how far away does a projector need to be
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- If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen.
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LCD projector A projector's throw ratio is used when installing projectors to control the size of the projected display. 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.
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- Report Abuse. You should place the projector at less 10 to 12 feet away. Keep in mind that projectors needs to be in a dark room to be effective. The lamps on a projector only last about 2,000 hours and the cost of replacing them starts at $50 to around $300.For a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes.Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.or a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes. Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.
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- For home theater projectors where ambient light is kept to a minimum, you'll need a minimum of 1500 lumens. For classrooms, conference rooms or rooms with windows, a projector with a minimum of 2500 lumens is best.
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The big picture: Projection screen basics Aspect ratio refers to the proportions between the width of the screen compared with its height. All HDTV broadcasts are 16x9, so a 16-foot-wide screen would be 9 feet tall. This is also known as 1.78:1. Most big movies are wider, 2.35:1 or so (roughly 21x9). While nearly all projectors are also 16x9, there are multiple methods for showing 2.35:1 movies on a 16x9 projector on a 2.35:1 screen. As in, your screen doesn't have to be 16x9 just because the projector is.
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Optimum HDTV viewing distance Viewing an HDTV from a position where the display occupies a 30-degree field of view is widely quoted as the SMPTE (or SMPTE 30) recommendation (equivalent to about 1.6264 times the screen size in a 16:9 TV).
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- If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen. (7 * 2 and 7 * 2.4 = 14-16.8). Example 2.
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How Far Apart Should Recessed Lights Be If you need more illumination, place the lights 4 to 5 ft distance. This should be sufficient for reading and other tasks. At intervals of 5 ft, the initial light needs to be 30” from the wall. Setting up Recessed Lights Yourself.
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- The 3D-RF emitter is attached to the projector once at setup and then the user wears the 3D-RF glasses. On-axis efficiencies are 12cd/lm for the 8-degree lens plus LZC emitter and 8cd/lm for the 15-degree lens and LZP emitter. When glue is dry, insert emitter lines in compression fittings. The E-2 emitter is a standard VESA-compatible work area emitter for desktop use with a 12ft.
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- Projector brightness is measured in lumens. For home theater projectors where ambient light is kept to a minimum, you'll need a minimum of 1500 lumens. For classrooms, conference rooms or rooms with windows, a projector with a minimum of 2500 lumens is best.
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- However, bear in mind that because of the extra detail in the picture, you can sit a bit closer to the TV screen and still watch in comfort. For example, with a 40-inch 4K TV you can sit around 8.3 feet away from it. For a 50-inch, that goes up to 10.4 feet and for a 55-inch 11.4 feet. Ultimately, though, how close you sit to your TV - whether it's a HD or 4K model - is down to your own personal preference and the way you've set up your living room.
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- Bottom line, unless you are looking at a fairly unusual projector, 3LCD projectors (and LCoS) ones will draw about 20, perhaps 25% less than a single chip DLP projector. From an eco standpoint, saving 30 - 75 watts is not exactly huge.
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- Projectors come in a wide range of light outputs, which are measured in ANSI lumens or just lumens for short. The brighter the projector, the higher the ANSI lumen rating, and (all else being equal) the more it costs.n today's market, projectors can be grouped by ANSI lumen output as follows: 1  Less than 2000 lumens. 2  Typically small and highly portable, these are the lowest light output projectors available today, and they are typically the least expensive.
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How to Install a Home Theater Projector and Screen from Start to Finish For example, if your screen is 87” wide and the throw distance of your projector is 1.3, the projector should be 113” (87x1.3=113”) from the screen. Remember to measure from the center of the projector’s lens straight to the screen, like the above image shows.
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TV Viewing Distance Calculator SMPTE and THX recommends that optimum viewing distance should also give a viewing angle of 30 degrees for an immersive cinematic experience. This is harder to control in home situations, but is possible on some large TV sets or home projectors.
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- On the high end, projectors can be. used to create a very large image size, as much as 300” or more. Most produce. high-quality images at a size of 90 to 180 inches. Flat screen televisions, by. comparison more commonly offer screens from 32 to 70 inches. Professional.
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- (light coming from the screen surface) is measured in foot lamberts. • Screen Size—While a very large screen can be immersive it is important to remember that the higher the square footage of a viewing area the more projector light is required to fill it properly. Projector brightness can be a large part of the cost equation
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- For example, a 55 television will have an ideal viewing distance of 88 (55 x 1.6), or 7 feet and 4 inches. The following table gives you the minimum distance for watching a 1080p HDTV screen while keeping the angular resolution to the maximum that the human eye can perceive.
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- Most projectors top out at about 2:1 throw ratio, giving you a minimum screen size of 14.5x8.15 FEET! That screen would have an area of 118 square feet, requiring almost 1200 lumens to achieve 10 ft-l of brightness on a unity gain screen, sort of a minimum acceptable level.
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HESI Review Test-Maternity The nurse bases the explanation on knowledge that for the normal newborn, the. anterior fontanel closes at 12 to 18 months and the posterior by the end of the second month. In the normal infant the anterior fontanel closes at 12 to 18 months of age and the posterior fontanel by the end of the second month (D).hen assessing a client who is at 12-weeks gestation, the nurse recommends that she and her husband consider attending childbirth preparation classes. At 30-weeks gestation is closest to the time parents would be ready for such classes.
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Home theater viewing angles, distances and sightlines 1 Due to the smaller screen sizes and viewing distances in a home theater the viewing angle changes much faster than it would do in a cinema. 2  A front row in a theater with three rows of seats might have a viewing angle of as much as 60 degrees with the back row only 26 degrees. 3  Sightlines.
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- Keep in mind that when comparing lumens you are dealing with ratios. For example, an 3000 lumen projector will look 50% brighter than a 1500 lumen projector. A 5000 lumen projector will only look 30% brighter than a 3500 lumen projector, even though there is a difference of 1500 lumens in both cases.ontrast Ratio works hand in hand with lumens. A projector with a 1000:1 contrast ratio will look brighter than one with 400:1, even though they have the same lumen rating. This is particularly true in a darkened room.
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Church Projectors Buyer's Guide Second, we need to know the distance your projector will be from the screen. Generally the ideal distance is double the width of your screen. For example, if your screen is eight feet wide, your projector should be about 16 feet back from the screen. If your sanctuary is able to accommodate that setup then read on.
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- In reply to: Connecting a projector to a laptop. You should see your desktop projected if that's what shows on the laptop. It sounds, however, that you're not getting the full screen display and it could be a problem of aspect ratio. Perhaps switching to a 4:3 format rather than wide screen will work.n reply to: Connecting a projector to a laptop. Go to display properties under the settings tab and click the advanced tab then click monitor. There is a drop down for screen refresh rate.