JP2003163835A - Illumination device for photography - Google Patents
Illumination device for photographyInfo
- Publication number
- JP2003163835A JP2003163835A JP2001360914A JP2001360914A JP2003163835A JP 2003163835 A JP2003163835 A JP 2003163835A JP 2001360914 A JP2001360914 A JP 2001360914A JP 2001360914 A JP2001360914 A JP 2001360914A JP 2003163835 A JP2003163835 A JP 2003163835A
- Authority
- JP
- Japan
- Prior art keywords
- white
- light
- white leds
- leds
- light source
- 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
Links
Landscapes
- Studio Devices (AREA)
- Led Device Packages (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビデオカメラなど
の撮影時に被写体を照明する撮影用照明装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing illumination device for illuminating a subject when photographing with a video camera or the like.
【０００２】[0002]
【従来の技術】従来より、撮影用照明装置は、明るさが
足りない室内などで被写体を照明し、ビデオカメラ等で
の撮影が行なえるようにしている。この撮影用照明装置
の光源としてランプ（白熱電球）などが用いられている
が、寿命（１００時間程度）が短かったり、或いは消費
電力が大きかったりするため、代替の光源として発光ダ
イオード（ＬＥＤ）を用いることが考えられている。2. Description of the Related Art Conventionally, a photographing illumination device illuminates an object in a room where the brightness is insufficient so that a video camera or the like can perform photographing. Although a lamp (incandescent light bulb) or the like is used as a light source of this illuminating device for photography, a light emitting diode (LED) is used as an alternative light source due to its short life (about 100 hours) or large power consumption. It is considered to be used.
【０００３】このＬＥＤを発光体に使用する場合、例え
ば赤（Ｒ）、緑（Ｇ）、青（Ｂ）の３原色のＬＥＤの使
用比率を太陽に近い白色光が得られるように設定し、こ
の設定比率で原色のＬＥＤを多数配置して所定の照度の
白色光を得ることができる。これにより、寿命が半永久
的で消費電力も少ない撮影用照明装置の光源を得ること
ができる。When this LED is used as a light-emitting body, for example, the usage ratio of LEDs of three primary colors of red (R), green (G), and blue (B) is set so that white light close to the sun can be obtained, A large number of primary color LEDs can be arranged at this set ratio to obtain white light with a predetermined illuminance. This makes it possible to obtain a light source for a photographing illumination device that has a semi-permanent life and consumes less power.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記のような
３原色のＬＥＤを多数配置する構成では、撮影用照明装
置の形状が変わり、３原色のＬＥＤの配置を変更する際
に、色調と光量の両方を考慮して設計し直す必要があ
り、時間と手間がかかる。しかも、ＬＥＤの配置によっ
ては、ＬＥＤが疎らになって色斑が出てしまい、白色光
を作り出すのが非常に困難になる場合もある。However, in the configuration in which a large number of LEDs of the three primary colors are arranged as described above, the shape of the illuminating device for photographing changes, and when the arrangement of the LEDs of the three primary colors is changed, the color tone and the light quantity are changed. It is necessary to redesign considering both of them, which takes time and effort. In addition, depending on the arrangement of the LEDs, the LEDs may become sparse to cause color spots, and it may be very difficult to produce white light.
【０００５】本発明は、上述の如き従来の課題を解決す
るためになされたもので、その目的は、どのような形状
に発光素子を配置しても容易に所定の光学性能が得ら
れ、且つ光源の寿命が長く、消費電力が少ない撮影用照
明装置を提供することである。The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to easily obtain a predetermined optical performance regardless of the shape of the light emitting element. An object of the present invention is to provide a lighting device for photography, which has a long light source life and consumes less power.
【０００６】[0006]
【課題を解決するための手段】本発明の課題を解決する
請求項１の手段は、撮影装置で撮影する被写体を照明す
る撮影用照明装置において、複数の白色ＬＥＤと、これ
ら白色ＬＥＤから発生された光を透過させるフィルタ部
材とを具備することを特徴とする。According to a first aspect of the present invention, there is provided a photographing illumination device for illuminating an object to be photographed by a photographing device, wherein a plurality of white LEDs and white LEDs are generated. And a filter member for transmitting light.
【０００７】請求項２の手段は、前記請求項１におい
て、前記フィルタ部材は、前記白色ＬＥＤから発生され
た光が当該フィルタ部材を通過することにより、前記白
色ＬＥＤから発生された元の青みがかった光が太陽光に
近い白色の光になるような光学特性を有することを特徴
とする。According to a second aspect of the present invention, in the first aspect, the filter member has an original bluish color generated from the white LED when the light generated from the white LED passes through the filter member. It is characterized by having optical characteristics such that the light becomes white light close to sunlight.
【０００８】請求項３の手段は、前記請求項１又は２に
おいて、前記白色ＬＥＤを点灯させるための電源となる
電池を具備することを特徴とする。According to a third aspect of the present invention, in the first or second aspect, the means includes a battery serving as a power source for lighting the white LED.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は、本発明の撮影用照明装置
の一実施の形態に係る構成を示した正面図と断面図であ
る。図１（ａ）は正面図で、図１（ｂ）は断面図であ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view and a cross-sectional view showing a configuration according to an embodiment of a photographing illumination device of the present invention. FIG. 1A is a front view and FIG. 1B is a sectional view.
【００１０】本例の撮影用照明装置１はリング状をして
おり、真ん中の穴はカメラ（図示せず）へ装着するため
の装着穴２である。正面のリング部分には複数の白色Ｌ
ＥＤ３が円形に配置されている。これら白色ＬＥＤ３の
前面にはリング部分を覆うようにフィルタ４が取り付け
てある。また、白色ＬＥＤ３が配置されたリング部分の
上、下の背後部分には電池収納部５が形成されており、
この電池収納部５にライトの電源である電池６が収納さ
れている。The illuminating device 1 for photographing of the present example has a ring shape, and the hole in the middle is a mounting hole 2 for mounting on a camera (not shown). Multiple white L on the front ring
The ED3s are arranged in a circle. A filter 4 is attached to the front surface of these white LEDs 3 so as to cover the ring portion. In addition, a battery storage portion 5 is formed on the upper and lower rear portions of the ring portion where the white LEDs 3 are arranged,
A battery 6 which is a power source of the light is stored in the battery storage portion 5.
【００１１】図２は本例で用いた白色ＬＥＤ３のスペク
トル分布図である。実線１００は白色ＬＥＤ３のスペク
トル分布特性で、破線２０１、２０２、２０３は青、
緑、赤のＬＥＤのスペクトル分布特性である。この図か
ら分かるように、白色ＬＥＤ３といっても、青色付近に
ピークがあるため、点灯時の色調は青みがかっており、
このままでは、太陽光に近い白色光とは言えない。FIG. 2 is a spectrum distribution diagram of the white LED 3 used in this example. The solid line 100 is the spectral distribution characteristic of the white LED 3, the broken lines 201, 202 and 203 are blue,
It is a spectral distribution characteristic of green and red LEDs. As can be seen from this figure, even though the white LED 3 has a peak in the vicinity of blue, the color tone at the time of lighting is bluish,
As it is, it cannot be said that the white light is close to that of sunlight.
【００１２】そこで、本例はこれを是正するために、図
３に示すような透過特性を有するフィルタ４を用い、白
色ＬＥＤ３から発生された光をこのフィルタ４を通し
て、外部に照射するようにしている。図３から分かるよ
うに、フィルタ４の透過特性は青色付近の透過度合いが
低くなっているため、白色ＬＥＤ３から発生された光が
このフィルタ４を透過することにより、青色光が除去さ
れて太陽光に近い白色になる。Therefore, in this example, in order to correct this, a filter 4 having a transmission characteristic as shown in FIG. 3 is used, and light generated from the white LED 3 is radiated to the outside through the filter 4. There is. As can be seen from FIG. 3, the transmission characteristic of the filter 4 is such that the degree of transmission in the vicinity of blue is low. Therefore, the light generated from the white LED 3 is transmitted through this filter 4 so that the blue light is removed and the sunlight is removed. It becomes white close to.
【００１３】ここで、上記のような特性を持つフィルタ
４を製造するには、青色と補色関係にあるイエローをガ
ラスなどの透過部材に混ぜることにより製造することが
できるが、実際には、イエローの他に赤を混ぜて製造さ
れる。Here, in order to manufacture the filter 4 having the above characteristics, it is possible to manufacture it by mixing yellow, which has a complementary color relationship with blue, with a transmissive member such as glass. Manufactured by mixing red with red.
【００１４】上記の撮影用照明装置１は装着穴２を図示
されないビデオカメラの凸部に嵌合して、ビデオカメラ
に取り付ける。その後、ビデオカメラ撮影時、図示され
ない電源スイッチを押すことにより、電池６からの電源
が図示されない点灯回路に供給されて、白色ＬＥＤ３を
点灯させる。白色ＬＥＤ３により発生された光はフィル
タ４を通過することにより、太陽光に近い白色光になっ
て、被写体を照明する。The illuminating device 1 for photographing described above is mounted on the video camera by fitting the mounting hole 2 into the convex portion of the video camera (not shown). After that, at the time of shooting with a video camera, by pressing a power switch (not shown), power from the battery 6 is supplied to a lighting circuit (not shown) to turn on the white LED 3. The light generated by the white LED 3 passes through the filter 4 to become white light close to sunlight, and illuminates the subject.
【００１５】本実施の形態によれば、１種類の白色ＬＥ
Ｄ３を複数個配置し、これら白色ＬＥＤ３からの光をフ
ィルタ４に通すことにより、太陽光に近い白色光を得て
いる。それ故、白色ＬＥＤ３は所定の照度が得られよう
にその数を調整して配置すれば良く、色調を考慮する必
要がないので、撮影用照明装置１がどのような形状にな
っても、必要な光学性能を安定に得られる白色ＬＥＤ３
の配置が簡単であり、装置の設計及び製造を極めて容易
に行うことができる。According to the present embodiment, one type of white LE
By arranging a plurality of D3 and passing the light from these white LEDs 3 through the filter 4, white light close to sunlight is obtained. Therefore, the white LEDs 3 may be arranged by adjusting the number thereof so as to obtain a predetermined illuminance, and it is not necessary to consider the color tone. Therefore, it is necessary regardless of the shape of the photographing lighting device 1. White LED3 that can obtain stable optical performance
Is simple, and the design and manufacture of the device can be performed very easily.
【００１６】また、白色ＬＥＤ３の単価は現在、赤、緑
のＬＥＤのそれに比べて高価であるが、色斑を解消する
必要が無いため、少ない個数でも製品化が可能であり、
トータル的には装置を安価に製造することができる。Although the unit price of the white LED 3 is currently higher than that of the red and green LEDs, there is no need to eliminate the color spots, and therefore a small number of products can be commercialized.
The device can be manufactured inexpensively as a whole.
【００１７】さらに、白色ＬＥＤ３を用いるため、従来
のランプに比べてその寿命を著しく延ばすことができる
と共に、機械的強度を高めることができ、ヘビーな使用
を可能にすることができる。Further, since the white LED 3 is used, the life thereof can be remarkably extended as compared with the conventional lamp, the mechanical strength can be increased, and heavy use can be realized.
【００１８】また、白色ＬＥＤ３を複数個用いても、そ
の電力消費量は従来のランプに比べて半分程度にするこ
とができるため、電池６の寿命を延ばすことができる。Further, even if a plurality of white LEDs 3 are used, the power consumption thereof can be reduced to about half that of the conventional lamp, so that the life of the battery 6 can be extended.
【００１９】尚、本発明は上記実施の形態に限定される
ことなく、その要旨を逸脱しない範囲において、具体的
な構成、機能、作用、効果において、他の種々の形態に
よっても実施することができる。The present invention is not limited to the above-mentioned embodiments, and can be carried out in various other modes in specific configurations, functions, actions and effects without departing from the scope of the invention. it can.
【００２０】[0020]
【発明の効果】以上詳細に説明したように、本発明によ
れば、白色ＬＥＤと、この白色ＬＥＤから発生された光
を透過させるフィルタを用いることにより、どのような
形状に発光素子を配置しても容易に所定の光学性能が得
られ、且つ光源の寿命を長くでき、消費電力を低減する
ことができる。As described in detail above, according to the present invention, a light emitting element can be arranged in any shape by using a white LED and a filter that transmits the light generated from the white LED. However, the predetermined optical performance can be easily obtained, the life of the light source can be extended, and the power consumption can be reduced.
【図１】 本発明の撮影用照明装置の一実施の形態に係
る構成を示した正面図と断面図。FIG. 1 is a front view and a cross-sectional view showing a configuration according to an embodiment of a photographing illumination device of the present invention.
【図２】 図１に示した白色ＬＥＤのスペクトル分布
図。FIG. 2 is a spectrum distribution diagram of the white LED shown in FIG.
【図３】 図１に示したフィルタの透過特性図。FIG. 3 is a transmission characteristic diagram of the filter shown in FIG.
１、撮影用照明装置 ２、装着穴 ３、白色ＬＥＤ ４、フィルタ ５、電池収納部 ６、電池 1. Lighting device for photography 2, mounting hole 3, white LED 4, filter 5, battery compartment 6, battery
Claims (3)
影用照明装置において、 複数の白色ＬＥＤと、 これら白色ＬＥＤから発生された光を透過させるフィル
タ部材と、 を具備することを特徴とする撮影用照明装置。1. A photographing illumination device for illuminating an object photographed by a photographing device, comprising: a plurality of white LEDs; and a filter member for transmitting light generated from these white LEDs. Lighting equipment.
ら発生された光が当該フィルタ部材を通過することによ
り、前記白色ＬＥＤから発生された元の青みがかった光
が太陽光に近い白色の光になるような光学特性を有する
ことを特徴とする請求項１に記載の撮影用照明装置。2. In the filter member, the light emitted from the white LED passes through the filter member, so that the original bluish light emitted from the white LED becomes white light close to sunlight. The illuminating device for photographing according to claim 1, having the optical characteristics as described above.
となる電池を具備することを特徴とする請求項１又は２
に記載の撮影用照明装置。3. The battery according to claim 1, further comprising a battery serving as a power source for lighting the white LED.
The illuminating device for photography according to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001360914A JP2003163835A (en) | 2001-11-27 | 2001-11-27 | Illumination device for photography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001360914A JP2003163835A (en) | 2001-11-27 | 2001-11-27 | Illumination device for photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003163835A true JP2003163835A (en) | 2003-06-06 |
Family
ID=19171657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001360914A Pending JP2003163835A (en) | 2001-11-27 | 2001-11-27 | Illumination device for photography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003163835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006292793A (en) * | 2005-04-06 | 2006-10-26 | Sigma Corp | Lighting system |
| GB2434198A (en) * | 2004-04-07 | 2007-07-18 | Gekko Technology Ltd | Camera light frame and filter tray supporting member |
| US7290893B2 (en) | 2004-04-07 | 2007-11-06 | Gekko Technology Limited | Lighting apparatus |
-
2001
- 2001-11-27 JP JP2001360914A patent/JP2003163835A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2434198A (en) * | 2004-04-07 | 2007-07-18 | Gekko Technology Ltd | Camera light frame and filter tray supporting member |
| US7290893B2 (en) | 2004-04-07 | 2007-11-06 | Gekko Technology Limited | Lighting apparatus |
| GB2434198B (en) * | 2004-04-07 | 2008-04-16 | Gekko Technology Ltd | Lighting apparatus |
| US7690801B2 (en) | 2004-04-07 | 2010-04-06 | Gekko Technology Limited | Lighting apparatus |
| JP2006292793A (en) * | 2005-04-06 | 2006-10-26 | Sigma Corp | Lighting system |
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