JP2000089318A - Illuminator for camera - Google Patents
Illuminator for cameraInfo
- Publication number
- JP2000089318A JP2000089318A JP10260176A JP26017698A JP2000089318A JP 2000089318 A JP2000089318 A JP 2000089318A JP 10260176 A JP10260176 A JP 10260176A JP 26017698 A JP26017698 A JP 26017698A JP 2000089318 A JP2000089318 A JP 2000089318A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- camera
- emitting diode
- lighting device
- white light
- 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
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- Stroboscope Apparatuses (AREA)
- Studio Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビデオカメラやデ
ジタルスチルカメラで撮影を行う際に被写体を照明する
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for illuminating a subject when taking a picture with a video camera or a digital still camera.
【０００２】[0002]
【従来の技術】従来、例えばビデオカメラで撮影を行う
場合、照明が不足しているようなときには、ビデオライ
トと称されるカメラ用照明装置を用いて被写体の照明が
行われていた。しかし、このビデオライトは白熱電球に
より構成されているため、寿命が短く、また振動に弱い
という欠点があり、しばしば電球を交換しなければなら
ず手間および費用がかかる上、扱いを慎重にする必要が
あった。さらに、発光効率が悪く多量の発熱を伴うた
め、安全上、難燃性材料で筐体を形成し、熱が逃げやす
く、なおかつ人が高温部に触れないような形状設計とな
っていた。その結果、装置は大型で重いものとなり、し
かも過熱に対する保護回路も必要であるため、コスト高
となっていた。また、電球の背部には通常、凹面状の反
射板が設けられているため、この点でも、装置の大型化
やコストの上昇を招いていた。2. Description of the Related Art Heretofore, for example, when shooting with a video camera, when the illumination is insufficient, a subject is illuminated using a camera illumination device called a video light. However, this video light has the shortcomings of being short-lived and susceptible to vibration because it is composed of incandescent bulbs. was there. Further, since the luminous efficiency is low and a large amount of heat is generated, the casing is formed of a flame-retardant material for safety, and the shape is designed so that heat can easily escape and a person does not touch a high-temperature portion. As a result, the device becomes large and heavy, and a protection circuit against overheating is required, so that the cost is high. In addition, since a concave reflector is usually provided at the back of the bulb, this also leads to an increase in the size of the device and an increase in cost.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこのような問
題を解決するためになされたもので、その目的は、寿命
が長く、扱いが容易で、発熱もきわめて少ない小型軽量
のカメラ用照明装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a small and lightweight camera lighting device having a long life, easy handling, and extremely low heat generation. Is to provide.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記目的を達
成するため、撮影時に被写体を照明するカメラ用照明装
置であって、複数の白色発光ダイオードを含み、各白色
発光ダイオードをそれぞれの発光部をほぼ同一方向に向
け相互に近接して配列したことを特徴とする。すなわち
本発明のカメラ用照明装置は白色発光ダイオードを光源
としているので、従来の発熱電球を用いた照明装置と異
なり、寿命が長く、また振動にも強い。したがって、従
来のような電球交換の手間や費用はかからず、そして扱
いも容易である。さらに、発光効率が高く発熱が少ない
ため、筐体を特別の設計にする必要がなく、装置を小型
軽量に形成でき、保護回路も不要であるからコストダウ
ンを図ることができる。また、各発光ダイオードの前方
に、例えば各発光ダイオードごとに配置されるレンズ部
から成るレンズを配置して照明光を適切に集束あるいは
拡散させることができる。その場合には従来の反射板は
不要となるため、この点でも装置の小型化およびコスト
ダウンを実現できる。そして、反射板が不要であること
から、形状に関する自由度が増し、例えばカメラと一体
化した場合、カメラをカメラ用照明装置に左右されるこ
となく、デザイン性を重視した設計とできる。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a camera illuminating device for illuminating an object at the time of photographing, comprising a plurality of white light emitting diodes, each of which emits a respective light. The parts are oriented in substantially the same direction and arranged close to each other. That is, since the camera lighting device of the present invention uses a white light emitting diode as a light source, unlike a lighting device using a conventional heating bulb, it has a long life and is resistant to vibration. Therefore, replacement and replacement of the bulb as in the conventional case are not required, and the handling is easy. Further, since the luminous efficiency is high and the heat generation is small, it is not necessary to design the housing specially, the device can be formed small and lightweight, and the cost can be reduced because a protection circuit is not required. In addition, for example, a lens including a lens unit disposed for each light emitting diode is disposed in front of each light emitting diode, so that illumination light can be appropriately focused or diffused. In that case, since a conventional reflector is not required, the size and cost of the device can be reduced in this regard. Since a reflector is not required, the degree of freedom regarding the shape is increased. For example, when the camera is integrated with a camera, the camera can be designed with an emphasis on design without being affected by the camera lighting device.
【０００５】[0005]
【発明の実施の形態】次に本発明の実施の形態例につい
て図面を参照して説明する。図１は本発明によるカメラ
用照明装置の一例を示す断面図、図２は同要部正面図で
ある。本実施の形態例のカメラ用照明装置２は、一例と
して被写体を照明すべくビデオカメラの前方部に装着す
るカメラ用照明装置であって、図１、図２に示したよう
に、チップ型の複数の白色発光ダイオード４を含み、各
白色発光ダイオード４はそれぞれの発光部をほぼ同一方
向に向け相互に近接して千鳥に配列されている。各白色
発光ダイオード４は、印刷回路基板６上に搭載されて筐
体８内に収容されており、印刷回路基板６上に形成され
た不図示の電気回路を通じて相互に電気的に接続されて
いる。そして、この電気回路は、同じく印刷回路基板６
上に配設された不図示の電源端子に接続されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an example of a camera lighting device according to the present invention, and FIG. The camera lighting device 2 of the present embodiment is, for example, a camera lighting device mounted on a front portion of a video camera to illuminate a subject, and as shown in FIGS. A plurality of white light emitting diodes 4 are included, and the white light emitting diodes 4 are arranged in a staggered manner with their light emitting portions substantially in the same direction and close to each other. Each white light emitting diode 4 is mounted on a printed circuit board 6 and housed in a housing 8, and is electrically connected to each other through an electric circuit (not shown) formed on the printed circuit board 6. . And this electric circuit is also printed circuit board 6
It is connected to a power supply terminal (not shown) provided above.
【０００６】白色発光ダイオード４の前方には近接し
て、透明な合成樹脂により一体成形されたレンズ１０が
配置され、レンズ１０は各白色発光ダイオード４ごとに
各発光ダイオードの前方に配置されたレンズ部１２によ
り構成されている。レンズ１０の周辺部１４は、筐体８
の縁部１６に係合して支持されている。[0006] In front of the white light emitting diodes 4, a lens 10 integrally formed of a transparent synthetic resin is arranged in close proximity, and the lens 10 is disposed in front of each light emitting diode for each white light emitting diode 4. It is constituted by a unit 12. The peripheral portion 14 of the lens 10 is
And is supported by being engaged with the edge 16 of the second member.
【０００７】以上の構成において、上記電源端子を通じ
て各白色発光ダイオード４に電圧を印加すると、各白色
発光ダイオード４は発光し、図３の説明図に示したよう
に、それぞれの前方に光１８を放射する。この光１８
は、レンズ１０の対応する各レンズ部１２に入射して集
束され、ビデオカメラ前方の被写体を的確に照明する。
なお、レンズ１０の形状や、材質により、集束の程度は
種々に設定でき、ワイド照明やスポット照明を行えるよ
うにすることは容易である。また、光１８を拡散させる
ことも可能である。In the above configuration, when a voltage is applied to each white light emitting diode 4 through the power supply terminal, each white light emitting diode 4 emits light and, as shown in the explanatory diagram of FIG. Radiate. This light 18
Are incident on the corresponding lens units 12 of the lens 10 and are focused, thereby accurately illuminating the subject in front of the video camera.
The degree of convergence can be set variously depending on the shape and material of the lens 10, and it is easy to perform wide illumination and spot illumination. Further, the light 18 can be diffused.
【０００８】このように、本実施の形態例のカメラ用照
明装置２は白色発光ダイオード４を光源としているの
で、従来の発熱電球を用いた照明装置と異なり、寿命が
長く、また振動にも強い。したがって、従来のような電
球交換の手間や費用はかからず、そして扱いも容易であ
る。さらに、発光効率が高く発熱が少ないため、筐体８
を特別の設計にする必要がなく、装置を小型軽量に形成
でき、保護回路も不要であるからコストダウンを図るこ
とができる。また、光１８はレンズ１０によって集束あ
るいは拡散されるので、従来のように反射板を設ける必
要がなく、この点でも装置の小型化、特に薄型化および
コストダウンに有利である。そして、反射板が不要であ
ることから、形状に関する自由度が増し、例えばカメラ
と一体化した場合、カメラをカメラ用照明装置に左右さ
れることなく、デザイン性を重視した設計とできる。ま
た、発熱が少ないことからレンズ１０は上述のように合
成樹脂によって形成可能であり、低コスト化に有利であ
る。As described above, since the camera lighting device 2 of the present embodiment uses the white light emitting diode 4 as a light source, unlike a lighting device using a conventional heating bulb, it has a long life and is resistant to vibration. . Therefore, replacement and replacement of the bulb as in the conventional case are not required, and the handling is easy. Furthermore, since the luminous efficiency is high and the heat generation is small, the housing 8
Need not be specially designed, the device can be formed small and lightweight, and a protection circuit is not required, so that cost can be reduced. Further, since the light 18 is converged or diffused by the lens 10, there is no need to provide a reflecting plate as in the prior art, and this is also advantageous in reducing the size of the apparatus, particularly in reducing the thickness and cost. Since a reflector is not required, the degree of freedom regarding the shape is increased. For example, when the camera is integrated with a camera, the camera can be designed with an emphasis on design without being affected by the camera lighting device. Further, since the heat generation is small, the lens 10 can be formed of a synthetic resin as described above, which is advantageous for cost reduction.
【０００９】なお、本実施の形態例では白色発光ダイオ
ード４はチップ型であるとしたが、チップ型を用いる以
外にもディスクリート型の発光ダイオードを用いること
も無論可能であり、ディスクリート型の発光ダイオード
を、上述の場合と同様に配列して、本発明のカメラ用照
明装置を構成することができ、同様の効果を得ることが
できる。また、本実施の形態例では、白色発光ダイオー
ド４は千鳥に配列されているとしたが、配列の仕方は千
鳥に限らず自由である。また、平坦な基板上に配置する
代わりに例えば湾曲した基板上に白色発光ダイオード４
を配置することも可能である。Although the white light emitting diode 4 is of a chip type in this embodiment, it is of course possible to use a discrete light emitting diode in addition to the chip type. Can be arranged in the same manner as in the above case to constitute the camera lighting device of the present invention, and the same effects can be obtained. Further, in the present embodiment, the white light emitting diodes 4 are arranged in a staggered manner, but the arrangement is not limited to the staggered manner, and the arrangement is not limited. Further, instead of being arranged on a flat substrate, for example, a white light emitting diode 4 may be placed on a curved substrate.
Can also be arranged.
【００１０】次に、本発明の第２の実施の形態例につい
て説明する。図４は本発明の第２の実施の形態例を示す
要部平面図、図５は第２の実施の形態例の電気的構成を
示す概略回路図である。このカメラ用照明装置２０は、
図４、図５に示したように、一例としてディスクリート
型の複数の赤外線発光ダイオード２２をさらに含み、一
例としてディスクリート型の各白色発光ダイオード２４
および各赤外線発光ダイオード２２は混在してそれぞれ
の発光部をほぼ同一方向に向け相互に近接して配列され
ている。Next, a second embodiment of the present invention will be described. FIG. 4 is a plan view of a main part showing a second embodiment of the present invention, and FIG. 5 is a schematic circuit diagram showing an electrical configuration of the second embodiment. This camera lighting device 20
As shown in FIGS. 4 and 5, for example, a plurality of discrete-type infrared light emitting diodes 22 are further included, and for example, each of the discrete-type white light emitting diodes 24 is provided.
In addition, the infrared light emitting diodes 22 are arranged in close proximity to each other with the respective light emitting portions facing substantially in the same direction.
【００１１】図５に示したように、白色発光ダイオード
２４および赤外線発光ダイオード２２にはそれぞれ第１
および第２の電気回路２６、２８を通じて共通の電源端
子３０より電圧が供給され、第１および第２の電気回路
２６、２８と電源端子３０とは切り換えスイッチ３２に
より接続されて、切り換えスイッチ３２は、与えられた
制御信号３４にもとづいて第１および第２の電気回路２
６、２８のいずれか一方と電源端子３０とを接続する。As shown in FIG. 5, the white light emitting diode 24 and the infrared light emitting diode 22 each have a first light emitting diode.
A voltage is supplied from a common power supply terminal 30 through the first and second electric circuits 26 and 28, and the first and second electric circuits 26 and 28 and the power supply terminal 30 are connected by a changeover switch 32. , The first and second electric circuits 2 based on the applied control signal 34.
One of the power supply terminals 6 and 28 is connected to the power supply terminal 30.
【００１２】したがって、このカメラ用照明装置２０で
は、例えばビデオカメラ側から上記制御信号３４を与え
ることで、白色発光ダイオード２４および赤外線発光ダ
イオード２２のいずれかを切り換えて発光させることが
できる。その結果、被写体の可視光照明と赤外照明とを
１台の照明装置で行え、赤外照明に切り換えて夜間の撮
影も容易に行うことができる。なお、第２の実施の形態
例でも発光ダイオードとしてチップ型のものを用いるこ
とも無論可能である。また、本発明のカメラ用照明装置
は、ビデオカメラ以外にも例えばデジタルスチルカメラ
に用いることも有効である。Therefore, in the camera lighting device 20, for example, by giving the control signal 34 from the video camera side, either the white light emitting diode 24 or the infrared light emitting diode 22 can be switched to emit light. As a result, visible light illumination and infrared illumination of the subject can be performed by one illumination device, and night illumination can be easily performed by switching to infrared illumination. In the second embodiment, it is of course possible to use a chip-type light emitting diode. Further, the camera lighting device of the present invention is also effective to be used for, for example, a digital still camera other than the video camera.
【００１３】[0013]
【発明の効果】以上説明したように本発明は、撮影時に
被写体を照明するカメラ用照明装置であって、複数の白
色発光ダイオードを含み、各白色発光ダイオードをそれ
ぞれの発光部をほぼ同一方向に向け相互に近接して配列
したことを特徴とする。すなわち本発明のカメラ用照明
装置は白色発光ダイオードを光源としているので、従来
の発熱電球を用いた照明装置と異なり、寿命が長く、ま
た振動にも強い。したがって、従来のような電球交換の
手間や費用はかからず、そして扱いも容易である。さら
に、発光効率が高く発熱が少ないため、筐体を特別の設
計にする必要がなく、装置を小型軽量に形成でき、保護
回路も不要であるからコストダウンを図ることができ
る。また、各発光ダイオードの前方に、例えば各発光ダ
イオードごとに配置されるレンズ部から成るレンズを配
置して照明光を適切に集束あるいは拡散させることがで
きる。その場合には従来の反射板は不要となるため、こ
の点でも装置の小型化およびコストダウンを実現でき
る。そして、反射板が不要であることから、形状に関す
る自由度が増し、例えばカメラと一体化した場合、カメ
ラをカメラ用照明装置に左右されることなく、デザイン
性を重視した設計とできる。As described above, the present invention relates to a camera illuminating device for illuminating a subject at the time of photographing, which includes a plurality of white light emitting diodes, and arranges each of the white light emitting diodes in substantially the same direction. Characterized in that they are arranged close to each other. That is, since the camera lighting device of the present invention uses a white light emitting diode as a light source, unlike a lighting device using a conventional heating bulb, it has a long life and is resistant to vibration. Therefore, replacement and replacement of the bulb as in the conventional case are not required, and the handling is easy. Further, since the luminous efficiency is high and the heat generation is small, it is not necessary to design the housing specially, the device can be formed small and lightweight, and the cost can be reduced because a protection circuit is not required. In addition, for example, a lens including a lens unit disposed for each light emitting diode is disposed in front of each light emitting diode, so that illumination light can be appropriately focused or diffused. In that case, since a conventional reflector is not required, the size and cost of the device can be reduced in this regard. Since a reflector is not required, the degree of freedom regarding the shape is increased. For example, when the camera is integrated with a camera, the camera can be designed with an emphasis on design without being affected by the camera lighting device.
【図１】本発明によるカメラ用照明装置の一例を示す断
面図である。FIG. 1 is a sectional view showing an example of a camera lighting device according to the present invention.
【図２】本発明によるカメラ用照明装置の一例を示す要
部正面図である。FIG. 2 is a main part front view showing an example of a camera lighting device according to the present invention.
【図３】レンズの作用を示す説明図である。FIG. 3 is an explanatory diagram showing an operation of a lens.
【図４】本発明の第２の実施の形態例を示す要部平面図
である。FIG. 4 is a main part plan view showing a second embodiment of the present invention.
【図５】第２の実施の形態例の電気的構成を示す概略回
路図である。FIG. 5 is a schematic circuit diagram showing an electrical configuration of a second embodiment.
２……カメラ用照明装置、４……白色発光ダイオード、
６……印刷回路基板、８……筐体、１０……レンズ、１
２……レンズ部、１４……周辺部、１６……縁部、１８
……光、２０……カメラ用照明装置、２２……赤外線発
光ダイオード、２４……白色発光ダイオード、２６……
第１の電気回路、２８……第２の電気回路、３０……電
源端子、３２……スイッチ、３４……制御信号。2 ... lighting device for camera, 4 ... white light emitting diode,
6 ... printed circuit board, 8 ... housing, 10 ... lens, 1
2 ... lens part, 14 ... peripheral part, 16 ... edge part, 18
... Light, 20 illuminating device for camera, 22 infrared light emitting diode, 24 white light emitting diode, 26
1st electric circuit, 28 ... 2nd electric circuit, 30 ... power supply terminal, 32 ... switch, 34 ... control signal.
Claims (10)
装置であって、 複数の白色発光ダイオードを含み、各白色発光ダイオー
ドをそれぞれの発光部をほぼ同一方向に向け相互に近接
して配列した、 ことを特徴とするカメラ用照明装置。1. A lighting device for a camera for illuminating a subject at the time of photographing, comprising a plurality of white light emitting diodes, wherein each white light emitting diode is arranged close to each other with their light emitting portions oriented substantially in the same direction. An illumination device for a camera, comprising:
み、各白色発光ダイオードおよび各赤外線発光ダイオー
ドをそれぞれの発光部をほぼ同一方向に向け相互に近接
して配列したことを特徴とする請求項１記載のカメラ用
照明装置。2. The light emitting device according to claim 1, further comprising a plurality of infrared light emitting diodes, wherein each of the white light emitting diodes and each of the infrared light emitting diodes are arranged close to each other with their light emitting portions oriented substantially in the same direction. Lighting equipment for cameras.
され、各発光ダイオードは前記印刷回路基板上に形成さ
れた電気回路を通じて相互に接続されていることを特徴
とする請求項１記載のカメラ用照明装置。3. The camera according to claim 1, wherein the light emitting diodes are mounted on a printed circuit board, and the light emitting diodes are interconnected through an electric circuit formed on the printed circuit board. Lighting equipment.
線発光ダイオードは混在して配列されていることを特徴
とする請求項２記載のカメラ用照明装置。4. The camera lighting device according to claim 2, wherein the white light emitting diode and the infrared light emitting diode are arranged in a mixed manner.
線発光ダイオードにはそれぞれ第１および第２の電気回
路を通じて共通の電源端子より電圧が印加され、前記第
１および第２の電気回路と前記電源端子とは切り換えス
イッチにより接続され、前記切り換えスイッチは前記第
１および第２の電気回路のいずれか一方と前記電源端子
とを切り換えて接続することを特徴とする請求項２記載
のカメラ用照明装置。5. A voltage is applied to the white light emitting diode and the infrared light emitting diode from a common power supply terminal through first and second electric circuits, respectively, and the first and second electric circuits are connected to the power supply terminal. 3. The camera lighting device according to claim 2, wherein the switch is connected by a changeover switch, and the changeover switch switches and connects one of the first and second electric circuits to the power supply terminal. 4.
レンズを含むことを特徴とする請求項１記載のカメラ用
照明装置。6. The lighting device for a camera according to claim 1, further comprising a lens disposed in front of the light emitting diode.
発光ダイオードの前方に配置されるレンズ部により構成
されていることを特徴とする請求項６記載のカメラ用照
明装置。7. The lighting device for a camera according to claim 6, wherein the lens is constituted by a lens portion disposed in front of each light emitting diode for each light emitting diode.
成形されていることを特徴とする請求項７記載のカメラ
用照明装置。8. The illumination device for a camera according to claim 7, wherein the lens is integrally formed of a transparent synthetic resin.
またはチップ型の発光ダイオードであることを特徴とす
る請求項１記載のカメラ用照明装置。9. The camera lighting device according to claim 1, wherein the light emitting diode is a discrete or chip type light emitting diode.
メラに装着されたことを特徴とする請求項１記載のカメ
ラ用照明装置。10. The camera lighting device according to claim 1, wherein the lighting device is mounted on a video camera or a digital still camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10260176A JP2000089318A (en) | 1998-09-14 | 1998-09-14 | Illuminator for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10260176A JP2000089318A (en) | 1998-09-14 | 1998-09-14 | Illuminator for camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000089318A true JP2000089318A (en) | 2000-03-31 |
Family
ID=17344386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10260176A Pending JP2000089318A (en) | 1998-09-14 | 1998-09-14 | Illuminator for camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000089318A (en) |
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| WO2003087928A1 (en) * | 2002-04-12 | 2003-10-23 | Mitsubishi Denki Kabushiki Kaisha | Imaging apparatus |
| JP2003338973A (en) * | 2002-03-15 | 2003-11-28 | Sharp Corp | Portable device having imaging function |
| JP2004185018A (en) * | 2002-03-15 | 2004-07-02 | Sharp Corp | Portable apparatus with photographing function |
| JP2005114924A (en) * | 2003-10-06 | 2005-04-28 | Pentax Corp | Illuminator for photography |
| WO2006095609A1 (en) * | 2005-03-10 | 2006-09-14 | Citizen Electronics Co., Ltd. | Lighting device |
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