	US 7,455,889 B2
	Holographic media fabrication techniques
Jathan D. Edwards, Afton, Minn. (US); Ramon F. Hegel, North St. Paul, Minn. (US); and Thomas J. Adam, Cottage Grove, Minn. (US)
Assigned to Imation Corp., Oakdale, Minn. (US)
Filed on Mar. 24, 2004, as Appl. No. 10/807,821.
Prior Publication US 2005/0214682 A1, Sep. 29, 2005
Int. Cl. C08F 2/46 (2006.01); C08J 7/18 (2006.01); B05D 5/06 (2006.01); B05D 3/06 (2006.01); B29D 11/00 (2006.01); B01F 5/00 (2006.01)

U.S. Cl. 427—508 [427/512; 427/516; 427/162; 427/164; 264/1.36; 264/1.7; 264/1.9; 264/2.5; 366/69; 366/341; 366/336]

10 Claims

1. A method to fabricate a holographic data storage medium comprising:

aligning a cavity such that an upper flat and a lower flat of the cavity are substantially parallel;

mixing at least a first component and a second component to create a multi-chemistry holographic formulation using a mixer comprising a first stage including a first set of mixing elements that mixes, the first and second components and a second stage including a second set of mixing elements that further mixes the first and second components, wherein the mixing elements in the first stage are larger than the mixing elements in the second stage;

dispensing the multi-chemistry holographic formulation between two substrates inside the cavity using a dispense nozzle, wherein the dispense nozzle receives the multi-chemistry holographic formulation from the mixer and dispenses the multi-chemistry holographic formulation through one of the flats and through a hole formed in one of the substrates to dispense the multi-chemistry holographic formation between the two substrate, wherein outer surfaces of the two substrates are held to a substantially parallel position inside the cavity by the substantially parallel upper and lower flats; and

curing the multi-chemistry holographic formulation inside the cavity when the two substrates are held to the substantially parallel position to form holographic data storage medium.