BS EN ISO 10938:1998

Ophthalmic instruments. Chart projectors. | Status: Revised, Superseded, Withdrawn

1 Scope This International Standard, together with ISO 15004, specifies minimum requirements and test methods for chart projector systems, including an optical projector and a screen, for the projection of targets used for the determination of visual acuity, the refractive status and the binocular functions of the human eye. This International Standard takes precedence over ISO 15004, if differences exist.