Method for manufacturing diffraction optical element

Details Method for manufacturing diffraction optical element Method for manufacturing diffraction optical element

2007-11-13

2007-11-13

Vargot, Mathieu D. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

C264S001380, C264S496000, C359S566000

Reexamination Certificate

active

10438027

ABSTRACT:
A method for manufacturing a diffraction optical element, according to the present invention, includes the steps of: supplying a photocurable resin onto a surface of a light-transmitting molding die in which a grating pattern is formed on the surface; irradiating the photocurable resin with light having a first wavelength through the molding die so as to cure a part of the photocurable resin; irradiating the photocurable resin with light having a second wavelength, which is longer than the firs wavelength, through the molding die so as to cure at least a part of the photocurable resin; and removing the cured resin from the molding die.

REFERENCES:
patent: 4919850 (1990-04-01), Blum et al.
patent: 4983335 (1991-01-01), Matsuo et al.
patent: 5629804 (1997-05-01), Tomono
patent: 6096383 (2000-08-01), Berg et al.
patent: 6-59104 (1994-03-01), None
Michael W. Farn et al., “Diffractive Doublet Corrected On-Axis at Two Wavelengths,” 1354SPIE24-29(1990).

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