CITIZEN electronics developed high power white LED package by plane

CITIZEN electronics developed by plane package of high power white light emitting diode (LED), and exhibited in March 2008 4 ~ 7 day in Tokyo International Convention and Exhibition Center held that "street decoration circulation revival" exhibition special exhibition "LED Next Stage". The company had previously developed, sales of high power white LED for lighting products. The original product uses the light emitting part for the long and thin package, this time in order to be more easily equipped with the spherical illumination product, uses the luminescent part to be round or approximately square plane package (Figure 1).

Figure 1: development oriented spherical lighting

The company's white LED uses a blue LED chip and yellow phosphor material. The white LED uses the blue LED chip and phosphor "the same as the original product, but the use of a spherical illumination lens is easy to focus on the structure" (commentator). Newly developed products include 3 series. For standard sized spherical lighting products are: 10W class "CL-L230 series", 16W class "CL-L220 series" (Figure 2, 3). In addition, there are smaller spherical lighting products, "CL-L190 series", a total of 3 Series (Figure 4). Dimensions, CL-L230 series is 23mm * 17.5mm * 1.4mm, CL-L220 series is 28mm * 17.5mm * 1.4mm, CL-L190 series is 20mm * 13mm * 4mm.

Figure 2: "CL-L230 series"

Figure 3: "CL-L220 series"

The series are equipped with a variety of different color temperature products. CL-L230 series, CL-L220 series is equipped with 5000K and 2900K two products. CL-L190 series is equipped with 2900K ~ 6300K 5 kinds of products. For example, the CL-L230 series of 5000K products, power input 10.6W luminous efficiency is 69lm/W, the flux is 700lm; the CL-L220 series of 5000K products, power input 16.9W luminous efficiency is 69lm/W, the flux is 1150lm; the CL-L190 series of 5000K products, power input 5.6W, 72lm/W luminous efficiency, luminous flux 408lm.

Figure 4: "CL-L190 series"

The CL-L230 series is equipped with a blue LED chip for 45, CL-L220 series of 72, CL-L190 series for the 24. CL-L230 series is likely to be mass production, CL-L190 series and CL-L220 series will be available in May 2008 samples, scheduled before the end of 08 mass production.

Source: Nikkei BP