The insect eye floor is a scruple for all home improvement consumers. In the mixed market of fish and dragons, the sales of "potholes" are endless. Some unscrupulous merchants have used the moisture-proof layer and the lacquer surface as the outer layer of the "worm-eye floor" to sell the insect-eye floor in a deliberate manner, thus damaging the legitimate rights and interests of consumers.
Recently, a well-known flooring company CEO in a city exposed the industry to the reporter: Some solid wood flooring manufacturers in the market actually used the moisture-proof layer and the lacquer surface as the outer layer of the "bug floor".
One case is to use a colored glue to drip into a lot of insect eyes on the bottom surface of the floor blank, and then cover it with a putty powder to make it flat, and then brush several layers of paint similar to the color of the floor, which is difficult for consumers to distinguish with the naked eye.
Another case is to use a moisture-proof silver aluminum platinum to tightly wrap the bottom of a large number of insects and even decaying floor blanks. Even the joints on both sides are tightly packed, so that consumers can't see the true face of the mountain.
In general, the raw materials used for the floor with many insects or large insect eyes are the same. The cost per square meter is only seventy or eighty yuan, plus the cost of paint per square meter is 100 yuan; Qualified wood raw materials, especially first-class products, cost at least twice as much.
Therefore, the normal price of the "bug floor" that can be used should be less than half of the regular floor.
A longpass (LP) Filter is an optical interference or coloured glass filter that attenuates shorter wavelengths and transmits (passes) longer wavelengths over the active range of the target spectrum (ultraviolet, visible, or infrared). Longpass filters, which can have a very sharp slope (referred to as edge filters), are described by the cut-on wavelength at 50 percent of peak transmission. In fluorescence microscopy, longpass filters are frequently utilized in dichroic mirrors and barrier (emission) filters. Use of the older term 'low pass' to describe longpass filters has become uncommon; filters are usually described in terms of wavelength rather than frequency, and a "low pass filter", without qualification, would be understood to be an electronic filter
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