Advanced Illumination - DF242 Large Low Angle Dark Field
- The DF242 is characterized as a Large Low Angle Dark Field ring light.
- Precisely aimed LEDs provide a very low angle of incidence, radial illumination pattern.
- A scratch on a sheet of glass is a good example of a defect that can be detected easily with a low-angle dark field illuminator.
- With a light intensity of 24kLux at a working distance of 1” (25mm), the DF242 is perfect for imaging problems with medium sized fields of view.
- A 35mm field of view is standard with optional fields of view of 45 and 70mm.
- Available in a range of wavelengths from UV to IR.
*Engineered to provide comparable optical characteristics to our previous RL1660.
The DF242 ring light is designed to function like the DF241 light in that it also produces a thin slice of light for very low angle surface defect detection. The positioning requirements and application envelope is similar to that of the DF241.
The DF242’s larger diameter allows an additional LED aim that projects a 2x larger spot size on target compared with the DF241 light.
The DF242 ring light differs from the DF196 Dark Field light in similar fashion as the DF241. Namely, aimed LEDs, rather than a central focusing lens, that produces a relatively smaller spot projection at close working distance compared with medium angle Dark Field ring lights.
General Specs
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Category |
Specification |
Detail |
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Optical |
Available Wavelengths |
White, 395 nm, 470 nm, 520 nm, 625 nm, 880 nm |
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Available Lensing |
No Lenses |
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Available Light Conditioning |
None |
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Electrical |
Power Consumption Info |
Refer to Datasheet for Details |
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Cable Info |
80" -0/+6" Long (2 m -0/+150 mm), 105°C Rated, Foil Shield w/ Drain |
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Mechanical |
Sizing Info |
Standard Sealed |
Length | 7.02" (178.3 mm) | Refer to Datasheet for Details |
| Width | 7.02" (178.3 mm) | ||||
| Height | 0.56" (14.2 mm) | ||||
| Inner Diameter | 4.78" (121.4 mm) | ||||
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Weight Info (Standard) |
~ 1.21 lbs (~548 g) per Unit |
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Mounting Info |
M4 Mounting Holes |
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Material Info |
Anodized Aluminum Housing, Powder Coated Cold Rolled Steel, PVC Cable Jacket, Steel Black Oxide Fasteners |
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Thermal |
Operating Case Temperatures |
25°C to 60°C |
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Operating Ambient Temperatures |
0°C to 35°C |
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Certification |
Compliance |
CE, RoHS, IEC 62471 |
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IP Rating |
Not Rated |
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Lumen Maintenance - White Only |
L70 (50,000 Hours) |
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Part Number Key
More Product Information
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- Precisely aimed LEDs provide a level of lighting control not found in traditional illuminators.
- A range of standoffs and fields of view may be specified at the time of order.
- The RL1424 is available in a wide range of wavelengths from UV to IR.
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Advanced Illumination
Machine Vision Lighting Solutions
