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Projector Lamp Articles — Presentation Tips

Projector Lamp Mode Settings Can Have Significant Impact on Lamp Life

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Extending lamp life by smart operator use of features provided in the projector settings, can reduce the frequency of buying replacement lamps  - saving on both the purchase price of the new lamp and the staff time and hassle factor of replacement. The major lamp manufacturers - Philips, Osram, Ushio, Panasonic, Iwasaki, Phoenix - have improved the lamp technology such that new lamps can now deliver 4000 hours or more even when operated at full power 100% of the time. However, the projector manufacturers have been just as important in helping extend lamp life with built-in, operator controlled settings that allow modulating brightness to meet...

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Footlamberts: What and Why?

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A footlambert (or foot-lambert) is a unit of luminance. It is used primarily in the projection industry to provide a value for luminance of images on a projection screen. 1 footlambert (fL) is equal to 3.43 candela per square meter (cd/m2). When the footlambert value is known for a projection system (the projector and a screen), assumptions can be made about the clarity of images when viewed with varying ambient light levels in a room. To calculate the footlamberts on a screen you need the following units: Projector Lumens Screen Gain Screen Width Screen Height Use online calculators to get...

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Ambient Light Reflective Screens Help Maintain Image Quality in Spaces with Extraneous Light

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When buying a projector - whether for a classroom, conference room or sports bar - “brightness” will certainly be one of the specifications at the top of the list to consider. However, it's not only the projector that determines the perception of brightness for the viewer. While the lumen output of the projector is a key variable, the reflective properties of the screen have a significant bearing on how “bright” the images appear. In addition, for spaces where blocking ambient light is either not possible or not desirable (eg. some light may be necessary for note taking in a classroom),...

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Factors Affecting the Brightness of a Projected Image

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Brightness sits at the top of the list when thinking about the quality of a projected image whether for conference rooms, classrooms, houses of worship or home theater applications. What are the factors that affect the brightness of a projected image? Projector BrightnessWhen buying a digital projector one of the key metrics found on manufacturer specification sheets is brightness. Measured in lumens, this quantifies the light output of the projector. More lumens, more brightness from the projector. Image Brightness on the ScreenWhat most of us are thinking when the topic is brightness is image brightness – how bright does the projected image...

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How Bright is Bright Enough for House of Worship Projection Systems?

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Choosing a projector for houses of worship starts with two key factors, both focus on projector lumen output or brightness: (1) size of the space (eg. 100 person or 250+ person sanctuary) and (2) amount of ambient light present in the space during projector use. Most sanctuaries or worship gathering spaces will not be totally dark during a service. So unlike a home theater room or even a conference room, digital projectors for churches need to have some serious lumen output to overcome the daylight or partially dimmed electric light for clear, easy to read images. The room size and distance...

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Key Points to Remember When Preparing a PowerPoint Slide Presentation

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The lights are low, the Epson fan hums, you are 15 minutes into a new product release PowerPoint presentation to a group of corporate managers and you realize two people at the end of the table are about to nod off. A sinking feeling. It could be these people would fall asleep in an earthquake, but more likely it’s a clue you need to revisit the basic tips for creating an effective presentation. Here is a list of high priority tips when creating a presentation: (1) The slide count should be minimized: Don’t use 50 slides, if 35 will get...

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