Trichromatic Fluorescent Powder with High Brightness in China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 23 kg
- Supply Capability:
- 100000 kg/month
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Quality Product, Order Online Tracking, Timely Delivery
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Description of LED Fluorescent:
The degradation of electroluminescent devices depends on frequency of driving current, the luminance level, and temperature; moisture impairs phosphor(Fluorescent Powder) lifetime very noticeably as well.
Festures of LED Fluorescent:
Phosphor layers provide most of the light produced by fluorescent lamps, and are also used to improve the balance of light produced by metal halide lamps. Various neon signs use phosphor layers to produce different colors of light. Electroluminescent displays found, for example, in aircraft instrument panels, use a phosphor layer to produce glare-free illumination or as numeric and graphic display devices. White LED lamps consist of a blue or ultra-violet emitter with a phosphor coating that emits at longer wavelengths, giving a full spectrum of visible light.
Specifications of LED Fluorescent:
Appearance: Yellow crystalline powder
Chemical composition: Rare earth aluminate
Physical stability: waterproof and heatproof. No any changes under -50°C to 300°C in the air.
Chemical stability: under 200°C, brightness >90%; within 1000 hours after encapsulation, brightness decay
Safety: Conform to the RoHS {EU (Restriction of Hazardous Substances)} and all security standards. Non-poisonous, non- radioactivity and do no harm to human and environment.
Images of LED Fluorescent:
FAQ:
1.When can i get the price quotation?
We can send you the quotation within 24hours after your inquiry, including the shipping cost if you need.
2.What about payment term?
30% T/T deposit, balance against B/L copy.
Full T/T payment if quantity less than MOQ.
3. What’s your after-sales service?
One-year warranty, and 1% common accessories.
- Q:what is pigment dispersion syndrome?
- Pigment dispersion syndrome (PDS) is an affliction of the eye that, if left untreated, can lead a form of glaucoma known as pigmentary glaucoma. It takes place when pigment cells slough off from the back of the iris and float around in the aqueous humor. This is not what causes problems; however, if the pigment flakes clog the trabecular meshwork, preventing the liquids in the eye from draining, pressure can build up inside the eye. This pressure can cause permanent damage to the optic nerve. This condition is rare, but occurs most often in Caucasians, particularly men, and the age of onset is relatively low: mid 20s to 40s. Most sufferers are nearsighted. There is no cure as of yet, but PDS can be managed with eye drops or treated with simple surgeries. If caught early and treated, chances of glaucoma are greatly reduced. Sufferers are often advised not to engage in high-impact sports such as long-distance running or martial arts, as strong impacts can cause more pigment cells to slough off
- Q:the absorption spectrum and the range of light reflected by each
- three major pigments are 1.chlorophyll a 2.chlorophyll b 3.carotenoids chlorophyll a is the major pigment,chlorophyll b n carotenoid are the accessory pigments which help in absorption of the incident light of different wavelengths. another pigment xanthopyll-fucoxanthin is also present in some plants
- Q:What pigments are used in photosynthesis?
- Chlorophyll(green) is the primary pigment used in photosynthesis. Besides chlorophyll, plants also use pigments such as carotenes(orange) and xanthophylls(yellow).
- Q:is it the ink on regular printers?
- Some printers use only pigmented ink. Others use dye based and then some use a combination of both. Dye based ink is basically water based with a dye added to it. Pigmented ink has a solvent base with dye added. Pigment ink and dye based ink have both advantages and disadvantages. Dye based ink have better colors but pigment are more water and fade resistant. Dye based inks are therefore better for photos. I have a printer that has 4 dye based inks and a black pigment ink. Mine uses the dye based black and colours for pictures and the pigmented black is used for text. So the answer is yes. Pigmented ink is used in some regular printers.
- Q:If they are not the same, then what is the difference? Please help me out here.
- Yes, tannins are pigments but they aren't really the main plant pigment. Plant pigments usually refer to photosynthetic pigments (chlorophyll, carotenoids, etc.). These photosynthetic pigments give the leaves their green color (or yellow/orange in the fall). Tannins are non-photosynthetic phytochemical (involved in plant metabolism and internal functioning), but they are also a pigment. Tannins (and lignins) are brown. This is was gives dead leaves and wood their color. Tannins also leach out of the leaves when soaked in water (same process as brewing a cup of tea). So tannins are pigments when they leach out of leaves and stain water (or other things) brown, but they are not photosynthetic plant pigments. In other words, it depends on what context you are calling a tannin a pigment. In a live plant they are not a pigment (judgment call here). In a dead leaf or when they leach out of a leaf they are a pigment.
- Q:What do chlorophylls, cartenoids and phycobilins reflect? And what wavelengths of light do they absorb?
- Carotenoids generally reflect yellow, orange, or red and absorb blue to blue-green light spectra. Xanthophyll absorbs well at 400-530 nm Beta-carotene absorbs most strongly between 400-500 nm. Fucoxanthin absorbs light primarily in the blue-green to yellow-green that penetrates deeper in water, peaking at around 510-525 nm and again at 450-540 nm. This reflects a yellow brown giving brown algae their color. Phycobilins are not found in leaves except as a phytochrome. They occur in Cyanobacteria (bluegreen algae) and Rhodophyta's (red algae) photosynthetic pathways as accessory pigments a part of the light reaction pigment systems energy donors to the reaction center. Phytochromes respond to far red between 700-800 nm. Phycoerythrin is a phycobilin pigment in rad algae that reflects red light and is therefore responsible for the color of most red algae.
- Q:Explain why plants need a variety of pigments to carry out photosynthesis?
- Each pigment in the leaf absorbs only a very narrow range of wavelength. In order to make use of more light than one specific wavelength, then plants have several different pigments. Chlorophyll A and Chlorophyll B intercept wavelengths from roughly 400-500 nm and then again from 650-700 nm. There are several different carotenoid pigments, each intercepting a pretty specific wavelength. I think these are within 450 - 510 nm. You have a high rate of photosynthesis in the blue range and then again in the red range. (I wasn't able to find a very good image that explains this clearly, but the sources listed below do a decent enough job.) Green light and most of the yellows will be reflected and not used by the plant. Keep in mind that while phytochrome is a pigment, it is not involved in photosynthesis.
- Q:okay so I have always used all the cheap makeup and I am sick of it! I was wondering if mac pigments will give me a lot of color without having to use half of the container. Most eyeshadows look nothing like they are supposed to on me. they are like 100 times lighter. I have seen beautiful things done with the pigments but they look like they could get everywhere really easy. will they give me vibrant color without getting all over?
- Unlike cheap and nasty makeup there great you only need a tiny bit and it goes so far, vibrant yes there colours are great and come out like there suppose to and stay on for ages, although they can get a bit messy if you'v never used them before, but in saying that use it a few times and you'l get it in no time.
- Q:What are MAC pigments?
- MAC pigments are similar to eyeshadow, except they are loose and in a small container instead of pressed tight into a palette. They're more pigmented (brighter, more vivid colors). This is Mac cosmetic's websites description: Pigment is a highly concentrated loose colour powder that contains ingredients to help it adhere to the skin. Create a subtle wash of colour or an intense effect. Does not streak or cake. It appears that all the colors they have available (online, at least) are frost finishes too, in case you were wondering that. :)
- Q:pretty self-explanatory...
- Pigments help in making food for the plants they also give color to it.Pigments are of different types which give different color to its leaves or fruits.Like mango is green first and then turns yellow coz green pigment is replaced by yellow pigment. Green pigment in most of the fruits is present only till it requires food and is raw.
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Trichromatic Fluorescent Powder with High Brightness in China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 23 kg
- Supply Capability:
- 100000 kg/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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