Ultra-compact SWIR design for defense applications:20×300mm zoom lens
Model Number: SK40/20-300SWIR
Compatible Sensor: IMX991 IMX990
Spectral transmission range:400nm-1700nm
Focal Length Range: f15mm - 300mm
Image Format: φ10.1mm
Maximum Resolution: 3 MP
Focus mode: Parfocal design
Dimensions: L 177mm× W 80mm× H 80mm
Product details
Changchun Zhongyou Technology Co., Ltd. Short-wave infrared: 40 millimeter diameter series 20× zoom 300 millimeter motorized zoom lens technical specifications
I. Product Model
SK40/20-300 SWIR
II. Main Optical Specifications
Focal Length Range: f15–300 mm
Zoom ratio: 20×
Image size: φ10.1mm (adapted to 1/1.6″ sensor)
Relative aperture: F4.3 (wide-angle end) – F8.1 (telephoto end)
Spectral transmission range: 400nm-1700nm
III. Imaging performance indicators
Pixel definition: ≥5μm
Maximum resolution: 3 MP (based on 1/1.6″ image sensor format)
Optical-axis stability: ≥3 pixels (based on 4μm pixel pitch)
IV. Control system
Zoom mode: motorized zoom/preset zoom
Focus mode: motorized focus/auto focus/fixed focus
Back-focus adjustment: ±4 mm
Position feedback: magnetic encoder
Feedback accuracy: ±5%
Power supply: DC12V,＜10W
V. Structural design
Mechanical interface: standard C-mount (custom interfaces available)
Overall dimensions: length 177mm× width 80mm× height 80mm
Overall machine weight: > 0.95kg (including drive mechanism)
VI. Environmental Specifications
Shock resistance: GJB150.18A-2009
Vibration resistance: GJB150.16A-2009
Operating temperature: -45°C – +60°C
VII. Optional Functions
Filter system: motorized 2/3/4-position switching
Control interface: RS422
Technical support: Dong You Telephone/WeChat 13331697285 Email: xianglongduan1998@gmail.com
Data Release Date: July 1, 2026
