TPX-D50.8-f65
Plano-convex TPX lens with diameter 50.8 mm and focal length 65 mm for THz application
Description
The TPX-D50.8-f65 is a plano-convex TPX (Polymethylpentene) lens for THz waves. It can be used to focus a collimated THz beam.
Lens parameters:
material
TPX (Polymethylpentene)
refractive index n
1.45 @ 1 THz
absorption coeff. α
0.3 cm-1
focal length
65 mm (distance flat surface – focus)
outer lens diameter
5.80mm
free aperture diameter
47.8mm
maximum lens thickness
13 mm
edge lens thickness
4.1mm
aperture angle α
19.5 °
numerical aperture NA
0.33
Airy disc diameter
ν = 300 GHz
1.7mm
ν = 1 THz
0.5mm
ν = 3 THz
173um
Lens tube
outer diameter
30.5 mm
length
12.7 mm (½”) or 25,4 mm (1”)
Order information
Part number
Description
Photo
PX-D50.8-f65-0
Unmounted TPX lens with diameter
D = 50.8 mm and focal length
f = 65 mm
TPX-D50.8-f65-t12.7
Mounted TPX lens with diameter
D = 50.8 mm and focal length
f =65 mm, tube length 12.7 mm
TPX-D50.8-f65-t25.4
Mounted TPX lens with diameter
D = 50.8 mm and focal length
f = 65 mm, tube length 25.4 mm
描述 [描述] Plano-convex TPX lens with diameter 50.8 mm and focal length 65 mm<br />for THz application