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L120-DEVKIT

Brief

L120 is 6.7-190mm focal length (28x) motorized zoom lens is designed for 1/1.8" image sensors, has zoom/focus/iris functions, designed for 5M sensors.

Specifications

Optics

Image sensor 1/1.8" Effective image area > 9.3mm
Focal distance 6.7 ~ 190mm / ±5%
Aperture f/1.6 ~ f/4.7
Focus range
  • WIDE: 0.1m - infinity
  • TELE: 1.0m - infinity

Field of view (D=8.26mm)

  • WIDE: 65.5°
  • TELE: 2.4°

Distortion

  • WIDE: -1.08%
  • TELE: 0.35%

Recommended image sensor

IMX385

Mechanics

Flange back (FB, see diagram below)

-1.0 (in glass t=0.3 IRCF)

Lens zoom structure The stepper motor is directly connected to the screw
Lens focusing structure The stepper motor is directly connected to the screw
Lens size
  • Length: 119mm
  • Width: 50mm
  • Height: 50mm
  • Front end diameter:  43mm

In order to accommodate different image sensors, the focal distance is set back by FB distance. The actual distance for a specific sensor has to be calculated and spacers used. If the image plane is not set correctly, focus irregularities in the projected picture are expected.

fb.png

Motor specifications

Screw pitch 0.4mm
Spiral rotation direction Right
Rated voltage 5.0 VDC
Coil resistance
  • Zoom: 55Ω ± 10% / phase (T=25°C)
  • Focus: 55Ω ± 10% / phase (T=25°C)
Phase count 2
Step angle
  • Zoom: 18° / step
  • Focus: 18° / step
Operating temperature range -30°C ~ +70°C

Position alignment sensor PI

Model number

GP1S093HCZ0F SHARP

Iris

Driving resistance 120Ω ± 10% (T=20°C, 65% RH)
Braking resistance 120Ω ± 10% (T=20°C, 65% RH)
Close to open operation 3.5 ~ 5.0V
Open to close operation 0 ~ 0.8V

IR switch

Coil resistance 22.5 ± 10% (T=20°C)
Operation voltage

4.5 ~ 5.0V

Current consumption

144 ~ 200mA

Filter thickness

0.3mm

Switching time

200 ~ 500ms

Filters
  • Open air
  • 380 ~ 650nm (TAVG >90%)

Dimensions

L120-DEVKIT.PNG

More detailed documentation coming soon!