Patent ID: 9618662
Date: 2017-04-11
CPC Classifications: B62J,G02B

Claim:
1. A forward viewing device for a cyclist having a head down position to view a scene forward of a cooperating bicycle, the device comprising: a prism having a first surface facing forward in a substantially vertical orientation, a second surface, and a third surface in the line of sight of the cyclist; the prism being a Littrow prism; the first surface having a first surface area, the third surface having a third surface area, and either (1) the first surface area being larger than the third surface area and the first surface being the internal reflection surface, or (2) the third surface area being larger than the first surface area and the third surface being the internal reflection surface; only the second surface having a reflective coating; the prism fixed to a support; and, the support connected to the bicycle forward of the cyclist; so that an image of the scene is substantially normally incident upon and transmitted through the first surface, reflected by the second surface and the internal reflection surface, is substantially normally incident upon and exits the prism through the third surface, and is transmitted to the cyclist as a normal image.