| 摘要 |
An ophthalmological measuring apparatus having a laser-slit projector unit for projecting a laser beam on a portion in a human eyeball, a microscope unit adapted for receiving and observing the light reflected from the portion in the eyeball and a detector unit adapted for displaying the observing point in the eyeball projected by the laser beam. The microscope unit includes an objective optical system, an imaging optical system, a scattered light pickup prism disposed between the objective optical system and the imaging optical system and having a reflecting surface for diverging and directing a part of the reflected light, a beam splitter for superposing another optical axis parallel to the optical axis diverged by the prism on the optical axis of the imaging optical system, a converging optical system for receiving the diverged optical axis and the other optical axis parallel thereto, and an optical fiber having one end disposed adjacent to the focal plane of the converging optical system and movable up and down and right and left. The detector unit includes a photoelectric device directed to the other end of the optical fiber, a wavelength separating mirror disposed between the other end of the optical fiber and the photoelectric device, a light emitting diode disposed on the reflecting side of the mirror and adapted for emitting light having a wavelength different from that of the laser beam, and a right-to-left inverting optical system disposed between the beam splitter and the converging optical system. |
