An Introduction to BREWSTER Diffusion Panels

Precision Light Diffusion for Professional Applications

KUPO BREWSTER Diffusion Panels are engineered to modify the high-intensity, discrete output characteristic of modern LED luminaires, such as the ARRI SkyPanel. These panels are designed to transform the luminous energy of individual LEDs into a uniform, non-specular field of illumination. Through the diffusion of the light beam across the full aperture, BREWSTER panels produce a homogeneous, glare-free quality of light. This effect provides flattering illumination for subjects, mitigates distracting specular reflections from polished surfaces, and reduces visual discomfort for viewers. The panels are suitable for a range of demanding applications, including feature film production, museum exhibition, and high-end retail displays, enabling precise control over the visual aesthetic.

• Optical-Grade Acrylic: Constructed from optical-grade acrylic featuring a micro-textured surface and a polished reverse side, the design maximizes diffusion while preserving the luminaire's intensity and colorimetric accuracy.

• Homogeneous Beam: The panels generate a soft, even field of light that provides comprehensive and consistent coverage for subjects and objects.

• Glare and Specularity Reduction: Ideal for applications involving reflective materials, such as metallic surfaces or vehicles, and for lighting human subjects.

Graduated Diffusion Levels for Versatile Application

Different lighting scenarios require a specific balance between diffusion quality and light transmission. Consequently, BREWSTER Panels are offered in a graduated range of diffusion strengths. This selection provides lighting professionals with a versatile solution for a wide array of creative and technical requirements. The available strengths allow for effects ranging from the subtle softening of LED sources for product photography to the creation of highly diffused atmospheric conditions for fashion photography and gallery installations, thereby enabling precise control over the character of the illumination.

• Multiple Strengths: A range of finishes, from light matte to heavy diffusion, is available to achieve the desired aesthetic and technical outcome.

• Optimized Light Transmission: The proprietary diffusion technology is engineered to minimize loss of luminous flux, allowing for precise adjustment of contrast without significant sacrifice of essential luminance levels.

• Enhanced Creative Control: The panels provide enhanced control over light quality, potentially reducing the need for additional luminaires or light-modifying accessories, which can lead to efficiencies in time and equipment.

Engineered for Durability in Demanding Environments

LED luminaires can generate significant heat over extended operational periods. Whereas conventional polymer materials may be susceptible to thermal deformation, discoloration, or crazing, BREWSTER Panels are designed for longevity and stability. Formulated with a proprietary high-temperature-resistant acrylic, they are engineered to maintain their structural and optical integrity in demanding professional studio and location environments.

• High Thermal Resistance: Demonstrates high resistance to temperatures exceeding 100°C at the lens plane, typical of luminaires operating at maximum output, without warping or discoloration.

• Military Specification Compliance: Complies with MIL-M-13508C standards for adhesion, humidity, and abrasion, ensuring the diffusion texture is resistant to delamination and degradation from repeated cleaning and handling.

• Structural Rigidity for Transport: The rigid substrate resists warping within transport cases, ensuring the panel remains flat to provide consistent and predictable photometric performance across numerous uses.

Standardized and Customizable Fabrication Options

Stock BREWSTER panels are precision-cut to integrate seamlessly with the accessory slots of ARRI SkyPanel S30, S60, and S120 fixtures, requiring no modification. For specialized applications, the company's in-house fabrication facilities enable the creation of bespoke solutions.

• Standardized Dimensions: Designed for compatibility with leading industry-standard professional LED luminaires.

• Custom Fabrication: Panels can be milled to custom dimensions and shapes, including rounded corners or specific drill patterns, to accommodate third-party equipment, architectural features, or specialized lighting apparatus.

• Bespoke Geometries: For designs requiring non-standard shapes such as large-scale diffusion walls, anamorphic strips, or circular apertures, specifications can be submitted for fabrication. Panels are fabricated to precise tolerances and shipped ready for mounting.

BREWSTER Diffusion Panels provide lighting professionals with a durable, thermally stable, and versatile solution for achieving a high degree of visual cohesion and aesthetic quality in LED lighting applications.

ARRI® and SkyPanel® are registered trademarks of Arnold & Richter Cine Technik GmbH & Co. Betriebs KG. KUPO Dichroic is not affiliated with ARRI.