Scientific Article By: Assist. Prof. Dr. Munther Smeen Shukr Head of Optics Techniques Department Title: Re-cementing Lenses: The Practical Method of Lens Bonding Reconstruction

07/02/2026   Share :        
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There are common methods for reconstructing parts that have undergone bonding procedures for various optical components and eyeglasses, which are carried out according to the following processes: Separating the optical parts using heat. Cleaning the parts and then rebonding the optical components. It is essential to conduct an inspection of the parts before each process, regarding surface smoothness and curvature (lens degree), as well as the coating on the outer surfaces of the lenses. It is also necessary to identify the causes of lens separation, as follows: Misalignment of the lens axes, meaning the curvature of the lenses does not match during the bonding process. The presence of a gap between the two lenses due to unclean work conditions (environmental factors) or insufficient pressure applied during bonding. Using adhesive materials that are not suitable for the environmental conditions, etc. The presence of an air gap between the lenses is influenced by quality factors, which determine the specifications and dimensions required by the designer. However, in practice, the temperature and bonding method in the workplace have a significant impact on the separation process. The most important inspections required before reassembling two or more lenses are: Thoroughly cleaning the lenses to be bonded using acetone to remove any remaining adhesive or coating. Checking the curvature of the lenses. Measuring the ambient temperature of the working conditions. Measuring the optical performance of the lenses, etc. University of Al-Mustaqbal – The First and Leading Private University