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Infrared dome camera

A dome camera and video camera technology, applied in photography, cameras, camera bodies, etc., can solve the problems of whitening, affecting image quality, and excessive infrared light, and achieve the effect of wide application, excellent performance and ideal monitoring effect.

Inactive Publication Date: 2012-02-08
胡团 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a larger angle of infrared light is used to take care of close-range and wide-angle monitoring, more infrared light will be wasted
On the other hand, using a fixed-angle night vision infrared light source, when the lens of the infrared dome camera changes to a wide angle and is greater than the infrared light transmission angle, a "flashlight effect" will appear on the monitor screen, that is, a middle light will appear on the monitor screen. , The four corners are dark, and the center of the screen is overexposed and whitened, which affects the image quality

Method used

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Embodiment Construction

[0035] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be pointed out that the purpose of the drawings is only to facilitate the description of the specific embodiments of the present invention, and is not a redundant description or limitation to the scope of the present invention. Furthermore, the drawings are not necessarily drawn to scale.

[0036] Such as figure 1 As shown, the infrared dome camera 100 of the present invention includes a housing 1, a camera lens 2 installed in the housing 1, and an infrared lamp 3, wherein the infrared lamp is a zoom infrared lamp. The zoom infrared lamp 3 emits infrared light to the monitoring area, and the camera lens 2 receives the image information of the monitoring area, and displays the image on the monitoring screen (not shown) after processing. exist figure 1 In the illustrated embodiment, the camera lens 2 and the infrared lamp 3 are arranged sid...

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Abstract

The invention discloses an infrared dome camera, which comprises a shell, a camera lens used for receiving image information in a monitored area, and an infrared lamp used for emitting infrared light rays to the monitored area. The camera lens is arranged in the shell. The infrared lamp is arranged in the shell or externally hung outside the shell. The infrared lamp is a zooming infrared lamp, and comprises a light-emitting diode (LED) emission light source and a transmitting mirror group which is positioned in the infrared light emitting direction of the LED emission light source and has an optical zooming function. The infrared dome camera also comprises a controller which can synchronously control the light projecting angle of the zooming infrared lamp according to visual angle changes of the camera lens. The controller adjusts the light projecting angle of the zooming infrared lamp by adjusting relative positions of transmitting mirrors in the transmitting mirror group. Therefore, the infrared dome camera provided by the invention is more excellent in application performance and wider in range.

Description

【Technical field】 [0001] The invention relates to an infrared dome camera, in particular to an infrared dome camera with LED as a light source and infrared light transmission as a variable angle. 【Background technique】 [0002] At present, most of the night vision monitoring systems in the prior art adopt infrared camera technology. Infrared camera is divided into passive infrared camera and active infrared camera. Passive infrared photography uses the principle that any object emits infrared light above absolute zero (-273°C). Passive infrared does not emit infrared rays, but relies on the target's own infrared radiation to form a thermal image. The principle of active infrared camera is to use the infrared projection device to emit infrared light to the monitoring area, and the infrared light reflected back from the monitoring area is received by the camera device, after photoelectric conversion and circuit amplification comparison, corresponding signals are generated, a...

Claims

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Application Information

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IPC IPC(8): G03B15/05G03B17/12F21V14/06F21V14/04F21Y101/02
Inventor 胡团李锦泉
Owner 胡团
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