Optometer

Details Optometer Optometer

2011-01-04

2011-01-04

Dinh, Jack (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Support

C351S216000, C351S233000

Reexamination Certificate

active

07862175

ABSTRACT:
An optometer for subjectively examining refractive power of an examinee's eye, comprises: a phoropter which selectively disposes an optical element in front of the examinee's eye; a controller having a switch panel for transmitting a signal to the phoropter and a horizontally extending rotation axis; a display rotatable about the rotation axis of the controller, orientation of the display being changeable by its rotation between a side with the switch panel and a side without the switch panel; and a control part which controls a display screen of the display to appear in a constant orientation irrespective of whether the display is reversed upside down by its rotation.

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