Analysis of LED plant lighting development map behind OSRAM layout

Since the acquisition of Lumileds by Jinshajiang Group, the anecdote between Osram Lighting and Dehao Runda, Foshan Lighting, and Mulinsen has become the focus of the global LED industry. More people care, who will hold the beauty? The think tank is of course very curious. But compared to this, think tank Jun wants to pay more attention to, as one of the two major lighting giants in the world, after the OSRAM split lighting division, what to do?

The answer seems obvious – despite the scandal, OSRAM is still advancing, retaining the components of OptoSemiconductors (OS), Special Lighting (SP), Luminaires & Solutions (LS), and its core business will In automotive lighting, intelligent lighting and solutions, and advanced light sources such as LEDs and lasers, the B2B market is focused on high-margin and high-tech barriers.

As early as the end of last year, OSRAM was recruiting on its official WeChat and declared that the transformation of the lighting market into semiconductor-based technology has spawned many new growth opportunities, and OSRAM will firmly seize these opportunities. To this end, OSRAM Lighting will invest approximately EUR 3 billion in new technologies and applications by 2020. It plans to invest 1 billion euros in the expansion of OSRAM Opto Semiconductors and build a new LED chip factory in Malaysia.

Among them, the global LED application plant lighting market, which is known as “2017 annual output value of 500 million US dollars”, is indispensable to Osram (see table below).

Table: Cases of the development of plant factories by world companies and research institutions

Of course, Osram's development in the field of plant lighting goes far beyond what we have seen. On March 20th, 2016, at the first cross-strait agricultural lighting forum, Chi Guangwei, a senior engineer of OSRAM Semiconductor (China) Co., Ltd., explained in detail the "LED plant lighting Osram solution". From this, in addition to being able to understand In addition to the development of plant lighting, we can also read the latest developments in OSRAM LED plant lighting.

First popularize the knowledge:

1. Why do plants need artificial light sources?

1. In the weather, the light intensity is insufficient and it is necessary to reinforce the light;

2. Guarantee the growth conditions of exotic plants;

3. Multi-layer lighting / interior lighting new applications;

4. Indoor/underground planting without sunlight;

5. Create conditions to accelerate plant growth and increase yield.

2. What is the role of light radiation in plant growth?

Light radiation associated with plant growth can be divided into:

1. Photosynthetic synthesis with light energy. Photosynthetic synthesis uses organic light to synthesize organic matter from carbon dioxide and water in the presence of chlorophyll;

2. Light form formation with signal (stimulation) effect. Light form formation is a signal that changes light information (spectral characteristics, sunshine conditions, presence or absence of light, etc.) to control stem growth, flower formation, and seed. Germination and so on.

Third, the comparison of radiation efficiency and photon efficiency of different light sources

Fourth, the traditional light source and LED light spectrum comparison

5. What spectrum (wavelength) is needed for plant lighting?

After research, we conclude that the LED wavelength should be 450 nm in the main deep blue, 660 nm in the red light, and 730 nm in the far red light. The different combinations of these spectra help the plants grow rapidly.

Sixth, how to choose LED light source for plant lighting?

Seven, LED plant lighting application:

A ceiling lighting: suitable for large-area lighting, is a supplement to daylight, similar to the downlight in general lighting, the requirements for the lighting are mainly long-life use to reduce the maintenance cost later, and require more dimming function, better Save energy;

B Internal lighting: The lamps are arranged in the middle of the plants. Under normal conditions, the sunlight cannot be irradiated into the middle of the plants. High-intensity irradiation can increase the growth rate. However, because the plants are too close to the plants, it is necessary to ensure that the plants are not burnt by the heat generated by the lamps. It is protected from the climatic effects and is easier to arrange and maintain than the high shed installation;

C Multi-layer lighting: It can effectively use the planting area, and it needs complete control of the environment. Generally, there is no participation of sunlight, but the energy saving requirements of the lamps are high, and the LED size used is as small as possible due to limited space.

Osram product layout: deep blue, super red, far red, EQ white

Look again, OSRAM's LED product layout in plant lighting. Based on the wavelengths required for plant lighting, OSRAM mainly introduces LED products with deep blue 450nm, red 660nm and far red 730nm. Among them, 730nm far red LED is a new product developed by Osram for plant lighting, which can control plants from germination. The whole process from vegetative growth to flowering. He was awarded the 2015 North American Lighting Exhibition Technology Innovation Award.

According to Chi Guangwei, the important role of 730nm far red light in horticultural lighting applications is to control the flowering cycle through 660nm and 730nm illumination, without relying on seasonal changes, which is important for ornamental flowers. value. In addition, one of the most important effects on plants is shading, that is, if the plant is mainly illuminated by the far red light of 730 nm, the plant will feel like it is blocked by another taller plant. Therefore, the plant will grow harder to break through the occlusion.

So, what are the advantages of OSRAM's LED series for plant lighting compared to similar products? Chi Guangwei summarized the following points:

1. Deep blue (450nm) and super red (660nm) versions provide the light needed for photosynthesis;

2. The far red light (730nm) version controls the whole process of plant growth from germination to vegetative growth to flowering;

3. EQ white light can add green, and can achieve a humanized working environment, and has a super high luminous efficiency of more than 160lm / W;

4. Compact package size, fully compatible with all available colors and radiation angles (80 degrees and 120 degrees);

5. High-performance LH (660nm) is greater than 3umol/J, cost-effective (can be driven to 700mA);

6. Flexible spectral ratio can be achieved: R/B, FR/R

7. Ceramic high-power package, high reliability, high temperature and high humidity.

Application case: Denmark, Finland, Germany, Japan

It is reported that the LED plant lighting sales market is mainly concentrated in Japan, South Korea, Central America, Europe and other countries and regions with less agricultural personnel. These countries and regions are also the main application case areas for OSRAM plant lighting.

As early as 2010, OSRAM and the Danish Fionia Lighting Company completed the pilot project. Fionia Lighting Company deliberately developed a greenhouse-specific LED lighting system with a total of about 50,000 Osram high-power LEDs , which confirmed the LED in the gardening. The application has enormous potential for energy savings.

In Hungkajki, Finland, Netled has applied millions of OSRAM Opto Semiconductors LEDs to horticultural lighting systems designed and installed in a curtain structure consisting of 10 25-meter-long strips of light. It is used to replace the high-pressure sodium lamp that has been used in the greenhouse, and the energy-saving effect is obvious.

In addition, the lawn lighting of the St. Pauli football stadium in Germany also uses LED lighting, which reduces the energy consumption by 50% on the one hand, and achieves the precise matching of the wavelength of the LED lamp and the ideal wavelength required for photosynthesis on the other hand, which significantly accelerates the turf. Growth rate.

Japan's Mirai, which is known as the "largest in the world", uses LED-based artificial light-type plant factories that produce 10,000 lettuce per day.

As the fully artificial light-controlled plant factory is gradually becoming a new manifestation of the semiconductor industry on a global scale, combining the technological advantages of traditional agriculture, the lighting and automation technology of the semiconductor industry, and the deep industrial foundation of network information, the plant factory will become The important application and development direction of the global semiconductor industry development. In the near future, with the continuous development of plant factories, the market penetration rate of LED plant lighting will gradually increase, and the Chinese market will enter an outbreak period, and it is expected to become the main battlefield for lighting the lighting of giants such as Osram, Philips and GE.