Lasers for Fluorescence Microscopy - fluorescence microscopy
Microscope objectives come in a range of designs, including apochromat, semi-apochromat, and achromat, among others. Our expansive collection of microscope objectives suits a wide variety of life science applications and observation methods. Explore our selection below to find a microscope objective that meets your needs. You can also use our Objective Finder tool to compare options and locate the ideal microscope objective for your application.
Objective lenses are responsible for primary image formation, determining the quality of the image produced and controlling the total magnification and resolution. They can vary greatly in design and quality.
Opticsmeaning slang
These extended apochromat objectives offer high NA, wide homogenous image flatness, 400 nm to 1000 nm chromatic aberration compensation, and the ability to observe phase contrast. Use them to observe transparent and colorless specimens such as live cells, biological tissues, and microorganisms.
These semi-apochromat long-working distance water-dipping objectives for electrophysiology deliver flat images for DIC and fluorescence imaging from the visible range to the near-infrared. Their high NA and low magnification enables bright, precise macro/micro fluorescence imaging for samples such as brain tissue.
This semi-apochromat objective series provides flat images and high transmission up to the near-infrared region of the spectrum. Acquiring sharp, clear images without color shift, they offer the desired quality and performance for fluorescence, brightfield, and Nomarksi DIC observations.
Opticsmeaning in business
Designed for clinical research and routine examination work in the laboratory, these achromat objectives provide the level of field flatness required for fluorescence, darkfield, and brightfield observation in transmitted light.
OpticsPhysics notes PDF
For high-performance macro-observation, these apochromat objectives provide sharp, clear, flat images without color shift, achieving high transmission up to the near-infrared region of the spectrum. They perform well for fluorescence, brightfield, and Nomarksi DIC observations.
Designed for phase contrast observation of cell cultures in transmitted light, these achromat objectives combine field flatness and easy focusing with cost efficiency. They are well suited for routine microscopy demands.
Refraction happens when light changes direction, or bends, when it moves from one material to another. For example, light traveling through the air refracts when it hits water. This can make a straw in a glass of water look bent at the surface of the water.
These extended apochromat objectives offers a high numerical aperture (NA), wide homogenous image flatness, and 400 nm to 1000 nm chromatic aberration compensation. They enable high-resolution, bright image capture for a range of applications, including brightfield, fluorescence, and confocal super resolution microscopy.
Choose a language from the menu above to view a computer-translated version of this page. Please note: Text within images is not translated, some features may not work properly after translation, and the translation may not accurately convey the intended meaning. Britannica does not review the converted text.
RayOptics
Unsure of what microscope objective is right for you? Use our guide on selecting the right microscope objective to weigh your options.
These semi-apochromat and achromat objectives are designed for integrated phase contrast observation of cell cultures. They are used in combination with a pre-centered phase contrast slider (CKX3-SLP), eliminating centering adjustments when changing the objective magnification.
Designed for low-magnification, macro fluorescence observation, this semi-apochromat objective offers a long working distance, a high NA, and high transmission of 340 nm wavelength light.
Many microscopes have several objective lenses that you can rotate the nosepiece to view the specimen at varying magnification powers. Usually, you will find multiple objective lenses on a microscope, consisting of 1.25X to 150X.
To clean a microscope objective lens, first remove the objective lens and place it on a flat surface with the front lens facing up. Use a blower to remove any particles without touching the lens. Then fold a piece of lens paper into a narrow triangular shape. Moisten the pointed end of the paper with small amount of lens cleaner and place it on the lens. Wipe the lens in a spiral cleaning motion starting from the lens’ center to the edge. Check your work for any remaining residue with an eyepiece or loupe. If needed, repeat this wiping process with a new lens paper until the lens is clean. Important: never wipe a dry lens, and avoid using abrasive or lint cloths and facial or lab tissues. Doing so can scratch the lens surface. Find more tips on objective lens cleaning in our blog post, 6 Tips to Properly Clean Immersion Oil off Your Objectives.
Optimized for multiphoton excitation imaging, these objectives achieve high-resolution 3D imaging through fluorescence detection at a focal point of a large field of view. They enable high-precision imaging of biological specimens to a depth of up to 8 mm for in vivo and transparent samples.
These apochromat objectives are dedicated to Fura-2 imaging that features high transmission of 340 nm wavelength light, which works well for calcium imaging with Fura-2 fluorescent dye. They perform well for fluorescence imaging through UV excitation.
Optics is the study of light. Optics describes how light is created and how it travels. An important part of optics is the study of what happens when light hits different surfaces. When light hits a surface, it may be reflected, refracted, or absorbed.
Definition ofopticsin Physics
Reflection occurs when light hits a surface and bounces back. Reflected light makes images appear in mirrors and in other smooth, shiny surfaces.
The ocular lens is located at the top of the eyepiece tube where you position your eye during observation, while the objective lens is located closer to the sample. The ocular lens generally has a low magnification but works in combination with the objective lens to achieve greater magnification power. It magnifies the magnified image already captured by the objective lens. While the ocular lens focuses purely on magnification, the objective lens performs other functions, such as controlling the overall quality and clarity of the microscope image.
We’ve been busy, working hard to bring you new features and an updated design. We hope you and your family enjoy the NEW Britannica Kids. Take a minute to check out all the enhancements!
what are the 3 types of optics?
This super-corrected apochromat objective corrects a broad range of color aberrations to provide images that capture fluorescence in the proper location. Delivering a high degree of correction for lateral and axial chromatic aberration in 2D and 3D images, it offers reliability and accuracy for colocalization analysis.
For relief contrast observation of living cells, including oocytes, in plastic vessels, our universal semi-apochromat objectives feature a long working distance. These also provide high image flatness and high transmission up to the near-infrared region.
Offering our highest numerical aperture values, these apochromat objectives are optimized for high-contrast TIRF and super resolution imaging. Achieve wide flatness with the UPLAPO-HR objectives’ high NA, enabling real-time super resolution imaging of live cells and micro-organelles.
Importance ofoptics
Optimized for polarized light microscopy, these semi-apochromat objectives provide flat images with high transmission up to the near-infrared region of the spectrum. They are designed to minimize internal strain to meet the requirements of polarization, Nomarski DIC, brightfield, and fluorescence applications.
Mirrors and lenses are important tools in optics because they reflect and refract light. Eyeglasses, magnifying glasses, telescopes, and binoculars all have lenses or mirrors. They change the way people see things by controlling how light enters the eye.
Some surfaces neither reflect nor refract light. They absorb, or take in, light. This causes the surface to heat up. For example, a sidewalk heats up on a hot, sunny day because it is absorbing light.
For clinical research requiring polarized light microscopy and pathology training, these achromat objectives enable transmitted polarized light observation at an affordable cost.
Enabling tissue culture observation through bottles and dishes, these universal semi-apochromat objectives feature a long working distance and high contrast and resolution. Providing flat images and high transmission up to the NIR region, they are well suited for brightfield, DIC, and fluorescence observation.
For use without a coverslip or cover glass, these objectives prevent image deterioration even under high magnification, making them well suited for blood smear specimens. They also feature extended flatness and high chromatic aberration correction.
Opticsmeaning political
These semi-apochromat objectives enable phase contrast observation while providing a high level of resolution, contrast, and flatness for unstained specimens.
For phase contrast observation of cell cultures, these universal semi-apochromat objectives provide long working distances and flat images with high transmission up to the near-infrared region. They help you achieve clear images of culture specimens regardless of the thickness and material of the vessel.
These super apochromat objectives provide spherical and chromatic aberration compensation and high transmission from the visible to the near infrared. Using silicone oil or water immersion media, which have refractive indexes closely matching that of live cells, they achieve high-resolution imaging deep in living tissue.
For relief contrast observation of living cells, including oocytes, in plastic vessels using transmitted light, these achromat objectives provide excellent field flatness.
After translating an article, all tools except font up/font down will be disabled. To re-enable the tools or to convert back to English, click "view original" on the Google Translate toolbar.
Designed for clinical research and routine examination in labs using phase contrast illumination, these achromat objectives offer excellent field flatness.