Backlights
Overview
A backlight provides even, low-intensity light. It is placed behind the target and aimed directly back towards the camera. The resulting silhouette can be inspected for proper size and shape.
- Connects directly to PresencePLUS vision sensors or an external power supply
- Installs directly behind the target
- Determines the shape and size of target objects
- Offers a highly diffused surface and uniform brightness, with a lower intensity than other lights
- Provides the most robust lighting for measuring and gauging
- Highlights through-holes in target objects
- Standard lights: Available in 70 x 70 mm or 85 x 220 mm light sizes with 24V dc supply voltage
- Specialty lights: Available in 50 x 50 mm, 75 x 75 mm, 100 x 100 mm, 50 x 200 mm or 100 x 200 mm light sizes with 12 or 24V dc supply voltage
- Offers choice of models with infrared or visible red, white or blue lights, and with continuous or strobing operation
- Provides minimum useful life of 10,000 to 60,000 hours, depending on model
Product Specifications
| Supply Voltage and Current | LED.B70X70M models:24V dc @ 250 mA max.; voltage supplied by PresencePLUS P4 sensors, if operating at 24V dc. LED.B70X70W models:24V dc @ 250 mA max. LED.B85X220M models:24V dc @ 500 mA max.; voltage supplied by PresencePLUS P4sensors, if operating at 24V dc. LED.B85X220W models:24V dc @ 250 mA max. LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models: LED..N models:12V dc ±10% with voltage regulation of ±1%
LED..N-24 and LED..N-S models:24V dc ±10% with voltage regulation of ±1%
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|---|---|
| Illumination | LED.B70X70 and LED.B85X220 models:diffused backlight; continuous or strobed operation is selectable using sensor software. LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:Continuous diffused, strobed diffused or continuous non-diffused, depending on model |
| Light Source and Wavelength | LED.B70X70 and LED.B85X220 models: Infrared:940 nm
Visible red:660 nm
LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:Infrared:940 nm
Visible red:640 nm
Visible white:6500 K
Visible blue:470 nm
|
| Connections | LED.B70X70M and LED.B85X220M models:300 mm pigtail with 3-pin male Pico-style quick-disconnect fitting. QD cable are ordered separately. LED.B70X70W and LED.B85X220W models:3-wire 2 m or 9 m PVC attached cable LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:1.8 m attached cable terminated with 9-pin D-sub donnector (male pins) |
| Construction | LED.B70X70 and LED.B85X220 models:low-carbon steel with black zinc plating, acrylic window LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:black anodized aluminum housing |
| Useful Life | LED.B70X70 and LED.B85X220 models:10,000 hours (LED ON time). When operated within specifications, output will decrease less than 30% after 10,000 hours and less than 40% after 20,000 hours. LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:actual useful life of strobed lights depends on duty cycle Infrared or visible white and blue:50,000 hours
Visible red:60,000 hours
|
| Operating Conditons | Temperature: LED.B70X70 and LED.B85X220 models:0° to +50° C
LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:0° to +40° C
Relative humidity:LED.B70X70 and LED.B85X220 models:90% @ 50° C (non-condensing)
LED.B50X50, LED.B75X75, LED.B100X100, LED.B50X200 and LED.B50X100 models:95% @ 40° C (non-condensing)
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| Cleaning Instructions | LED.B70X70 and LED.B85X220 models:Regularly remove any dust, dirt or fingerprints from the light source. Blow off dust using anti-static compressed air or if necessary, use a lens cloth and lens cleaner or window cleaner to wipe off remaining debris. Do not use any other chemicals for cleaning. |
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