SHARP talk with dimming function of the LED module features and objectives

As one of a new generation of lighting technology, LED lighting is ushered in the overall popularization stage. In order to improve the performance of the final product, SHARP March 2012 developed a module with LED "GW6TGCBG4FD" with color lighting, the light source module can be used as the spotlight and downlight, has begun production at the end of May 2012. The day before, the technical characteristics and development target reporter interviewed SHARP products, electronic devices, lighting devices business department vice minister and Minister Inouchi Tetsu career planning, and the lighting devices division second development minister Uemura Toyode.

Characteristics of development

The biggest feature of the development of the product is from incandescent lamp color (color temperature: 2700K) to the natural white (5700K) dimming function. And this function is achieved through a single LED module, the industry's first. Can be achieved between 2700K to 5700K arbitrary color temperature adjustment.

Moreover, with the dimming function at the same time, also has a "beautiful", "bright", "easy to use" these three characteristics. First of all, "beauty", not only the color rendering index (Ra) up to 90, and almost can not see the phenomenon of uneven color and brightness.

Followed by the "bright" aspects, even when the temperature is high, the luminous efficiency is also very low. When the input power is 90 25.9W, the luminous efficiency of incandescent lamp (2700K) is 71lm/W, the middle color (3800K) is 80lm/W, the natural white (5700K) is 77lm/W, the luminous flux is about 25 degrees celsius.

Finally, the "easy to use" this, the product will be the size of the control in the 20mm * 24mm * 1.8mm, and the input power of 15 ~ 50W the same products in the past. As a result, lighting manufacturers in the design of lighting fixtures can be easily designed with light. In addition, we can also provide customers with a full set of LED module driver needs of the battery and control module.

Development of LED module with dimming function

LED module is mainly in the light efficiency, color rendering, life and cost factors such as competition. After the maturity of these functions, only the cost of competition.

This time we put forward a new word that "make things impossible to achieve", and strive to stimulate new demand for comfort. The first step is the introduction of dimming function.

How can a single LED module with dimming function be implemented?

A high density packaging blue LED chip is arranged on a ceramic substrate, and the warm color phosphor and the cool color phosphor are arranged in a stripe shape, and the light adjusting function is realized by mixing the warm color system and the cool color to two kinds of tonal light. Although the details are not published, but it can be revealed that, through the optimization of heat dissipation design, while achieving a high temperature and miniaturization of high light flux.

We developed the LED module will be issued as coins in the same voice on the table, so we used the "money" nickname to call it. Due to the development of products will be configured as phosphor stripes, so we have dubbed the "tiger money" for its nickname.

The product development input power up to 25.9W, can be equipped in the spotlight and lamp on. Why don't you use the modules that are used in small products like LED bulbs?

A mention of LED lighting, people will think more light bulb and straight tube and other household appliances, which is an indisputable fact. However, the results from the present situation and Prospect of LED lighting appliance penetration point of view, the popularity of the spotlight and lamp. The highest rate in the future is expected to achieve high growth. We predict that 2014 LED penetration rate will reach 68%, the spotlight, downlight will reach 35%.

These lighting appliances have been using metal halide lamp, power consumption, the effect of LED is obvious. Moreover, by using a long life of LED, but also to reduce the frequency of replacement, which is a major factor in the introduction of LED.

The bulb type and straight tube lighting products LED penetration rate is still very low, we estimate that by 2014 only 8% and 4%, respectively. Due to the relative price difference between LED lamp and incandescent lamp and fluorescent lamp is relatively large, so in Japan and other countries and regions, the popularization rate will be slow.

What is the use of lighting fixtures for development?

The utility model is expected to be used in a wide range of fields, such as supermarkets, hotels, restaurants, families, etc., and can be used for adjusting light according to the purpose and the time period.

For example, in the supermarket according to different commodities into the most attractive color temperature. For example, meat for 3500K, vegetables for 4200K. The hotel room can be at rest and at work, the hotel can be at lunch and dinner, the family living room can be in the family reunion and rest, adjust for different color temperature and illumination.