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Telecentric Lens

Telecentric lens, is a kind of lens that the chief rays are parallel to the optical axis. There are three kinds of telecentric lens, that is object telecentric lens, image telecentric lens and bi-telecentric lens. Telecentric lens are always the core business of Canrill. After continuous research and development for 11 years, Canrill has successfully developed 1700+ kinds of lens, and the number is still increasing, to meet the diverse and growing applications.

Types Of Telecentric Lens

16k Line Scan (82mm) Telecentric Lens

12k Line Scan (62mm) Telecentric Lens

8k Line Scan (57.4mm) Telecentric Lens

Full Frame Telecentric Lens

38mm Sensor Telecentric Lens

35mm Sensor Telecentric Lens

2' (32mm) Sensor Telecentric Lens

7-4' (28mm) Sensor Telecentric Lens

4-3' (23mm) Sensor Telecentric Lens

1' (16.2mm) Sensor Telecentric Lens

Low Mag 2-3' Sensor Telecentric Lens

High Mag 2-3' Sensor Telecentric Lens WD 65mm

High Mag 2-3' Sensor Telecentric Lens WD 110mm

Low Mag 1/2' Sensor Telecentric Lens

High Mag 1-2' Sensor Telecentric Lens WD 65mm

High Mag 1-2' Sensor Telecentric Lens WD 110mm

High Mag 1-2' Sensor Telecentric Lens Long Working Distance

Advantages Of Canrill Telecentric Lens

High telecentricity and little-to-no distortion for accurate measurements

Good consistency for better imaging performance

Extensive range of products covering sensor size from 4.8mm to 82mm and supporting object FOV from 0.7mm to 390mm.

Considerable inventory offers the quickest leading time in industry

Quick customization service,break the customization record by producing a new lens within 12 days from design to finished product

World-famous brands endorsement, like Apple, Samsung, Huawei, Han's Laser, Foxconn, etc.

Telecentric Lens Tutorial

What's The Difference Between Resolution & Mtf30 For The Telecentric Lens?

Resolution and MTF have a different definition method.

Resolution formula is R=0.61*λ/NA, R is object resolution, λ is wavelength, usually 0.55um, NA is the numerical aperture of the object side of lens.

For example, XF-MT1X65D, the NA is 0.045, thus the resolution is 0.61*0.55/0.045≈7.45um. ( the resolution in our product list and drawings is 7.33um, is because decimal point numbers )

Therefore the corresponding line pairs should be 1000/(7.33*2)=68Lp/mm.

MTF is Contrast of output image/Contrast of input image. Since the input image is always larger than the output image, therefore the MTF value is always from 0-1.

MTF30 means the line pairs when the image MTF value is 0.3.

So to calculate the image side resolution, the formula is 1/MTF30/2.

For example, XF-MT1X65D, the MTF30 is 90lp/mm, then the resolution is 1/90/2=5.56um.

What Is The Resolution Of Telecentric Lens?

Resolution is the ablility of resolving details in the object.It describes the thinnest line that the human eye can distinguish.Normally,it is defined in optics as below:

R=0.6*λ/NA;

λ is the wavelength of the light(normally λ is 550nm);

NA is the numerical aperture of the lens.

How To Improve The Deep Of Field (dof) Of A Telecentric Lens?

The DOF of a telecentric lens can be changed by adjusting its aperature. When the aperature gets bigger, the DOF becomes smaller. When the aperature gets smaller, the DOF will increase.

What's The Advantage Of Telecentric Lens System?

Canrill Optics is one of professional optical lens companies? We provide Telecentric Lens, Telecentric Illuminator, Non-Telecentric Lens, large field of view telecentric lens, telecentric design, c mount telecentric lens, industrial camera lensand so on. Want to know about telecentric lens definition, telecentric lens magnificationand telecentric lens working distance? Want to know how to make a telecentric lens? Please contact us.



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