DOCTER DOCTER®nightvision 1x24 - Manual (Page 19)

14
Magnification
1.0
Objective aperture Ø [mm] 24
Field of view [m/100m] 67
Objective field of view angle [°] 37
Subjective field of view angle [°] 42
Exit pupil distance [mm] 25
Exit pupil Ø [mm]
5 (within a circular diameter of
10mm)
Distance adjustment [m] 0.4 to infinite
Dioptre compensation [dpt] ± 4
Distortion [%] 4.5, pincushion-shaped
Objective
telecentric, 8 lenses in 6 groups
with cover glass, broadband
VIS/IR-AR coating
Eyepiece
4 lenses in 3 groups with cover
glass, broadband AR coating
Image intensifier Hamamatsu V6833 P
Intensification ≥ 10,000, typically 40,000
Resolution in the entire image circle [LP/mm] 50 at min.; typically 64
Range assignment/identification [m] 200 / 40
S/N (signal/noise ratio) typically 25
Light sensitivity [µA/lm] typically 1,200 (1000 at min.)
Image intensifier service life
approx. 10, 000 hours of
operation
Power supply
1.5V from AA; LR6; Mignon or
3V from equivalent type of
construction
Power consumption typically 40mA, 60mA at max.
Power consumption in disconnected condition
≤ 1µA
Duration of operation approx. 40 hours
Electromagnetic compatibility [EMC] Complies with EN61326-1
RoHS
Compliant, except image
intensifier
Tightness watertight up to 1 m
Functional temperature range [°C] -20 to +40
Storage temperature range [°C] -40 to +60
Connecting options [mm] Casing:
-
Tripod base ¼“ ISO 1222
-
Ø 44d10 (outer diameter)
Lens:
-
M37x0.75 ( female thread)
-
M39x0.5 (male thread, shock
protector removed)
Eyepiece:
-
M42x0.75 (male thread,
eyecup removed)
Dimensions (l x w x h) [mm] 168 x 65 x 44
Total weight, incl. battery [g] 480