FREQUENTLY ASKED QUESTIONS
How do I contact EventProjectionScreens.com?
EventProjectionScreens.com is operated as an online shop, if you need to contact us please do so on: firstname.lastname@example.org
Can I return the screen?
All screens are manufactured using premium PVC, however should there be a quality or technical issue we will arrange a replacement where appropriate. Due to orders being manufactured to size, screens cannot be returned for any other reason. Please contact us with any issues at email@example.com
What is the short throw projection?
When the projector is close to the screen this is known as short throw projection. Certain rear projection screens are more suitable than others for this application. Please see the descriptions for suitability.
What is multiple projection?
In some circumstances more than one projector are used, for example to project over a large area. Certain rear projection screens are more suitable than others for this application. Please see the descriptions for suitability.
What is the difference between front, rear or dual projection?
The location of the projector in relation to the screen will determine projection type. Front projection screens are used when the audience is viewing from the same side as the projector. In rear projection, the projector is placed behind the screen and the audience is looking towards the projector with the screen functioning as a diffuser. A dual projection screen can be used in either function.
What is screen gain and transmittance?
Gain is related to the reflectivity of the screen and affects the brightness of the image seen by the audience. The gain measurement is a ratio of the amount of light reflected back from the screen compared to the amount of light reflected back from a reflectance standard, normally a uniform matt white material. A matt white screen typically has a gain close to 1.
The transmittance value is the ratio of the amount of light passed through a screen compared to the amount of light reflected from a reference matt white material.
What do I do if I require a finish not available on EventProjectionScreens.com?
Please contact Harkness Screens directly
What do I do if my screen has crease marks?
The PVC may have creases until the screen is installed under even tension for a period of time. Where possible the screen should be installed in a warm environment to aid increased tension. Re-tensioning may be necessary to pull out persistent creases. Carefully apply heat locally on the crease if necessary.
How long does the screen last?
With careful handling and use the projection screen will last many years.
Can the screen be used outdoors?
All the projection screens will work well outdoors. The PVC does not have UV light inhibitors so will deteriorate quicker over time in direct sunlight.
What are the eyelet spacings?
The eyelets are spaced at 150mm
Are the screens fire tested?
All the products have been fire tested to most of the main European standards. Individual fire certificates are available on request.
How do I clean the screen?
The PVC is washable using warm water and a mild detergent applied gently using a microfibre cloth.