Small Lens Units
Endoscope Lenses/ Lens Units
Objective lens units for 1/6, 1/10, 1/11, and 1/18 CCD and CMOS image sensors
All the lenses are aspheric lenses, enabling bright and deep depth-of-field.
1/18 lenses are ideal for small-diameter endoscopes for medical and industrial use.
1/6 Series
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1/6 SEL140-032
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1/6 SEL120-034
Specifications
| Model | 1/6 SEL140-032 | 1/6 SEL120-034 |
|---|---|---|
| CCD size | 1/6 inch | |
| Image circle | 3.0 mm | |
| Cover Glass*1 | 0.3 mm | 0.5 mm |
| Object distance | 8 mm | 10 mm |
| Depth of field | 3 mm - ∞ | 5 mm - 100 mm |
| Angle of view | 140° | 120° |
| F-number*2 | 3.5 to 8 | 3.5 to 10 |
| Back focus*3 | 0.89 mm | 0.56 mm |
| Distortion | <45％ | <50% |
| Relative illumination | >20％ | >40％ |
| Chief ray angle | <16° | <1° |
| Outer diameter | φ3.2 mm | φ3.4 mm |
| Total length | 4.35 mm | 5.4 mm |
| Mount | - | - |
| IR cut filter | ○ | ○ |
| Sapphire cover glass | ○ | - |
- *1 It is not mounted on the standard lens unit.
- *2 F-number is adjustable upon request.
- *3 The thickness of cover glass is not included.
1/10 Series
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1/10 SEL120-022
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1/10 SEL100-020
Specifications
| Model | 1/10 SEL120-022 | 1/10 SEL100-020 |
|---|---|---|
| CCD size | 1/10 inch | |
| Image circle | 1.8 mm | 1.8 mm*4 |
| Cover Glass*1 | 0.5 mm | |
| Object distance | 10 mm | |
| Depth of field | 5 mm - 100 mm | |
| Angle of view | 120° | 100° |
| F-number*2 | 3.5 to 10 | |
| Back focus*3 | 0.93 mm | |
| Distortion | <35% | <25% |
| Relative illumination | >20％ | >25％ |
| Chief ray angle | <10° | |
| Outer diameter | φ2.2 mm | φ2 mm |
| Total length | 3.3 mm | |
| Mount | - | |
| IR cut filter | ○ | |
| Sapphire cover glass | - | - |
- *1 It is not mounted on the standard lens unit.
- *2 F-number is adjustable upon request.
- *3 The thickness of cover glass is not included.
- *4 Vignetting occurs in the corners.
1/11 Series
1/11 SEL140-020
Specifications
| Model | 1/11 SEL140-020 |
|---|---|
| Sensor size | 1/11 inch |
| Image circle | 1.49 mm |
| Cover Glass*1 | 0.15 mm |
| Object distance | 8 mm |
| Depth of field | 3 mm - ∞ |
| Angle of view | 140° |
| F-number*2 | 4 to 6 |
| Back focus*3 | 0.38 mm |
| Distortion | <50％ |
| Relative illumination | >50％ |
| Chief ray angle | <33° |
| Outer diameter | φ2.0 mm (Changeable) |
| Total length | 1.77 mm |
| IR cut filter | ○ |
| Sapphire cover glass | ○ |
- *1 It is not mounted on the standard lens unit.
- *2 F-number is adjustable upon request.
- *3 The thickness of cover glass is not included.
1/18 Series
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1/18 SEL080-015D
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1/18 SEL100-015D
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1/18 SEL120-015D
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1/18 SEL100-015S
Specifications
| Model | 1/18 SEL080-015D | 1/18 SEL100-015D | 1/18 SEL120-015D | 1/18 SEL100-015S |
|---|---|---|---|---|
| Sensor size | 1/18 inch | |||
| Image circle | 1.0 mm | |||
| Cover Glass*1 | 0.4 mm | |||
| Object distance | 8 mm | |||
| Depth of field | 3 mm - 100mm | |||
| Angle of view | 80° | 100° | 120° | 100° |
| F-number*2 | 4.5 / 5 / 5.5 / 6 | |||
| Back focus*3 | 0.37 mm | |||
| Distortion | <20％ | <32% | <46% | <24% |
| Relative illumination | >80％ | >70％ | >60％ | >50％ |
| Chief ray angle | <25° | |||
| Outer diameter | φ1.5 mm | |||
| Total length | 1.61 mm | 1.24 mm | 1.03 mm | 0.7 mm |
| IR cut filter | - | |||
| Sapphire cover glass | - | |||
- *1 It is not mounted on the standard lens unit.
- *2 F-number is adjustable upon request.
- *3 The thickness of cover glass is not included.
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