Full text loading...
Schematic structure of the R-LCD/TR-LCD. (a) The multidirectional diffractive reflector composed of 25 microgratings. (b) Conventional bumpy reflector. (c) Measurement configuration of the angular distribution of reflected light. The size of the reflector is .
(a) Configuration of diffractive reflector under specula illumination ( and ). (b) Rhombus shape angular distribution of reflected light in a polar coordinate system under specula illumination. (c) Grating periods normalized with incident wavelength and rotation angles of each micrograting.
Characteristics of the multidirectional diffractive reflector. (a) Periods of 25 gratings. (b) Theoretical result of diffraction efficiencies of gratings of the rhombus distribution. The diffraction efficiency is an averaged result with respect to TE and TM polarizations. The simulation results of the different periods of the gratings are shown.
Measurement of angular distribution of reflection under specula illumination ( and ) with red color filter: (a) measurement result and (b) simulation result. . The simulation is shown right-half of the distribution because of symmetric characteristics. The simulation results of the different periods of the gratings are shown.
Measurements of the angular distribution of reflection under diffusive illumination conditions (, and ) (a) Multidirectional diffractive reflector. (b) Conventional bumpy reflector.
Reflectance normalized to the white standard reflector in the lateral viewing direction.
Article metrics loading...