Azbil HPF-AU07 Micro-Spot Lens - Lens unit achieves micro-spot in combination with HPF-□□□□ coaxial diffuse scan type Fiber-optic fiber units. In HPF-LU0 switches, the internal wall of the lens has a special feature that keeps internal reflection to a minimum, so there is an increased amount of difference in light level when a workplace is actually present. The micro-spot lens is made of hard glass, so problems caused by a drop in light level due to lens scratches made by collisions with workpieces can be greatly reduced. The HPF-LU07 is ideal for Chip face/back discrimination when used in combination with the HPF-D034 coaxial diffuse scan Fiber-optic fiber unit and HPX-EG amplifier (sensing mode: nL3).