A lens meter including an illumination light source for illuminating a measurement target, a target projection optical system for projecting the measurement target onto an inspected lens, an observation optical system for observing a focused state of the projected target image and target moving device for moving the measurement target in an optical axis direction or the like to thereby measure a refracting power of the inspected lens on the basis of an amount in which the measurement target is moved in the optical axis direction. This lens meter includes a lens holder for holding the inspected lens substantially parallel to a plane on which the lens meter is installed, and a reflection system optical element for reflecting a measurement light passed through the inspected lens even times so that the measurement light is introduced into the observation optical system.
A progressive power lens (L) is illuminated with a collimated light beam through an illuminating optical system (2) comprising an LED (5), a pinhole plate (6), and a collimator lens (7). The shadow of the hidden mark of the progressive power lens (L) is projected onto a screen (4) by the light beam transmitted through the progressive power lens (L).
