74-series Collimating Lenses
Prices may vary, see options below
Single and Achromatic Lenses
Collimating lenses are curved 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.
Each 74-series lens is 5 mm in diameter, has focal length of 10 mm and is responsive at UV-Vis or Vis-NIR wavelengths. An achromatic lens option (74-ACR) corrects for spherical and chromatic aberrations.
Collimating lenses are common to most of the sampling accessories we offer. As such, these lenses are used for an extensive array of applications and measurement techniques including absorbance, irradiance and emission.
- Versatile – lenses optimized for the UV-Vis (200-2000 nm) or Vis-NIR (350-2000 nm)
- Rugged – stainless steel barrel with black oxide finish
- Fiber optic – couple to optical fibers or spectrometers
- Adjustable – position lenses for converging to diverging FOV (~25°)
|Type:||Single lens||Single lens||Single lens, direct-attach||Achromatic doublet|
|Diameter:||5 mm||5 mm||5 mm||5 mm|
|Focal length:||10 mm||10 mm||10 mm||10 mm|
|Lens material:||f/2 fused silica Dynasil||f/2 BK-7 glass||f/2 fused silica Dynasil||f/2 BaF10 and FD10 fused silica|
|Wavelength range:||200-2000 nm||350-2000 nm||200-2000 nm||350-2000 nm|
|Operating temperature:||150 °C||150 °C||150 °C||150 °C|
|Connector:||SMA 905, 6.35 mm ferrule||SMA 905, 6.35 mm ferrule||SMA 905||SMA 905, 6.35 mm ferrule|
|Connector threads:||3/8-24 external thread||3/8-24 external thread||3/8-24 external thread||3/8-24 external thread|
|1/4-36 internal thread|
|Connects to:||Optical fiber||Optical fiber||Spectrometer||Optical fiber|
Applications in which this product is used:
- How do I determine the spot size and focal length of my setup?
- What is the field of view (FOV) of Ocean Optics optical fibers?
- How do I connect my FC-terminated fiber to an accessory or lamp?
- What is an achromatic collimating lens and why would I use one?
- How do I determine divergence in single lens systems?