PinPoint, a laser-like LED technology, is a patented technology developed by SICK and is also the technology we can most easily demonstrate. Therefore, over the years, demonstrating PinPoint has become our standard practice and continues to this day.
Whenever our sales or product management colleagues demonstrate the product to customers, they confidently plug the photoelectric switch into a power source and shine the light on a white object so that customers can experience what the light looks like. Then they boast about it, and sometimes they even have someone take out a hair (anyway, not their own) and wave it back and forth in front of the switch. At this time, the buzzer on the power supply will beep "beep, beep, beep" along with it, which is quite satisfying.
Now our customers are saying, "Okay, okay, we know your spot size is smaller, but what are the benefits for us?"
Come on, today we'll delve into all aspects of PinPoint LEDs—
Comparison of PinPoint LEDs with Traditional LEDs
Traditional LED
●Light passes through the NPN and PNP regions and forms in a broad transition zone.
● Current enters the LED through a small point.
Traditional LED light spot
● Uneven light intensity
● A halo surrounds the core light point, affecting its effect.
● Shadows are present at the joint lines and solder joints.
● Reduced accuracy and precision
● BGS performance declined
● Reduced detection distance
PinPoint LED
● Light is formed in a small transition zone between two crystalline films using a specific material.
● Current flows into the LED through a metal shield with a circular opening for light emission.
The light spot of a laser-like PinPoint LED
● Uniform and high-intensity light
● The shape of the light spot is very clearly discernible.
● No halo around the core light spot
● High precision, high accuracy
● Longest detection distance
● Excellent BGS performance
● Excellent dark object detection performance
summary
Traditional LED
PinPoint LED
Advantages of PinPoint LED Technology
●SICK patented technology
● More concentrated light spot, easier to calibrate
● Increase detection distance
● It can detect dark objects more effectively (uniquely detects objects with a reflectivity of < 1%).
● It can detect tiny objects more effectively (as small as 0.1 mm, depending on the specific object).
● Improved BGS performance
● Laser-like LEDs do not require the same precautions as those used with lasers.
● Wider operating temperature range compared to laser sensors
● Twice the lifespan of laser LEDs
● Version 2.0 has been released, and its strength is 1.5 times that of version 1.0.
SICK compared to other brands
The effect of pinpoint on detecting transparent bodies
Other commercially available mirror-reflective products
Because of the large beam spread angle, when a transparent object (such as a bottle) enters, more light is refracted to the mirror, and the energy exceeds the learning threshold, resulting in an incorrect output.
Mirror-reflective products using SICK PinPoint technology
Because the light spot has a small diffusion angle, most of the light rays can hit the reflector, and the refraction of transparent objects can be ignored.
Founded in 1946, SICK has become a highly influential supplier of intelligent sensor solutions after years of development and accumulation. Its products are widely used in various industries, including packaging, food and beverage, machine tools, automotive, logistics, transportation, steel, airports, electronics, and textiles. SICK China currently has branches in Guangzhou, Shanghai, Beijing, Qingdao, and Hong Kong, forming an organizational structure and business network covering all major regions of China.
For more details, please visit www.sickcn.com or call our national customer service hotline at 4000 121 000.
