Ultra-compact SWIR design for defense applications::20Times500mm zoom lens
Model: SK40/20-500SWIR
Compatible sensor:IMX991 IMX990
Spectral transmission range:400nm-1700nm
Focal Length Range: f25mm - 500mm
Image Format: φ16.6mm
Maximum resolution:2 MP
Focus mode: Parfocal design
Dimensions: L 197mm× W 80mm× H 80mm
Main features and advantages
Defense applications · Research applications · Lightweight · Compact · 2 MP resolution · 4K resolution · 2K resolution · Broad spectrum · Chromatic-aberration correction · Multispectral · Impact resistance · Fixed focus · High optical-axis consistency · Standardization · Product family standardization · Digital control · Support customization · Manufactured in China · Mature and reliable
I. Product Model
SK40/20-500SWIR
II. Main Optical Specifications
Focal Length Range: f25–500 mm
Zoom ratio: 20×
Image size: φ16.6mm (adapted to 1″ sensor)
Relative aperture: F7.1 (wide-angle end) – F13.3 (telephoto end)
Spectral transmission range: 400nm-1700nm
III. Imaging performance indicators
Pixel definition: ≥3.05μm
Maximum resolution: 2 MP (based on 1″ 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 197mm× 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
