What is an easy job to make clear line measurement under night vision? It is not easy to reach with simple manual line drawing device, however, it makes an easy job after the use of Berlinlasers 980nm infrared line laser alignment. It emits invisible infrared laser beam directly from 980nm infrared laser diode. Inside its 16mm and 26mm diameter metal housing tube, this IR laser line generator leaves enough space for tube cooling down. It is just assuring superior nice thermal emitting and highly stable IR line projection, but also keeping good performance under any other mechanical moving or shocking etc.  This 980nm infrared line laser alignment enables high linear quality infrared line projection from qualified optic lens. It is equipping with qualified glass coated lens or separate crystal lens. When it gets different fan angles of 10 degree to 110 degree, after production of various IR line lengths and line finenesses, it makes easy and highly precise IR line positioning results for those of night version measuring work fields. Only if compact size tube made IR laser line module gets proper installation and adjustment of laser beam focus, it makes no mistake and no barrier IR line alignment perfectly.  Technical data: Item: Berlinlasers 980nm infrared line laser alignment Output power: 100mW-500mW Laser class: IIIB, IV Optic lens: 10-110 degree glass coated lens, separate crystal lens Adjustable focus: yes Power source: 5V, 9V 1000mA DC power supply Application: infrared laser sight, military targeting, laser medical therapy device, and night hunting work etc