Frequently Asked Question
Concave Projection Screen
Q : What are the primary applications for these screens?
Q : What are the Mocom concaved screens made of?
Q : What are the key differences between Mocom's front-projection screens and conventional front-projection screens?
Traditional paper and glass-bead screens are only primarily more suitable than Mocom screens in where the screens need to be rolled up (Mocom 18-23gain front-projection screens are solid lenses, so they cannot be rolled up.
This performance benefits of Mocom screens will enable customers to place Mocom’s 18/23-gain screens into situations that previously would have required either rear-projection or video (e.g. plasma) displays. Mocom screens far outperform rear-projection or plasma displays. In addition, they provide far lower maintenance costs.
Q : How do you clean a Mocom screen?
A : Mocom concaved front projection screens have an ultra-fine grain which can pick up figerprint and dust. They can be cleaned using lint free cloth. In addition, you can use a hair dryer on COOL air to clean out the dust.
A : However, we do not recommend that you to use them it applications where the sunlight will be at the same angle as the projector light source for obvious reasons or in wet or windy condition. The off-axis ambient light rejection of these screens is astonishingly high, allowing them to be used as billboards under full vapor lighting in trade shows and other public facilities.
Q : What projector do I need?
A : It’s all depending on your needs. Bigger screen or brighter images will require higher lumens. We do not recommend short throw projectors because the curvature of the screen is calculated using a normal projector’s throw distance. For short throw projector’s, the curvature of the screen has to be calculated differently, so please check with us for more information if you need to use a short throw projector.
Q : What is the best viewing position?
A :In general the best viewing position is behind the projector. The optimal viewing position is equal to or further away from the screen than the center of the sphere represented by the screen’s curvature. For the larger Mocom screens, the center of the sphere is approximately 19.5 feet from the face of the screen. However, a large number of our screens in use are actively viewed at shorter distances and still achieve very satisfactory results. Please be aware that as you get close to the screen, limitations in the projector such as– pixelation, etc. — become visible due to the sharpness of Mocom screens.)
Q : How do I mount it?
A : Screens below 150″ come with a fiberglass back-bracket that has two vertical rows of threaded studs set approximately 6″ above the centerline of the screen. These can be mounted on hooks which will allow the screen to be swung into the correct angle for viewing.
※ Please refer to the “ Mocom Screen Assembly & Installation guide ”
Q : How do I adjust the screen angle for optimum light output?
A : It’s easy. Start by adjusting the vertical angle of the screen so that the center of the screen is exactly perpendicular to the line drawn from the light source (projector).
Then, adjust the vertical angle for the highest brightness when observed from the main viewing positions.
※ Please refer to the “ Mocom concaved Screen Assembly & Installation guide ”
Dupic (Double sided) Screen
Q : What are the key differences between Mocom's Dupic dual projection screens and conventional rear-projection screens?
A :The Dupic film material has been specially formulated to provide exactly the same amount of reflection as transmission (50:50) while conventional rear screens have different brightness and clarity on each side. With Dupic screen, you don’t get the hot spots and corner fading found with other rear screen systems. The result is that for the first time 360° viewing is possible for projected images on glass panels suspended in mid-air. With no large box required behind the screen, weight and cosmetic issues are removed, and servicing is simplified to maintaining easy access to the video projector.
Q : What are the cleaning instructions?
General
Q : Where can I buy the screen??
A :Go to the Contact Us and to check for distributors in your area. If there are no distributors in your area, please contact us directly at this email address info@mocomscreens.com. If you are interested in becoming a distributor or dealer, please fill out the application found here .



