High Temperature Resistant Borosilicate Fresnel Lens for Stage & Studio LED Lighting

1. Core Material & Composition:

• Primary Material: Precision optical Borosilicate Glass (e.g., Borofloat, Pyrex-type).

• Key Feature: Engineered with a Fresnel lens design—a compact, thin lens featuring concentric grooved rings that replicate the light-bending power of a much thicker conventional lens.

2. Defining Physical Properties:

• Exceptional High-Temperature Resistance: Withstands intense, prolonged heat output from high-power LED arrays and COB LEDs without degrading, warping, or discoloring.

• Low Thermal Expansion: Borosilicate glass has a very low coefficient of thermal expansion, ensuring dimensional stability under rapid temperature changes (thermal shock) common in lighting cycles.

• High Optical Clarity & Consistency: Provides excellent light transmission with minimal distortion, critical for precise beam control.

• Lightweight & Durable: The Fresnel design offers powerful optical performance in a thinner, lighter, and more robust form factor compared to thick plano-convex lenses.

3. Primary Optical & Functional Role:

• Beam Shaping & Control: The core function is to collect and collimate (make parallel) or softly focus light from an LED source, creating a defined, controllable beam.

• Adjustable Beam Angle: Enables the creation of a variable "spot-to-flood" beam, essential for theatrical and studio lighting effects.

• Heat Management: Acts as a protective thermal barrier, allowing heat to dissipate effectively while protecting other downstream optical elements.

• Efficiency: Maximizes light output efficiency by effectively collecting and directing lumens from the LED source.

4. Target Applications & Industries:

• Professional Stage Lighting: Moving head lights, profile spots, Fresnel spotlights, and followspots for concerts, theater, and live events.

• Television & Film Studio Lighting: LED fresnel fixtures used for key, fill, and backlighting due to their soft, adjustable, and controllable quality of light.

• Photography & Video Production: Continuous LED lighting panels and fixtures requiring precise and adjustable illumination.

• Architectural & Event LED Lighting: High-output fixtures where beam shaping and thermal management are critical.