WHAT IS meant by optimum screen size for a home projector? - home projector screens
I see the various computers screen size for home projectors that are online, and within 18 feet of viewing distance I have a proposal on the screen size 56 "x 100". I wonder what determines the optimum screen size. Not like you get it, but what it is. Why not 60 "x 107" better on the same track?
I use a Sony VPL-AW15 BRAVIA LCD projector 16:9
I would like someone to define what it is. What are determinants?
Sunday, January 24, 2010
Home Projector Screens WHAT IS Meant By Optimum Screen Size For A Home Projector?
Subscribe to:
Post Comments (Atom)
2 comments:
In context, the optimum screen size refers to the aspect ratio, viewing distance, image resolution and to a lesser extent the secondary factors, such as increased brightness of the screen projector. and the screen door effect. It's really a question of balance. Read on.
First, recognize that there is no absolute criterion for determining the size of the screen (after all, have different people) have different preferences, but there are guidelines for the viewing angle (l opening angle of the display) position of the screen, such as those by THX (1 link. Horizontal viewing angle of 40 degrees or less, a maximum of 15 degree angle of the screen) and SMPTE (minimum horizontal viewing angle of 30 degrees).
One obvious consequence is that the perceived size screen (for example, the angle), depending on the distance and angle constant at different distances from the size of the screen display should be different. For example, a 100-inch to 12 feet would be the same angle of view of a 50-inch screen to give 6 meters is the main reason why the optimal size of the display for t.Positions (or more accurately, a set of size, as have the personal preferences) to be allowed.
Just in this aspect of the size of the screen is often defined by the size of the diagonal of the screen and the impact on the aspect ratio of this dimension. See 2 Link for a calculator that takes into account.
Finally, the 3 most important factors, the problems of image resolution, because the human eye to resolve detail Atforest vision of 20/20) to about 1 / 60 degree arc. For each image resolution (eg 720 or 1080) have a range of distance, can be captured in high resolution. See article on the link for the 3rd Debate, but as a user of the projector, the point of THX (or SMPTE recommended) to achieve optimal screen size is the highest quality possible ... and in these days, the means to 1920x1080.
Are also secondary considerations in this case as follows. The impact of the brightness of the projector image intensity at a certain distance. Since the brightness of the image has a minimum and maximum recommended (12-22 foot-Lamberts, 4 see link) that you do notI'm not too far back (brightness decreases with distance), or the project) too big (screen drop more light on the screen. Projectorcentral.com 's-projector simulator (Link 5) is useful because it shows (Note: Manu on the basis of specifications published) are increased the brightness depending on the distance and screen size and the screen .. . not to be confused with the optimum screen size.
A further increase of the screen can be used for a brilliant componsate bit weak), but at the risk of damaging the image by the "hot spots", limited viewing angles and color changes.
Finally, the net effect (SDE) must be considered when the minimum viewing distance for each screen size. SDE is at a distance from the next row in projectors visible black or dark gray pixels around the image. Are exhibit very different in their tendency to SDE. .. less LCOS and LCD and DLP is particularly sensitive. The projector has one (see last link) viewing distance of at least 1.8 x the screen width to avoid IESEng SDE.
So the bottom line ... no one size fits best screen, but there is a minimum and the maximum allowed under the eyes, SDE effect the brightness of the projector, etc. In this area) is reduced to personal preferences (and physical limitations such as size of rooms.
I hope this helps to clarify the relationship.
Screen size Optimum refers to the larger viewing area without distorting the image in a certain distance.
Post a Comment