Compact (TL)

Lenses for machine vision
Compact telecentric lenses
TL series

Manual - Telecentric - For line scan - Compact macro zoom - For 3CCD cameras - Accessories and filters

Megapixel (MGTL) - Compact (TL) - Varifocal (VTL) - For line scan cameras(LSTL)

Search

Telecentric lenses

Lenses in which the chief rays are parallel to the optical axis, providing a constant magnification regardless of the object distance.

The human eye suffer from a parallax error which causes the distant objects to look smaller than closer ones. Actually, this error is only a change in magnification within the range of depth of field of human eye. In a telecentric lens the system pupil is at infinity and this results in minimum perspective errors when changing the object position.

Therefore the size of the viewed object appears to be the same when changing the distance of the object (within the range of depth of field). These lenses are ideal for precision measurements applications.

Comparative diagrams of different optical systems

Standard lens	Object side telecentric lens	Both sides telecentric lens
The size of viewed object changes when the distance between object and lens varies. Lens has smaller dimensions.	The size of viewed object does not change when the distance between object and lens varies. Diameter of lens is larger. Cost is higher than standard lenses.	The size of viewed object does not change when the distance between object and lens and the distance between lens and sensor varies. This lens is rather expensive

Available compact telecentric lenses types:

	Working distance 40mm
	Working distance 40mm for coaxial lighting
	Working distance 65mm
	Working distance 65mm for coax lighting
	Working distance 110mm for coax lighting
	Working distance 220mm for coax lighting
	For 17mm mount micro-head camera
	For coaxial lightning 17mm mount for micro head
	For coaxial lightning 12mm mount for micro head

Working distance 40mm
Code	Magnif.	F.No.	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL20-40	2.0x	14.1	40mm	98mm	0.13%	0.071	4.7�	0.28mm	C	1/2"
TL40-40	4.0x	28.2		106mm	-0.19%	0.071		0.14mm
TL60-40	6.0x	41.6		118mm	-0.17%	0.072		0.09mm
TL80-40	8.0x	54.8		130mm	-0.16%	0.073	4.6�	0.07mm
Suitable for small devices such as bonding machine or chip mounter. Compact design with vibration resistance. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Working distance 40mm for coaxial lighting
Code	Magnif.	F. No	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL20C-40	2.0x	14.1	40mm	98mm	0.13%	0.071	4.7�	0.28mm	C	1/2"
TL40C-40	4.0x	28.2		106mm	-0.19%	0.071		0.14mm
TL60C-40	6.0x	41.6		118mm	-0.17%	0.072		0.09mm
TL80C-40	8.0x	54.8		130mm	-0.16%	0.073	4.6�	0.07mm
Suitable for small devices such as bonding machine or chip mounter. Compact design with vibration resistance. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Working distance 65mm
Code	Magnif.	F. No	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL10-65	1.0x	16.66	65mm	169mm	-0.07%	0.03	11.1�	1.33mm	C	1/2""
TL10-65-2	1.0x	10.6		169mm	-0.13%	0.047	7.1μ	0.85mm		2/3"
TL20-65	2.0x	13.0		142mm	0.1%	0.077	5.8�	0.26mm
TL30-65	2.0x	19.9		149mm	0.15%	0.075	4.36μ	0.18mm
TL40-65	4.0x	26.0		150mm	0.30%	0.077	4.47�	0.13mm
TL60-65	6.0x	39.0		163mm	0.33%		4.36�	0.09mm
TL80-65	8.0x	52.0		180mm	0.20%		4.36�	0.07mm
For middle working distance (65mm), short distance between object and sensor and high numerical aperture. Resolution value is calculated based on MTF. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Working distance 65mm for coax lighting
Code	Magnif.	F. No	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL10C-65	1.0x	16.66	65mm	169mm	-0.07%	0.03	11.1�	1.33mm	C	1/2""
TL10C-65-2	1.0x	10.6		169mm	-0.13%	0.047	7.1μ	0.85mm		2/3"
TL20C-65-R	2.0x	16.72		152mm	1/2": 0.01%	0.06	5.6�	0.33mm		1/2"
TL20C-65-R		16.72		152mm	1/3": 0.002%	0.06	5.6�	0.33mm		1/2"
TL30C-65		19.9		149mm	0.15%	0.075	4.36μ	0.18mm		2/3"
TL40C-65	4.0x	26.0		150mm	0.30%	0.077	4.47�	0.13mm
TL60C-65	6.0x	39.0		163mm	0.33%		4.36�	0.09mm
TL80C-65	8.0x	52.0		180mm	0.20%		4.36�	0.07mm
For midde working distance (65mm), short distance between object and sensor and high numerical aperture. Resolution value is calculated based on MTF. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Working distance 110mm for coax lighting
Code	Magnif.	F. No	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL10C-110	1.0x	21.7	111mm	212mm	0.09%	0.023	14.6�	1.74mm	C	1/2""
TL10C-110-2	1.0x	13.5	110mm	212mm	0.16%	0.038	8.3μ	1.05mm		2/3"
TL20C-110-R	2.0x	33.45		218mm	1/2":-0.03%	0.03	11.2�	0.67mm		1/2"
TL20C-110-R	2.0x	33.45		218mm	1/3":0.01%			0.67mm		1/2"
TL30C-110	3.0x	30.4		218mm	0.06%			0.27mm		2/3"
TL40C-110	4.0x	39.1		220mm	0.25%	0.051	6.6�	0.2mm
TL60C-110	6.0x	56.4		238mm	0.22%	0.053	6.3�	0.13mm
TL80C-110	8.0x	73.3		263mm	0.14%	0.053	6.3�	0.09mm
Long working distance (110mm) and compact, suitable for "custom" system. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Working distance 220mm for coax lighting
Code	Magnif.	F. No	Working distance	Object/ sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL05C-220	0.5x	6.79	222mm	357mm	0.02%	0.037	9.1�	2.17mm	C	1/1.8"
TL07C-220	0.7x	9.5		367mm	0.02%		9.1�	1.55mm		1/1.8"
TL10C-220	1.0x	13.35		384mm	0.00%		9.0�	1.07mm		1/2"
TL20C-220	2.0x	26.42		400mm	0.04%	0.038	8.8�	0.53mm		1/2"
Long working distance (220mm or more). For high resolution and short lens length. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

For 17mm mount micro-head camera (M15.5 x P0.5)
Code	Magnif.	F. No	Working distance	Object / sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL10-65-17	1x	16.66	66mm	169mm	0.07%	0.03	11.1�	1.33mm	M15.5 P0.5	1/2"
TL20-65-17	2x	13.0	65mm	142mm	0.07%	0.077	4.4�	0.26mm
TL40-65-17	4x	26.0		150mm	0.33%			0.13mm
TL60-65-17	6x	39.0		163mm	0.18%			0.09mm
Compact and lightweight design. Suitable for various applications. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

For coaxial lightning 17mm mount for micro head (M15.5 x P0.5)
Code	Magnif.	F. No	Working distance	Object / sensor distance	TV distortion	Numerical aperture object side (mm)	Resolution	Depth of field	Mount	Imager
TL10C-65-17	1x	16.66	66mm	169mm	0.07%	0.03	11.1�	1.33mm	M15.5 P0.5	1/2"
TL20C-65-17	2x	13.0	65mm	142mm	0.07%	0.077	4.4�	0.26mm
TL40C-65-17	4x	26.0		150mm	0.33%			0.13mm
TL60C-65-17	6x	39.0		163mm	0.18%			0.09mm
TL10C-110-17	1x	21.7	110mm	212mm	0.09%	0.023	14.6�	1.74mm
TL20C-110-17	2x	20.3		214mm	0.02%	0.049	6.8�	0.41mm
TL40C-110-17	4x	39.1		220mm	0.14%	0.051	6.6�	0.2mm
TL60C-110-17	6x	56.4		238mm	0.12%	0.0.53	6.3�	0.13mm
Compact and lightweight design. Suitable for various applications. Resolution indicates a theoretical resolution at a wavelength of 550nm. Depth of field is calculated assuming a horizontal 320 TV resolution using 1/2" CCD camera (permissible circle of confusion 40μ). Optical magnification is the ratio of the sensor against the object size.

Reference technical notes

	Introduction to CCTV lenses
	Machine vision lenses
	Optical calculator

Cliccate sulle parole evidenziate in giallo per vedere collegamenti a figure o ad altre pagine.
Click on words highlighted in yellow to view links.

Cliccate sulle immagini miniaturizzate per vederle ingrandite.
Click on thumbnails to view enlarged images.

Rapitron s.r.l.
Via Washington 59 - 20146 Milano ITALIA
Tel.: +39 02 659.82.82 Fax: +39 02 65.45.25

P.IVA/VAT No: IT 04498890153

Queste pagine sono disegnate e aggiornate da Rapitron s.r.l.
I marchi citati sono di propriet� dei rispettivi proprietari.
Le specifiche dei prodotti sono esposte cos� come dichiarate dai singoli fabbricanti e sono soggette a cambiamenti senza preavviso.
Sito ospitato da Range s.a.s.- Genova

These pages are designed and updated esclusively by Rapitron s.r.l.
All trademarks are property of the respective owners.
All products specifications are shown as declared by manufacturers and are subject to change without prior notice.
This Web Site is hosted by Range s.a.s. - Genova