LED Lens Product Diversification Is Not Standard Enterprise Disorderly Melee

The main role of the lens of the LED is also applied to the LED light source is intensity distribution of secondary optical design. After the lens factory got its light -emitting shape type were analyzed according to the light intensity distribution tailored to customer requirements , the most critical parameter is the light angle, apparently speaking generally opt for the spotlight mostly small angle , and spot lights and light boxes on You must select a wide angle .

In addition to the light angle, the design also need to consider brightness , spot illumination, uniformity and other parameters, in addition to the material and the temperature is too etiolated also have certain requirements .

Diverse lighting solutions led to the diversification of the lens factory product, so the cost of lenses lens manufacturers are not large-scale production of natural difficult to have a big decline. Deeper reason also lies in lack of disorderly competition throughout China LED industry standard lead .

Admittedly , some products have been standardized current trends , such as lamps , generally in accordance with the length of 0.6 m , 0.9 m , 1.2 m , MR16, PAR30, PAR38 there are standards, but are only appearance requirements , specific requirements such as light efficiency, Color still each have their own standards, the lens factory and only for sections of the light source and the lens tailored to customer requirements .

"Now with the light 100lm lights have to do with 140lm light street lamps do have, obviously not the same as with the lens . "  Lihua Hu stressed .

Indeed, from the current lighting price, the cheapest you can reach one yuan / W, the most expensive can even reach $ 7 / W, various grades of natural lighting customer demand for lenses are not the same .

" Many companies are more sensitive to price , although our offer is not very high , but there are customers willing to buy a cheap lens making materials outlet . " Xue Teng said this seemed a bit helpless. Indeed, there is now Zhongshan lenses offer up to 7 points / month, while the average angle lens also a few quotes / month .

Reporters noted that less than half of these cheap lens prone to yellow, or even the bottom of the melting phenomenon seriously affect the quality of the lamp. Cheap lens manufacturers generally do not own optical R & D team , thanks to lens development plagiarism . No IQC nor QC, not even the quality checks. They did not clean room, often done in the open large metal shed , let alone the production process for anti-static , anti- dust treatment . Replaced once every hour there is no finger sets to prevent impurities entering the lens appear blackspots affect the appearance.

Meanwhile, cheap lens and lens regular factory produced materials used are very different. Good lens is generally made ​​of imported materials. " transmittance of imported materials will be better , the best materials such as Mitsubishi transmittance can reach 90 %, but made ​​only 80 percent light transmittance . " Sheng Hardware Lighting Parts Factory director Liangwen Biao said . Reporters from the market research you can see the thicker lens transmittance requirements lower , generally 2 mm acrylic light transmittance requirements of 93%, PC 89% -90%. In addition transmittance also some customers have special requirements , such as requiring the use of diffusion material or have a certain fire rating requirements of the material.

"import material in the curing, a better performance aspects of yellowing can ensure heat resistance, the production process less dust, is not easy to form a black dot . " Eliza Hu said based on the production process, they are carried out of internal stress , the treatment of 90 ° -95 ° acrylic oven baking , PC at 120 ° -150 ° oven baked to release the internal stress , so their products are emboldened to provide 3-5 year warranty.

Indeed, the injection time is also to ensure the quality of the lens a key point , because the injection time is short lens is not easy to release stress , it is easily deformed. According to the reporter , the general quality assurance of each injection molding machine daily lens manufacturers only produce an average of 8000-9000 lenses , but regardless of the quality of some of the manufacturers Zhongshan daily average for each injection molding machine can produce tens of thousands .

The most troublesome problem of internal stress , when using a lens just can not see , but generally over half a deformed, yellow , and so on a series of questions followed . As the saying goes you pay for it as long as the low-end lighting factory price low , black spots , deformation will occur after six months , the yellow light even with a series of questions so the deviation is not a problem .

In addition to the above, the lens factory hardware capacity requirements are high. Manufacturers are generally imported injection molding machine, the best equipment in Japan and Germany , once again also Taiwan equipment , generally do not consider domestic equipment. And be sure to use an optical injection molding machines, injection molding machines , but this is generally relatively small size , capacity for mobile phone housing for ordinary injection molding machines for the production capacity will be a lot worse.


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