Apparatus for sensory control of a person undergoing test

In an instrument for testing sensory control to determine the visual acuteness as well as the reflexes of a person, said instrument having:

• a. a focusing optical instrument with a defined object focus;
• b. a figure image device with figures including step-by-step parade means, supplying a step-by-step laterally moveable parade of figure images to the optical instrument on a rotating disc having figure supports thereon, motor means coupled to the disc to rotate the disc and speed reducing means coupled between the disc and the motor;
• c. electronic means and a command module coupled to said optical instrument and said figure image device, operating means to operate the command module by the person tested including a coin box coupled to said command module having starter means responsive to start when provided with at least one coin and reject means to reject incorrect coins;
• d. an energy feeding device coupled to the command module and the figure image device;
• and,
• e. a result display device coupled to the command module to display the results of the test;
• in combination:
• f. an eyepiece in said optical instrument near the object focus at which location there is support means to hold the figures to be seen, said eyepiece providing vertical images situated at a predetermined distance from the eye of the person whose senses are to be tested, said eyepiece being located between said support and location of the eye of the person being tested, such that the image focus coincides with the Helmholtz point of the schematic ametropic eye, and light means to light up the figures laterally moveable, fed by said energy feeding devices;
• g. a frosted glass in said optical instrument disposed between the light means and the figure support, said support being mounted on the step-by-step parade means and a transparent blade-like protection means with parallel faces disposed between the eye-piece and the eye location of the person tested;
• h. a display recorder of the test structurally coupled to the command module having a pre-printed paper roll turned by a motor, said roll being divided into successive frames defined by black band transverse limit means cooperating with an electrical photocell to indicate the start of the frame to the command module, each frame having at least two zones graduated in a scale of 1/10 to 10/10, each corresponding to the visual acuteness of the person tested and writing means, actuated by an electro-magnet to record the measurement of visual acuteness of the person tested when the command is given by the command module operated by the person, said writing means tracing a continuous curve on the face of the pre-printed paper roll as it unrolls, the interpretation of the curve opposite to one of the graduations of the roll defining the visual acuteness of the person tested;
• and,
• i. a frequency chronometer structurally coupled to the electronic command module so disposed as to measure the time lapse between the appearance of a given figure, designed to test the reflexes of the person tested and brake means coupled to the apparatus actuated by the person tested upon seeing said figure.