JPS5645850A - Manufacture of flint glass having desired refractive index - Google Patents

Manufacture of flint glass having desired refractive index

Info

Publication number
JPS5645850A
JPS5645850A JP11876279A JP11876279A JPS5645850A JP S5645850 A JPS5645850 A JP S5645850A JP 11876279 A JP11876279 A JP 11876279A JP 11876279 A JP11876279 A JP 11876279A JP S5645850 A JPS5645850 A JP S5645850A
Authority
JP
Japan
Prior art keywords
refractive index
pbo
flint glass
obtd
desired refractive
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.)
Granted
Application number
JP11876279A
Other languages
Japanese (ja)
Other versions
JPH0131463B2 (en
Inventor
Eiichi Akatsu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11876279A priority Critical patent/JPS5645850A/en
Publication of JPS5645850A publication Critical patent/JPS5645850A/en
Publication of JPH0131463B2 publication Critical patent/JPH0131463B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Glass Melting And Manufacturing (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To obtain flint glass having a desired refractive index by using two components besides PbO and determining the mixing ratio according to specified simultaneous equations to attain the refractive index.
CONSTITUTION: Two components A, B are used besides PbO, and considering the PbO content (wt%) of flint glass having desired refractive index Ni (when one of Fraunhofer lines c, aWg is considered to be i, refractive index to this i) to be α, bar Ni is obtd. according to specified equation I. In the equation, αri is a constant in the case where the PbO content of flint glass is α and it is obtd. in an annexed list. According to simultaneous equations II, III x and y are then obtd., and αwt% PbO, x wt% component A and y wt% component B are mixed. In the equations, each of ai and bi is a constant to Fraunhofer line i and is obtd. in the annexed list.
COPYRIGHT: (C)1981,JPO&Japio
JP11876279A 1979-09-18 1979-09-18 Manufacture of flint glass having desired refractive index Granted JPS5645850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11876279A JPS5645850A (en) 1979-09-18 1979-09-18 Manufacture of flint glass having desired refractive index

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11876279A JPS5645850A (en) 1979-09-18 1979-09-18 Manufacture of flint glass having desired refractive index

Publications (2)

Publication Number Publication Date
JPS5645850A true JPS5645850A (en) 1981-04-25
JPH0131463B2 JPH0131463B2 (en) 1989-06-26

Family

ID=14744424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11876279A Granted JPS5645850A (en) 1979-09-18 1979-09-18 Manufacture of flint glass having desired refractive index

Country Status (1)

Country Link
JP (1) JPS5645850A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127617A (en) * 1984-10-30 1986-06-14 ロ−ヌ−プ−ラン・スペシアリテ・シミ−ク Manufacture of superhigh purity silicon rod
JPH02111642A (en) * 1988-10-20 1990-04-24 Natl Inst For Res In Inorg Mater Glass design support equipment
US6503563B1 (en) 2001-10-09 2003-01-07 Komatsu Ltd. Method of producing polycrystalline silicon for semiconductors from saline gas
US6623801B2 (en) 2001-07-30 2003-09-23 Komatsu Ltd. Method of producing high-purity polycrystalline silicon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127617A (en) * 1984-10-30 1986-06-14 ロ−ヌ−プ−ラン・スペシアリテ・シミ−ク Manufacture of superhigh purity silicon rod
JPH02111642A (en) * 1988-10-20 1990-04-24 Natl Inst For Res In Inorg Mater Glass design support equipment
US6623801B2 (en) 2001-07-30 2003-09-23 Komatsu Ltd. Method of producing high-purity polycrystalline silicon
US6503563B1 (en) 2001-10-09 2003-01-07 Komatsu Ltd. Method of producing polycrystalline silicon for semiconductors from saline gas

Also Published As

Publication number Publication date
JPH0131463B2 (en) 1989-06-26

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