LightIR 20–275mm f/5.5 MWIR Motorized Continuous Zoom Lenses
LightIR 20–275mm f/5.5 MWIR Motorized Continuous Zoom Lenses
Low-SWaP MWIR zoom lens with long-range detection capability
The LightIR 20-275mm f/5.5 at only 264 g, this is the smallest, most lightweight continuous zoom lens on the market, with long-range capabilities of up to 14.9 km detection range. Featuring an innovative and unique optomechanical design and focus movement. The end result is the highest thermal imaging performance on the market, ideal for stabilized payloads in a variety of drones, UAVs, and handheld devices for SWaP applications.
- Smallest, most lightweight continuous zoom lens on the market
- Long-range capabilities of up to 14.9 km detection range
- Unique optomechanical design and focus movement
- High-durability and low reflection hard-carbon 3-5 µm wavelength AR coatings 查看所有功能
HFOV [deg]
WFOV (20 mm)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | ||
| 15 µm | 28.0° | ||
NFOV (275 mm)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | ||
| 15 µm | 1.9° | ||
规格
- 型号Continuous Zoom
- 焦距20 to 275 mm
- F/#5.5
- 光谱范围3.4 to 5.0 μm
- 冷停 FPA 距离19.7 mm
- 冷停通光孔径Ø3.52 mm
- 背向焦点尺寸23.52 mm in air
- 最小对焦范围5 m Wide, 50 m Narrow
- Nuc（通过散焦）Yes
- 聚焦机制Motorized
- 变焦机制Motorized
- Through-zoom BoresightWithin a radius of 0.15 mm at the focal plane
- 重量264 g
- 尺寸Ø58 mm x 67.1 mm
- 驱动电压12 VDC
- 电流损耗0.2 A average, 1.0 A peak
- 通信接口RS485, RS422
- 工作温度范围-32°C to + 70°C
- 存储温度范围-40°C to +80°C
- 密封IP 67 front element only
- 波长范围MWIR
功能
LightIR 20-275mm f/5.5 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)
High Performance Mid-Wave Focal Plane
Using advanced technologies, top-quality materials and unique coating techniques, together with innovative engineering and opto-mechanical designs, we have earned a reputation for excellent performance, durability and quality.
光学镀膜
我公司的高耐磨增透膜（AR），以及多种类型的硬碳膜（HC）拥有最高耐用性、能量传输及最小反射率。
- 物理气相沉积（PVD）– 热熔性和电子枪
- 离子辅助沉积（IAD）– 离子枪
- 等离子增强化学气相沉积（PECVD），适用于DLC镀膜
Passive Athermalized Lens Assembly
Our IR imaging lens assemblies incorporate passive athermalization of the lenses and opto-mechanical system to maintain the highest imaging performance over the full operating temperature range. We use advanced materials that enable unique athermalization properties and optomechanical designs that effectively compensate for optical variations over a wide temperature range.
IR Optics Production Site Virtual Tour
Ophir LightIR 20-275mm f/5.5 MWIR lens, integrated with Markos 640 by i3 Systems
Applications
Commercial
Defense
资源
Application Notes
航空 UAV Infrared Imaging Hand Held Thermal Imagers and Weapon Sights 海军 海上 用于无人驾驶飞行器和无人机的先进红外光学组件(502.2 kB, PDF) Advanced IR Optical Assemblies for UAVs and Drones Meeting SWaP constraints
Data Sheets
LightIR 20-275 mm f/5.5 Data Sheet(290.6 kB, PDF)
Drawings & CAD
680314 Interface Control Document(279.4 kB, PDF)
Literature
High Performance Optics for UAV Payloads and Drones(1.1 MB, PDF) IR Long Range Zoom Lenses Brochure(9.5 MB, PDF) 轻量化&紧凑型红外连续变焦镜头(1.4 MB, PDF)
Technical Articles
Webinars
Videos
LightIR Lightweight Zoom Lenses for MWIR and LWIR Cameras(0:52) Ophir LightIR 20-275mm f/5.5 MWIR lens, integrated with Markos 640 by i3 Systems(0:52) AquaShieldIR™ Hydrophobic Coating for Maritime and Naval Security & Surveillance IR Systems(1:09) Low-SWaP, Compact Zoom Lenses for MWIR VGA 10µm Detectors(1:05)
