The unique zooming and preset capabilities of NuOptic illuminators make them ideal for use with a pan/tilt/zoom camera. If the pan/tilt unit has adequate payload capacity, NuOptic illuminators can likely be added. Please see our “Integrated Solutions” section for examples. The “Overhead PTZ Mount” (VIS-1000-OM) was designed to mount any NuOptic illuminator to the underside of the payload plate of popular large pan/tilt units. If your pan/tilt unit has specialized mounting requirements please contact NuOptic support, we can likely offer a solution.
All NuOptic illuminators come with a standard bracket intended to be used for mounting to a vertical surface. This standard bracket allows a vertical angle adjustment range of 90 degrees down to 35 degrees up. For mounting to a horizontal surface (rooftop or parapet for example), NuOptic offers a horizontal surface mount (VIS-1000-HM) which has a vertical adjustment angle of 60 degrees down to 90 degrees up. If both horizontal and vertical adjustments are required, NuOptic offers the Premium Pan and Tilt Wall Mount (VIS-1000-PWM) which has a vertical adjustment range of 90 degrees down to 25 degrees up and a horizontal adjustment range of 90 degrees left to 90 degrees right. All three of these brackets are designed to mount directly to our pole (VIS-1000-PM) and corner (VIS-1000-CM) mounts. If your situation has specialized mounting requirements please contact NuOptic support, we can likely offer a solution.
In theory, the brightness controls (knobs and comm) can adjust in 1% increments from off to full rated power. However, the amount that produces a just-noticeable difference is likely greater than 1%, therefore, the number of unique brightness levels is theoretically near 100, but practically closer to 20 – 25.
Yes, there is some “dead band” interval in the control between fully off and light first coming on (from 0% to about 15%). This is unavoidable, however the remainder of the adjustment control is visually very uniform. We designed the control to increase evenly (or linearly) as viewed by a human or a camera with standard image processing applied.
Generally, we advise that the illuminators be mounted away from cameras such that the illuminator’s light does not shine into the camera’s lens. Additional spacing between the camera and the illuminator can be beneficial in areas with high insect populations. In cases where the camera and illuminator must be co-located (such as on pan tilt units), we try to position the illuminator forward far enough to keep the illuminator’s widest angle from hitting the front camera enclosure opening. Adding a “hood” or shield can help prevent light from hitting the camera’s lens if needed, but that is all it does – it will not make the light beam pattern any smaller.
The current family of VIS products do not support PoE, however NuOptic is in early stages of developing PoE powered products. VIS-1000 series illuminators do support input voltages that range from 24V to 36V DC as well as 24VAC ± 10%. Standard PoE can power devices up to 13W and PoE+ can support devices requiring up to 26W. Beyond 26W requires PoE++ which is still not standardized, as there are 3 competing standards vying for the position. We are closely monitoring this situation and will strive to utilize the most common and cost-effective standard among “the standards.”
All VIS illuminators support a large subset of the entire Pelco D-Protocol. The standard serial interface supports D-Protocol using either RS-232 or 2-wire half-duplexed RS-485 connections. The VIS True Hybrid models add an additional 4-wire full-duplexed RS-422 interface. The D-Protocol Standard Commands are supported, with Zoom commands controlling the illuminator’s field of illumination, the Iris commands controlling the illuminator’s brightness setting, and the Focus commands controlling the illuminator’s turn-on threshold setting. Additionally, many of the Extended Commands are supported, as well as a number of Pre-Defined Presets which enable VIS-specific control. Please refer to our D-Protocol Command Reference document available on our website.
Simply turn the THRESH knob fully clock-wise (CW) to disable the ambient light sensor and force the illuminator to always be enabled. Then adjust the BRIGHT knob to the desired brightness power level.
The VIS illuminator has 2 cord grips (a seal that tightens around a cable to provide a water-proof housing entry) on the back for connecting power and communication cables. In many applications, a communication cable may not be necessary, so one of these cord grips comes pre-installed with a water proof plug. These cord-grips are design to accept cables with an outer jacket diameter of 2.9mm to 6.4mm (about 1/8” to 1/4”). If the cable you would like to use is smaller than 2.9mm (but larger than 1.6mm), NuOptic will provide smaller cord grips free of charge upon request. The cable jacket must be smooth and round to make a reliable water proof seal. If used outdoors, the cable jacket material should be rated for outdoor use (contain UV stabilizers and be flexible over a wide temperature range). Cabling intended for indoor use can degrade quickly in an outdoor environment. The conductor gauge must be suitable for the illuminator model and for the length of the cable run. As a general rule when using the NuOptic 36 VDC power supplies, we recommend using 18 AWG or larger conductors for 40W models up to 90m in length or for 80W models up to 45m in length. Please refer to the NuOptic power supply datasheets for more information. For convenience, NuOptic supplies a variety of high quality outdoor cabling for power, long run power, communications, and even power plus communications in a single cable. Contact a NuOptic sales associate for more information.
The VIS illuminator has been tested to 60,000 lens movements with no measurable degradation in performance. This represents approximately 30 reposition commands every day for 5 years. VIS illuminators are not recommended for continuous touring applications with changing illumination angle.
All NuOptic illuminators use high reliability surface mount LEDs with FIT (Failures In Time) performance rates that far outperform nearly all other light source types. Additionally, NuOptic uses extended temperature range versions of critical electrical components for maximum reliability and all NuOptic illuminators have a full 5 year warranty. Even under maximum operating temperatures and operating hours per day, laboratory tests demonstrate that a very low percentage of the units we sell will have a LED failure over this warranty period. The exact life depends on multiple factors, the most critical of which is how well the product is designed to carry heat away from the LED. The basic principle is as follows: the cooler the LED is, the longer the LED’s life cycle and the brighter it is. Running the illuminator at lower brightness settings or in a pulsed mode will significantly lengthen the useful life.
All light sources experience a reduction in light output over time known as lumen depreciation. This depreciation begins right away and continues over the life of the light source. In general, high power surface mount LEDs degrade much more slowly than other common light sources such as incandescent, halogen, metal halide, or CFL bulbs. The human eye generally can’t detect a change in light output until there has been 30% depreciation, so this threshold is often used by light source manufacturers for determining the “useful life” of their products. With high power surface mount LEDs, it generally takes 50,000 hours or more for 50% of the population to lose 30% of the original brightness.
No, it doesn’t. If you do follow the polarity marks when using DC voltage, the unit is ever so slightly more efficient (maybe 1%), so if you can keep DC voltage polarity correct it is worth something, but if the lines get swapped there is no harm done.
This depends greatly on the specific situation. 940nm is considered “fully covert” as the illuminator’s output is nearly invisible to the human eye. 850nm is considered “semi-covert” and has an output that produces a soft red glow at the illuminator’s front cover. The light produced by our white light illuminators is fully visible and has a color temperature of 6500K (cool white). The benefit of using the 850 or 940nm wavelengths is that they do not produce “light pollution”, which is desirable in some circumstances and dictated by law in others. The benefit of white light is that well lit areas are a proven strong deterrent against crime. In order to use the 940nm or 850nm models, the security cameras being used must be “true day/night” cameras. These cameras are equipped with an IR cut filter that is mechanically removed in low light conditions. Cameras with a non-movable IR cut filter will block the light produced by the 940 and 850nm models. When choosing between a 940nm and 850nm wavelength, it is important to know that most cameras are less sensitive to the 940nm wavelength. This is why the illumination distance specifications are shorter for these models. For this reason, 940nm is typically used only when the illuminator must be “fully covert”.
All 40W NuOptic illuminators require 24V AC ± 10%, 1.3 A or 24V-36V DC, 1.7-1.2 A. All 80W NuOptic illuminators require 24V AC ± 10%, 2.5 A or 24V-36V DC, 3.3-2.3 A. For convenience, NuOptic offers 36 VDC power supplies ranging in size to power a single 40W illuminator up to our most powerful triple ganged 240W illuminator. Although we recommend using 36 VDC due to a slight improvement in efficiency and cable run lengths, any voltage within the range listed will reliably power a NuOptic illuminator. Be sure that the power supply you use is sized to provide the necessary current required by the specific illuminator model.
Remotely and/or manually. The angle can either be adjusted by turning a knob on the back of the housing or remotely with a serial command using the RS232/RS485/Pelco D interfaces.
All NuOptic illuminators have a continuously variable field of illumination angle with motorized control. The angle can either be adjusted by turning a knob on the back of the housing or remotely with a serial command. 850nm (semi-covert) and 940nm (fully covert) products have a range of 9 to 95 degrees and white light products have a range of 6 to 70 degrees.
Our IR illuminators use Osram Oslon Black Series LEDs for 850nm & 940nm. Our White illuminators use Osram Oslon SSL.
The housing of our illuminators is covered with a high durability epoxy-polyester heat cured powder coat. The front window of all our illuminator products is injection molded, high-impact polycarbonate. All our illuminators are IP66 rated, meaning they are dust tight and water protected for powerful jets. More more information on IP ratings: Click Here