Patent · US Active

Image device with a compact homogenizer

US11598971B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignees

Fusao Ishii · US
NTT DOCOMO, INC. · JP

Inventors

Fusao Ishii · Menlo Park, US
Mikiko Nakanishi · Tokyo, JP
Kazuoki Ichikawa · Tokyo, JP
Yuji Aburakawa · Yokohama, JP

Key dates

Filing date	Feb 24, 2020
Grant date	Mar 7, 2023
Priority date	—
Expiry date	Jun 3, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0178
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A compact light source for a projection display is disclosed enabling eye-glass display using a Fresnel mirror reflecting light without a distance as conventional prism type reflector.

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