This third-generation OSRAM IRED for iris recognition meets another need for this application: Ideally, the difference in brightness in the camera image should only come from the iris, and the illumination gradient does not additionally create a difference in brightness. This means When measuring the iris, the software only needs to correct a small amount of artifacts. With the SFH 4787S, OSRAM has developed a planar light emitter, and the optimized reflector and lens achieve an extremely stable emission beam intensity.
In addition, the SFH 4787S is almost identical to its predecessor, the SFH 4786S. Both products are based on the compact 3.5 x 3.5 x 1.6 mm large Oslux package. The 810 nm (nm) wavelength provides high contrast images for all eye colors. The emission direction is tilted by 8° and the emission angle is ±18°. When the current is 1A, the high-efficiency emitter has a light output of 720 milliwatts (mW) and a radiation intensity of 1,000 mW/sterameter (mW/sr).
Program Features Iris recognition is currently the safest and most accurate identification technology. Iris recognition technology determines people's identity by comparing the similarities between iris image features. The core step is to use pattern recognition, image processing and other methods for human eyes. The iris features are described, matched and categorized for automated personnel identification. The new SFH 4787S infrared LED from OSRAM Opto Semiconductors emits planar light for extremely uniform illumination, simplifying access control applications and enabling iris scanners to Easily detect the unique iris in the eye.
