JPS5655901A - Antireflection film - Google Patents
Antireflection filmInfo
- Publication number
- JPS5655901A JPS5655901A JP14145880A JP14145880A JPS5655901A JP S5655901 A JPS5655901 A JP S5655901A JP 14145880 A JP14145880 A JP 14145880A JP 14145880 A JP14145880 A JP 14145880A JP S5655901 A JPS5655901 A JP S5655901A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- working
- refractive indexes
- films
- film
- 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
Links
Landscapes
- Surface Treatment Of Optical Elements (AREA)
Abstract
PURPOSE: To impart superior antireflection effect over a wide wavelength range to an antireflection film by devising the thicknesses of 5 layers of working films which successively repeat two kinds of refractive indexes, high and low, with respect to an underlying materials having refractive indexes of a wide range.
CONSTITUTION: An antireflection film having working films of 5 layers L1WL5 are provided for an underlying material Lb of refractive indexes nb5=1.65W1.90 at the specific wavelength λ0. In the respective working films L1WL5, the 1st layer L1 is exposed to the atmosphere such as air, and the 5th layer L5 sticks on the underlying material Lb. Between these, the working films L2WL4 are successively laminated. This is then constituted by the working films of two kinds of refractive indexes in which the 1st layer L1, 3rd layer L3 and the 5th layer L5 are used as a low refractive index working film and the 2nd layer L2 and 4th layer L4 as a high refractive index working film, and the respective layers L1WL5 are so formed that their layer thicknesses (t1)W(t5) are 0.25λ0≤t1≤0.35λ0, 0.1λ0≤t2≤0.25λ0, 0.01λ0≤t3≤ 0.15λ0, 0.1≤t4≤0.25λ0, 0.01λ0≤t5≤0.15λ0.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14145880A JPS5655901A (en) | 1980-10-09 | 1980-10-09 | Antireflection film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14145880A JPS5655901A (en) | 1980-10-09 | 1980-10-09 | Antireflection film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5655901A true JPS5655901A (en) | 1981-05-16 |
Family
ID=15292358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14145880A Pending JPS5655901A (en) | 1980-10-09 | 1980-10-09 | Antireflection film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5655901A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6177001A (en) * | 1984-09-25 | 1986-04-19 | Canon Inc | Optical antireflecting film |
JPH02163702A (en) * | 1988-12-16 | 1990-06-25 | Matsushita Electric Ind Co Ltd | Antireflection film of optical parts made of plastic |
JPH09329702A (en) * | 1996-06-10 | 1997-12-22 | Nikon Corp | Antireflection film |
-
1980
- 1980-10-09 JP JP14145880A patent/JPS5655901A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6177001A (en) * | 1984-09-25 | 1986-04-19 | Canon Inc | Optical antireflecting film |
JPH058801B2 (en) * | 1984-09-25 | 1993-02-03 | Canon Kk | |
JPH02163702A (en) * | 1988-12-16 | 1990-06-25 | Matsushita Electric Ind Co Ltd | Antireflection film of optical parts made of plastic |
JPH09329702A (en) * | 1996-06-10 | 1997-12-22 | Nikon Corp | Antireflection film |
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