JPS547359A - Dichroic film having suitable half-width - Google Patents

Dichroic film having suitable half-width

Info

Publication number
JPS547359A
JPS547359A JP7189677A JP7189677A JPS547359A JP S547359 A JPS547359 A JP S547359A JP 7189677 A JP7189677 A JP 7189677A JP 7189677 A JP7189677 A JP 7189677A JP S547359 A JPS547359 A JP S547359A
Authority
JP
Japan
Prior art keywords
dichroic film
width
refractive index
layers
suitable half
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
JP7189677A
Other languages
Japanese (ja)
Inventor
Michihiro Tokuhara
Mitsuharu Sawamura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7189677A priority Critical patent/JPS547359A/en
Priority to US05/907,818 priority patent/US4247167A/en
Publication of JPS547359A publication Critical patent/JPS547359A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Optical Filters (AREA)

Abstract

PURPOSE: To obtain a dichroic film of a suitable hald-width without increasing the number of layers by selecting the optical film thickness of the basic layer of both refractive index layers in the dichroic film composed of alternate layers of high refractive index and low refractive index films.
COPYRIGHT: (C)1979,JPO&Japio
JP7189677A 1977-05-27 1977-06-17 Dichroic film having suitable half-width Pending JPS547359A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7189677A JPS547359A (en) 1977-06-17 1977-06-17 Dichroic film having suitable half-width
US05/907,818 US4247167A (en) 1977-05-27 1978-05-19 Dichroic mirror with at least ten layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7189677A JPS547359A (en) 1977-06-17 1977-06-17 Dichroic film having suitable half-width

Publications (1)

Publication Number Publication Date
JPS547359A true JPS547359A (en) 1979-01-20

Family

ID=13473743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7189677A Pending JPS547359A (en) 1977-05-27 1977-06-17 Dichroic film having suitable half-width

Country Status (1)

Country Link
JP (1) JPS547359A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231453A (en) * 1984-04-27 1985-11-18 イソライト・バブコツク耐火株式会社 Porous refractories and manufacture
JP2005321753A (en) * 2004-04-05 2005-11-17 Olympus Corp Epi-illumination microscope and fluorescent filter set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231453A (en) * 1984-04-27 1985-11-18 イソライト・バブコツク耐火株式会社 Porous refractories and manufacture
JP2005321753A (en) * 2004-04-05 2005-11-17 Olympus Corp Epi-illumination microscope and fluorescent filter set

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