Novel type infrared wide-angle lens

The utility model discloses a novel type infrared wide-angle lens, which comprises a lens cone, a first lens, a front spacing ring, a second lens, a second spacing ring and a bearing. The lens cone with a round shape is provided in a proper order with the first lens, the front spacing ring, the second lens and the second spacing ring. A convertible infrared filter is arranged behind the second spacing ring arranged at the back end of the internal wall of the lens cone. The open window of the bearing is provided with a light trap. Both the first lens and the second lens are made from PC resin material, which greatly reduces the manufacturing costs for the lens materials and makes the lens material more easily processed. The infrared wide-angle lens processed in this way has better optical performances. The introduction of a convertible infrared filter behind the second spacing ring can be changed for an infrared filter with an infrared band and an infrared filter with a visible spectrum band according to diffe