The general rule is that under normal florescent lighting you want about 80 lumens of advertised projection brightness per square foot of screen space to achieve about a 10:1 contrast ratio. Yes, that's the minimum goal ten to one contrast ratio. Contrast Ratio: Contrast ratio measures the difference between pure white and extreme black. Your projector’s contrast ratio will contribute to how vivid the final projected image is. As with lumens, ANSI contrast ratios provide a more accurate measurement due to more standardized test criteria. A lumen is measurment of light. The basic idea is 1 lumen is equal the light 1 candle would put out. Contrast ratio is the difference between really white and really black. The higher the contrast ratio (to a point) will allow images to stand out in a room with more ambient lightwithout looking "washed out". Brightness: 1100 ANSI Lumens. Contrast ratio 12000:1 Video screen of ~10.5 feet diagonal @ 20 foot viewing distance. Brightness or contrast ratio? I would go with contrast ratio. I don't like washed out colors. The viewing screen also makes a huge difference in contrast ratio. Buy one made for video. But you will always need a darkened room. That may be the big downside to a projector.
Contrast Ratio: 20,000:1; Aspect Ratio: 16:9 (Native), 4:3 (Compatible); Throw Ratio: 1.41 (64"@78.74"); Lamp Life: 3000 Hour (Normal Mode); 4000 Hour 21 Jan 2016 Contrast Ratio – (ANSI vs Dynamic) This is the difference between the darkest and the brightest pixel. Higher is always better – it points to the With a high lumen rate, a projection ratio of 2000:1, and with 16.7 million colour Hz contrast ratio, this portable projector offers great colour, sound and clarity. It
Conference Room: A high-lumens projector will deliver bright and clear images that will so resolution, brightness and contrast ratio will all be important. Gamma is a basic, and very important factor in images and contrast ratios. of an image in the number of lumens reflected from a screen per square foot. Here is an image from AVP: Alien vs Predator, where the extra On/Off CR of 700,000:1 Contrast Ratio: 20,000:1; Aspect Ratio: 16:9 (Native), 4:3 (Compatible); Throw Ratio: 1.41 (64"@78.74"); Lamp Life: 3000 Hour (Normal Mode); 4000 Hour
Projectors of 2,500-3,000 lumens put out enough light for normal business or You'll want to choose a projector with a very high contrast ratio if you plan to Full HD 3D home cinema; High brightness of 2,500 lumens; Lens shift, 1.6x zoom , horizontal and vertical keystone correction; 60,000:1 contrast ratio. VPL-GT100 (VPLGT100). Professional 4K SXRD projector with 2,000 lumens brightness and 1,000,000:1 contrast ratio. Where to buy VPL-GT100 (VPLGT100). Professional 4K SXRD projector with 2,000 lumens brightness and 1,000,000:1 contrast ratio. Where to buy AV applications for meeting rooms should have an image contrast ratio of 4,275 lumens. 14,253 lumens. 3,431 lumens. Projector brightness adjusted.
With a high lumen rate, a projection ratio of 2000:1, and with 16.7 million colour Hz contrast ratio, this portable projector offers great colour, sound and clarity. It 3,600 lumens; 20,000:1 contrast ratio; 80 to 100-inch projection size; HDMI, USB, and other cable connections; 16 Watt speaker; 1920 by 5,000-lumen-class, WUXGA resolution, 10,000:1 contrast ratio. 121-042107-XX. End-of-production: May 07, 2019. Buy Acer H6502BD Projector, 3400 Lumens, 20000:1 Contrast Ratio, 28"-300" Image Size, HDMI, USB, VGA, Built-in Speaker with fast shipping and top-rated The projector creates an image with a contrast ratio 'on top' of the ambience light. ANSI Lumen = Illuminance (lux) * Area (square meters) / Screen Gain