LED Projectors

The world of projectors is constantly changing, but one thing that remains the same is the light source used by the projectors. But that is now changing with the introduction of LED (Light emitting diode) light source. LED light sources have some advantages over conventional lamps. LED projectors require little lamp maintenance, as there is no lamp to be changed. Also, LED light sources last significantly longer (estimated 10 to 40 years) than the traditional lamps and use less power. Then there is the color...most LED projectors deliver fabulous color range, with intensified reds, greens, and blues. Most important, LED projectors' image stability, saturated colors, and accurate rendition of color-rich charts and multimedia content.

So what is the negative? First of all since LED is still considered a new technology for projectors...they are going to cost a little bit more. Also, as far lumens go, the LED currently is about half of the traditional projector lamp.

When it comes down to it, the end users just needs to do a side-by-side comparison to really see the difference.

Hooking Your Projector Up To Cable TV

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Whether you are installing a projector in a family room, conference room or classroom, at some point you may want to connect your projector to your cable service so you can turn your projector into a big screen TV. There are many option available, but here is a simple and affordable solution.

First of all, it is always a good idea to have the cable tested to make sure you have a strong signal coming to all receiving points. This is very important if you are planning on using this solutions to broadcast to multiple rooms. Next, you will need a tuner box that will connect to the coax cable and convert it to the correct signal for the projector...remember that the typical projector does not have a TV tuner in it, so you cannot connect your cable directly to it. One cheap solution is to use either an older model VCR that actually has a TV tuner in it. A more reasonable solution is to use a TV to Projector Tuner Box like the Geniatech SuperaColor LCD TV [Click Here] for the installation guide. Another option is the AV Tool - AVT-3400 SXGA Theater [Click Here] to visit site. Both of these tools will take you analog cable signal and allow it to be sent to your projector. Remember that one will need to be purchase for each projector receiving the signal and you may also need to purchase additional cabling (coax and VGA cable)to make the connection complete. Any additional cabling can be purchase at a electronic store or a home improvement store.

Join us next time as we talk about adding a sound system to you projector.

Projectors for the 21st Century - Ultra Short Throw Projectors

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Let's be honest, not every room is conducive for the mounting of a projector. In fact, mounting may not be the only issue that we run into when mounting a projector, there is also the shadow that they can cast from the presenter and the glare in the eyes.

Many major projector companies have solved these issues by releasing ultra short throw projectors. These state of the art projectors feature a very short throw distance, eliminating the problem of the presenter obstructing the projected image, virtually eliminate shadows, glare and distracting projector light. Depending on the style of short throw projector used will determine the mounting method. Many of these projectors are flush mounted directly above or below the projection surface and may only stick out about 12 inches over the surface. (See video in right column) While others like the Epson EMP series, use a fixed arm that is mounted to the wall just above the area you are projecting on; these will stick out about two to three feet over the surface (See video in right hand column) Using the more flush mount projectors like the Hitachi CP/ED series and Sanyo PLC series not only offer flexibility in their mounting, but the can save time and money.

Some companies who offer ultra short throw projectors:
*Hitachi’s ultra short throw CP-A100/ED-A100
*Sanyo PLC-XL50
*NEC WT600
*Epson EMP-400W / EMP-400We Ultra-Short
*SMART Tech 685ix

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LCD and DLP Projector Bulbs Tips

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Believe it or not, the cost of projector bulbs has dropped substantially over the years. But paying $200 to $300 for a projector bulb is still a lot of money to spend on a device every two to three years. So, here are some simple tips that will extend the life of your projector bulb.
1. Clean your filters on a regular basis. Plugged of block filters can reduce air-flow...this can cause a build up of heat...high heat is the enemy of your projector bulb.
2. Set the bulb to economy mode. This mode is usually dimmer which can on vereage extend the life of the bulb by 1 year.
3. If mobile, allow your projector sufficient time to cool down. Remember that when running, the bulb can produce high heat...this heat needs time to dissipate so the filament and the rest of the electronic can stabilize. Moving a projector when the filament is hot can cause it to break.
4. Make sure you purchase you bulb from a lucrative company that sell certified bulbs. Beware of refurbished bulbs. A bulb is a big investment.
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What Should You Consider Before You Purchase?

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Just like any technology, purchasing projectors for your school, business or home can be overwhelming. So we have created a list of a few things to consider before making your purchase.

• Maintenance costs – Will there be additional costs to maintain the projector? How much are the bulbs and filters?
• Picture settings – Does the projector offer multiple surface settings so the image can be projected on multiple surfaces (blackboard, whiteboard, concrete wall)
• Speaker wattage – This is only important for rooms where the projector will project the sound. Projectors can have speaker that range in 1 watt to 10 watts.
• Mounting – Does the projector allow it to be mounted with a universal bracket?
• Networkable – Allows management from a central location. (Checking lamp life and other settings)
• Throw – How far does the projector need to be from the image surface. If you are replacing a mounted projector, will the new projector have the same throw?
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DLP verses LCD

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When selecting the correct projector for the classroom or even the office, there is that old question...DLP or LCD? Here are some helpful tips when making that decision.
LCD –
Advantages
• Richer color dynamics for better results in rooms with ample ambient light
• Draw less power
• Throw less heat
• No color filter wheel = No "rainbow effect"
• Slightly quieter Seemingly sharper image on data
• original technology
Disadvantages
• usually requires filters which should be cleaned according to manufactures requirements (usually 100 to 300 hours)
• More visible pixels
• Some screen door effect on certain video images
• Physically larger - Even for the same number of lumens
• Poorer contrast
• Blacks come out lighter gray than DLP projectors

DLP –
Advantages
• Smoother video
• Smaller box
• Pixels far less visible, (although normally not an issue for business use)
• More “filmlike” on DVD and HDTV
• Generate "blacker" blacks
• Higher contrast
• Filter- Free
• Great for multimedia
Disadvantages
• Rainbow effect bothers some
• More moving parts (color filter wheel)
• Color filter wheel often produces soft but audible whine
• Poorer reds and yellows at full power
• Color saturation
• Need more lumens than LCD, for rich colors, when dealing with ambient light
The final judgment should be your eyes. Lining up different models and showing the same image and text with the exact settings should be the final test. Also use the following web site to run tests with each projector.
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Mounting Tips

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• Depending on the room size and ceiling style, mounting a projector can run about $1500. This usually covers labor, hardware, cables, and electrical.
  
• Always request the installer to use universal brackets with security bolts. Universal brackets cost about the same as brackets made for your projector, but will wo
  

When planning for mounting a projector consider the following

• When planning the location of the projector on the ceiling, estimate about 10
  feet from projected surface- make sure this area is free from ceiling fans, air
  vents, and other items that could interfere with proper projector operation.
• Location of projected surface should be free from side and overhead lighting
• Location of power and network drops should be located near
  the presentation station
• Get input form the person who will be using the equipment the most

Think about installing speakers from the projector- [click here for suggestion]

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Projector Tips

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• Before you do anything, always read the user's manual that came with your projector.Each projector is unique and the manufactures information is exclusive to you device.
  
• Always keep your lens clean; this will give you the best image quality. Use a soft optical micro-fiber cleaning cloth. These can be purchased at any super store with an optical department.
  
• Make sure that you clean filters on a regular basis. Most projectors will project a reminder based upon usage hours. If your projector is in a dusty environment, you may want to clean the filters more often. If your projector is mounted to the ceiling, be sure it is not in direct line of air/heat vents.
  
• If the projector is mounted, one again make sure that it it gets proper air circulation. Avoid mounting your projector in an enclosure. Remember that excessive heat can greatly shorten your lamp life.
  
• To extend your projector’s lamp life, allow your projector to cool down completely before turning off, unplugging, and moving.
  
• If the projector is on a cart, and is mobile, try to fasten it with a lock, tie downs, or a Velcro strap. This can deter thievery and also help secure the projector while it is mobile.

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