FoldIR 30-450mm f/3.4 Motorized MWIR Zoom SXGA Imaging Lens
FoldIR 30-450mm f/3.4 Motorized MWIR Zoom SXGA Imaging Lens
Folded-optics zoom lens for advanced IR aerial platforms
Introducing the FoldIR 30-450mm f/3.4 continuous zoom lens with Ophir's innovative folded optical design, offering lightweight, compact design while maintaining long optical lengths and improved tolerance sensitivity. This design ensures exceptional performance even in challenging environments, addressing stabilization and athermalization issues.
Its unique f/3.4 aperture guarantees superior image quality, surpassing larger aperture zoom lenses in diffraction limit MTF and IR signal collection.
The lens features a built-in mechanical shutter for NUC control, enhancing image quality through Ophir's control system.
Weighting 2kg, offering an impressive detection range of over 20km, and a horizontal field-of-view of 26.9º (WFOV) and 1.7º (NFOV). This compact, lightweight, long-range, high-performance lens is the ultimate selection of for optical air-land-sea optical gimbals and payloads.
Key features
- Meets low SWaP demand with long EFL
- Efficient folded optics design for max. volume use
- Designed for MWIR 10 μm pitch 640x512 sensors
- Ideal for mini/ micro tactical payloads
- Detection range exceeds 13 km for vehicle (2.3x2.3 m) 查看所有功能
HFOV [deg]
WFOV (30mm)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | 1280x720 | 1280x1024 |
| 15 µm | 19.3º | ||
| 10 µm | 12.5º | 26.9º | 26.9º |
NFOV (450)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | 1280x720 | 1280x1024 |
| 15 µm | 1.3º | ||
| 10 µm | 0.8º | 1.7º | 1.7º |
规格
- 型号Continuous Zoom
- 焦距30-450mm
- F/#3.4
- 平均透过率(3.4-4.2μm) 80% (HC)
- 冷停 FPA 距离19.4mm
- 冷停通光孔径Ø5.7mm
- 最小对焦范围20m(WFOV) 50m(NFOV)
- Nuc（通过散焦）By integrated shutter or defocus
- 聚焦机制Motorized
- 变焦机制Motorized
- 重量2kg
- 尺寸Ø146 x 247mm
- 驱动电压12V
- 电流损耗0.5A average, 1.0A peak
- 通信接口RS422, RS232
- 工作温度范围-20ºC to +55ºC
- 存储温度范围-40ºC to +70ºC
- 密封IP67 front element only
- 波长范围MWIR
功能
FoldIR 30-450mm f/3.4 Detection, Recognition & Identification (DRI) Range
DRI ranges enable one to easily estimate the maximum range that an object can be either detected, recognized or identified. It is important to note that these estimates are based solely on geometrical parameters – the target size, distance, lens focal length and camera detector pixel size. Signal level, detector sensitivity, atmospheric conditions and other factors are not considered!
The calculations used here are based on the “Johnson Criteria”. According to the Johnson Criteria, the minimum resolution, pixels on target, required to achieve a 50% probability for an observer to discriminate an object are:
- Detection: An object is present – 2 pixels on target (Lower Bar)
- Recognition: discern the type of object, a human vs. a vehicle – 8 pixels on target (Middle Bar)
- Identification: discern specific objects, a man vs. a woman, a car model – 12.8 pixels on target (Upper Bar)
Introducing the FoldIR 30-450mm f/3.4: high performance, long-range, ideal for small size gimbals
资源
Data Sheets
FoldIR 30-450mm f/3.4 Data Sheet(212.4 kB, PDF) FoldIR 30-450mm f/3.4 Product Overview(1.1 MB, PDF)
