JPH0426828A - Flash system for close-up - Google Patents

Flash system for close-up

Info

Publication number
JPH0426828A
JPH0426828A JP2130385A JP13038590A JPH0426828A JP H0426828 A JPH0426828 A JP H0426828A JP 2130385 A JP2130385 A JP 2130385A JP 13038590 A JP13038590 A JP 13038590A JP H0426828 A JPH0426828 A JP H0426828A
Authority
JP
Japan
Prior art keywords
flash
power
control
contact
close
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
JP2130385A
Other languages
Japanese (ja)
Inventor
Kanehiro Shimokuri
下栗 兼弘
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.)
Sigma Corp
Sigma Inc
Original Assignee
Sigma Corp
Sigma Inc
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 Sigma Corp, Sigma Inc filed Critical Sigma Corp
Priority to JP2130385A priority Critical patent/JPH0426828A/en
Publication of JPH0426828A publication Critical patent/JPH0426828A/en
Pending legal-status Critical Current

Links

Landscapes

  • Accessories Of Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

PURPOSE:To prevent obstruction in a photographing operation and to eliminate the need of the time for connecting a connection cord by supplying a signal and power from a camera main body through a lens barrel so that the power supply and the control of a flash may be performed. CONSTITUTION:A power source contact for receiving the power supply from the light source 12 and a contact for control for receiving the control of the flash are provided on the attaching part of a ring flash 18, and electric contacts corresponding to the respective electric contacts of the power source contact for supplying the power from the power source 12 to the ring flash 18 and the contact for control for controlling the ring flash 18 are provided at the tip part of a photographing lens. Therefore, the signal and the power are supplied through the photographing lens barrel. Thus, the flash 18 is connected to the camera main body without using the connection cord, the obstruction in the photographing operation is eliminated and the connection of the connection cord is not necessitated.

Description

【発明の詳細な説明】 (N梁上の利用分野) 本発明はカメラの撮影レンズ先端に取り付けて使用する
電子閃光装置、所謂リングフラッシュ等の電子閃光装置
の電力供給システムに関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Application on N Beam) The present invention relates to a power supply system for an electronic flash device such as a so-called ring flash, which is used by being attached to the tip of a photographic lens of a camera.

(従来の技術) 電子閃光装置はカメラ本体のアクセサリ−シューの部分
に取り付けるもの、カメラ本体の三脚用ネジに取り付け
るグリップ式のもの、カメラ本体に内蔵したもの、撮影
レンズの先端に取り付けるもの等がある。
(Prior art) Electronic flash devices include those that are attached to the accessory shoe of the camera body, those that are grip type that are attached to the tripod screw of the camera body, those that are built into the camera body, and those that are attached to the tip of the photographic lens. be.

カメラの撮影レンズ先端の外周部に取り付けて使用する
電子閃光装置、所謂リングフラッシュはレンズと被写体
の距離を小さくできるので主に接写撮影等に用いられて
いる。
2. Description of the Related Art An electronic flash device, a so-called ring flash, which is attached to the outer periphery of the tip of a photographic lens of a camera, is mainly used for close-up photography, etc., because it can reduce the distance between the lens and the subject.

一般にリングフラッシュは第3図に示す構成となってい
る。即ち、31がカメラ本体、32が撮影レンズであり
、撮影レンズ32の先端に閃光発光用の閃光放電管33
a・33bど撮影前の撮影距離調節及び構図決定、或い
は被写体のライティングの確認の等の補助照明用として
のモデリングランプ34a・34bを有するリングフラ
ッシュ本体35を取り付け、カメラ本体31のアクセサ
リ−シューの部分(不図示)にフラッシュの電源及びモ
デリングランプを制御する電源制御部36を取り付け、
リングフラッシュ本体35と電源制御部36を接続コー
ド37で接続して使用する構成になっている。
Generally, a ring flash has a configuration shown in FIG. That is, 31 is a camera body, 32 is a photographic lens, and a flash discharge tube 33 for flashlight emission is attached to the tip of the photographic lens 32.
Attach a ring flash body 35 with modeling lamps 34a and 34b for auxiliary illumination such as adjusting the shooting distance and determining the composition before shooting, or checking the lighting of the subject, etc. to a and 33b, and attach the ring flash body 35 to the accessory shoe of the camera body 31. A power supply control unit 36 for controlling the power supply for the flash and the modeling lamp is attached to the part (not shown),
The ring flash main body 35 and the power supply control section 36 are connected by a connection cord 37 for use.

また、撮影レンズ本体の先端部にリングフラッシュを内
蔵させ、前述のリングフラッシュと同様にカメラ本体の
アクセサリ−シューの部分にフラッシュの電源部を取り
付け、交換レンズのマウント近傍からコードにより電源
部に接続する方式の交換レンズもある。
In addition, a ring flash is built into the tip of the photographic lens body, and like the ring flash mentioned above, the power supply for the flash is attached to the accessory shoe of the camera body, and connected to the power supply by a cord from near the mount of the interchangeable lens. There are also interchangeable lenses that do this.

(発明が解決しようとする問題点) 電子閃光装置のうち、カメラ本体のアクセサリ−シュー
の部分に取り付けるもの、カメラ本体に内蔵のもの以外
は電子閃光装置とカメラ本体を接続コードで接続してい
る。
(Problem to be Solved by the Invention) Among electronic flash devices, the electronic flash device and the camera body are connected with a connecting cord, except for those that are attached to the accessory shoe part of the camera body and those that are built into the camera body. .

特に交換レンズの先端に取り付けるリングフラッシュの
場合、第3図に示すように接続コード37がカメラ本体
のアクセサリ−シュ一部(不図示)から交換レンズ32
の先端に接続されるため、接続コード37が交換レンズ
32のピント調整環38及び絞り環39の部分に触れ、
撮影操作の妨げになったり、リングフラッシュを使用す
る場合リングフラッシュ本体35と制御電源部36を接
続コード37で接続しなければならす、手間が掛かる問
題があった。
In particular, in the case of a ring flash that is attached to the tip of an interchangeable lens, as shown in FIG.
Since the connection cord 37 touches the focus adjustment ring 38 and aperture ring 39 of the interchangeable lens 32,
There are problems in that it interferes with photographing operations, and that when using a ring flash, it is necessary to connect the ring flash main body 35 and the control power supply unit 36 with a connection cord 37, which is time-consuming.

(問題点を解決するための手段) 本発明では撮影レンズの先端部に装着して使用する接写
用フラッシュにおいて、接写用フラッシュの撮影レンズ
先端部への取り付け部に電源からの電力の供給を受ける
電源接点とフラッシュの制御を受ける制御用接点を設け
、また撮影レンズの先端部には電源からフラッシュに電
力を供給する電源接点とフラッシュの制御をする制御用
接点を設け、フラッシュの1!源及び制御をレンズ鎖部
を介してカメラ本体から信号及び電源供給を行なった。
(Means for Solving the Problems) In the present invention, in a close-up flash that is used by being attached to the tip of a photographic lens, power is supplied from a power supply to the attachment part of the close-up flash to the tip of the photographic lens. A power contact and a control contact to control the flash are provided, and a power contact to supply power from the power source to the flash and a control contact to control the flash are provided at the tip of the photographic lens. Signals and power were supplied from the camera body via the lens chain.

(実施例) 以下、実施例により本発明の接写用フラッシュシステム
の説明をする。
(Example) Hereinafter, the close-up flash system of the present invention will be explained using an example.

第1図、第2図は本発明を適用した接写用フラッシュシ
ステムを示す回路図である。
1 and 2 are circuit diagrams showing a close-up flash system to which the present invention is applied.

第1図は接写用フラッシュの電源と制御装置を外部に備
えるタイプの回路図で、図においてAは接写用フラッシ
ュの電源を有する制御電源装置。
FIG. 1 is a circuit diagram of a type in which a power supply and control device for a flash for close-up photography are provided externally, and in the figure, A is a control power supply device having a power supply for a flash for close-up photography.

Bがカメラ本体、Cが交換レンズ、Dが交換レンズの先
端に取り付けられる接写用フラッシュ装置であり、接点
群CAIとC11!、CBIどCc 1. Cc zと
CDIにより接続されていることを示している。
B is the camera body, C is the interchangeable lens, D is the close-up flash device attached to the tip of the interchangeable lens, and the contact groups CAI and C11! , CBI Cc 1. It shows that it is connected to Cc z by CDI.

11が電源スィッチ、12が電源、13がDC/DCコ
ンバータ、14が主キャパシタである。
11 is a power switch, 12 is a power supply, 13 is a DC/DC converter, and 14 is a main capacitor.

15はトリガスイッチ16が閉成することにより閃光放
電管18をトリガするトリガ回路であり、17がモデリ
ングランプ19をオン・オフさせるための制御スイッチ
である。
15 is a trigger circuit that triggers the flash discharge tube 18 when the trigger switch 16 is closed, and 17 is a control switch for turning the modeling lamp 19 on and off.

第2図は接写用フラッシュの電源と制御装置をカメラ本
体に備えるタイプの回路図で1図においてB′はカメラ
本体内の接写用フラッシュの電源を有する制御電源装置
、Cが交換レンズ、Dが交換レンズの先端に取り付けら
れる接写用フラッシュ装置であり、接点群C1とCC1
,catどCDLにより接続されていることを示してい
る。
Figure 2 is a circuit diagram of a type in which the power source and control device for the close-up flash are provided in the camera body. In Figure 1, B' is the control power supply device that has the power source for the close-up flash inside the camera body, C is the interchangeable lens, and D is the circuit diagram. This is a close-up flash device that is attached to the tip of an interchangeable lens, and has contact groups C1 and CC1.
, cat, etc. indicates that they are connected by CDL.

21が電源スィッチ、22が電源、23がDC/DCコ
ンバータ、24が主キャパシタである。
21 is a power switch, 22 is a power supply, 23 is a DC/DC converter, and 24 is a main capacitor.

25はトリガスイッチ2Gが閉成することにより閃光放
電管8をトリガするトリガ回路であり、27がモデリン
グランプ9をオン・オフさせるための制御スイッチであ
る。
25 is a trigger circuit that triggers the flash discharge tube 8 when the trigger switch 2G is closed, and 27 is a control switch for turning the modeling lamp 9 on and off.

(発明の効果) 本発明では、リングフラッシュの取り付け部に電源から
の電力の供給を受ける電源接点とフラッシュの制御を受
ける制御用接点を設け、また撮影レンズの先端部には電
源からリングフラッシュに電力を供給する電源接点とリ
ングフラッシュの制御をする制御用制御用接点のそれぞ
れの電気接点に対応する電気接点を設けることにより、
撮影レンズ鏡筒を介して、信号及び電源供給を行なフた
ので、リングフラッシュからカメラ本体に接続コードを
用いずに接続することができ、撮影操作の妨げを無くす
効果があり、また接続コードの接続を必要とせず、着脱
が可能であるので必要の無い場合1通常のレンズどして
の撮影が可能で、携帯性が良い。
(Effects of the Invention) In the present invention, a power supply contact for receiving power from the power supply and a control contact for controlling the flash are provided at the mounting part of the ring flash, and a control contact for controlling the flash is provided at the tip of the photographic lens. By providing electrical contacts that correspond to the power contacts that supply power and the control contacts that control the ring flash,
Since signals and power are supplied through the photographic lens barrel, it is possible to connect the ring flash to the camera body without using a connection cord, which has the effect of eliminating interference with shooting operations. It does not require connection and can be attached and detached, so when it is not needed, it can be used as a normal lens to take pictures, making it highly portable.

また、本実施例は閃光装置を手動式のリングフラッシュ
で説明したが、自動調光式のリングフラッシュに適用で
きることは言うまでもない。
Furthermore, although this embodiment has been described using a manual ring flash as the flash device, it goes without saying that the present invention can also be applied to an automatic light control type ring flash.

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

第1図、第2図は本発明を適用した接写用フラッシュシ
ステムを示す回路図、第3図は従来例のリングフラッシ
ュシステムを示す斜視図である。 C^1・CSt・Ca2・Cat、 GO!、Co t
°°°°゛接点群・11.21・・・・・・電源スィッ
チ、12.22・・・・・・電源。 13.23・・・・・・DC/DCコンバータ、14.
24・・・・・・主キャパシタ、15.25・・・・・
・トリガ回路、 16.26・・・・・・トリガスイッチ。 17.27・・・・・・制御スイッチ、18・・・・・
・・・・・・・・・・閃光放電管。 19・・・・・・・・・・・・・・・モデリングランプ
1 and 2 are circuit diagrams showing a close-up flash system to which the present invention is applied, and FIG. 3 is a perspective view showing a conventional ring flash system. C^1・CSt・Ca2・Cat, GO! , Co t
°°°°゛Contact group・11.21...Power switch, 12.22...Power supply. 13.23...DC/DC converter, 14.
24... Main capacitor, 15.25...
・Trigger circuit, 16.26...Trigger switch. 17.27... Control switch, 18...
・・・・・・・・・Flash discharge tube. 19・・・・・・・・・・・・Modeling lamp.

Claims (1)

【特許請求の範囲】[Claims]  撮影レンズの先端部に装着して使用する接写用フラッ
シュにおいて、該接写用フラッシュの撮影レンズ先端部
への取り付け部に電源からの電力の供給を受ける電源接
点とフラッシュの制御を受ける制御用接点を設け、また
撮影レンズの先端部には電源からフラッシュに電力を供
給する電源接点とフラッシュの制御をする制御用接点を
設け、フラッシュの電源及び制御をレンズ鏡筒を介して
カメラ本体から行なうことを特徴とする接写用フラッシ
ュシステム。
In a close-up flash that is used by being attached to the tip of a photographic lens, a power contact that receives power from the power source and a control contact that controls the flash are installed at the attachment point of the close-up flash to the tip of the photographic lens. In addition, a power supply contact for supplying power to the flash from the power source and a control contact for controlling the flash are provided at the tip of the photographic lens, allowing the flash to be powered and controlled from the camera body via the lens barrel. Features a close-up flash system.
JP2130385A 1990-05-22 1990-05-22 Flash system for close-up Pending JPH0426828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2130385A JPH0426828A (en) 1990-05-22 1990-05-22 Flash system for close-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2130385A JPH0426828A (en) 1990-05-22 1990-05-22 Flash system for close-up

Publications (1)

Publication Number Publication Date
JPH0426828A true JPH0426828A (en) 1992-01-30

Family

ID=15033065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2130385A Pending JPH0426828A (en) 1990-05-22 1990-05-22 Flash system for close-up

Country Status (1)

Country Link
JP (1) JPH0426828A (en)

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