| 摘要 |
<p>A method of producing an inline hologram lens IN-L is disclosed which includes the steps of recording on a first photo-sensitive layer K a holographic interference pattern which results from the simultaneous irradiation of the first layer K by a reference wave beam B and, a subject wave beam A, the two beams B and A being off-axis relative to each other and the beam A being perpendicular to the first layer K, forming an off-axis hologram lens OX-L by developing the first layer K, facing a second photo-sensitive layer K to the off-axis hologram lens OX-L, irradiating the off-axis holograms lens OX-L by a reproduction reference wave beam B', simultaneously irradiating the second layer K perpendicularly by a reproduction subject wave beam A' as a subject from the off-axis hologram lens OX-L and a reference wave beam B through the off-axis hologram lens OX-L, and developing the second layer K. An optical reproducing head using such a lens is also described. <IMAGE></p> |
