JPS6476000A - Focusing mirror and its manufacture - Google Patents

Focusing mirror and its manufacture

Info

Publication number
JPS6476000A
JPS6476000A JP23383787A JP23383787A JPS6476000A JP S6476000 A JPS6476000 A JP S6476000A JP 23383787 A JP23383787 A JP 23383787A JP 23383787 A JP23383787 A JP 23383787A JP S6476000 A JPS6476000 A JP S6476000A
Authority
JP
Japan
Prior art keywords
base plate
glass
mirror
glass base
cutting
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.)
Pending
Application number
JP23383787A
Other languages
Japanese (ja)
Inventor
Michio Ishikawa
Tsuneo Hamaguchi
Toshio Okubo
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.)
NEC Corp
Original Assignee
NEC 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
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP23383787A priority Critical patent/JPS6476000A/en
Publication of JPS6476000A publication Critical patent/JPS6476000A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To attain a high accuracy control of mirror cutting remains, by cutting deep multiple grooves on a glass base plate and a low specific resistance Si single crystal wafer and laminating the wafers on the glass base plate as its bottom surface. CONSTITUTION:A lozenge focusing mirror 21 consists of a groove part 22 made of a low specific resistance Si single crystal and a bottom surface 23 made of a glass and then parallel deep grooves 10-1-10-N are formed along its shorter rectangular secant. And for the deep grooves 10, only Si single crystals in a groove section 22 are processed with an electrical wire discharging process, and for a bottom section 23, a glass plate having a highly accurate thickness and being cut out from a glass base plate processed with a highly accurate mirror surface processing, is used. Therewith, not only the cutting remains can be formed constantly and highly accurately but also a surface with almost no residual processing distortion can be obtained.
JP23383787A 1987-09-18 1987-09-18 Focusing mirror and its manufacture Pending JPS6476000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23383787A JPS6476000A (en) 1987-09-18 1987-09-18 Focusing mirror and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23383787A JPS6476000A (en) 1987-09-18 1987-09-18 Focusing mirror and its manufacture

Publications (1)

Publication Number Publication Date
JPS6476000A true JPS6476000A (en) 1989-03-22

Family

ID=16961342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23383787A Pending JPS6476000A (en) 1987-09-18 1987-09-18 Focusing mirror and its manufacture

Country Status (1)

Country Link
JP (1) JPS6476000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825565A (en) * 1992-03-05 1998-10-20 Industrieanlagen-Betriebsgesellschaft Gmbh Reflector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825565A (en) * 1992-03-05 1998-10-20 Industrieanlagen-Betriebsgesellschaft Gmbh Reflector

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