Third-generation Image Intensifier Tube
1. Composition and function:
(1) Phosphor type: P43/P45;
(2) Auto-gated function;
(3) Automatic brightness control (ABC) function;
(4) Electrical connection method: double contact plate;;
(5) Output window: inverted spherical type (SR40).
2. Technical requirements：
(1) Integral sensitivity: ≥1200μA/lm;
(2) Ultimate resolution: ≥51lp/mm;
(3) Signal-to-noise ratio (@108μlx): ≥22;
(4) Brightness gain: 11000cd/m²/1x~16000cd/m²/lx;
(5) Maximum output brightness: 4cd/m²~12cd/m²;
(6) Effective cathode diameter: ≥17.5mm;
(7) Field of view cleanliness requirements: The maximum number of black spots (bright spots) of different sizes allowed in each partition should meet the requirements of the following table.
|
Black Spots/μm
|
Φ5.6mm
|
Φ5.6mm～D14.7mm
|
Φ14.7mm~Φ17.5mm
|
|
≥381
|
0
|
0
|
1
|
|
305～381
|
0
|
1
|
1
|
|
152～229
|
0
|
2
|
2
|
|
76～152
|
1
|
3
|
3
|
(8)Defects visible to the human eye are allowed within the field of view: stripes, shadows, black lines, and white lines.
