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US 2008/0105990 A1Published application
Lens array, manufacturing method of lens array, illumination optical device, and projector
AssigneeSeiko Epson Corporation
InventorMotoyuki FUJIMORI
Life of this patent
Estimating the term…
Abstract
Molten glass (G) is set and press-molded in a molding die (60) having dies (621A1, 621A2) corresponding to a lens array. After the molding, the molded article is removed from the molding die (60) and separated by bending at a bend-separation face (121C), which is a boundary part of adjacent lens arrays, so that two lens arrays are produced.
Claims6
A method for manufacturing a lens array including a base with a shape of substantially rectangular plate, and a dome-shaped lens section formed on one face of the base and having a plurality of small lenses, the method comprising:
- a press-molding step for setting and press-molding a molten optical material in a molding die in which a plurality of dies corresponding to the lens array are formed;
- and
- a bending and separating step for removing from the molding die after the molding, and separating adjacent lens array molded articles by bending at a boundary thereof.
Dependencies are inferred from the claim text.