder device 8, and the deflection prism P1 is advanced onto the optical axis only during macro photography to particularly eliminate parallax. to correct. In other words, as mentioned above, parallax is unavoidable in lens-shutter cameras, and the amount of parallax increases the closer you shoot.
The camera of this example is capable of macro photography,
At this time, since the amount of parallax increases, only during macro photography, a wedge-shaped deflection prism P1 that is thicker at the bottom and thinner at the top is inserted into the optical path to bend the optical path downward, making it possible to observe areas closer to the photographed area. That's what I do.
「考案の効果」
以上のように本考案は、シヤツタブロツクに対
しフレキシブルプリント基板を介して動作信号を
与えるカメラにおいて、該フレキシブルプリント
基板のレンズ光軸側の表面に反射防止シートを重
ねたので、該基板による内面反射を防止すること
ができる。特に、反射防止シートは、フレキシブ
ルプリント基板とは別部材からなつているから、
反射防止特性に優れた材料を自由に選択すること
ができ、確実な反射防止を図ることができる。ま
たフレキシブルプリント基板と反射防止シート
は、重ねたまま、２か所の折り返し部で折り返さ
れてＳ字状に屈曲されているので、シヤツタブロ
ツクが光軸方向に移動するに際しても、その折り
返し部が伸縮するだけで、全く同じ反射防止特性
を得ることができる。``Effects of the Invention'' As described above, the present invention provides a camera that provides operating signals to the shutter block via a flexible printed circuit board, in which an anti-reflection sheet is layered on the surface of the flexible printed circuit board on the lens optical axis side. Internal reflection by the substrate can be prevented. In particular, since the anti-reflection sheet is made of a separate material from the flexible printed circuit board,
Materials with excellent antireflection properties can be freely selected, and reliable antireflection can be achieved. In addition, the flexible printed circuit board and anti-reflection sheet are folded back at two folded parts and bent into an S-shape while stacked on top of each other, so even when the shutter block moves in the optical axis direction, the folded parts expand and contract. By simply doing this, you can obtain exactly the same antireflection properties.
第１図は本考案のレンズシヤツタ式カメラにお
けるフレキシブルプリント基板の反射防止装置の
実施例を示す要部の斜視図、第２図はFPCガイ
ド板とフレキシブルプリント基板の関係を示す斜
視図、第３図はFPCガイド板の位置を示す断面
図、第４図はフレキシブルプリント基板の固定折
返し部と可動折返し部の関係を示す側面図、第５
図はフレキシブルプリント基板に反射防止シート
を重ねた実施例を示す側面図、第６図は鏡筒ブロ
ツク部分の断面図、第７図は同鏡筒ブロツク部分
の分解斜視図、第８図はカムリングの展開図、第
９図はカメラボデイに固定される台板部分の正面
図、第１０図は第９図の−線に沿う断面図、
第１１図は第９図の平面図である。
１……鏡筒ブロツク、２……フアインダおよび
ストロボブロツク、５……ズームモータ、８……
フアインダ装置、１４……カムリング、１６……
前群用進退レンズ筒（光軸方向移動部材）、１８
……後群用進退レンズ筒、２０，２１……ズーミ
ングカム溝、２３……シヤツタブロツク、６０…
…フレキシブルプリント基板、６０ａ……固定折
返し部、６０ｂ……可動折返し部、６１，６２…
…接続パターン、６３……FPCガイド板、６５
……折返しガイド、６８，６９……ガイドロー
ラ、７１……反射防止シート。
Fig. 1 is a perspective view of the main parts showing an embodiment of the anti-reflection device for a flexible printed circuit board in a lens shutter type camera of the present invention, Fig. 2 is a perspective view showing the relationship between the FPC guide plate and the flexible printed board, and Fig. 3 Figure 4 is a cross-sectional view showing the position of the FPC guide plate, Figure 4 is a side view showing the relationship between the fixed folded part and the movable folded part of the flexible printed circuit board, and Figure 5
The figure is a side view showing an embodiment in which an anti-reflection sheet is layered on a flexible printed circuit board, Figure 6 is a sectional view of the lens barrel block, Figure 7 is an exploded perspective view of the lens barrel block, and Figure 8 is a cam ring. Figure 9 is a front view of the base plate fixed to the camera body, Figure 10 is a sectional view taken along the - line in Figure 9,
FIG. 11 is a plan view of FIG. 9. 1...Lens barrel block, 2...Finder and strobe block, 5...Zoom motor, 8...
Winder device, 14...Cam ring, 16...
Front group reciprocating lens barrel (optical axis direction moving member), 18
...Advancing/retracting lens barrel for rear group, 20, 21...Zooming cam groove, 23...Shutter block, 60...
...Flexible printed circuit board, 60a... Fixed folding part, 60b... Movable folding part, 61, 62...
...Connection pattern, 63...FPC guide plate, 65
...Folding guide, 68, 69...Guide roller, 71...Anti-reflection sheet.
Claims (1)
ツタブロツクに対し、フレキシブルプリント基板
を介してカメラボデイ側から動作信号を与える、
フレキシブルプリント基板を有するレンズシヤツ
タ式カメラにおいて、 上記フレキシブルプリント基板のレンズ光軸側
の表面に、該フレキシブルプリント基板とは別部
材からなる反射防止シートを重ね、 この重ねたフレキシブルプリント基板および反
射防止シートの中間部分を、２か所で折り返して
Ｓ字状に屈曲させたことを特徴とするフレキシブ
ルプリント基板を有するレンズシヤツタ式カメ
ラ。[Scope of Claim for Utility Model Registration] An operation signal is given from the camera body side via a flexible printed circuit board to a shutter block mounted on a member that moves in the optical axis direction of a lens barrel.
In a lens shutter type camera having a flexible printed circuit board, an anti-reflection sheet made of a separate material from the flexible printed circuit board is stacked on the surface of the flexible printed circuit board on the lens optical axis side, and the overlapped flexible printed circuit board and anti-reflection sheet are A lens shutter type camera having a flexible printed circuit board whose middle part is folded back at two places to form an S-shape.
Priority Applications (65)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986132660U JPH0422332Y2 (en) | 1986-08-29 | 1986-08-29 | |
| EP92105341A EP0495532B1 (en) | 1986-05-12 | 1987-05-12 | Photographic optical system and camera including such a system |
| DE3751657T DE3751657T2 (en) | 1986-05-12 | 1987-05-12 | Opening and closing mechanism for a lens |
| CA000536919A CA1312231C (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including zoom lens |
| DE8718027U DE8718027U1 (en) | 1986-05-12 | 1987-05-12 | CENTRAL LOCKING CAMERA WITH VARIO OPTICS |
| AU73955/87A AU606343B2 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera |
| AT92105357T ATE132276T1 (en) | 1986-05-12 | 1987-05-12 | OPENING AND CLOSING MECHANISM FOR A LENS |
| EP92105343A EP0498467B1 (en) | 1986-05-12 | 1987-05-12 | Flexible printed circuit with anti-reflection device for a lens shutter camera |
| AT92105344T ATE121200T1 (en) | 1986-05-12 | 1987-05-12 | PHOTOGRAPHIC OPTICAL SYSTEM AND CAMERA COMPRISING SUCH SYSTEM. |
| AT92105343T ATE126902T1 (en) | 1986-05-12 | 1987-05-12 | FLEXIBLE PRINTED CIRCUIT WITH ANTI-REFLECTION DEVICE FOR A CENTRAL SHUTTER CAMERA. |
| DE8718017U DE8718017U1 (en) | 1986-05-12 | 1987-05-12 | CENTRAL LOCKING CAMERA WITH VARIO LENS |
| EP92105344A EP0497383B1 (en) | 1986-05-12 | 1987-05-12 | Photographic optical system and camera including such a system |
| EP87902775A EP0266435B1 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including zoom lens |
| DE8717978U DE8717978U1 (en) | 1986-05-12 | 1987-05-12 | Camera with zoom lens and zoom finder |
| DE3751241T DE3751241T2 (en) | 1986-05-12 | 1987-05-12 | Photographic optical system and camera with such a system. |
| KR1019880700027A KR940010590B1 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including zoom-lens |
| AT93110717T ATE141693T1 (en) | 1986-05-12 | 1987-05-12 | INTERMEDIATE LENS CAMERA WITH ZOOMO LENS |
| AT92105341T ATE126358T1 (en) | 1986-05-12 | 1987-05-12 | PHOTOGRAPHIC-OPTICAL SYSTEM AND CAMERA COMPRISING SUCH A SYSTEM. |
| DE8718028U DE8718028U1 (en) | 1986-05-12 | 1987-05-12 | CENTRAL LOCKING CAMERA WITH VARIO LENS |
| PCT/JP1987/000293 WO1987007038A1 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including zoom lens |
| AT92105342T ATE126363T1 (en) | 1986-05-12 | 1987-05-12 | GUIDING MECHANISM FOR A FLEXIBLE PRINTED CIRCUIT BOARD IN AN INTERMEDIATE LENS SHUTTER CAMERA. |
| AT87902775T ATE112071T1 (en) | 1986-05-12 | 1987-05-12 | INTER-LENS SHUTTER CAMERA WITH ZOOM LENS. |
| EP92105357A EP0510379B1 (en) | 1986-05-12 | 1987-05-12 | Lens cap opening and closing mechanism |
| DE3751456T DE3751456T2 (en) | 1986-05-12 | 1987-05-12 | Guide mechanism for a flexible printed circuit board in an inter-lens shutter camera. |
| DE8718024U DE8718024U1 (en) | 1986-05-12 | 1987-05-12 | CENTRAL LOCKING CAMERA WITH VARIO LENS |
| KR1019950703637A KR0149575B1 (en) | 1986-05-12 | 1987-05-12 | Zoom camera |
| DE3751879T DE3751879T2 (en) | 1986-05-12 | 1987-05-12 | Intermediate lens shutter camera with zoom lens |
| DE3751481T DE3751481T2 (en) | 1986-05-12 | 1987-05-12 | Flexible printed circuit with anti-reflection device for a central locking camera. |
| DE3751455T DE3751455T2 (en) | 1986-05-12 | 1987-05-12 | Photographic-optical system and camera with such a system. |
| DE3750569T DE3750569T2 (en) | 1986-05-12 | 1987-05-12 | INTERMEDIATE LENS CAMERA WITH ZOOM LENS. |
| SG1996004214A SG49701A1 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including a zoom lens system |
| EP92105342A EP0495533B1 (en) | 1986-05-12 | 1987-05-12 | Guide mechanism of a flexible printed circuit board for a lens shutter camera |
| EP93110717A EP0569051B1 (en) | 1986-05-12 | 1987-05-12 | Lens shutter camera including a zoom lens system |
| DE8718025U DE8718025U1 (en) | 1986-05-12 | 1987-05-12 | CENTRAL LOCKING CAMERA WITH VARIO VIEWFINDER |
| US90/002261A US4944030B1 (en) | 1986-05-12 | 1988-01-07 | Lens shutter camera including zoom lens |
| KR1019880700027A KR0165530B1 (en) | 1986-05-12 | 1988-01-12 | Lens shutter camera including zoom-lens |
| US07/486,914 US5214462A (en) | 1986-05-12 | 1990-02-14 | Lens shutter camera including zoom lens and barrier mechanisms |
| US07/480,213 US5150145A (en) | 1986-05-12 | 1990-02-14 | Lens shutter camera including zoom lens |
| US07/480,069 US5264885A (en) | 1986-05-12 | 1990-02-14 | Lens shutter camera including zoom lens |
| US07486915 US5012273B1 (en) | 1986-05-12 | 1990-02-14 | Lens shutter type of camera including zoom lens |
| US07/480,214 US5157429A (en) | 1986-05-12 | 1990-02-14 | Lens shutter camera including zoom lens |
| US07/480,217 US5142315A (en) | 1986-05-12 | 1990-02-14 | Lens shutter type of camera including zoom lens |
| US07/480,215 US5016032A (en) | 1986-05-12 | 1990-02-14 | Lens shutter camera including zoom lens |
| AU57608/90A AU630973B2 (en) | 1986-05-12 | 1990-06-19 | Lens shutter camera including zoom lens |
| AU57611/90A AU630975B2 (en) | 1986-05-12 | 1990-06-19 | Lens shutter camera including zoom lens |
| AU57610/90A AU630974B2 (en) | 1986-05-12 | 1990-06-19 | Lens shutter camera including zoom lens |
| KR92700198A KR0145090B1 (en) | 1986-05-12 | 1992-01-28 | Lens shutter camera including zoom lens |
| CA000616418A CA1333016C (en) | 1986-08-29 | 1992-06-25 | Lens shutter camera including zoom lens |
| US07/924,631 US5321462A (en) | 1986-05-12 | 1992-08-04 | Lens shutter camera including zoom lens |
| US07/924,524 US5276475A (en) | 1986-05-12 | 1992-08-04 | Lens shutter camera including zoom lens |
| US08/071,107 US5424796A (en) | 1986-05-12 | 1993-06-04 | Lens shutter camera including zoom lens |
| US08/222,697 US5465131A (en) | 1986-05-12 | 1994-03-10 | Lens shutter camera including zoom lens |
| CA000616837A CA1337712C (en) | 1986-08-29 | 1994-03-17 | Lens shutter camera including zoom lens |
| US08/463,259 US5583596A (en) | 1986-05-12 | 1995-06-03 | Lens shutter camera including zoom lens |
| US08/462,687 US5673099A (en) | 1986-05-12 | 1995-06-05 | Lens shutter camera including zoom lens |
| KR1019950703638A KR960702910A (en) | 1986-05-12 | 1995-08-28 | Lens shutter type zoom lens camera |
| US08/646,114 US5713051A (en) | 1986-05-12 | 1996-05-07 | Lens shutter camera including zoom lens |
| US08/838,016 US5966551A (en) | 1986-05-12 | 1997-04-22 | Lens shutter camera including zoom lens |
| HK98100937A HK1001906A1 (en) | 1986-05-12 | 1998-02-06 | Guide mechanism of a flexible printed circuit board for a lens shutter camera |
| HK98100938A HK1001900A1 (en) | 1986-05-12 | 1998-02-06 | Lens shutter camera including a zoom lens system |
| HK98100942A HK1001904A1 (en) | 1986-05-12 | 1998-02-06 | Photographic optical system and camera including such a system |
| HK98100941A HK1001903A1 (en) | 1986-05-12 | 1998-02-06 | Photographic optical system and camera including such a system |
| HK98100936A HK1001905A1 (en) | 1986-05-12 | 1998-02-06 | Lens shutter camera including zoom lens |
| HK98100939A HK1001901A1 (en) | 1986-05-12 | 1998-02-06 | Flexible printed circuit with anti-reflection device for a lens shutter camera |
| HK98100940A HK1001902A1 (en) | 1986-05-12 | 1998-02-06 | Lens cap opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986132660U JPH0422332Y2 (en) | 1986-08-29 | 1986-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6339217U JPS6339217U (en) | 1988-03-14 |
| JPH0422332Y2 true JPH0422332Y2 (en) | 1992-05-21 |
Family
ID=31032256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986132660U Expired JPH0422332Y2 (en) | 1986-05-12 | 1986-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422332Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0436153Y2 (en) * | 1986-12-27 | 1992-08-26 | ||
| JP2531705Y2 (en) * | 1987-06-12 | 1997-04-09 | 富士写真光機 株式会社 | Camera flexible printed board |
| JPH0753052Y2 (en) * | 1989-05-22 | 1995-12-06 | 旭光学工業株式会社 | Lens flexible board mounting structure |
| JP2571311B2 (en) * | 1990-12-24 | 1997-01-16 | マミヤ・オーピー株式会社 | Lens with lens shutter |
| JP2009217014A (en) * | 2008-03-11 | 2009-09-24 | Canon Inc | Lens barrel and photographing device |
| JP5296836B2 (en) * | 2010-06-14 | 2013-09-25 | パナソニック株式会社 | Lens barrel |
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|---|---|---|---|---|
| JPS59135405A (en) * | 1983-01-22 | 1984-08-03 | Kowa Co | Light shielding plate of lens moving pole in camera or the like |
| JPS61118736A (en) * | 1984-11-15 | 1986-06-06 | Minolta Camera Co Ltd | Subordinate lens driving device of bifocal camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59128609U (en) * | 1983-12-21 | 1984-08-29 | キヤノン株式会社 | Electrical wiring device inside the lens barrel |
| JPS6187415U (en) * | 1984-11-12 | 1986-06-07 |
-
1986
- 1986-08-29 JP JP1986132660U patent/JPH0422332Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59135405A (en) * | 1983-01-22 | 1984-08-03 | Kowa Co | Light shielding plate of lens moving pole in camera or the like |
| JPS61118736A (en) * | 1984-11-15 | 1986-06-06 | Minolta Camera Co Ltd | Subordinate lens driving device of bifocal camera |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6339217U (en) | 1988-03-14 |
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