Terms containing principal points

Subject	English	French
earth.sc., life.sc.	collimated principal point	point principal d'autocollimation
cultur., life.sc.	conjugate principal point	point principal homologue
hobby, cultur.	principal focal point	foyer principal
rem.sens.	principal point	point central
tech.	principal point	point principal
rem.sens.	principal point method	méthode du point principal
rem.sens.	principal point radial	rayon du point principal
health.	principal point refraction	indice de réfraction axiale
earth.sc.	principal points	points principaux
earth.sc., life.sc.	principal points of a lens	points principaux d'une lentille
earth.sc.	transferred principal point	point-image conjugué
earth.sc.	transferred principal point	points homologues