A color sensor is an electronic component that detects the color of an object’s surface and converts color information (such as RGB values, hue, saturation, etc.) into an electrical signal output. Its core function is to recognize, distinguish, and judge colors.
Color Sensor Principle
The core principle of a color recognition sensor is based on the color characteristics of light reflected from an object’s surface. When a light source shines on an object’s surface, the object reflects light of a specific wavelength according to its own color characteristics. This reflected light is received by the photosensitive element in the color recognition sensor and converted into an electrical signal. Subsequently, the signal processing circuit amplifies, filters, and digitizes these electrical signals, and then uses specific color recognition algorithms (such as RGB algorithm, HSV algorithm, etc.) to accurately identify and analyze the object’s color.
Product Type
1. Chinese Version Integrated Color Mark Sensor
Features:
· 1.5*7 linear spot size, suitable for various application environments;
· Long detection distance, detection range 18-28mm;
· High anti-shake performance by adjusting accuracy to eliminate the influence of shaking on the detected object;
· Accurate identification at the edge of the object or the critical position between two different colors, stable and reliable detection;
· Dual detection modes: color and color mark, significantly superior performance to ordinary color marks;
· Two-point setup, simple and convenient, compact size, suitable for installation in different spaces.
2:High-precision intelligent digital color sensor
Features:
• Accurately identifies over 3000 colors
• 8-channel design allows simultaneous detection of 4 or 8 colors, saving space and cost;
• Compatible with dedicated color probes and all fiber optic probes with multiple detection modes, suitable for various applications;
• Suitable for detecting objects that do not emit light themselves;
• Micro-color difference recognition function enables subtle color detection
3: Digital color sensor
Features:
· One-button intelligent setting for accurate color recognition.
· Equipped with a projection element integrating red, green, and blue LEDs, meeting diverse color mark detection needs;
· Offers two detection modes: color mark mode and color mode, offering significantly superior performance compared to ordinary color marks;
· Coaxial reflective optical system and an ultra-fine 1mm x 6mm light spot enable high-precision detection.
5:Long-distance color sensor (EM-D7D series)
Features:
* **Flexible and Adjustable Spot Size:** The standard model features a spot size adjustment knob, allowing for continuous adjustment of the spot size within the range of 4.5~20mm.
* **Intuitive OLED Screen Data Display:** The OLED screen provides an intuitive and easy-to-use interface for displaying data, allowing users to easily view test results at any time.
* **Comprehensive Solutions for Special Color Detection, Meeting Various Detection Needs:** The small spot type supports single-spot and dual-spot detection. By setting the spot at different positions, it accurately captures color information from different parts of the target object, enabling multi-angle observation.
Traditional red LED photoelectric sensors can only detect differences in light intensity and can only receive light within the red wavelength range. The EM series uses a white LED light source and has full-spectrum analysis capabilities, receiving all wavelengths of visible light. It can detect subtle color differences based on the appearance color of the object being detected.
Application Case: Industrial Product Sorting.
In automated production lines, different colored parts and packages (such as plastic granules, bottle caps, and electronic components) are sorted to replace manual sorting and improve efficiency.
Medical drug sorting:
Color sensors can efficiently and accurately identify the color of pills, ensuring the correctness and integrity of drug packaging, and assisting in quality control and traceability management
Printing Color Matching and Calibration:
During the printing process, sensors monitor the color of the printed object in real time, compare it with a standard color card, and automatically adjust the printing press parameters to ensure color consistency between batches.
As pioneers in color recognition within industrial automation, LE raun Tech’s color mark sensors are widely used across various industries due to their high precision and rapid response. In the future, driven by technological innovation and intelligent development, the performance of LE raun Tech’s color mark sensors will be further enhanced, and their application areas will expand even further. We have every reason to believe that LE raun Tech’s color mark sensors will play an even more important role in advancing industrial automation and intelligent manufacturing, contributing significantly to the development of modern industry.