3/19/2023 0 Comments Ambient light rejecting screenThe 1.5 gain of the CineGrey 5D® reflects the image at 1.5 times the original brightness of magnesium carbonate which is the standard industry control for creating a 1.0 gain white projection screen. There is approximately 50% loss of brightness when 3D is activated and there is even more brightness (aka lumens) being lost when the tinted shutter glasses are worn. The CineGrey 5D® is a 1.5 gain screen material that improves the image quality when active 3D projectors are used. Although a white surface is recommended in completely controlled designs, the difference in grayscale between the CineGrey 5D® and CineWhite® surfaces are so slight that they may not be noticeable to most human eyes. The grey/silver properties of the CineGrey 5D® reduce the impact the reflective surfaces, such as light colored walls and ceiling, have on the screen image. In light controlled rooms, there are still certain reflective surfaces that may interact with the projected image such as the colors of the walls/ceiling. The ambient light reflecting properties allow the CineGrey 5D® to maintain the image quality even under conditions where there is a high amount of light. With most standard white materials, the image will become washed out when ambient light is present. These both work to enhance the contrast ratio and color reproduction in either a well lit or a dark room. The CineGrey 5D® contains elements of a silver screen despite its dark appearance.This causes direct light from the projector to reflect squarely into the viewer’s field of vision while the outer contrast layer enhances image quality while absorbing indirect ambient light. The material has an angular reflective material that incorporates a diffusion layer over a highly reflective surface. The CineGrey 5D® material has an ambient light rejecting surface.However, under conditions when a lower output projector, uncontrolled ambient light, or light colored walls and/or ceiling, the CineGrey 5D® has four key features that result in a better overall viewing experience. Also, the Cinegrey series of ALR and ceiling light rejecting (CLR) screen materials give reference grade quality that is world class certified by the Imaging Science Foundation (ISF) for its professional grade abilities to provide accurate color rendition, contrast, and black/white dynamic range. The CineGrey 3D® has a wider diffusion range while the CineGrey 5D® is brighter. Comparing either CineGrey 3D/5D materials to the old matte grey is like comparing a couple of souped-up Ford Mustangs to a Model T.Ī: Our CineWhite® material is an excellent screen material that is highly recommended when you have either a really high output (+3000 lumens projector) and/or are able to control the light in your media room (i.e. The down side is that a projector with a high lumens output and interior light control was required. The next generation materials we offer now are CineGrey 3D / CineGrey 5D. The CineGray materials are ambient light rejecting. This means that the new materials will give you flat panel display brightness even with high levels of interior lighting. The old matte grey materials are washed out by interior lighting. Matte grey materials added a darker shade to projected images that would enhance black levels to a degree. At the same time, the “CLR®” rejects other forms of off-axis light such as regular room lighting, window light, ceiling light or even the direct signal from a standard throw projector.Ī: Matte grey was an earlier effort by projection screen manufacturers to enhance projector performance when projectors had limited performance ranges in need of a little help. Their reflective microstructures are aligned to reflect the upward spread light signal from UST projectors into a viewer’s field of vision. Materials like our Starbright CLR® are specifically designed for UST projectors. Because Short-throw and UST projectors spread out their light signal over a comparatively short distance, much of the light is off-axis and will therefore be rejected by the material. We have created videos and articles on proper video and seating alignment to achieve the proverbial “sweet spot” for picture performance. As long as the projector and material are aligned in accordance with SMPTE standards, you will get optimal picture brightness, color-contrast, and black level dynamic range while off-axis light is essentially rejected. Each of these materials incorporate some sort of reflective microstructures that allows for projected light to create a superb image while off-axis light is either absorbed or reflected away from the viewers field of vision.ĪLR screen materials are typically made for standard “long-throw” projectors. A: Ambient light rejecting is a generic term for a variety of materials that prevents projected content from being washed out by incident room lighting from either natural or manmade sources.
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