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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]


What is the slope angle of a Gershun tube setup?

Another way to think of slope angle is as half the angular FOV. Essentially, you have a right angle with a height of r (radius) and width of L (distance from aperture plane to end of fiber). The angle is arctan (r/L). Since FOV is expressed as the full angle, the equation uses d (diameter) and is expressed as follows: FOV = arctan (d/L)