Title: Lens-free optical device for making proton crystal
Application Number: 200610122343 Application Date: 2006.09.25
Publication Number: 1928740 Publication Date: 2007.03.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03H1/00
Applicant(s) Name: Xiamen University Address:
Inventor(s) Name:
Attorney & Agent: maying sen
Abstract:
    The lensless optical device for 2D hexagonal or 3D hexagonal holographic photon crystal comprises: a laser, a beam-expanding space filter on output light path of the laser, a combined optical element on light path of last filter, and a holographic record dry plate arranged on an interference region. Wherein, the combined optical element includes a substrate made of hard opaque material, there are three symmetrical holograms on the substrate included 120deg angle with each other, three or four holes on the substrate included 120deg angle with each other, and one hole arranged on the substrate center.
Time: 10