Machine Vision Telecentric Lens

• 

To provide extensive optical solutions in machine vision optics systems, Canrill Optics, as a custom lens manufacturer, has been keeping developing, manufacturing and marketing telecentric lensfor machine vision since 2009. In 2019 and 2020, Canrill Optics has successfully upgraded the telecentric lens to 4th generation PTL series and developed new series of non-telecentric Canrill lens.

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

Advantages Of Telecentric Imaging Lens System
High telecentricity and little-to-no distortion for accurate measurements.

Good consistency for better telecentric imaging system.

Extensive range of machine vision telecentric lens 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 telecentric lens machine vision 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 is a Telecentric Lens?
The machine vision telecentric lens design is mainly to correct traditional industrial lens parallax. Within a certain range, a telecentric lens for machine vision can make the image magnification of the image does not change. Currently, due to its unique parallel optical path design, the telecentric objective lens has been widely favored by machine vision applications that are highly required for lens distortion.

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 and λ is wavelength, which is usually 0.55um. NA is the numerical aperture of the object side of the 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 ability to resolve details in the object. It describes the thinnest line that the human eye can distinguish. Normally, the resolution for machine vision telecentric lens image is 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?
Telecentric Lens can eliminate the parallax error characteristic by having a constant, non-angular field of view. Its magnification and field of view do not change at any working distance of lens/working distance of a lens.

Telecentric Lens has a very low level of distortion, which makes the telecentric lens an excellent choice for metrology applications.

Telecentric Lens system can have a larger depth of field, which is beneficial in maintaining a very good image contrast even when looking at very thick objects.

Other supplier products

	The Difference Between a Telecentric Lens and a Normal Lens	What Is A Telecentric Lens? The telecentric industrial lens is a lens specially designed to correct the parallax of the traditional industrial len...
	Machine Vision Telecentric Illuminator	Telecentric illuminatoris of great significance to the image processing system. Providing stable and reproducible illumination conditions, the tele...
	Microscope Objective Lens	Microscope Objective Lens Suitable for ITO, particle detection, wafer inspection Infinity optical design for different microscope lensescan mat...
	Point Illumination	Suitable for low mag lens coaxial lighting, uniform light spot, high brightness Point IlluminationSpecification ...
	16k Line Scan (82mm) Telecentric Lens	Specially designed for large image circle up to 82mm in length Suitable for line scan cameras such as 16K x 5μm,16K x 3.5μm,12K x 5μm, ...

Same products

	DM-16BF DM-18BF New cover Electric Sprayer	Seller: Zhejiang Huaqi Information Technology Co., LTD	The Electric Knapsack Sprayer is a game-changer in the field of agricultural pest control. Engine...
	Simple Round Breeding Cage	Seller: Zhejiang Huaqi Information Technology Co., LTD	The Simple Round Breeding Cage features a durable and lightweight construction, making it suitabl...
	Syria-liquid nitrogen container for cell storage-liquid nitrogen level gauge	Seller: Henan Tianzhidao Biological Technology Co., Ltd	Precise experimental conditions and safe sample storage are key elements for the smooth developme...
	Italy-liquid nitrogen cell storage tank-liquid nitrogen tank level indicator	Seller: Henan Tianchi Instrument & Equipment Co., Ltd.	Precise experimental conditions and safe sample storage are key elements for the smooth developme...
	Egypt-cryogenic cell storage-liquid nitrogen level monitors	Seller: Henan Tianzhidao Biological Technology Co., Ltd.	Precise experimental conditions and safe sample storage are key elements for the smooth developme...