The brightness of a projector is measured in ANSI lumens. The lumen is the unit of luminous flux and relates to the brightness of one candle. ANSI (American National Standard Institute) is an independent standard-setting agency.
More lumens mean more brightness; Projectors tend to range from 600 to 3000+ lumens.
The resolution measures the number of pixels per inch at which the projector displays the data. There are 4 main resolution standards: VGA, SVGA, XGA and SXGA.
VGA
640 x 480 |
SVGA
800 x 600 |
XGA
1024 x 768 |
SXGA
1280 x 1024 |
The 2 numbers respectively measure the horizontal and vertical number of pixels projected. |
The LV7325 offers you the ability to deliver a PC-less presentation thanks to the PCMCIA card slot. The presentation is saved from your PC on this type of card (like a floppy disk but smaller) and once the card is inserted into the projector it plays your presentation.
This type of card is a credit-card size storage PC card developed to the widely accepted standards of the Personal Computer Memory Card International Association (PCMCIA). Other peripherals, such as digital cameras, use the same type of storage card.
The contrast ratio shows the difference between the projected white and projected black in the target image. The higher the ratio, the higher the differentiation between dark and light areas. High contrast means sharper images.
Projecting an image at an angle produces a distorted image called keystone effect., eg: the top image is narrower than the bottom. This trapezoidal image distortion is corrected by the Digital Keystone adjustment function.
Gamma adjustment lets users control an image's tonal distribution. Images that are not properly adjusted can appear either too light or too dark. By varying the projector's gamma level, the user can get the right intensity of colors to match his or her personal taste.
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| Before Adjustment |
After Adjustment |
This new patented Canon raises the light intensity emitted by the projector by 25% and delivers an exceptional image quality. Turbo Bright can be used whenever you use your Canon projector without any increase of power consumption, lamp wear, or cost.
This technology allows us to increase the rate of focusing light onto the LCD panels. Inside the LCD panel of a projector there are electric cables and elements that block the flow of light. Canon utilises a special Micro Lens array for the LV7525 and LV7325, placed on each liquid crystal pixel to effectively control the collection of light to each pixel. So there is less obstruction and more light.
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