Pick up with fingers and fit on objective lens. With that simple action, 99% of ambient light is shielded. Since the light is minimally shielded at a measurement point, you can freely scan a stage as shielding light. Big and obstacle light shielding cover is not necessary any more.
With metal shielding cover
|Shielding of ambient light||99%|
|Meterial||Chloroprene rubber sponge|
|Durability||More than 10000 times use|
DO NOT USE for preventing the laser light spread to the surroundings.