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Optoelectronics/Displays  

LED concept provides CRI above 90

Posted: 18 May 2011     Print Version  Bookmark and Share

Keywords:led light  led lamp  lighting 

OSRAM Opto Semiconductors rolls the 'Brilliant-Mix' concept that is an intelligent colour mix based on OSLON SSL LEDs in EQ-White and Amber covering a broad white spectrum from 2426.85°C to 3726.85°C.

The LED concept offers warm white light with a high luminous efficacy (110lm/W) and a colour rendering index (CRI) of more than 90 targeting high-quality lighting solutions for residential and commercial premises such as shops and offices.

The high quality of the light is based on the combination of a pleasant warm tone and very high colour rendering properties. The high CRI ensures that colours and skin tones appear in artificial light as natural as they do in normal daylight. Test colours R9 (saturated red) and R13 (skin colours) are crucial for the natural rendering of red and skin tones. With CRIs of 78 and 98 respectively they have much higher values than most conventional light sources. The typical value for the general colour rendering index Ra (averaged sum of test colours R1 to R8) is 92 at a colour temperature of 2426.85°C. The luminous efficacy is also exceptionally high at more than 110lm/W. For a comparable colour temperature and comparable CRI that is 30 per cent higher than warm white LEDs that produce white light using the principle of phosphor conversion. Even in a retrofit lamp system this concept can achieve 100lm/W at system level.

OSLON SSL LEDs in EQ-White and Amber are used in the Brilliant Mix concept. Measuring just 3x3mm, these LEDs are among the smallest in the 1W class and can be closely clustered. This makes colour mixing easier and also improves the optical design at system level.

The Brilliant Mix concept has already been implemented in the Parathom Pro Classic A 80 LED lamp and in the PrevaLED system from OSRAM. These demonstrate the high quality of light that can now be achieved with LEDs.





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