Collimator: Thorlabs AC508-180-AB-ML
The collimating lens is a mounted 2-inch achromatic doublet with a nominal
effective focal length of 180 mm. The AB antireflection coating is specified
for 400–1100 nm, covering the intended visible and near-infrared spectrograph
band.
Property |
Value |
|---|---|
Diameter class |
50.8 mm (2 inch) |
Effective focal length |
180 mm |
Lens type |
Achromatic doublet |
Antireflection coating |
AB, 400–1100 nm |
Mechanical format |
Mounted lens ( |
Throughput-model limitation
The shared-data collimator throughput curve includes an estimated 360 nm point below the manufacturer’s 400–1100 nm coating range. Simulator and ETC predictions below 400 nm should therefore be treated as extrapolations rather than catalog-validated collimator performance.