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Windshield Wedge Angle and Layer Thickness Measurements
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marcus, Michael A. Ignatovich, Filipp V. Lumetrics |
| Copyright Year | 2016 |
| Abstract | In the February 2016 issue of Photonics Spectra, Heads-Up-Display Systems (HUD) for the automobile windshield were reviewed. The focus of this article was on the image display unit and on the types of data and features which are displayed. The present article describes the types and layer structures involved in the construction of the windshield itself and the most common methods of getting ghost free images from automotive HUD displays. This article then describes windshield metrology and more particularly methods to measure the thickness profiles of all of the layers of the windshield simultaneously. As described below, a small wedge angle has been found useful in minimizing ghosting in HUD displays. The metrology system described is also shown to be capable of determining the wedge angle as a function of location on the windshield with a high degree of accuracy as well as determining how much wedge is in each layer. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.lumetrics.com/wp-content/uploads/2016/06/Wedge-Angle-Measurements-for-HUD-displaysfinal.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
