GermaniumWindows 11

Del Mar Photonics, Inc. 4119 Twilight Ridge San Diego, CA 92130 tel: (858) 876-3133 fax: (858) 630-2376 Skype: delmarphotonics sales@dmphotonics.com

Edmundwindow

Ge_CPPW_38.1_3_AR_DLC_8-12 - request a quote Material: Germanium optical grade Type: round plane parallel window Diameter: 38.1 mm (+/-0.1 mm) Thickness: 3 mm(+/-0.1 mm) Surface quality: 60/40 scr/dig Parallelism: < = 5 arc min Clear aperture: = > 90% of diameter Chamfers (protective): < = 0.25mm x 45 deg Coating: AR/DLC at 8-12 microns

Germanium Optics Window diam 25 - diam 25.4 - diam 38.1 Etalon - Germanium circular plane parallel etalon, diam 38.1 mm x 4 mm Germanium etalon Diameter: 0.50 inch Length: 2.00 inch Germanium Windows and Lenses for Thermography Germanium windows with 8-12 micron AR coating - 25.4 mm dia x 2 mm thick - 38.1 mm dia x 3 mm thick - 50.8 mm dia x 3 mm thick Germanium window 38.1 mm x 4 mm, coated 10.6 µm Infrared Germanium prism - 25.4x25.4x25.4 mm Germanium ATR Prism 52 x 20 x 2mm 45° 60 x 15 x 3mm 45° ATR Prism 60 x 15 x 3mm 60° ATR Prism Thermal camera housing - FLIR window Germanium windows for a pan tilt thermal imaging product - IR360 FLIR thermal imager Job opportunity: Manufacturing Manager

GermaniumWindows 12

The field of view FOV of an optical system is often expressed as the maximum angular size of the object as seen from the entrance pupil. The maximum image height is also used. For finite conjugate systems, the maximum object height is useful.Field of view FOV: the diameter of the object/image Half field of view HFOV: the radius of the object/image

The system FOV can be determined by the maximum object size, the detector size, or by the field over which the optical system exhibits good performance. For rectangular image formats, horizontal, vertical and diagonal FOVs must be specified.

Full field of view FFOV is sometimes used for FOV to emphasize that this is a diameter measure. Since the EP is the reference position for the FOV, this defining ray becomes the chief ray of the system.For distant objects, assuming a thin lens in air with the stop at the lens: