FOV Expansion Kit
The FOV expansion development kit combines the MR15-30 fast steering mirror with the EL-16-40 liquid lens to enable high-resolution imaging over a large field of view (FOV). It contains two imaging systems: a wide-angle objective for an overview of the entire field, and a narrow-angle objective (50mm or 75mm) for high-resolution imaging within a region of interest. The fast steering mirror scans and deflects the field of view, while the liquid lens provides rapid focusing. Included software demonstrates suitability for security surveillance and inspection, with functions including detection, facial recognition, autofocus, and region-of-interest selection. The mechanical diagram of the FOV expansion development kit (dimensions in mm) shows two cameras, a focus-tunable liquid lens, and a fast steering mirror, excluding cables and drivers. The kit can be mounted using M4 optical posts or two M6 through-holes. The kit includes: Fast steering mirror, MR-E-3 main unit (DVIS); Fast steering mirror controller, MR-E-3 base unit; Focus-tunable lens, EL-16-40-TC-VIS-5D, with embedded ECC-1C controller; 2 industrial cameras, Daheng MER2-302-56U3C; Wide-angle objective, 4mm; Narrow-angle objective, 50mm or 75mm; USB-to-UART cable, Hirose connector, 1m long; 2 USB3 data cables, 3m long; Black-anodized aluminum mounting kit (position finely adjustable along the optical axis); Aluminum-alloy housing for transporting the complete kit. Standard Product Overview: FOV expansion development kit (50 mm), objective focal length 50 mm; FOV expansion development kit (75 mm), objective focal length 75 mm. The following diagram illustrates how the fast steering mirror enables high-resolution imaging over a large area. The narrow field formed by a fixed-focal-length lens (50 mm or 75 mm) and a camera can scan across the full angular range of the steering mirror while maintaining resolution. A comparison shows the achievable FOV on a plane at a distance of 1 m, where the narrow field can be deflected and scanned throughout the steering mirror travel range.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensions [Excluding drivers and cables] | 115 × 84 × 200 mm (excluding drivers and cables) |
| Weight [Excluding drivers and cables] | 650 g (excluding drivers and cables) |
| Mounting Method | M4 posts / M6 through-holes |
| Camera Cable Length | 3 m |
| Lens Cable Length | 1 m |
| Fast Steering Mirror Cable Length | 1 m |
| Resolution [50 mm Lens] | 6 mdeg |
| Resolution [75 mm Lens] | 4 mdeg |
| Wide-Angle Lens Focal Length | 4 mm |
| Wide-Angle Lens F-Number | f/2.0 |
| Wide-Angle Field of View [Horizontal × Vertical] | 67 × 84° ( Horizontal × Vertical ) |
| Narrow-Field Lens Focal Length | 50 mm or 75 mm |
| Narrow-Field Lens F-Number [50 mm / 75 mm] | f/2.8 |
| Narrow-Field Angle of View [50 mm Lens ; Horizontal × Vertical] | 8.2 ° × 6.1 ° |
| Narrow-Field Angle of View [75 mm Lens ; Horizontal × Vertical] | 5.5 ° × 4.1 ° |
| Focusing Range | 250 mm to infinity |
| Camera Parameters - Camera Model | Daheng MER2-302-56U3C |
| Camera Parameters - Image Sensor | Sony IMX265 CMOS（1/1.8"） |
| Camera Parameters - Resolution | 2048 pxl × 1536 pxl |
| Camera Parameters - Pixel Size | 3.45 µm × 3.45 µm |
| Camera Parameters - Sensor Size | 7.18 mm × 5.32 mm |
| Camera Parameters - Shutter Type | Global Shutter |
| Typical Total Power Consumption | 10 W |
| USB Current Requirement [5 V; powered USB Hub not included] | 1.5 A (@5 V, powered USB Hub not included) |
| Camera Interface | USB 3.0 |
| Steering Mirror Controller (MR-E-3) Interface | USB-C / USB 3.0 |
| Liquid Lens Controller Interface | Hirose / USB 2.0 (ECC-1C, with USB-to-UART interface) |
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