Frequently Asked Questions
Your Questions Answered
Can your projectors be installed at 360 degrees?

Many SMX professional laser projector models support 360-degree installation. This is useful for ceiling, vertical, angled, stage, mapping and creative display applications. Please confirm the installation capability of the specific model before final design.

How do I choose the correct projector lens?

Please provide the screen width, screen height, projection distance and projector installation position. Based on this information, the appropriate short-throw, standard-throw or long-throw lens can be selected.

What is lens shift?

Lens shift moves the projected image vertically or horizontally without physically tilting the projector. It provides greater installation flexibility and can help maintain better image geometry compared with relying only on keystone correction.

How do I calculate projector installation distance?

Projection distance can be estimated using the formula: projection distance = image width × throw ratio. For projectors with zoom lenses, the minimum and maximum throw ratios create an installation range. For professional projects, exact calculations should use the selected lens specifications.

What is projector throw ratio?

Throw ratio is the relationship between projection distance and image width. For example, a 1.0:1 throw ratio means the projector is installed approximately the same distance from the screen as the image width. Throw ratio is one of the most important parameters when selecting a projector and lens.

Should I choose a laser projector or a lamp projector?

Laser projectors are generally better suited to long-term professional installation because they offer longer light-source life, faster startup and lower routine maintenance. Lamp projectors can still be suitable for cost-sensitive business and education applications.

What is the difference between 3LCD and DLP projectors?

3LCD projectors use three LCD panels to produce red, green and blue image information simultaneously. They are widely used in business, education, simulation and professional AV applications. DLP uses a different imaging architecture. The right technology depends on the application, image requirements and projector model.

Should I choose WUXGA or 4K resolution?

WUXGA 1920×1200 is suitable for professional presentations, simulation, education and many large-screen applications. Native 4K provides more image detail for high-resolution content. The best choice depends on viewing distance, screen size, content source and budget.

What is the difference between ANSI lumens and lumens?

ANSI lumens are measured using a standardized method and are generally more useful for comparing projector brightness. When evaluating professional projectors, it is important to confirm whether the quoted brightness is ANSI lumens or another lumen measurement.

How many lumens do I need for my projector?

The required brightness depends on screen size, ambient light, projection distance and application. Small meeting rooms may need 3,000–5,000 lumens, while large venues, projection mapping and immersive installations may require 10,000–25,000 lumens or more. For project applications, we recommend providing your screen size and room conditions for proper evaluation.

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