Types ofobjectivelenses

The objective lens is the primary magnifying element in optical instruments. Positioned closer to the object being observed, it captures and magnifies the incoming light, bringing the specimen into focus. The objective lens is characterized by its varying magnification levels and includes the numerical aperture of the objective.

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Objective lens microscope definitionand function

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.

MXPLFLN objectives add depth to the MPLFLN series for epi-illumination imaging by offering a simultaneously improved numerical aperture and working distance.

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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.

Objective lensmagnification

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Compoundobjective lens microscope definition

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The objective lens and ocular lens are indispensable components in optical instruments, each contributing uniquely to the observation process. Recognizing their differences and understanding how they collaborate enhances our ability to explore the microscopic world with precision and clarity.

MicrometerThis product may not be available in your area.View ProductMPLAPON Our MPLAPON plan apochromat objective lens series provides our highest level of chromatic correction and resolution capability, along with a high level of wavefront aberration correction. View ProductMPLAPON-Oil Our MPLAPON-Oil objective is a plan apochromat and oil immersion lens that provides our highest level of chromatic correction and resolution capability. The numerical aperture of 1.45 offers outstanding image resolution. View ProductMXPLFLN MXPLFLN objectives add depth to the MPLFLN series for epi-illumination imaging by offering a simultaneously improved numerical aperture and working distance. View ProductMXPLFLN-BD MXPLFLN-BD objective lenses add depth to the MPLFLN series for epi-illumination imaging by offering simultaneously improved numerical aperture and working distance. View ProductMPLN Our MPLN plan achromat lens series is dedicated to brightfield observation and provides excellent contrast and optimal flatness throughout the field of view. View ProductMPLN-BD Our MPLN plan achromat lens series is designed for both brightfield and darkfield observation and provides excellent contrast and optimal flatness throughout the field of view. View ProductMPLFLN The MPLFLN objective lens has well-balanced performance with a semi-apochromat color correction, a fair working distance, and a high numerical aperture. It is suitable for a wide range of applications. View ProductMPLFLN-BD The MPLFLN-BD objective lens has semi-apochromat color correction and suits a wide range of industrial inspection applications. It is specially designed for darkfield observation and examining scratches or etchings on polished surfaces. View ProductLMPLFLN Our LMPLFLN lens is part of our plan semi-apochromat series, providing longer working distances for added sample safety and observation with increased contrast. View ProductLMPLFLN-BD Our LMPLFLN-BD brightfield/darkfield objective lens is part of our plan semi-apochromat series, providing longer working distances for added sample safety and observation with increased contrast. View ProductSLMPLN The SLMPLN plan achromat objective lens offers an exceptionally long working distance and the image clarity that you expect from the Olympus UIS2 optical system. It is ideal for electronic assembly inspection and other similar applications. View ProductLCPLFLN-LCD The LCPLFLN-LCD objective lenses are optimal for observing samples through glass substrates, such as LCD panels. The adoption of optical correction rings enables aberration correction according to glass thickness. View ProductLMPLN-IR/LCPLN-IR Our LMPLN-IR and LCPLN-IR plan achromat lenses have a long working distance and are specifically designed for optimal transmission in the near-infrared region (700–1300 nm wavelengths). View ProductWhite Light Interferometry Objective Lens This objective lens is designed for the Mirau style of white light interferometers and maintains a high level of temperature tolerance. The optimized numerical aperture of 0.8 provides improved light gathering, with a working distance of 0.7 mm. View Product

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.

Understanding the numerical aperture of the objective lens is crucial, as it determines factors such as resolution and depth of field. The ocular lens complements this by providing additional magnification, allowing for intricate examination and analysis.

Stagemicroscopefunction

Objective lensfunction

Conversely, the ocular lens, also known as the eyepiece, is situated near the observer's eye. Its primary function is to further magnify the image produced by the objective lens. Ocular lenses are often interchangeable, allowing users to customize their viewing experience based on desired magnification. The most common magnification for a microscope ocular lens is 10x. Additional magnifications of microscope ocular lenses include 12.5x, 15x, and 20x.

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To achieve optimal magnification and clarity, the objective lens and ocular lens must work in harmony. The process begins with the objective lens capturing light from the specimen, forming an intermediate image. This image is then further magnified by the ocular lens, delivering a detailed and enlarged view to the observer.

Olympus microscope objective lenses for industrial inspections offer outstanding optical performance from the visible light to near-infrared region. At Evident, we offer an extensive selection of Olympus objectives suited to specific inspection requirements and tasks. Our MXPLFLN-BD objective is designed for darkfield observation and examining scratches on polished surfaces, while our SLMPLN objective is ideal for electronic assembly inspection. Find your ideal microscope objective today for your inspection task. No matter your requirements, Olympus objective lenses have you covered.

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The DLP mirror is actuated via a computer controlled oscillator circuit. A laser beam directed to the mirror is either passed to a target detector, or diverted, ...

MXPLFLN-BD objective lenses add depth to the MPLFLN series for epi-illumination imaging by offering simultaneously improved numerical aperture and working distance.

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Objective lens microscopefunction

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When it comes to optical instruments like microscopes and telescopes, the objective lens and ocular lens play distinct roles in shaping our viewing experience. Understanding the differences between these crucial components is fundamental to unlocking the full potential of these devices.

Many microscopes have several objective lenses that you can rotate to view the specimen at varying magnification powers. Usually, you will find multiple objective lenes on a microscope, consisting of 1.25X to 150X.