Regulating focus in accordance with relationship of features of a person's eyes

A method of providing an at least partially in-focus image of a feature at which a person is gazing, comprising the steps of:

• (a) using variable-focus means to provide an image of the feature on a display screen;
• (b) indicating a spatial relationship of features of the person's eyes;
• and
• (c) regulating the variable-focus means in accordance with the indicated relationship.

A system, comprising a computer for generating left-eye-image components and right-eye-image components,

• a display screen for displaying said computer-generated image components,
• goggles for enabling a person gazing at the display screen through the goggles to view three-dimensional images having virtual features that respectively appear to be at different distances from said person,
• means for indicating a spatial relationship of features of the person's eyes;
• and
• means for regulating the goggles in accordance with the indicated relationship to provide said three-dimensional images to the person wearing the goggles.

A system, comprising

• a display monitor that perceptually simultaneously displays images of different features with different degrees of focus as though they were at different distances from a person viewing the monitor and gazing at one of said displayed features,
• means for indicating a spatial relationship of features of the person's eyes;
• and
• means for regulating the display monitor in accordance with the indicated relationship to display an at least partially in-focus image of the feature at which the person is gazing.

A system, comprising a remotely controlled device that produces and transmits to a television monitor a signal for causing the monitor to display an at least partially in-focus image of a feature at which a person viewing the monitor is gazing;

• variable-focus means embodied in the remotely controlled device for providing an image of the feature from which said transmitted signal is produced;
• means for indicating a spatial relationship of features of the person's eyes;
• and
• means for regulating the variable-focus means in accordance with the indicated relationship.

A system, comprising

• a camera having a focal plane and a view finder;
• variable-focus means embodied in the camera for providing an at least partially in-focus image of a feature at which a person is gazing through the view finder;
• means for indicating a spatial relationship of features of the person's eyes;
• and
• means for regulating the variable-focus means in accordance with the indicated relationship to provide at the focal plane of the camera the at least partially in-focus image of the feature at which the person is gazing through the view finder of the camera.