HDPE lens，THz lens
- Brand: Eachwave
- Type: HDPE lenses
HDPE is a lightweight elastic crystalline material. It can be heated to 110°C or cooled to -45 ÷ -120°C. PE has good dielectric properties, corrosion resistance and radiation resistance. However, it is not stable in ultraviolet and greasy conditions. Biologically, PE is very inactive and easy to deal with. At 23°C, the density is 0.91-0.925 g/cm3, the tension flow limit is 8-13 MPa, the elastic modulus is 118-350 MPa, and the refractive index is about 1.54 in a wide spectral range. Usually, high-density Sates (HDPE) are also used as component materials. In addition to being a thick lens and window mirror, the thin HDPE can also be used as a THZ polarizer.
Transmittance of HDPE in the terahertz band
feature：
- Frequency range covering THZ to far infrared, 7um -- 3mm (100GHz -- 43THz)
- High transmittance in the terahertz band range
- More stable physical and chemical properties
- Highly polarized and responsive
technical specification：
|
|
HDPE |
|
Type |
plano-convex, bi-convex |
|
frequency range |
100GHz-43THz |
|
fusing temperature ℃ |
220～260 |
|
degree of crystallinity |
80%～90% |
|
thermal conductivity/W·(m·K)-1 |
0.42 |
|
dielectric constant/F·m-1（106Hz） |
2.30～2.35 |
|
refractive index |
1.54 |
HDPE lenses：
|
Model |
Diameter（in） |
focal length（mm） |
|
EW-HDPE-1-19 |
1 |
19 |
|
EW-HDPE-1-25 |
1 |
25 |
|
EW-HDPE-1-50 |
1 |
50 |
|
EW-HDPE-1-75 |
1 |
75 |
|
EW-HDPE-2-75 |
2 |
75 |
|
EW-HDPE-3-75 |
3 |
75 |
|
EW-HDPE-3-100 |
3 |
100 |
|
EW-HDPE-1-150 |
1 |
150 |
|
EW-HDPE-3-150 |
3 |
150 |
|
EW-HDPE-1-200 |
1 |
200 |
|
EW-HDPE-3-200 |
3 |
200 |
|
EW-HDPE-1-250 |
1 |
250 |
|
EW-HDPE-2-250 |
2 |
250 |
|
EW-HDPE-3-250 |
3 |
250 |
|
EW-HDPE-1-300 |
1 |
300 |
|
EW-HDPE-2-300 |
2 |
300 |
|
EW-HDPE-1-350 |
1 |
350 |
|
EW-HDPE-3-350 |
3 |
350 |
|
EW-HDPE-1-400 |
1 |
400 |
|
EW-HDPE-2-400 |
2 |
400 |
|
EW-HDPE-3-400 |
3 |
400 |
Other specifications can be customized upon request
