LED TECHNOLOGIES DEPARTMENT

Chip-on-board

Research goal: development of integrated lighting sources – Chip-On-Board’s in different forms and power classes.

Contrary to usual individually packaged lighting diodes (LED’s), Chip-On-Board modules contain multiples of chips that would otherwise build one LED. These are mounted on a single metal or ceramics carrier. 

Chip-On-Board’s combine high light output with an optimal price per lumen & enable very easy mounting. When using discrete individual LED emitters, the manufacturer requires an SMD line, which too adds complexity and cost. Contrary to this the use of COB’s requires only manual dexterity and simple companies can produce lighting devices without large sums of investment being tied up in SMD equipment. To ease assembly Optogan (companu which held this research) in cooperation with the leading electromechanical companies Tyco and Molex has developed a number of connectors, which provide secure electrical & mechanical connection when using such COB’s. 

As far as we can see, Optogan has been the first company in the world that has offered its customers a scalable COB; X10. Both its geometrical size and analogue it’s power consumption can easily be adapted to the requirements of its particular user.   

X10 is produced as on a bulk scale which can be used as a single unit or easily separated into smaller, lower powered blocks.

X10’sbulk block can consume up to 500W, resulting in a flux of slightly exceeding 50000 lumen. A single X10 segment consumes 10W and emits a minimum of 1000Lm. Our customers can purchase either predefined geometries or bulk blocks and separate them themselves.

 

This innovative solution suggests to the customers maximal flexibility in production of lighting fixtures & is much cheaper in production as classical COB, based on cupper or aluminum substrates.  

Apart from COB’s which emitting white light, Optogan also provides its customers with raw COB’s, these being without a phosphor conversion. Such COB’s emits blue light and can be used in applications utilizing remote phosphors. Despite lower efficiency such solutions allow for a better quality of light in terms of homogeneity from the viewing point as well as an increased color point stability, which is very important for example in the illumination of show cases.