Planar microlens array and method of manufacturing same

Details Planar microlens array and method of manufacturing same Planar microlens array and method of manufacturing same

1999-06-16

2000-05-30

Epps, Georgia

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

359623, G02B 2710

Patent

active

060697407

ABSTRACT:
A planar microlens array 1 includes an array of microlenses 3 made of a synthetic resin having a high refractive index and formed on a surface of one of a base glass plate 2 and a cover glass plate 4, and an adhesive layer 5 made of a synthetic resin having a low refractive index standing between the array of microlenses 3 and the other of the base glass plate 2 and the cover glass plate 4, wherein the equations (Eqs. 1-5) are satisfied, where, n.sub.1 represents the refractive index of the synthetic resin having a high refractive index, n.sub.2 represents the refractive index of the synthetic resin having a low refractive index, t.sub.1 represents the thickness of the thickest portion of the sphere portion of the microlenses, t.sub.2 represents said thickness of the rest portion of the microlenses and t.sub.3 represents the thickness of the thinnest portion of the adhesive layer.

REFERENCES:
patent: 5554432 (1996-09-01), Sandor et al.

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