Ambient Light Rejection (ALR) projector screens are the perfect answer for classrooms, training sessions, and meeting rooms. These screens have the ability to be used in a room with multiple lighting sources and still be able to project a clear image. These ALR screens are gaining popularity among people who possess projectors and want to experience a theatre environment right inside their homes.
When using a WEMAX ALPD technology projector in a room that is not adequately darkened, ambient light from white walls and other surfaces reduces the quality of images projected from a projector. Even when projectors are used in rooms that are well-curtained, the problem of image quality may still persist because the room may still not be well-suited for projectors.
So, what is the importance of Ambient Light Rejection screens?
Ambient light Rejection screens solve the problem of blurred images projected in a room that is not well darkened to enable the use of a projector. It also makes it possible to use the projector even during the day.
How does this 120 ALR screen work?
While regular screens reflect light in all possible directions, a 120-inch ALR screen reflects light in only one direction. This selective reflection of light in the audience’s direction is why these screens produce high-quality images that are clearer and brighter even during the day as opposed to regular screens.
These screens are made up of numerous microstructures and optical fibers laid in layers. These layers enable the screen to focus its reflected light in a particular direction. While most of the light reflected by the ALR screen is reflected toward the viewers, in some cases, light may hit the ALR screen at an odd angle creating Ambient light. This screen, however, directs such light from the viewers canceling any ambient light on the ALR screen.
What are the different types of ALR screens?
Several types of ALR screens exist in the market today. Discussing them will enable you to make an informed decision before buying a particular type for your home, conference hall or even the church where you attend worship service.
Retro-Reflective ALR Screen.
While these screens provide the user with high-quality images, they require an expert to mount them in order to get optimum results. They operate by reflecting the projected light to the projector.
Angular-Reflective ALR screens.
These screens reflect the image from the projector at an angle opposite to that at which it was incident. For instance, if a projector mounted at the ceiling is at a five-degree angle, the image will reflect back toward viewers off of the screen at the exact angle.
Ceiling Light Rejection Screens.
While this type of screen also rejects Ambient Light, it is best suited for rejecting light from ceiling structures.
ALR screens for ultra-short-throw projectors.
Ultra-short-throw projectors are not compatible with all types of ALR screens. These projectors reflect light at extreme angles. Those who own these types of projectors must be extremely careful to ensure they purchase only those screens that are compatible with this type of projectors.
What must you consider before purchasing an ALR screen?
The reason why consumers buy 120 ALR screens is their increased precision. However, these good qualities come with a cost. While these screens improve the quality of images viewed, their viewing angles may be reduced. Some of these screens have a viewing angle of about 160 degrees, while some have a reduced viewing angle of 90 degrees. Consumers must ensure they have acquired the screen with a viewing angle of their choice.
Pros of using ALR screens.
Specular reflection, which characterizes traditional projection screens, has issues with glare and the “spotlight effect.” Light-rejecting screens have improved anti-glare (AG) qualities that reduce reflection and stop spotlighting to address these problems. The image quality degrades when a screen absorbs more light. ALR screens reflect more light back to users, producing brighter and bolder images while more successfully rerouting ambient lighting to minimize its interference withimage quality.
Residential and business settings alike can benefit from the use of ALR screens. They can even be used for video games and other projects that involve video projection.
Cons of using ALR screen.
Because of the inherent color of the screen, certain bright colors have a tendency to lose detail when utilizing ALR screens. On a screen, some hues, like red or purple, could appear more faded.
ALR screens are expensive. While this new technology produces high-quality images, the price of an ALR screen is discouraging. The cost of these screens is far much higher than the price of traditional white screens.
In conclusion, ARL projector screens can project high-quality images during the day or in rooms that are not well-darkened. They achieve this by redirecting ambient light from other reflecting surfaces. This ability, however, is what the traditional white projector screens lack. There are various types of ALR screens ranging from Angular-Reflective ALR screens to Retro-Reflective ALR screens, just to mention a few. Before settling on the type of ALR projector to buy, a consumer has to consider a number of factors, including their compatibility with the projector type, the price, and the viewing angle