Talking About COB Light Type Improvement Plan
Aug 31, 2018
Talking about COB light type improvement scheme With the release of LED product capacity, the price drop is obvious, and the product performance continues to improve and perfect. The cost-effective LED has become the first choice for all kinds of lighting, and the advantages of high efficiency and energy saving are recognized by the market.
Looking at the status quo of LED, the homogenization of products is serious, and the iconic technological breakthroughs are few and far between. From government subsidies to the release of chip capacity, localization of cost-effective packaging materials, expansion of packaging equipment and efficiency, labor-intensive processing of large and small lamps and lanterns, etc., through the explosive growth of production capacity of 5 to 10 years, LED has been tall from the original The semiconductor industry has become a very traditional lighting industry today. LED companies seem to have been struggling, sales channel development investment, better meet customer needs, and expanding market share has become the highlight of LED manufacturers, while looking for differentiation into LEDs. Manufacturers survive the weapon.
COB lamp beads are mainly used for downlights, bulbs, wall lamps, PAR lamps, ceiling lamps, spotlights, table lamps, etc. Currently, the common problem in the industry is that the finished lamps have serious spots, yellow spots, yellow circles, blue cores, dark areas. The problem of uneven light type, etc., most customers can barely accept.
The main cause of the spot problem is the matching problem between the COB lamp bead and the lamp lens (reflector cup): 1. The lamp bead design is unreasonable, the larger luminous surface is made of small wattage products, the number of chips is small, the arrangement is uneven, and there is a dark area; The secondary optical design of the lens (reflector) is unreasonable, and the lamp bead cannot be uniformly emitted (the lens problem is not discussed).
The initial solution to the improvement of the pearl type:
In the current fierce competition in the industry, it is not advisable to double the cost of lamp beads. Simple repeated tests will also consume a lot of manpower and resources. A large number of thermal shock tests have proved that the gold wire is too long, the risk of dead lights is greater, the stability of the wire is poor, and the shape of the wire arc deviates from the relevant technical indicators. Therefore, in the related product design, the stability of the lamp bead is first guaranteed, and secondly, the product light design is taken into consideration, but this solution can no longer meet the market demand for light quality.
