Method for the production of an optical phase-shifting board

Details Method for the production of an optical phase-shifting board Method for the production of an optical phase-shifting board

1987-10-26

1988-10-25

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156653, 156657, 1566591, 156667, B44C 122, C03C 1500, C03C 2506

Patent

active

047801751

ABSTRACT:
A method for the production of an optical phase-shifting board comprising laying two or more layer-elements with different etching rates therebetween upon a substrate and then subjecting the substrate to an etching treatment so as to remove given portions of the layer-element with the highest etching rate that is disposed on the top of the layer-elements, resulting in the optical phase-shifting board, and a method for the fixation of the optical phase-shifting board to the stem comprising disposing molten light-sensitive or thermosetting resin in or on a guiding rail of the stem positioned in front of the light-emitting face of a semiconductor laser device, placing the optical phase-shifting board in or on the guiding rail of the stem, sliding the optical phase-shifting board in or on the guiding rail along the guiding rail while the far-field pattern of the semiconductor laser device is being monitored, stopping the sliding of the optical phase-shifting board in or on the guiding rail at the position where the far-field pattern conforms to a desired pattern, and curing the molten resin in or on the guiding rail to fix the optical phase-shifting board to the stem at said position.

REFERENCES:
patent: 3542453 (1970-11-01), Kantor
patent: 4343890 (1982-08-01), Phillips et al.
patent: 4610502 (1986-09-01), Nicia et al.
patent: 4610757 (1986-09-01), Khoe et al.

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