Phoropter and optometry device for testing an individual's eyes

An optometry device for testing an individual's eyes, comprising:

• a main casing;
• a phoropter configured to test the individual's eyes when observing a target along an optical path, the phoropter comprising:
• two optical units for the eyes of the individual that are mounted on the main casing, each having a housing that includes an entry on the target side and an exit aperture on the individual's side, and that houses an optical system to provide different vision correction powers to the corresponding eye of the individual,
• a moving mechanism comprising a slider upon which the two optical units are slidably mounted to allow for adjustment of a relative position between the two optical units,
• a partially reflecting mirror situated along the optical path, wherein the partially reflecting mirror is located upstream of the two optical units in the optical path along which light travels from the target to the individual's eyes, and
• an image acquiring device directed toward the partially reflecting mirror so as to acquire images of the eyes of the individual looking at the target through the two optical units;
• and
• a display device enclosed in the main casing and configured to produce the target, said target being visible through the exit apertures of the two optical units of said phoropter, the display device comprising:
• a first screen configured to display a test picture used in producing said target,
• a second screen configured to display a second picture, an image of the second picture being superimposed with said target at the exit apertures by way of a main partially reflecting mirror, and
• at least one optical element having an optical power, said optical element being movable between an active position in which the optical element is placed on an optical path of light emitted by said first screen and exiting the device through said exit apertures, and a retracted position in which the optical element remains out of said optical path, in order for the target to be produced at a variable distance from said exit apertures, wherein
• a single mirror support holds said main partially reflecting mirror and the partially reflecting mirror of said phoropter.