Motor-driven subjective phorometer

Details Motor-driven subjective phorometer Motor-driven subjective phorometer

1983-06-01

1985-08-27

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

A61B 302

Patent

active

045374805

ABSTRACT:
A new subjective phorometer which can be a desk-type one in which all the measuring means are set on the desk plate and all the procedures for measuring vision data of eyes are carried out by control switches on the desk, and all the data measured are displayed digitally on a monitor, and printed out.
The subjective phorometer comprises (1) the same measuring elements as conventional subjective phorometers, (2) a number of pulse motors, electro-magnetic clutches having a double-shafts mechanism, and direct current motors for driving the measuring elements and a number of sensors for detecting the zero position of the measuring elements, (3) a central processing unit and control switches for control driving of the pulse-motors, electro-magnetic clutches, and direct current motors, and (4) a monitor for displaying digitally the vision data measured, and (5) a printer for printing the data.

REFERENCES:
patent: 3969020 (1976-07-01), Lynn et al.
patent: 4192582 (1980-03-01), Aoki et al.
patent: 4385813 (1983-05-01), Klein et al.
patent: 4436390 (1984-03-01), Aoki

Affiliated with

Also associated with

Rating

Motor-driven subjective phorometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor-driven subjective phorometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-driven subjective phorometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1999405