DRH... PROJECTION SCREENS |
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SCREEN FABRIC for Projection Screens
The latest projection screen materials can make a significant difference to any film or presentation. In the case of High Power projection fabrics (see below) the emitted image is exceptional. When choosing fabric consideration has to be given to viewing angles and potential usage (i.e. audience type). Below we have endeavoured to give indications as to suitability of the projection screen to the environment. All DRH fabrics are strengthened and there are no unsupported PVC products. Unsupported PVC is inexpensive but will tend to deform and is far less resilient over time. Matt White - projection screen fabricStandard material suited to multipurpose applications where the emphasis is on functionality. The reflective ratio is 1 (what your projector emits, you get back in the reflective image) and the field of view is excellent through 90 degrees either side of screen centre (See graph). Matt white fabric is hard wearing, resilient to everyday knocks and contains preservatives to resist against more extreme environments such as high humidity. A suitable reception surface for both LCD and DLP projectors. Technical specifications:
Matt White Rear (and front) projection materialThis product was originally intended solely for rear projection. Its prime purpose was in larger presentation environments, as opposed to home cinema where space is often at a premium. The obvious advantage is that the projection beam cannot be interrupted. However, some of the more recent projectors are capable of placing within close ranges of the surface and we have found this fabric is also good for front projected images. Our non-scientific tests, it has to be said, threw up a good image and the grey of the material resulted in darker colours demonstrating more contrast. Similarly, the lighter images were slightly darker although this depends upon the external light conditions and power of the projector. There are no borders available on this fabric although the grey acts as a natural border. Viewing angles are 180 degrees as with the Matt White (see above). The
fabric has been sold to the trade for a good many years now, and it durable
credentials are proven. High PowerReflective image is enhanced 3.2 times (gain ratio 1:3.2) with a 35 degree field of view either side of screen centre and never falling below 1 wherever viewed. The gain ratio of 1 applies from 35 degrees right round to the maxim of 90 degrees each side of the screen centre (see graph). A propriety micro- beading process means the resultant reflected image is significantly brighter whilst simultaneously producing brilliant contrast so colours are more vibrant and lifelike. High power fabric is particularly dramatic if used in conjunction with a projector at 1200 lumens or below. High power projection screen fabric comes into its own in specialised environments such as home cinema or bespoke professional applications. Viewers never cease to be surprised by the vibrancy especially where they have previously utilised standard fabrics. The material is of three-ply construction comprising a glass beaded face sheet, glass fibre central layer and stable vinyl backing layer. Technical specifications:
High Power |