By means of actual test data，the influence of different proportions of light diffuser in lampshade and optical lens on the luminous angle and transmission efficiency is presented，which can be used to judge how to select the proportions of light diffuser in design，so as to improve the design efficiency and shorten the product development cycle.
We found a material can not only effectively improve the haze of light diffusion, but also maintain a high transmittance, do you want to know it? pls follow me!
According to V – H measurement method，by comparing the photometry and goniophotometry results of a multi – functional signal lamp with different diffusant concentration PC inner lens，we found that reasonable diffusant concentration that meets the requirements is less than 5% and obtained the photometric restraining points.
Anti-low drop agent is mainly used in plastic materials that need flame retardant grade up to V0, which can prevent melting dripping and improve flame retardant performance.
Light transmitance increases and haze decreases with the increase of the particle size of light difusion agent.
Our reseach results indicated the haze of PC was improved but its high light transmitance was maintained when 0.15wt% of light difusing agent was added.However，its impact strength decreased due to the presence of light difusing agent.Moreover，the masterbatch proces was found to be more efective than the direct melt-blending method. The anti-aging property of light-difusing PC was
significantly enhanced due to the presence of UV absorber.
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