Collimating lenses are optical lenses that help to make parallel the light that enters your spectrometer setup. These lenses allow users to control the field of view, collection efficiency and spatial resolution of their setup, and to configure illumination and collection angles for sampling. Single and achromatic lenses are available.
Ocean Optics collimating lenses can be attached to the spectrometer, coupled to optical fibers or integrated into sampling accessories. Most lenses have an inner barrel threaded for SMA 905 connectors. The inner barrel slides relative to the lens fixture for adjusting the focus; a setscrew secures the barrel.
Collimating Lens Options at a Glance
Our 74-series standard diameter collimating lenses are available in single and achromatic options. Each lens is 5 mm in diameter and has focal length of 10 mm.
|Item||74-UV and 74-VIS||74-ACR||74-DA|
|Wavelength Range||200-2000 nm (74-UV)
350-2000 nm (74-VIS)
|350-2000 nm||200-2000 nm|
|Distinguishing Features||Identified by single white (74-UV) and yellow dot (74-VIS) on the barrel||Achromatic doublet comprises two lenses and corrects for spherical and chromatic aberrations||Attaches directly to spectrometer|
For applications requiring a larger diameter lens with longer focal length, we offer two single-lens options: