Microscope Objective Lenses

Microscope objective lenses for use with a variety of types of microscopes. Here you will find high power objectives, long working distance objectives, phase contrast objectives, metallurgical objectives, strain free polarizing objective lenses, Near-Infrared Ratiation (NIR) objectives, Near-Ultraviolet Radiation (NUV) objectives, Ultraviolet Radiation (UV) objectives, and stereo auxiliary objective lenses for use with stereo zoom microscopes.

What is a Microscope Objective Lens?

A microscope objective lens is a crucial component of a microscope that is responsible for gathering and magnifying the specimen's image. It is located close to the specimen and plays a pivotal role in determining the quality and clarity of the final magnified image.

Function of Objective Lenses

The primary function of an objective lens is to capture light emitted or reflected by the specimen. It then focuses this light to form an enlarged image that can be further magnified by the eyepiece lens. By adjusting the objective lens, users can achieve different levels of magnification, allowing for detailed examination of minute structures.

Classification

Objective lenses come in various types, each designed for specific purposes:

1. Achromatic Objectives: These are standard objectives that correct for chromatic aberration, enhancing color accuracy.

2. Plan Objectives: Designed for flat-field microscopy, these objectives ensure a sharp focus across the entire visual field.

3. Fluorescence Objectives: These are specialized lenses optimized for fluorescent microscopy, enabling the observation of fluorescently labeled specimens.

4. High-Resolution Objectives: These offer exceptionally high levels of detail and are ideal for applications requiring precise imaging.

Magnification

Objective lenses are typically labeled with two numbers, such as 10x/0.25. The first number represents the magnification, indicating that the lens magnifies the specimen by a factor of 10. The second number is the numerical aperture (NA), which signifies the lens's ability to gather light.