How to determine the position of the projector for a given screen size

1.Select your screen size.

2.Refer to the table and find the closest match to your screen size in the left columns labelled '4:3 Screen Diagonal'. Using this value, look across this row to the right to find the corresponding average distance from screen value in the column labelled 'Average'. This is the projection distance.

3.On that same row, look across to the right column and make note of the vertical Offset value. This will determine the final vertical offset placement of the projector in relation to the edge of the screen.

4.The recommended position for the projector is aligned perpendicular to the horizontal centre of the screen, at the distance from the screen determined in step 2

above, and offset by the value determined in step 3 above.

For example, if you are using a 120 inch screen, the average projection distance is 5018 mm and with a vertical offset of 63 mm.

If you place the projector in a different position (to that recommended), you will have to tilt it down or up to center the image on the screen. In these situations, some image distortion will occur. Use the Keystone function to correct the distortion. See "Correcting keystone" on page 25 for details.

How to determine the recommended screen size for a given distance

This method can be used for situations where you have purchased this projector and would like to know what screen size will fit in your room.

The maximum screen size is limited by the physical space available in your room.

1.Measure the distance between the projector and where you want to position the screen. This is the projection distance.

2.Refer to the table and find the closest match to your measurement in the average distance from screen column labelled 'Average'. Check that your measured distance is between the min and max distances listed on either side of the average distance value.

3.Using this value, look across that row to the left to find the corresponding screen diagonal listed in that row. That is the projected image size of the projector at that projection distance.

4.On that same row, look across to the right column and make note of the vertical Offset value. This will determine the final placement of the screen in relation to the

horizontal plane of the projector.

For example, if your measured projection distance was 4.8m (4800mm), the closest match in the Average column is 4939mm. Looking across this row shows that a 3000mm (3m) screen is required. If you can only obtain imperial sized screens, the listed screen sizes on either side of the 3m screen are the 9' and 10' screen.

Checking the min and max projection distance values for these screen sizes indicates that the 4.8m measured projection distance will fit the 3m and 10' screens. The projector can be adjusted (using the zoom control) to display on these different screen sizes at that projection distance. Be aware that these different screens have different vertical offset values.

Positioning your projector

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BenQ CP220 user manual Positioning your projector
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CP220 specifications

The BenQ CP220 is a robust and reliable projector designed for educational and business environments. This model is renowned for its exceptional image quality, ensuring that presentations are both clear and engaging. Equipped with DLP (Digital Light Processing) technology, the CP220 utilizes a high-brightness lamp that provides vivid colors and sharp details. With a brightness rating of 2500 ANSI lumens, it excels in various lighting conditions, making it suitable for both small and large venues.

One of the standout features of the BenQ CP220 is its native XGA resolution of 1024x768 pixels, which allows for detailed display of text and images. This resolution is particularly beneficial for presenting high-definition content, ensuring that every detail is captured and displayed accurately. Additionally, the projector supports a range of resolutions and aspect ratios, making it versatile for differing media formats.

The CP220 is designed with user convenience in mind. It features quick and easy setup options, including automatic keystone correction, which ensures that images are perfectly aligned, regardless of the projector's angle. This feature is particularly useful in dynamic environments where quick adjustments are often needed. Furthermore, the projector offers a multitude of connectivity options, including VGA, USB, and HDMI ports, allowing users to connect a variety of devices seamlessly.

In terms of durability and maintenance, the BenQ CP220 boasts a long lamp life of up to 4,500 hours in economy mode. This means less frequent lamp replacements and lower overall operating costs, which is an important consideration for educational institutions and businesses looking to maximize their investments. The projector's efficient cooling system also helps to ensure longer operational periods without overheating.

Overall, the BenQ CP220 stands out for its combination of performance, versatility, and user-friendly features. Its high brightness, excellent resolution, and ease of use make it an ideal choice for any setting that demands reliable and high-quality projector performance. Whether for classroom instruction, corporate presentations, or multimedia displays, the CP220 is a dependable tool that enhances communication and engagement. With its advanced technologies and thoughtful design, the BenQ CP220 continues to be a favored choice among educators and professionals alike.
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