SQL150/1.1
Lens for Cameras in Barrel
SQL150/1.1
The SQL150/1.1 is a high-performance infrared (IR) optical lens assembly
engineered for integration into thermal imaging modules and professional infrared surveillance systems.
Constructed from precision-ground optical germanium elements and housed in a robust
aluminum barrel, the lens delivers exceptional IR transmission, mechanical stability,
and long-term operational reliability under harsh environmental and industrial conditions.
Designed as a three-element infrared optical system, the SQL150/1.1 provides optimized
transmission within the 7–14 μm spectral range. The internal optical group compensates for
aberrations and ensures high image uniformity across the entire focal plane. When mounted onto thermal imaging
modules (via threaded connection), the lens accurately focuses incident infrared radiation onto the detector,
enabling reliable thermal visualization, monitoring, and real-time analysis.
Key Features
Advanced Infrared Optics
- Three germanium lenses optimized for 7–14 μm IR transmission
- High transmission efficiency: 89% (8–12 μm, HC coating)
- Zero spurious reflection for clean, high-contrast thermal imagery
- Precisely engineered optical design for aberration compensation
Motorized Focusing System
- Integrated miniaturized motor enabling automatic focus and focal length adjustment
- Maintains sharp focus throughout the entire motorized zoom range
- Adjustable focus time between 7–12 seconds
Ruggedized Industrial Construction
- Durable aluminum barrel withstands extreme temperatures and operational loads
- HAR (Hard Anti-Reflective) coating for abrasion resistance and minimal optical loss
- IP67 sealing ensures resistance to dust, moisture, and environmental contaminants
- Stable performance in severe operating conditions (industrial cycles, weather, vibration)
High Reliability in Harsh Environments
- Shock and vibration tolerance compliant with applicable industry standards
- Mechanical design suitable for continuous operation in mission-critical systems
- Wide operating temperature range: –40°C to +65°C
Applications
The SQL150/1.1 lens is widely used across multiple professional domains where precise infrared imaging is required:
Medical & Diagnostics
- Clinical thermography
- Epidemic prevention and fever screening
- Predictive maintenance of medical infrastructure
- Power system thermal diagnostics
Security & Surveillance
- Safe City infrastructure
- Critical facility protection
- Early fire detection
- Residential and industrial monitoring
- Surveillance under extreme weather or low-visibility conditions
Industrial Monitoring
- High-speed process control
- Assembly quality verification
- Machine and equipment thermal diagnostics
- Harsh-environment manufacturing analysis
Scientific & R&D
- Real-time thermographic research
- Experimental apparatus requiring stable long-range IR focusing
- Laboratory imaging applications
Technical Specifications
Optical Parameters
| Parameter | Value |
| Focal Length | 150 mm |
| F-Number | 1.1 |
| Spectral Transmission | 89% (8–12 μm, HC coating) |
| Spectral Range | 7–14 μm |
| Horizontal FOV | 4.7° |
| Spurious Reflection | None |
Mechanical Parameters
| Parameter | Value |
| Dimensions | 140 × 161 × 161 mm |
| Weight | ~1830 g |
| Focus Mechanism | Motorized, adjustable |
| Focusing Range | From 10 m |
| Depth of Field | 800 m |
| Focus Time | 7–12 sec (regulated) |
Environmental Parameters
| Parameter | Value |
| Operating Temperature | –40°C to +65°C |
| Storage Temperature | –40°C to +70°C |
| Seal Rating | IP67 |
| External Coating | Hard Anti-Reflective (HAR) |
| Mechanical Shock | Per applicable standard |
| Vibration Resistance | Per applicable standard |