公开(公告)号：US5550655A

公开(公告)日：1996-08-27

申请号：US232344

申请日：1994-04-22

申请人： Shigeo Kayashima ,  Shinya Hasegawa ,  Satoshi Maeda ,  Hirokazu Aritake

发明人： Shigeo Kayashima ,  Shinya Hasegawa ,  Satoshi Maeda ,  Hirokazu Aritake

IPC分类号： G02B5/32 ,  G02B26/10 ,  G03H1/22 ,  G02B36/10

CPC分类号： G02B26/106

摘要： A laser beam passes through two holograms or through a hologram twice to reduce the ratio .lambda./d so that P-polarized light, as well as S-polarized light, can be diffracted with high diffraction efficiency and uses a hologram or holograms formed on a base plate and facilitates the separation of a stamper from the base plate in producing replicas of the hologram. A laser beam (5) passes through two holograms formed on a transparent base plate or through a hologram formed on a transparent base plate twice. The ratio .lambda./d, where .lambda. is the wavelength of the laser beam and d is the grating constant of the hologram, is in the range of 0.4 to 1.1.

摘要翻译： 激光束通过两个全息图或通过全息图两次以减小λ/ d比，使得P偏振光以及S偏振光可以以高衍射效率被衍射，并且使用形成在全息图上的全息图或全息图 并且有助于在制造全息图的副本时将压模与基板分离。 激光束（5）通过形成在透明基板上的两个全息图或通过形成在透明基板上的全息图两次。 比率λ/ d，其中λ是激光束的波长，d是全息图的光栅常数，在0.4至1.1的范围内。