High powerobjectivelens

Do you need an individual objective for your application? Then contact our Leica OEM Optic Center so that we can offer you a customized solution.

Traditionally, stronger prescriptions have required thicker lenses. Aspherical lenses allow you to have increased vision correction without added thickness. Both lenses can deliver a sharp focus for even strong prescriptions. The aspherical lens, however, has a somewhat superior performance with less bulk than spherical lenses.

Objectivelens microscope function

Aspherical lenses have a slight curvature that is sometimes difficult to see with the naked eye. The curvature of these lenses is a more gradual curve than in spherical lenses and creates a more precise focus of light on the retina.

Spherical lenses are the most common lens type and are often considered the standard lens type. These lenses are curved on at least one side. The curvature of the lens is crafted to focus light in a way that best enhances your vision. This is typically done with a convex (converging) or concave (diverging) lens curve. Your eye doctor will order a specific curvature based on your vision needs, and the lens maker will match the lens curvature to the prescription.

To make it easier for you to find which Leica objectives work best for your microscope and application, you can take advantage of the Objective Finder

Ocular objectivevs magnification

Leica apochromats are objectives for applications with highest specifications in the visual range and beyond, offering field flatness up to 25 mm. The absolute values of the focus differences for the red wavelength and the blue wavelength to green wavelength (3 colors) are ≤ 1.0 x depth of field of the objective.

Leica microscope objective lenses are designed and made by our optics specialists to have the highest performance with a minimum of aberrations. The objectives help to deliver superior microscope image quality for many applications, such as life science and materials research, industrial quality control and failure analysis, and medical and surgical imaging.

Objectivelens magnification

Gray or black is the most common tint for a sunglass lens. They provide enhanced optics and clear vision on sunny or cloudy days. Colors will look the truest through a gray-tinted lens. They provide the best color enhancement and protection against glare. If you’re looking for a lens tint you can use daily, select gray.

Your prescription and the amount or specific type of vision correction you need will play a large role in the type of lens you choose. However, both spherical and aspherical lenses can meet the needs of most prescription strengths. You might make a personal choice between one lens or another based on the style and appearance you want, along with what price you can afford or what your vision insurance plan covers OvernightGlasses.com offers a variety of lens options for a complete pair of eyeglasses and automatically match your prescription with Aspheric lenses at no additional charge. When you select to use our lens replacement program or to order a complete new pair of glasses from Overnight Glasses, you can be certain that your lenses will be as thin and aesthetically looking as possible.

Ocularlens magnification

All Leica objectives are marked with codes and labels. These identify the objective, its most important optical performance properties, and the main applications it can be used for. For more information, refer to: Labeling of Objectives

Leica achromats are powerful objectives for standard applications in the visual spectral range, offering field flatness (OFN) up to 25 mm. The absolute value of the focus differences between red wavelength and blue wavelength (2 colors) is ≤ 2x depth of field of the objective.

The optics of the most basic microscope includes an objective lens and ocular or eyepiece. The objective lens is closest to the sample, specimen, or object being observed with the microscope (see the schematic diagram below). For more information, refer to the article: Optical Microscopes – Some Basics Show schematic diagram

Spherical and aspherical lenses are two options of lens shapes. Spherical lenses are typically more bulky but also cheaper. Aspherical lenses have a slimmer design and can fit into more frames but might cost more. Talk to your eye doctor or optometrist about the best options for your prescription. Overnight Glasses has staff that can help you place the right order for your vision needs.

Spherical lenses are usually thicker because of their more rounded shape. This will give these lenses a “Coke bottle” type of appearance. Aspherical lenses are thinner, with a less obvious profile. This usually makes aspherical lenses more stylish or aesthetically pleasing, but you might not have a choice if you require a multifocal prescription such as progressive and no-line bifocals.

Ocular objectiveexample

The production of spherical lenses can be done on a larger scale in batches. Aspherical lenses, however, are created one at a time using special machines. This special manufacturing process results in a more precise product but also raises the cost of aspherical lenses compared to spherical lenses.

Objectivelens

Leica semi-apochromats are objectives for applications in the visual spectral range with higher specifications, offering field flatness up to 25 mm. The absolute values of the focus differences for the red wavelength and the blue wavelength to green wavelength (3 colors) are ≤ 2.5x depth of field of the objective.

Outside of the basic shapes, other key differences between these lens types may factor into your decision of which lens type to choose.

Rachael Zimlich, RN, BSN, has been writing for a variety of news and health publications for more than 20 years.... "Read More"

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Spherical lenses are traditional, curved lenses, while aspherical lenses offer similar vision correction with a less bulky profile. There are pros and cons to each of these lens types. This article will explore some of the differences between these lenses and when one style might be preferred over another.

Ocular objectivemicroscope

The objective lens of a microscope forms a magnified, real, intermediate image of the sample or specimen which is then magnified further by the eyepieces or oculars and observed by the user as a virtual image. When a camera is used to observe the sample, then a phototube lens is installed after the objective in addition to, or even in place of, the eyepieces. The phototube lens forms a real image of the sample onto the camera sensor. The objective’s numerical aperture (NA), its ability to gather light, largely determines the microscope’s resolution or resolving power to distinguish fine details of the sample. Also, the working distance, the distance between the sample and objective, and the depth of field, the depth of the space in the field of view within which the sample can be moved without noticeable loss of image sharpness, both greatly depend on the properties of the objective lens. For more information, refer to: Collecting Light: The Importance of Numerical Aperture in Microscopy, How Sharp Images Are Formed, & Optical Microscopes – Some Basics & Labeling of Objectives

Not all products or services are approved or offered in every market, and approved labelling and instructions may vary between countries. Please contact your local representative for further information.

For standard applications, Leica Microsystems offers an extensive range of top-class microscope objectives. There are also Leica objectives which have been optimized for special applications. The highest-performance Leica objectives feature maximum correction and optical efficiency and have won several awards. All over the world, scientists are relying on Leica microscope objectives to gain insights into their area of research.