研究目的
To examine the main innovative technologies and the principle of operation of various types of LEDs, including their luminous efficiency, operating time dependencies on temperature, and their economic and environmental benefits.
研究成果
The paper concludes that the most common LED technologies have a high temperature dependence on the efficiency of radiation, which is the major challenge for the future development of LED technologies.
研究不足
The report does not claim the subject's exhaustiveness of theme, indicating that not all aspects of LED technologies are covered.