Recently, the Ministry of Agriculture of the People's Republic of China approved the issuance of three GM soybean import safety certificates. Genetically modified soybeans have once again become the focus of public opinion. The Yangcheng Evening News reporter found in a number of supermarkets in Guangzhou yesterday that 100% of the soybean oil sold was genetically modified, and 100% of soybean oil blended soybeans were also genetically modified soybeans. Transgenic: Soybean oil, blend oil, rapeseed oil Yesterday, the reporter investigated a number of large supermarkets in Guangzhou, such as AEON, PARKnSHOP, and Hutchison, and found that in the sale of cooking oil, soybean oil used 100% of genetically modified raw materials, while peanut oil was 100% non-genetically modified. In the supermarket edible oil shelf, there are several types of peanut oil, corn oil, rapeseed oil, sunflower oil, olive oil, soybean oil, blended oil, etc., of which peanut oil is the most occupied shelf position, soybean oil is the least. In the survey, all brands of soybean oil were marked with genetically modified raw materials. Only rapeseed oil was called non-genetically modified, and the blended soybean oil and rapeseed oil used in the blending basically used genetically modified soybeans and rapeseed. For example, Jinlongyu's soybean oil and blend oil are marked with genetically modified products. With the exception of soybean oil, rapeseed oil and blend oil, all other types of oil are marked with non-genetically modified products. For example, Arowana sunflower oil, peanut oil and corn oil are marked as non-genetically modified products. Sales: blending oil, peanut oil is the mainstream “Soybean oil has up to 5% of edible oil sales in our supermarkets.†According to a reporter from the relevant person in charge of a large supermarket in Guangzhou, soybean oil is not sold in the mainstream, while the sales of blended oil and peanut oil account for about 40%. In another high-end supermarket in Guangzhou, the reporter learned that soybean oil accounted for 1% of sales, while peanut oil accounted for 60% of edible oil sales. In terms of prices, the price of genetically modified products is significantly more than half that of non-transgenic plants. For example, the price of a five-liter bottle of genetically modified soybean oil at the PARKnSHOP supermarket is 49.9 yuan, and 2.5 tons of non-genetically modified peanut oil will cost 72.9 yuan. In good and many, the prices of several varieties of genetically modified soybean oil are all less than 50 yuan in 5 liters: Wuhu 5 liters for 48.9 yuan, Zhongding 5 liters for 38.9 yuan, and non-genetically modified peanut oil for 5 liters 100 yuan, such as Lu spent 5 liters loaded 144.5 yuan, Fu Linmen 4 liters installed 110 yuan. Citizen: How much is not assured For genetically modified products, most of the people surveyed said they still did not trust. “I will buy oil now to see if there are non-genetically modified signs. After all, whether these genetically modified products are safe is not conclusive.†Miss Zheng, a citizen, told reporters. Some citizens also believe that the price of genetically modified products is indeed cost-effective, but it will not eat a product for a long time and it will change the consumption of various products. “We hope that the country will not blindly introduce genetically modified crops. It should provide more ordinary food for the people,†Mr. Chen said. (Reporter Sun Jing and intern Zou Bing) The refractive index of the monocrystalline silicon material is about 3.42, and the reflectivity of the silicon lens after polishing is about 30% in the air environment. Our common silicon lens and silicon window can be coated on the surface (Antireflection Coating), which can reduce the reflectivity to less than 1.5% between 3 to 5 um.
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Diamond-Like Carbon (DLC) Coated Silicon Windows provide anti-reflection coating on one surface and a specially designed DLC coating on the other surface, making these windows highly durable and ideal for harsh environments.
Silicon lens specifications:
Standard precision
High-precision
Dimension Tolerance
φ5-250mm+0/-0.2
φ3-350mm+0/-0.2
Thickness Tolerance
1-50mm+/-0.1
1-50mm
Centration
3 arc minute
1 arc minute
Surface Quality
60/40
20/10
Power(fringe@633nm)
N<λ/2@633nm(in 25mm)
N<λ/10@633nm(in 25mm)
Clear Aperture
>90%
>95%
Chamfer
Protected <0.5mmx45deg
Protected <0.5mmx45deg