CPC Subgroup
G02B 27/60 Systems using moiré fringes
Full Title
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 > Systems using moiré fringes
G02B 27/60 Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 > Systems using moiré fringes