JPH0531634Y2 - - Google Patents

Info

Publication number
JPH0531634Y2
JPH0531634Y2 JP1986125045U JP12504586U JPH0531634Y2 JP H0531634 Y2 JPH0531634 Y2 JP H0531634Y2 JP 1986125045 U JP1986125045 U JP 1986125045U JP 12504586 U JP12504586 U JP 12504586U JP H0531634 Y2 JPH0531634 Y2 JP H0531634Y2
Authority
JP
Japan
Prior art keywords
annular
lens barrel
light
lens
front cover
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 - Lifetime
Application number
JP1986125045U
Other languages
Japanese (ja)
Other versions
JPS6330837U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986125045U priority Critical patent/JPH0531634Y2/ja
Priority to DE8718028U priority patent/DE8718028U1/en
Priority to KR1019920700197A priority patent/KR0156267B1/en
Priority to DE8718025U priority patent/DE8718025U1/en
Priority to DE3751241T priority patent/DE3751241T2/en
Priority to KR1019950703637A priority patent/KR0149575B1/en
Priority to DE8718024U priority patent/DE8718024U1/en
Priority to AT87902775T priority patent/ATE112071T1/en
Priority to DE8717978U priority patent/DE8717978U1/en
Priority to DE3751481T priority patent/DE3751481T2/en
Priority to DE8718027U priority patent/DE8718027U1/en
Priority to AT92105344T priority patent/ATE121200T1/en
Priority to SG1996004214A priority patent/SG49701A1/en
Priority to DE3751657T priority patent/DE3751657T2/en
Priority to EP92105342A priority patent/EP0495533B1/en
Priority to EP92105343A priority patent/EP0498467B1/en
Priority to DE8718017U priority patent/DE8718017U1/en
Priority to EP92105341A priority patent/EP0495532B1/en
Priority to DE3750569T priority patent/DE3750569T2/en
Priority to EP87902775A priority patent/EP0266435B1/en
Priority to AT92105342T priority patent/ATE126363T1/en
Priority to AT93110717T priority patent/ATE141693T1/en
Priority to DE3751879T priority patent/DE3751879T2/en
Priority to EP93110717A priority patent/EP0569051B1/en
Priority to AU73955/87A priority patent/AU606343B2/en
Priority to KR1019880700027A priority patent/KR940010590B1/en
Priority to DE3751456T priority patent/DE3751456T2/en
Priority to AT92105343T priority patent/ATE126902T1/en
Priority to EP92105357A priority patent/EP0510379B1/en
Priority to CA000536919A priority patent/CA1312231C/en
Priority to EP92105344A priority patent/EP0497383B1/en
Priority to DE3751455T priority patent/DE3751455T2/en
Priority to PCT/JP1987/000293 priority patent/WO1987007038A1/en
Priority to AT92105341T priority patent/ATE126358T1/en
Priority to AT92105357T priority patent/ATE132276T1/en
Priority to US90/002261A priority patent/US4944030B1/en
Priority to KR1019880700027A priority patent/KR0165530B1/en
Publication of JPS6330837U publication Critical patent/JPS6330837U/ja
Priority to US07/480,217 priority patent/US5142315A/en
Priority to US07/480,215 priority patent/US5016032A/en
Priority to US07/480,069 priority patent/US5264885A/en
Priority to US07486915 priority patent/US5012273B1/en
Priority to US07/480,214 priority patent/US5157429A/en
Priority to US07/486,914 priority patent/US5214462A/en
Priority to US07/480,213 priority patent/US5150145A/en
Priority to AU57608/90A priority patent/AU630973B2/en
Priority to AU57611/90A priority patent/AU630975B2/en
Priority to AU57606/90A priority patent/AU638257C/en
Priority to AU57612/90A priority patent/AU630976B2/en
Priority to AU57610/90A priority patent/AU630974B2/en
Priority to CA000616424A priority patent/CA1329887C/en
Priority to US07/924,524 priority patent/US5276475A/en
Priority to US07/924,631 priority patent/US5321462A/en
Priority to US08/071,107 priority patent/US5424796A/en
Application granted granted Critical
Publication of JPH0531634Y2 publication Critical patent/JPH0531634Y2/ja
Priority to US08/222,697 priority patent/US5465131A/en
Priority to US08/463,259 priority patent/US5583596A/en
Priority to US08/462,687 priority patent/US5673099A/en
Priority to KR1019950703638A priority patent/KR960702910A/en
Priority to US08/646,114 priority patent/US5713051A/en
Priority to US08/838,016 priority patent/US5966551A/en
Priority to HK98100942A priority patent/HK1001904A1/en
Priority to HK98100939A priority patent/HK1001901A1/en
Priority to HK98100941A priority patent/HK1001903A1/en
Priority to HK98100937A priority patent/HK1001906A1/en
Priority to HK98100938A priority patent/HK1001900A1/en
Priority to HK98100940A priority patent/HK1001902A1/en
Priority to HK98100936A priority patent/HK1001905A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
にその進退レンズ筒外周部からの有害光をカツト
する遮光装置に関する。[Detailed Description of the Invention] [Technical Field] The present invention relates to a lens shutter type camera, and particularly to a light shielding device that cuts out harmful light from the outer periphery of a retractable lens barrel.

「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た（特願昭61−108278
号、特開昭62−264034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
ようにしているが、前後二群のレンズを支持した
進退レンズ筒の間には隙間が存在するため、この
進退レンズ筒の外周からレンズ系内へ有害光が入
射するのを防止する必要がある。"Prior art and its problems" The applicant previously proposed a lens shutter type camera with a zoom function (Patent application No. 108278/1983).
(Japanese Patent Publication No. 62-264034). In this lens shutter type camera, zooming is performed by operating at least the two front and rear lens groups independently in the direction of the optical axis, but there is a gap between the forward and backward lens barrels that support the front and rear two lens groups. Therefore, it is necessary to prevent harmful light from entering the lens system from the outer periphery of the reciprocating lens barrel.

「考案の目的」 本考案は、このような独立して光軸方向に作動
する少なくとも二つの進退レンズ筒を有するレン
ズシヤツタ式カメラにおいて、その最前方の進退
レンズ筒の外周からの有害光の入射を防止できる
装置を得ることを目的とする。``Purpose of the invention'' The present invention aims to prevent the incidence of harmful light from the outer periphery of the frontmost retractable lens barrel in a lens shutter type camera having at least two retractable lens barrels that operate independently in the direction of the optical axis. The purpose is to obtain a device that can prevent this.

「考案の概要」 本考案は、内方フランジを有し、この内方フラ
ンジに進退レンズ筒が進退する進退開口を形成し
た前カバーの内側に、上記内方フランジとの間に
環状空間を形成する環状部材を位置させ、この環
状空間内に、内周面の弾性遮光リツプ部が進退レ
ンズ筒の外周面と摺接する環状遮光部部材を挿入
し、かつこの環状遮光部材は、固定することな
く、進退レンズ筒の進退に伴ない移動可能な浮動
状態で保持したことを特徴としている。``Summary of the invention'' The invention forms an annular space between the front cover, which has an inner flange, and an opening through which a retractable lens barrel moves forward and backward, and an annular space between the front cover and the inner flange. A ring-shaped light-shielding member is inserted into this annular space, and an annular light-shielding member whose inner circumferential surface has an elastic light-shielding lip that slides in contact with the outer circumferential surface of the retractable lens barrel, and this annular light-shielding member is not fixed. , is characterized in that it is held in a floating state so that it can move as the lens barrel advances and retreats.

「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５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ブロツク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６図ないし第８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 5, this lens shutter type camera consists of a lens barrel block 1 of a zoom lens, a viewfinder and a strobe block 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 attached to the base plate 6, which is the fixed part of the camera body.
(See Figures 6 to 8).

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 part 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９図および第１０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には光軸と平行な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, 9, and 10. The lens barrel block 1 of this embodiment 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 parallel to the optical axis are fixed to the rear fixing plate 11, and a front fixing plate 13 is fixed to the tips of the guide rods 12. 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ギヤ１５が固定ねじ１５ａ
（第１図）で固定されている。このギヤ１５は、
カムリング１４の回動範囲をカバーするセクタギ
ヤでよい。カムリング１４には、前群用、後群用
のズーミングカム溝２０，２１が切られている。 A cam ring 14 is rotatably supported between the rear fixing plate 11 and the front fixing plate 13, and a gear 15 that engages with the pinion 7 directly or through a gear train is attached to the outer periphery of the cam ring 14 with a fixing screw 15a.
(Fig. 1). This gear 15 is
A sector gear that covers the rotation range of the cam ring 14 may be used. The cam ring 14 has zooming cam grooves 20 and 21 for the front group and the rear group.

第９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
２１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θ
２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の開動によつて、
一対のバリヤ３１を開閉するものである。 FIG. 9 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 total angle θ1 of the lens storage section 20b and the wide-angle end fixed section 20c is the same as the angle θ1 of the wide-angle end fixed section 21a of the zooming cam groove 21, and the angle θ1 of the variable power section 20d and the variable power section 21b
2 are the same, and the total angle θ3 of the telephoto end fixed section 20e, macro feeding section 20f, and macro fixed section 20g is the angle θ3 of the telephoto end fixed section 21c.
is the same as The barrier block 30 is activated by opening and closing the barrier opening/closing section 20a of the cam ring 14.
It opens and closes a pair of barriers 31.

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、さらに閉じられているシヤツタ（セクタ）２
３ｂを所定時間開いた後再び閉じてから、レンズ
繰出レバー２３ａを元の位置に復帰させる。 Shutter block 23 itself is well known. The built-in pulse motor rotates the lens extension lever 23a by an angle corresponding to the distance measurement signal from the distance measurement device having the light emitting section 3 and the light receiving section 4, and further closes the shutter (sector) 2.
3b is opened for a predetermined time and then closed again, and then the lens feeding lever 23a is returned to its original position.

以上の構成から明らかなように、前群用進退レ
ンズ筒１６（飾枠２２）と後群用進退レンズ筒１
８とは、相対的に移動し、両者の間には隙間が存
在する。したがつて飾枠２２の外周から入つた光
がこの隙間からレンズ系内に進入する可能性があ
り、進入すると、明らかにフイルムに有害な露光
を与えてしまう。 As is clear from the above configuration, the front group retractable lens tube 16 (decorative frame 22) and the rear group retractable lens tube 1
8 moves relatively, and there is a gap between them. Therefore, there is a possibility that light entering from the outer periphery of the decorative frame 22 may enter the lens system through this gap, and if it enters, it will obviously give harmful exposure to the film.

本考案は、この有害光をカツトするために、カ
ムリング１４の前部を回動自在に支持した前固定
板１３と、前カバー６０の先端の内方フランジ６
２（第１図）との間に、遮光部材挿入のための環
状空間６１を形成し、この環状空間６１に環状遮
光部材７０を挿入している。前カバー６０は、鏡
筒ブロツク１の前面を覆うとともに、フアインダ
およびストロボブロツク２のレンズＬ３およびＬ
６を支持するもので、その内方フランジ６２の内
周が、飾枠２２（前群用進退レンズ筒１６）の進
退開口６３を構成している。内方フランジ６２と
前固定板（環状部材）１３との間に形成された環
状空間６１は、幅Ｌの狭い空間である。 In order to cut out this harmful light, the present invention includes a front fixing plate 13 that rotatably supports the front part of the cam ring 14, and an inner flange 6 at the tip of the front cover 60.
2 (FIG. 1), an annular space 61 for inserting a light shielding member is formed, and an annular light shielding member 70 is inserted into this annular space 61. The front cover 60 covers the front surface of the lens barrel block 1 and covers the lenses L3 and L of the viewfinder and strobe block 2.
6, and the inner periphery of the inner flange 62 constitutes the advancing/retracting opening 63 of the decorative frame 22 (the advancing/retracting lens barrel 16 for the front group). The annular space 61 formed between the inner flange 62 and the front fixing plate (annular member) 13 is a narrow space with a width L.

この環状空間６１内に挿入された環状遮光部材
７０は、第２図、第３図にその詳細を示すよう
に、ゴム等の環状弾性体７１と、環状補強板７２
とから、全体として偏平なリング状に形成されて
いる。その厚さｌは、環状空間６１の幅Ｌより僅
かに小さく設定され、環状空間６１内で光軸方向
に若干動き得る。そしてこの環状遮光部材７０の
環状弾性体７１の内周部には、飾枠２２の外周面
に摺接する幅の狭い弾性遮光リツプ７３が形成さ
れている。環状弾性体７１と環状補強板７２の固
定は、環状補強板７２に形成した結合孔７４内に
環状弾性体７１を嵌め込んで行なつている。環状
補強板７２は金属、合成樹脂等から構成するもの
である。 As shown in detail in FIGS. 2 and 3, the annular light shielding member 70 inserted into the annular space 61 includes an annular elastic body 71 made of rubber or the like and an annular reinforcing plate 72.
As a result, it is formed into a flat ring shape as a whole. Its thickness l is set slightly smaller than the width L of the annular space 61, and it can move slightly in the optical axis direction within the annular space 61. A narrow elastic light-shielding lip 73 is formed on the inner circumferential portion of the annular elastic body 71 of the annular light-shielding member 70 so as to be in sliding contact with the outer circumferential surface of the decorative frame 22. The annular elastic body 71 and the annular reinforcing plate 72 are fixed by fitting the annular elastic body 71 into a coupling hole 74 formed in the annular reinforcing plate 72. The annular reinforcing plate 72 is made of metal, synthetic resin, or the like.

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
の光軸方向への移動に際し、進退レンズ筒１６の
一部を構成する飾枠２２は、前カバー６０の進退
開口６３から進退し、この際、環状遮光部材７０
の遮光リツプ７３は、飾枠２２の外周に摺接し
て、飾枠２２の外周部から進入しようとする有害
光をカツトする。環状遮光部材７０は、環状空間
６１内に浮動状態で支持されているため、飾枠２
２と環状遮光部材７０との同心関係が狂うことは
なく、また飾枠２２が移動方向を反転すると、遮
光リツプ７３がこれに追従して変形するため、飾
枠２２の移動方向の反転に際しても、有害光のカ
ツト機能が損なわれることはない。 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
When moving in the optical axis direction, the decorative frame 22 forming a part of the reciprocating lens barrel 16 advances and retreats from the reciprocating opening 63 of the front cover 60, and at this time, the annular light shielding member 70
The light-shielding lip 73 slides on the outer periphery of the decorative frame 22 to block harmful light that attempts to enter from the outer periphery of the decorative frame 22. Since the annular light shielding member 70 is supported in a floating state within the annular space 61, the decorative frame 2
The concentric relationship between the decorative frame 22 and the annular light-shielding member 70 will not be disturbed, and when the decorative frame 22 reverses its moving direction, the light-shielding lip 73 will follow and deform. , the harmful light cutting function is not impaired.

第４図は、環状遮光部材７０の内周部の遮光リ
ツプ７３の数を２枚にして、有害光の進入をより
確実に防止するようにした実施例である。 FIG. 4 shows an embodiment in which the number of light shielding lips 73 on the inner peripheral portion of the annular light shielding member 70 is set to two to more reliably prevent entry of harmful light.

なおカムリング１４のカム溝２０，２１からの
有害光の進入防止は、例えばカム溝２０，２１の
外周に遮光テープを巻く等の手段によつて別に行
なうものであつて、本考案はこちら側の遮光手段
は問わない。 It should be noted that prevention of harmful light from entering the cam grooves 20 and 21 of the cam ring 14 is carried out separately, for example, by wrapping a light-shielding tape around the outer periphery of the cam grooves 20 and 21. The light shielding method does not matter.

最後に第５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５
３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５３ａが一体に
設けられている。減速ギヤ列５２は、ギヤ１５の
回転を減速し、カムリング１４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. 5 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 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 provided at its rear end. It is being The final gear 52a of the reduction gear train 52 meshes with a rack 53a of the cam plate 53. Cam plate 5
3 is slidable in the left-right direction, and a rack 53a is integrally provided at the tip (lower end) of a lower bent portion 53b at the rear end. The reduction gear train 52 reduces the rotation of the gear 15, reduces the movement of the cam ring 14, and applies the reduced movement 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
よる視野を大略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 is used to roughly match the photographic screen obtained by the variable magnification operation of the lens barrel block 1 with the field of view obtained by the finder device 8, and the deflection prism P1 is advanced onto the optical axis only during macro photography to avoid parallax. Correct. In other words, as mentioned above, parallax is unavoidable in a lens shutter type camera, and the amount of parallax increases the closer you shoot, but the camera of this embodiment is capable of macro photography, and the amount of parallax increases in this case. Therefore, only during macro photography, a wedge-shaped deflection prism P1 that is thick at the bottom and thin at the top is inserted into the optical path to bend the optical path downward, so that a portion closer to the photographed area can be observed.

なお以上の実施例は、ズーミングを行なうため
に進退レンズ筒を前後の二つに分割したものであ
るが、フオーカシングを行なうために同様に進退
レンズ筒を複数に分割する場合にも本考案は同様
に適用可能である。 In the above embodiment, the retractable lens barrel is divided into two parts, front and rear, for zooming, but the present invention can be applied in the same manner when the retractable lens barrel is divided into a plurality of parts for focusing. Applicable to

「考案の効果」 以上のように本考案は、進退レンズ筒の進退開
口を有する前カバーの内側に、該前カバーの内方
フランジと環状部材とによつて環状空間を形成
し、この環状空間に、前カバーにも環状部材にも
固定することなく浮動状態で環状遮光部材を配設
し、この環状遮光部材の内周部の弾性遮光リツプ
部を進退レンズ筒に摺接させるという、独自の構
成により、進退レンズ筒の外周を通してカメラ内
に有害光が進入するのを確実に防止することがで
きる。"Effect of the invention" As described above, the present invention forms an annular space inside the front cover having an opening for reciprocating the reciprocating lens barrel by the inner flange of the front cover and the annular member. In addition, the annular light-shielding member is placed in a floating state without being fixed to the front cover or the annular member, and the elastic light-shielding lip on the inner circumference of this annular light-shielding member slides into contact with the retractable lens barrel. With this configuration, it is possible to reliably prevent harmful light from entering the camera through the outer periphery of the retractable lens barrel.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案のレンズシヤツタ方式カメラの
遮光装置の実施例を示す縦断面図、第２図は環状
遮光体の斜視図、第３図は第２図の−線に沿
う断面図、第４図は本考案の別の実施例を示す第
３図と同様の断面図、第５図は本考案を適用する
レンズシヤツタ式カメラの全体の概略を示す斜視
図、第６図はカメラボデイに固定される台板部分
の正面図、第７図は第６図の−線に沿う断面
図、第８図は第６図の平面図、第９図はカムリン
グの展開図、第１０図は本考案を適用するレンズ
シヤツタ式カメラの要部の分解斜視図である。 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、１３……前固定板（環状部材）、
１４……カムリング、２０，２１……ズーミング
カム溝、１６……前群用進退レンズ筒、２２……
飾枠（進退レンズ筒）、１８……後群用進退レン
ズ筒、６０……前カバー、６１……環状空間、６
２……内方フランジ、６３……進退開口、７０…
…環状遮光部材、７１……環状弾性体、７２……
環状補強板、７３……弾性遮光リツプ。 Fig. 1 is a longitudinal sectional view showing an embodiment of the light shielding device for a lens shutter camera according to the present invention, Fig. 2 is a perspective view of an annular light shield, Fig. 3 is a sectional view taken along the - line in Fig. The figure is a sectional view similar to FIG. 3 showing another embodiment of the present invention, FIG. 5 is a perspective view showing the overall outline of a lens shutter type camera to which the present invention is applied, and FIG. 7 is a sectional view taken along the line - in FIG. 6, FIG. 8 is a plan view of FIG. 6, FIG. 9 is a developed view of the cam ring, and FIG. FIG. 2 is an exploded perspective view of the main parts of the applied lens shutter type camera. 1...Lens barrel block, 2...Finder and strobe block, 5...Zoom motor, 8...
Finder device, 13...front fixing plate (annular member),
14...Cam ring, 20, 21...Zooming cam groove, 16...Movement/retraction lens barrel for front group, 22...
Decorative frame (retractable lens barrel), 18... Rear group lens barrel, 60... Front cover, 61... Annular space, 6
2...Inner flange, 63...Advance/retreat opening, 70...
...Annular light shielding member, 71...Annular elastic body, 72...
Annular reinforcing plate, 73...Elastic light-shielding lip.

Claims (1)

【実用新案登録請求の範囲】 (1) 内方フランジを有し、この内方フランジに進
退レンズ筒が進退する進退開口を有するカメラ
の前カバー； この前カバーの内側に位置し、該前カバーの
上記内方フランジとの間に環状空間を形成する
環状部材； この環状部材および上記前カバーの進退開口
を通つて光軸方向に進退する進退レンズ筒；お
よび、 内周面に上記進退レンズ筒の外周面と摺接す
る弾性遮光リツプ部を備え、上記環状空間内
に、上記前カバーおよび環状部材に固定するこ
となく、該進退レンズ筒の進退に伴ない移動可
能な浮動状態で保持されている環状遮光部材； とを備えたことを特徴とするレンズシヤツタ式
カメラの遮光装置。 (2) 実用新案登録請求の範囲第１項において、環
状遮光部材は、弾性遮光リツプ部を有する環状
弾性体と、この環状弾性体の遮光リツプより外
周部に一体化した、環状補強板とから構成され
ているレンズシヤツタ式カメラの遮光装置。[Claims for Utility Model Registration] (1) A front cover of a camera having an inner flange and an opening through which a retractable lens barrel moves forward and backward; an annular member forming an annular space between the annular member and the inner flange of the front cover; a reciprocating lens barrel that advances and retracts in the optical axis direction through the annular member and the reciprocating opening of the front cover; and the reciprocating lens barrel on the inner peripheral surface. The lens barrel is provided with an elastic light-shielding lip portion that comes into sliding contact with the outer circumferential surface of the lens barrel, and is held in the annular space in a floating state that is movable as the lens barrel advances and retreats without being fixed to the front cover and the annular member. A light shielding device for a lens shutter type camera, comprising: an annular light shielding member; (2) In claim 1 of the utility model registration claim, the annular light-shielding member consists of an annular elastic body having an elastic light-shielding lip portion, and an annular reinforcing plate integrated with the outer peripheral portion of the light-shielding lip of the annular elastic body. A light shielding device for a lens shutter type camera.
JP1986125045U 1986-05-12 1986-08-15 Expired - Lifetime JPH0531634Y2 (en)

Priority Applications (66)

Application Number Priority Date Filing Date Title
JP1986125045U JPH0531634Y2 (en) 1986-08-15 1986-08-15
DE8718028U DE8718028U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
KR1019920700197A KR0156267B1 (en) 1986-05-12 1987-05-12 Apparatus of light shutter for a camera
DE8718025U DE8718025U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO VIEWFINDER
DE3751241T DE3751241T2 (en) 1986-05-12 1987-05-12 Photographic optical system and camera with such a system.
KR1019950703637A KR0149575B1 (en) 1986-05-12 1987-05-12 Zoom camera
DE8718024U DE8718024U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
AT87902775T ATE112071T1 (en) 1986-05-12 1987-05-12 INTER-LENS SHUTTER CAMERA WITH ZOOM LENS.
DE8717978U DE8717978U1 (en) 1986-05-12 1987-05-12 Camera with zoom lens and zoom finder
DE3751481T DE3751481T2 (en) 1986-05-12 1987-05-12 Flexible printed circuit with anti-reflection device for a central locking camera.
DE8718027U DE8718027U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO OPTICS
AT92105344T ATE121200T1 (en) 1986-05-12 1987-05-12 PHOTOGRAPHIC OPTICAL SYSTEM AND CAMERA COMPRISING SUCH SYSTEM.
SG1996004214A SG49701A1 (en) 1986-05-12 1987-05-12 Lens shutter camera including a zoom lens system
DE3751657T DE3751657T2 (en) 1986-05-12 1987-05-12 Opening and closing mechanism for a lens
EP92105342A EP0495533B1 (en) 1986-05-12 1987-05-12 Guide mechanism of a flexible printed circuit board for a lens shutter camera
EP92105343A EP0498467B1 (en) 1986-05-12 1987-05-12 Flexible printed circuit with anti-reflection device for a lens shutter camera
DE8718017U DE8718017U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
EP92105341A EP0495532B1 (en) 1986-05-12 1987-05-12 Photographic optical system and camera including such a system
DE3750569T DE3750569T2 (en) 1986-05-12 1987-05-12 INTERMEDIATE LENS CAMERA WITH ZOOM LENS.
EP87902775A EP0266435B1 (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.
AT93110717T ATE141693T1 (en) 1986-05-12 1987-05-12 INTERMEDIATE LENS CAMERA WITH ZOOMO LENS
DE3751879T DE3751879T2 (en) 1986-05-12 1987-05-12 Intermediate lens shutter camera with zoom lens
EP93110717A EP0569051B1 (en) 1986-05-12 1987-05-12 Lens shutter camera including a zoom lens system
AU73955/87A AU606343B2 (en) 1986-05-12 1987-05-12 Lens shutter camera
KR1019880700027A KR940010590B1 (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom-lens
DE3751456T DE3751456T2 (en) 1986-05-12 1987-05-12 Guide mechanism for a flexible printed circuit board in an inter-lens shutter camera.
AT92105343T ATE126902T1 (en) 1986-05-12 1987-05-12 FLEXIBLE PRINTED CIRCUIT WITH ANTI-REFLECTION DEVICE FOR A CENTRAL SHUTTER CAMERA.
EP92105357A EP0510379B1 (en) 1986-05-12 1987-05-12 Lens cap opening and closing mechanism
CA000536919A CA1312231C (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom lens
EP92105344A EP0497383B1 (en) 1986-05-12 1987-05-12 Photographic optical system and camera including such a system
DE3751455T DE3751455T2 (en) 1986-05-12 1987-05-12 Photographic-optical system and camera with such a system.
PCT/JP1987/000293 WO1987007038A1 (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom lens
AT92105341T ATE126358T1 (en) 1986-05-12 1987-05-12 PHOTOGRAPHIC-OPTICAL SYSTEM AND CAMERA COMPRISING SUCH A SYSTEM.
AT92105357T ATE132276T1 (en) 1986-05-12 1987-05-12 OPENING AND CLOSING MECHANISM FOR A LENS
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
US07/480,217 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
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
US07/486,914 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
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
AU57606/90A AU638257C (en) 1986-05-12 1990-06-19 Lens shutter camera including zoom lens
AU57612/90A AU630976B2 (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
CA000616424A CA1329887C (en) 1986-08-15 1992-06-25 Lens shutter camera including zoom lens
US07/924,524 US5276475A (en) 1986-05-12 1992-08-04 Lens shutter camera including zoom lens
US07/924,631 US5321462A (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
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
HK98100942A HK1001904A1 (en) 1986-05-12 1998-02-06 Photographic optical system and camera including such a system
HK98100939A HK1001901A1 (en) 1986-05-12 1998-02-06 Flexible printed circuit with anti-reflection device for a lens shutter camera
HK98100941A HK1001903A1 (en) 1986-05-12 1998-02-06 Photographic optical system and camera including such a system
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
HK98100940A HK1001902A1 (en) 1986-05-12 1998-02-06 Lens cap opening and closing mechanism
HK98100936A HK1001905A1 (en) 1986-05-12 1998-02-06 Lens shutter camera including zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986125045U JPH0531634Y2 (en) 1986-08-15 1986-08-15

Publications (2)

Publication Number Publication Date
JPS6330837U JPS6330837U (en) 1988-02-29
JPH0531634Y2 true JPH0531634Y2 (en) 1993-08-13

Family

ID=31017603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986125045U Expired - Lifetime JPH0531634Y2 (en) 1986-05-12 1986-08-15

Country Status (1)

Country Link
JP (1) JPH0531634Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100394239C (en) * 2005-09-23 2008-06-11 亚洲光学股份有限公司 Varifocus lens device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2530936Y2 (en) * 1989-11-20 1997-04-02 株式会社ニコン Light leakage prevention device
JPH0618321Y2 (en) * 1988-05-20 1994-05-11 旭光学工業株式会社 Light-shielding device for lens shutter type camera

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178126U (en) * 1982-05-22 1983-11-29 株式会社ニコン waterproof lens barrel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100394239C (en) * 2005-09-23 2008-06-11 亚洲光学股份有限公司 Varifocus lens device

Also Published As

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JPS6330837U (en) 1988-02-29

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