JPS60153019A - Lens device - Google Patents

Lens device

Info

Publication number
JPS60153019A
JPS60153019A JP59008762A JP876284A JPS60153019A JP S60153019 A JPS60153019 A JP S60153019A JP 59008762 A JP59008762 A JP 59008762A JP 876284 A JP876284 A JP 876284A JP S60153019 A JPS60153019 A JP S60153019A
Authority
JP
Japan
Prior art keywords
lens
optical axis
group lens
reflecting element
mirror
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
JP59008762A
Other languages
Japanese (ja)
Inventor
Mamoru Hiroyasu
廣保　守
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59008762A priority Critical patent/JPS60153019A/en
Priority to US06/691,703 priority patent/US4665430A/en
Priority to EP85300286A priority patent/EP0152181A3/en
Publication of JPS60153019A publication Critical patent/JPS60153019A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • 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
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Abstract

PURPOSE:To obtain a wide visual range by providing a focusing point lens equipped with a reflecting element and rotating it by a driving device while the 1st optical axis in front of the reflecting element (f) and the 2nd optical axis behind the reflecting element (f) are set at a specific angle. CONSTITUTION:The reflecting element (mirror) 6 which changes the direction of the optical axis by 45 deg. and a rear group lens 7 are arranged behind a front group lens 5, and the front group lens 5, mirror 6, and rear group lens 7 are set in a lens barrel 8. The lens barrel 8 is provided with a gear 9 and a gear 10 is fixed on the rotating shaft of a motor 11. The gears 9 and 10 engage each other and the rotation of the motor 11 is transmitted to the lens barrel 8, which is rotated. Consequently, the wide visible range is obtained by rotating only the lens structure and the driving device such as the motors may have only small turning force.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、テレビカメラ等に用いられるレンズ装置に関
するものである、 従来例の構成とその問題点 一般に、テレビカメラ等の監視カメラにおいてより広い
範囲の監視を行なう時には、レンズを含むカメラ本体を
回転可能にし、モータ等の駆動装置により、その方向を
制御している。しかし、カメラ本体は重くモータ等は大
きな駆動力を必要としている。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lens device used in a television camera or the like. When monitoring, the camera body including the lens is made rotatable, and its direction is controlled by a drive device such as a motor. However, the camera body is heavy and the motor etc. require large driving force.

又、自動車等の後部、あるいは建物の外部の監視用とし
て使用する場合には、レンズを含むカメラ本体を風雨よ
り守るために大きなケースを必要としていた。Furthermore, when used for monitoring the rear of a car or the like or the outside of a building, a large case is required to protect the camera body including the lens from wind and rain.

さらに、カメラ本体は、自動車あるいは建物の外部に設
置されているため、防犯上きわめて不利である。Furthermore, since the camera body is installed outside a car or building, it is extremely disadvantageous in terms of crime prevention.

発明の・目的 本発明は、上記のような従来の欠点を除去し、簡単な構
成で広範囲な視野を得ることができるテレビカメラ等の
レンズ装置を提供することを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to provide a lens device for a television camera or the like that can eliminate the above-mentioned conventional drawbacks and provide a wide field of view with a simple configuration.

発明の構成 本発明においては、合焦点レンズのレンズ群とレンズ群
との間にミラーやプリズム等の反射素子を設けることに
より光軸に角度をもたせ、反射素子の後部の光軸を中心
としてモータ等を使用した駆動装置を用いて、レンズ構
体を回転させるものである。Structure of the Invention In the present invention, a reflective element such as a mirror or a prism is provided between the lens groups of the focusing lens to give an angle to the optical axis, and the motor is centered around the optical axis at the rear of the reflective element. The lens structure is rotated using a drive device using a drive device such as the following.

これにより、小さな駆動力で回転でき、そして自動車や
建物等の周囲を監視する場合には、少なくともレンズ構
体のみを外部に出せばよいため、デザイン上きわめて有
利であるばかりでなく、防風雨ケースも小さく簡単なも
のでよく、又防犯対策にもきわめて有効なものである。As a result, it can rotate with a small driving force, and when monitoring the surroundings of cars or buildings, at least only the lens structure needs to be exposed outside, which is not only extremely advantageous in terms of design, but also allows for windproof and rainproof cases. It can be small and simple, and is extremely effective as a crime prevention measure.

実施例の説明 以下、本発明の一実施例を図面を参照して説明する。第
１図は、自動車に実施した場合を示すものであり、自動
車の後部を横方向から見た側面図である。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a case in which the present invention is applied to an automobile, and is a side view of the rear of the automobile viewed from the side.

この装置では、自動車１の後部上方にカメラを数句け、
カメラ本体は自動車内部に設け、透明なレンズ防風雨ケ
ース２のみを外部に出（７ている。In this device, several cameras are placed above the rear of the car 1.
The camera body is installed inside the car, and only the transparent lens windproof and rainproof case 2 is exposed outside (7).

前群レンズの光軸ば３ｂの方向を向いている。３ｂは自
動車後方水平方向３ｄより４５度下方に向いている。こ
のときの可視範囲は３ａから３Ｃ″？ｆ、での間である
。レンズ構体ば３ａを軸として回転可能となりている。The optical axis of the front group lens faces in the direction of 3b. 3b is oriented 45 degrees downward from the horizontal direction 3d at the rear of the vehicle. The visible range at this time is between 3a and 3C''?f.The lens structure is rotatable around 3a.

第２図は、自動車後部の平面図である。第１図に示す３
ｂの方向から、３ａを軸として４ｄの方向へ右に９０度
回転すると、前群レンズは４Ｃの方向を向いている。こ
のときの可視範囲は３ａから４ｄである。FIG. 2 is a plan view of the rear part of the automobile. 3 shown in Figure 1
When rotated 90 degrees to the right from direction b to direction 4d about 3a, the front group lens faces direction 4C. The visible range at this time is from 3a to 4d.

又、反対に４ａの方向へ左に９０度回転すると、前群レ
ンズは４ｂの方向を向いている。このときの可視範囲は
、３ａから４ａである。Conversely, when the front lens group is rotated 90 degrees to the left in the direction of 4a, the front group lens faces in the direction of 4b. The visible range at this time is from 3a to 4a.

このように、３ａを軸としてレンズ構体を回転すること
により、より広い範囲を見ることができる。In this way, by rotating the lens structure about 3a, a wider range can be seen.

第３図はレンズ構体の断面図である。前群レンズらの後
部には光軸を４５度反射する反射素子（以下ミラーと言
う）６及び後群レンズ７が配置されており、前群レンズ
６、ミラー６、後群レンズ了は鏡筒８にセットされてい
る。鏡筒８にはギヤー９が設けられ、ギヤー１０はモー
タ１１の回転軸に固定されている。ギヤー９とギヤー１
０は係合されており、モータ１１の回転は、鏡筒８に伝
えられ、回転するものである。上記実施例は、自動車に
使用したものであるが、建物等の周囲を監視する防犯カ
メラのレンズ構体として有効なる使用ができることば程
う捷でもない。尚」−記実施例は、後群レンズを含む全
体を一体として回転させたが、前群レンズとミラーとを
一体とする場合、及び前群レンズ、ミラー、後群レンズ
の一部とを一体とした場合、又は前群レンズのない場合
ミラーと後群レンズとを一体とした場合等、いろいろな
考えが出来ることは熱論のことである。FIG. 3 is a sectional view of the lens structure. At the rear of the front group lens, a reflective element (hereinafter referred to as mirror) 6 that reflects the optical axis by 45 degrees and a rear group lens 7 are arranged. It is set to 8. A gear 9 is provided on the lens barrel 8, and the gear 10 is fixed to the rotating shaft of a motor 11. gear 9 and gear 1
0 is engaged, and the rotation of the motor 11 is transmitted to the lens barrel 8, causing it to rotate. Although the above-mentioned embodiment is used for a car, it is not so good that it can be effectively used as a lens structure for a security camera for monitoring the surroundings of buildings and the like. In addition, in the embodiment described above, the entire body including the rear group lens was rotated as one unit, but when the front group lens and mirror are integrally formed, or when the front group lens, mirror, and a part of the rear group lens are rotated as one body. It is a matter of opinion that various ideas can be made, such as a case where there is no front group lens, or a case where the mirror and rear group lens are integrated.

発明の効果 以上のように、本発明によれは、レンズ構体のみを回転
することによってより広い可視範囲を荀ることができ、
モータ等の駆動装置はより小さな回転力のものでよくす
ることができる。Effects of the Invention As described above, according to the present invention, a wider visible range can be observed by rotating only the lens structure.
A driving device such as a motor can be used with a smaller rotational force.

特に、自動車等に実施する場合には、テレビカメラ本体
は自動車本体の内部に設置し、レンズ構体のみを外部に
出すことができるため、デザイン上きわめて有利である
ばかりでなく、防風雨ケースも小さく簡単なものにする
ことができる。また、その場合、テレビカメラ本体を自
動車等の本体の内部に設置でき、他人等による損傷を受
けにくく、防犯対策にもきわめて有効なものである。In particular, when it is installed in a car, the TV camera body can be installed inside the car body, and only the lens structure can be exposed outside, which is not only extremely advantageous in terms of design, but also allows for a smaller windproof and rainproof case. It can be made simple. In addition, in this case, the television camera body can be installed inside the body of a car or the like, is less likely to be damaged by others, and is extremely effective as a crime prevention measure.

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

第１図は本発明の一実施例におけるレンズ装置を自動車
に設置した状態の側面図４第２図はその平面図、第３図
は同レンズ装置の要部の断面図である。 １・・・　自動車、２　゛−レンズ防風両ケース、５・
・・前群レンズ、６・・　ミラー、７　・後群レンズ、
８・　鏡筒、９．１０・・−ギヤー、１１・・モータ。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第　
１　図 ＪＣ 第２図 第３図FIG. 1 is a side view of a lens device according to an embodiment of the present invention installed in an automobile; FIG. 2 is a plan view thereof; and FIG. 3 is a sectional view of essential parts of the lens device. 1... Automobile, 2 - Lens windproof double case, 5.
・Front group lens, 6... Mirror, 7 ・Rear group lens,
8. Lens barrel, 9.10...-gear, 11...motor. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure JC Figure 2 Figure 3

Claims (3)

【特許請求の範囲】[Claims] （１）反射素子を具備した合焦点レンズを有し、前記反
射素子より前部の第１光軸と前記反射素子よシ後部の第
２光軸とに角度をもたせて駆動装置により第２光軸を中
心として回転可能にしたレンズ装置。(1) A focusing lens equipped with a reflective element is provided, and a second optical axis is generated by a driving device with an angle between a first optical axis in front of the reflective element and a second optical axis behind the reflective element. A lens device that can rotate around an axis. （２）反射素子と第１光軸に具備されたレンズ群と第２
光軸に具備された少なくとも１群以上のレンズ群とを一
体として、第２光軸を中心として回転可能にした特許請
求の範囲第１項記載のレンズ装置・(2) A reflective element, a lens group provided on the first optical axis, and a second
The lens device according to claim 1, wherein at least one lens group provided on the optical axis is integrally rotatable about the second optical axis. （３）反射素子と第１光軸に具備されたレンズ群とを一
体として、第２光軸を中心として回転可能にした特許請
求の範囲第１項記載のレンズ装置。(3) The lens device according to claim 1, wherein the reflective element and the lens group provided on the first optical axis are integrally made rotatable about the second optical axis.
JP59008762A 1984-01-20 1984-01-20 Lens device Pending JPS60153019A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59008762A JPS60153019A (en) 1984-01-20 1984-01-20 Lens device
US06/691,703 US4665430A (en) 1984-01-20 1985-01-15 Monitoring apparatus
EP85300286A EP0152181A3 (en) 1984-01-20 1985-01-16 Monitoring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59008762A JPS60153019A (en) 1984-01-20 1984-01-20 Lens device

Publications (1)

Publication Number Publication Date
JPS60153019A true JPS60153019A (en) 1985-08-12

Family

ID=11701924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59008762A Pending JPS60153019A (en) 1984-01-20 1984-01-20 Lens device

Country Status (1)

Country Link
JP (1) JPS60153019A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076234A1 (en) * 2003-02-25 2004-09-10 Daimlerchrysler Ag Catadioptric camera for a technical device, especially a motor vehicle
CN109484300A (en) * 2017-09-13 2019-03-19 Trw汽车美国有限责任公司 Vehicle camera system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076234A1 (en) * 2003-02-25 2004-09-10 Daimlerchrysler Ag Catadioptric camera for a technical device, especially a motor vehicle
CN109484300A (en) * 2017-09-13 2019-03-19 Trw汽车美国有限责任公司 Vehicle camera system

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