The invention concerns a holographic screen for the front laser projection of at least one or a plurality of laser wavelengths, said holographic screen selectively scattering back the incident spectrally narrow-band laser radiation in a predetermined solid angle and simultaneously absorbing intensely the disruptive spectrally broad-band ambient light. According to the invention, the holographic screen comprises at least one holographic volumetric grating (101, 102, 103) which is optically coupled to a light absorber (107).
申请公布号
DE19700162(A1)
申请公布日期
1998.07.16
申请号
DE1997100162
申请日期
1997.01.07
申请人
DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART, DE;HSM HOLOGRAPHIC SYSTEMS MUENCHEN GMBH, 85652 PLIENING, DE
