Wd-8005 Long Focus Objective 45mm Long Working Distance Flat Field Achromatic Objective

• After-sales Service: 1year
• Warranty: 1year
• Transport Package: The Cartons
• Specification: WD-8005/8010/8020/8050/8100
• Trademark: PDV
• Origin: China Beijing
• Model NO.: WD-8005/8010/8020/8050/8100
• Production Capacity: 1000

Product Description

Product parameters

MODLE	Magnification	Decomposition energy(μm)	numerical aperture(N.A)	Focus distance(mm)	Working distance(W.D)(mm)	Focus depth±D.F(μm)	Pupil diameter (mm)	field (1/2″) (mm)	weight (G)
WD-8005	5X	2.1	0.13	40	11.6	16.3	Ø4.8	0.96×1.28	85
WD-8010	10X	0.9	0.3	20	6.4	3.1	Ø2.4	0.48×0.64	85
WD-8020	20X	0.7	0.4	10	11.1	1.7	Ø1.2	0.24×0.32	85
WD-8050	50X	0.5	0.55	4	8.2	0.9	Ø0.48	0.10×0.13	95
WD-8100	100X	0.3	0.8	2	2	0.4	Ø0.24	0.05×0.06	105

Wavelength comparison diagram:

Compound achromatic objective lens and plane compound achromatic objective lens

 

The compound achromatic objective lens is composed of multiple groups of lenses. The correction of chromatic aberration is actually equal to the whole wave area of the scenery, but the chromatic aberration of partial magnification still exists. When it is used with Fugen eyepiece or other simple combination eyepieces, these residual color differences will make the image edge slightly colored. Therefore, it needs to be used with compensation eyepiece. The apochromatic objective lens has no restrictions on the light source, and good results can be obtained in white light illumination. If blue or yellow filter is added, the effect is better.

 

The plane achromatic objective has the same degree of aberration correction as the compound achromatic objective except for further image bending correction. The flatness of the image is not as good as that of the achromatic objective, while the plane achromatic objective can make the image clear and flat and further improve the image quality.