Top-down optical viewfinder

Abstract

1. The name of this design product: Top-down optical viewfinder. 2. Purpose of this design product: to assist camera framing. Framing is accomplished through an optical assembly consisting of a front plano-convex lens (or bi-convex lens) and a rear Fresnel lens. There is a 45-degree angle reflector between the lenses. When framing, the viewfinder is held at the photographer's waist and the photographer looks down to frame the scene. 3. The design key point of this appearance design product lies in the three-dimensional image. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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