Method of manufacturing lens array

Details Method of manufacturing lens array Method of manufacturing lens array

1995-06-06

1997-12-02

Sugarman, Scott J.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

359622, G02B 2710

Patent

active

056942460

ABSTRACT:
A method of manufacturing a lens array according to the invention is presented wherein a first array of first lens-base elements is formed on a substrate with spacing therebetween. The first lens-base elements are heated so that the first lens-base elements melt to form first lenses having round surfaces. A separation layer is formed to cover the first lenses and the substrate. A second array of second lens-base elements is formed, the second lens-base elements being placed on a region where the first lenses are not formed so as to partly overlap with the first lenses. The second lens-base elements are also heated so that the second lens-base elements melt to form second lenses having round surfaces. The lens array comprises the substrate and the first and second lenses.

REFERENCES:
patent: Re26506 (1968-12-01), Rogers
patent: 1263065 (1918-04-01), Johanson
Z. Popovic et al. "Technique for monolithic fabrication of microlens arrays", Applied Optics, vol. 27, No. 7, 1 Apr. 1988, pp. 1281-1284.
N. Borrelli et al., "Photolytic technique for producing microlenses in photosensitive glass", Applied Optics, vol. 24, No. 16, 15 Aug. 1985, pp. 2520-2525.
N. Craft et al., "Optical interconnects based on arrays of surface-emitting lasers and lenslets", Applied Optics, vol. 31, No. 11, 10 Apr. 1992, pp. 1735-1739.
K. Iga et al., "Stacked planar optics: an application of the planar microlens", Applied Optics, vol. 21, No. 19, 1 Oct. 1982, pp. 3456-3460.
Kawai, "Microlens integral with plane-type optical element," Optronics, No. 1, 1993, pp. 86-93.
Nishizawa, "Microlens of distributed refractive index type," Optical Alliance, 1993. 2., pp. 34-38.

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