| 摘要 |
An optical device (22) includes a case (30), which fits over at least a part of a mobile computing device (24) having first and second faces and including a light source (29), which emits a beam of illumination through an exit aperture, and a camera module (27), which captures images through an entrance aperture. Both the entrance and exit apertures open through the second face of the mobile computing device. A receptacle (31) in the case receives and positions a sample (56) in proximity to the second face of the mobile computing device within a field of view of the camera module. Illumination optics (36, 38) receive and turn the beam emitted by the light source so as to back-illuminate the sample while the camera module captures one or more images of the back-illuminated sample. |
