Optic: 20mm Single TIR Lens - Fusion Optix 20XPS Series

Description

The Fusion Optix 20XPS Series is a family of compact 20mm TIR optics designed for use with Cree XP and other compatible 3535-footprint high-power LEDs. Engineered to provide efficient light collection and precise beam control, the 20XPS Series is available in multiple beam distributions, allowing designers to select the appropriate optic for spot, directional and wider-area illumination. Its compact format makes it well suited to LED spotlights, downlights, architectural and display lighting, task lighting, portable lighting and custom LED fixtures where efficient optical control is required.

Like all Fusion Optix products, these optics are tough, impact resistant, RoHS compliant and can withstand higher temperatures than acrylic optics. (Ø20mm) TIR spot lens is designed to modify and focus light outputs from typical mid-power LED packages.

• Dimensions: Ø20mm * 8.5mm
• LED: Cree XP Series, and similar 3535 LED packages
• Circular Beam Distributions (FWHM): 15°, 25°, 30°, 38°, 45°, 60°
• Eliptical Beam Distributions (FWHM): 45° x 10°, 40° x 20°, 60° x 30°, 80° x 10°
• Mounting: Choice of LENs holders
• Material: Optical Grade PMMA (acrylic)
• Applications: Architectural, Landscape, Garden, Machine Vision, Instrumentation
• ROHS Compliant: Yes
• Red List Free: Yes
• Warranty: 5 Years

Technical Documentation

Notes for Table

• Eff.: This is determined by measuring the ratio of the light collected after the Optic output face (excluding scattered light) and dividing this by all the light collected from the LED alone.
• FWHM: Beam angle is typically expressed as the Full Width in degrees at Half Maximum intensity (FWHM); A measure of the width of a distribution defined as the separation of the data points on either side of the peak which have values equal to 50% of the maximum. For intensity distributions this is the angular range at which the intensity falls to half its maximum value.
• Cd/lm: The SI base unit of luminous intensity which is the power emitted by a light source in a particular direction, weighted by the sensitivity of the human eye.
• TIR (Total Internal Reflection) Optic: When light passes from a high refractive-index medium (such as glass) to a low refractive-index medium (such as air) there is a special angle, known as the critical angle, above which light is 100% reflected. Any light rays that fall within the critical-angle undergo total internal reflection. TIR optics use this principle to produce highly efficient optics with a huge variety of beam shapes.

Important Information

20mm TIR Optics The most common size of TIR optic as these produce a range of beam angles from relatively tight to wide. There are also two reflectors within our 20mm range that take the beam even wider â€" therefore, you can design your fixture around this family of optics and select what beam is required as you build.

Full Documentation