Ads
related to: projector size to distance calculatortemu.com has been visited by 1M+ users in the past month
- Biggest Sale Ever
Team up, price down
Highly rated, low price
- Clearance Sale
Enjoy Wholesale Prices
Find Everything You Need
- $200 Off – Hurry
Special for you
Daily must-haves
- Shop & Save $200
Up To 90% Off For Everything
Countless Choices For Low Prices
- Biggest Sale Ever
walmart.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
In video projection terminology, throw is the distance between a video projector lens and the screen on which it shines. It is given as a ratio (called throw ratio), which describes the relationship between the distance to the screen and the width of the screen (assuming the image is to fill the screen fully).
The "optimal viewing distance" [5] is based on the limits of the human eye, i.e. its angle of resolution. This is its ability to distinguish between two pixels. For normal visual acuity (6/6 vision), this angle is 1 arcmin. To obtain a fixed distance for a given resolution, it must be expressed in picture heights (H). [5]
The size of the reels can vary based on the projectors, but generally films are divided and distributed in reels of up to 2,000 feet (610 metres), about 22 minutes at 24 frames/sec). Some projectors can even accommodate up to 6,000 feet (1,800 metres), which minimizes the number of changeovers (see below) in a showing.
An overhead projector works on the same principle as a slide projector, in which a focusing lens projects light from an illuminated slide onto a projection screen where a real image is formed. However some differences are necessitated by the much larger size of the transparencies used (generally the size of a printed page), and the requirement ...
This chart shows the most common display resolutions, with the color of each resolution type indicating the display ratio (e.g., red indicates a 4:3 ratio).
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers .
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A projector's throw ratio is used when installing projectors to control the size of the projected display. [1] For example, if the throw ratio is 2:1 and the projector is fourteen feet away from the screen, then the display width will be seven feet.
Ads
related to: projector size to distance calculatortemu.com has been visited by 1M+ users in the past month
walmart.com has been visited by 1M+ users in the past month