A magnifying glass, also known as a convex lens, is a simple optical device used to observe small details of an object. Its main feature is that the middle is thick and the edges are thin, which allows light to refract when passing through it, thereby achieving an amplification effect. A magnifying glass is a powerful optical device that opens the door to the microscopic world with its unique amplification function, allowing us to observe details that are difficult to detect with the naked eye.

Long term use of magnifying glasses under strong light may cause damage to the eyes. Therefore, when using, it is important to avoid direct sunlight or other strong light sources on the eyes. A magnifying glass is a precision optical instrument that needs to be properly stored to avoid damage or loss. Avoid adverse factors such as moisture, heat, or pressure during storage.