| I checked all around, studied up on the differences in fresnel lenses and finally decided on the F550 lens from 3Dlens.com. |
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| The diameter of the hole is equal to the diameter of the largest complete circle on your fresnel lens. |
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| These were made for use in rear screen projection TV sets in conjunction with our fresnel lenses. |
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| Wiko replacement fresnel lenses have long been known for their superior quality. |
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| Also, bear in mind that the fresnel lens both flips the image upside down and has a mirror effect on the text. |
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| Keep in mind that your fresnel is going to be held by some kind of frame. |
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| The old fresnel lens has been in use since 2001 in Dungeness Lighthouse. |
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| Other alternatives include total-external-reflection-based components such as polycapillary optics or diffraction-based Fresnel zone plates. |
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| Figure 4 shows the first Fresnel zone is an ellipsoid surrounding the straight line between the two antennas. |
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| From either side, the viewer looks through Fresnel lenses that magnify the insects. |
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| Like Solar Dawn, Kogan Creek Solar Boost will also use AREVA Solar's Compact Linear Fresnel Reflector solar thermal technology. |
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| Dr Yabe's trick is to use relatively small Fresnel lenses transparent and relatively thin planar lenses made up of concentric rings of prisms. |
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| Charlotte's Fresnel lens was moved to another lighthouse and then disappeared. |
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| I looked on as my freshman hallway considered whether to spend our entire entertainment budget on a single Fresnel lens. |
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| A 178-step climb is rewarded with a breathtaking view and a 19th-century Fresnel lens beacon. |
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| The lighthouse itself was decommissioned 101 years ago, and its powerful Fresnel lens has long since been removed. |
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| The present lighthouse was constructed on pilings out on the river and equipped with a kerosene-powered Fresnel lens. |
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| Tilting, turning Fresnel lens for exact adjustment of the detection zone to protection requirements at the site of installation. |
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| It continues to be in top-notch condition, and is the only imperial tower to have its original Fresnel lens. |
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| The Eyebooster module is composed of a pyroelectric sensor detecting the convergent infra-red rays through a Fresnel lens. |
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| Only use neutral soap and water to clean the Fresnel lens, then dry it carefully with a soft, non-abrasive cloth. |
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| Numerous accessories such as coloured dichroic filters, Fresnel lens, barn doors and anti-glare louvre highlight the versatility of United. |
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| Whilst using the fixture with an Open Face or a PAR reflector with a mounted Fresnel lens, the complete focus range can be used. |
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| Thus emerged the full Fresnel catadioptric system, the basis of all lighthouse lens systems today. |
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| The Coast Guard's push to rid itself of the buildings or replace Fresnel lenses is worrisome to lighthouse enthusiasts. |
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| The FLATCON technology uses Fresnel lenses to focus sunlight onto small highly-efficient solar cells. |
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| In fact Fresnel had already published his theory that light was a transverse wave but, although Doppler had read Fresnel's work, he did not accept it. |
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| Thus emerged the full Fresnel catadioptric system. |
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| Using a 180 watt lamp and pulling just 275 total system watts, a Hive Hornet180 Fresnel puts out more light than 400-watt HMIs and 1,000-watt Tungsten Fresnels. |
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| Soon, preservationists in Lorain began searching for a Fresnel lens. |
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| The lens on the HBA 5 s alignment head is an impact resistant Fresnel lens designed specifically to converge the light emitted from the headlamp onto the internal screen. |
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| At the heart of the screen lies a half-circular Fresnel lens that reflects the light beam from the projector and sends it forwards at a right angle towards the viewers. |
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| Small in size but big on power, the LEDB-4 LED Beacon provides a full 360 degrees of visibility with 18 integrated LEDs and a specially designed Fresnel lens. |
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| The sunlight is concentrated with a Fresnel lens on top of the PV-Card. |
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| There is no need to use additional Fresnel lenses in individual cases. |
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| Other interesting artifacts that will be on exhibit include the fourth-order Fresnel lens from the Ship Island lighthouse. |
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| The detection zone can be adjusted exactly to protection requirements at the site of installation by means of the tilting, turning Fresnel lens and can also limited using the shrouds provided. |
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| Ranging from the low-price Fresnel lens light HS 5140 to the microprocessor controlled hi-tech floodlight HS 500, the STEINEL line-up offers just the right model for any application. |
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| These PIR detectors differ mainly in the design of the Fresnel lense installed, their adjustment with regard to ambient conditions, the type of fitting and the properties of the movement or brightness signal. |
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| Coupling with a Fresnel lens for a very short focal length. |
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| The Highways Agency will nowhand out another 90,000 of the Fresnel lenses at major ports in England and France, including Liverpool, in a further bid to cut sideswiping. |
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| The concentrator is a Fresnel lens, a prism-like optics design that was originally developed to increase the intensity of beams emanating from lighthouses. |
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| Young and Fresnel combined Newton's particle theory with Huygens' wave theory to show that colour is the visible manifestation of light's wavelength. |
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