Patent ID: 8305700
Filing Date: 2012-11-06
Classification: G02B,G11B

Abstract:
1. An assembly comprising: a unitary holographic drive head assembly mounting structure having sufficient rigidity to minimize motion effects on optical alignment of holographic drive head assembly components and/or subassemblies mounted on the mounting structure; a plurality of preselected locations for mounting holographic drive head components and/or subassemblies requiring optical alignment; and passive alignment means associated with one or more of the preselected locations for optically aligning the holographic drive head components and/or subassemblies; and a plurality of holographic drive head components and/or subassemblies, each of the holographic drive head components and/or subassemblies being mounted at one of the preselected locations; wherein the holographic drive head components and/or subassemblies comprise at least a portion of a data beam path, a reference beam path or both; wherein the holographic drive head components and/or subassemblies comprise one or more of: lens components and/or subassemblies or a spatial light modulator/beam splitter subassembly; and wherein the lens components and/or subassemblies comprise one or more relay lens subassemblies, a scanner lens subassembly, a data expander lens subassembly and a storage lens subassembly.