OPHTHALMIC MEASURING APPARATUS FOR REFLECTIVE POWER

PURPOSE:To facilitate the alignment in measurement by providing a receiving system with a magnification converting means. CONSTITUTION:In alignment, a pair of surfaces of a rectangular prism is vertical to an optical axis O. A light source 4 is extinguished and an observation lamp 23 is lit. The observation lamp 23 lights a front eye part of a person to be inspected and the condition of the front eye part is projected onto a photodetector 9 through an objective lens 8, a rectangular prism 15 and a relay lens 16. After the completion of the alignment, a measuring button is depressed to extinguish the observation lamp 23 and the light source 4 is lit. Moreover, the rectangular prism 15 turns by 45 deg.. Measuring light on sides of left and right eyes is magnified respectively via the rectangular prism 15, mirrors 19 and 21, right eye magnifying lenses 17 and 18, mirrors 20 and 22 and the relay lens 16 to be projected onto the photodetector 9. This enables the performing of an alignment work with a lower magnification thereby in no way disturbing the inputting of data during a measurement.