Dual -purpose wide angle of day night focuses plastic monitoring camera

The utility model discloses a dual -purpose wide angle of day night focuses plastic monitoring camera, including first lens, second lens, third lens and fourth lens, 4 lens all adopt the aspherical lens of plastic material, reduce and use lens quantity, effectively reduce camera lens weight and manufacturing cost, have improved the product competitiveness, and the positive negative focal length through each lens of optimal configuration, make the camera lens aberration proofreaied and correct effectively, it because of ambient temperature produces focus drift and the analytic bad problem of high low temperature, has increased the use occasion and the ambient condition scope of camera lens to have overcome the camera lens simultaneously, makes the utility model discloses the camera lens satisfies the function that day night is dual -purpose and the wide angle focuses.