Silicon Windows / Lenses
Material:
Silicon
Thickness:
+/-0.2mm
Surface Flatness:
N<1λ
Coating:
Uncoated,
AR/AR@3-5um, Ravg<2.0%
Diameter Tolerance:
+0.0,-0.1mm
Surface Quality:
80/50~40/20
Parallelism:
<2′
Silicon and Germanium lens: for infrared measurement devices for non-contact temperature measurement, including stationary IR thermometers, and infrared cameras for point of Care Testing (POCT) devices.
Silicon Windows offers high thermal conductivity and low density, making it suitable for laser windows. However, since silicon has a strong absorption band at 9 µm, it is not suitable for use with CO2 laser transmission applications.
wdt_ID Attributes Value
1
Material
Silicon
15
Dimension Range
Diameter: 3~300mm
Thinckness:1~50mm
16
Tolerance
+/-0.01mm or customize
17
Surface Quality
80/50~40/20 or customize
18
Surface Flatness
N＜1λ or customize
19
Clear Aperture
>90%
20
Parallelism
＜10”
21
Chamfer
Protective ＜0.5mm x 45°
37
Coating
Uncoated
AR Coating
DLC coating
| wdt_ID | Attributes | Value |
|---|---|---|
| 1 | Material | Silicon |
| 15 | Dimension Range | Diameter: 3~300mm Thinckness:1~50mm |
| 16 | Tolerance | +/-0.01mm or customize |
| 17 | Surface Quality | 80/50~40/20 or customize |
| 18 | Surface Flatness | N＜1λ or customize |
| 19 | Clear Aperture | >90% |
| 20 | Parallelism | ＜10” |
| 21 | Chamfer | Protective ＜0.5mm x 45° |
| 37 | Coating | Uncoated AR Coating DLC coating |
-
Dimension and shape can be customized, such as: Circular, Square, Triangle or others.
Within the range of 1.2-8um, Silicon is the most commonly used material for fabricating high infrared imaging system.
- Thermal imager
- Infrared temperature instrument
- Long pass filter (for wavelengths greater than 2 µm)
- Night sight
- Laser mirror
- Armament
- Space satellite
- High transmittance at 1.2-8 um
- Light weight, low density, high hardness, suitable for weight sensitive applications / Knoop hardness: 1100 kg / mm2, density: 5.27 g / cm3
- High refractive index (3.4 at 3-5um)
wdt_ID Part No. Material S/D dia (mm) Thickness Coating
27
WIN5101
Silicon
60/40
10.0
1.0
None
90
WIN51252
Silicon
60/40
12.5
2.0
None
91
WIN51272
Silicon
60/40
12.7
2.0
None
92
WIN5252
Silicon
60/40
25.0
2.0
None
93
WIN52542
Silicon
60/40
25.4
2.0
None
94
WIN5402
Silicon
60/40
40.0
2.0
None
135
WIN5503
Silicon
60/40
50.0
3.0
None
136
WIN51011
Silicon
60/40
10.0
1.0
AR/AR@3-5um, Ravg＜2.0%
137
WIN512521
Silicon
60/40
12.5
2.0
AR/AR@3-5um, Ravg＜2.0%
138
WIN512721
Silicon
60/40
12.7
2.0
AR/AR@3-5um, Ravg＜2.0%
139
WIN52521
Silicon
60/40
25.0
2.0
AR/AR@3-5um, Ravg＜2.0%
140
WIN525421
Silicon
60/40
25.4
2.0
AR/AR@3-5um, Ravg＜2.0%
141
WIN54021
Silicon
60/40
40.0
2.0
AR/AR@3-5um, Ravg＜2.0%
142
WIN55031
Silicon
60/40
50.0
3.0
AR/AR@3-5um, Ravg＜2.0%
| wdt_ID | Part No. | Material | S/D | dia (mm) | Thickness | Coating |
|---|---|---|---|---|---|---|
| 27 | WIN5101 | Silicon | 60/40 | 10.0 | 1.0 | None |
| 90 | WIN51252 | Silicon | 60/40 | 12.5 | 2.0 | None |
| 91 | WIN51272 | Silicon | 60/40 | 12.7 | 2.0 | None |
| 92 | WIN5252 | Silicon | 60/40 | 25.0 | 2.0 | None |
| 93 | WIN52542 | Silicon | 60/40 | 25.4 | 2.0 | None |
| 94 | WIN5402 | Silicon | 60/40 | 40.0 | 2.0 | None |
| 135 | WIN5503 | Silicon | 60/40 | 50.0 | 3.0 | None |
| 136 | WIN51011 | Silicon | 60/40 | 10.0 | 1.0 | AR/AR@3-5um, Ravg＜2.0% |
| 137 | WIN512521 | Silicon | 60/40 | 12.5 | 2.0 | AR/AR@3-5um, Ravg＜2.0% |
| 138 | WIN512721 | Silicon | 60/40 | 12.7 | 2.0 | AR/AR@3-5um, Ravg＜2.0% |
| 139 | WIN52521 | Silicon | 60/40 | 25.0 | 2.0 | AR/AR@3-5um, Ravg＜2.0% |
| 140 | WIN525421 | Silicon | 60/40 | 25.4 | 2.0 | AR/AR@3-5um, Ravg＜2.0% |
| 141 | WIN54021 | Silicon | 60/40 | 40.0 | 2.0 | AR/AR@3-5um, Ravg＜2.0% |
| 142 | WIN55031 | Silicon | 60/40 | 50.0 | 3.0 | AR/AR@3-5um, Ravg＜2.0% |
Related Resource for reference
Overview
• Transmittance of IR glasses
• Comparison IR vs. Visible glasses
• Properties of some common IR glasses
– Germanium
– Silicon
– Zinc Sulfide
– Zinc Selenide
– Magnesium Fluoride
– Sapphire
• Concerns using lens design programs
• References OPTI 521 2
Materials for Infrared Optics
Related Products
Zinc Selenide (ZnSe) Windows / Lenses
BaF₂ Windows/Lenses
Germanium Windows/Lenses
