JPH0360095B2 - - Google Patents
Info
- Publication number
- JPH0360095B2 JPH0360095B2 JP57219552A JP21955282A JPH0360095B2 JP H0360095 B2 JPH0360095 B2 JP H0360095B2 JP 57219552 A JP57219552 A JP 57219552A JP 21955282 A JP21955282 A JP 21955282A JP H0360095 B2 JPH0360095 B2 JP H0360095B2
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- lens
- barrel
- focus adjustment
- motor
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、写真用カメラやテレビカメラ等に使
用される光学レンズにおいて、焦点調節のために
必要なレンズの移動を行うレンズ移動装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lens moving device for moving a lens necessary for focus adjustment in an optical lens used in a photographic camera, a television camera, etc. .
従来例の構成とその問題点
従来より実用化されている写真用カメラ、テレ
ビカメラ等の光学レンズにあつては、焦点を調節
するために、レンズの繰り出しを制御できるレン
ズ鏡筒の外周部に設けられた数条のネジを含むヘ
リコイド構成を、光学レンズ基体との結合構成と
して備えていることが、きわめて一般的である。
これは、非常に高い精度が要求される複雑な機械
構成となつていた。Conventional configurations and their problems In the optical lenses of photographic cameras, television cameras, etc. that have been in practical use, in order to adjust the focus, there is a It is very common to provide a helicoidal arrangement, including several threads, as a coupling arrangement with the optical lens body.
This was a complex mechanical configuration that required extremely high precision.
また、言うまでもなく、上述したような可動構
成は、光学レンズ自体が円形であることから、必
然的に円筒形状の鏡筒を加工することによつて得
られている。 Needless to say, the above-described movable structure is necessarily obtained by machining a cylindrical lens barrel since the optical lens itself is circular.
このため、従来は、焦点調節をするための構成
の形成に条数の多い高精度のネジ溝を必要とする
ことから、専用の特殊工作機械を必要とし、加え
て相当の加工時間を要していた。 For this reason, conventionally, forming a structure for focus adjustment required a high-precision thread groove with a large number of threads, which required a dedicated special machine tool and required a considerable amount of machining time. was.
したがつて、従来のレンズ移動装置は、焦点調
節構成部分の部品単価が非常に高くなり、また量
産性もきわめて悪く、結果として光学レンズの値
段が非常に高価になつてしまうという問題点を有
していた。 Therefore, conventional lens moving devices have problems in that the unit cost of the focus adjustment components is extremely high, mass production is extremely poor, and as a result, the price of the optical lens becomes extremely expensive. Was.
さらに、近年特に実用化の進められている自動
焦点システムとの関連においても、従来のレンズ
移動装置は、ヘリコイド構成であるため、レンズ
の移動に必要とする駆動トルクが大きく、自動的
なレンズ移動、すなわち焦点調節を行うための駆
動源が大きくなつてしまうという問題点や、ある
いは、移動装置が円筒形状であるため、レンズ移
動量の制御のために必要なレンズの移動検出構成
の設置がきわめて困難な構成となるという問題点
を有していた。 Furthermore, in connection with automatic focusing systems, which have been put into practical use in recent years, conventional lens moving devices have a helicoid configuration, which requires a large drive torque to move the lens, and automatic lens movement is difficult to achieve. In other words, there is the problem that the driving source for performing focus adjustment becomes large, or because the moving device is cylindrical, it is extremely difficult to install a lens movement detection structure necessary to control the amount of lens movement. This has the problem of a difficult configuration.
発明の目的
本発明の目的は、従来の光学レンズがヘリコイ
ド構成によつてレンズを移動させているために有
する部品単価の高価格化、量産性の悪化という問
題点を解決できるとともに、レンズの移動に必要
な駆動トルクが小さく、かつ、レンズの移動検出
構成がきわめて簡単に設置できる、特に自動焦点
システムとの組み合わせにおいて効果の大きいレ
ンズ移動装置を提供することである。Purpose of the Invention It is an object of the present invention to solve the problems of high unit cost of parts and deterioration of mass production, which are caused by the helicoid structure of conventional optical lenses in which the lens is moved. It is an object of the present invention to provide a lens moving device that requires a small driving torque, has a lens movement detection configuration that can be installed extremely easily, and is particularly effective in combination with an automatic focusing system.
発明の構成
本発明による光学レンズの移動装置は、焦点調
節を行う、レンズを保持するレンズ鏡筒と、レン
ズ鏡筒をその光軸方向への移動が可能な状態で収
容する中空部を備えた基礎鏡筒と、基礎鏡筒の内
周面に設けられてレンズ鏡筒外周面と当接し、レ
ンズ鏡筒の移動を制御するベアリングと、基礎鏡
筒に設けられた光軸に沿つた長溝と、長溝を介し
てレンズ鏡筒に固着される突出ピンと、突出ピン
が嵌挿されるカム溝を有するとともに、基礎鏡筒
を覆い、回転可能に装着される円弧状焦点調節板
と、所定のエネルギーの供給制御により正逆回転
するモータと、モータと円弧状焦点調節板との間
に設けられ、モータの駆動力を円弧状焦点調節板
に伝達する伝達手段と、導体パターンを備え、円
弧状焦点調節板に設けられる位置検出器と、基礎
鏡筒等の固定部分に固着され、位置検出器の導体
パターンと接触することにより、円弧状焦点調節
板の位置を検出する接片とを備えている。Configuration of the Invention An optical lens moving device according to the present invention includes a lens barrel that performs focus adjustment and holds a lens, and a hollow portion that accommodates the lens barrel in a state where it can be moved in the direction of its optical axis. A basic lens barrel, a bearing provided on the inner peripheral surface of the basic lens barrel and in contact with the outer peripheral surface of the lens barrel to control movement of the lens barrel, and a long groove along the optical axis provided in the basic lens barrel. , has a protruding pin fixed to the lens barrel via a long groove, a cam groove into which the protruding pin is inserted, an arc-shaped focusing plate that covers the basic lens barrel and is rotatably mounted, and A motor that rotates forward and backward under supply control, a transmission means that is provided between the motor and the arc-shaped focus adjustment plate and transmits the driving force of the motor to the arc-shaped focus adjustment plate, and a conductor pattern. It includes a position detector provided on the plate, and a contact piece that is fixed to a fixed part such as a base lens barrel and detects the position of the arc-shaped focusing plate by coming into contact with the conductive pattern of the position detector.
実施例の説明
第１図は、光学レンズの一部分を構成し、焦点
調節を行う本発明によるレンズ移動装置の一実施
例を示す分解斜視図である。DESCRIPTION OF EMBODIMENTS FIG. 1 is an exploded perspective view showing an embodiment of a lens moving device according to the present invention, which constitutes a part of an optical lens and performs focus adjustment.
図において、１は入射する被写体からの光を焦
点面（図示せず）に結像するレンズ、２はレンズ
１を保持するレンズ鏡筒、３はたとえばネジ構成
によつてレンズ鏡筒２に固着される突出ピン、４
はレンズ鏡筒２が収容される基礎鏡筒、５は基礎
鏡筒４に設けられ、ベアリング６を保持するベア
リング保持部、７は基礎鏡筒４に設けられ、前述
の突出ピン３が貫通せしめられる長溝である。８
は、前述の突出ピン３が嵌挿せしめられるカム溝
９、後述するモータ１１の駆動力が伝達される鋸
歯状部１０を備えた円弧状焦点調節板である。 In the figure, 1 is a lens that forms an image of incident light from an object on a focal plane (not shown), 2 is a lens barrel that holds the lens 1, and 3 is fixed to the lens barrel 2 by, for example, a screw configuration. protruding pin, 4
Reference numeral 5 indicates a base barrel in which the lens barrel 2 is housed, 5 is a bearing holding portion provided on the base barrel 4 and holds a bearing 6, and 7 is provided on the base barrel 4 through which the above-mentioned protruding pin 3 passes. It is a long groove. 8
1 is an arcuate focusing plate having a cam groove 9 into which the above-mentioned protruding pin 3 is fitted, and a serrated portion 10 to which the driving force of a motor 11 (to be described later) is transmitted.
モータ１１は所定エネルギーの供給制御により
正逆回転する駆動源であり、本実施例ではこのモ
ータ１１の駆動力はギヤ１２、鋸歯状部１０を介
して円弧状焦点調節板８に伝達される。すなわ
ち、上記鋸歯状部１０とギヤ１２とは、円弧状焦
点調節板８とモータ１１との間に設けられたモー
タ１１の駆動力の伝達手段を形成している。 The motor 11 is a drive source that rotates in forward and reverse directions under the supply control of a predetermined energy. In this embodiment, the driving force of the motor 11 is transmitted to the arc-shaped focusing plate 8 via the gear 12 and the serrated portion 10. That is, the sawtooth portion 10 and the gear 12 form a means for transmitting the driving force of the motor 11 provided between the arc-shaped focusing plate 8 and the motor 11.
１３は位置検出器で、図面に現われていない面
に導体パターン１３ａを備えているとともに、上
記円弧状焦点調節板８の裏面に装着されている。
１４は前述した基礎鏡筒４にネジ穴１４ａ、ネジ
１５を介して固着される接片であり、上記導体パ
ターン１３ａと接触することにより上記円弧状焦
点調節板８の回転状態、すなわち現在位置を検出
するものである。換言すれば、上記位置検出器１
３と接片１４とは、円弧状焦点調節板８と基礎鏡
筒４間に設けられた上記円弧状焦点調節板８の位
置検出手段を形成している。 Reference numeral 13 denotes a position detector, which has a conductive pattern 13a on a surface not shown in the drawing, and is attached to the back surface of the arc-shaped focusing plate 8.
A contact piece 14 is fixed to the basic lens barrel 4 through a screw hole 14a and a screw 15, and by contacting the conductive pattern 13a, the rotation state of the arc-shaped focusing plate 8, that is, the current position can be determined. It is something to detect. In other words, the position detector 1
3 and the contact piece 14 form a position detecting means for the arcuate focus adjustment plate 8 provided between the arcuate focus adjustment plate 8 and the basic lens barrel 4.
以下、上述のような構成からなる本実施例の作
用について述べるが、その前にレンズ鏡筒２自体
等の加工について述べる。 The operation of this embodiment having the above-mentioned configuration will be described below, but before that, the processing of the lens barrel 2 itself, etc. will be described.
まず、レンズ鏡筒２であるが、これは従来と同
様に金属もしくは樹脂にて形成される。 First, the lens barrel 2 is made of metal or resin as in the conventional case.
また、基礎鏡筒４は、たとえばアルミダイキヤ
スト法やあるいは射出成形法のような、量産効果
の高い方法によつて適宜の金属、樹脂材から大ま
かな形状に形成され、次いで収容されるレンズ鏡
筒２との間で軸ずれが生じないよう、すなわちレ
ンズ鏡筒２がベアリング６を介して高精度に収容
されるよう中ぐり加工が施されることにより、作
製される。 The basic lens barrel 4 is formed into a rough shape from an appropriate metal or resin material by a method that is highly effective in mass production, such as aluminum die casting or injection molding, and is then housed as a lens mirror. It is manufactured by performing a boring process so that no axis misalignment occurs between the lens barrel 2 and the barrel 2, that is, so that the lens barrel 2 is accommodated with high precision via the bearing 6.
最後に、焦点調節板８であるが、これは、たと
えば平板状の金属板にカム溝をプレス金型あるい
はワイヤーカツト等の方法によつて打ち抜き、そ
の後プレス加工によつて図示したような所望の形
状に成形することによつて、完成される。 Finally, the focus adjustment plate 8 is made by punching out cam grooves in a flat metal plate using a press die or wire cutting method, and then press-working the desired shape as shown in the figure. It is completed by molding it into a shape.
上記のようにして製造されたレンズ鏡筒２等を
組み合わせることにより、本実施例のレンズ移動
装置が構成される。具体的に述べると、まずレン
ズ鏡筒２を基礎鏡筒４内に嵌挿させ、その後、突
出ピン３を基礎鏡筒４の長溝７を介してレンズ鏡
筒２に固着させ、さらに上記突出ピン３が長溝
７、カム溝９の所定位置に位置するよう焦点調節
板８を装着することによつて完成させられる。 By combining the lens barrel 2 and the like manufactured as described above, the lens moving device of this embodiment is constructed. Specifically, first the lens barrel 2 is fitted into the base barrel 4, then the protruding pin 3 is fixed to the lens barrel 2 via the long groove 7 of the base barrel 4, and then the protruding pin 3 is located at a predetermined position of the long groove 7 and the cam groove 9, and the focusing plate 8 is attached to complete the process.
さて、上述のようにして完成された本実施例の
レンズ移動装置における焦点調節板であるが、測
距装置（図示せず９からの信号にもとづいてモー
タ１１に所定エネルギーを供給してそれを回転さ
せ、その駆動力を円弧状焦点調節板８に伝達し
て、この円弧状焦点調節板８を基礎鏡筒４の円周
方向である矢印Ａ方向へ回転させる。 Now, the focus adjusting plate in the lens moving device of this embodiment completed as described above supplies a predetermined energy to the motor 11 based on the signal from the distance measuring device (not shown) 9. The driving force is transmitted to the arc-shaped focusing plate 8, and the arc-shaped focusing plate 8 is rotated in the direction of arrow A, which is the circumferential direction of the basic lens barrel 4.
円弧状焦点調節板８が回転すると、カム溝９に
嵌挿されている突出ピン３に、上記回転時の回転
力によつて矢印Ｂ方向の力が供給されることにな
る。 When the arcuate focusing plate 8 rotates, a force in the direction of arrow B is applied to the protruding pin 3 fitted into the cam groove 9 due to the rotational force during the rotation.
突出ピン３が、基礎鏡筒４の光軸に沿つた長溝
７を貫通するとともに、レンズ鏡筒２に固着され
ることは先に述べたとおりであり、上述したよう
な矢印Ｂ方向への力の供給により、それは長溝７
内を矢印Ｂ方向へ摺動することになる。 As mentioned above, the protruding pin 3 passes through the long groove 7 along the optical axis of the basic lens barrel 4 and is fixed to the lens barrel 2, and the force in the direction of the arrow B as described above is applied to the protruding pin 3. By supplying it with long groove 7
It will slide inside in the direction of arrow B.
突出ピン３が長溝７内を矢印Ｂ方向へ摺動する
ということは、レンズ鏡筒２が矢印Ｂ方向へ移動
することであることはいうまでもなく、この結
果、焦点面（図示せず）とレンズ１との距離が可
変され、いわゆる焦点調節がなされることにな
る。 It goes without saying that the protruding pin 3 sliding in the long groove 7 in the direction of arrow B means that the lens barrel 2 moves in the direction of arrow B, and as a result, the focal plane (not shown) The distance between the lens 1 and the lens 1 is varied, and so-called focus adjustment is performed.
このとき、本実施例のレンズ移動装置において
は、レンズ鏡筒２がベアリング６を介して基礎鏡
筒４内に保持されているため、上述した移動動作
はきわめてスムーズになされるとともに、モータ
１３による駆動特性もきわめて優れた、すなわち
必要な駆動トルクが小さくなるため、移動開始、
移動停止がきわめて正確に行えることになる。 At this time, in the lens moving device of this embodiment, since the lens barrel 2 is held within the base barrel 4 via the bearing 6, the above-mentioned moving operation is performed extremely smoothly, and the motor 13 The drive characteristics are also extremely good, which means that the required drive torque is small, making it easy to start moving,
Movement and stopping can be performed extremely accurately.
また、レンズ鏡筒２の移動量は、モータ１１の
回転制御により円弧状焦点調節板８の回転動作を
制御することにより適宜制御できることはいうま
でもない。 It goes without saying that the amount of movement of the lens barrel 2 can be appropriately controlled by controlling the rotation of the arc-shaped focusing plate 8 by controlling the rotation of the motor 11.
なお、モータ１１、接片１４の固定は基礎鏡筒
４以外の固定部分においても適宜実現できること
は明らかである。 Note that it is clear that the motor 11 and the contact piece 14 can be appropriately fixed at a fixed part other than the basic lens barrel 4.
発明の効果
本発明によるレンズ移動装置によれば、カム溝
と突出ピンとにより回転運動を直線運動に変換
し、かつ、レンズ鏡筒を基礎鏡筒に対してベアリ
ングを介して収容しているため、きわめて高い精
度の加工を必要とするヘリコイド構成とする必要
がなくなり、またカム溝を使用するために、カム
溝を有する部材を円筒形状ではなく、円弧状に形
成することができるから、プレス加工を中心とし
た量産性のある加工によつて成型できることにな
り、部品単価が安くなり、また、レンズ鏡筒の駆
動トルクをきわめて小さくすることができる。し
たがつて、光学レンズ装置としての価格を安価に
できるとともに、駆動源であるモータを小型化で
き、また位置検出器等の位置検出手段の設置作業
もきわめて簡単となる。Effects of the Invention According to the lens moving device according to the present invention, rotational motion is converted into linear motion by the cam groove and the protruding pin, and the lens barrel is housed in the base barrel via a bearing, so that There is no longer a need for a helicoid configuration that requires extremely high precision machining, and since the cam groove is used, the member with the cam groove can be formed into an arc shape rather than a cylindrical shape, making it possible to reduce the need for press machining. This means that the molding can be carried out through a process that is centrally suited for mass production, which reduces the unit cost of parts and makes it possible to extremely reduce the driving torque of the lens barrel. Therefore, the price of the optical lens device can be reduced, the motor serving as the drive source can be downsized, and the installation work of position detection means such as a position detector can be extremely simple.
第１図は本発明によるレンズ移動装置の一実施
例の分解斜視図である。
２……レンズ鏡筒、３……突出ピン、４……基
礎鏡筒、６……ベアリング、７……長溝、８……
焦点調節板、９……カム溝、１０……鋸歯状部、
１１……モータ、１２……ギヤ、１３……位置検
出器、１３ａ……導体パターン、１４……接片、
１５……ネジ。
FIG. 1 is an exploded perspective view of an embodiment of a lens moving device according to the present invention. 2... Lens barrel, 3... Protruding pin, 4... Basic lens barrel, 6... Bearing, 7... Long groove, 8...
Focus adjustment plate, 9... cam groove, 10... serration,
11... Motor, 12... Gear, 13... Position detector, 13a... Conductor pattern, 14... Contact piece,
15...screw.
Claims (1)
筒と、前記レンズ鏡筒をその光軸方向への移動が
可能な状態で収容する中空部を備えた基礎鏡筒
と、前記基礎鏡筒の内周面に設けられて前記レン
ズ鏡筒外周面と当接し、前記レンズ鏡筒の移動を
制御するベアリングと、前記基礎鏡筒に設けられ
た前記光軸に沿つた長溝と、前記長溝を介して前
記レンズ鏡筒に固着される突出ピンと、前記突出
ピンが嵌挿されるカム溝を有するとともに、前記
基礎鏡筒を覆い、回転可能に装着される円弧状焦
点調節板と、所定エネルギーの供給制御により正
逆回転するモータと、前記モータと前記円弧状焦
点調節板との間に設けられ、前記モータの駆動力
を前記円弧状焦点調節板に伝達する伝達手段と、
導体パターンを備え、前記円弧状焦点調節板に設
けられる位置検出器と、前記基礎鏡筒等の固定部
分に固着され、前記位置検出器の前記導体パター
ンと接触することにより、前記円弧状焦点調節板
の位置を検出する接片とを備えているレンズ移動
装置。1. A lens barrel that performs focus adjustment and holds a lens, a base barrel that accommodates the lens barrel so as to be movable in the direction of its optical axis, and an inner part of the base barrel. a bearing provided on a peripheral surface and in contact with the outer peripheral surface of the lens barrel to control movement of the lens barrel; a long groove provided in the base barrel along the optical axis; It has a protruding pin fixed to the lens barrel, a cam groove into which the protruding pin is inserted, an arc-shaped focusing plate that covers the basic lens barrel and is rotatably mounted, and a predetermined energy supply control. a motor that rotates in forward and reverse directions; a transmission means that is provided between the motor and the arcuate focus adjustment plate and transmits the driving force of the motor to the arcuate focus adjustment plate;
A position detector is provided on the arc-shaped focus adjustment plate, and is fixed to a fixed part such as the basic lens barrel, and is fixed to the conductor pattern of the position detector to adjust the arc-shaped focus. A lens moving device comprising a contact piece for detecting the position of the plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21955282A JPS59109005A (en) | 1982-12-14 | 1982-12-14 | Lens moving device |
| US06/560,993 US4585313A (en) | 1982-12-14 | 1983-12-13 | Lens drive device and optical lens assembly utilizing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21955282A JPS59109005A (en) | 1982-12-14 | 1982-12-14 | Lens moving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59109005A JPS59109005A (en) | 1984-06-23 |
| JPH0360095B2 true JPH0360095B2 (en) | 1991-09-12 |
Family
ID=16737288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21955282A Granted JPS59109005A (en) | 1982-12-14 | 1982-12-14 | Lens moving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59109005A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL75213A (en) * | 1985-05-16 | 1988-11-15 | Elbit Computers Ltd | Split-image optical viewing instrument |
| JPS6370521U (en) * | 1986-10-27 | 1988-05-12 | ||
| TWI274928B (en) * | 2003-09-22 | 2007-03-01 | Alps Electric Co Ltd | Focal point adjustment device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS513628A (en) * | 1974-06-28 | 1976-01-13 | Canon Kk | BOENRENZUKYOTAI |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115943U (en) * | 1978-02-02 | 1979-08-14 |
-
1982
- 1982-12-14 JP JP21955282A patent/JPS59109005A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS513628A (en) * | 1974-06-28 | 1976-01-13 | Canon Kk | BOENRENZUKYOTAI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59109005A (en) | 1984-06-23 |
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