DE2967536D1 - A method of manufacturing a curved diffraction grating structure - Google Patents

A method of manufacturing a curved diffraction grating structure

Info

Publication number
DE2967536D1
DE2967536D1 DE8282100228T DE2967536T DE2967536D1 DE 2967536 D1 DE2967536 D1 DE 2967536D1 DE 8282100228 T DE8282100228 T DE 8282100228T DE 2967536 T DE2967536 T DE 2967536T DE 2967536 D1 DE2967536 D1 DE 2967536D1
Authority
DE
Germany
Prior art keywords
manufacturing
diffraction grating
grating structure
curved diffraction
curved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282100228T
Other languages
German (de)
Inventor
Yohji Fujii
Junichiro Minowa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP8734478A external-priority patent/JPS5515133A/en
Priority claimed from JP4051779A external-priority patent/JPS55133004A/en
Priority claimed from JP4166979A external-priority patent/JPS5946363B2/en
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority claimed from EP79102442A external-priority patent/EP0007108B1/en
Application granted granted Critical
Publication of DE2967536D1 publication Critical patent/DE2967536D1/en
Expired legal-status Critical Current

Links

DE8282100228T 1978-07-18 1979-07-16 A method of manufacturing a curved diffraction grating structure Expired DE2967536D1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8734478A JPS5515133A (en) 1978-07-18 1978-07-18 Production of plane diffraction grating
JP4051779A JPS55133004A (en) 1979-04-04 1979-04-04 Production of nonplane diffraction grating
JP4166979A JPS5946363B2 (en) 1979-04-06 1979-04-06 Manufacturing method of plane diffraction grating
EP79102442A EP0007108B1 (en) 1978-07-18 1979-07-16 A method of manufacturing a diffraction grating structure

Publications (1)

Publication Number Publication Date
DE2967536D1 true DE2967536D1 (en) 1985-11-28

Family

ID=27440186

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282100228T Expired DE2967536D1 (en) 1978-07-18 1979-07-16 A method of manufacturing a curved diffraction grating structure

Country Status (1)

Country Link
DE (1) DE2967536D1 (en)

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: NIPPON TELEGRAPH AND TELEPHONE CORP., TOKIO/TOKYO,

8364 No opposition during term of opposition