An optical test apparatus includes a three-dimensional dome, light sources and a control unit. The three-dimensional dome covers a field of view of an image acquisition device. The image acquisition device is a test target device. The light sources are dispersedly arranged on the three-dimensional dome and generate a predetermined image on the three-dimensional dome. The first control unit controls the light sources.

A shovel that has an upper container and a closed lid. The lid is hinged so that once a load of gravel has been dug, the lid can be closed, and the shovel brought to the surface with the load of gravel largely intact. The device has a typical shovel bed onto which side panels have been added. A lid, shaped to fit the shape of the shovel, is attached to the shovel by a hinge. A curved bracket holds a spring that also attached to the lid to ensure the lid closes tightly. The shovel has a handle, as is typical for the standard shovels. However, the invention includes a pivoting handle attached to the straight handle that has a small cable attached. The other end of the cable attaches to the lid. The pivoting handle is used to open and close the lid.