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100mm Focal Length Achromatic Objective Lens Infinity Corrected Microscope Objective

Categories Achromatic Objective Lens
Brand Name: PDV
Model Number: WD-5002, WD-5005, WD-5010, WD-5020, WD-5050
Place of Origin: Beijing, China (Mainland)
MOQ: 1piece
Price: Negotiable
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Delivery Time: 1-2 weeks
Magnification: 2X , 5X , 10X , 20X , 50X
NA: 0.05 , 0.14 , 0.28 , 0.34 , 0.5
Focal length: 100mm , 40mm , 20mm , 10mm , 4mm
resolving power: 6.1μm , 2.4μm , 1.2μm , 0.9μm , 0.7μm
Weight: 0.28~0.3kg
product name: Achromatic Objective Lens
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100mm Focal Length Achromatic Objective Lens Infinity Corrected Microscope Objective

Flat field semi complex achromatic lens , Achromatic Objective Lens


SPECIFICATION:


Item Number

Product Name

Specification

WD-5002

2X Plan Apochromatic Objective

2X Plan Apochromatic Objective, W.D.34.6mm, Focal length 100mm, N.A.0.055, Depth of focus 91μm, FOVØ12mm(Ø24Eyepiece), Resolution 5μm, DiameterØ32.5mm, Weight 0.30Kg(0.66lb)

WD-5005

5X Plan Apochromatic Objective

5X Plan Apochromatic Objective, Parfocal distance 95mm, W.D.44mm, Focal length 40mm, N.A.0.15, Depth of focus 15μm, FOVØ4.8mm(Ø24Eyepiece), Resolution 2.3μm, DiameterØ32.5mm, Weight 0.31Kg(0.68lb)

WD-5010

10X Plan Apochromatic Objective

10X Plan Apochromatic Objective, Parfocal distance 95mm, W.D.34mm, Focal length 20mm, N.A.0.3, Depth of focus 3.5μm, FOVØ2.4mm(Ø24Eyepiece), Resolution 1μm, DiameterØ32.5mm, Weight 0.25Kg(0.55lb)

WD-5020

20X Plan Apochromatic Objective

20X Plan Apochromatic Objective, Parfocal distance 95mm, W.D.29mm, Focal length 10mm, N.A.0.35, Depth of focus 3.5μm, FOVØ1.2mm(Ø24Eyepiece), Resolution 1μm, DiameterØ32.5mm, Weight 0.32Kg(0.70lb)

WD-5050

50X Plan Apochromatic Objective

50X Plan Apochromatic Objective, Parfocal distance 95mm, W.D.17mm, Focal length 4mm, N.A.0.5, Depth of focus 1.1μm, FOVØ0.48mm(Ø24Eyepiece), Resolution 0.6μm, DiameterØ32.5mm, Weight 0.28Kg(0.62lb)


Why does the longer the objective lens, the larger the magnification, the darker the view?


The longer the objective lens of ordinary optical microscope, the larger the magnification, so the distance between the lens and the glass specimen is smaller. Less scattered light is reflected from above, so the field of vision is dimmed, and if the microscope has its own light source, it will not appear.


According to popular one, the larger the magnification, the closer the objective lens is to the loading plate, the less light entering the microscope, and the darker the field of vision.


First, the larger the multiple, the closer the mirror is to the object. Knowing that, when the light is fixed, the smaller the area, the darker of course it is. Conversely, the brighter it is.


If you think about it, when you're using a microscope, and you turn down the magnification and then you turn up the magnification, and you worry that the lens is going to crush the glass, that the lens is going to be longer when you turn up the magnification. The visual field will darken because there is less light coming in.



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