JPH06130467A - Illumination light for video camera - Google Patents
Illumination light for video cameraInfo
- Publication number
- JPH06130467A JPH06130467A JP4304410A JP30441092A JPH06130467A JP H06130467 A JPH06130467 A JP H06130467A JP 4304410 A JP4304410 A JP 4304410A JP 30441092 A JP30441092 A JP 30441092A JP H06130467 A JPH06130467 A JP H06130467A
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens
- light projecting
- lenses
- projecting 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ビデオカメラ撮影に
使用される照明用ライトに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminating light used for video camera photography.
【０００２】[0002]
【従来の技術】従来のこの種の照明用ライトの光源部を
図５に示す。１は光源としてのハロゲンランプで、図示
しない照明用のライト回路に接続されている。２はラン
プ１を内底部中央に設けた放物面鏡である。この放物面
鏡２は内面が鏡面となっており、ランプ１の発光部（フ
イラメント位置）が焦点Ｆ’となっている。また、３は
ランプ１の前側に備えた投光レンズで、放物面鏡２に固
着されている。2. Description of the Related Art FIG. 5 shows a light source portion of a conventional illumination light of this type. Reference numeral 1 denotes a halogen lamp as a light source, which is connected to a light circuit for illumination (not shown). Reference numeral 2 is a parabolic mirror in which the lamp 1 is provided at the center of the inner bottom. The inner surface of the parabolic mirror 2 is a mirror surface, and the light emitting portion (filament position) of the lamp 1 is a focal point F ′. A projection lens 3 is provided on the front side of the lamp 1, and is fixed to the parabolic mirror 2.
【０００３】投光レンズ３は図６に示すように、同一の
焦点距離Ｆをもつ小形凸レンズ３ａを碁盤目状に配設し
て形成され、各凸レンズ３ａは長手方向と短手方向の長
さが、例えば、５：４の割合となっている。As shown in FIG. 6, the projection lens 3 is formed by arranging small convex lenses 3a having the same focal length F in a grid pattern, and each convex lens 3a has a length in a longitudinal direction and a length in a lateral direction. However, for example, the ratio is 5: 4.
【０００４】ランプ１を点灯させると、ランプ１の前部
１ａから出る光は投光レンズ３に直接入射し、凸レンズ
３ａによって拡散されて投光され、また、ランプ１の周
囲１ｂから出る光は放物面鏡２で反射して投光レンズ３
に入射し、凸レンズ３ａによって拡散されて投光され
る。そして、この投光によってビデオカメラの撮影範囲
を照明する。When the lamp 1 is turned on, the light emitted from the front portion 1a of the lamp 1 is directly incident on the light projecting lens 3, diffused by the convex lens 3a and projected, and the light emitted from the periphery 1b of the lamp 1 is emitted. Projecting lens 3 reflecting on parabolic mirror 2
Is incident on, is diffused by the convex lens 3a, and is projected. Then, the projection range illuminates the shooting range of the video camera.
【０００５】[0005]
【発明が解決しようとする課題】上記した従来の照明用
ライトは、投光レンズ３に設けられた小形凸レンズ３ａ
の照射角によって決まる一定の照明範囲となる。つま
り、小形凸レンズ３ａの作用によって照明光が絞られた
一定の照明範囲となるため、この種の照明用ライトとし
て実用的な効果が大きい。The conventional illumination light described above has a small convex lens 3a provided on the light projecting lens 3.
The illumination range is fixed depending on the irradiation angle of. In other words, the action of the small convex lens 3a results in a constant illumination range in which the illumination light is narrowed down, so that a practical effect as this type of illumination light is great.
【０００６】しかしながら、ビデオカメラ撮影では撮影
状況に合わせて照明範囲を変えることを望むことがあ
り、例えば、ビデオカメラのズ−ム撮影ではズ−ミング
に合わせて照明範囲を変えるようにすることが好ましい
が、上記した照明用ライトでは照射角が一定であるた
め、このようなビデオカメラ撮影の照明器として充分に
対応することができなかった。However, in video camera photography, it may be desired to change the illumination range according to the photography situation. For example, in zoom photography of a video camera, the illumination range may be changed in accordance with zooming. Although preferable, the illumination light described above cannot provide a sufficient illuminator for such video camera photography because the irradiation angle is constant.
【０００７】また、この照明用ライトは、ビデオカメラ
の撮影範囲全体を照明するものであるから、例えば、舞
台撮影等において撮影範囲の中の一部分にスポットを当
てて照明したい場合や、ビデオカメラの撮影方向を変え
ずに被写体を追って照明位置のみを移動させたい場合
等、この照明用ライトではそのような要求に応じられな
いという問題があった。Further, since this illumination light illuminates the entire photographing range of the video camera, for example, when it is desired to illuminate a part of the photographing range by illuminating a part of the photographing range in stage photographing, etc. This illumination light has a problem that such a request cannot be met, for example, when it is desired to move only the illumination position by following the subject without changing the shooting direction.
【０００８】本発明は、上記した実情にかんがみ、照射
角を変えて照明でき、また、撮影範囲の一部分にスポッ
トを当てた照明や、ビデオカメラの撮影方向を変えずに
照明位置のみを移動させることのできるこの種の照明用
ライトの開発を目的とする。In view of the above-mentioned situation, the present invention can illuminate by changing the irradiation angle, and can move only the illuminating position without changing the photographic direction of the video camera or the illuminating with a spot on a part of the photographic range. The purpose is to develop this type of illuminating light.
【０００９】[0009]
【課題を解決するための手段】上記した目的を達成する
ため、本発明では、光源を備えた放物面鏡の前側に、多
数の小形レンズを連続配設して構成した第１の投光レン
ズを備えると共に、この第１の投光レンズの前方に、第
１の投光レンズに対し小形レンズの配設構成を同様に設
けた第２の投光レンズを備え、上記第１、第２の投光レ
ンズのうちの一方の投光レンズを投光方向に移動自在に
構成したことを特徴とするビデオカメラの照明用ライト
を提案する。In order to achieve the above-mentioned object, the present invention provides a first light projection in which a large number of small lenses are continuously arranged in front of a parabolic mirror having a light source. In addition to the first light projecting lens, a second light projecting lens is also provided in front of the first light projecting lens, in which a small lens is similarly arranged with respect to the first light projecting lens. We propose an illumination light for a video camera, characterized in that one of the light projecting lenses is configured to be movable in the light projecting direction.
【００１０】また、上記した第１、第２の投光レンズの
うちの一方の投光レンズを上下、左右方向に移動自在に
構成したことを特徴とするビデオカメラの照明用ライト
を提案する。Further, there is proposed an illumination light for a video camera, characterized in that one of the first and second projection lenses described above is configured to be movable in the vertical and horizontal directions.
【００１１】[0011]
【作用】この照明用ライトは、一方の投光レンズが他方
の投光レンズの焦点位置にある場合に、光源の光がこれ
ら投光レンズを通して標準の照射角で投光する。In this illuminating light, when one light projecting lens is at the focal position of the other light projecting lens, the light from the light source projects through these light projecting lenses at a standard irradiation angle.
【００１２】一方の投光レンズを他方の投光レンズに対
して離す方向に移動させると、光が絞られて投光され、
撮影範囲の一部分をスポット的に照明することができ
る。When one of the light projecting lenses is moved away from the other light projecting lens, the light is focused and projected,
It is possible to illuminate a part of the shooting range like a spot.
【００１３】この逆に一方の投光レンズを他方の投光レ
ンズに対して近付ける方向に移動させれば、照射角が広
がり、広角で照明することができる。On the contrary, if one light projecting lens is moved toward the other light projecting lens, the irradiation angle is widened, and wide-angle illumination can be performed.
【００１４】さらに、この照明用ライトは、一方の投光
レンズを上下方向及び左右方向に移動させれば、投光レ
ンズの移動にしたがって投光方向が変わる。したがっ
て、ビデオカメラの撮影方向を変えずに照明部所のみを
移動させることができる。Further, in this illuminating light, if one of the light projecting lenses is moved in the vertical direction and the horizontal direction, the light projecting direction changes according to the movement of the light projecting lens. Therefore, only the illumination section can be moved without changing the shooting direction of the video camera.
【００１５】[0015]
【実施例】次に、本発明の実施例について図面に沿って
説明する。図１は本発明の第１実施例である照明用ライ
トの光源部を示す縦断面図である。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing a light source section of an illumination light which is a first embodiment of the present invention.
【００１６】この照明用ライトの光源部は従来例と同
様、光源にハロゲンランプ２１を使用し、このランプ２
１を放物面鏡２２の内底部中央に設け、前側には焦点距
離Ｆの複数の小形凸レンズ２３ａを碁盤目状に配設して
形成した第１の投光レンズ２３が設けてある。The light source of this illuminating light uses a halogen lamp 21 as the light source, as in the conventional example.
1 is provided at the center of the inner bottom portion of the parabolic mirror 22, and a first light projecting lens 23 formed by arranging a plurality of small convex lenses 23a having a focal length F in a grid pattern is provided on the front side.
【００１７】また、第１の投光レンズ２３の前方には、
第２の投光レンズが設けてある。この第２の投光レンズ
２４は、第１の投光レンズ２３の小形凸レンズ２３ａと
大きさ及び焦点距離において等しい小形凸レンズ２４ａ
を碁盤目状に配設して構成されている。In front of the first light projecting lens 23,
A second light projecting lens is provided. This second light projecting lens 24 is the same as the small projecting lens 23a of the first projecting lens 23 in size and focal length.
Are arranged in a grid pattern.
【００１８】第１の投光レンズ２３と第２の投光レンズ
２４とは平行させるように設け、小形凸レンズ２３ａ、
２４ａが各々対向するようになっている。The first light projecting lens 23 and the second light projecting lens 24 are provided so as to be parallel to each other, and the small convex lens 23a,
24a face each other.
【００１９】上記した２つの投光レンズ２３、２４のう
ち、第１の投光レンズ２３は放物面鏡２２の前側に固着
され、第２の投光レンズ２４は図１に示す範囲Ａ内にお
いて前後方向（投光光軸Ｚの方向）に移動可能に設けら
れている。Of the two light projecting lenses 23 and 24 described above, the first light projecting lens 23 is fixed to the front side of the parabolic mirror 22, and the second light projecting lens 24 is within the range A shown in FIG. In the front-back direction (direction of the light projection optical axis Z).
【００２０】第２の投光レンズ２４の移動手段について
は、手動操作によって行なうように構成することもで
き、また、小形モ−タを使用したレンズ駆動機構を備え
て構成することもできる。The moving means of the second light projecting lens 24 may be configured to be manually operated, or may be configured to include a lens driving mechanism using a small motor.
【００２１】上記した２つの投光レンズ２３、２４はズ
−ムレンズを構成している。つまり、第２の投光レンズ
２４が、図１に示すように第１の投光レンズ２３の小形
凸レンズ２３ａの焦点Ｆに位置しているときは、これら
投光レンズ２３、２４から投光される光が図２（Ａ）に
示す照射角θで拡散された光となり、標準投光となる。The above-mentioned two light projecting lenses 23 and 24 constitute a zoom lens. That is, when the second light projecting lens 24 is located at the focal point F of the small convex lens 23a of the first light projecting lens 23 as shown in FIG. 1, light is projected from these light projecting lenses 23, 24. 2A becomes the light diffused at the irradiation angle θ shown in FIG. 2A and becomes the standard projection.
【００２２】第２の投光レンズ２４を図１上においてＡ
１方向、すなわち、第１の投光レンズ２３より離す方向
に移動させると、投光レンズ２３、２４から投光される
光が図２（Ｂ）に示す照射角θ1で拡散され、θ＞θ1よ
り、この光は上記した標準光に対し集光した光となって
ＴＥＬＥの投光となる。The second projection lens 24 is shown as A in FIG.
When it is moved in one direction, that is, in the direction away from the first light projecting lens 23, the light projected from the light projecting lenses 23 and 24 is diffused at the irradiation angle θ 1 shown in FIG. From θ 1 , this light becomes light condensed with respect to the above-mentioned standard light and becomes the projection of TELE.
【００２３】また、第２の投光レンズ２４を図１上にお
いてＡ２方向、すなわち、第１の投光レンズ２３に近づ
ける方向に移動させると、投光レンズ２３、２４から投
光される光が図２（Ｃ）に示す照射角θ2で拡散された
光となり、θ＜θ2より、この光は標準光に対し拡角と
なったＷＩＤＥの投光となる。When the second light projecting lens 24 is moved in the direction A2 in FIG. 1, that is, in the direction approaching the first light projecting lens 23, the light projected from the light projecting lenses 23, 24 is changed. The light becomes the light diffused at the irradiation angle θ 2 shown in FIG. 2C, and from θ <θ 2 , this light becomes the projection of WIDE which has an expanded angle with respect to the standard light.
【００２４】第２の投光レンズ２４が図１に示す位置に
あるときに、ランプ２１を点灯させると、ランプ２１の
前部２１ａから出る光は第１の投光レンズ２３に直接入
射し小形凸レンズ２３ａの焦点Ｆに向かう。そして、第
２の投光レンズ２４に入射し、小形凸レンズ２４ａによ
って拡散されて投光される。When the lamp 21 is turned on when the second light projecting lens 24 is in the position shown in FIG. 1, the light emitted from the front portion 21a of the lamp 21 is directly incident on the first light projecting lens 23 and is small in size. It goes to the focal point F of the convex lens 23a. Then, the light enters the second light projecting lens 24, is diffused by the small convex lens 24a, and is projected.
【００２５】ランプ２１の周囲面２１ｂから出る光は放
物面鏡２２で反射し、投光光軸Ｚに平行な光となって投
光レンズ２３に入射し、小形凸レンズ２３ａの焦点Ｆに
向かう。焦点Ｆに向かった光は第２の投光レンズ２４に
入射し、小形凸レンズ２４ａによって拡散されて投光さ
れる。そして、この標準投光がビデオカメラの撮影範囲
を照明する。The light emitted from the peripheral surface 21b of the lamp 21 is reflected by the parabolic mirror 22, becomes light parallel to the projection optical axis Z, enters the projection lens 23, and goes to the focal point F of the small convex lens 23a. . The light directed to the focal point F enters the second light projecting lens 24 and is diffused and projected by the small convex lens 24a. Then, this standard projection illuminates the shooting range of the video camera.
【００２６】第２の投光レンズ２４を図１上においてＡ
１方向に移動させると、上記した標準投光に比べ集光さ
れ、ＴＥＬＥの投光となり撮影範囲を照明する。このよ
うな照明は、ビデオカメラの撮影範囲の一部分を集中的
に照らすので、スポット的な照明として利用することが
できる。The second light projecting lens 24 is indicated by A in FIG.
When it is moved in one direction, it is condensed as compared with the above-described standard projection, and becomes TELE projection to illuminate the photographing range. Since such an illumination intensively illuminates a part of the shooting range of the video camera, it can be used as spot-like illumination.
【００２７】また、第２の投光レンズ２４を図１上にお
いてＡ２方向に移動させると、上記した標準投光に比べ
拡角の投光となり、ＷＩＤＥの投光で撮影範囲を照明す
ることができる。Further, when the second light projecting lens 24 is moved in the A2 direction in FIG. 1, the projection angle is wider than that of the standard light projecting as described above, and the shooting range is illuminated by the WIDE light projecting. it can.
【００２８】上記した第１の投光レンズ２３、第２の投
光レンズ２４は、各々の小形凸レンズ２３ａ、２４ａを
異なる焦点距離をもつ凸レンズで形成してもよい。例え
ば、第１の投光レンズ２３は焦点距離Ｆをもつ小形凸レ
ンズ２３ａで上記同様に形成し、第２の投光レンズ２４
は焦点距離Ｆ１をもつ凸レンズで同様に形成する。な
お、この場合においても小形凸レンズの縦横の寸法は投
光レンズ２３、２４共に同一のものとする。In the first light projecting lens 23 and the second light projecting lens 24, the small convex lenses 23a, 24a may be formed by convex lenses having different focal lengths. For example, the first light projecting lens 23 is formed by a small convex lens 23a having a focal length F in the same manner as described above, and the second light projecting lens 24 is formed.
Is similarly formed by a convex lens having a focal length F1. Even in this case, the vertical and horizontal dimensions of the small convex lens are the same for both the light projecting lenses 23 and 24.
【００２９】また、第１の投光レンズ２３、第２の投光
レンズ２４は、各々を焦点距離の異なる２種類の小形凸
レンズで構成することもできる。図３は第１の投光レン
ズ２５を示したものであるが、第２の投光レンズ２６に
ついても同様な構成のものとなっている。Further, the first light projecting lens 23 and the second light projecting lens 24 may be composed of two types of small convex lenses having different focal lengths. Although FIG. 3 shows the first light projecting lens 25, the second light projecting lens 26 has a similar structure.
【００３０】第１の投光レンズ２５の周囲部に焦点Ｆを
もつ凸レンズ２５ａを配設し、また、ランプ２１の光が
直接入射する中央部に上記凸レンズ２５ａの焦点Ｆに比
べ距離の長い焦点Ｆ２をもつ凸レンズ２５ｂを配設して
投光レンズ２５を形成する。図示しない第２の投光レン
ズ２６についても同様に形成し、これら投光レンズ２
５、２６を図１に示す如く備えて照明用ライトを構成す
る。A convex lens 25a having a focal point F is arranged around the first light projecting lens 25, and a focal point having a longer distance than the focal point F of the convex lens 25a is provided in the central portion where the light of the lamp 21 is directly incident. The projecting lens 25 is formed by disposing the convex lens 25b having F2. The second light projecting lens 26 (not shown) is also formed in the same manner.
5 and 26 are provided as shown in FIG. 1 to form an illuminating light.
【００３１】次に、本発明の第２実施例について説明す
る。この第２実施例は、図１に示す光源部の第２の投光
レンズ２４を前後方向への移動だけでなく、上下方向及
び左右方向にも移動できるようにしたものである。な
お、その他の構成については第１実施例と同様のものと
なっている。Next, a second embodiment of the present invention will be described. In the second embodiment, the second light projecting lens 24 of the light source section shown in FIG. 1 can be moved not only in the front-rear direction but also in the up-down direction and the left-right direction. The rest of the configuration is similar to that of the first embodiment.
【００３２】図４に第１の投光レンズ２３と第２の投光
レンズ２４を構成する小形凸レンズ２３ａ、２４ａの光
学系図を示す。FIG. 4 shows an optical system diagram of small convex lenses 23a and 24a constituting the first light projecting lens 23 and the second light projecting lens 24.
【００３３】第２の投光レンズ２４を図１上においてＡ
１方向に移動した後、僅かに上方に移動させて対向配置
する小形凸レンズ２３ａ、２４ａを図４（Ａ）で示すよ
うな位置関係にすると、小形凸レンズ２４ａから投光さ
れる光の投光方向が斜め上向きとなり、焦点Ｆを通って
上方向き部分が集中的に照明される。The second light projecting lens 24 is indicated by A in FIG.
When the small convex lenses 23a and 24a, which are moved in one direction and then moved slightly upward to be opposed to each other, have a positional relationship as shown in FIG. 4A, the projection direction of the light projected from the small convex lens 24a. Is directed obliquely upward, and the upward facing portion is intensively illuminated through the focal point F.
【００３４】また、上記とは逆に、第２の投光レンズ２
４をＡ１位置において僅かに下方に移動させて小形凸レ
ンズ２３ａ、２４ａを図４（Ｂ）で示すような位置関係
にすると、小形凸レンズ２４ａから投光される光の投光
方向が斜め下向きとなり、焦点Ｆを通って下方向き部分
が集中的に照明される。このように、第２の投光レンズ
２４を僅か上下方向に動かすだけで照明用ライトの照明
方向を斜め上下方向に変えることができる。Contrary to the above, the second projection lens 2
4 is moved slightly downward at the A1 position to bring the small convex lenses 23a and 24a into a positional relationship as shown in FIG. 4B, the light projected from the small convex lens 24a is directed obliquely downward. The downwardly directed portion is intensively illuminated through the focal point F. In this way, the illumination direction of the illumination light can be changed diagonally to the vertical direction by moving the second light projecting lens 24 slightly in the vertical direction.
【００３５】同様に、上記したＡ１位置において、第２
の投光レンズ２４を図１上で僅かに奥方に移動させる
と、投光方向が斜め右方向となり、第２の投光レンズ２
４を僅か手前に移動させると、投光方向が斜め左方向と
なる。Similarly, at the A1 position described above, the second
When the light projecting lens 24 of FIG. 1 is moved slightly backward in FIG. 1, the light projecting direction becomes an oblique right direction, and the second light projecting lens 2
When 4 is moved slightly to the front, the light projection direction is diagonally leftward.
【００３６】なお、上記では第２の投光レンズ２４をＡ
１に移動させた後、このレンズ２４を上下、左右に移動
させた場合について説明したが、Ａの範囲で上下、左右
に移動させても同様に投光方向を変えることができる。In the above, the second projection lens 24 is set to A
The case where the lens 24 is moved up and down, left and right after being moved to 1 has been described, but the light projecting direction can be similarly changed by moving the lens 24 up and down and left and right within the range of A.
【００３７】上記した第２の投光レンズ２４の移動につ
いては、上下方向へ移動させる場合、小形凸レンズ２４
ａの縦寸法の長さを最大とし、左右方向へ移動させる場
合は、小形凸レンズ２４ａの横寸法の長さを最大とする
ことが好ましい。Regarding the above-mentioned movement of the second light projecting lens 24, when it is moved in the vertical direction, the small convex lens 24 is used.
When the length of the vertical dimension of a is maximized and the lens is moved in the left-right direction, it is preferable to maximize the length of the lateral dimension of the small convex lens 24a.
【００３８】このような照明用ライトは、特にスポット
照明に有効で、例えば、舞台撮影等において、ビデオカ
メラの撮影範囲を舞台全体に合わせておき、照明は舞台
の中の一部分である被写体を照明し、被写体の動きを追
って照明位置を移動させることができる。Such an illuminating light is particularly effective for spot lighting. For example, in stage shooting, the shooting range of the video camera is set to the entire stage, and the illumination illuminates a subject that is a part of the stage. However, the illumination position can be moved by following the movement of the subject.
【００３９】さらに、照明を上下方向に移動させること
ができるので、撮影する被写体と照明方向のずれ、いわ
ゆるパララックスを補正するのにも有効である。Further, since the illumination can be moved in the vertical direction, it is also effective for correcting a deviation between the subject to be photographed and the illumination direction, that is, so-called parallax.
【００４０】上記した第２実施例の２つの投光レンズ２
３、２４についても小形凸レンズ２３ａ、２４ａとを異
なる焦点距離のもので構成してもよい。Two light projecting lenses 2 of the second embodiment described above.
Also for 3 and 24, the small convex lenses 23a and 24a may have different focal lengths.
【００４１】上記した第１、第２実施例においては、第
２の投光レンズ２４を移動可能に構成したが、第２の投
光レンズ２４を固定し、第１の投光レンズ２３を移動さ
せるように構成することもできる。In the above-described first and second embodiments, the second light projecting lens 24 is configured to be movable, but the second light projecting lens 24 is fixed and the first light projecting lens 23 is moved. It is also possible to configure so as to allow it.
【００４２】[0042]
【発明の効果】上記した通り、本発明に係る照明用ライ
トは、光源の光を２つの投光レンズで投光すると共に、
これら２つの投光レンズのうち一方の投光レンズが投光
方向に移動自在となっているので、撮影範囲の照明にム
ラが少なく、また、一方の投光レンズを移動させて照射
角を変えることができるので、極めて利用範囲の広い照
明用ライトとなる。As described above, in the illumination light according to the present invention, the light from the light source is projected by the two projection lenses, and
Since one of the two light projecting lenses is movable in the light projecting direction, there is little unevenness in illumination in the photographing range, and one of the light projecting lenses is moved to change the irradiation angle. Therefore, it becomes an illumination light with a very wide range of use.
【００４３】また、一方の投光レンズを上下方向及び左
右方向に移動自在に構成すれば、ビデオカメラの撮影方
向を変えずに照明部所だけを移動させることができるの
で、撮影状況に合わせた照明や特殊撮影の照明などに極
めて便利な照明用ライトとなる。If one of the light projecting lenses is configured to be movable in the vertical direction and the horizontal direction, only the illuminating part can be moved without changing the shooting direction of the video camera. It is an extremely convenient lighting light for lighting and special shooting lighting.
【図１】本発明の第１実施例である照明用ライトの光源
部を示す縦断面図である。FIG. 1 is a vertical cross-sectional view showing a light source section of an illumination light which is a first embodiment of the present invention.
【図２】第１実施例の照明用ライトの照射角変化を２つ
の投光レンズの小形凸レンズで示した光学系図である。 （Ａ）図は標準投光状態を示す。 （Ｂ）図はＴＥＬＥの投光状態を示す。 （Ｃ）図はＷＩＤＥの投光状態を示す。FIG. 2 is an optical system diagram showing a change in irradiation angle of the illumination light of the first embodiment by using small convex lenses of two light projecting lenses. The figure (A) shows a standard projection state. FIG. 7B shows the TELE light projection state. FIG. 7C shows the WIDE projection state.
【図３】第１実施例の照明用ライトに用いる投光レンズ
の変形例を示す投光レンズの正面図である。FIG. 3 is a front view of a light projecting lens showing a modified example of the light projecting lens used in the illumination light of the first embodiment.
【図４】本発明の第２実施例を示し、照明用ライトの投
光方向の変化を２つの投光レンズの小形凸レンズで示し
た光学系図である。 （Ａ）図は投光レンズが斜め上方向に投光する状態を示
す。 （Ｂ）図は投光レンズが斜め下方向に投光する状態を示
す。FIG. 4 shows the second embodiment of the present invention, and is an optical system diagram in which changes in the projection direction of the illumination light are shown by the small convex lenses of the two projection lenses. FIG. 6A shows a state in which the light projecting lens projects light obliquely upward. FIG. 6B shows a state where the light projecting lens projects light obliquely downward.
【図５】従来例として示した照明用ライトの光源部を示
す縦断面図である。FIG. 5 is a vertical cross-sectional view showing a light source unit of an illumination light shown as a conventional example.
【図６】従来例の照明用ライトに備えられた投光レンズ
の正面図である。FIG. 6 is a front view of a light projecting lens included in a conventional illumination light.
２１ ハロゲンランプ ２２ 放物面鏡 ２３、２４ 投光レンズ ２３ａ、２４ａ 小形凸レンズ 21 Halogen lamp 22 Parabolic mirror 23, 24 Projection lens 23a, 24a Small convex lens
Claims (2)
小形レンズを連続配設して構成した第１の投光レンズを
備えると共に、この第１の投光レンズの前方に、第１の
投光レンズに対し小形レンズの配設構成を同様に設けた
第２の投光レンズを備え、上記第１、第２の投光レンズ
のうちの一方の投光レンズを投光方向に移動自在に構成
したことを特徴とするビデオカメラの照明用ライト。1. A first light projecting lens comprising a large number of small lenses arranged continuously in front of a parabolic mirror having a light source, and in front of the first light projecting lens, A second light projecting lens in which a small lens is similarly arranged to the first light projecting lens is provided, and one of the first and second light projecting lenses is projected in a light projecting direction. A light for illuminating a video camera, characterized by being configured so that it can be moved freely.
方の投光レンズを上下方向及び左右方向に移動自在に構
成したことを特徴とする請求項１記載のビデオカメラの
照明用ライト。2. The illumination of a video camera according to claim 1, wherein one of the first and second light projecting lenses is configured to be movable in a vertical direction and a horizontal direction. Light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304410A JP3068350B2 (en) | 1992-10-19 | 1992-10-19 | Video camera lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304410A JP3068350B2 (en) | 1992-10-19 | 1992-10-19 | Video camera lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06130467A true JPH06130467A (en) | 1994-05-13 |
| JP3068350B2 JP3068350B2 (en) | 2000-07-24 |
Family
ID=17932674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304410A Expired - Fee Related JP3068350B2 (en) | 1992-10-19 | 1992-10-19 | Video camera lighting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3068350B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008129301A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Optical member, strobe device equipped with optical member and image recorder incorporating strobe device |
| CN111765430A (en) * | 2019-04-02 | 2020-10-13 | 宁波舜宇车载光学技术有限公司 | Free-form surface-based light projection device and application thereof |
-
1992
- 1992-10-19 JP JP4304410A patent/JP3068350B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008129301A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Optical member, strobe device equipped with optical member and image recorder incorporating strobe device |
| CN111765430A (en) * | 2019-04-02 | 2020-10-13 | 宁波舜宇车载光学技术有限公司 | Free-form surface-based light projection device and application thereof |
| CN111765430B (en) * | 2019-04-02 | 2022-07-15 | 宁波舜宇车载光学技术有限公司 | Free-form surface-based light projection device and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3068350B2 (en) | 2000-07-24 |
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