Display, instrument panel, optical system and optical instrument

摘要

A multiple depth display provided for displaying images at different depths comprises a single display device (61), for displaying all of the images. An optical system (62, 63, 64) is disposed in front of the display device (61). The optical system comprises first and second spaced-apart partial reflectors (62, 63) and polarization optics (64) for providing first and second light paths for first and second images or sequences of images displayed by the device (61). The first light path (65) comprises partial transmission through the first reflector (62), partial reflection from the second reflector (63), partial reflection from the first reflector (62), and partial transmission through the second reflector (65) towards a viewing region.

主权项

1. A display comprising a display device for modulating a first light with a first image or sequence of images and an optical system arranged to increase the perceived depth of the location of the first image or sequence, the optical system comprising first and second spaced-apart partial reflectors and providing a first light path for the first light from the device to a viewing region, the first light path comprising at least partial transmission through the first partial reflector towards the second partial reflector, at least partial reflection from the second partial reflector towards the first partial reflector, at least partial reflection from the first partial reflector towards the second partial reflector, and at least partial transmission through the second partial reflector towards the viewing region,
wherein the first and second partial reflectors comprise a partially transmissive mirror and a reflective linear polariser, respectively, and the optical system comprises a quarter wave plate disposed between the first and second partial reflectors and a patterned retarder or polarization rotator disposed between the first partial reflector and the device.