This straight-arm Secondary LED Exhibit Light it is often referred to as a "display light" in the trade show industry and is ideally suited for illuminating common display structures, such as wall panels, pop-up displays, grid walls and pipe & drape setups. This powerful LED arm light is also great for art fair / craft festival booth and tent lighting. Our proprietary "narrow flood" bulb design compares very favorably to a 200W halogen light and provides excellent coverage for surfaces up to 4 feet wide. Incredibly, this light runs approximately 16 hours with our lithium-ion Mobile Power Center battery (sold separately), eliminating the need to purchase electricity at your next event!

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Field of view depends on the application. If we decrease the focal length, we will increase the overall field of view, but we will also increase that number I talked about earlier, the instantaneous field of view, the IFOV. That has the effect of lowering the spatial resolution down at the level of the individual pixel. That may be okay for some applications, situational awareness applications that just rely mostly on a big picture view of a scene, for example. On the other hand, there can be applications where you want a large field of view, but you also want to maintain spatial resolution. In that case, the way you would increase field of view would be to increase the detector array size. That would provide a larger field of view while maintaining the same spatial resolution as before. These are the kinds of considerations that we can help you work out in deciding how to use an infrared imaging system in which system to choose.

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Field of view describes the entire extent of the whole image that is being detected by an infrared thermal imaging system. It can be stated in terms of the angle, the extent of the angle, starting from your imager out into the scene. Or it can be described as the linear extent of the scene at some distance from the imager. Instantaneous field of view, or IFOV, as we call it, is the angle subtended by just a single pixel in your detector array out into the scene. This can be calculated as the pixel size divided by the focal length.

Welcome back to Ask an Expert. I’m Stan Voynick, Chief Technology Officer at Sierra-Olympia Technologies. Today, we’ll be discussing field of view and instantaneous field of view, how they work together to form the thermal images in airborne systems, security and surveillance, optical gas imaging, and other thermal imaging applications. Three of the most important factors we consider when we’re designing a thermal imaging system are field of view, aperture and spectral response. Today, I’ll be going over some questions about Field of View and closely related cousin instantaneous field of view.

Silicon Lightworks specializes in battery-operated LED lighting solutions for exhibitors at trade shows, art fairs, craft shows and other exihibition events. We provide show exhibitors best-in-class LED banner stand, display and exhibit lights that help reduce or eliminate excessive electric fees charged by venue operators. Learn More

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Creating a Chain of Lights: All of our arm lights are designed to easily connect together using a single power source (i.e. from a plug-in AC Adapter or battery). To create a chain of lights, you simply connect a Primary Light (sold separately) to its power source using its 10ft Power Cable. An additional Secondary Light may be connected to the Primary Light (or another Secondary) using its included Link Cable. You may power/link up to 5 lights at once (1 Primary + 4 Secondary) to our Standard AC Adapter or Mobile Power Center battery. You may power/link up to 10 lights at once (1 Primary + 9 Secondary) to our High-Power AC Adapter.

Please note: Secondary Lights are identical in construction and design to Primary Lights. The only difference being a Primary Light comes with an AC Adapter and 10ft Power Cable and always is positioned as the first light in the chain to provide power to all additional connected lights. By comparison, a Secondary Light comes with either a 5ft or 10ft Link Cable and no AC Adapter is included because it derives its power from the Primary Light.

There are two knobs that we have that we can turn to adjust this. One is the size of the detector array in the system, and the other is the focal length of the lens that we put on the system. Let’s talk about detector array size first. Let’s assume that we have the same focal length lens on this on these two cameras to take that out of consideration. This is the Viento-10, which has a 640 pixel array of ten micron pixels. This is the Viento 1280 (figure 1), which has the same ten micron pixels, but it has twice as many pixels in width, 1280 pixels in width. So its detector array is twice as large as the Viento-10 with a detector array twice as large as the Viento- 10 (figure 1). The Viento 1280 has roughly twice the field of view as the Viento-10 (figure 2). Notice so far I’m just talking in terms of the detector array with 640. In the case of the Viento-10, 1280 pixels in the case of the Viento 1280 detector arrays usually have a different height than they do width. That means they also have a vertical field of view that can be calculated. But for simplicity of this discussion, I’m just going to talk about the horizontal field of view.

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​​* This light does not come with an AC Adapter and therefore requires a Primary Light or Mobile Power Center battery for power.

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Now here I’ve got the Vayu HD with a 50 millimeters lens if I reach into my bag of tricks here and pull out a 25 millimeter lens. This lens has one half the focal length of this one, and therefore again, it will roughly double the field of view if I install this lens instead of the 50 millimeters lens.

This Secondary Light is designed to be connected to and powered by a Primary Light using the included 5ft or 10ft Link Cable, creating a chain of lights powered from a single power source. You can connect up to 5 lights at once (1 Primary + 4 Secondary) to our Standard AC Adapter or battery and up to 10 lights at once (1 Primary + 9 Secondary) to our High-Power AC Adapter. Please see "Product Details" below for additional important information.