JPH04207358A - Mount lens mounting device - Google Patents

Mount lens mounting device

Info

Publication number
JPH04207358A
JPH04207358A JP2328882A JP32888290A JPH04207358A JP H04207358 A JPH04207358 A JP H04207358A JP 2328882 A JP2328882 A JP 2328882A JP 32888290 A JP32888290 A JP 32888290A JP H04207358 A JPH04207358 A JP H04207358A
Authority
JP
Japan
Prior art keywords
mount
lens
lenses
conversion ring
mount lens
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
Application number
JP2328882A
Other languages
Japanese (ja)
Inventor
Takeo Hiraishi
平石　武夫
Isao Narita
成田　勇郎
Yoshinobu Isogai
磯貝　嘉伸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Image Information Systems Inc
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Video Engineering Co Ltd
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 by Hitachi Ltd, Hitachi Video Engineering Co Ltd filed Critical Hitachi Ltd
Priority to JP2328882A priority Critical patent/JPH04207358A/en
Publication of JPH04207358A publication Critical patent/JPH04207358A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To facilitate the rapid dealing with a C mount lens and a CS mount lens by turning over a conversion ring. CONSTITUTION:The lenses to be mounted to a camera for monitor include the lenses of a C mount 1 and a CS mount 2. The respective mount lenses 1, 2 vary in focal lengths A, B. A conversion mechanism 5 for correcting the focal length is used in the case of use with one unit of the camera. The conversion ring 5 is provided with level differences varying in diameter and consists of the diameter smaller than the hole diameter of a front cover 3 and a threaded part which can be mounted to the collar 4. The focal length is corrected by the thickness of the level difference. The rapid dealing with the lens to be mounted is executed in this way by using the conversion ring 5 for both the C mount lens 1 and the CS mount lens 2.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は監視カメラにおけるレンズマウント用変換リン
グ及びその固定方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conversion ring for a lens mount in a surveillance camera and a method for fixing the same.

［従来の技術］ 従来の装置は、特開平２−１１１１７５号公報に記載の
ように、テレビカメラのレンズマウント切換機構を、切
換調整リングの回転により、撮像素子の移動させ、フラ
ンジバック距離の異なるレンズに対応するとなっていた
。[Prior Art] As described in Japanese Unexamined Patent Publication No. 2-111175, a conventional device uses a lens mount switching mechanism of a television camera to move an image pickup element by rotating a switching adjustment ring, and adjusts the flange back distance to a different value. It was supposed to be compatible with lenses.

［発明が解決しようとする課題］ 上記従来技術は、レンズマウント変換機構を用い回転す
ることにより撮像素子を移動させるもので、　＊＊上複
雑であり、コスト面においても不理であった。[Problems to be Solved by the Invention] The above conventional technology uses a lens mount conversion mechanism to move the image sensor by rotating it, which is complicated and unreasonable in terms of cost.

本発明はマウントレンズ用変換リングの取付方向によっ
て変換すべくもので、随時使用することを目的とし、さ
らにマウントすべきレンズに早対応できることを提供す
ることを目的とする。The present invention is designed to change the mounting direction of a mount lens conversion ring, and is intended to be used at any time.It is also an object of the present invention to provide quick adaptation to lenses to be mounted.

［課題を解決するための手段］ 上記目的を達成するために、変換リングを反転すること
により、Ｃマウントレンズ及びＯＳマウントレンズの対
応を可能としたものである。[Means for Solving the Problems] In order to achieve the above object, the conversion ring is inverted to make it compatible with C-mount lenses and OS-mount lenses.

［作用］ レンズ変換リングは、Ｃマウントレンズ使用時ＯＳマウ
ントレンズ使用時とともに使用する。それによって、変
換リングは、常に使用しているため、保管による紛失の
恐れがなくなる。[Function] The lens conversion ring is used both when using a C mount lens and when using an OS mount lens. Thereby, since the conversion ring is always used, there is no fear of loss due to storage.

［実施例コ 監視用カメラのマウントすへくレンズに、Ｃマウント及
びＯＳマウントのレンズがあり、各マウントレンズは焦
点距離が異なる。これを１台のカメラで使用する場合、
焦点距離補正用の変換機構な用いている。[Example 1] There are C mount and OS mount lenses as mount lenses for a surveillance camera, and each mount lens has a different focal length. When using this with one camera,
A conversion mechanism for focal length correction is used.

本発明の実施例を、第１図より説明する。An embodiment of the present invention will be explained with reference to FIG.

変換リング５は、径の異なる段差を設けてあり、フロン
トカバー３の穴径より小さい径と、カラー４に取付けで
きるネジ部により成り、段差の厚みにより、焦点距離の
補正を行なうものである。The conversion ring 5 has steps with different diameters, each having a smaller diameter than the hole diameter of the front cover 3 and a threaded portion that can be attached to the collar 4, and corrects the focal length depending on the thickness of the steps.

焦点距離の長いＣ２マウントレンズ１を使用する場合、
カメラ本体側へネジ部を先に取付けて使用する。When using C2 mount lens 1 with a long focal length,
Attach the screw part to the camera body side first.

第２図は焦点距離の短かいＣＳマウントレンズ２を使用
する場合で、変換リング５の段差の低し１方をまずカメ
ラ本体側に挿入し、カラー４のネジ穴を素通りの後、ネ
ジ部にて取付くことにより、焦点距離の補正対応をして
いる。Figure 2 shows a case where a CS mount lens 2 with a short focal length is used. First insert the lower end of the conversion ring 5 into the camera body side, pass through the screw hole of the collar 4, and then By attaching it to the lens, it is possible to correct the focal length.

また、カラー４と変換リング５のねじの回動位置により
、レンズの焦点合わせを調整すること力１でき、止めネ
ジ８にてその固定を行なうものである（第３図）。Further, the focusing of the lens can be adjusted by adjusting the rotational positions of the screws of the collar 4 and the conversion ring 5, and is fixed by a set screw 8 (FIG. 3).

［発明の効果コ 本発明によ２ｔば、Ｃマウンｆ−１，ンズ及び、ＣＳマ
ウントレンズともにこの変換リングを使用することによ
って、マウンドすべくレンズに速対応することができる
。[Effects of the Invention] According to the present invention, by using this conversion ring for both the C-mount f-1 lens and the CS-mount lens, it is possible to quickly adapt the lens to be mounted.

また、変換リングを常時使用しでいるので、保管による
紛失を防止することができる。Additionally, since the conversion ring is always in use, it can be prevented from being lost during storage.

その上、機構上変換リングの付換えのみでＣマウントレ
ンズ及びＣＳマウントレンズに対応することができ、コ
ストの面で有利である。Furthermore, it is possible to correspond to C-mount lenses and CS-mount lenses by simply replacing the conversion ring, which is advantageous in terms of cost.

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

第１図は本発明の実施例てＣＳマウントレンズ対応を示
す断面図、第２図はＣマウントレンズ対応な示す断面図
、第３図は背面図である。 符号の説明 １　・Ｃマウントレンズ、 ２・ＣＳマウントレンズ、 ３・　フロントカバー、 ４　カラー・、 ５・変換リング、 ６・・センサー。 ７・・・ホルダ、 Ａ・・・Ｃマウントレンズの焦点距離、Ｂ・・ＣＳマウ
ントレンズの焦点距離、８・・・Ｂ／Ｆ用止めネジ。 あ 」２図FIG. 1 is a sectional view showing an embodiment of the present invention compatible with a CS mount lens, FIG. 2 is a sectional view showing an example compatible with a C mount lens, and FIG. 3 is a rear view. Explanation of symbols 1. C mount lens, 2. CS mount lens, 3. Front cover, 4. Color, 5. Conversion ring, 6. Sensor. 7... Holder, A... Focal length of C mount lens, B... Focal length of CS mount lens, 8... Set screw for B/F. A''2 figure

Claims (1)

【特許請求の範囲】[Claims] １、フロントカバーとカラーと変換リングから成る監視
カメラにおいて、第１マウントレンズと第２マウントレ
ンズの変換を、変換リングの取付向きによって対応する
ことを特徴とするマウントレンズ取付装置。1. A mount lens mounting device for a surveillance camera comprising a front cover, a collar, and a conversion ring, characterized in that the first mount lens and the second mount lens are converted depending on the mounting direction of the conversion ring.
JP2328882A 1990-11-30 1990-11-30 Mount lens mounting device Pending JPH04207358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2328882A JPH04207358A (en) 1990-11-30 1990-11-30 Mount lens mounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2328882A JPH04207358A (en) 1990-11-30 1990-11-30 Mount lens mounting device

Publications (1)

Publication Number Publication Date
JPH04207358A true JPH04207358A (en) 1992-07-29

Family

ID=18215152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2328882A Pending JPH04207358A (en) 1990-11-30 1990-11-30 Mount lens mounting device

Country Status (1)

Country Link
JP (1) JPH04207358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207660A (en) * 2010-03-31 2011-10-05 鸿富锦精密工业（深圳）有限公司 Pickup device connecting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207660A (en) * 2010-03-31 2011-10-05 鸿富锦精密工业（深圳）有限公司 Pickup device connecting structure

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