Clever Topics

Projector Aspect Ratio

The aspect ratio is the ratio of the width of an image to its height.
Projectors are divided between 4:3 (computer monitor shape) and 16:9 (widescreen TV shape) aspect ratios.
The 4:3 projectors are mainly used for business purposes to use with a computer.
The 16:9 projectors are used for home cinema or to project DVDs.
There is also a 16:10 aspect ratio seen in widescreen business projectors. These projectors have been designed for use with widescreen computers, although they are also used by home users. Read the rest of this entry »

Projector Resolution

The resolution is the number of pixels that make up an image – e.g. 800 x 600 means the picture is made of 800 columns of pixels by 600 rows of pixels; for a total of 480.000 (800×600) pixels making up the whole image. The larger the number of pixels the higher the resolution and the sharper and more detailed the image is. Read the rest of this entry »

Projector Brightness

Brightness is measured in ANSI (American National Standards Institute) lumens: the higher the ANSI lumens level, the brighter the projector.
So how bright should your projector be? First you need to consider the following factors: Read the rest of this entry »