The principle of Fresnel mirrors consists in producing interference figures from a reflected laser beam, part of which is very slightly shifted with respect to the other one.
|Type of accessories||Stands|
Other SpecificationsMirrors: 1 fi xed and 1 mobile, dim. 31 x 48 mm.
Adjustment: by fi ne pitch screw of -4° to 6°.
Mount: anodised aluminium, mounted on rod Ø 10 mm.
Requires the use of a polarised laser.