Observation of the coating layer of eyeglass lenses using a microtome.

Section preparation using a microtome! Introducing examples of observing lens coating layers and multilayer films.

Lenses for glasses and cameras are coated with various layers. In the case of glasses, multiple coating layers are applied, including a hard coat to protect plastic lenses, an anti-reflective coat to reduce light reflection, and a UV coat to block ultraviolet rays. These layers are applied as very thin films, so we observed them from a cross-section. When observed with a scanning electron microscope (SEM), it was noted that a hard coat/multilayer film is applied on top of the lens substrate, and in the multilayer film, SiO and Nb films are alternately stacked. [Overview] ■ Cross-section preparation method - Prepared with a microtome - The lens removed from the frame was cut into small pieces and embedded in resin - Subsequently, a cross-section was prepared using a microtome, followed by optical microscope observation, SEM observation, and EDX analysis *For more details, please refer to the PDF document or feel free to contact us.

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