178669 ⎘
Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto; Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique; Nature of the sub-holograms Mixed volume and surface relief holograms
Multi-layer body and method for the production thereof
#2Method and master for producing a volume hologram
#3Multi-layer body and method for the production thereof
#4Surface relief volume reflective diffractive structure
#5Security elements and method for their manufacture
#6Security element and method for producing a security element
#7Multi-spectral holographic security marker, method for its manufacture and holographic security system
#8Surface relief volume reflective diffractive structure
#9Holographic or diffraction device
#10Volume hologram comprising expansion agent layer or contraction agent layer for creating color patterns
#11Security element and method for producing a security element
#12Security holograms
#13Information recording medium and method of manufacturing the same
#14HOLOGRAPHIC DISK WITH 2P TRACK-BEARING LAYER
#15Multi-layer body with volume hologram
#16Surface relief volume reflective diffractive structure
#17Security document with a volume hologram forming a partial motif
#18Holographic or diffraction device
#19Holographic or diffraction devices
#20Hologram laminate and hologram label
#21Optical disc recording medium and method of manufacturing the same
#22Diffractive optical element and method of manufacture
#23Optically variable security device and method