| 摘要 |
An ophthalmoscopical apparatus for carrying out aligning and/or spacing an eye examining instrument is disclosed. The apparatus includes a projection optical system disposed obliquely to the optical axis of the objective lens of the instrument. A beam of infrared light is projected from the projection optical system so as to form an image of indication at a position spaced from the objective lens by a predetermined distance. A beam reflected upon the anterior part of the subject eye is incident on the objective lens and focused on the light receiving surface of an image pick-up tube through an image transmitting system. Thus, an image of the reflected beam is displayed on a screen of cathode ray tube. The examiner adjusts the position of the instrument while observing the image on the cathode ray tube. The adjustment is made in the directions of up-and-down, left-and-right and for-and-back until the image of reflection on the cathode ray tube comes in a predetermined position.
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