LED light source packaging structure and outdoor monitoring camera

Abstract

The invention discloses an LED light source packaging structure and an outdoor monitoring camera, wherein an LED light source provides an auxiliary photographing light source for the outdoor monitoring camera, the packaging structure comprises a base station and an LED light-emitting chip arranged on the base station, the LED light-emitting chip is covered with a packaging lens formed by packagingsilica gel, the packaging lens is of an ellipsoid structure, and the light-emitting surface of the packaging lens is an ellipsoid surface; the LED light source with the structure can project an approximately rectangular light spot on a light receiving surface, and the imaging area of the monitoring camera is rectangular, so that light emitted by the LED light source can fall into the imaging areaas much as possible, the effective utilization rate of the light source is improved, and the power of an auxiliary illumination light source can be reduced; besides, the amount of light falling outside the imaging area is greatly reduced, so that the interference of reflected light of the ground outside the imaging area on the monitoring camera can be effectively reduced, and the imaging qualityis improved.

Description

technical field [0001] The invention relates to the technical field of camera auxiliary lighting, in particular to an LED light source packaging structure and an outdoor monitoring camera. Background technique [0002] Outdoor surveillance cameras are mainly used for automatic photo monitoring in a certain area. When the object to be monitored enters the monitoring area, it is sensed by the sensor on the camera, the camera starts to take pictures, and the captured photos are stored for viewing and analysis. Nowadays, outdoor surveillance cameras are widely used in animal protection and hunting industries. Since many animals are mainly nocturnal, the image quality of pictures captured by surveillance cameras at night is particularly important. [0003] At present, outdoor surveillance cameras mostly use infrared LEDs for auxiliary lighting when taking pictures at night. These LEDs are circular area lighting, which has two problems: (1) If Figure 5 As shown, the imaging area...

AI Technical Summary

Problems solved by technology

These LEDs are all circular area lighting, so there are two problems: (1) if Figure 5 As shown, the imaging area M0 of the surveillance camera is quadrilateral, and the illumination spot B0 provided by the light source L is circular, therefore, some light rays are bound to be projected outside the imaging area M0, resulting in energy loss; (2) because some light rays are projected to Outside the imaging area M0, especially when projected onto the ground in front of the surveillance camera, the reflected light from the ground returns to the lens, affecting the image quality

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