JPS61141402A - Polarized light separating film - Google Patents

Polarized light separating film

Info

Publication number
JPS61141402A
JPS61141402A JP26392184A JP26392184A JPS61141402A JP S61141402 A JPS61141402 A JP S61141402A JP 26392184 A JP26392184 A JP 26392184A JP 26392184 A JP26392184 A JP 26392184A JP S61141402 A JPS61141402 A JP S61141402A
Authority
JP
Japan
Prior art keywords
film
band width
thickness
optical
polarized 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.)
Pending
Application number
JP26392184A
Other languages
Japanese (ja)
Inventor
Minoru Kiyono
Hiroki Nakajima
Masaaki Norimatsu
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP26392184A priority Critical patent/JPS61141402A/en
Publication of JPS61141402A publication Critical patent/JPS61141402A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To extend a band width by defining a thickness of an optical film at a center layer or its adjacent layer of a dielectric multilayer film so as to be the max. band width in a specific range.
CONSTITUTION: In the title film formed on an optical substrate having 1.45W1.65 refractive index, the dielectric mutlilayer film having a film formation shown by the formula {(0.5H)L(0.5H)}k (k = a natural number) wherein H and L are each thickness of the optical films composed of the materials having a high and a low refractive index respectively, the thickness of the optical film at the center layer is defined so as to be the max. band width in the thickness (d) of the optical film having 0.7W2.0λ range, thereby enabling to obtain a large band width and to obtain a sufficiently broad band width in the polarized light separation, even if the title film of a low cost is used.
COPYRIGHT: (C)1986,JPO&Japio
JP26392184A 1984-12-14 1984-12-14 Polarized light separating film Pending JPS61141402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26392184A JPS61141402A (en) 1984-12-14 1984-12-14 Polarized light separating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26392184A JPS61141402A (en) 1984-12-14 1984-12-14 Polarized light separating film

Publications (1)

Publication Number Publication Date
JPS61141402A true JPS61141402A (en) 1986-06-28

Family

ID=17396118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26392184A Pending JPS61141402A (en) 1984-12-14 1984-12-14 Polarized light separating film

Country Status (1)

Country Link
JP (1) JPS61141402A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130104A (en) * 1987-11-17 1989-05-23 Fujitsu Ltd Polarized light separating element
JPH0363101U (en) * 1989-10-24 1991-06-20
JPH0778578B1 (en) * 1988-02-26 1995-08-23 Fujitsu Ltd
US5808795A (en) * 1995-03-06 1998-09-15 Nikon Corporation Projection type display apparatus
US5969861A (en) * 1994-02-07 1999-10-19 Nikon Corporation Polarizing optical system
US6062694A (en) * 1995-03-06 2000-05-16 Nikon Corporation Projection type display apparatus
US6227670B1 (en) 1995-03-06 2001-05-08 Nikon Corporation Projection type display apparatus
US6432854B1 (en) 1994-02-07 2002-08-13 Nikon Corporation Optical glass for polarizing optical system, production process therefor and polarizing beam splitter
JP2012189930A (en) * 2011-03-14 2012-10-04 Seiko Epson Corp Projector

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130104A (en) * 1987-11-17 1989-05-23 Fujitsu Ltd Polarized light separating element
JPH0778578B1 (en) * 1988-02-26 1995-08-23 Fujitsu Ltd
JPH0363101U (en) * 1989-10-24 1991-06-20
US5969861A (en) * 1994-02-07 1999-10-19 Nikon Corporation Polarizing optical system
US6432854B1 (en) 1994-02-07 2002-08-13 Nikon Corporation Optical glass for polarizing optical system, production process therefor and polarizing beam splitter
US5808795A (en) * 1995-03-06 1998-09-15 Nikon Corporation Projection type display apparatus
US6062694A (en) * 1995-03-06 2000-05-16 Nikon Corporation Projection type display apparatus
US6227670B1 (en) 1995-03-06 2001-05-08 Nikon Corporation Projection type display apparatus
US6464360B2 (en) 1995-03-06 2002-10-15 Nikon Corporation Projection type display apparatus
JP2012189930A (en) * 2011-03-14 2012-10-04 Seiko Epson Corp Projector

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