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JRU&JRU Es ist gerade umgekehrt, diese ALR-Leinwand ist für normale Beamer völlig ungeeignet! Es ist eine Spezialleinwand nur für Ultrakurz-Laserbeamer. Das Licht des Lasers muss schräg auf die Leinwand treffen.

2023-03-30 02:12:55 Utile (0)
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JRU&JRU Gain: 0,6 Viewing Angle: 160° Ambient Light Resistance: 92 % (ALR = Ambient Light Reflecting) The entire screen is provided with approx. 0.5mm high horizontal lines, which, seen from the side, result in a fine 3-corner structure. The upper side of the triangle is black and the lower side is white. As a result, the light from the short-distance projector (which comes from below) is reflected on the white surface and shines forward. However, the ambient light from above (e.g. lamps) or from the side (e.g. window) hits the black surface (for the most part) and is swallowed up there. Buyers should be aware that ALR screens cannot be used with normal, front-facing projectors, but only with short-throw projectors.

2023-03-30 02:00:29 Utile (0)
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JRU&JRU I use a "Xiaomi Mijia Laserprojektor Full HD 4K ALPD 3.0 2000 ANSI Lumen", that is o.k. by daylight. I think only 1200 lumens are not enough to illuminate the whole screen in daylight. Certainly not in the sunshine.

2022-12-08 03:51:15 Utile (0)
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JRU&JRU 25/11/2021
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JRU&JRU No,output is DC, not AC. DC with 12 Volt or 24 Volt battery. Why AC? For example, 10 A * 12 V = 120 W. The capacity of the battery can be small as 1 Ah or high as 1.000.000 Ah ... The capacity of the battery is only important for how long the LEDs stay lit at night.

2021-04-03 12:16:32 Utile (0)
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