HELENA fresnel
FLORENCE-1R family
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FLORENCE-3R accessories
ZENIA

HELENA — Shining Bright Like a Diamond

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Product Examples

 

The New Fresnel lens from Ledil – HELENA - is an excellent example of our precision engineering. The tool has been engineered to exacting standards using Diamond turning methods. This production method produces some of the highest quality optics in the world and allows Ledil to manufacture to an accuracy of a hundredth of a millimetre, thus giving great control of the light - turning light into lighting the LEDiL way. 
Helena is designed to work with Luxeon K series LEDs and it produces 22˚ beam angle. The Helena has been designed to sit very close to light source this allowing compact fixture design.
There are 2 variants - the HELENA-A is designed for a maximum intensity peak, giving good on axis candela values. HELENA-B is manufactured with some pillow texturing on the top side of the lense to widen and smooth the light fractionally.
 
 
FEATURES and BENEFITS
Precise diamond turned moulded surfaces replicate designed optical shape with exact precision
• Narrow viewing angle with good efficiency
Fresnel type folded prism optical design allows flat design of the fixture
 
TECHNICAL SPECIFICATIONS
C12622_HELENA-A
Diameter: 72,8 mm
Height: 11 mm
Mould surfaces are diamond turned to replicate original designed geometry to the highest precision standards
A-version has clear surfaces and efficient fresnel-design for maximum intensity peak when color shifting is not an issue
Precision-moulded from optical grade PMMA – UL94 HB rated material with operating rating -40°C to +100°C
Typical applications: Stage lighting, indoor architectural and other applications where maximum intensity of the light source is critical.
 
C13254_HELENA-B
Diameter: 72,8 mm
Height: 11 mm
Pillow surfaced front face for uniform color rendition
Precision-moulded from optical grade PMMA – UL94 HB rated material with operating rating -40°C to +100°C
Typical applications: Indoor architectural, flat luminaire designs, stage lighting, retail lighting
Press Release PDF: 

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2013 Christmas Contest

It's that time of Year again! Send us an image and short description of how You have used or abused our optics. Three best submissions will receive our very special exclusive X-mas surprise gift. Your idea needs to reach Santa by December 24th to be in! All participants will receive a seasonal limited edition LENA-X-Mas reflector.

Send your submission HERE!

XMAS 2013