AMIRAN®
AMIRAN® anti-reflective glass has a vast range of advantages over conventional float glass, offering negligible reflection, high light transmission and enviable durability. With a number of processing options, its qualities are extended further to produce one of our most versatile and popular glasses.
Specifications
| Max. net dimensions (min.) mm x mm |
Thick- ness mm |
Glass substrate |
Luminous reflectance ρvD65 % |
Luminous transmit- tance τvD65 % |
Color rendering index Ra |
Thermal transmit- tance Ug W/(m2·K) |
Total solar energy trans-mittance g % |
UV-trans- mittance τUV % |
||
|---|---|---|---|---|---|---|---|---|---|---|
| Technical properties for AMIRAN® processed glass | ||||||||||
| AMIRAN® | 3,770 x 1,770 |
4, 6, 8,
10, 12
|
Extra-clear low-iron
float glass |
1
|
98 |
100 |
5.8 |
90 |
63 |
|
| AMIRAN® Thermally toughened safety glass, heat strengthened glass |
||||||||||
| AMIRAN® LSGwith a PVB film |
3,770 x 1,770 | Dependant on assembly | Extra-clear low-iron float glass | 1 |
97 |
100 |
5.7 |
89 |
1 |
|
Convential glass in comparison
| Max. net dimensions (min.) mm x mm |
Thick- ness mm |
Glass substrate |
Luminous reflectance ρvD65 % |
Luminous transmit- tance τvD65 % |
Color rendering index Ra |
Thermal transmit- tance Ug W/(m2·K) |
Total solar energy trans-mittance g % |
UV-trans- mittance τUV % |
|
|---|---|---|---|---|---|---|---|---|---|
| Thermally toughened safety glass |
Dependant |
Dependant on the manufacturer |
Float glass | approx. 8 | 90 | 98 | 5.8 | 86 | 62 |
| Extra-clear low-iron float glass | approx. 8 |
91 |
99 |
5.8 |
91 |
84 |
|||
| Insulating glass | Dependant on the manufacturer |
Dependant on the manufacturer |
Float glass | approx. 15 | 80 | 97 | 2.6 | 75 | 39 |
| Extra-clear low-iron float glass | approx. 15 |
84 |
99 |
2.6 |
83 |
72 |
Anti-reflective properties
AMIRAN® anti-reflective glass is a float glass with optical interference properties coated on one or both sides to minimize surface reflections. A special immersion procedure is used to apply multiple metal oxide layers just nanometers thick. Reflections are reduced optically by up to 90% and the glass appears invisible. At a transmission of > 98%, viewers can then focus on what’s important.
Advantages of SCHOTT AMIRAN®
- Luminous reflectance of 0.9%
- Appears invisible
- Neutral in color
- High transmission
- Color rendering index of Ra = 100
Float vs. anti-reflective glass
Conventional float glass has dependable but limited optical properties. At just 91% transmission, a significant amount of light is lost. The smaller share of this (approximately 1%) is absorbed by the glass itself. The other 8% is reflected by the glass surface. This reflection is perceived as highly inconvenient, especially in applications which require clear viewing. Surface finishing can help here.
Disadvantages of float glass
- Luminous reflectance of 8%
- Undesirable reflections
- Lower transmission
- Colors appear drab
- Displays art with unsophisticated colors
 Float Glass |
 Anti-reflective glass |
Tests and cleaning
SCHOTT invests a great deal of time and effort to ensure that art lovers around the world have an uninterrupted view of their favorite pieces. The result is a high-tech, anti-reflective art glass of the highest quality with a surface that is extremely stable, easy to clean and highly resistant to abrasion.
Benefits of SCHOTT dip-coated glass
- Burned-in surface coating
- Highly resistant to abrasion
- Extremely stable
AMIRAN® is also mechanically robust and highly resistant to chemicals, delivering durable performance in every application. Key properties include:
- High mechanical durability proven by international standards
- Easy handling and processing
- Robust surface for daily cleaning cycles
Testing
AMIRAN® undergoes a series of rigorous tests, split into mechanical and chemical:
Mechanical tests
- The Tesa Test highlights the durability against the forces of adhesive tape being ripped from the coating.
- Taber Abrasion Test, which tests the abrasion resistance of the coating.
- The Pencil Hardness Test checks scratch resistance. Here AMIRAN® achieved class 9H, a significantly higher score than other anti-reflective surfaces.
- The Cheesecloth Test is a good indicator of the resistance of the coating. It’s based on DIN ISO 9211-4 and simulates moderate abrasion. In this test, a cushion of gauze is pressed onto a coated surface with a certain force and then moved several times. The surface is then checked for damage. Competing products are 95% worse than SCHOTT products in this test.
Chemical tests
- Standardized CASS (Copper-accelerated Acid Salt Spray) test
- NSS (Neutral Salt Spray) test, which examines the anti-corrosive coating
