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Active infrared video camera

An infrared camera and active technology, applied in the field of infrared cameras, can solve the problems of high maintenance cost of lighting system, restrict development and application, short life, etc., achieve ideal monitoring effect, flexible change of light projection angle, and excellent performance. Effect

Inactive Publication Date: 2010-08-25
王尤山 +3
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AI Technical Summary

Problems solved by technology

However, due to its large size, short life and high maintenance costs of the lighting system as mentioned above, its further development and application are restricted.

Method used

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Embodiment Construction

[0050] 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.

[0051] As shown in Figure 1, the active infrared camera 100 of the present invention includes a light projection device 1 and a camera device 2, wherein the light projection device 1 emits infrared light to the monitoring area, and the camera device 2 receives the image information of the monitoring area, and after processing The image is then displayed on a monitor screen (not shown). Area A shown in FIG. 1 represents the projection angle of infrared light projected by the light projection device 1 , and region B represents the imaging angle of view of ...

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Abstract

The invention discloses an active infrared video camera, which comprises a light-projecting device (1) and a pick-up device (2). The light-projecting device (1) emits infrared rays to a monitored area, and the pick-up device (2) receives the image information of the monitored area. The light-projecting device (1) comprises an LED emission light source (10) and a transmitting mirror group (11) with the function of optically zooming, wherein the transmitting mirror group (11) comprises a plurality of lenses. The infrared rays emitted by the LED emission light source (10) irradiate the monitored area after passing through the transmitting mirror group (11). Therefore, the active infrared video camera (100) is more flexible and efficient, and can be more widely applied.

Description

【Technical field】 [0001] The invention relates to an infrared camera, in particular to an active infrared camera using LED as a light source. 【Background technique】 [0002] Night vision monitoring in the prior art all adopts infrared camera technology at present. Infrared cameras are divided into passive infrared cameras and active infrared cameras. Passive infrared cameras use the principle that any object emits infrared light above absolute zero (-273°C). Passive infrared does not emit infrared rays, but relies on the infrared radiation of the target itself to form a thermal image, so it is also called a thermal imager. However, thermal imagers are rarely used in night vision systems due to their high requirements on sensing technology, difficulty in manufacturing, and high cost. [0003] The principle of the active infrared camera is to use a light projection device to emit infrared light to the monitoring area, and the infrared light reflected back from the monitorin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B15/02G03B17/02H04N5/225G02B7/182F21V5/04F21V14/06F21Y101/02
Inventor 王尤山李锦泉李嘉穗李富峰
Owner 王尤山
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