Patent · US Active

Manufacture method for blazed concave grating

US9470824B2 · kind B2 · utility

1Cited by

0References

7Claims

0Family size

Assignee

Graduate School at Shenzhen, Tsinghua University · CN

Inventors

Qian Zhou · Beijing, CN
Kai Ni · Sammamish, US
Rui Tian · Wuxi, CN
Yang Li · San Jose, US
Mingfei Xu · Nanhu, CN
Jinchao ZHANG · Longbeilingcun, CN
Jinchao Pang · Tangxia, CN
Hao Dong · Santa Clara, US

Key dates

Filing date	Dec 29, 2015
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Dec 29, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/1861
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A manufacture method for a blazed concave grating is provided, including: replicating a blazed concave grating by means of a replication process, after the replication is completed, conducting heat preservation and cooling, then separating two gratings (G1, G2) by using different pulling manners respectively, and finally splicing the replicated and separated concave grating blanks, to obtain a required blazed concave grating. This manufacture method can solve the problem of a big error in an existing replication method for a blazed concave grating.

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