TPX-D50-f35
Plano-convex (elliptic) TPX lens with diameter 50 mm and focal length 35 mm for THz application
Description
The TPX-D50-f35 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
35 mm (distance flat surface – focus)
outer lens diameter
50mm
free aperture diameter
47mm
maximum lens thickness
18 mm
edge lens thickness
3mm
aperture angle α
32.5 °
numerical aperture NA
0.54
Airy disc diameter
ν = 300 GHz
950um
ν = 1 THz
284um
ν = 3 THz
95um
Lens tube
outer diameter
55.9 mm
length
12.7 mm (½”) or 25,4 mm (1”)
Order information
Part number
Description
Photo
PX-D50-f35-0
Unmounted TPX lens with diameter
D = 50 mm and focal length
f = 35 mm
TPX-D50-f35-t12.7
Mounted TPX lens with diameter
D = 50 mm and focal length
f =35 mm, tube length 12.7 mm
TPX-D50-f35-t25.4
Mounted TPX lens with diameter
D = 50 mm and focal length
f = 35 mm, tube length 25.4 mm
描述 [描述] Plano-convex (elliptic) TPX lens with diameter 50 mm and focal length 35 mm<br />for THz application