JPS57178207A - Trimming filter - Google Patents

Trimming filter

Info

Publication number
JPS57178207A
JPS57178207A JP56064938A JP6493881A JPS57178207A JP S57178207 A JPS57178207 A JP S57178207A JP 56064938 A JP56064938 A JP 56064938A JP 6493881 A JP6493881 A JP 6493881A JP S57178207 A JPS57178207 A JP S57178207A
Authority
JP
Japan
Prior art keywords
refractive index
thickness
film
trimming filter
lambda0
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
JP56064938A
Other languages
Japanese (ja)
Other versions
JPS6038682B2 (en
Inventor
Mitsuharu Sawamura
Susumu Ito
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 JP56064938A priority Critical patent/JPS6038682B2/en
Publication of JPS57178207A publication Critical patent/JPS57178207A/en
Publication of JPS6038682B2 publication Critical patent/JPS6038682B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/286—Interference filters comprising deposited thin solid films having four or fewer layers, e.g. for achieving a colour effect

Abstract

PURPOSE:To obtain a trimming filter having the comb-shaped transmission properties that performs the separation among the luminous flux components of the blue, green and red color bands respectively, by laminating plural layers of specific optical film thickness which is made of the materials having different refractive indexes. CONSTITUTION:The layers, which have the thickness of the optical films within a range of (10/4)lambda0X(0.95-1.05) where lambda0 is a reference wavelength set by the value of 400-700nm and have different refractive indexes from each other, are laminated. If the reference length lambda0 is set at 520nm for example, a high refractive index film of ZrO2 (refractive index: 2.1), a low refractive index film of SiO2 (refractive index: 1.4a) and an intermediate refractive index film of Al2O3 (refractive index: 1.63) are laminated in that order on a substrate so as to obtain the (1,300nm+ or -5%) thickness for the optical film. In such way, a comb- shaped trimming filter is obtained with about 70% transmittance at the area approximate to 480nm and 580nm, and about 90-100% transmittance at the wavelength bands of other visible regions.
JP56064938A 1981-04-27 1981-04-27 trimming filter Expired JPS6038682B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56064938A JPS6038682B2 (en) 1981-04-27 1981-04-27 trimming filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56064938A JPS6038682B2 (en) 1981-04-27 1981-04-27 trimming filter

Publications (2)

Publication Number Publication Date
JPS57178207A true JPS57178207A (en) 1982-11-02
JPS6038682B2 JPS6038682B2 (en) 1985-09-02

Family

ID=13272468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56064938A Expired JPS6038682B2 (en) 1981-04-27 1981-04-27 trimming filter

Country Status (1)

Country Link
JP (1) JPS6038682B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271202A (en) * 1987-06-18 1990-03-09 Fuji Photo Film Co Ltd Band stop filter for photography
US4940636A (en) * 1987-07-22 1990-07-10 U.S. Philips Corporation Optical interference filter
US7630032B2 (en) 2004-09-06 2009-12-08 Sony Corporation LCD with selective transmission filter having light transmittance of 80% or more at wavelength regions of 440+/−20nm; 525+/−25nm and 565+/−45nm, and 10% or less at 470 to 485nm and 575 to 595nm
CN110556434A (en) * 2019-09-19 2019-12-10 金陵科技学院 Gradual change color solar cell module and film coating device and method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271202A (en) * 1987-06-18 1990-03-09 Fuji Photo Film Co Ltd Band stop filter for photography
US4940636A (en) * 1987-07-22 1990-07-10 U.S. Philips Corporation Optical interference filter
US7630032B2 (en) 2004-09-06 2009-12-08 Sony Corporation LCD with selective transmission filter having light transmittance of 80% or more at wavelength regions of 440+/−20nm; 525+/−25nm and 565+/−45nm, and 10% or less at 470 to 485nm and 575 to 595nm
US8179504B2 (en) 2004-09-06 2012-05-15 Sony Corporation Liquid crystal display with a light selective reflection filter
CN110556434A (en) * 2019-09-19 2019-12-10 金陵科技学院 Gradual change color solar cell module and film coating device and method thereof

Also Published As

Publication number Publication date
JPS6038682B2 (en) 1985-09-02

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