DEVICE FOR PROJECTING IMAGES IN A COLLIMATION STREAM (OPTIONS) Russian patent published in 2021 - IPC G09B9/08 

FIELD: optical instrument making.

SUBSTANCE: invention relates to the field of optical instrument making, in particular to mirror collimation devices for displaying objects. According to the first option, the device for projecting images in the collimation stream contains an image source and a concave spherical mirror. The optical axis of the device is located at the hypotenuse of the acute minimum angle between the optical axis of the image source and the optical axis of the user's eyes, while the image source is located at a distance of no more than the focal length in the area of the spherical mirror focus. The image source and the parabolic mirror are designed to be mounted on the surface of the user's desk. According to the second option, the device for projecting images in the collimation stream contains an image source and a concave spherical mirror. To reduce the dimensions of the device by means of additional elements, the optical axis of the spherical mirror is refracted by 90 degrees, while the distance from the image source, taking into account the refraction in the translucent mirror, corresponds to the mirror focal length. The case is made in the form of a helmet or glasses of virtual reality. A translucent mirror is used as an additional element.

EFFECT: invention provides a reduction in the size and weight of the device.

3 cl, 2 dwg