Patent · US Active

Diffractive optical element fabrication

US12078928B2 · kind B2 · utility

0Cited by

0References

23Claims

0Family size

Assignee

II-VI DELAWARE, INC. · US

Inventors

Nitesh Gulati · Rosebery, AU
Vincent Choo · Rosebery, AU
Yiwei Xu · Bundaberg, AU
Glenn Wayne Baxter · Wilmington, US
Steven James Frisken · Sydney, AU

Key dates

Filing date	Feb 18, 2022
Grant date	Sep 3, 2024
Priority date	—
Expiry date	Nov 7, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Described herein are embodiments of a diffractive optical element (23) such as a grism. In one embodiment, the diffractive optical element (23) includes an input surface (31) configured to receive an input optical signal (29), a diffractive surface (33) adapted to spatially disperse the input optical beam (29) into a dispersed signal and an output surface (35) configured to output the dispersed signal from the diffractive optical element. The input surface (31) and the diffractive surface (33) are non-parallel and the diffractive surface (33) is formed in situ by a photolithographic technique.

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