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品牌名称：$brandModel.Title(进口品牌)型号：Frontal Optics for Ultimate Applications 原产地：中国大陆 发布时间：2023/4/6 14:20:34更新时间：2024/5/15 8:51:08
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详细内容
Frontal Optics for Ultimate Applications
资料下载：Download Frontal Optics for Ultimate Applications Datasheet (PDF, 285 KB)
IR optics is widely used when the tasks like the following are arisen:
- Early ａnd fast detection of the people, targets, forest fires, etc.;- Day ａnd night panoramic surveillance;
- Security perimeters control;
- Range ａnd visual tracking;
- Coastal ａnd border passive surveillance;
- Traffic monitoring;
- Detection of intrusion, fight against piracy, anti-smuggling, anti-collision ａnd many others.
The challengings of these applications dictate special requirements both to a substrate＇s material ａnd to a coating since just the frontal elements face the most severe service conditions.
Any optical assembling here must not only clearly “see” ａnd distinguish an target/object, but minimize the posibility of its own detection.
Below we emphasize the basic requirements to the materials ａnd coatings:
- for brightness ａnd image contrasts the internal light scattering in the IR materials has to be not more than few percents. For more details please look at the chapter “Germanium Windows ａnd Lenses for Thermography”. At the same time the maximal directional transmission for monocrystalline Ge should exceed 40% (when the integral one = 46%) ａnd for monocrystalline Si should exceed 48% (when the integral one = 54%);
- to the said above, to quarantee the high optical transmission the coatings should have minimal residual reflection (a few percents for a narrow wavelength range) over the working range including the cases when at the same time transmission within both atmospheric optical windows (3-5um ａnd 7-14um) is required;
- to quarantee high enough reliabilty, durability ａnd failure-free performance the coatings must meet the requirements of the optical-mechanical, adhesion, climatic ａnd others tests: Russian OSТ 3-1901-95, MIL-C-675C, MIL-STD-810.
Hereunder are some examples of the optical elements demonstrating the range of our products with brief information about application. Additional information is available in the chapter “Optics for Sensors ａnd Detectors”.
1) Si protection window for a night-sight operating at 3-5um range
Generally used as a front window transmitting over the working range to protect an optical assembling of IR night vision system. Detection range is 10km.
In combination with a window for a visible channel (for a daylight inspection - see below #2) such night-sights are placed at some military-oriented vehicles.
Specification:
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2) Radiation-resistant glass К108 window for a night-sight
Application - see above #1.
This window is placed near the above-mentioned Si window ａnd operates in the day-time. Combination of AR coating outside ａnd indium tin oxide (ITO) coating from inside allows to minimize residual reflection ａnd prevent ice accretion, snow ticking аnd to conduce of water/hoar/ice removal. As a result a window effectively works at three working wavelength ranges.
Specification:
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3) Ge meniscus lens of thermal vision system for target-seeking ａnd flight orientation
Application - on-board equipment.
Working wavelengths range - 3-5um.
Working angles range - 0-57 degrees.
Specification:
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4) Ge protection window for a night-sight operation at 8-12um range
Application - periscopic night-sight for the armoured vehicles.
Detection range (the target like a tank) is 3km.
Specification:
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5) Ge protection meniscus lens for infrared imaging camera operating at 7-14um
Application - passive surveillance system of long-distance targets as well as large area monitoring in real time regime. The feature of the system is automatic detection ａnd target＇s tracking.
Vehicle detection range is 7km.
Human detection range is 3km.
Specification:
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6) ZnSe protection meniscus lens for a land-based thermal vision system
Application - monitoring, seeking ａnd tracking of various flying objects.
Specification:
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7) Sapphire window for infrared imaging camera operating at 3-5um range
Application - the most demanding ａnd severe working conditions when an application dictates the exaggerated requirements to durability of the material, its chemical stability, non-toxicity ａnd so on.
We have been suppling similar windows for:
- the systems to measure temperature profile ａnd speeds of the liquid＇s flow;
- protection of the objectives during high pressure experiments as well as at dynamic impacts;
- observation of the processes into the wind-tunnels.
Specification:
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We are pleased to emphasize that the list of similar components is permanently replenished ａnd we are ready to consider your new RFQ＇s.
