Curved Projector Bar for attachment to ceiling. Ideal for the DIY enthusiast to add to your own curved screen. Made of high quality black anodized aluminum extrusion. Includes universal projector mounts.
- Projection Calculator Software For Curved Screenshot
- Curved Computer Screens
- Projection Calculator Software For Curved Screens Reviews
Image warping (geometric correction) is used to make an image look visually correct when it is projected onto a non-planar screen.
Image warping (geometric correction) is used to make an image look visually correct when it is projected onto a non-planar screen. This process is also referred to as distortion correction or geometric correction. The image is warped so when it is projected onto the screen it is visually correct.
- Projection Calculator Software For Curved Screens - fabfasr. The software is simply manipulated through interactive control points, aligning the projected display to the screen surface. Whilst designed for curved screen applications, also aids the projector.
- Also, blended projection has application on curved screens and dome theaters where the unique geometry of the screen makes standard projection difficult. One of the biggest drawbacks to blended projection is that the projectors have to remain perfectly aligned on the screen, otherwise the image drifts and causes ghosting and other undesirable.
Forms of image warping can be found in many projector models, with a function known as keystone correction being the most common. Keystone correction (trapezoidal in nature) is used when projectors have been mounted at an angle (generally pointing down from a ceiling to a screen), and the opposing angular correction needs to be applied in order for the image to be correct. Whilst most current projectors offer this feature, in many areas, advanced functions are required. For example, advanced off-axis correction and projection on curved and other unusual surfaces. For these applications, geometric correction tools such as ImmersaView Warp can be used.
Areas where geometric correction is required include:
- Advanced off-axis correction where projector placement is awkward and needs an advanced mapping over the keystone function in a projector
- Non-planar screens such a curved screens and hemispherical domes
- Projecting one image from one projector onto more than one surface
- Unusual projection applications onto custom designed screens
Figure 2: An example of a linear correction onto two planar walls.
Figure 3: An example of an advanced off-axis correction.
Figure 4: An example of spherical correction.
To describe the process of geometric correction in greater detail, we have taken the example of projecting onto a curved surface. For cylindrical and spherical screens, variations of barrel and pincushion correction functions are required to correct the image. The exact mapping will be dependent upon the optical characteristics of the projector, the screen’s size and shape as well as whether the imagery is front or rear projected.
Geometric correction can be performed with some special high-end projectors with advanced modules, but they are not common and tend to be expensive. There are also external electronic devices which can compensate for any geometric correction, but these also tend to be expensive.
Recently with advances in computer graphics cards, software solutions can now offer the ability to perform geometric correction. One such tool is ImmersaView Warp. This method provides a user with a number of control points which can be increased/decreased depending upon the complexity of the screen shape (see Figure 5). These control points can be manipulated by the user so an image is aligned correctly to a screen.
Figure 5: Control points for included for image warping.Typically, when a standard projector is used on a curved (cylindrical) screen, the image gets a characteristic “smile” shape (see Figure 6). To overcome this we need to use the control points along the top and bottom of the image to pull the image back down into shape. Because the pixels in the middle of the image will be bigger than the pixels at the edges, we compensate for this by dragging the control points near the center of the screen closer together. This tells the software system that these parts of the screen are further away and it automatically adjusts. ImmersaView Warp displays a checkerboard, which helps to create the right image warping pattern. When all the checks in the checkerboard look the same size, the distortion correction is correct.
Figure 6: Characteristic smile distortion when projecting onto a cylindrical screen.There are also other screen shapes that can be produced from complex curved and flat sections. One example of a linear based display is a wedge, composed from two flat screens. Here a single projector can be used with two advanced keystone correction patterns to project onto a single screen. Figure 7 shows an example of the pattern needed to rear project onto a convex wedge screen. To create these shapes the distortion systems need to be told that they are dealing with flat sections and rather than curved screens.
Figure 7: Projection map onto a two linear screens from one projector.Download Resource
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GSA Golf screen materials for your Studio Enclosure
GSA Golf screen materials
Home theater quality premium screen image impact screens
Golf Simulator Impact Projection Screens
Note: Current lead time for custom made screens is around 2 to 3 weeks
Note: when ordering impact screens,
drop us an email stating what size (height and width) you require and the space you have (width and height) for the screen with the frame.
All screens are custom made to your size requirements.
Please note !
Screen sizes include the 2.5” edging and grommets that go all around the screen.
i.e. the size is not just the white part of the screen.
So take this into account when ordering your screen size.
Frame size to Screen size
The frame should be around 2 inches per side greater than the screen size.
i.e. if the screen size is 12 ft x 9 ft (144' x 108') then the frame should be 12ft 4' x 9ft 4' (148' x 112').
Ensure that your room size takes into account that the screen on the frame will be 2 inches greater on all 4 sides.
Let us know what space you have for the screen and we'll work out what the actual screen size will be for you.
GSA Golf standard material custom size impact projection screens with edging, grommets and bungee cords.
Note: max height of screen is 10 feet. When ordering call or send required dimensions via e-mail to us
Price incudes 50 bungee cords and all box frame fittings
Standard size for 4:3 ratio is W 12ft x H 9ft
Wide screen size for 16:9 ratio is W 16ft x H 9ft
Recommended : use 15'x9' so that you can swap between standard and wide screen depending on your projector
Note! Custom sizes can be made to order at no extra cos
Note! All screens are supplied with the above shown frame fittings
but we don't supply the EMT conduit tubing as freight shipping these inexpensive items is too costly
1inch diameter EMT conduit piping is available at all good hardware stores (Lowes or Home Depot etc) for around $9.00 per 10ft length.
You'll need 14 of them for the complete box frame. See further below for the HomeDepot link for these pipes.
Note: The 1inch diameter conduit steel required to build the frame is supplied by Home Depot.
If you do not have a local Home Depot store near you then they will not offer shipping.
In this case you will have to make arrangements to pick up the order yourself.
For convenience, we can arrange payment and shipment of all 14 x 10 ft lengths of conduit piping for you
$ 250.00
Frame size to Screen size
The frame should be around 2 inches per side greater than the screen size.
i.e. if the screen size is 12 ft x 9 ft (144' x 108') then the frame should be 12ft 4' x 9ft 4' (148' x 112').
Standard screen
$ 799.00or $649 w/o frame
Price for 16'x9' (or any custom size) standard screen material impact screen with box frame fittings (8 X F3, 2 FT and 2 F4)
Preferred screen
$ 1,099.00or $949 w/o frame
Price for 16'x9' (or any custom size) preferred screen material impact screen with box frame fittings (8 X F3, 2 FT and 2 F4)
Premium screen
$ 1,299.00
Price for 16'x9' (or any custom size) premium screen material impact screen with box frame fittings (8 X F3, 2 FT and 2 F4)
or w/o frame fittings
Projection Calculator Software For Curved Screenshot
$1,149
Subtract $150 from all of the above prices if just purchasing the screen and bungees without the frame fittings
Custom size screens
Please note that all our screens are custom made to your exact size requirements
Just let us know what size - height and width - you want and we'll make your screen to these dimensions.
Note: Current lead time for custom made screens is around 2 to 3 weeks
Warning! International customers!
Please note: The products on this page are only available for this prices listed for US resident customers only.
Contact us if you are outside the US for a shipping quote for this product.
If you're an international customer and ignore this warning and still click the 'Buy Now' button to process the transaction
then the product will not be shipped and a 10% refund charge will be applied.
(US sales only - contact us for shipments outside the US)
International customers - Outside the US - Please note!
Please note: GSA Golf products are only available for these prices for US resident customers only.
Contact us if you are outside the US for a shipping quote to your country.
If you're an international customer and ignore this warning and still click the 'Buy Now' button to process the transaction
then the product will not be shipped and a 10% refund charge will be applied.
There is an additional standard $200 to $300 shipping charge
(depending on your country and weight of the product)
for any of our VisTrak systems required.
Additional International FedEx shipping charge
$ 200
Additional International FedEx shipping charge
$ 300
Home theater quality premium screen image impact screens
Custom Screens are usually made up and shipped next day ! with Free shipping !
Aspect ratios
Most projectors can do at least 16:9 aspect ratios these days
Screen size chart
Use this screen size calculator to calculate your desired screen size
Solid wall & cage frame enclosures
Click on the above images to read more about solid wall and cage frame enclosures
Screen valance
The screen bungeee cords and tubing are covered with a screen valance made of a number of 12ft x 8 inch wide black fultron strips
These thick black Fulton lengths are ideally suited for screen valances and give the screen a professional finished look
Set of 4 black Fulton rolls (48 ft) for screen sizes up to 15 ft wide and 9ft high
Curved Computer Screens
$ 199.00
Warning! International customers!
Please note: The products on this page are only available for this prices listed for US resident customers only.
Contact us if you are outside the US for a shipping quote for this product.
If you're an international customer and ignore this warning and still click the 'Buy Now' button to process the transaction
then the product will not be shipped and a 10% refund charge will be applied.
How to mount the screen Valance rolls
Projection Calculator Software For Curved Screens Reviews
Method 1
Pierce 2 holes close to each other in the center of the material.
For the screen sides left and right, pierce the holes vertically. i.e. one lower and one higher in line with each other
For the screen bottom and top, pierce the holes horizontally. i.e. one next to the other in line with each other
Thread a black cable tie through the hole and tie to the screen bungee cords from behind.
Repeat the procedure every foot or so for each side of the screen
Method 2
An alternative is to wrap the valance roll carpet around the frame piping and secure it in place with the screen bungees as shown above
Method 3
Velcro strips may also work.
The hook side of Velcro attaches well to the fluffy side of the rolls but not the smoother side.
The strips would have to be sewn into the rolls if the fluffy side is to be outside.
These screen valances can also be used to cover any exposed tubing if using a tube frame enclosure
Screen frame assembly instructions
Track drape enclosure screen mounting on the box frame
All screens are supplied with tube box frame fittings
The box frame is self standing but can be fixed to the floor and/or rear wall using 1 inch diameter tube clamps
Note! All screens are supplied with the above shown frame fittings but we don't supply the EMT conduit tubing as freight shipping these inexpensive items is too costly
1inch diameter EMT conduit piping is available at all good hardware stores (Lowes or Home Depot etc) for around $8.00 per 10ft length.
You'll need 14 of them for the complete box frame.
Frame size to Screen size
The frame should be around 2 inches per side greater than the screen size.
i.e. if the screen size is 12 ft x 9 ft (144' x 108') then the frame should be 12ft 4' x 9ft 4' (148' x 112').
The screen box frame assembly is quite straight forward but does require a little bit of effort and measuring
Start by cutting the conduit EMT piping to suit your screen size width and height and the EX pipes to suit your box depth requirements (usually from 1ft to 4ft).
The conduit pipes come in 10ft lengths so for a 12ft wide screen, the horizontal pipes
(HLB 1, HLB 2, HLF 1,HLF 2 and HUB 1, HUB 2, HUF 1 and HUF 2)
will be cut to 6ft each and for a 15ft wide screen they will be cut to 7.5 ft lengths each.
Build up the box frame as shown in the above image. Start with the floor level horizontal pipes and fittings,
then attach the vertical (VB 1, VB 2 and VMB ) pipes
and finally the upper level pipes and fittings HUB 1, HUB 2, HUF 1 and HUB 2.
Once the box frame is made up, you can start attaching the screen using the supplied bungee cords.
(see below on how to mount the screen with the bungee cords)
If you find that the box frame is slightly too small then you can extend the tubes an inch or two out of the fittings to suit.
If the box frame is too large then the pipes will have to be cut down in length to suit.
For added stability you can secure the frame to the floor and/or back wall with 1 inch diameter pipe clamps.
Buy 1 inch diameter conduit pipe directly from Home Depot with delivery by clicking on the above image
You'll require 14 lengths for the box frame screen frame
For convenience, we can arrange payment and shipment of all 14 x 10 ft lengths of conduit piping for you
$ 250.00
Set of 12 impact screen box frame tube fittings
8 F3 + 2 FT + 2 F4
$ 249.00
Note: this is just the frame fittings. You'll still require the 13 x 1 inch diameter conduit tubing from your local hardware store.
Which side of the screen is the front side ?
Warning! International customers!
Please note: The products on this page are only available for this prices listed for US resident customers only.
Contact us if you are outside the US for a shipping quote for this product.
If you're an international customer and ignore this warning and still click the 'Buy Now' button to process the transaction
then the product will not be shipped and a 10% refund charge will be applied.
Alternatively the screens can be mounted without a box frame directly to the floor and ceiling using clamps, hooks and bungee cords
You can also mount the screens like this without a screen frame but note then that there will be no side tension on the screen so some waving might appear in the screen
Mounting screen using rear extension frame only
How to mount the screen to the frame with the bungess
Insert the bungee cord through the grommet hole from behind the screen.
The ball now touches the backside of the black vinyl border.
Pull the cord over and around the frame/or 1' EMT pipe.
Lastly, loop the cord over the ball behind the screen.
Curved screens
If you'd like a curved screen then you can use the standard frame pipe fittings with bendable ABS A and B rods
Quote from 'www.draperinc.com'
Curved projection screens offer several key advantages over flat projection screens.
A curved screen helps offset pincushion distortion from a horizontal expansion lens, and also wraps the image around your periphery more than a flat screen for greater engagement with your projected image.
In addition, the curved image is subject to less ambient reflected light from your room, while your projector’s light is more accurately reflected by the perfectly smooth viewing surface for an ideal picture.
The amount of curvature is determined by the length of the 'A rods' whereas the arc length of the screen is determined by the two 'B rods'
'A rods' would normally be in the 3 ft range and 'B rods' in the 7.5 ft range for a total width of 15 ft
Note that other golf simulator manufacturers would charge you an arm and leg for curved screens (upwards of $10,000 !)
Our price for a 15 ft wide, 9 or 10 ft high curved screen with double grommets, bungees and fixtures (excluding EMT tubing but including the A and B rods)
Premium (home theater quality) custom size (up to 16ft wide) 3 layer curved screen
Contact us with your screen size requirements
Premium curved screen price including the A and B rods
(without the EMT pipes)
$ 1,899.00
Note : EMT pipes are not included - screen size up to 16ft wide and 10ft high
How to calculate the actual screen width
for a particular screen curvature depth or angle
Using the above online calculator you can determine the actual screen width for a particular screen curvature.
If you know the width of the available space for the screen
'Width of Arc'
and you know how far out the two far sides will extrude compared to the center of the screen
'Height of Arc'
then the actual screen width will be
'Length of Arc'
Purchase just the A and B rods for curved screens
$ 379.00
plus $120 shipping (US only)
Total $ 499.00
Set consists of 6 x 8ft A and B rod lengths
for a max screen arc width of 16ft
Purchase just the EMT pipe fittings for curved screens
Set of 14 impact screen box frame tube fittings
8 F3 + 2 FT + 2 F4
$ 249.00
Note: this is just the frame fittings. You'll still require the 14 x 1 inch diameter conduit tubing from your local hardware store.
Note that the upper A and B rods for curved screens will probably require extra lift support to prevent sagging.
The above ultra strong cable ties with ceiling hooks (supplied) will provide sufficient support to prevent any sagging
Click the above image to read more about warping your images to fit the curvature of the screen
Golf Simulator Impact screens on a track
If you need to use your golf simulator room for other uses and don't want a fixed impact screen
then try our impact screens on tracks.
Just slide away when not in use.
Note that there wouldn't be any tension on the screen if hang on a track so there might be some waves in the screen.
To purchase, just click on any of the screen option Buy Now buttons above and let us know that it is for a track
and we'll send you the tracks, rollers and hooks instead of the frame fittings.
Also let us know what size screen you want.
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