Camera viewfinder

A camera viewfinder comprising at least:

• an electronic display configured for displaying an image;
• a first mirror that reflects the image displayed by the electronic display, and
• a second mirror that reflects the image displayed by the electronic display and reflected by the first mirror,
• wherein at least one of the first mirror and second mirror is a free-form surface mirror that has a reflective surface formed as a free-form surface that has no continuous translation symmetry or rotational symmetry and which is not deformable,
• wherein at least one of a position and an orientation of the free-form surface mirror is adjustable during use of the camera viewfinder,
• wherein the free-form surface mirror is adjustable during use of the camera viewfinder in accordance with at least one of the following:
• a) the free-form surface mirror can be tilted about at least one axis;
• and
• b) the free-form surface mirror is movable in a translatory manner in at least one spatial direction so that the at least one free-form surface mirror is movable in a straight line along the at least one spatial direction.

A camera viewfinder of an electronic camera, comprising an electronic display apparatus that is configured for the display of images that are recorded by an image sensor of the electronic camera;

• and
• at least two mirrors for reflecting the images displayed by the display apparatus, of which at least one mirror is a free-form surface mirror whose reflective surface is formed as a free-form surface that has no continuous translation symmetry or rotational symmetry,
• wherein at least one of the free-form surface mirrors is adjustable during use of the electronic camera to at least partially compensate a vision defect of a user, and
• wherein the at least one of the free-form surface mirrors is not deformable.

A camera viewfinder (10) of an electronic camera, comprising

• an electronic display apparatus (12) that is configured for the display of images that are recorded by an image sensor of the electronic camera;
• and
• at least two mirrors (20, 22, 24) for reflecting the images displayed by the display apparatus (12), of which at least one mirror is a free-form surface mirror (20, 22, 24) whose reflective surface is formed as a free-form surface that has no continuous translation symmetry or rotational symmetry and which is not deformable,
• wherein at least one of the free-form surface mirrors (20, 22, 24) is adjustable during use of the electronic camera to at least partially compensate a vision defect of a user,
• wherein the at least one free-form surface mirror (20, 22, 24) is adjustable during use of the electronic camera in accordance with at least one of the following:
• a) the at least one adjustable free-form surface mirror (20, 22, 24) can be tilted about at least one axis;
• and
• b) the at least one adjustable free-form surface mirror (20, 22, 24) is movable in a translatory manner in at least one spatial direction so that the at least one free-form surface mirror is movable in a straight line along the at least one spatial direction,
• the camera viewfinder further comprising:
• a light source;
• a control and evaluation device that is configured to activate the light source to generate a punctiform light spot on the retina of the eye of the user;
• an optoelectronic receiver apparatus connected to the control and evaluation device for receiving light scattered back from the eye, with the control and evaluation device being configured to determine a degree of a vision defect of the user on the basis of the received light;
• and
• at least one electrically controllable actuator that is configured to adjust the at least one adjustable free-form surface mirror,
• wherein the control and evaluation device is configured to transmit a control command to the actuator on the basis of the determined degree of the vision defect of the user to adjust the at least one adjustable free-form surface mirror such that the determined vision defect is at least partially adjusted.