Abstract
The design of light source is crucial for the availability of palmprint, hand shape and high quality image of Handmetric identification. After the small (small lighting area, Gao Liangdu) LED light source is added at the front end of an appropriate optical component, it may assist to redistribute the LED flux in receiving specific distant source within a specific range. It may also favor in reducing the volume of light source. Such can be done during the improvement of the uniformity of illumination. The light’s utilization of surface is also objective. This paper analyses in detail of the track’s changes before and after the light through optical components by comparing the use of flux distribution and optical component. The results show that the uniformity is improved after luminous flux component’s distribution.
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© 2014 Springer International Publishing Switzerland
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Tang, Y., Yuan, W. (2014). An Effective Optical Component to Increase the Illumination Uniformity of Extended LED Light Source. In: Sun, Z., Shan, S., Sang, H., Zhou, J., Wang, Y., Yuan, W. (eds) Biometric Recognition. CCBR 2014. Lecture Notes in Computer Science, vol 8833. Springer, Cham. https://doi.org/10.1007/978-3-319-12484-1_46
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DOI: https://doi.org/10.1007/978-3-319-12484-1_46
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-12483-4
Online ISBN: 978-3-319-12484-1
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