Khatod offers Kristall total internal reflection lenses for COB LEDs

June 10, 2014
Not long ago Khatod developed some of the most successful optical systems for COB (chip on board) LEDs, by providing users and designers of lighting with excellent reflectors able to optimize the high luminous flux delivered by the COB LED modules. However, the realization of an optimum design for solid-state lighting needs both reflectors and lenses. The right choice depends on your final application, and requires an understanding of what it takes to achieve the highest in performance.

Khatod's latest optical solutions for COB LEDs come from KRISTALL, the newest first-of-its-kind range of optics in the form of total internal reflection (TIR) Lenses, engineered in various dimensions up to 110,00 mm extra large diameter, and able to maximize the high-intensity beams produced by the COB LEDs.

KRISTALL lenses from Khatod are TIR lenses available in 78.00mm, 90.00mm and 110.00mm in diameter, fit for the most popular COB LEDs. They feature ultra clear PC, excellent performance, and can be directly mounted on the PCB.

KRISTALL lenses are TIR lenses fabricated of optical grade PC. The name recalls the high purity and transparency of these unique lenses, achieved thanks to the quality materials used and the special injection-moulding technology implemented by Khatod in the production process. Able to envelop the chip-on-board LEDs, optimize and guide virtually all of the radiated light from the LED source toward the target by preserving and enhancing the brightness of the luminous flux from the COB LED while ensuring high uniformity in light distribution and providing high optical efficiency over 85%. Deliver an extensive range of beams, from narrow to medium and wide angles.

KRISTALL lenses are provided with special adaptors customized for the individual models of the major high brightness COB LEDs. The adaptors allow easy and immediate mounting onto the COB LED. No soldering or gluing is required. You will assemble KRISTALL onto the COB LED by a simple twist & lock system.
The concept is very simple:
a) fasten the adaptor onto the PCB with two screws;
b) place KRISTALL onto the adaptor by inserting the pins into the housing slots; twist & lock KRISTALL by a simple rotation.
Also, the adaptors allow for the interchangeability of KRISTALL models on the same LED source.
KRISTALL lenses are in compliance with Zhaga Standards and are fit for most applications where COB LEDs are required.

Features and typical applications:
- Made of specific optical grade PC, boast an excellent optical efficiency.
- Specific for HB COB LEDs.
- High performance with warm white LEDs.
- Yellow ring effect totally eliminated.
- Maximize the luminous flux while achieving a lighting efficiency over 85%.
- No vibration problems.
- Easy fixing to the COB LEDs: fix the adaptor onto the PCB, then twist & lock KRISTALL onto the adaptor.
- The adaptors allow for interchangeability of KRISTALL models on the same LED source.
- UV protected and guaranteed for outdoor applications.
- Comply with Zhaga Standards.
- Comply with UL94 Specifications.
- Any applications in general lighting and wide area lighting indoor/outdoor: industrial; commercial, retails, shops, stage, halls & entrances, architectural, entertainment, etc.

The full range of KRISTALL lenses can be viewed online at:


Khatod Optoelectronic S.r.l.
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