The Ultimate SWaP-Optimized Shutter for 640×512 Detectors
In the race toward smaller, lighter, and more power-efficient thermal camera cores, every millimeter and every gram matters. KUYANG’s new 21x21mm ultra-slim mechanical shutter sets a new benchmark in NUC calibration — delivering the largest aperture in the smallest size
Key Specifications
| Parameter | Specification |
| Overall Dimensions | 21mm x 21mm x 3.5mm |
| Clear Aperture | 11.1mm x 9.8mm |
| Drive Voltage | 3.3V DC |
| Coil Resistance | 16 ohm +/- 10% (at 25C ambient) |
| Blade Assembly | 4 high-extinction PET blades |
| Detector Compatibility | 640×512 / 12um, 10um, 8um |
What Makes It Exceptional
1. Industry-Leading Aperture-to-Out size
11.1mm x 9.8mm aperture within a 21mm x 21mm outsize. Contribute for smaller size with 640×512 resolution.
2. Ultra-Slim 3.5mm Profile
Just 3.5mm thick, contributing to the compact design of thermal imaging modules
3. 4-Blade PET High-Extinction Design
4pcs of PET blades with superior light extinction ensure absolute dark-reference accuracy during NUC calibration. No stray light. No crosstalk. Pure calibration integrity.
4. Broad Detector Compatibility
Fully compatible with 640×512 detectors across 12um, 10um, and 8um pixel pitches — covering the full range of current and next-generation WLP microbolometers.
5. Low-Voltage, Low-Power Operation
3.3V DC drive with 16 ohm coil resistance means minimal power draw and negligible thermal noise contribution to your system.
Application Scenarios
| Application | KUYANG Shutter Advantage |
| Drone Thermal Cameras | 21x21mm Dimensions + 3.5mm thickness — the ideal match for SWaP-constrained drone gimbals |
| 21x21mm Thermal Camera Modules | Form-factor matched — plug directly into standardized micro-core housings |
| Night Vision Devices | High-extinction blades deliver flawless dark-field reference in total darkness |
| Thermal Imaging Sights / Scopes | Quiet, reliable actuation for tactical and hunting environments |
About KUYANG
KUYANG is a specialized manufacturer deeply rooted in the infrared thermal imaging industry, focused exclusively on high-performance shutter solutions for NUC calibration.
40 Years of Precision Engineering
- — We don’t just assemble; we design and optimize every electromagnetic circuit and blade geometry in-house.
Full Vertical Integration
- — From solenoid windings to PET blade coating, critical components are manufactured in our own facilities, ensuring batch-to-batch consistency.
Comprehensive Customization
- — Structural dimensions, electrical parameters, aperture geometry, and mounting interfaces — all available under full ODM/OEM service.
Wherever your thermal core is headed, KUYANG has the shutter to match.
REQUEST THE 21x21mm DATASHEET, 3D STEP FILES & SAMPLE
Web: www.ky-ele.com Email:kuma@ky-ele.com