In a telecentric optical system, there is no change in magnification when focusing. Thus, the magnification remains constant at different working distances. Similarly, the movement of an object also does not change the magnification, which makes a telecentric lens ideal for measuring objects with high accuracy.
In a telecentric optical system, the chief rays are parallel to the optical axis. As a result, the aperture becomes greater as the magnification is fixed by the focusing rays. This means that the F-number on a telecentric lens tends to be larger when compared to a standard megapixel lens.
• Surface inspection of silicon wafers
• Image defect inspections
• Inspection of dirt on prisms and glass circuit boards
• Measurement of thread pitches
• Reading 2D codes
| Model | Format Size (Inch) | Magnification Range | Shooting Magnification | W.D(mm) | Mount | Shooting Range(mm) | Size(mm)(∞) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4/3 | 1.2 | 1.1 | 1 | 1/1.2 | 2/3 | 1/1.8 | 1/2 | 1/3 | |||||||
| LM1120TC | - | - | - | - | - | ● | ● | ● | ● | 3.45~4.4× | 3.45×/4.0×/4.4× | 65.9/65.9/65.9 | C | 1.9×2.6 1.7×2.2 1.5×2.0 |
Φ57×180 |
| LM1121TC | - | - | - | - | - | ● | ● | ● | ● | 1.725~2.2× | 1.725×/2.0×/2.2× | 114.8/111.4/109.4 | C | 5.1×3.8 4.4×3.3 4.0×3.0 |
Φ48×147.5 |
| LM1122TC | - | - | - | - | - | ● | ● | ● | ● | 1.15~1.47× | 1.15×/1.3×/1.47× | 111.6/111.6/111.6 | C | 7.6×5.7 6.6×5.0 6.0×4.5 |
Φ50×123.9 |
| LM1123TC | - | - | - | - | - | ● | ● | ● | ● | 0.69~0.88× | 0.69×/0.8×/0.88× | 111.0/111.0/111.0 | C | 12.7×9.6 11.0×8.2 10.0×7.5 |
Φ50×121.5 |
| LM1125TC | - | - | - | - | - | ● | ● | ● | ● | 0.346~0.44× | 0.346×/0.4×/0.44× | 112.7/112.7/112.7 | C | 25.4×19.1 22.0×16.5 20.0×15.0 |
Φ51.5×142.3 |
Images may differ from the actual product.
| Model | LM1120TC | |||
|---|---|---|---|---|
| Magnification Range | 3.45〜4.4× | |||
| Image Size(mm) | 8.8×6.6(Φ11) | |||
| Shooting Magnification | 3.45× | 4.0× | 4.4× | |
| Object side N.A. | 0.2 | 0.2 | 0.2 | |
| W.D(mm) | 65.9 | 65.9 | 65.9 | |
| Shooting Range (mm) |
2/3 inch | 2.6×1.9 | 2.2×1.7 | 2.0×1.5 |
| 1/1.8 Inch | 2.1×1.6 | 1.8×1.4 | 1.6×1.2 | |
| 1/2 Inch | 1.9×1.4 | 1.6×1.2 | 1.5×1.1 | |
| TV Distortion (%) | 0.015 | 0.003 | -0.002 | |
| Back Focus in Air(mm) | 17.1 | 24.5 | 30 | |
| Mount | C-Mount | |||
| Resolution | 120lp/mm | |||
| Size(mm)(∞) | Φ57×180.0 | |||
| Weight(g) | 645 | |||
| Temperature Range | -10℃〜+50℃ | |||
| Storage Temperature Range | -20℃〜+60℃ | |||
| Model | LM1121TC | |||
|---|---|---|---|---|
| Magnification Range | 1.725〜2.2× | |||
| Image Size(mm) | 8.8×6.6(Φ11) | |||
| Shooting Magnification | 1.725× | 2.0× | 2.2× | |
| Object side N.A. | 0.131 | 0.131 | 0.131 | |
| W.D(mm) | 114.8 | 111.4 | 109.4 | |
| Shooting Range (mm) |
2/3 inch | 5.1×3.8 | 4.4×3.3 | 4.0×3.0 |
| 1/1.8 Inch | 4.2×3.1 | 3.6×2.7 | 3.3×2.4 | |
| 1/2 Inch | 3.7×2.8 | 3.2×2.4 | 2.9×2.2 | |
| TV Distortion(%) | 0.011 | 0.004 | 0.001 | |
| Back Focus in Air(mm) | 55.8 | 67.7 | 76.3 | |
| Mount | C-Mount | |||
| Resolution | 120lp/mm | |||
| Size(mm)(∞) | Φ48×147.5 | |||
| Weight(g) | 420 | |||
| Temperature Range | -10℃〜+50℃ | |||
| Storage Temperature Range | -20℃〜+60℃ | |||
| Model | LM1122TC | |||
|---|---|---|---|---|
| Magnification Range | 1.15〜1.47× | |||
| Image Size(mm) | 8.8×6.6(Φ11) | |||
| Shooting Magnification | 1.15× | 1.3× | 1.47× | |
| Object side N.A. | 0.101 | 0.101 | 0.101 | |
| W.D(mm) | 111.6 | 111.6 | 111.6 | |
| Shooting Range (mm) |
2/3 inch | 7.6×5.7 | 6.6×5.0 | 6.0×4.5 |
| 1/1.8 Inch | 6.3×4.7 | 5.5×4.1 | 4.9×3.7 | |
| 1/2 Inch | 5.6×4.2 | 4.9×3.7 | 4.3×3.3 | |
| TV Distortion(%) | -0.015 | -0.001 | 0.011 | |
| Back Focus in Air(mm) | 18.7 | 23.6 | 29.8 | |
| Mount | C-Mount | |||
| Resolution | 120lp/mm | |||
| Size(mm)(∞) | Φ50×123.9 | |||
| Weight(g) | 330 | |||
| Temperature Range | -10℃〜+50℃ | |||
| Storage Temperature Range | -20℃〜+60℃ | |||
| Model | LM1123TC | |||
|---|---|---|---|---|
| Magnification Range | 0.69〜0.88× | |||
| Image Size(mm) | 8.8×6.6(Φ11) | |||
| Shooting Magnification | 0.69× | 0.8× | 0.88× | |
| Object side N.A. | 0.07 | 0.07 | 0.07 | |
| W.D(mm) | 111.0 | 111.0 | 111.0 | |
| Shooting Range (mm) |
2/3 inch | 12.7×9.6 | 11.0×8.2 | 10.0×7.5 |
| 1/1.8 Inch | 10.4×7.8 | 9.0×6.7 | 8.2×6.1 | |
| 1/2 Inch | 9.3×7.0 | 8.0×6.0 | 7.3×5.5 | |
| TV Distortion(%) | -0.001 | -0.009 | 0.005 | |
| Back Focus in Air(mm) | 34 | 28.8 | 25.3 | |
| Mount | C-Mount | |||
| Resolution | 120lp/mm | |||
| Size(mm)(∞) | Φ50×121.5 | |||
| Weight(g) | 290 | |||
| Temperature Range | -10℃〜+50℃ | |||
| Storage Temperature Range | -20℃〜+60℃ | |||
| Model | LM1125TC | |||
|---|---|---|---|---|
| Magnification Range | 0.346〜0.44× | |||
| Image Size(mm) | 8.8×6.6(Φ11) | |||
| Shooting Magnification | 0.346× | 0.4× | 0.44× | |
| Object side N.A. | 0.04 | 0.04 | 0.04 | |
| W.D(mm) | 112.7 | 112.7 | 112.7 | |
| Shooting Range (mm) |
2/3 inch | 25.4×19.1 | 22.0×16.5 | 20.0×15.0 |
| 1/1.8 Inch | 20.9×15.7 | 18.1×13.6 | 16.5×12.3 | |
| 1/2 Inch | 18.6×13.9 | 16.1×12.1 | 14.6×11.0 | |
| TV Distortion(%) | 0.02 | -0.009 | 0.01 | |
| Back Focus in Air(mm) | 17.6 | 17 | 16.5 | |
| Mount | C-Mount | |||
| Resolution | 120lp/mm | |||
| Size(mm)(∞) | Φ51.5×142.3 | |||
| Weight(g) | 420 | |||
| Temperature Range | -10℃〜+50℃ | |||
| Storage Temperature Range | -20℃〜+60℃ | |||
