JPS5647012A - Fabry-perot etalon - Google Patents

Fabry-perot etalon

Info

Publication number
JPS5647012A
JPS5647012A JP12253879A JP12253879A JPS5647012A JP S5647012 A JPS5647012 A JP S5647012A JP 12253879 A JP12253879 A JP 12253879A JP 12253879 A JP12253879 A JP 12253879A JP S5647012 A JPS5647012 A JP S5647012A
Authority
JP
Japan
Prior art keywords
thickness
wavelengths
perot etalon
fabry
light
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
JP12253879A
Other languages
Japanese (ja)
Other versions
JPH0338564B2 (en
Inventor
Takeo Suzuki
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP12253879A priority Critical patent/JPS5647012A/en
Publication of JPS5647012A publication Critical patent/JPS5647012A/en
Publication of JPH0338564B2 publication Critical patent/JPH0338564B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To make the transmittance to light of the specific two wavelengths particularly high by selecting the ratio of the refractive indexes of a transparent medium of Fabray-Perot etalon for light of two wavelengths and the thickness of the transparent medium.
CONSTITUTION: When the thickness of a transparent medium layer 8 is defined as (d), the refractive index of the medium at a wavelength λ1 as n1, and the refractive index at a wavelength λ2 as n2, n2/n1 are so selected that the formula-1 and the formula-2 (M, N are respective positive integers) hold simultaneously. From this value, the thickness (d) is obtained. If the medium layer 8 of Fabry-Perot etalon of the thickness (d) is formed by the material having the ratio of the refractive indexes to the two wavelengths selected in this way, the transmittance to the light of the wavelengths λ1, λ2 may be made particularly high.
COPYRIGHT: (C)1981,JPO&Japio
JP12253879A 1979-09-26 1979-09-26 Fabry-perot etalon Granted JPS5647012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12253879A JPS5647012A (en) 1979-09-26 1979-09-26 Fabry-perot etalon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12253879A JPS5647012A (en) 1979-09-26 1979-09-26 Fabry-perot etalon

Publications (2)

Publication Number Publication Date
JPS5647012A true JPS5647012A (en) 1981-04-28
JPH0338564B2 JPH0338564B2 (en) 1991-06-11

Family

ID=14838334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12253879A Granted JPS5647012A (en) 1979-09-26 1979-09-26 Fabry-perot etalon

Country Status (1)

Country Link
JP (1) JPS5647012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129303A (en) * 1989-04-26 1991-06-03 Flex Prod Inc Optical type variable device
JP2019056752A (en) * 2017-09-20 2019-04-11 株式会社東芝 Optical element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963487A (en) * 1972-10-18 1974-06-19
JPS53101416A (en) * 1976-12-23 1978-09-04 Heidenhain Gmbh Dr Johannes Recording material for reproducing high resolving pattern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963487A (en) * 1972-10-18 1974-06-19
JPS53101416A (en) * 1976-12-23 1978-09-04 Heidenhain Gmbh Dr Johannes Recording material for reproducing high resolving pattern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129303A (en) * 1989-04-26 1991-06-03 Flex Prod Inc Optical type variable device
JP2019056752A (en) * 2017-09-20 2019-04-11 株式会社東芝 Optical element
US10734780B2 (en) 2017-09-20 2020-08-04 Kabushiki Kaisha Toshiba Optical device

Also Published As

Publication number Publication date
JPH0338564B2 (en) 1991-06-11

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