PTTC, PTTCC, PTCP series

Accurate calibration of machine vision systems

Catalog 2019

PTTCC available from March 2019

PT120-240 calibrations pattern has been substituted by PT120-144 for FOVs up to 170x140mm and by PT192-240 for FOVs of up to 260 x 200mm.

PTTCC and PTCP Series calibration patterns are supplied with a Certificate of Conformity.

PTCP series calibration patterns have been specifically designed for distortion calibration of CORE PLUS telecentric lenses with TCLIB Suite software library

Any machine vision lens (either telecentric or not) shows some amount of distortion. In addition to barrel or pincushion distortion, changes in the view angle or misaligned components will affect the image symmetry and generate the so called thin prism or keystone effect.

Imaging and metrology applications often require to minimize distortion, which can be software-corrected by analyzing the image of a precision pattern whose geometrical features are well known. For this reason Opto Engineering offers chrome-on-glass patterns optimized for software calibration, featuring extremely high geometrical accuracy thanks to photolithography techniques. The range of available chessboard patterns is compatible with most Opto Engineering telecentric lenses.

	Compatibility		Mechanical specifications
Part number	Compatible telecentric lenses	Compatible CMPH pattern mounts	Dimensions width × height	Thickness	Active area width × height	Squares width	Grade	Certificate
	Part numbers ending in		(mm × mm)	(mm)	(mm × mm)	(mm)
PT004-009Calibration pattern	004, 007 and 009	CMPH 004-024	33 x 26	3	15 x 13	0.20	1	No	Buy now
PT016-024Calibration pattern	016, 024	CMPH 004-024	33 x 26	3	31 x 24	0.60	1	No	Buy now
PT036-056Calibration pattern	036, 048 and 056	CMPH 036-056	66 x 52	3	64 x 51	1.35	1	No	Buy now
PT064-096Calibration pattern	064, 072, 080, 085 and 096	CMPH 064-096	107 x 83	3	105 x 79	2.20	1	No	Buy now
PT120-144Calibration pattern for telecentric lenses	110, 120, 130 and 144	-	180 x 140	3	170 x 140	3.00	2	No	Quote
PT192-240Calibration pattern for telecentric lenses	192, 200, 240	-	300 x 240	3	260 x 200	4.00	2	No	Quote
PT260-310Calibration pattern for telecentric lenses	-	-	340 x 280	3	320 x 260	5.00	2	No	Quote
PT004-009-CCalibration pattern for telecentric lenses	004, 007 and 009	CMPH 004-024	33 x 26	3	15 x 13	0.20	1	Yes	Quote
PT016-024-CCalibration pattern for telecentric lenses	016, 024	CMPH 004-024	33 x 26	3	31 x 24	0.60	1	Yes	Quote
PT036-056-CCalibration pattern for telecentric lenses	036, 048 and 056	CMPH 036-056	66 x 52	3	64 x 51	1.35	2	Yes	Quote
PT064-096-CCalibration pattern for telecentric lenses	064, 072, 080, 085 and 096	CMPH 064-096	107 x 83	3	105 x 79	2.20	2	Yes	Quote
PT120-144-CCalibration pattern for telecentric lenses	110, 120, 130 and 144	-	180 x 140	3	170 x 140	3.00	2	Yes	Quote
PT192-240-CCalibration pattern for telecentric lenses	192, 200, 240	-	300 x 240	3	260 x 200	4.00	2	Yes	Quote
PT260-310-CCalibration pattern for telecentric lenses	-	-	340 x 280	3	320 x 260	5.00	2	Yes	Quote
PTCP-S1-HR1-CCalibration pattern for telecentric lenses with a certificate	TCCP12144, TCCP23144, TCCP3MHR144, TCCP5MHR144	-	180 x 140	3	167.4 x 129.6	1.35	2	Yes	Quote
PTCP-M1-HR1-CCalibration pattern for telecentric lenses with a certificate	TCCP3MHR192, TCCP5MHR192	-	245 x 196	3	238 x 187	1.35	2	Yes	Quote
PTCP-M1-LR1-CCalibration pattern for telecentric lenses with a certificate	TCCP12192, TCCP23192	-	245 x 196	3	237 x 185	2.20	2	Yes	Quote

Technical documents

Data table

XLS

	Resolution	Dimensional Tolerances
Grade number	Min feature dimensions; Min spacing (μm)	Positioning error ± ± (μm)	Speed factor (μm/mm))
1	1.4	6.4	0.016
2	0.8	1.6	0.008
3	0.4	0.6	0.004
4	0.2	0.2	0.001