WO2010048754A1 - Led摄影灯 - Google Patents

Led摄影灯 Download PDF

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Publication number
WO2010048754A1
WO2010048754A1 PCT/CN2008/072877 CN2008072877W WO2010048754A1 WO 2010048754 A1 WO2010048754 A1 WO 2010048754A1 CN 2008072877 W CN2008072877 W CN 2008072877W WO 2010048754 A1 WO2010048754 A1 WO 2010048754A1
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WO
WIPO (PCT)
Prior art keywords
led
light
lamp
fresnel lens
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.)
Ceased
Application number
PCT/CN2008/072877
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English (en)
French (fr)
Inventor
詹小明
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Individual
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Individual
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Filing date
Publication date
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Priority to PCT/CN2008/072877 priority Critical patent/WO2010048754A1/zh
Publication of WO2010048754A1 publication Critical patent/WO2010048754A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene

Definitions

  • the utility model relates to the field of camera and photography lamps, and relates to an improved structure of an image lamp using LED as a light source.
  • LED light-emitting tube as a light source is low energy consumption, and photography and imaging are mostly fluid work. Therefore, as an artificial light source for imaging, it must be carried as a premise, and energy consumption is required to minimize power storage equipment. the weight of. Therefore, LEDs are well suited for applications in the field of camera illumination sources. The disadvantage is lower power and illuminance.
  • the technical problem to be solved by the present invention is to provide an improved structure of an LED image sensor, which uses a Fresnel lens to reduce light loss, uniform illumination, improve color rendering, and adjust illumination angle.
  • An improved structure of an LED video lamp comprising an insulating substrate, an LED lamp piece disposed on the insulating substrate, and a Fresnel lens disposed on the LED lamp piece.
  • the LED light piece is one or more, and the number of Fresnel lenses is correspondingly one or more.
  • the Fresnel lens and the lampshade are of a split type.
  • the front end of the camera light source uses a Fresnel lens. Under the same size and focal length, the Fresnel lens is much thinner than the convex lens, and the loss of light through the lens is small, at the same power. Down One step to improve the light output efficiency of the luminaire;
  • [12] Use the Fresnel lens optics to change the illumination angle of the LED light-emitting diode, fully collect the LE D light source, and project it evenly with the actual illumination angle requirement. It reduces light loss, uniform illumination, improves color rendering, and adjusts the illumination angle.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 1 is a schematic diagram of the structure of the utility model.
  • An LED video lamp comprising an LED lamp 1 , a Fresnel lens 2 , a lamp cover 3 , an insulating substrate 4 , a fixing plate 5 , and a front cover 6 .
  • the LED lamp piece 1 is disposed on the insulating substrate 4, and the LED lamp piece 1 is provided with a lamp cover 3 equipped with a Fresnel lens 2, the fixing plate 5 is used for fixing the Fresnel lens 2, and the outermost part is the lamp head structure and the video lamp.
  • the front cover 6 is fixed to the body.
  • the LED lamp pieces 1 are two, and the Fresnel lens 2 is also two, which is separate from the lamp cover 3, and the Fresnel lens 2 is mounted in the lamp cover 3.
  • the LED light sheet 1 may also be one or more, and the number of Fresnel lenses 2 is correspondingly one or more.
  • the utility model has the advantages that: the Fresnel lens is used in the front end of the image light source, and the illumination angle of the LED light-emitting diode is changed by using the Fresnel lens optical principle, and the light source of the LED is fully collected, and the actual illumination angle is used. The demand is evenly projected.
  • a single LED is a point source.
  • the LED crystal has an illumination angle of 120°.
  • the emitted light is more heavily scattered.
  • the concentrating effect of the Fresnel lens converges the light within the effective range to increase the light efficiency. , to improve the brightness effect.
  • the Fresnel lens has a fixed focal length with respect to a single lamp. When the distance between the LED and the lens is different, the angle of the emitted light can be arbitrarily set.
  • the Fresnel lens's ultra-thin structure makes the light transmittance much higher than that of a conventional convex lens, and its weight is smaller than that of a convex lens.
  • the Fresnel lens can reduce the spherical influence of the lens to a large extent because of the concentric lens group.
  • the emitted light is softer and the illuminance changes from the center point on the same light receiving plane. small.
  • a large number of LED crystals are concentrated in a small range, each crystal has a different distance from the lens, and a small pitch is formed to overlap, using a Fresnel lens.
  • a softer lighting effect can be obtained, so that the illuminated object can obtain a better illumination level transition.
  • Fresnel with different focal lengths and specifications can be selected. The lens, and the distance between the lens and the LED to determine the desired beam.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

说明书
LED摄影灯
【技术领域】
[I] 本实用新型涉及摄像、 摄影用灯领域， 是指一种用 LED为光源的摄像灯的改进 结构。
【背景技术】
[2] LED发光管作为光源的优点是耗能低， 而摄影与摄像多为流动性作业， 所以作 为摄像的人造光源必须以便于携带为前提， 且需耗能省， 以尽量减轻蓄电设备 的重量。 因此， LED非常适合在摄像照明光源领域里的应用。 缺点是功率和光照 度较低。
[3] 目前 LED作为摄影、 摄像灯的产品不多， 原因是光照度低， 一般利用凸透镜或 凹透镜来提高光强度， 但因为一般的凸透镜结构较厚有较大的球差及光损， 造 成光斑中心强， 四周弱， 影响图像效果。 若釆用高质量的透镜组则增加成本及 重量。
【实用新型内容】
[4] 本实用新型所要解决的技术问题在于提供一种 LED摄像灯的改进结构， 利用菲 涅尔透镜使其降低光损， 光照均匀， 提高显色性， 调节光照角度。
[5] 本实用新型釆用以下技术方案：
[6] 一种 LED摄像灯的改进结构， 包括绝缘基板、 设置在绝缘基板上的 LED灯片， 所述 LED灯片上设有菲涅尔透镜。
[7] 所述 LED灯片是一个或一个以上， 菲涅尔透镜的数量相应地也是一个或一个以 上。
[8] 还包括灯罩， 所述菲涅尔透镜由灯罩固定。
[9] 所述菲涅尔透镜与所述灯罩是分体式。
[10] 本实用新型的优点在于：
[I I] 1 . 摄像灯光源前端釆用了菲涅尔透镜， 利用在相同的尺寸和焦距的条件下， 菲涅尔透镜远比凸透镜厚度薄， 光经过透镜的损失小的优点， 在相同功率下进 一步提高灯具的光输出效率；
[12] 2. 利用菲涅尔透镜光学原理改变 LED发光二极管的光照角度， 充分地收集 LE D的光源， 并以实际的光照角度需求均匀投射。 使其降低光损， 光照均匀， 提高 显色性， 调节光照角度。
【附图说明】
[13] 下面参照附图结合实施例对本实用新型作一详细说明。
[14] 图 1是本实用新型结构示意图。
【具体实施方式】
[15] 请参阅图 1所示， 是本实用新型结构示意图。 一种 LED摄像灯， 包括 LED灯片 1 、 菲涅尔透镜 2、 灯罩 3、 绝缘基板 4、 固定板 5、 前盖 6。 LED灯片 1设置在绝缘基 板 4上， LED灯片 1上设有装有菲涅尔透镜 2的灯罩 3， 固定板 5用来固定菲涅尔透 镜 2， 最外面是将灯头结构与摄像灯机身固定为一体的前盖 6。
[16] 本实施例中 LED灯片 1是两个， 菲涅尔透镜 2也是两个， 与灯罩 3是分体式的， 菲涅尔透镜 2装设在灯罩 3中。
[17] LED灯片 1也可以是一个或一个以上， 菲涅尔透镜 2的数量相应地也是一个或一 个以上。
[18] 本实用新型的优点在于； 摄像灯光源前端釆用了菲涅尔透镜， 利用菲涅尔透镜 光学原理改变 LED发光二极管的光照角度， 充分地收集 LED的光源， 并以实际的 光照角度需求均匀投射。
[19] 单个 LED属点光源， 一般 LED晶体的发光角度为 120°， 发出的光线散射较严重 ， 利用菲涅尔透镜的聚光作用， 将光线会聚于有效使用范围内， 起到增加光效 ， 提高亮度的效果。 菲涅尔透镜相对于用一个灯， 焦距固定， 当 LED与透镜距离 不同吋， 可任意设定出射光角度。
[20] 菲涅尔透镜超薄的结构， 使光的透过率比传统凸透镜高的多， 其重量小于凸透 镜。 菲涅尔透镜与传透凸透镜对比， 由于其釆用同心圆的透镜组， 可较大程度 的减小透镜的球面影响， 出射光较为柔和， 且在同一受光平面上距中心点光照 度的变化量小。 对于高集成度的 LED灯片， 在较小的范围内集中了大数量的 LED 晶体， 每个晶体与透镜的距离不同， 形成小间距的光斑重叠， 使用菲涅尔透镜 比使用传透凸透镜得到的出射光可得到较为柔和的光照效果， 使被照物体得到 更好的光照层次过渡， 根据实际光照角度需求及壳体的尺寸， 选择制作不同焦 距及规格的菲涅尔透镜， 并确定透镜与 LED之间的距离来达到需要目的的光束。

Claims

权利要求书
[1] 1、 一种 LED摄像灯的改进结构， 包括绝缘基板、 设置在绝缘基板上的 LED 灯片， 其特征在于： 所述 LED灯片上设有菲涅尔透镜。
[2] 2、 如权利要求 1所述的一种 LED摄像灯的改进结构， 其特征在于： 所述 LE
D灯片是一个或一个以上， 菲涅尔透镜的数量相应地也是一个或一个以上
[3] 3、 如权利要求 1或 2所述的一种 LED摄像灯的改进结构， 其特征在于： 还包 括灯罩， 所述菲涅尔透镜由灯罩固定。
[4] 4、 如权利要求 3所述的一种 LED摄像灯的改进结构， 其特征在于： 所述菲 涅尔透镜与所述灯罩是分体式。
PCT/CN2008/072877 2008-10-30 2008-10-30 Led摄影灯 Ceased WO2010048754A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2008/072877 WO2010048754A1 (zh) 2008-10-30 2008-10-30 Led摄影灯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2008/072877 WO2010048754A1 (zh) 2008-10-30 2008-10-30 Led摄影灯

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110398871A (zh) * 2019-08-01 2019-11-01 厦门富莱仕影视器材有限公司 一种应用于摄影灯的光效调节装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536663A (zh) * 2003-04-04 2004-10-13 ˹̹�׵�����ʽ���� 拍摄照片用光源装置
JP2005024731A (ja) * 2003-06-30 2005-01-27 Casio Comput Co Ltd カメラ及びフラッシュ装置
CN1667313A (zh) * 2004-03-10 2005-09-14 西铁城电子股份有限公司 照明装置
CN201093376Y (zh) * 2007-10-26 2008-07-30 精碟科技股份有限公司 多晶封装led灯具
CN101253362A (zh) * 2005-08-10 2008-08-27 飞利浦拉米尔德斯照明设备有限责任公司 由多个管芯和具有多个透镜元件的光学系统组成的发光二极管

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536663A (zh) * 2003-04-04 2004-10-13 ˹̹�׵�����ʽ���� 拍摄照片用光源装置
JP2005024731A (ja) * 2003-06-30 2005-01-27 Casio Comput Co Ltd カメラ及びフラッシュ装置
CN1667313A (zh) * 2004-03-10 2005-09-14 西铁城电子股份有限公司 照明装置
CN101253362A (zh) * 2005-08-10 2008-08-27 飞利浦拉米尔德斯照明设备有限责任公司 由多个管芯和具有多个透镜元件的光学系统组成的发光二极管
CN201093376Y (zh) * 2007-10-26 2008-07-30 精碟科技股份有限公司 多晶封装led灯具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110398871A (zh) * 2019-08-01 2019-11-01 厦门富莱仕影视器材有限公司 一种应用于摄影灯的光效调节装置
CN110398871B (zh) * 2019-08-01 2024-04-12 厦门富莱仕影视器材有限公司 一种应用于摄影灯的光效调节装置

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