flux and efficacy... или, какими должны быть диоды.

[marlboro_]

В данный топик, я предлогаю скидывать новости в индустрии светодиодов.
Все самые последне достижения.

В настоящий момент эстафету рекордных параметров 140 Лм/Вт и 150Лм с чипа на 350мА несет Osram, вырвав её у CREE....
посмотрим на долго ли ?
Естественно это лабоаторные образцы, но как показывает практика разница между лабораторными результатами и производством всего пара лет ) !!!

[marlboro_]

Не долго это тело будет жить на земле ... )))

Итак вчера появился новый рекорд.
161 Лм/Вт на 350мА

Увы картинки пока нет, только анонс.



http://www.semiconductor-today.com/news ... 201108.htm

[light]

Cree молодцы. Дают Осраму "просраться"

[marlboro_]

Cree молодцы. Дают Осраму "просраться"

По сути та-же самая гонка вооружений )
у тебя рекорд = тебя больше финанситует правительство )))

[shura1977]

Во офанаревший бот, даже подпись имеется

[marlboro_]

Что-то мы упустили новый рекорд )

Cree Achieves 186 Lumens per Watt from a High-Power LED

High-performance chip and R&D package combine for record-setting efficacy

DURHAM, N.C., DECEMBER 1, 2009 — Cree, Inc. (Nasdaq: CREE), a leader in LED lighting, announces it has achieved industry-best reported R&D results of 186 lumens per watt for a white power LED.

This result demonstrates Cree’s continued focus on pushing the performance of its LEDs. Cree’s tests confirmed that the LED produced 197 lumens of light output and achieved 186 lumens per watt efficacy at a correlated color temperature of 4577K. The tests were conducted under standard LED test conditions at a drive current of 350mA, at room temperature.

“This result is a testament to the tremendous progress Cree has made this year,” said John Edmond, Cree co-founder and director of advanced optoelectronics. “As energy efficiency becomes increasingly important in addressing our nation’s energy challenges, Cree is doing its best to deliver the most energy-efficient LED technology possible.”

While this level of performance is not yet available in Cree’s production LEDs, Cree continues to offer volume quantities of the industry’s broadest family of 100+ lumen LEDs.

http://www.cree.com/press/press_detail. ... 9701233981

[marlboro_]

http://www.semiconductor-today.com/news ... 040210.htm
200 Лм/Вт побит !!!

Cree breaks 200lm/W efficacy barrier in R&D for white high-power LED
After reporting efficacy of 186 lumens per watt (and 197 lumens output) only in early December, LED chip, lamp and lighting fixture maker Cree Inc of Durham, NC, USA has claimed another luminous efficacy record of 208 lumens per watt for a white power LED. While this level of performance is not yet available in Cree’s production LEDs, the firm says that the R&D result passes a significant milestone within the solid-state lighting industry.

Cree’s tests — conducted under standard LED test conditions at a drive current of 350mA at room temperature — confirmed that the LED produced 208 lumens of light output and achieved 208 lumens per watt efficacy at a correlated color temperature of 4579K.

“We have now broken the elusive 200lm/W efficacy barrier for a single white power LED,” says John Edmond, Cree co-founder & director of advanced optoelectronics. “This is a result of improvements in blue optical output power, lower operating voltage and higher conversion efficiency,” he adds. “We continue to push the envelope in white LED technology to enable the highest efficiency white lighting products in the marketplace,” he claims.