Small Lens Units
Endoscope Lenses/ Lens Units

Endoscope Lenses/ Lens Units

Objective lens units for 1/6, 1/10, 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

  • 1/6 SEL140-032

  • 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 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*1 3.5 to 8 3.5 to 10
Back focus 0.89 mm 0.56 mm
Distortion <45% <50%
TV distortion >20% >40%
Relative illumination <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 F-number is adjustable upon request.

1/10 Series

  • 1/10 SEL150-038

  • 1/10 SEL120-022

  • 1/10 SEL100-020

Specifications

Model 1/10 SEL150-038*2 1/10 SEL120-022 1/10 SEL100-020
CCD size 1/10 inch
Image circle 1.8 mm 1.8 mm*3
Cover Glass 0.5 mm
Object distance 20 mm 10 mm
Depth of field 5 mm - ∞ 5 mm - 100 mm
Angle of view 150° 120° 100°
F-number*1 5.8 3.5 to 10
Back focus 0.75 mm 0.93 mm
Distortion <60% <35% <25%
Relative illumination >40% >20% >25%
Chief ray angle <1° <10°
Outer diameter φ3.8 mm φ2.2 mm φ2 mm
Total length 4.28 mm 3.2 mm
Mount M3.5 x 0.35 -
IR cut filter -
Sapphire cover glass - - -
  • *1 F-number is adjustable upon request.
  • *2 Built-to-order: please contact us for details.
  • *3 Vignetting occurs in the corners.

1/18 Series

  • 1/18 SEL080-015D

  • 1/18 SEL100-015D

  • 1/18 SEL120-015D

  • 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
Object distance 8 mm
Depth of field 3 mm - 100mm
Angle of view 80° 100° 120° 100°
F-number 4.5 / 5 / 5.5 / 6
Back focus 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
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