Our withdrawing wire tool can be used in cooperation with the conductor gripper to tighten the conducting wire. Our product is designed with the friction structure,which is flexible and reliable to turn. And our steel double hook turnbuckle plays a role in tightening the Steel Wire Rope, stranded steel wire, and some others. And the ratchet tackle block is always found in the line construction. It serves to tighten up the stranded steel wire, and aluminum stranded conductor, among others. The telescopic length reached 1 m. Torque Wrench and Accessories,Steel Turnbuckle,Tackle Block,Manual Chain Block Hoist MARSHINE , https://www.puller-tensioner.com
China Tightening Tools Suppliers
Detailed explanation of LED lighting optical design
Primary optics of LED light source
Each LED light source has a specific light intensity distribution characteristic, that is, a light distribution curve. We call this process an optical design. In most cases, the light distribution curve of the LED light source is Lambertian, that is, the angular intensity of the hair is a cosine distribution with the angle change:
The interaction between the primary light distribution and the secondary optical design of the LED light source is very critical. In order to facilitate the design of the secondary light source lens, a light source that does not change the light emission law of the original chip should be used as much as possible, that is, the light output characteristic is a Lang wave type. LED light source.
Secondary optical design of LED lighting
Under normal circumstances, the light source angle and light intensity distribution of the LED light source cannot meet the application conditions under the characteristic condition, so it is necessary to perform secondary light distribution to change the light output of the light source to meet the practical application requirements.
The main role of secondary optical design is usually the following three types:
1. Dispersion: Disperse the light from the LED source to form a larger angle to achieve a more uniform spot on the receiving screen (planar) (such as ceiling lights, direct-lit TV backlight lenses, etc.).
2. Convergence: Gather the light from the LED source to a smaller range to improve the center illumination intensity (such as projection lights, stage lights, etc.)