JP2001100073A - Light shield ring for optical device - Google Patents
Light shield ring for optical deviceInfo
- Publication number
- JP2001100073A JP2001100073A JP27571399A JP27571399A JP2001100073A JP 2001100073 A JP2001100073 A JP 2001100073A JP 27571399 A JP27571399 A JP 27571399A JP 27571399 A JP27571399 A JP 27571399A JP 2001100073 A JP2001100073 A JP 2001100073A
- Authority
- JP
- Japan
- Prior art keywords
- light
- moving frame
- ring
- frame
- shielding
- 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.)
- Pending
Links
Landscapes
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、写真撮影カメ
ラ、ビデオカメラなどの光学装置に装備する遮光リング
に関し、例えば、ズ−ムレンズ鏡胴の移動枠と固定枠と
の間、または、移動枠と他の枠体との間から入射する外
光を遮光するための遮光リングとして有効なものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding ring mounted on an optical device such as a photographic camera or a video camera, for example, between a moving frame and a fixed frame of a zoom lens barrel, or between a moving frame and a fixed frame. This is effective as a light-shielding ring for shielding external light that enters from between other frames.
【０００２】[0002]
【従来の技術】カメラのズ−ムレンズ鏡胴はレンズを支
持させた移動枠を光軸方向に進退させてズ−ミングする
ために、この移動枠と固定枠の間、或いは、この移動枠
と他の枠体との間に隙間が生じ、この隙間からカメラ本
体内に外光が入射することがある。2. Description of the Related Art A zoom lens barrel of a camera moves between a moving frame and a fixed frame or between the moving frame and a fixed frame in order to perform zooming by moving a moving frame supporting a lens in an optical axis direction. A gap may be formed between the frame and another frame, and external light may enter the camera body from the gap.
【０００３】このような外光の入射を防止するため、従
来のズ−ムレンズ鏡胴は、ゴム材などからなるリング状
シ−トや成形したゴムリングを移動枠と固定枠の間や他
の枠体の間に備えている。In order to prevent such external light from entering, a conventional zoom lens barrel is provided with a ring-shaped sheet made of a rubber material or the like or a molded rubber ring provided between a moving frame and a fixed frame, and other members. It is provided between the frames.
【０００４】[0004]
【発明が解決しようとする課題】上記した遮光リング
は、移動枠の外面との摺接によって摩耗し、また、弾性
の劣化を生ずるため、経年使用によって光漏れが発生す
ることがある。その上、移動枠との摺動抵抗が大きいた
めに、その摺動抵抗が移動枠の進退動に必要以上の負荷
として加わる。The above-mentioned light-shielding ring is worn by sliding contact with the outer surface of the moving frame, and its elasticity is deteriorated, so that light leakage may occur due to long-term use. In addition, since the sliding resistance with the moving frame is large, the sliding resistance is applied as a load more than necessary for the advance and retreat of the moving frame.
【０００５】このような遮光リングによって加わる負荷
は、レンズを支持する移動枠の軽快な移動を妨げること
になる他、複数の移動枠を順次繰り出す多段繰り出しタ
イプのズ−ムレンズ鏡胴ではその影響が益々増大する。[0005] The load applied by such a light-blocking ring hinders the light movement of the moving frame that supports the lens. In addition, the load applied to a multi-stage extending type zoom lens barrel that sequentially advances a plurality of moving frames is affected. Increasingly.
【０００６】本発明は上記した実情にかんがみ、光学系
を支持する移動枠に加わる遮光リングの負荷を可能なる
かぎり少なくし、また、遮光を確実にした光学装置用遮
光リングを提供することを目的とする。In view of the above circumstances, it is an object of the present invention to provide a light-shielding ring for an optical device in which the load of a light-shielding ring applied to a moving frame supporting an optical system is reduced as much as possible, and light is reliably shielded. And
【０００７】[0007]
【課題を解決するための手段】上記した目的を達成する
ため、本発明では、光学系を支持させた移動枠と装置固
定部及び／または他の枠体との間から入射する光を遮光
するための光学装置用遮光リングにおいて、植毛紙と低
弾性シ−トとを重ねて一体化した２層構造の遮光シ−ト
を設け、この遮光シ−トを移動枠周囲にリング形成し、
上記移動枠と装置固定部及び／または他の枠体が重なる
所定部所に配設して構成したことを特徴とする光学装置
用遮光リングを提案する。In order to achieve the above-mentioned object, according to the present invention, light incident from between a moving frame supporting an optical system and a device fixing portion and / or another frame is shielded. A light-shielding ring for an optical device is provided with a light-shielding sheet having a two-layer structure in which flocked paper and a low elasticity sheet are overlapped and integrated, and this light-shielding sheet is formed in a ring around a movable frame.
A light-blocking ring for an optical device is proposed, wherein the light-blocking ring is provided at a predetermined position where the moving frame and the device fixing portion and / or another frame body overlap.
【０００８】また、本発明の遮光リングは、上記遮光シ
−トを帯状に形成すると共に、その両端を斜めにカット
し、この遮光シ−トを移動枠外面に一回巻き回し両端の
カット部を固着して構成することができる。In the light-shielding ring according to the present invention, the light-shielding sheet is formed in a band shape, and both ends thereof are cut obliquely, and the light-shielding sheet is wound once around the outer surface of the moving frame to cut the both ends. Can be fixed.
【０００９】[0009]
【作用】この発明の遮光リングは、植毛紙が低弾性シ−
トの弾性によって適度な押圧を受けて移動枠外周面に接
合する。このことから、植毛紙の摺動性を充分に生かし
た遮光リングとなるため、移動枠に加わる負荷が軽減さ
れ、また、外光を確実に遮光することができる。According to the light shielding ring of the present invention, the flocked paper has a low elasticity seal.
And is joined to the outer peripheral surface of the movable frame by receiving an appropriate pressure by the elasticity of the movable frame. Thus, the light-shielding ring makes full use of the sliding properties of the flocking paper, so that the load applied to the moving frame is reduced, and external light can be reliably shielded.
【００１０】さらに、この遮光リングは低弾性シ−トが
ベ−ス材となっているので、植毛紙が劣化した場合で
も、低弾性シ−トの弾性作用を受けた植毛紙が確実に遮
光するので、耐久性の高い遮光リングとなる。Further, since the light-shielding ring is made of a low elastic sheet as a base material, even if the flocked paper is deteriorated, the flocked paper subjected to the elastic action of the low-elastic sheet reliably shields the light. Therefore, a highly durable light shielding ring is obtained.
【００１１】また、遮光シ−トを帯状に形成し、その両
端を斜めにカットしてリング形成する構成とすれば、シ
−ト端固着部に凹凸部が生じないため、遮光精度を高め
ることができる他、組込みに有利な遮光リングとなる。If the light-shielding sheet is formed in a band shape and both ends are cut obliquely to form a ring, no irregularities are formed in the sheet-end fixing portion, so that the light-shielding accuracy can be improved. In addition to this, a light-shielding ring that is advantageous for assembling is obtained.
【００１２】[0012]
【発明の実施の形態】次に、カメラのズ−ムレンズ鏡胴
の遮光リングとして実施した一実施形態について図面に
沿って説明する。図１は、ズ−ムレンズ鏡胴の断面図で
あり、上半部分がレンズ群Ｌ１、Ｌ２を後退させたＷＩ
ＤＥの動作状態を、下半部分がレンズ群Ｌ１、Ｌ２を進
出させたＴＥＬＥの動作状態を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment implemented as a light-shielding ring of a zoom lens barrel of a camera will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a zoom lens barrel, in which an upper half has a lens group L 1 , L 2 retracted WI.
The lower half shows the operating state of the TELE in which the lens groups L 1 and L 2 have advanced.
【００１３】このズ−ムレンズ鏡胴は、固定枠１１、第
１移動枠１２、第２移動枠１３の３層構成となってお
り、また、第２移動枠１３の先端部にねじ止めしたレン
ズ支持枠１４に前レンズ群Ｌ１を支持させ、第１移動枠
１２によってカム送りされるレンズ支持枠１５に後レン
ズ群Ｌ２を支持させた２群レンズ構成となっている。This zoom lens barrel has a three-layer structure of a fixed frame 11, a first moving frame 12, and a second moving frame 13, and a lens screwed to the tip of the second moving frame 13. to support the front lens group L 1 to the support frame 14 has a two-group lens structure obtained by supporting a rear lens group L 2 in the lens holding frame 15 is a cam feeding by the first moving frame 12.
【００１４】固定枠１１はカメラ本体に取付けて固定さ
れるもので、この固定枠１１は円筒状に形成し、その内
面にはヘリコイドねじ（雌）１１ａと光軸１６方向に直
線的に形成したキ−溝１１ｂとが形成してある。The fixed frame 11 is mounted and fixed to the camera body. The fixed frame 11 is formed in a cylindrical shape, and has a helicoid screw (female) 11a and a linearly formed in the direction of the optical axis 16 on the inner surface thereof. A key groove 11b is formed.
【００１５】第１移動枠１２はレンズ群Ｌ１、Ｌ２を共
に変位させる円筒状の移動枠で、この移動枠１２の後端
側外部にはヘリコイドねじ（雄）１２ａが設けてある。
このヘリコイドねじ１２ａは固定枠１１のヘリコイドね
じ１１ａに螺合してあり、第１移動枠１２がこれらヘリ
コイドねじ１１ａ、１２ａにしたがって光軸１６方向に
回動しながら移動する。The first moving frame 12 is a cylindrical moving frame for displacing both the lens units L 1 and L 2 , and a helicoid screw (male) 12 a is provided outside the rear end of the moving frame 12.
The helicoid screw 12a is screwed to the helicoid screw 11a of the fixed frame 11, and the first moving frame 12 moves while rotating in the direction of the optical axis 16 according to the helicoid screws 11a, 12a.
【００１６】上記ヘリコイドねじ１２ａを形成した移動
枠１２の後端側外周部にはヘリコイドねじと歯車部とが
形成してある。つまり、この後端側外周部には、ヘリコ
イドねじ１２ａのねじ山と、歯車の歯山とが共に形成し
てある。A helicoid screw and a gear portion are formed on the outer peripheral portion on the rear end side of the moving frame 12 on which the helicoid screw 12a is formed. That is, both the thread of the helicoid screw 12a and the tooth of the gear are formed on the rear end side outer peripheral portion.
【００１７】そして、上記の歯車部には固定枠１１の窓
孔１１ｃより連動歯車を噛合させ、この連動歯車と上記
の歯車部を介して第１移動枠１２をモ−タ駆動する構成
となっている。An interlocking gear is meshed with the gear section through a window hole 11c of the fixed frame 11, and the first moving frame 12 is motor-driven via the interlocking gear and the gear section. ing.
【００１８】また、第１移動枠１２の内周面には、ヘリ
コイドねじ（雌）１２ｂと共にカム溝１２ｃが設けてあ
る。このヘリコイドねじ１２ｂには、第２移動枠１３の
後側外周部に設けたヘリコイドねじ（雄）１３ａを螺合
させ、また、カム溝１２ｃにはレンズ支持枠１５のカム
フォロア１５ａを突入させてある。A cam groove 12c is provided on the inner peripheral surface of the first moving frame 12 together with the helicoid screw (female) 12b. A helicoid screw (male) 13a provided on the rear outer peripheral portion of the second moving frame 13 is screwed into the helicoid screw 12b, and a cam follower 15a of the lens support frame 15 projects into the cam groove 12c. .
【００１９】さらに、第１移動枠１２の後端にはガイド
板１７ａを備えた支持リング１７が嵌着してある。すな
わち、この支持リング１７はねじ止めなどによって挟持
リング１８に一体的に固定してあり、この挟持リング１
８の外周囲に沿った起立部１８ａと支持リング１７との
間に第１移動枠１２の後端フランジ１２ｄを回動自在に
嵌合させることにより、支持リング１７を第１移動枠１
２に取付けてある。Further, a support ring 17 having a guide plate 17a is fitted to the rear end of the first moving frame 12. That is, the support ring 17 is integrally fixed to the holding ring 18 by screwing or the like.
The support ring 17 is rotatably fitted to the rear end flange 12d of the first moving frame 12 between the upright portion 18a along the outer periphery of the supporting member 8 and the supporting ring 17.
It is attached to 2.
【００２０】また、支持リング１７にはその外周囲の一
部に突出させたキ−１７ｂが設けてあり、このキ−１７
ｂを固定枠１１のキ−溝１１ｂに突入させてある。つま
り、キ−１７ｂがキ−溝１１ｂによりガイドされるため
に、支持リング１７が非回動のまま第１移動枠１２と一
緒に光軸１６方向に移動する。The support ring 17 is provided with a key 17b protruding from a part of the outer periphery thereof.
b is inserted into the key groove 11b of the fixed frame 11. That is, since the key 17b is guided by the key groove 11b, the support ring 17 moves in the direction of the optical axis 16 together with the first moving frame 12 without rotating.
【００２１】したがって、支持リング１７に設けたガイ
ド板１７ａが旋回することなく第１移動枠１２と共に光
軸方向に移動する。ガイド板１７ａは細長形の板材であ
り、その先端側がシャッタユニット部１９に形成した細
長孔２０に出入自在となっている。なお、シャッタユニ
ット部１９は第２移動枠１３に備えられている。Therefore, the guide plate 17a provided on the support ring 17 moves in the optical axis direction together with the first moving frame 12 without turning. The guide plate 17 a is an elongated plate material, and the tip side thereof can freely enter and exit an elongated hole 20 formed in the shutter unit 19. Note that the shutter unit 19 is provided in the second moving frame 13.
【００２２】このガイド板１７ａは第２移動枠１３とレ
ンズ支持枠１５を非回動として光軸１６方向にガイドす
るものである。レンズ支持枠１５はその２股突部１５ｂ
の突部間をガイド板１７ａが通ることで非回動に保持さ
れ、また、第２移動枠１３が細長孔２０に突入したガイ
ド板１７ａによって非回動に保持される。The guide plate 17a guides the second moving frame 13 and the lens support frame 15 in the direction of the optical axis 16 without rotating. The lens support frame 15 has its bifurcated projection 15b.
When the guide plate 17a passes between the projections, the guide plate 17a is held non-rotatably, and the second moving frame 13 is held non-rotatably by the guide plate 17a protruding into the elongated hole 20.
【００２３】一方、このズ−ムレンズ鏡胴には、固定枠
１１と第１移動枠１２との間と第１移動枠１２と第２移
動枠１３との間に遮光リング２１、２２を備え、これら
の枠間からカメラ本体内に入射する外光を遮光するよう
になっている。その他、この図において、参照符号２
３、２４は第１移動枠１２と第２移動枠１３の補強枠、
２５は拡圧作用のコイルばねである。On the other hand, this zoom lens barrel is provided with light blocking rings 21 and 22 between the fixed frame 11 and the first moving frame 12 and between the first moving frame 12 and the second moving frame 13. External light entering the camera body from between these frames is shielded. In addition, in FIG.
3, 24 are reinforcement frames of the first moving frame 12 and the second moving frame 13,
Numeral 25 is a coil spring for pressure expansion.
【００２４】図２（Ａ）は遮光リング２１を形成する遮
光シ−トの正面図、図２（Ｂ）はその遮光シ−トの側面
図である。この遮光シ−トは、共に帯状に形成した植毛
紙２６と低弾性シ−ト２７とを重ね接着剤で一体的に固
着してある。そして、遮光シ−トの両端は斜めにカット
した接続部２８ａ、２８ｂとして形成してある。FIG. 2A is a front view of a light shielding sheet forming the light shielding ring 21, and FIG. 2B is a side view of the light shielding sheet. In this light-shielding sheet, a flocking sheet 26 and a low-elasticity sheet 27 both formed in a belt shape are overlapped and integrally fixed with an adhesive. Both ends of the light shielding sheet are formed as connection portions 28a and 28b which are cut obliquely.
【００２５】本実施形態では、ベ−スとなっている低弾
性シ−ト２７は、２５％圧縮荷重が０．１５〜０．２５
程度の合成樹脂材（発泡ポロン）で形成してあるが、そ
の他の同様の材質のものであっても使用することができ
る。In this embodiment, the base low elastic sheet 27 has a 25% compressive load of 0.15 to 0.25.
Although it is formed of a synthetic resin material (foam foam) of a certain degree, other similar materials can also be used.
【００２６】このように形成した遮光シ−トは、図３に
示したように、第１移動枠１２の外周面に一回巻回し、
その両端のカット部を合わせるようにして接着し、遮光
リング２１として形成する。The light shielding sheet thus formed is wound once around the outer peripheral surface of the first moving frame 12, as shown in FIG.
The cut portions at both ends are adhered to each other so as to be bonded, and formed as a light shielding ring 21.
【００２７】そして、この遮光リング２１は、固定枠１
１の先端内面に形成したリング溝１１ｄに嵌合し、カバ
−体２９によって抜け止めする構成とし、固定枠１１と
第１移動枠１２との間に配設してある。The light shielding ring 21 is fixed to the fixed frame 1.
1 is fitted into a ring groove 11d formed on the inner surface of the distal end and is prevented from falling off by a cover body 29, and is disposed between the fixed frame 11 and the first moving frame 12.
【００２８】なお、今一つの遮光リング２２は、上記し
た遮光リング２１と同様に構成してあり、遮光シ−トを
第２移動枠１３の外周面に巻回し、その両端部を接続固
着して遮光リングが形成されている。The other light-shielding ring 22 has the same structure as the above-described light-shielding ring 21. The light-shielding sheet is wound around the outer peripheral surface of the second moving frame 13, and both ends are connected and fixed. A light blocking ring is formed.
【００２９】そして、この遮光リング２２は、第１移動
枠１２の先端内部に形成したリング溝２１ｄ内に嵌合さ
せ、補強枠２３の先端部で抜け止めし、第１移動枠１２
と第２移動枠１３との間に配設してある。The light-shielding ring 22 is fitted into a ring groove 21d formed inside the distal end of the first moving frame 12, and is prevented from falling off at the distal end of the reinforcing frame 23.
And the second moving frame 13.
【００３０】上記のように設けた遮光リング２１、２２
は、植毛紙２６が移動枠に密接することから遮光性に優
れ、また、植毛紙２６は摺動性が高いので、移動枠に対
する摺動抵抗が少なく、この結果、移動枠に加わる負荷
が軽減される。The light shielding rings 21 and 22 provided as described above
Is excellent in light-shielding properties because the flocking paper 26 is in close contact with the moving frame, and because the flocking paper 26 has high slidability, the sliding resistance against the moving frame is small, and as a result, the load applied to the moving frame is reduced. Is done.
【００３１】さらに、植毛紙２６が経年使用により摩耗
などによって劣化しても、この植毛紙２６が低弾性シ−
ト２７により適度な押し圧力を受けて移動枠に圧接して
遮光するので、耐久性のよい遮光リングとなる。Further, even if the flocked paper 26 is deteriorated due to abrasion or the like due to aging, the flocked paper 26 has low elasticity.
The light receiving ring is pressed against the moving frame by receiving an appropriate pressing force from the light receiving member 27 to shield the light from the movable frame, so that a light-shielding ring having excellent durability can be obtained.
【００３２】上記のように構成したズ−ムレンズ鏡胴
は、第１移動枠１２が回動駆動されると、そのヘリコイ
ドねじ１２ａと固定枠１１のヘリコイドねじ１１ａとに
よって、この第１移動枠１２が回動しながら光軸１６方
向に移動する。When the first moving frame 12 is driven to rotate, the zoom lens barrel constructed as described above is rotated by the helicoid screw 12a and the helicoid screw 11a of the fixed frame 11 so that the first moving frame 12 is rotated. Moves in the direction of the optical axis 16 while rotating.
【００３３】したがって、ガイド板１７ａによって回転
止めされている第２移動枠１３がそのヘリコイドねじ１
３ａと第１移動枠１２のヘリコイドねじ１２ｂとによっ
て光軸１６方向に移動する。Therefore, the second moving frame 13 stopped by the guide plate 17a is rotated by the helicoid screw 1
3a and the helicoid screw 12b of the first moving frame 12 move in the optical axis 16 direction.
【００３４】また、ガイド板１７ａによって回転止めさ
れているレンズ支持枠１５のカムフォロア１５ａが第１
移動枠１２のカム溝１２ｃによって駆動されるため、レ
ンズ支持枠１５が光軸１６方向に移動する。The cam follower 15a of the lens support frame 15 which is stopped by the guide plate 17a is
Since the lens supporting frame 15 is driven by the cam groove 12c of the moving frame 12, the lens supporting frame 15 moves in the optical axis 16 direction.
【００３５】このように第１移動枠１２、第２移動枠１
３、レンズ支持枠１５が移動することで、レンズ群
Ｌ１、Ｌ２が変位しズ−ミングが行なわれる。As described above, the first moving frame 12 and the second moving frame 1
3. When the lens support frame 15 moves, the lens groups L 1 and L 2 are displaced, and zooming is performed.
【００３６】以上、ズ−ムレンズ鏡胴に備えた遮光リン
グの実施形態について説明したが、光学系を支持する移
動枠を備えたその他の光学装置についても同様に実施す
ることができる。The embodiment of the light-blocking ring provided on the zoom lens barrel has been described above. However, the present invention can be similarly applied to other optical devices having a movable frame for supporting the optical system.
【００３７】[0037]
【発明の効果】上記した通り、本発明の遮光リングは、
植毛紙と低弾性シ−トとを重合させるように一体化して
構成したので、移動枠に接合する植毛紙の摺動作用によ
って移動枠に加わる負荷を減少させることができ、ま
た、植毛紙が移動枠に接合するから、外光の入射を確実
に遮光する上、低弾性シ−トがベ−スとなっているの
で、耐久性のある遮光リングとなる。As described above, the light-shielding ring of the present invention
Since the flocked paper and the low elasticity sheet are integrally formed so as to be polymerized, the load applied to the moving frame can be reduced by the sliding action of the flocked paper joined to the moving frame. Since it is joined to the moving frame, it can reliably block external light from entering, and since the base is made of a low elasticity sheet, a durable light shielding ring can be obtained.
【図１】本発明を実施したズ−ムレンズ鏡胴の断面図で
ある。FIG. 1 is a sectional view of a zoom lens barrel embodying the present invention.
【図２】図２（Ａ）は遮光リングを形成する遮光シ−ト
の正面図、図２（Ｂ）はその遮光シ−トの側面図であ
る。FIG. 2A is a front view of a light shielding sheet forming a light shielding ring, and FIG. 2B is a side view of the light shielding sheet.
【図３】遮光シ−トの接続部を示した鏡胴一部の拡大断
面図である。FIG. 3 is an enlarged sectional view of a part of a lens barrel showing a connection portion of a light shielding sheet.
１１ 固定枠 １２ 第１移動枠 １３ 第２移動枠 １７ａ ガイド板 ２１ 遮光リング ２２ 遮光リング ２６ 植毛紙 ２７ 低弾性シ−ト Reference Signs List 11 fixed frame 12 first moving frame 13 second moving frame 17a guide plate 21 light blocking ring 22 light blocking ring 26 flocking paper 27 low elastic sheet
Claims (2)
及び／または他の枠体との間から入射する光を遮光する
ための光学装置用遮光リングにおいて、植毛紙と低弾性
シ−トとを重ねて一体化した２層構造の遮光シ−トを設
け、この遮光シ−トを移動枠周囲にリング形成し、上記
移動枠と装置固定部及び／または他の枠体が重なる所定
部所に配設して構成したことを特徴とする光学装置用遮
光リング。An optical device light-shielding ring for blocking light incident from between a moving frame supporting an optical system and a device fixing portion and / or another frame body, wherein a flocked paper and a low elasticity sheath are provided. A light-shielding sheet having a two-layer structure in which the light-shielding sheet is integrally formed by overlapping the light-shielding sheet, a ring is formed around the moving frame, and a predetermined area where the moving frame overlaps with the device fixing portion and / or another frame body. A light-shielding ring for an optical device, wherein the light-shielding ring is disposed at a location.
に、その両端を斜めにカットし、この遮光シ−トを移動
枠外面に一回巻き回し両端のカット部を固着して構成し
たことを特徴とする請求項１に記載した光学装置用遮光
リング。2. The light-shielding sheet is formed in a belt shape, and both ends thereof are cut obliquely, and the light-shielding sheet is wound once around the outer surface of a moving frame, and the cut portions at both ends are fixed. The light-shielding ring for an optical device according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27571399A JP2001100073A (en) | 1999-09-29 | 1999-09-29 | Light shield ring for optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27571399A JP2001100073A (en) | 1999-09-29 | 1999-09-29 | Light shield ring for optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001100073A true JP2001100073A (en) | 2001-04-13 |
Family
ID=17559346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27571399A Pending JP2001100073A (en) | 1999-09-29 | 1999-09-29 | Light shield ring for optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001100073A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021776A (en) * | 2001-07-10 | 2003-01-24 | Olympus Optical Co Ltd | Zoom lens frame and zoom camera |
| JP2008203773A (en) * | 2007-02-22 | 2008-09-04 | Hoya Corp | Drip-proof structure for lens barrel |
| JP2014092644A (en) * | 2012-11-02 | 2014-05-19 | Ricoh Imaging Co Ltd | Drip-proof structure of lens barrel |
-
1999
- 1999-09-29 JP JP27571399A patent/JP2001100073A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021776A (en) * | 2001-07-10 | 2003-01-24 | Olympus Optical Co Ltd | Zoom lens frame and zoom camera |
| JP2008203773A (en) * | 2007-02-22 | 2008-09-04 | Hoya Corp | Drip-proof structure for lens barrel |
| JP2014092644A (en) * | 2012-11-02 | 2014-05-19 | Ricoh Imaging Co Ltd | Drip-proof structure of lens barrel |
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