JPH05113593A - Storoboscopic device - Google Patents

Storoboscopic device

Info

Publication number
JPH05113593A
JPH05113593A JP27569091A JP27569091A JPH05113593A JP H05113593 A JPH05113593 A JP H05113593A JP 27569091 A JP27569091 A JP 27569091A JP 27569091 A JP27569091 A JP 27569091A JP H05113593 A JPH05113593 A JP H05113593A
Authority
JP
Japan
Prior art keywords
reflector
arc tube
light
flash light
tube
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.)
Granted
Application number
JP27569091A
Other languages
Japanese (ja)
Other versions
JP3030139B2 (en
Inventor
Hidenori Sakurai
英則 桜井
Yuji Ogasawara
裕司 小笠原
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP3275690A priority Critical patent/JP3030139B2/en
Publication of JPH05113593A publication Critical patent/JPH05113593A/en
Application granted granted Critical
Publication of JP3030139B2 publication Critical patent/JP3030139B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To eliminate the failure of a reflector in a storoboscopic device and to provide the storoboscopic device provided with the reflector which does not require a large space while a guide number and a light distribution angle are maintained. CONSTITUTION:A cylindrical light emitting tube 1 which emits flash light, the relector 2 which reflects the flash light emitted by the tube 1, an aperture part 3 which is provided on the reflector 2 and which is set so that an object 4 is directly irradiated with the flash light, first curved reflection parts 2a, 2b which are provided on the reflector 2 and which reflect the flash light toward the object 4 side through a gap between the tube 1 and a second curved reflection part 2c which is provided on the reflector 2 and formed along one part of the circumferential surface of the tube 1 by a fixed radius and which directly reflects the flash light toward the tube 1 and guides the reflected light to the aperture part 3 and the first curved reflection parts 2a, 2b.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、ストロボ装置、更に
詳しくは写真撮影等の照明光に使用されるストロボ装置
における反射傘に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strobe device, and more particularly to a reflector in a strobe device used for illumination light such as photography.

【0002】[0002]

【従来の技術】周知のように、写真撮影等に使用される
ストロボ装置は、キセノンガス等を封入した細径の閃光
放電管からなる発光管と、該発光管を内部の奥部中央に
位置させ、その閃光発光を前方に向けて反射する反射傘
と、上記発光管を発光駆動させる電気回路とで構成され
ている。図9は、従来の反射傘102の基本形を示した
ものである。この反射傘102は、縦断面形状が放物線
または楕円形状に形成され、発光管101のアーク放電
方向に対して平行であって、その内面が鏡面仕上げされ
ていて、奥部中央に位置させた発光管101の閃光発光
を被写体に向けて反射し、所望の発光特性を得るように
形成されている。また、この反射傘102の縦断面形状
における縦方向と横方向の寸法は、前面開口部の縦寸法
をDとすると、奥行きの横寸法は2/3 Dとなる。
2. Description of the Related Art As is well known, a strobe device used for photography or the like has an arc tube consisting of a small-diameter flash discharge tube filled with xenon gas and the like, and the arc tube is located at the center of the interior. It is composed of a reflector that reflects the flash light emission forward and an electric circuit that drives the arc tube to emit light. FIG. 9 shows a basic shape of a conventional reflector 102. The reflector 102 is formed in a parabolic or elliptical vertical cross-section, is parallel to the arc discharge direction of the arc tube 101, has an inner surface mirror-finished, and is positioned at the center of the backside. It is formed so that the flash light emission of the tube 101 is reflected toward a subject to obtain a desired light emission characteristic. The vertical and horizontal dimensions of the vertical cross-sectional shape of the reflector 102 are 2 / 3D, where D is the vertical dimension of the front opening.

【0003】[0003]

【発明が解決しようとする課題】このような従来のスト
ロボ装置をカメラに内蔵する場合には、赤目現象を防止
するために撮影レンズから成るべく離間した位置に配置
することになるので、図11に示す如く、カメラ本体1
03内に装着されるフィルムパトローネ104の上方位
置に配設することになる。しかし、上述したように、反
射傘102が発光管101に対して上下対称となる楕円
または放物線の断面形状をしているため、その収納高さ
が高くなり、カメラ全体の縦方向の寸法が大きくなって
カメラを小形化する弊害となってしまう。また、従来の
反射傘102では、該反射傘102が楕円または放物線
形状あるいは上下対称に近い形状に形成されているた
め、図12に示すように、発光管101を受けている部
分において、発光管101から斜め後方に向けて出射さ
れた光線aが反射傘102の内面で反射され、発光管1
01の外周面に戻り、ここで再び外方に向けて反射され
るので、発光管で弾じかれた光が狙った方向へ行かず、
発光効率を低下させているという欠点も伴っていた。
When such a conventional strobe device is built into a camera, it is arranged as far away from the taking lens as possible in order to prevent the red-eye phenomenon. As shown in, the camera body 1
It will be arranged at a position above the film cartridge 104 mounted in the camera 03. However, as described above, since the reflector 102 has an elliptical or parabolic cross-sectional shape that is vertically symmetrical with respect to the arc tube 101, its storage height is high, and the vertical dimension of the entire camera is large. It becomes a harmful effect to downsize the camera. Further, in the conventional reflector 102, since the reflector 102 is formed in an elliptical shape, a parabolic shape, or a shape close to vertical symmetry, as shown in FIG. The light ray a emitted from 101 toward the rear obliquely is reflected on the inner surface of the reflector 102, and the arc tube 1
It returns to the outer peripheral surface of 01 and is reflected again outward, so the light bounced by the arc tube does not go in the target direction,
There was also a drawback that the luminous efficiency was lowered.

【0004】本発明の目的は、このような従来のストロ
ボ装置における反射傘の不具合を除去し、従来のものと
同じガイドナンバ,配光角を保ちながらスペースをとら
ない反射傘を有するストロボ装置を提供するにある。
An object of the present invention is to eliminate the drawbacks of the reflector in such a conventional strobe device, and to provide a strobe device having a reflector that does not take up space while maintaining the same guide number and light distribution angle as those of the conventional strobe device. To provide.

【0005】[0005]

【課題を解決するための手段】本発明のストロボ装置
は、閃光発光を行う円筒状の発光管と、この発光管で発
光された閃光を反射する反射傘と、この反射傘に設けら
れており、上記閃光が被写体を直接照射するための開口
部と、上記反射傘に設けられていて、上記発光管との間
隙を介して被写体側に上記閃光を反射する第1の曲面反
射部と、上記反射傘に設けられていて、上記発光管の円
周面の一部に一定の半径で沿うように形成されて上記閃
光を直接発光管に向けて反射し、該反射光を上記開口部
および上記第1の曲面反射部に導く第2の曲面反射部と
を具備することを特徴とする。
The strobe device of the present invention is provided with a cylindrical arc tube for emitting flash light, a reflecting umbrella for reflecting the flash light emitted by the arc tube, and the reflecting umbrella. An opening for directly irradiating the subject with the flash of light, and a first curved reflector provided on the reflector for reflecting the flash of light to the subject through a gap with the arc tube. It is provided on the reflector and is formed along a part of the circumferential surface of the arc tube with a constant radius to reflect the flash light directly toward the arc tube and to reflect the reflected light to the opening and the It is characterized by comprising a second curved reflecting portion that leads to the first curved reflecting portion.

【0006】[0006]

【作用】上記反射傘は、発光管の閃光発光を、被写体に
向けて開口部より直接照射すると共に、第1の曲面反射
部で反射させて被写体に向けて照射し、かつ、第2の曲
面反射部で直接発光管に向けて反射し、該反射光を発光
管を通して上記開口部および上記第1の曲面反射部に導
いて被写体に向けて照射する。
In the reflector, the flash light emitted from the arc tube is directly emitted from the opening toward the subject, and is also reflected by the first curved reflecting portion to be emitted toward the subject, and the second curved surface is also emitted. The reflecting portion directly reflects the light toward the arc tube, guides the reflected light through the arc tube to the opening and the first curved reflecting portion, and irradiates the subject.

【0007】[0007]

【実施例】以下、図示の実施例によって本発明を説明す
る。先ず、本発明のストロボ装置における反射傘の特徴
は、発光管からの閃光発光を被写体に向けて照射する反
射面を、発光管に対して片側だけで形成される反射鏡面
(第1の曲面反射部)と、この反射鏡面に連設されてい
て、発光管の外周面の略半周を包囲する形状であって閃
光発光を発光管に向け同管を透過するように反射する反
射鏡面(第2の曲面反射部)で構成されている。
The present invention will be described below with reference to the illustrated embodiments. First, the feature of the reflector in the strobe device of the present invention is that the reflecting surface for irradiating the subject with flash light emitted from the arc tube is a reflecting mirror surface (first curved surface reflection) formed only on one side of the arc tube. Part) and a reflecting mirror surface (second part) which is connected to this reflecting mirror surface and which surrounds the outer peripheral surface of the arc tube approximately halfway and which reflects flash light toward the arc tube so as to pass through the tube. Curved surface reflection part).

【0008】図1は、本発明の第1実施例を示すストロ
ボ装置における反射傘2の縦断面図である。この反射傘
2は、発光管1の外周面の右斜め上方(図1において)
の略半分(約180度)を覆うように、発光管1の長手
方向に沿い、発光管1の外周面に密接する反射面を有し
て形成された上記第2の曲面反射部2cと、この第2の
曲面反射部2cの右斜め下方(図1において)の後端に
連設されていて、反射部2cから略直角に折れ曲って発
光管1の半径方向に向けて延び出した逃げ部2dと、こ
の逃げ部2dの先端部に略直角に前方に向けて折り曲げ
られて連設された第1の曲面反射部2a,2bとで形成
されている。
FIG. 1 is a vertical sectional view of a reflector 2 in a strobe device showing a first embodiment of the present invention. The reflector 2 is obliquely above and right above the outer peripheral surface of the arc tube 1 (in FIG. 1).
A second curved reflecting portion 2c formed along the longitudinal direction of the arc tube 1 so as to cover about half (about 180 degrees) of the arc tube 1 and having a reflecting surface in close contact with the outer peripheral surface of the arc tube 1. This escape is continuous with the rear end of the second curved reflecting portion 2c to the lower right (in FIG. 1), bends from the reflecting portion 2c at a substantially right angle, and extends in the radial direction of the arc tube 1. It is formed by the portion 2d and the first curved reflecting portions 2a, 2b which are bent forward at a substantially right angle to the tip of the escape portion 2d and are continuously provided.

【0009】上記第1の曲面反射部2a,2bは、その
うちの前部の反射部2bが比較的大きな部分円弧状の反
射鏡面に形成され、後部の反射部2aが上記反射部2b
の略半分の部分円弧状の比較的小さな反射鏡面で形成さ
れている。なお、上記逃げ部2dは反射部2aの曲面で
反射されるポイント2a−n付近の光が発光管1にぶつ
からないように反射部2aの曲面を下方に逃がすための
部分である。
In the first curved reflecting portions 2a and 2b, the reflecting portion 2b at the front of the first curved reflecting portions 2a and 2b is formed on a relatively large partially arcuate reflecting mirror surface, and the reflecting portion 2a at the rear portion is the reflecting portion 2b.
Is formed by a relatively small reflecting mirror surface having a substantially arcuate half shape. The escape portion 2d is a portion for allowing the curved surface of the reflecting portion 2a to escape downward so that light near the points 2a-n reflected by the curved surface of the reflecting portion 2a does not hit the arc tube 1.

【0010】このように上記反射傘2は、第1の曲面反
射部2a,2bおよび第2の曲面反射部2cを有して形
成されていて、発光管1からの閃光発光を4つの投射角
範囲θA 〜θD に分け、被写体4に向けて照射するよう
になっている。次に、その作用について述べると、ま
ず、発光管1の前面の開口部3から出た投射角範囲θA
の光は、直接被写体4に向けて照射される。また、第1
の曲面反射部2bに向けて発せられた投射角範囲θB の
閃光は、曲面のポイント2b−1〜2b−nの間で反射
され、照射角θB0の範囲で被写体4に向けて照射され
る。この反射部2bの曲面は、各ポイント2b−1〜2
b−nに当った光が反射して被写体を照射する角度を徐
々に変えていく曲面である。更に、第1の曲面反射部2
aに向けて発せられた投射角範囲θC の閃光は、曲面の
ポイント2a−1〜2a−nの間で反射され、照射角θ
C0の範囲で被写体4に向けて照射される。この曲面の役
目は、上記反射部2bの曲面と同様である。そして、第
2の曲面反射部2cに向けて発せられた投射角範囲θD
の閃光発光は、発光管1の半径に沿った半円形状の曲面
の各ポイント2c−1〜2c−nに当って反射し、再び
発光管1の中心を通り、照射角θD0の範囲で管外に向け
て照射される。この反射光は、上記前面の開口部3から
投射角範囲θA で直接被写体4に向けて照射される光
と、上記第1の曲面反射部2a,2bのそれぞれの曲面
で照射角θB0の範囲と照射角θC0の範囲で被写体4を照
射する光となる。従って、発光管1から投射された閃光
発光は全て反射傘2によって効率よく、被写体4に向け
て照射されることになる。
As described above, the reflector 2 is formed to have the first curved reflecting portions 2a and 2b and the second curved reflecting portion 2c, and the flash light emitted from the arc tube 1 is projected at four projection angles. The range is divided into θA to θD, and the subject 4 is irradiated with the light. Next, the operation will be described. First, the projection angle range θA from the opening 3 on the front surface of the arc tube 1 will be described.
Light is emitted directly toward the subject 4. Also, the first
The flash light of the projection angle range θB emitted toward the curved surface reflection portion 2b is reflected between the points 2b-1 to 2b-n of the curved surface and is irradiated toward the subject 4 within the range of the irradiation angle θB0. The curved surface of the reflecting portion 2b has points 2b-1 to 2-2.
It is a curved surface that gradually changes the angle at which the light hitting b-n is reflected to illuminate the subject. In addition, the first curved reflecting portion 2
The flash light of the projection angle range θC emitted toward a is reflected between the points 2a-1 to 2a-n on the curved surface, and the irradiation angle θ
The subject 4 is illuminated in the range of C0. The role of this curved surface is the same as that of the curved surface of the reflecting portion 2b. Then, the projection angle range θD emitted toward the second curved reflecting portion 2c
Of the flash light hits each point 2c-1 to 2c-n of the semicircular curved surface along the radius of the arc tube 1, is reflected, passes through the center of the arc tube 1 again, and falls within the range of the irradiation angle θD0. It is irradiated toward the outside. This reflected light is emitted from the front opening 3 in the projection angle range θA directly toward the subject 4, and the range of the irradiation angle θB0 on each curved surface of the first curved reflecting portions 2a and 2b. The light illuminates the subject 4 within the irradiation angle θC0. Therefore, all the flash light emitted from the arc tube 1 is efficiently emitted toward the subject 4 by the reflector 2.

【0011】図5は、上記反射傘2を有するストロボ装
置のデータで、縦軸にガイドナンバ(GNo)を横軸に
たて配光角をそれぞれとったものであり、このデータか
らも判るように撮影に満足する配光が得られる。
FIG. 5 shows the data of the strobe device having the above-mentioned reflector 2, in which the vertical axis is the guide number (GNo) and the horizontal axis is the light distribution angle, which can be seen from this data. A light distribution that is satisfactory for shooting can be obtained.

【0012】また、図2は、上記反射傘2を有するスト
ロボ装置5を、カメラ本体6内に組み込んだ状態を示し
たものである。前面中央に撮影レンズ7を有する、この
種カメラは、前面上部から上面に亘って曲面部6aが形
成されているものが多い。従って、このようなカメラに
対しては上記反射傘2を有するストロボ装置5を好適に
配設することができる。即ち、図2に示す如く、カメラ
本体6の前面上部の右側部寄りおよび上面前部の右側部
寄りと右側面とからなる角隅部内に、発光窓をカメラ前
方に向けて上記反射傘2を有するストロボ装置5を組み
込むことができる。このように内蔵すれば、反射傘2は
片側だけの形状なので取付スペースが少なくて済み、曲
面部6aを有するカメラに対しても容易に組み込むこと
ができ、また、その分撮影レンズ7からも遠くに離して
配設することができるので、赤目現象の防止に対しても
効果がある。
FIG. 2 shows a state in which the strobe device 5 having the reflector 2 is incorporated in the camera body 6. In many cameras of this type having a photographing lens 7 in the center of the front surface, a curved surface portion 6a is formed from the upper portion of the front surface to the upper surface. Therefore, the strobe device 5 having the reflector 2 can be suitably arranged for such a camera. That is, as shown in FIG. 2, the reflector 2 is placed with the light emitting window toward the front of the camera in the corner formed by the right side of the front upper part of the camera body 6 and the right side of the upper front part and the right side. The strobe device 5 having it can be incorporated. With such a built-in structure, since the reflector 2 has a shape on only one side, the mounting space is small, it can be easily incorporated into a camera having the curved surface portion 6a, and it is far from the taking lens 7 accordingly. Since they can be arranged apart from each other, it is also effective in preventing the red-eye phenomenon.

【0013】また、図3,図4は、上記反射傘2を有す
るストロボ装置5を、リトラクタブルタイプにしてカメ
ラに格納するようにした状態を示したものである。但
し、この場合には、反射傘2は上方側に配設してある。
撮影時には図3に示す格納状態から図4に示すようにス
トロボ装置5を、上方に向けて傾斜させ発光可能状態と
する。このように内蔵させれば、カメラ本体6A内のフ
ィルムパトローネ8の装着室またはフィルム巻取用のス
プール室等の上方部に存在する、上下方向に狭いスペー
ス内にも充分に格納することができる。このようにリト
ラクタブルタイプにすれば、格納スペースが薄くて済
み、また、このリトラクタブルやポップアップにした場
合に、その移動量が小さくて済む効果を発揮する。
FIGS. 3 and 4 show a state in which the strobe device 5 having the reflector 2 is made a retractable type and stored in the camera. However, in this case, the reflector 2 is arranged on the upper side.
At the time of shooting, the strobe device 5 is tilted upward as shown in FIG. 4 from the stored state shown in FIG. If it is built in in this way, it can be sufficiently stored in a vertically narrow space existing in the upper part of the mounting room of the film cartridge 8 in the camera body 6A or the spool room for film winding. .. If the retractable type is used in this way, the storage space can be made thin, and when the retractable type or the pop-up type is used, the movement amount can be small.

【0014】図6は、本発明の第2実施例を示すストロ
ボ装置における反射傘2Aの縦断面図である。この反射
傘2Aは、上記図1の反射傘2の、2つの反射曲面を有
する第1の曲面反射部2a,2bを、1つの反射曲面1
2で形成するようにしたものである。このように形成す
るには、図1の一方の曲面反射部2aを廃止して他方の
曲面反射部2bの曲面を延長して図7に示す如く、1つ
の曲面で第1の曲面反射部13を形成した反射傘2Bを
構成して、被写体への照射角を満足させるようにしなけ
ればならない。
FIG. 6 is a vertical sectional view of a reflector 2A in a strobe device showing a second embodiment of the present invention. This reflector 2A has the same structure as the reflector 1 of the above-mentioned reflector 2 shown in FIG. 1 with the first curved reflecting portions 2a and 2b having two reflecting curved surfaces.
2 is formed. In order to form in this way, one curved surface reflection part 2a of FIG. 1 is abolished and the other curved surface reflection part 2b is extended to form one curved surface of the first curved reflection part 13 as shown in FIG. It is necessary to configure the reflector 2B having the above-mentioned structure so as to satisfy the irradiation angle to the subject.

【0015】しかし、図7に示すように、曲面反射部2
aを廃止し、曲面反射部2bの曲面を延長して1つの曲
面13を形成すると、第2の曲面反射部2cの半円状の
曲面の範囲は、発光管1の中心に対して180°+θF
°の角度範囲となる。このため、θF °の範囲の投射角
において、ロスが発生することになる。このロスを避け
るためには、図6に示す如く、反射曲面12の各ポイン
ト12b−1〜12b−nを、発光管1から遠ざけなけ
ればならない。従って、反射傘2Aが大きくなってしま
うが、デザイン上、このタイプが有効であるならば可能
である。この場合の照射角度範囲はθeとなる。なお、
図7に示す反射傘2Bの場合にも、θF °の角度範囲の
光を無視すれば可能である。
However, as shown in FIG.
When a is eliminated and the curved surface of the curved reflecting portion 2b is extended to form one curved surface 13, the range of the semi-circular curved surface of the second curved reflecting portion 2c is 180 ° with respect to the center of the arc tube 1. + ΘF
It becomes an angle range of °. Therefore, a loss occurs at a projection angle in the range of θF °. In order to avoid this loss, each point 12b-1 to 12b-n of the reflection curved surface 12 must be kept away from the arc tube 1 as shown in FIG. Therefore, the reflector 2A becomes large, but it is possible if this type is effective in terms of design. The irradiation angle range in this case is θe. In addition,
Even in the case of the reflector 2B shown in FIG. 7, it is possible if the light in the angle range of θF ° is ignored.

【0016】図8は、本発明の第3実施例を示すストロ
ボ装置における反射傘2Cの縦断面図である。この反射
傘2Cは部分円弧状の反射曲面10a,10b,10c
を増加して形成したものである。この場合の配光角θ
g,θh,θiは狭くなるが、焦点距離が長いカメラに
おいては配光角が狭くてよいので有効である。更に、上
記図1の第1の曲面反射部2a,2bを、複数の微小平
面を連設することによって形成することもできる。
FIG. 8 is a vertical sectional view of a reflector 2C in a strobe device showing a third embodiment of the present invention. This reflector 2C has a partially arcuate reflection curved surface 10a, 10b, 10c.
Are formed by increasing. Light distribution angle θ in this case
Although g, θh, and θi are narrow, it is effective in a camera having a long focal length because the light distribution angle may be narrow. Further, the first curved reflecting portions 2a and 2b in FIG. 1 can be formed by connecting a plurality of minute planes in series.

【0017】また、本発明のように構成すれば、縦方向
と横方向の大きさは図10に示すように、4/5 Dおよび
Dとなり、前記図9に示した従来の反射傘102と同じ
程度になるが、斜め方向の大きさが極端に小さくなるた
め、カメラに組み込む場合に、従来使用できなかったス
ペースを有効に利用することができ、これによってデザ
イン上の変化をつけることが可能となる。更に、斜め方
向でストロボ装置を配置すれば、その方向に残りスペー
スが存在するので、このスペースに他の部材を配設する
ことができ、カメラの小型化に寄与することができる。
According to the present invention, the vertical and horizontal sizes are 4/5 D and D as shown in FIG. 10, and the size of the conventional reflector 102 shown in FIG. Although it is about the same, the size in the diagonal direction becomes extremely small, so when incorporating it into the camera, it is possible to effectively use the space that could not be used previously, which allows for changes in design. Becomes Furthermore, if the strobe device is arranged in an oblique direction, there is a remaining space in that direction, so other members can be arranged in this space, which contributes to downsizing of the camera.

【0018】更にまた、前記図12に示したように、反
射傘102で反射し更に発光管101の外周面で反射さ
れてロスとなる光aは、本発明においては図13に示す
如く、第2の曲面反射部2cが発光管1の外周面に沿う
半円状の曲面に形成されているため、発光管1の中心か
ら出た光a1 は、この第2の曲面反射部2cで反射した
のち、再び発光管1内に戻り、更に同管内を通って反対
がわへ射出される。このため、この反射光は発光管から
直接出た光と同じ方向に照射されるので、発光効率のよ
い設計をすることができる。
Further, as shown in FIG. 12, the light a which is reflected by the reflector 102 and further reflected by the outer peripheral surface of the arc tube 101 to be a loss is, as shown in FIG. Since the second curved reflecting portion 2c is formed in a semicircular curved surface along the outer peripheral surface of the arc tube 1, the light a1 emitted from the center of the arc tube 1 is reflected by the second curved reflecting portion 2c. After that, it returns to the inside of the arc tube 1 again, and is further injected through the same tube to the other side. For this reason, this reflected light is emitted in the same direction as the light directly emitted from the arc tube, so that it is possible to design with good luminous efficiency.

【0019】[0019]

【発明の効果】以上述べたように本発明によれば、従来
のストロボ装置における反射傘にくらべ、配光特性,発
光効率等を同じにした場合、スペースが半分近くで済む
ので、本ストロボ装置を組み込んだカメラは小型になる
という効果が得られる。
As described above, according to the present invention, when the light distribution characteristics, the luminous efficiency, and the like are the same as those of the conventional strobe device, the space required for the strobe device is almost half. The camera with the built-in can be miniaturized.

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

【図1】本発明の第1実施例を示すストロボ装置におけ
る反射傘の拡大断面図。
FIG. 1 is an enlarged sectional view of a reflector in a strobe device showing a first embodiment of the present invention.

【図2】上記図1のストロボ装置を組み込んだカメラの
斜視図。
FIG. 2 is a perspective view of a camera incorporating the strobe device of FIG.

【図3】上記図1のストロボ装置をリトラクタブルタイ
プにしてカメラに組み込んだ状態を示す概略線図。
FIG. 3 is a schematic diagram showing a state in which the strobe device of FIG. 1 is made a retractable type and incorporated in a camera.

【図4】上記図3のストロボ装置の使用態様を示す概略
線図。
FIG. 4 is a schematic diagram showing how the strobe device shown in FIG. 3 is used.

【図5】上記第1実施例のストロボ装置の配光特性を示
す線図。
FIG. 5 is a diagram showing a light distribution characteristic of the strobe device of the first embodiment.

【図6】本発明の第2実施例を示すストロボ装置におけ
る反射傘の拡大断面図。
FIG. 6 is an enlarged sectional view of a reflector in a strobe device showing a second embodiment of the present invention.

【図7】上記図6の反射傘の変形例を示す拡大断面図。7 is an enlarged cross-sectional view showing a modified example of the reflector shown in FIG.

【図8】本発明の第3実施例を示すストロボ装置におけ
る反射傘の拡大断面図。
FIG. 8 is an enlarged sectional view of a reflector in a strobe device showing a third embodiment of the present invention.

【図9】従来のストロボ装置の反射傘の寸法の一例を示
す拡大断面図。
FIG. 9 is an enlarged cross-sectional view showing an example of dimensions of a reflector of a conventional strobe device.

【図10】本発明のストロボ装置の反射傘の寸法の一例
を示す拡大断面図。
FIG. 10 is an enlarged cross-sectional view showing an example of dimensions of the reflector of the flash device according to the present invention.

【図11】従来のストロボ装置を組み込んだカメラの概
略線図。
FIG. 11 is a schematic diagram of a camera incorporating a conventional strobe device.

【図12】従来のストロボ装置における反射傘の反射光
の一部の状態を示す線図。
FIG. 12 is a diagram showing a state of a part of reflected light from a reflector in a conventional strobe device.

【図13】本発明のストロボ装置における反射傘の反射
光の一部の状態を示す線図。
FIG. 13 is a diagram showing a state of a part of the reflected light of a reflector in the strobe device of the present invention.

【符号の説明】[Explanation of symbols]

1 ……………発光管 2 ……………反射傘 2a,2b……第1の曲面反射部 2c……………第2の曲面反射部 3 ……………開口部 4 ……………被写体 1 ……………… Arc tube 2 ………… Reflector 2a, 2b …… First curved reflector 2c ………… Second curved reflector 3 ………… Opening 4 …… ………subject

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 閃光発光を行う円筒状の発光管と、 この発光管で発光された閃光を反射する反射傘と、 この反射傘に設けられており、上記閃光が被写体を直接
照射するための開口部と、 上記反射傘に設けられていて、上記発光管との間隙を介
して被写体側に上記閃光を反射する第1の曲面反射部
と、 上記反射傘に設けられていて、上記発光管の円周面の一
部に一定の半径で沿うように形成されて上記閃光を直接
発光管に向けて反射し、該反射光を上記開口部および上
記第1の曲面反射部に導く第2の曲面反射部と、 を具備することを特徴とするストロボ装置。
1. A cylindrical arc tube that emits flash light, a reflector that reflects the flash light emitted by the arc tube, and a reflector that is provided on the reflector for directly irradiating the subject with the flash light. An opening, a first curved reflecting portion provided on the reflecting umbrella to reflect the flash light toward the subject side through a gap between the reflecting tube and the arc tube, and the reflecting tube provided on the reflecting umbrella. Is formed so as to follow a part of the circumferential surface of the lamp with a constant radius, reflects the flash light directly toward the arc tube, and guides the reflected light to the opening and the first curved reflecting portion. A strobe device comprising: a curved reflecting portion;
JP3275690A 1991-10-23 1991-10-23 Strobe device Expired - Fee Related JP3030139B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3275690A JP3030139B2 (en) 1991-10-23 1991-10-23 Strobe device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3275690A JP3030139B2 (en) 1991-10-23 1991-10-23 Strobe device

Publications (2)

Publication Number Publication Date
JPH05113593A true JPH05113593A (en) 1993-05-07
JP3030139B2 JP3030139B2 (en) 2000-04-10

Family

ID=17559003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3275690A Expired - Fee Related JP3030139B2 (en) 1991-10-23 1991-10-23 Strobe device

Country Status (1)

Country Link
JP (1) JP3030139B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009300966A (en) * 2008-06-17 2009-12-24 Stanley Electric Co Ltd Strobe reflector for camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009300966A (en) * 2008-06-17 2009-12-24 Stanley Electric Co Ltd Strobe reflector for camera

Also Published As

Publication number Publication date
JP3030139B2 (en) 2000-04-10

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