SIO3 Silicone Lenses for HB and COB LEDs

SIO3 Silicone Lenses for HB and COB LEDs

The world’s first range of lenses made of silicone, optimized for most popular COB LEDs.
Research, analysis, know-how: NOT conventional technologies, BUT ADVANCED TECHNOLOGY.

Optimized for most popular HB LEDs and COB LEDs, SIO3 Silicone Lenses are free form lenses, engineered by implementing new optical techniques and manufactured by using the cold injection-moulding process. The LEDs of latest generation – High Brightness LEDs and COB LEDs – achieve very high temperatures which could put strain on the conventional polymers such as PMMI, PMMA and PC. Silicone is high temperature resistant, from -40°C up to peaks of 200°C, very low yellowing, micro-crack resistant under harsh environmental conditions.
Thanks to the most cutting-edge engineering and the advanced technologies developed by Khatod R&D Team, the typical properties of Silicone have not only been totally transferred but even boosted in the realization process of the SIO3 Silicone Lenses. Designed for street lighting applications, are perfect for any application in wide area lighting, outdoor and indoor.

SIO3 Silicone Lenses: a major breakthrough in the world of Solid State Lighting
New optical techniques, elaborate geometries and totally new manufacturing processes customized by Khatod have been developed and implemented in order to make these innovative lenses able to achieve a superior optical refractive index, while delivering an optical performance perfectly complying with the optical efficiency requirements posed by the HB and COB LEDs of latest generation.
SIO3 Silicone Lenses, a totally new design by Khatod, are protected by Registered Patent in Italy and scheduled patent extensions.
SIO3 Silicone Lenses are the winners of many international awards in the category dedicated to the most advanced innovations in LED Lighting.

Product Description

SIO3 Silicone Lenses are excellent optical solutions able to serve a wide range of LED Lighting applications. Globally acknowledged as unique solutions enabling the boldest SSL technologies, their outstanding characteristics enable to go beyond the limitations posed by other materials still in common use in LED Lighting. High flexibility, excellent transparency, high lighting efficiency, are just some of the outstanding features of these unique lenses.


Designed for Street Lighting, SIO3 SILICONE LENSES cover an extremely broad group of applications,
allow to easily switch from conventional lighting to LED lighting, maximize the lighting efficiency up to the highest levels. The wide gamut of models enables the realization of many and various lighting designs, from typical street and tunnel lighting applications (poles, headpoles, lamps, etc.) to any application in Wide Area Lighting, Outdoor and Indoor. They are perfect in Parking Areas, Petrol & Service Stations, Sport facilities and yards lighting, Rail Stations, Airports, Ports, Waterways, Urban lighting (squares, parks, gardens, pathways, canopies, etc.), Outlets & Shop Centers, Offices, Elevators, Shop Windows, Hospital & Hospitality, Industrial and Professional Lights, etc.

Product specifications

Optic type:
Free form lenses, optimized for most popular HB and COB LEDs of latest generation.
Sio3 Lens series works with COB LEDs having 19mm to 33mm LES.
Boast high optical engineering and exclusive cold injection-moulding process, specially customized by Khatod in the crucial phase of silicone processing. Designed for Street Light applications, comply with IESNA Standards: Type I – Type II – Type III – Type IV – Type V, Short or Medium light distribution depending on the LED used; comply with European ME3a requirements. The typical properties of SIO3 Silicone Lenses make them excellent for any applications in Wide Area Lighting, Outdoor and Indoor.

Beam Angles:
3 rotosymmetric, 4 asymmetric, 2 axially symmetric in x, y (1 rectangular spot and 1 square spot).

Size: 111 mm (w) x 100 mm (l)
Height: from 30.68 mm to 42.93 mm

Optic Features:
Excellent transparency. Ultra-Clear, ideal for applications requiring high optical clarity with long term durability, perfect alternation of flexibility and rigidity in the same part. Integrate complex geometries and high precision microstructures. High fidelity to the optical design.
High optical efficiency; No birefringence. Lighting efficiency up to 92%.
High refractive index; Low absorption of light.
High temperature resistant; High flexibility at low temperatures; UV-resistant: no yellowing effect.
High resistance to chemicals.
Micro-crack resistant under harsh environmental conditions.
Immersion-proof; Explosion-proof; Impact-proof. Total reliability and safety. Designed to comply with the highest IP (IP65) and IK (IK10) standards. Perfectly combine impact resistance and dimensional flexibility.

Mechanical Features:
Mould and Tooling design and realization, 100% Khatod. Tight tolerances and extreme precision.
Cold injection-moulding process customized by Khatod: Totally automated process. Ensure high repeatability and reproducibility in the manufacturing process.
Excellent mechanical properties.
No vibration problems.
Easy fitting to different shapes and surfaces.
Easy and immediate fixing to the final application. Easy to assemble in existing lighting systems.
For extreme applications, an optional aluminium ring holder enabling an even more robust fastening is available. Strong, heat resistant, cast aluminum, will not bend or warp. Great impact resistance.

SIO3 Silicone Lenses preserve and enhance the typical characteristics of silicone.

SIO3 hydrophobic property (immersion-proof) makes these lenses particularly fitting for damp and wet environments. Indoor pools are a typical application.
– No need for extra protection such as glass or gasket for IP
– Excellent in any application in Wide Area Lighting, Outdoor and Indoor

Their explosion-proof and shock-proof properties make SIO3 safe and reliable in hazardous environments such as mines for instance.
– SIO3 silicone lenses do not shatter in the event of accidental impact, flashover or vandalism.
– They substantially improve safety in the places and sites where people live and work.

SIO3 lenses feature high temperatures resistance, strong heat aging resistance and high chemical resistance, ultraviolet (UV) stability, purity, clarity, stable mechanical properties at a temperature range from –40°C to 150°C; withstand temperature peaks up to 200°C. Preserve their insulating properties intact in extreme thermal variations.
– Considerably reduce the yellowing effect.
– Help disperse the heat from the LEDs by dispersing it evenly all over the lens surface.

The design concept of SIO3 Silicone Lenses allows for the interchangeability of the different models on the same LED source.

Khatod imagined, designed and engineered this project by realizing the optical and mechanical design and the mould fabrication. Careful analysis and numerous laboratory tests have been carried out unstintingly. Nothing has been left out. All these elements blended with Khatod’s mastery of project development, gained over years made from work, know-how and passion, have been key elements to the success of a unique product.


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