What Is an Objective Lens?
An objective lens is a critical component of optical instruments like microscopes, telescopes, cameras, and more. Its primary function is to gather light from the subject and form a clear image.
The operational principle involves the bending of incoming light by the lens due to differences in refractive indices, ultimately resulting in the formation of an image at the focal plane.
Objective lenses come in two main types: single-lens and compound-lens. They find applications in a wide range of fields, including microscopy, astronomy, and photography. The distinctive feature of the objective lens is its substantial influence on both the brightness and resolution of the resulting image. Moreover, its straightforward design makes it suitable for diverse applications. When using an objective lens, it’s crucial to select subjects that align with the lens’s performance capabilities, keep the lens free from dirt or contaminants, and handle it with care to maintain its optical quality.