Patent · US Expired

MICROLENS ARRAY, A METHOD FOR MAKING A TRANSFER MASTER PATTERN FOR MICROLENS ARRAY, A CONCAVE AND CONVEX PATTERN OBTAINED FROM THE TRANSFER MASTER PATTERN, A LAMINATE FOR TRANSFER, A DIFFUSE REFLECTION PLATE AND A LIQUID CRYSTAL DISPLAY DEVICE

US6898015B2 · kind B2 · utility

9Cited by
7References
23Claims
0Family size

Assignees

Inventors

Key dates

Filing dateSep 26, 2003
Grant dateMay 24, 2005
Priority date
Expiry dateSep 26, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2203/03
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A microlens array having a substrate and microlenses of a substantially circular profile provided on the substrate and each arranged such that a major axis and a minor axis thereof, which pass through a center of the substantially circular profile and intersect at 90 degrees, are substantially equal in length to each other, and sectional forms at faces vertical to an axis parallel to the major axis or the minor axis are, respectively, made of the same curved shape at any position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.