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Ocean Optics
Worldwide Headquarters
Largo, Florida, USA

+1 727-733-2447

[email protected]

Sales, Service
& Support Facility
Duiven, The Netherlands

+31 26-319-0500
+33 442-386-588

[email protected]

Ocean Optics GmbH Sales,
Service & Support Facility
Ostfildern, Germany

+49 711-34-16-96-0

[email protected]

Sales Support
for the
United Kingdom

+44 1865-819922

[email protected]

Sales, Service
& Support Facilities
Shanghai, PRC – Beijing, PRC

+86 21-6295-6600

[email protected]


Gershun Tube

The Gershun tube kit is used to control the field of view from 1° to 28° of an Ocean Optics SMA 905-terminated fiber or a spectrometer. The kit is coupled to the optical fiber using its adapter barrel or attaches directly to the connector on our spectrometers.

Each Gershun tube assembly comprises a conical-shaped base, a middle barrel and an outer barrel that can be threaded together. User-interchangeable apertures can be used to adjust field of view of the sampling setup. Apertures are held in place by a threaded retaining ring and are easily reassembled.


GER-KIT with USB2000+

Gershun Tube

Attached to USB2000+ spectrometer