FIELD: physics.
SUBSTANCE: apparatus has a composite substrate made from optical material, two diffraction elements lying on the first or second surface and placed with possibility of receiving an input optical beam, and two extra diffraction elements lying on the first or second surface of the substrate. The substrate has fist and second parts which can rotate relative each other about a line dividing said parts. At least part of the input optical beam undergoes diffraction on two diffraction elements to obtain two diffracted optical beams, and at least part of the diffracted optical beams then comes out of the composite substrate through diffraction on each of the said extra diffraction elements to obtain two essentially identical output optical beams with an expanded exit pupil.
EFFECT: easy use of the display.
34 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COLOUR DISTRIBUTION IN EXIT PUPIL EXPANDERS | 2006 |
|
RU2410736C2 |
| SYSTEM FOR EXPANDING THE AREA OF THE EXIT PUPIL OF THE VISUAL OPTICAL SYSTEM | 2019 |
|
RU2721670C1 |
| OPTICAL MODULE FOR AUGMENTED REALITY DEVICE BASED ON MODIFIED STRUCTURE OF LIGHT GUIDE PLATES WITH DIFFRACTIVE OPTICAL ELEMENTS | 2023 |
|
RU2809647C1 |
| AUGMENTED REALITY DEVICE BASED ON WAVEGUIDES WITH THE STRUCTURE OF HOLOGRAPHIC DIFFRACTION GRIDS, DEVICE FOR RECORDING THE STRUCTURE OF HOLOGRAPHIC DIFFRACTION GRIDS | 2020 |
|
RU2745540C1 |
| DEVICE FOR IDENTIFYING OPTICAL DIFFRACTION LABELS | 1998 |
|
RU2208248C2 |
| SPECTRAL DEVICE | 1996 |
|
RU2094758C1 |
| OPTICAL COMBINER BASED ON WAVEGUIDE FOR DISPLAYING AUGMENTED REALITY, METHOD OF OPERATING SAID OPTICAL COMBINER, AUGMENTED REALITY GLASSES BASED ON SAID OPTICAL COMBINER | 2024 |
|
RU2825552C1 |
| DEVICE FOR EXPANDING THE OPTICAL RADIATION BEAM FOR COHERENT ILLUMINATION WITH A SET OF LIGHT GUIDES WITH DICHROIC COATINGS | 2020 |
|
RU2757071C1 |
| SPECTROMETER HAVING INTERFERENTIAL SELECTIVE AMPLITUDE MODULATION | 0 |
|
SU979884A1 |
| FULLY THREE-DIMENSIONAL IMAGE DYNAMIC DISPLAY | 2017 |
|
RU2727853C1 |
