Differences Between ALR and CLR Screens

ALR (Ambient Light Rejection) screens and CLR (Ceiling Light Rejecting) screens are both designed to address the challenges of viewing content in environments with high levels of ambient light. However, there are some key differences between the two:

Purpose: ALR screens are primarily designed to reject ambient light from all directions, including light coming from the sides and above the screen. Their goal is to enhance image quality and maintain contrast in well-lit environments. CLR screens, on the other hand, are specifically designed to reject light coming from the ceiling. They are often used in setups where the projector is mounted on the ceiling and there is a significant amount of light coming from above.

Light Rejection Method: ALR screens typically incorporate optical coatings or materials that selectively reflect or absorb ambient light, minimizing its impact on the displayed content. They work by reducing glare and enhancing contrast. CLR screens often use a combination of optical technologies, such as angular reflective technology, to selectively reflect light away from the viewer. This helps to mitigate the impact of ceiling light and maintain image quality.

Viewing Angle: ALR screens are designed to maintain image quality and contrast over a wide viewing angle. This means that viewers can experience consistent image quality even when viewing the screen from different positions within the viewing area. CLR screens, on the other hand, may have more limited viewing angles due to their specific design to reject light from the ceiling. Viewing the screen from extreme angles may result in a decrease in image quality.

Application: ALR screens are commonly used in a variety of settings, including home theaters, classrooms, boardrooms, and outdoor venues, where ambient light can impact the viewing experience. They are versatile and can be paired with different display technologies such as projectors or televisions. CLR screens are primarily used in setups where the projector is mounted on the ceiling and there is a need to reject light coming from above.

It's important to note that specific brands and manufacturers (ex. SCREENPRO-T prism) may have its own proprietary technologies and variations of ALR and CLR screens, so the features and performance can vary.