If your projector has a zoom lens the lens can be adjusted to change the size of the screen image without changing the distance of the projector.
Projector screen gain calculator.
1 choose the projector type mfr brand and model.
The screen achieves this by focusing the light into a more narrow reflective angle instead of uniformly reflecting the light in all directions.
You will not find a better projector screen store to buy projector screens projectors and more.
Since each projector lens is different an online projection calculator tool will help you calculate the size of an image on a screen relative to how far the projector is placed from screen.
2 set the gain that your desired screen will have.
The screen automatically resizes dimensionally to ceiling height.
For any given projector the width of the image w relative to the throw distance d is know as the throw ratio d w.
Professor ht talks about how projector screen gain is a key decisi.
Projector screens come in a wide variety of different formats and styles to suit many different purposes.
Explore the possibilities today.
Take your viewing experience to the next level with these screens.
What is a throw ratio for a projector.
A projector screen with a gain measurement of 8 will reflect back at 80 of the original brightness.
Use our projector calculator to determine throw distance and optimal screen sized based on your projector.
Use our viewing distance calculator to figure out the optimal seating distance for your audience based on the projector screen size you are considering.
That same 1 000 lumen projector will be viewed by the audience at only 800 lumens.
A 1 000 lumen projector aimed at a screen with 1 5 gain will be perceived at 1 500 lumens.
This is why higher gain screens have a smaller viewing angle.
That is because the low gain screen diffuses light more evenly over a wider angle of view.
Virtually any size up to the maximum shown for a given model is available.
A high gain screen is constructed to reflect more of the projector s light energy back toward the centerline of the projection path and less light energy to the oblique.
Home projection screens screen tools screen size calculator custom screen size calculator draper also manufactures custom size screens to meet your specification.
Offering the best priced selection of projector screens for everything from home theaters to professional audio video productions.
Low gain screens have wider half gain viewing angles than do high gain screens.