After the invention of light-emitting diodes (LEDs) in 1962, most of the initial applications were concentrated on instrument display applications, and then gradually extended to 3C product backlights and lighting. With the increasing application field and scale of the market, in recent years, LED has made more rapid progress in various manufacturing and material technologies than in the past. The design of LED indoor lamps is more and more related to the future development of the industry. .
Figure 1 Types of lighting products
First, the needs of indoor lighting and the use of lamps
Humans have invented incandescent lamps for hundreds of years. They have a deep understanding of the functional requirements of lighting, lighting forms, types of lighting objects, and lighting scenes, as well as many different lamps. Generally speaking, according to the different illuminants, it can be divided into four stages: petrochemical fuel stage, tungsten lamp stage, fluorescent lamp stage and LED lamp stage.
From the above-mentioned luminaire styles and performances, it can be seen that each revolution of the light source will lead to huge changes in the way of use, habits, and new range and method of use. Combined with the analysis of existing common solid-state lighting fixtures, we can make Figure 2
Figure 2 Development process of lighting products
Figure 2 represents a rough curve of the four directions in the revolutionary period of different light sources developed by the luminaire. The revolution of the previous light source into the LED lighting fixtures, compared with the previous lighting revolution, will find that the price curve changes very sharply, and the true development of the trajectory should point to the "future development" position, and The price of non-"existing LEDs". The development of “structural design flexibility†of existing LED lamps is not strong enough; there is room for improvement in energy efficiency. This also means that the current design and development of LED lighting has not yet reached the level it should have.