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ILET - Intermediate-Level Electro-Optical Tester

Small and Medium Aperture Standard Collimators

The CI Systems ILET (Intermediate-Level Electro-Optical Tester) family of test systems is ideally suited for performing Intermediate-level optical tests and laboratory testing.

Portable, compact, and computerized, ILET testers deploy easily across diverse locations, delivering comprehensive field testing for thermal imagers and visible light sensors while minimizing reliance on Depot-Level facilities.

The basic ILET configuration includes an optical collimator, one or more radiation sources (blackbody and/or visible light source) and a target wheel (manual or motorized). 

The ILET is easy to use when interfaced with CI Systems’ CTE software (optional), minimizing testing turnaround time and maximizing testing objectivity and repeatability.

The testers retain their accuracy over a wide range of ambient temperatures (Chamber option). Thanks to the ILET’s outstanding features and versatility, it is useful in a variety of applications such as testing in environmental chambers, testing on production lines and testing in the field (optional).

The following video presents additional information on CI Systems’ advanced E-O Testers:

For more information
FeaturesOptionsSpecificationsICD

Features

  • Collimator type: Off-axis collimator, reflective, with parabolic mirror (Pyrex or Aluminum).
  • Diffraction Limited on Axis
  • Spectral Band:  From 0.4µm to 15µm
  • A portable system
  • User Friendly: Easy to operate
  • Communication: Ethernet, RS232
  • Rugged construction design: per MIL-STD-810G (secured cargo)
  • Tripod-mountable

Options

  • Target Wheel: Manual or motorized (optional)
  • CTE S/W: All functions can be controlled using CI Systems’ CTE automatic test software
  • Radiation Sources available (optional): 
  • ILET CH models: Optional ILET models outfitted for operation in environmental chambers
  • Focus Stage: Simulating shorter finite distances is possible upon request (optional)

 Specifications

Environment:

ILET Standard models

ILET CH models (for Environmental Chamber)

Model:

ILET-4-2.0

ILET-5-1.1

ILET-5-2.0 -Short

ILET-6-2.0

ILET-4-2.0 -CH

ILET-5-1.1 -CH

ILET-5-2.0 -Short -CH

ILET-6-2.0 -CH

Clear Aperture, inch

4

5

5

6

4

5

5

6

Focal Length, inch

30

30

15

40

30

30

15

40

Field Of View, deg.

2.0

1.1

2.0

2.0

2.0

1.1

2.0

2.0

Target positions, standard target wheel (see note 1)

x8

x16

x16

x8

x8

x16

x16

x8

Size (Length x Height), cm (see note 2)

80 x 22

80 x 20

46 x 25

106 x 34

80 x 22

80 x 20

46 x 25

106 x 34

Weight, kg (see note 2)

12

12

14

23

12

12

14

23

Operational temperature range, deg.C

from +10 to +35

from -40 to +70

Target wheel Accuracy / Repeatability

Position Accuracy 0.1 mrad, Repeatability 0.05 mrad

Notes:

  • Different number of target positions available upon request
  • Weights and sizes may vary depending on the specific configuration. Weights do not include radiation sources.
  • A 2” aperture ILET pointing collimator is available upon request (see image, right)

 

SystemAperture DiameterFocal Length and FOVView ICDView 3D model
ILET 4-54”, 5”FL=30”, FOV=2.0°/1.1°
ILET-5-Short5”FL=15”, FOV=2.0°
ILET-6 ICD6”FL=40”, FOV=2.0°
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