Fabrication and Study the Optical Properties for Methyl Green Gelatin Filter

In this work, an optical wratten gelatin filter was fabricated then its optical properties have been calculated, such as the filter thickness, aging, effect of protection glass plates, dye concentration and the period of mixing the gelatin with distill water at selective temperature. From this investigation, it was found that the best gelatin concentration is 4%, also the preferable mixing time of gelatin with water is 20 min. The preferable thickness is 0.01 cm at temperature 313 K. The drying temperature is 298 K for period 20-24 hr. the optical characteristic of our filter is in good agreement with that standard filters