JPS55110201A - Antireflection lens - Google Patents
Antireflection lensInfo
- Publication number
- JPS55110201A JPS55110201A JP1765079A JP1765079A JPS55110201A JP S55110201 A JPS55110201 A JP S55110201A JP 1765079 A JP1765079 A JP 1765079A JP 1765079 A JP1765079 A JP 1765079A JP S55110201 A JPS55110201 A JP S55110201A
- Authority
- JP
- Japan
- Prior art keywords
- antifogging
- layer
- antireflection
- lens
- effects
- 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
Abstract
PURPOSE: To obtain the lens which combines both of antireflecting effect and antifogging effect by attaching an antifogging coating film of thickness λ/4 on the uppermost part of the surface of the lens.
CONSTITUTION: The antifogging layer is attached at thickness λ/4 on the layer 2 of the antireflection lens. When a substrate 1 is glass, MgF2 of refractive index 1.38 is generally attached as the layer 2, but as the antifogging coat, the refractive index is roughly about 1.35W1.50 and therefore, this layer has higher reflection than the MgF2 single layer coat depending upon cases but it has the performance provided with both of antireflection and antifogging effects. Further even in the case of, e.g., the multicoats of three layers type, the substitution of the uppermost layer 5 with the antifogging film provides the film having two effects of antireflection and antifogging effects. By attaching the antifogging coat film of thickness λ/4 on the uppermost part of the surface of the lens in this way, the two effects of antireflection and antifogging may be provided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1765079A JPS55110201A (en) | 1979-02-16 | 1979-02-16 | Antireflection lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1765079A JPS55110201A (en) | 1979-02-16 | 1979-02-16 | Antireflection lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110201A true JPS55110201A (en) | 1980-08-25 |
Family
ID=11949723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1765079A Pending JPS55110201A (en) | 1979-02-16 | 1979-02-16 | Antireflection lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110201A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6287683B1 (en) * | 1997-04-09 | 2001-09-11 | Canon Kabushiki Kaisha | Anti-fogging coating and optical part using the same |
-
1979
- 1979-02-16 JP JP1765079A patent/JPS55110201A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6287683B1 (en) * | 1997-04-09 | 2001-09-11 | Canon Kabushiki Kaisha | Anti-fogging coating and optical part using the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57181503A (en) | Heat ray reflecting film | |
DK1099126T3 (en) | Transparent substrate with low-emitting or sun-protective anti-reflective coating | |
JPS5522704A (en) | Multilayer antireflecting film | |
GB1332665A (en) | Multi-layer antireflection coating | |
JPS56116003A (en) | Optical part of synthetic resin having reflection preventing film | |
US4497539A (en) | Antireflection optical coating | |
US4988164A (en) | Anti-reflection film for synthetic resin optical elements | |
JPS5498257A (en) | Aspherical antireflection film | |
JPS57139701A (en) | Reflection preventing film of plastic optical member | |
JPS641527A (en) | Preparation of reflection protectable product | |
JPS55110201A (en) | Antireflection lens | |
JP2000347002A5 (en) | ||
JPS54101345A (en) | Electrochromic element of less reflection loss | |
JPS5689701A (en) | Half mirror | |
JPS5745501A (en) | Reflection preventing film of metal | |
JPS54110855A (en) | Dichroic film | |
JPS57138602A (en) | Antireflection film | |
JPS53110541A (en) | Half mirror | |
JPS5694301A (en) | Multilayered antireflection film | |
JP2624827B2 (en) | Half mirror | |
JPS5647001A (en) | Optical system | |
JPS56162702A (en) | Manufacture of reflecting mirror | |
JPS5666802A (en) | Antireflection film of optical parts made of synthetic resin | |
JPS54156650A (en) | High durability mirror | |
JPS6461702A (en) | Antireflecting film |