TC accuracy chart

Telecentric Accuracy Chart is a helpful tool for assessing the optical performances of a measurement system integrating OE Bi-Telecentric Lenses.

For each lens, the maximum measurement error caused by distortion is listed along with the maximum expected error due to deviation from ideal telecentricity.

The values of telecentricity error are coupled with the related field depth values, since the two parameters are proportional.

Decay in image sharpness caused by defocusing can be expressed in terms of width of the grey level transition (from 10 to 90% of the maximum value), as observed in the image of an object's edge. For this reason the "Edge Transition" values for each lens vary with the increase in Field Depth, as you can see by scrolling the chart horizontally. Egde transition values are grouped by colors according to the recommended application types.

Matrix detector telecentric lenses
10-90% Edge Transition:		10 μm		12 μm		14 μm		16 μm		18 μm		20 μm		24 μm		30 μm		36 μm		42 μm		50 μm
	Max distortion error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)
		Wide field depth measurement
		High accuracy metrology and dood resolution imaging
		High resolution imaging and extra-accurate measurement
TC 23 004	2					best focus		0,05	0.03	0.08	0.06	0.11	0.08	0.15	0.10	0.23	0.16	0.29	0.20	0.4	0.25	0.4	0.29
TC 23 007	3			best focus		0.06	0.04	0.11	0.08	0.18	0.13	0.24	0.17	0.3	0.2	0.5	0.4	0.7	0.5	0.8	0.6	0.9	0.7
TC 23 009	4			best focus		0.10	0.07	0.20	0.14	0.3	0.22	0.4	0.3	0.6	0.42	0.9	0.6	1.2	0.8	1.4	1.0	1.7	1.2
TC 12 016	8	best focus		0.7	0.6	1.1	0.9	1.4	1.2	1.9	1.7	2.4	2.1	3	3	5	4	6	5	7	6	8	7
TC 23 016	5	best focus		0.4	0.3	0.6	0.5	0.8	0.7	1.0	0.9	1.3	1.1	1.8	1.5	2	2	3	3	4	3	4	4
TC 12 024	13	best focus		1.5	1.3	2	2	3	3	4	4	6	5	8	7	10	9	13	11	15	13	18	16
TC 23 024	11	best focus		0.8	0.7	1.3	1.1	1.7	1.5	2	2.0	3	3	4	3	5	5	7	6	8	7	10	8
TC 13 036	24	best focus		6	4	9	6	12	8	16	11	20	14	28	19	38	26	46	32	55	38	66	46
TC 12 036	23	best focus		3	2	5	4	7	5	9	6	11	8	16	11	21	15	26	18	31	22	38	26
TC 23 036	16	best focus		1.7	1.2	3	1.9	4	2	5	3	6	4	8	6	11	8	14	10	17	12	20	14
TC 12 048	30	best focus		6	5	9	8	12	10	16	14	20	18	27	24	37	33	46	40	55	48	66	57
TC 23 048	22	best focus		3	3	5	4	6	5	8	7	11	9	15	13	20	17	24	21	29	25	35	30
TC 12 056	28	best focus		8	5	12	9	16	11	21	15	28	19	38	26	51	36	63	44	75	52	90	63
TC 23 056	20	best focus		4	3	6	5	9	6	11	8	15	10	20	14	27	19	33	23	40	28	48	33
TC 13 064	38	best focus		18	13	30	21	39	27	52	36	66	46	90	63	124	86	151	106	181	126	218	152
TC 12 064	28	best focus		10	7	16	11	21	15	28	20	36	25	49	34	67	47	82	57	98	68	118	82
TC 23 064	20	best focus		5	4	8	6	11	8	15	10	19	13	26	18	35	25	43	30	52	36	62	44
TC 23 072	23	best focus		7	5	11	7	14	10	19	13	24	17	33	23	45	31	55	38	66	46	79	55
TC 13 080	54	best focus		29	20	46	32	60	42	80	56	103	72	140	98	192	134	235	164	281	196	338	236
TC 12 080	50	best focus		16	11	25	17	33	23	43	30	56	39	76	53	104	73	127	89	152	106	183	128
TC 23 080	36	best focus		8	6	13	9	17	12	23	16	30	21	40	28	55	38	67	47	81	56	97	68
TC 23 085	31	best focus		9	7	15	10	20	14	26	18	34	23	46	32	62	44	76	53	91	64	110	77
TC 13 096	80	best focus		40	28	64	45	84	59	112	78	144	100	196	137	268	187	328	229	392	274	472	329
TC 12 096	47	best focus		22	15	35	24	45	32	61	42	78	54	106	74	145	101	177	124	212	148	255	178
TC 23 096	34	best focus		11	8	18	13	24	17	32	22	41	29	56	39	77	54	94	66	112	78	135	94
TC 23 110	35	best focus		16	11	25	18	33	23	44	31	57	40	78	54	106	74	130	91	155	108	187	131
TC 12 120	77	best focus		37	26	59	41	77	54	103	72	132	92	180	126	247	172	302	211	361	252	434	303
TC 23 120	56	best focus		19	14	31	22	41	29	55	38	70	49	96	67	131	91	160	112	191	133	230	161
TC 23 130	59	best focus		22	15	35	24	46	32	61	43	79	55	107	75	146	102	179	125	214	149	257	180
TC 12 144	72	best focus		51	35	81	56	106	74	142	99	182	127	248	173	339	236	415	289	496	346	597	416
TC 23 144	52	best focus		27	19	43	30	56	39	75	52	96	67	131	92	180	125	220	153	263	183	316	221
TC 23 172	79	best focus		39	27	62	43	82	57	109	76	140	98	190	133	260	182	319	222	381	266	458	320
TC 12 192	96	best focus		90	63	144	101	189	132	252	176	324	226	441	308	603	421	739	515	883	616	1063	742
TC 23 192	70	best focus		48	33	76	53	100	70	134	93	172	120	234	163	320	223	391	273	468	326	563	393
TC 23 200	92	best focus		53	37	84	59	110	77	147	103	189	132	257	180	352	245	431	300	515	359	620	432
TC 23 240	87	best focus		74	52	119	83	156	109	208	145	267	187	364	254	498	347	609	425	728	508	877	612

											Best performance area in terms of image resolution and measurement accuracy				Maximum field depth range for measurement purposes

Large detector telecentric lenses
10-90% Edge Transition:		10 μm		12 μm		14 μm		16 μm		18 μm		20 μm		24 μm		30 μm		36 μm		42 μm		50 μm
	Max. distortion error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)
		Wide field depth measurement
		High accuracy metrology and dood resolution imaging
		High resolution imaging and extra-accurate measurement
TC 4M 004-X	2							best focus		0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.0	0.1	0.1	0.1	0.1	0.1	0.1
TC 4M 007-X	3							best focus		0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.2	0.1	0.2	0.2	0.3	0.2
TC 4M 009-X	4							best focus		0.0	0.0	0.1	0.1	0.1	0.1	0.2	0.2	0.3	0.3	0.4	0.3	0.5	0.4
TC 4M 016-X	8							best focus		0.1	0.1	0.2	0.2	0.4	0.4	0.7	0.6	1.0	0.9	1.3	1.2	1.8	1.6
TC 4M 024-X	11							best focus		0.3	0.2	0.5	0.4	0.9	0.8	1.6	1.4	2	2	3	3	4	4
TC 4M 036-X	16							best focus		0.5	0.5	1.1	0.9	1.9	1.7	3	3	5	4	6	5	8	7
TC 4M 048-X	22							best focus		1.0	0.8	1.9	1.6	3	3	6	5	9	7	11	10	15	13
TC 4M 056-X	25							best focus		1.3	1.1	3	2	5	4	8	7	12	10	15	13	20	18
TC 4M 064-X	29							best focus		1.7	1.5	3	3	6	5	11	9	15	13	20	17	26	23
TC 4M 072-X	33							best focus		2	1.9	4	4	8	7	13	12	19	17	25	22	33	29
TC 4M 080-X	36							best focus		3	2	5	4	9	8	16	14	24	21	31	27	41	36
TC 4M 085-X	39							best focus		3	3	6	5	10	9	19	16	27	23	35	30	47	41
TC 4M 096-X	43							best focus		4	3	7	6	13	11	23	20	33	29	43	37	57	50
TC 4M 110-X	50							best focus		5	4	10	9	18	16	32	28	46	40	59	52	79	69
TC 4M 120-X	56							best focus		6	6	12	11	22	19	39	34	56	49	73	63	97	85
TC 4M 130-X	59							best focus		7	6	14	12	25	21	44	38	63	55	81	71	109	95
TC 4M 144-X	65							best focus		9	8	17	15	30	26	54	47	77	67	100	87	134	117
TC 4M 172-X	79							best focus		13	11	24	21	44	38	78	68	112	97	145	126	194	169
TC 4M 192-X	87							best focus		16	14	30	26	54	47	95	83	137	120	178	155	239	208
TC 4M 200-X	92							best focus		17	15	33	29	59	52	105	92	151	132	196	171	263	229
TC 4M 240-X	109							best focus		24	21	46	40	84	73	149	130	214	186	277	241	371	324
TC 2M 016-X	10							best focus		0.2	0.2	0.4	0.4	0.8	0.7	1.4	1.2	1.9	1.7	3	2	3	3
TC 2M 024-X	16							best focus		0.5	0.4	1.0	0.8	1.7	1.5	3	3	4	4	6	5	8	7
TC 2M 036-X	23							best focus		1.0	0.9	2.0	1.7	4	3	6	6	9	8	12	10	16	14
TC 2M 048-X	30							best focus		1.8	1.6	3	3	6	5	11	10	16	14	21	18	28	24
TC 2M 056-X	35							best focus		2	2	5	4	9	8	15	13	22	19	29	25	38	33
TC 2M 064-X	40							best focus		3	3	6	5	11	10	20	17	29	25	37	32	50	44
TC 2M 080-X	50							best focus		5	4	10	8	17	15	31	27	45	39	58	50	78	68
TC 2M 096-X	59							best focus		7	6	14	12	24	21	43	38	62	54	81	70	108	94
TC 2M 120-X	77							best focus		12	10	23	20	41	36	74	64	106	92	137	120	184	160
TC 2M 144-X	90							best focus		16	14	32	28	57	50	101	88	145	127	188	164	253	221
TC 2M 192-X	120							best focus		29	26	56	49	101	88	180	157	259	226	336	293	450	393

											Best performance area in terms of image resolution and measurement accuracy				Maximum field depth range for measurement purposes

Very large detector telecentric lenses
10-90% Edge Transition:		10 μm		12 μm		14 μm		16 μm		18 μm		20 μm		24 μm		30 μm		36 μm		42 μm		50 μm
	Max Distortion Error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)	Overall field depth (mm)	Max telec. error (μm)
		Wide field depth measurement
		High accuracy metrology and dood resolution imaging
		High resolution imaging and extra-accurate measurement
TC 16M 048	29							best focus		0.2	0.1	0.3	0.3	0.6	0.5	1.0	0.9	1.4	1.2	2	1.5	2	2
TC 16M 056	34							best focus		0.2	0.2	0.4	0.4	0.8	0.7	1	1.3	2	2	2	2	3	3
TC 16M 064	38							best focus		0.3	0.2	0.6	0.5	1	1	2	2	3	2	3	3	4	3
TC 16M 080	46							best focus		0.4	0.4	0.8	0.7	1.6	1.4	3	2.4	4	3	5	4	6	5
TC 16M 096	57							best focus		0.6	0.5	1.2	1.1	2	2	4	4	6	5	7	6	7	7
TC 16M 120	74							best focus		1.1	0.9	2.2	1.9	4.1	3.6	7	6.2	10	8	12	10	14	13
TC 16M 144	88							best focus		1.5	1.3	3.0	2.6	6	5	10	9	13	12	16	14	20	18

											Best performance area in terms of image resolution and measurement accuracy				Maximum field depth range for measurement purposes

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