Projeo Motion ALR LT 100
Overview
Projecting an image more than two meters wide in a bright living room, without drawing the curtains or repainting the walls: this is the use case addressed by ambient light rejecting screens. The Motion ALR LT 100 applies this technology to a motorized 100-inch screen, calibrated for long-throw projectors. A solution for living rooms used as occasional home theaters, without dedicated installation.
How the screen handles ambient light
A conventional projection screen reflects all the light it receives indiscriminately, both from the projector and from windows and ceiling lights. The result in a bright room: blacks that turn gray and contrast that collapses. The Motion ALR LT 100’s ALR screen works differently. Its surface, a treated PET film, is structured to reflect the projector beam toward viewers while absorbing light that arrives from other angles.
The gain of 1.8 indicates the amount of light the screen returns compared with a reference white surface. At this value, the screen reflects significantly more light on-axis, which maintains a bright image even when the room is not plunged into darkness. This choice has a trade-off. High-gain screens tend to concentrate light in the center, with an area slightly brighter than the edges, and brightness falls off more quickly as soon as you move away from the axis. The stated 120° viewing angle corresponds to the cone within which the image retains its qualities. At the center of this cone, facing the screen, rendering is at its best.
Lacquered housing and screen kept flat
The housing measures 238 cm long with a section of about 8 cm on each side, in white lacquered metal. It houses a tubular motor, the type of motorization built into the winding axis, chosen for its quiet operation and smooth deployment.
The screen lowers with a lateral tensioning system. Small tabs connected by cords run along both edges and pull the surface outward during descent. This tensioning eliminates the waves and rippling that often appear on roll-up screens. For an ALR screen, flatness is not a finishing detail: the optical structure of the surface only reflects light correctly if it remains perfectly flat. A 232 cm weighted bar at the bottom of the screen completes the support.
A wide 300 mm black border occupies the top of the image, compared with 20 mm on the sides. This upper black band is not wasted space: it serves as a drop and allows the housing to be mounted higher, near the ceiling, while keeping the image at eye level.
Wall, ceiling, or suspended installation
Three installation configurations are provided: wall mounting, ceiling mounting, or suspended installation. The choice depends on the room layout and the space available above the image area.
On the control side, the screen combines three control methods. An infrared remote control system is integrated into the housing. A remote infrared sensor is provided: connected to the screen, it is placed where the remote can reach it, useful when the housing is recessed or concealed. A manual wall switch completes the set, with three positions for up, stop, and down. Power is supplied via a European-type 220 V cord, 5.1 m long, which leaves enough slack to reach an outlet without an extension cord. The warranty is two years.
The dimensions of the 100-inch model
The 100-inch diagonal corresponds to a usable image area 221.4 cm wide by 124.5 cm high, in 16:9 format. It is the size that covers a section of a living room wall without overwhelming it, and remains comfortable from a sofa placed three or four meters away.
The housing and weighted bar extend slightly beyond the image surface, around 238 and 232 cm respectively, dimensions to take into account for side clearance. The packaging measures 257.5 cm long. Before installation, the package must be stored horizontally, as indicated by the marking on the box: upright storage risks marking the rolled screen. The Motion ALR LT range is also available in a larger format for rooms that can accommodate it.
Which projectors to pair with the screen
The LT in the name stands for “long throw”. The screen is calibrated for projectors installed at a distance from the screen, at the back of the room or on the ceiling. It is not suitable for ultra-short-throw projectors, placed just below the image: these require a different type of ALR screen, whose microstructure is oriented for a beam arriving from below.
One restriction deserves attention. ALR LT screens are not compatible with triple RGB laser projectors. Pairing this type of source with the screen can cause color casts and distort color rendering. For a triple RGB laser projector, a conventional UHD 4K screen remains the recommended choice. With a long-throw projector using common technology, the Motion ALR LT 100 reproduces UHD 4K content without difficulty, including in a lit room.
Documentation
Technical Specifications
Screen
- Projection surface: ALR (Ambient Light Rejection) for Long Throw projector
- Gain: 1.8
- Viewing angle: 120°
- Projector type: long throw
Structure
- Housing: white lacquered metal
- Motor: tubular motor
Control system
- Integrated IR remote control system
- External IR sensor included
- Manual switch: Up, Stop, Down
- Power cord
- European type
- Voltage: 220 V
- Cable length: 5.1 m
Available dimensions and formats
- Ratio: 16 / 9
- Screen type: ALR Long Throw
- Borders: B1 300 mm, B2 20 mm
Motion ALR LT 100
- Usable image size: 221.4 × 124.5 cm
- Diagonal: 100” (254 cm)
- Housing size (L1): 238.1 × 8.2 × 8.2 cm
- Weight bar size (L2): 232.4 × 3.09 × 2.39 cm
- Packaging dimensions: 257.5 × 16 × 15 cm
Frequently Asked Questions
Is the Motion ALR LT 100 suitable for an ultra-short-throw projector?
No. The screen is designed for long-throw projectors, placed at a distance from the screen. An ALR screen for ultra-short throw has a different surface microstructure, optimized for a beam arriving from below, just a few centimeters from the wall. Using an ultra-short-throw projector on this screen would severely degrade the image. For this type of source, a specifically UST-type ALR screen is required.
Can the screen be controlled from a home automation system?
The specifications describe three controls: the integrated infrared remote control, the supplied remote infrared sensor, and the manual wall switch. No automatic trigger interface such as a 12 V input or serial connection is documented. Home automation control remains possible through an infrared emitter controlled by the home automation hub, which reproduces the remote control commands. This is integration by learning infrared codes, rather than a dedicated connection.
What projection distance should be planned for?
It depends on the projector’s throw ratio, not the screen. A long-throw device must be set back to cover an image width of 221 cm: the exact distance is calculated from the throw ratio specified by the projector manufacturer. In practice, this type of model is placed at the back of the room or mounted on the ceiling, several meters from the screen.
Why is there such a wide black border at the top of the image?
The 300 mm upper border is a fixed black band located between the housing and the top of the image. It acts as a drop: by moving the image away from the housing, it allows the casing to be installed near the ceiling while placing the image at eye level from the sofa. The side borders, meanwhile, are limited to 20 mm and simply frame the usable surface.
Is the screen compatible with 4K content?
Yes. The ALR LT surface reproduces UHD 4K content. The resolution actually displayed depends on the projector: the screen does not limit image sharpness. Its optical structure is mainly intended for ambient light management and contrast retention, two points that remain valid whatever the source definition.
How much brightness does the projector need?
The gain of 1.8 works in favor of projectors that are not the brightest: the screen efficiently returns the received light, which compensates for part of a brightness shortfall. In a very bright room or facing large bay windows, a more powerful projector still has the advantage in perceived contrast. There is no single lumen threshold; the result depends on the actual level of ambient light in the room.
- Eco-contribution included in the sale price.
- Manufacturer reference: PROMOT100LT
- GTIN / EAN: 3700795165058
