วันจันทร์ที่ 24 พฤศจิกายน พ.ศ. 2551

How To Choose A Projector

How To Choose A Projector
By Jakob Culver

Good presentations make the foundation of the successful business deals. So while making presentations make sure that you have an easy access to a good projector which suits your requirement as this is going to at as a catalyst for a business deal to happen! The picking of projectors is mainly dependent on the type of work or the kind of business that you have. As for an advertising firm presentations are very frequent so they make doubly sure that they procure a good projector!

The other factor that determines the selection of a projector is the dimension of the room or the conference hall where the presentation is scheduled. As the clarity and readability of the data projected varies from the projector which is designed to function in small room as compared to large room , so presentations for larger areas and for a great number of people should be made through more sophisticated projectors.

Portability of the projector is the another issue, if you usually travel from one place to another for their business presentations then make sure that you invest in a good quality portable projector that is easily transported and provides an easy set up. It is mandatory that it can be set up instantly as who would be carrying a throng of technical people when doing mobile presentations. A projector that easily connects with a personal or portable computer will be ideal to make your presentations simple but sophisticated.

Norms suggest that a portable projector with a minimum brightness capacity of at least 800 lumens is fine to handle the presentations. In contrast to this larger projectors must have a brightness capacity of at least two thousand lumens to make the presentation clear even to those who are seated at the back of the room. A projector must have at least a minimum of 1500 lumens to be able to project effectively in a room where plenty of light comes in as when there are no blinds or curtains

Once you have decided on the type of the projector that you will be using, then make sure that you use projectors in a dark room but if it cannot be avoided, always position the projector at an area where there is less light. It is also important to take note of the resolution of your projector as this signifies the amount of pixels it can display. . Projectors can be easily installed but it is best to consult technical people for setting up the projector especially if they will be mounted to the ceiling. Make sure your projector's efficiency will last long by using alcohol or a special cleaning solution for the projector lens.

So go ahead and make a appropriate selection from a wide variety of projectors that are available in the market and just to tell you that vendor will be one happy person to give a trial presentation, so make sure that you dont miss on that as it will throw more light on the projector features.

Jakob Culver is founder of the website http://thecomputersnet.com and has a solid background in computers and electronics.To find out more information about this topic or AV equipment visit:http://thecomputersnet.com

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วันอาทิตย์ที่ 23 พฤศจิกายน พ.ศ. 2551

Compare LCD Projectors

Compare LCD Projectors
By Ken Marlborough

LCD (Liquid Crystal Display) projectors are devices used for displaying presentations or videos in an enlarged size. They are the modern replacements for slide projectors and overhead projects which were popular earlier.

LCD projectors are available in several variants with differing specifications. Choosing the right projector is as simple as knowing what it will be used for. The two parameters needed to compare an LCD projector are - cost and specifications. Knowing what is needed and how much you will need to use the various features / specifications of an LCD projector are going to be will help one compare the projectors with a better perspective. For this reason, it is important to know the basics of projectors before comparing them.

Aspect Ratio: It refers to the width vs. the height of the projected image. UXGA, VGA, XGA, and SVGA resolution all have a 4:3 aspect ratio.

Brightness: A projector's brightness is measured in lumens. The more light in the room where the projector will be used, the more bright the projector should be.

Contrast Ratio: Is the ratio between the darkest and brightest areas of the projected image. Medium Contrast ratio projectors can be found with a ratio of 500:1 to 1200:1.

Data Signal Ports: These ports on the projector should be compatible with whatever image source they will be paired with.

Keystone Correction: This is the ability to correct the image distortion that is created when a projector is placed at anything other than a 90 degree angle to the screen.

Native resolution: This resolution for a digital projector is the actual number of physical pixels on the projector's image chip.

Projection screens: These screens come in various fabrics and sizes. While it's possible to project the images on a blank wall, the best image quality will be achieved by projecting the images on a good screen.

Video Format Capability: A digital projector's video format capability determines which video format data it can accept. Most projectors will offer all three: PAL, NTSC, and SECAM.

A wide range of desired projectors can be found by giving exact specifications on various website over the internet. Once these basic features of projectors are compared and the best suited LCD projector identified, one can go ahead and compare the prices of the required projector.

LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.

Article Source: http://EzineArticles.com/?expert=KenMarlborough
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วันเสาร์ที่ 22 พฤศจิกายน พ.ศ. 2551

Video Projector Rentals

Video Projector Rentals
By Marcus Peterson

A video projector is a device that projects a video or computer image onto a screen. The commonly used inputs are video cassette players, CD and DVD players and PowerPoint presentations from computers. Some computers have CD as well as DVD drives which support these discs. Some projectors dont have VGA connectors, which take inputs from a computer.

A video projector employs one of three technologies: CRT, LCD and DLP. CRT projectors are just like television, i.e. they employ cathode ray tubes. The limitations of CRT video projectors are the heavy size and the requirement of absolute darkness for clarity of the picture. LCD projectors employ a special chip so that the advantage is that the projector is very compact. Besides, it has excellent contrast and brightness. The LCD projector employs individual pixels, which produces high resolution. The limitation of a LCD is it produces a screen door effect. Also the repair of one would result in a dark spot on the screen.

DLP technology employs a Digital Micromirror Device, instead of a chip. DLP projectors are highly suitable for viewing movies and also other multimedia presentations. The advantages of DLP projector include color accuracy and no screen door effect.

LCD and DLP video projectors are the favorites and therefore most of the inventory of the rental companies are the above mentioned ones. The rates of these projectors start at $100 and are dependent upon factors such as the resolution and weight. The rental companies provide support throughout the whole day and night. This includes online or phone booking, shipment, installation, and operation support.

Hotels, resorts, convention centers and conference halls enter into contract with rental companies to provide these services. The rental companies have chains of shops across a particular region or nationwide networks. The directories of these service providers can be obtained online, which directs them to the individual websites.

Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.

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