Yes. Many ALR projection materials use directional optical structures, so correct screen orientation is important for proper image performance.

For directional ALR materials, the screen must be installed according to the intended projector position. A screen configured for a floor-mounted UST projector may require a different material orientation from one configured for a ceiling-mounted projector.

For motorized, floor-rising, or other preassembled ALR screens, please confirm the projector installation position before ordering.

If you are unsure about the required orientation, provide your projector model and installation position so SCREENPRO® can confirm the appropriate configuration.

Lenticular and Fresnel are two different optical structures used in ALR projection screens.

Lenticular ALR materials use directional microstructures to manage projector light and ambient light. They are commonly used with UST projectors and can be produced in flexible screen formats such as fixed-frame, motorized, floor-rising, and in-ceiling screens.

Fresnel ALR screens use a different optical structure designed to direct projector light toward the viewing area while reducing unwanted light from other directions.

The better choice depends on projector type, screen size, viewing angle, installation method, and room environment.

Yes, but the ALR material must be designed for the projector's throw type.

UST ALR materials and long-throw ALR materials use different optical principles and should not be treated as interchangeable.

For standard or long-throw projectors, choose an ALR material specifically designed for the projector position, throw ratio, ambient light conditions, and required viewing angle.

[Explore Long-Throw ALR Screens →]

For a UST (ultra-short-throw) projector used in a room with ambient light, a properly matched UST ALR screen is generally recommended.

UST ALR materials are designed specifically for the steep projection angle of ultra-short-throw projectors. SCREENPRO® T-Prism material uses a directional lenticular structure designed for UST projection.

Projector position, throw ratio, screen size, and room lighting should all be considered when selecting the appropriate screen material.

[Explore UST ALR Screens →]

ALR screens use directional optical structures to manage how light is reflected toward the viewer.

The screen is designed to reflect light arriving from the intended projector direction toward the viewing area while reducing the influence of ambient light arriving from other directions.

Different ALR technologies are designed for different projector positions and throw ratios, so the screen material must be matched correctly with the projector and installation.

An ALR (Ambient Light Rejecting) projection screen is designed to reduce the effect of unwanted ambient light on the projected image.

Unlike standard projection surfaces that reflect light more broadly, ALR materials use specially designed optical structures to direct more projector light toward the viewing area while reducing light arriving from unwanted directions.

This can help maintain better perceived contrast, black levels, and image clarity in rooms where complete light control is not possible.

What is Ambient Light?

Broadly, ambient light is some atmospheric lighting that originates from an indirect source of luminance that can be inside, outside, naturally, or artificially occurring. Basically, it’s any light source other than your projector that threatens to wash out your image or otherwise impair its visual aesthetics. This includes but is not limited to, light coming through windows and skylights from outside, track lighting, in-wall/ceiling lights, lamps, candles, fireplaces, etc.

Why Do You Need One?

SCREENPRO T-Prism Click HERE projector screen materials are specially designed for the presence of overhead light sources commonly encountered in residential and commercial environments. This type is also specifically geared toward UST (ultra-short-throw) projectors.

In a Normal-throw projector version, fabric provides ambient light conditions for previously unprecedented contrast, black level, brightness, and vivid colors. Click HERE

ALR screens offer the opportunity for impactful images without a huge impact on projected image quality.

* (SUPPORT Ceiling Mounted UST projector under special request)

〉Short-Throw Projector ALR Screen Product Link HERE

〉Long-Throw Projector ALR Screen Product Link HERE

Verify the Screen Orientation: If buying a motorized drop-down version, confirm if it is built for floor-projection or ceiling-mounted inverted projection, as the micro-prisms are directionally locked. (Raw fabric or a fixed frame, it will be fine)