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LM75FC24M Kowa 75 mm 1.1″ C-mount Lens

Original price was: USD 1,714.92.Current price is: USD 1,429.10.

High-resolution 75mm C-mount lens for 1.1″ sensors. Features a manual F2.5-16 aperture, low 0.16% distortion, and a 0.3m minimum focus distance.

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Lenses

LM75FC24M Kowa 75 mm 1.1" C-mount Lens

Model Identifier LM75FC24M
Official Part Number 1011783
GTIN Standard NA

Technical Overview

The Kowa LM75FC24M is a high-performance C-mount industrial lens optimized for 1.1" sensors. It features a 75 mm focal length and is designed to support high-resolution imaging up to 24.00 megapixels with a minimal pixel pitch of 2.50 µm. This lens is suitable for precision machine vision applications requiring large image circles and sharp optical performance at a minimal object distance of 0.15 meters.

Key Features

  • C-mount compatibility
  • 24.00 MP high resolution
  • Large 1.1" image circle support
  • 75.0 mm focal length
  • 0.15 m Minimal object distance

High-resolution 24.00 MP support optimized for 1.1" large format sensors

Technical Specification Matrix

ParameterValue
Item number1011783
Focal length75.0 mm
Maximal image circle1.1"
Aperture range (F)2.5-16
Minimal pixel pitch2.50 µm
Minimal object distance (M.O.D.)0.15 m
Angle of view (HxVxD)8.0° x 10.7° x 13.3°
Back focal length20.80 mm
Maximal immersion depth4.0 mm
IR correctionno
IR cut filterno
Bildwinkel vertikal10.7° x 8.0°
Optical class1.1"
Resolution24.00 MP

Industrial Applications

1. Semiconductor & High-Density PCB Defect Metrology

In electronics manufacturing, this application integrates the Kowa lens into automated optical inspection (AOI) machines to scrutinize bare wafers and high-density printed circuit boards. The lens is paired with a large 1.1-inch high-resolution sensor to capture extreme close-up images of microscopic wire bonds and solder joints.

Problem Solved

Detecting sub-micron anomalies such as micro-cracks or solder bridging requires immense optical clarity. The incredibly short 0.15 m Minimal Object Distance (M.O.D.) combined with the 75.0 mm telephoto focal length enables massive macro magnification. Furthermore, the 2.50 µm minimal pixel pitch and 24.00 MP resolution ensure that ultra-fine trace defects are resolved perfectly without optical aberration.

24.00 MP2.50 µm pixel pitch0.15 m M.O.D.75.0 mm focal lengthAutomated Optical Inspection (AOI)

2. Remote High-Heat Metal Casting Inspection

Used in foundry automation and metallurgy, this lens is paired with a heavy-duty industrial camera enclosure to monitor red-hot metal castings and welding seams. The system captures high-fidelity surface imagery to detect porosity and hairline cooling cracks from a secure, remote location.

Problem Solved

Industrial cameras placed too close to molten or highly heated materials suffer from immediate thermal degradation. The 75.0 mm focal length and extremely narrow 8.0 degrees by 10.7 degrees angle of view allow the inspection system to be mounted at a long, safe standoff distance while still magnifying critical surface details. The aperture range of F2.5-16 can be manually stopped down to compensate for the intense radiant light emitted by the hot metal.

75.0 mm focal length8.0 degrees x 10.7 degrees angle of viewAperture F2.5-16Standoff distanceMachine vision

3. Intelligent Traffic Systems (ITS) Overhead LPR

Deployed in highway tolling and intelligent traffic monitoring systems, the lens is used in gantry-mounted vision setups to capture front and rear vehicle license plates across multiple high-speed lanes. It provides necessary telephoto capabilities to read alphanumeric characters accurately.

Problem Solved

Capturing fast-moving targets from a high, distant gantry often results in blurred or digitally pixelated images upon cropping. The 75.0 mm focal length optically bridges the physical distance, while the massive 1.1-inch maximal image circle and 24.00 MP resolution permit the LPR software to crop into specific highway lanes with zero loss of required pixel density. The F2.5 maximum aperture ensures fast shutter speeds can be maintained in varying outdoor light.

1.1-inch image circle24.00 MP resolution75.0 mm focal lengthF2.5 apertureIntelligent Traffic Systems

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