The utility model discloses an
infrared thermal imager of quick replacement lens and
optical filter, including casing and external lens subassembly. External lens subassembly is fixed through
screw thread connection in the outside of casing, contains lens fixing piece,
infrared lens, lens fixed ring, optical protection window and lens decoration ring.
Infrared lens is fixed in lens fixing piece through
screw thread, and the front end is equipped with detachable optical protection window (
optical filter or
germanium window), and is locked and fixed by lens decoration ring. Lens fixed ring and waterproof seal ring constitute double waterproof structure, ensure IP67 protection level. The device passes through modularization
screw thread connection design, makes the user can replace different specifications
infrared lens and optical protection window, adapts multiband observation demand. Its advantages include: simple operation, strong leakproofness, high environmental adaptability, especially suitable for the scene of flexible adjustment equipment such as
fire control, industrial detection etc.