celexon Folding Frame Screen Mobil Expert 366 x 229 cm Professional Screen, Rear Projection

celexon Folding Frame Mobil Expert: the rear projection screen for a hidden projector set-up

The celexon Mobil Expert folding frame screen measuring 366 x 229 cm (170 inches, 16:10) in the rear projection version is the portable professional screen for shop windows, exhibition stands and stages: wherever the projector should stand invisibly behind the screen so that only the image is visible. The projector casts the image from behind onto the special rear projection fabric, which distributes the projected light evenly to the front and remains clearly visible even in moderate ambient light.

The one-piece aluminium folding frame is opened out without tools and stands freely on two feet; the fabric is attached to the frame all round with press studs and is therefore evenly tensioned. Frame, connectors and case are designed for frequent transport cycles and built for regular professional set-up and dismantling – which is exactly what makes it the „Expert".

Key benefits at a glance

• Clean presentation without visible technology: The projector is hidden behind the screen – projector and cables stay out of sight from the audience, and nobody accidentally walks through the beam.
• Clearly visible even in ambient light: The rear projection fabric distributes the light projected from behind evenly towards the front and remains easy to read even in moderate ambient light.
• Permanently flat projection surface: The fabric is stretched into the aluminium folding frame all round with press studs, so it lies perfectly flat.
• Extremely sturdy and mobile: one-piece aluminium folding frame with two feet, quick to set up and take down, designed for frequently changing locations.
• Sturdy transport case included: metal fittings all round and castors protect the frame and fabric in transit; a storage bag for the fabric is included.

Is the Mobil Expert folding frame (rear projection) the right choice?

• Yes, if the projector should stay out of sight (shop window, exhibition stand, stage, reception) and you have room behind the screen to set it up.
• Rear projection: If the projector stands in front of the screen (standard for presentations and training), choose the front projection version in the same size.
• Not ideal if the screen is to hang permanently on a wall: in that case a fixed-frame screen or a motorised screen is a better fit. For laser TV projectors, a CLR screen is the right choice, and for bright rooms with front projection an ALR contrast screen.

We will be happy to tell you which size and setup suit your room. Get in touch →

Planning rear projection properly

These points are crucial for rear projection:

• Space behind the screen: The projector stands behind the fabric and needs throw distance there. Plan for sufficient depth; exactly how much depends on the projector.
• Projector with rear projection mode: The projector must be able to mirror the image (menu item “Rear projection”), otherwise everything appears reversed.
• Minimum distance approx. 1.5× image width: Keep a distance of at least 1.5 times the image width between projector and screen. This keeps the image evenly bright and avoids a brighter spot in the centre of the image (hot spot).
• No ultra short throw projector: Standard and short-throw projectors are suitable for rear projection; a UST projector would sit too close and intensify the hot spot.

If space behind the screen is tight, a short-throw projector can reduce the depth required. However, rear projection cannot do without any distance at all: the minimum distance stated above should be maintained so that the image stays evenly bright.

Fabric and image of the Mobil Expert folding frame (rear projection)

The special rear projection fabric is designed to radiate the image projected from behind evenly and strongly towards the front, even in rooms with some ambient light such as shop windows or exhibition stands. Because the fabric is attached all round in the frame with press studs, the entire image area lies flat – the prerequisite for an image that is evenly sharp across the full width.

Which size is right? Format and viewing distance

The Folding Frame Mobile Expert is available in 16:9, 16:10 and 4:3 formats and in image widths of over 4 metres. The key planning dimensions for this size:

Rule of thumb for viewing distance: the front rows should ideally be at least about 1.5 times the image width away (here approx. 5.5 to 7.3 m), and for easily readable presentations the back row should be no further than around 6 times the image height (here approx. 13.7 m). In deep rooms such as an assembly hall or gym, this means choosing one size larger so that the back rows can see everything too, and using the height-adjustable feet to raise the lower edge of the image so that the back rows have a clear view over the front ones. And the larger the image, the more light output your projector needs so that the picture stays bright and brilliant. We will be happy to work out which size suits your room and which projector offers enough light output for it. Get expert advice →

Set-up and transport of the Folding Frame Mobile Expert

Set-up is tool-free and takes just a few minutes:

1. Take the aluminium folding frame out of the transport case and unfold it
2. Attach the fabric to the frame all the way round with the press studs
3. Fit the two aluminium feet and set up the screen
4. Align the projector behind the screen and set it to rear projection

To dismantle, detach the fabric, fold up the frame and pack everything back into the transport case. The case is generously sized so the folding frame and fabric fit easily; thanks to the wheels and all-round metal fittings, you can take the screen to the next venue conveniently and safely. The fabric is additionally protected in the supplied storage bag.

Front projection or rear projection – which version suits you?

In short: choose rear projection if you want the projector to disappear invisibly behind the screen (shop window, stage, exhibition stand) and you have space there. If the projector stands in front of the screen, the front projection version in the same size is the right choice.

In the box

• celexon Folding Frame Mobil Expert 366 x 229 cm Rear Projection (Rear Projection Fabric + One-Piece Aluminium Folding Frame)
• 2 aluminium feet
• sturdy transport case with all-round metal fittings and castors (W×H×D 115.5 × 31.0 × 55.0 cm)
• Storage bag for the fabric

Shipping note: large formats are delivered by freight forwarder.

Have you thought of everything?

• Matching projector & cable: For rear projection, you need a projector that can mirror the image. If space behind the screen is limited, a short-throw projector helps you manage with less installation depth; the matching HDMI cable connects the projector and source device.
• Transporting your projector: On the go, the celexon projector bag Economy Large protects your projector; for a fixed mobile location, there is the celexon projector trolley (projection table) on castors.
• Can also be used for front projection: With the same frame, you can also project from the front – the matching front projection fabric in 366 x 229 cm is available as a retrofit.
• Stability for stage & events: The celexon ground anchor set provides additional protection against wind when the screen is used outdoors.
• Different size or version? You will find all sizes and other designs under portable screens and in the celexon overview.

Frequently asked questions about the celexon Mobil Expert folding frame (rear projection)

What do I need for rear projection?
Two things: space behind the screen for the projector's throw distance, and a projector that can mirror the image (menu item "rear projection") so that it appears the right way round. If space is limited there, a short-throw projector can save installation depth; however, a certain minimum distance from the screen is still required.

What's the difference between front and rear projection?
With rear projection (this version), the projector is hidden behind the screen. You'll find the front projection version (projector in front of the screen) linked directly in the comparison table above.

Can I use the Faltrahmen Mobil Expert outdoors?
Yes. You can set it up outdoors without any problem for gardens, courtyards or open-air events. It just shouldn't stay outside permanently, as rain and moisture take their toll on the fabric and frame: bring it back in after use and store the fabric dry. Set it up in a sheltered spot. From wind force 3 Bft, i.e. around 12 to 19 km/h (wind clearly felt on the face, leaves rustle, pennants are extended), we advise against using it outdoors.

Planning a projector, screen and accessories as a complete package? We will put together the right setup for you – get expert advice now →