Fl foot lambert formula vs projectorcentral calculator. So for example, the most common projector throw ratio is 2. For uniform, isotropic light source, the luminous flux. With its stable solidstate light source capable of producing over 20,000 hours of illumination, digital projections highlite laser projection technology is a revolution of ease and simplicity.
From painting a digital cityscape in the background to using a screen for story narrative, you can do a lot when you put a projector behind an actor, person, musician, etc in an event. The throw distance and the size of the image it produces on the screen are proportional to each other based. Its also the one that best incorporates two subcomponents i didnt fully understand and appreciate until just a few years ago lens dimming factor ldf and lens speed f. If you were to reduce the image size to a 180 diagonal x 7. Real d xl high efficient polar system dual projector laser e. Discover a universal assistant for all of your unit conversion needs download the free demo version right away. This means that for each foot of image width, the projector needs to be 2 feet away or dw 21 2. Digital projection can not accept liability for damages of any. Dukane audio visual proudly offer a full line of data video projectors, document cameras, visual presenters, interactive products, screens, voice amplification systems, speaker systems, technology carts, accessories and more. The foot lambert formula has been given as fl lumens gain screen area in sq ft if a 16. We use realworld measurements and percentile averaging for maximum accuracy.
As an example, the society for motion picture and television engineers recommends 16foot lamberts in a dark, dedicated theater. Our projector installation calculator can help you find the perfect projector distance and screen size for your room. This projector calculator tool is intended as a guide to selecting your projector and lens. In order to help you make a final selection based on material, resolution support, toughness and more. Find out how much you can save in a few quick steps. Epson projectors lead the market with their innovative technology. My mrs has said i can put home cinema projector and screen in the lounge. A projectors distance from the lens to the screen surface is called the throw distance. Lambert was the inventor of the hyperbolic functions, and the first to study map projections scientifically.
So if im using a projector with a throw ratio of 2. Evaluating lux vs lumen to decide which projector is best. Type the value in the box next to footcandle ftc, fc. The total cost of ownership calculator lets you compare nec displays with other displays, with your precise energy consumption and costs, to give you the big picture on tco. Use our custom projector screen size calculator with our other two great screen tools.
Reverse screen brightness to projector lumen calculator projectors only projector locations projectors only 5. The us unit is the one typically used in home theater design and calibration. A footlambert or footlambert fl, sometimes fl or ftl is a unit of luminance in united states customary units and some other unit systems. A footlambert or footlambert fl, sometimes fl is a unit of measurement of luminance in u.
All model types business education home portable professional. You are providing your consent to epson america, inc. Its the sizing and brightness download on this page. Projector screen size calculator distance calculator. This free pc software was developed to work on windows xp, windows 7 or windows 8 and is compatible with 32bit systems. The luminance of a perfect lambertian diffuse reflecting surface in footlamberts is equal to the incident. Select your screens aspect ratio and input any dimension to calculate your screens overall viewable area. This free software is an intellectual property of epson. For reference, cinemas usually produce between 12 and 22 footlamberts and a direct view tv produces 35 footlamberts or more.
The calculator hcinema shows me for the acer p1100 and a 88 screen with 1. Projector image calculator nec projector image and lens. You can measure luminance in cdm2 or foot lamberts on the basis of screen gain. Projection distance calculator free download windows version. Cinematiccolor for colours as directors envisioned benq. Ricoh projection calculator, a flash based tool for calculating projected image sizes. Image brightness targets and calculating foot lamberts. Need help calculating the right size projector screen for your needs. How projection screens can make or break a projection. It lets you calculate throw distance based on entered lens ratio and vice versa.
The easysimplebasic way is to use the projector calculator from projector central. These seem to be the predominant projections for maps of the us lower 48. Projection calculator pro projector to screen distance. If you would like a copy of the excel spreadsheet, it can be found on my. Theater projector cost nondiscounted retail pricing for. Foot lamberts are a way to interpret accurately how bright your screen will be. Lumens to candela calculator candela to lumens calculation. Projection calculator classic throw distance and screen size. Phantom of opera leveraged projection as a theatrical or digital backdrop to fake an audience for one shot. For multiple languages, use the projection calculator classic. The digital screen checker ships with a mounting tripod and 3d glasses holder. Footcandles to lumenssquare meter conversion calculator. Image brightness targets and calculating foot lamberts from projector lumens. Using the sanyo z5 projector as an example, its lumens is given as 1100 ansi.
A foot lambert is a measurement of visible light that equals 1 circular candela per square foot, or 3. Projection calculator projectors products ricoh global. Columns can be sorted by clicking the columns header. As you can see from my thread im in need of help choosing a projector for my home cinema projector. Dukane is an american company serving the education, corporate, government and house of worship markets for over 85 years.
Whether you enjoy movies, games or sports events, every image is sure to pop off the screen with epsons stateofthe art, innovative home projectors. Theres also an omni calculator online for foot lamberts if you prefer that approach. Or try the projection calculator pro and get recommended screen sizes, throw distances, room lighting, screen brightness, seating and projector placement based on your application. You may withdraw your consent or view our privacy policy at any time.
Real d z screen, master image clarity polarisation recuperation e. The footlambert is named after johann heinrich lambert 17281777, a swissgerman mathematician, physicist and. We recommend that every person considering a projector screen use each of these three tools to. Always check the official product specifications and test the distance in the chosen environment before fixing any mounting parts to a wall or ceiling. To contact epson america, you may write to 3840 kilroy airport way, long beach, ca 90806 or call 18004637766. Im trying to find a simple way to evaluate the amount of lux i need, and use it for a good cost benefit projector choice.
Choosing a target foot lambert reading how many fl depends on user preferences, your usage habits and lamp budget, 3d vs. Simulation visualization archives digital projection. Using projection as a theatrical or digital backdrop. Foot lamberts is a calculation thats used that takes into account the light output of the projector, the size of the image, and the gain of the screen, and comes up with an example. Projector calculator 4k projectors and 4k projector screens. The baseline lumens data is more accurate than any other projector calculator. Choose a screen size from the right or select customize to customize the screen size. For the older calculator, use the flash projection calculator. Download luminance unit converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. The society of motion picture and television engineers smpte recommends 16 footlamberts in a dark movie theater. So naturally all i have thought about is home cinema.
For a hypothetical 700 lumen output projector, and 1. Use the following calculator to convert between footcandles and lumenssquare meter. Projector calculator projector screen calculator aspect ratio. View the epson projection distance calculators and display size calculator for optimal projection setup. To ensure that you get the possible best experience, this website utilizes thirdparty profiling cookies. Enter the screen luminance either in nits or footlambert. I plugged in number to your calculator but when i plugged in an ideal footlambert rate of 16, it said the projector would only need about 433 lumens.
Tools and calculators nec display solutions of america. The foot lambert reading is shown on an led digital display and is expressed to at least one decimal place. It is worth saying that almost every single home theater projector is ideal around 120 to 3 diagonals. Use our screen size calculator to determine the viewable area of a screen based on any 1 dimension use our projector calculator to determine throw distance and optimal screen sized based on your projector use our viewing distance calculator to figure out the optimal seating distance for your audience. Home theater projector installation labor, basic basic labor to install home theater projector with favorable site conditions. The result will appear in the box next to lumensquare meter lmm2. Calculate the possible image size width, height, diagonal for a given distance distance calculate the necessary projection distance distance for wide angle and telephoto lens for a. Footlamberts ftl are the unit of measure used by the motion picture industry to specify how much light should be reflected off the movie screen in a 1foot x 1foot area. As i came to learn, the two key elements are foot lamberts fl and contrast. The basic formula most pros use when figuring throw distance is one foot of screen width to every two feet of separation between lens and screen. If you need to convert footcandles to other units, please try our universal illumination unit converter. By closing this window or continuing to browse this website, you consent to the use of these cookies.
The projector was sourced through digital projections distributor in australia, amber technology. Projection calculator classic find your screen size and throw distance with the projection calculator classic by following these 2 easy steps. For the perfect large scale projector installation, the right lens is vital. Foot lamberts are the measured brightness of a projector s output spread over the surface of your projection screen.