JPS56102801A - Reflection preventing film - Google Patents
Reflection preventing filmInfo
- Publication number
- JPS56102801A JPS56102801A JP477080A JP477080A JPS56102801A JP S56102801 A JPS56102801 A JP S56102801A JP 477080 A JP477080 A JP 477080A JP 477080 A JP477080 A JP 477080A JP S56102801 A JPS56102801 A JP S56102801A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thickness
- layers
- substrate glass
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
PURPOSE:To obtain a wide reflection preventing wavelength region, by giving the three-layer structure where the first, the second, and the third layers are formed in order from the air side to the substrate glass side and selecting the thickness of respective layers to satisfy a prescribed condition. CONSTITUTION:The three-layer structure is given where the first layer I, the second layer II, and the third layer III are formed in order from air A side to the substrate glass B side. When the design wavelength is denoted lambda0, the ratio of the thickness of these layers is set properly according to the structures of the refractive index of substrate glass B and the refractive index of the third layer III in the range where the sum of the thickness of the first and the second layers I and II, is regulated to approximately lambda0/4, and the thickness of the third layer III is regulated to approximately lambda0/2. Further, when refractive indexes of materials constituting the first layer I, the second layer II, and the third layer III are denoted an n1, n2 and n3, respectively and the refractive index of substrate glass B is denoted as (n), they satisfy condition n3>n0>n2>n1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP477080A JPS56102801A (en) | 1980-01-19 | 1980-01-19 | Reflection preventing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP477080A JPS56102801A (en) | 1980-01-19 | 1980-01-19 | Reflection preventing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56102801A true JPS56102801A (en) | 1981-08-17 |
Family
ID=11593079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP477080A Pending JPS56102801A (en) | 1980-01-19 | 1980-01-19 | Reflection preventing film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56102801A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139702A (en) * | 1981-02-25 | 1982-08-28 | Fuji Photo Optical Co Ltd | Reflection preventing film of plastic optical member |
| US5245474A (en) * | 1988-03-22 | 1993-09-14 | Compagnie Generale D'electricite | Electromagnetic filter device |
| JP2006047924A (en) * | 2004-08-09 | 2006-02-16 | Olympus Corp | Anti-reflection film |
| US7918154B2 (en) | 2007-03-12 | 2011-04-05 | Smc Kabushiki Kaisha | Pressure booster |
-
1980
- 1980-01-19 JP JP477080A patent/JPS56102801A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139702A (en) * | 1981-02-25 | 1982-08-28 | Fuji Photo Optical Co Ltd | Reflection preventing film of plastic optical member |
| JPS6135522B2 (en) * | 1981-02-25 | 1986-08-13 | Fuji Photo Optical Co Ltd | |
| US5245474A (en) * | 1988-03-22 | 1993-09-14 | Compagnie Generale D'electricite | Electromagnetic filter device |
| JP2006047924A (en) * | 2004-08-09 | 2006-02-16 | Olympus Corp | Anti-reflection film |
| US7918154B2 (en) | 2007-03-12 | 2011-04-05 | Smc Kabushiki Kaisha | Pressure booster |
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