MA920 LWD Plan Epi 20X Objective Dry Metallurgical Brightfield Objective for MT7000 and MT8000 Series [DISCONTINUED]

DISCONTINUED
N.A. 0.40, F.L. 10.0mm, W.D. 11.0mm
This Meiji Techno MA920 S. Plan LWD E20X, dry objective  Metallurgical Upright Microscope  Long Working Distance Infinity Objective is made to the highest Japanese quality and optical standards, utilizing an Infinity Tube Lens Design F=200mm. Designed to meet the most advanced metallurgical imaging requirements. This objective represents the culmination of Meiji Techno’s Optical technology. This objective offers increased brightness and the highest possible N.A. in its class for maximum light gathering ability. Designed to correct lateral and axial chromatic aberrations over the entire field of view. This objective produce images that are flat, crisp and clear with high contrast and optical resolution. This objective works with a wide array of applications. The stated magnification is based on a Tube lens of 200 mm. DIN Standard mounting threads is 0.7965” (20.1MM) Diameter threads, 36 TPI (Threads per inch), 55° Whitworth. This objective is compatible with all Infinity Corrected Optical System.The MA920 S. Plan LWD E20X upright compound metallurgical objective lens is also an option in our MT7000 and MT8000 Metallurgical Upright SeriesWhen Opaque specimens are examined with light from above the sample that is reflected back – this is referred to as episcopic illumination. These samples are viewed with metallurgical microscopes in metallurgy, engineering, manufacturing and other industrial applications. When designing objectives it is critical for Meiji Techno Japanese Engineers to set the ultimate resolution limit of the optical microscope. The important factors is to include the wavelength of light used to illuminate the specimen sample, the angular aperture of the light cone being captured by the objective and as important is the refractive index in the object distance between the objective front lens and the specimen. Resolution can be measured as the minimum detectable distance between two closely spaced specimen points of interest. Note: Meiji Techno offers objectives made in our main factory by Meiji Techno in Saitama, Japan with strict ISO9001 standards and Japanese optical quality.  When choosing a proper microscope objective, it is important to keep in mind that objectives are designed to integrate with a particular microscope.  Before interchanging objectives, it is imperative to check the tube lens design and focal length and the threading type of the objective being replaced.  Please note that the optical performance of each objective may vary from the engraved specifications when integrated with components and systems from different microscope manufacturers.  Multiple optical factors including the microscope objective, tube lens and eyepiece together define the magnification of a system

Description

The Brightfield Objective features include:
   • 100% MADE IN JAPAN

               • High Quality Plan Achromat Design

              • Flat image correction over entire field of view ( F.O.V.)

   • Brightfield Inspection
   • Computer-Aided-Design (CAD) objective
   •  Infinity Corrected Tube Lens Design, F=200mm
   • DIN Standard mounting thread is 0.7965”(20.1MM) diameter threads
   • 36 TPI (Threads per inch), 55° Whitworth
   • High quality optics designed by Meiji Techno Optical Engineers
   • Objectives composed of Numerous internal glass elements
   • Corrected for flatness of field
   • Uniform Quality and Glass formulations
   • Corrected for most common optical artifacts such as coma, astigmatism, geometrical abberation
   • Corrected for field curvature and spherical and chromatic aberration
   • Corrected for more aberrations over wider fields, but image flare has been dramatically reduced
   • Substantial increase in light transmission, yielding crisp and remarkably bright sharp images

Plan LWD Brightfield  Metallurgical Series

  • A variety of  Working Distance for Bright Field Inspection
  • 8.0mm – 11.0mm  Working Distance for 20X & 50X Models
  • High Quality Plan Long Working Distance Objective Design
  • Flat Image Surface over Entire Field of View
  • Good Color Reproducibility
  • 100% Designed and Made in Japan

Additional information

Weight 1.0000 kg
Components & Accessories

LWD PLAN EPI OBJECTIVES (LONG WORKING DISTANCE)   • MA920: LWD Plan Achromat Epi Objective 20X, N.A. 0.40, W.D. 11.0mm, F.N. 24   • MA921: LWD Plan Achromat Epi Objective 50X, N.A. 0.55, W.D. 7.5mm, F.N. 24

Downloads

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Double click to read at full screen Download Brochure (PDF)

Double click to read at full screen Download Manual (PDF)

Specifications

MA920 Info:LWD Plan Epi Objective 20X, N.A. 0.40, W.D. 11.0mm, F.N. 24This Meiji Techno MA920 Plan LWD 20X, dry  Metallurgical Upright Brightfield Microscope Objective Infinity is made to the highest Japanese quality and optical standards, utilizing an Infinity Tube Lens Design F=200mm. Designed to meet the most advanced metallurgical imaging requirements. This objective represents the culmination of Meiji Techno’s Optical technology. This objective offer increased brightness and the highest possible N.A. in its class for maximum light gathering ability. Designed to correct lateral and axial chromatic aberrations over the entire field of view. This objective produce images that are flat, crisp and clear with high contrast and optical resolution. This objective works with a wide array of applications. The stated magnification is based on a Tube lens of 200 mm. DIN Standard mounting threads is 0.7965” (20.1MM) Diameter threads, 36 TPI (Threads per inch), 55° Whitworth. This objective is compatible with all Infinity Corrected Optical System.The MA920 S. Plan LWD E20X upright compound metallurgical objective lens is also an option in our MT7000 and MT8000 Metallurgical Upright Series

Type 

 LWD Plan Epi(Metallurgical)

Optical 

 Infinity Corrected ∞ Tube Lens 

Tube Length 

 F=200mm

Magnification 

 20X

Numerical Aperture (N.A.) 

 0.40

Focal Length (F.L.) 

 10.0mm

Working Distance (W.D.) 

 11.0mm

Parfocal Distance 

 45mm

Diameter Threads

 0.7965" (20.1mm) DIN Standard

TPI 

 36

Whitworth

 55°

Diameter (mm) 

 -mm

Length (mm) 

 -mm

Weight (g) 

 70g

Oil 

 ?

IS9001 

 ?

Product Information:    • Manufactured: 100% MADE IN JAPAN   • Warranty: LIMITED LIFETIME WARRANTY    • Customer Support: 1-(800) 832-0060 (U.S.A Based)Package Information:    • Weight:  Less than 1lb   • Box Size: 8" x 8" x 4"