The color of white tea, like white silver, is not as green as green tea, not as dark red as black tea, and not as violet and brown as oolong tea. It is an expensive and rare historical tea with a lot of good names: Ruiyun Xianglong, Long Guosheng Snow, Snow Bud, Song Dynasty tribute tea has it. There is a white tea in the Anji Mountain in Zhejiang Province. It is said that there are hundreds of years old. After asexual reproduction in previous years, it has become Anji County's flagship tea, Anjibai Tablet, and it tastes good. One of my teachers had been to Hong Kong in the early years. He said that he had a bag of white tea and bought a car in Hong Kong. Aunt listen to it.
White tea is made from a variety of white and velvety hair on the shoots. Wherever there is such tea, white tea can be produced anywhere. Song Huizong said in his "Daguanchao Theory": "White tea is a kind of self, which is different from regular tea." In the past, when making white tea, first the buds that grow in spring days should be hand-knotted when the scales and fish leaves are developed, put people in the water to wash, say a water bud, and then remove the scales and leaves, and then go through the selection and steaming. Bake to dry, this is complete. Of course, it is much simpler, just take that fat and heart buds, called needles, and then made into tea.
Someone once asked an expert such a question: How is the taste of white tea? How is the soup color?
Good, a little sweet, it looks pretty after brewing, the taste began to fade after rushing for 4 or 5 times. In addition to Anji white tea in Huzhou, Zisun tea, Mogan yellow buds, and Yucheng flag guns are all good. White tea is now getting hotter.
Product Family Description
Ideal for Alignment and Machine Vision Applications
Multiple Fan Angles Available
Creates Uniform, Straight Line
Powell Lenses, also known as Laser Line Generator, create straight, uniform laser lines by fanning out collimated beams in one dimension. This can be contrasted with standard cylindrical lenses, which produce diverging laser lines with Gaussian intensity profiles. Fan angles of 10°-90° are available.
The Powell Lens can be widely used in alignment, machine vision systems, construction and process control fields, convert laser beams into uniform, straight lines. Unlike cylindrical lenses, which generate Gaussian beam profiles with hot-spot center points and fading edges, Powell Lenses provide an even distribution of energy along the length of the entire line.
We provide Powell lens in two precision, one is High Precision Powell Lens; the other is Standard Technology Powell Lens, Please see below to distinguish the two precision powell lens.
High Precision:
Powell Lens
Material:H-K9L
Diameter:9mm
Fan angle:10°-90°
Tolerance:+/-1°
Beam:1mm-5mm(±0.1%)
S / D:40/20
CA:> 90%
Line straightness:<0.1%
Line uniformity:<20%
Coating:Uncoated AR BBAR
Standard Technology:
Powell Lens
Material:H-K9L
Diameter:9mm
Fan angle:5°-110°
Tolerance:+/-3°
Beam:1mm-5mm
S / D:60/40
CA:> 90%
Line straightness:<0.1%
Line uniformity:<25%
Coating:Uncoated AR BBAR
Powell Lens,Optical Powell Lens,Custom Optical Powell Lens,Optical Glass Laser Line Gennerator
ChangChun Worldhawk Optics Co.,Ltd , https://www.worldhawk-optics.com