WOSEN LIGHTING TECHNOLOGY LIMITED

WOSEN LIGHTING TECHNOLOGY LIMITED

Home> Blog> Osram laboratory warm white LED light efficiency reaches 142lm / W

Osram laboratory warm white LED light efficiency reaches 142lm / W

March 16, 2023
Recently, according to foreign media reports, OSRAM Opto Semiconductors successfully increased the luminous efficiency of warm white LED light sources to 142 lm / W, setting a new laboratory record. At a correlated color temperature (CCT) of 2755 K, the color rendering index (CRI) of the LED is as high as 81. These values ​​were measured under standard conditions: at room temperature, using a pulse mode with an operating current density of 350 mA/mm2.

Bright and efficient warm white light is especially important for residential lighting applications. The laboratory solution for warm white LEDs demonstrates the enormous potential of these energy-efficient semiconductor light sources: the peak value of 142 lm/W is successfully measured under standard conditions, and the color perception is also very close to that of traditional incandescent lamps (color coordinates cx 0.46 on Planck's trajectory / Cy 0.41).

Dr. Norwin von Malm, former development manager of Osram Opto Semiconductors' German headquarters, said: "If we further develop in this direction and allow deviations from the Planckian trajectory, we are able to achieve higher luminous efficacy values, up to 160 at a correlated color temperature of 3000 K. Lm/W (cx 0.45 / cy 0.44). If this technology is applied to a 2 mm2 chip, the operating efficiency can be increased by 10% to 15% under the same operating current, that is, the pure warm white LED The efficiency is expected to reach 180 lm/W while achieving good color rendering."



The key to the improvement in light efficiency is the combination of new processes in film and UX:3 chip technology with new processes of conversion. Through the integration of expertise in all aspects of the production process, including epitaxial growth, thin-film chip architecture, conversion process and packaging technology, Osram Opto Semiconductors' R&D engineers have benefited a lot.

Contact Us

Author:

Ms. Mandy

Phone/WhatsApp:

+8613425434349

Popular Products
You may also like
Related Information
LEAD sincerely released the LED high bay light famous for

On April 22, network activity named "FAST 2015 -! OPEN DAY" was launched by a brand LED high-power outdoor lighting manufacturer- Shenzhen Lead Optoelectronics Technology Co., Ltd.(Chinese name is...

Hublot watch brand ambassadors worldwide "Lightning" Bolt light the light of hope The new Kyoto store interpretation of the fusion of culture

Recently, the world's leading watch brand Hublot and brand ambassador, legendary track and field athlete Usain Bolt hand in hand into Kyoto, the ancient capital of Japan, with passion to ignite...

Cree Introduces XLamp MK-R LED Light Efficiency up to 200lm/W

After two years of breakthrough in the laboratory's light efficiency of 200 lm/W, Cree has finally produced the series of LED chips with 200 lumens per watt at the end of 2012, and officially...

Related Categories

Email to this supplier

Subject:
Email:
Message:

Your message must be betwwen 20-8000 characters

  • Send Inquiry

Copyright © 2024 WOSEN LIGHTING TECHNOLOGY LIMITED All rights reserved. Privacy Policy

We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Send