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Thomas I. Bradshaw
Researcher at 3M
Publications - 16
Citations - 460
Thomas I. Bradshaw is an academic researcher from 3M. The author has contributed to research in topics: Point source & Visibility. The author has an hindex of 12, co-authored 16 publications receiving 460 citations.
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Patent
Integrated retroreflective electronic display
TL;DR: In this article, an integrated retroreflective data communication display for visual and electromagnetic communication is described, where an antenna network is integrated within the license plate for electromagnetic communication and may be connected to external electronic modules.
Patent
Internally illuminated retroreflective sign
TL;DR: In this paper, an internally illuminated sign employs retroreflective sheeting with optically transmissive bonds between cover layer and base layer, thereby making the sign suitable for applications where visibility of the sign is required if the internal illumination source fails.
Patent
Directionally imaged sheeting
TL;DR: In this article, the back surface of a transparent microsphere is covered by a layer of transparent material, and axial markings are disposed at the back of the transparent material as an image.
Patent
Microlens sheet containing directional half-tone images and method for making the same
TL;DR: A sheet containing an integrated-directional, half-tone image may contain one or more such images as mentioned in this paper, and also a method for forming such images in microlens sheetings comprising directly a highly collimated light through an interposed halftone mask.
Patent
Retroreflective assembly and process for making same
TL;DR: In this paper, a retroreflective assembly consisting of a transparent globule having a first, uncoated part-spherical surface portion for reception of incident light; a second, substantially flat surface portion opposite the first surface portion; and a third, toroidal surface portion intermediate the first and second surface portions.