Welding lens cover are known to play a vital role in keeping welding technicians safe from dangerous and intense light radiations. Welding lens cover are categorized based on different specifications which let us define their quality based on different parameters. Following are some specifications you need to know about welding lens cover:

1)      Optical class

Welding helmet lens cover must be cut from poly carbonate optical sheet. Poly carbonate optical sheets provide more visibility and smooth edge as compared to other welding lens cover. In case ordinary glass is used, it may badly affect the eyesight of an individual. Mostly inferior quality poly carbonate sheets are used by many manufacturers, compromising the quality of welding helmet lens cover.

The benefits of using poly carbonate optical sheet are clearer surface, better visibility and smoother edge providing great results.

2)      Light diffusing capability

The light diffusing capability must be minimal in order to have a clear view of welding light arcs. As small as the diffusion of light, the sharper would be light arcs seen through the lens. Also the diffusion of light causes the light rays to merge with each other giving rise to an intersection of light making it blur and impossible to distinguish between arcs. This effect can be reduced by the use of less diffusible lens cover.

3)      Variation in luminous transmittance

Luminous transmittance lets different colors from being distinguished from each other. Variation in luminous transmission of light causes shade consistency across the lens for safe viewing. If a same shade is applied to all arcs of light, they may not be distinguished from each other. So a variation in luminous transmittance is a sign of good quality welding lens cover.

4)      Angle dependence of luminous transmitting light

Cartridge retains shading when viewed at a specific angle to protect the welder. If not viewed at a certain angle, it would cause a blurring effect. So good quality welding cover lens have angle dependence of luminous transmitting light. They tend to refract rays to a certain angle making them sharp looking.

5)      Angle of distortion

Angle of distortion plays an important role in displaying light. In order to clearly see through while welding, a good quality lens cover with a less angle of distortion must be used. This leads to clear display of intense light rays and arcs and also lets the welder clearly see everything. Ordinary glass can cause blur appearance thus making it vague for the technician to clearly see things.

The above specifications are a must in a welding lens cover. They must be checked to be appropriate in order to get quality lens cover for best results. Although welding lens cover come in different types and sizes but the basis of all are same and all are measured on same list of parameters for judging quality in all aspects.