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Product
KPT-163 K9 Plano convex lens, Optical lens, Flat convex lens, di
[32616586351]
This product was added to our catalog on Tuesday 13 July, 2021.
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price:
$38.00
Product Description

Plano-convex lenses are mostly used for focusing parallel rays of light to a spot. The asymmetry of these lenses between the front and back surface minimizes spherical aberration effectively, particularly in the situations where the object and image are not at equal distance from the lens. The optimum case is where the object is placed at infinity (regarded as parallel rays entering lens) and the image is on the focus, which has infinite conjugate ratio, i.e. object distance/image distance. The curved surface of the lens should face the object direction

 

Lenses are coated products, please confirm the product's parameters before buying. If there is no product quality issues, the sale is not refundable, please understand~


Material

 K9 fine annealing

Diameter

25.4mm

Deviation of Diameter

+0.0/-0.2

Aperture

>90%

Focal length(f')

85.0mm

Deviation of focal length(Df)

±1% 587.6nm

Back focal length(fb)

82.17

Thickness of center(Tc)

4.3

Deviation of Thickness of center(DTc)

±0.1

Thickness of edge(Te)

2.42

Deviation of center

0.01

Diaphragm

3

Local diaphragm

0.5

Clearing

IV stand

Coating

MgF2 antireflection film

Weight

4.3



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