An imaging device includes an optical system, a camera housing defining an opening with an interior storage space, and a flash mechanism connected to the housing. A first stage quantitative calculation screens dyes that possess an absorption band that can be matched to a laser that is suitable for plastic welding. In one form, the actuation system includes a four bar linkage. ; and a method for screening and a screening kit for compounds promoting the function of the protein. The invention further includes a plurality of light emitting devices for creating a higher density beam of light with a prism for aligning the beams of light along an axis toward the lens, wherein the plurality of light emitting devices include a green light emitting device, red light emitting device and blue light emitting device.