Patent · US Active

Optical lens

US12240944B2 · kind B2 · utility

0Cited by

6References

6Claims

0Family size

Assignee

TEIJIN LIMITED · JP

Inventors

Kyosuke Yamada · Osaka, JP
Manabu Matsui · Osaka, JP
Takatsune Yanagida · Chiyoda, JP
Kazuyoshi Ogasawara · Nanbu, JP
Kazunori Nunome · Osaka, JP
Keisuke Sato · Osaka, JP
Tatsuya Oyama · Tokyo, JP
Yasuhiko TOMONARI · Osaka, JP

Key dates

Filing date	Feb 26, 2020
Grant date	Mar 4, 2025
Priority date	—
Expiry date	Mar 12, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2203/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention provides an optical lens that can provide small-sized imaging modules. The optical lens of the invention comprises a thermoplastic resin having a refractive index (nD) and Abbe number (ν) satisfying the following mathematical formula (A): nD≤−0.02×ν+2.040 (A) (where 1.660<nD).

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