Lamps with adjustable focal lengths

An adjustable and lighting technology, which is applied to the components of lighting devices, lighting devices, fixed lighting devices, etc., can solve the problem of inconvenient adjustment of the focal length of lamps, and achieve the effect of avoiding falling from high places

Inactive Publication Date: 2010-07-21
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a lamp that

Method used

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  • Lamps with adjustable focal lengths
  • Lamps with adjustable focal lengths
  • Lamps with adjustable focal lengths

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as figure 1 As shown, the lamp 100 of the present invention includes a shell 101 with one end open, and a light-transmitting member 102 connected to the open end of the shell 101 . The casing 101 and the light-transmitting member 102 jointly form a closed inner cavity 103 . In the inner cavity 103, a fixed light source 131, a reflector 105 that can move back and forth relative to the light source 131, and a focus adjustment device that drives the reflector 105 to move are provided.

[0033] Two parallel light source fixing plates 104 are arranged in the inner cavity 102, and a connect...

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Abstract

The invention relates to lamps with adjustable focal lengths, which comprise a shell and a light-transmitting piece which form an inner cavity commonly and a light source and a reflective piece which are arranged in the inner cavity, wherein a focal length adjusting device for driving the reflective piece to move forwards and backwards relative to the light source is also arranged in the inner cavity; the focal length adjusting device comprises a guiding element which is connected with the reflective piece and can make front and back linear motion, a motor fixedly connected with the guiding element, an eccentric wheel fixedly connected with a rotating shaft of the motor and an eccentric wheel positioning device which is fixedly connected with the shell and is provided with a positioning hole; and the eccentric wheel is in clearance fit with the positioning hole. Compared with the prior art, the lamps can adjust the focal lengths remotely; and the lamps are arranged at a higher position without climbing operation, so that the danger of falling from high positions is avoided.

Description

technical field [0001] The invention relates to a lamp, more specifically, to a lamp with adjustable focal length. Background technique [0002] As we all know, current lamps generally include a light source and a reflector arranged behind the light source. Part of the light emitted by the light source is reflected by the reflector and then emitted. Therefore, the position of the reflector relative to the light source can determine the irradiation range and brightness of the lamp. [0003] In different places or irradiation distances, lamps may be required to provide different irradiation ranges or brightness, which requires adjusting the position of the reflector relative to the light source, that is, adjusting the focal length of the lamp. In current lamps, it is generally necessary to manually adjust the focal length. For lamps used outside the cabin of low-speed aircraft or installed at high places, manually adjusting the focus may cause the risk of falling from high p...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V14/04
Inventor 周明杰吴会利
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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