Cell phone microscope

thingiverse

The device combines a sample, lens, and smartphone, forming an effective microscope setup. Many online tutorials demonstrate similar configurations, but I sought to create a robust supporting framework. The lens measures 7mm in diameter and originates from an inexpensive laser pointer. To secure the sample, I employed a film slide holder, which effectively holds even fine particles like hair together. Additionally, there is ample space for positioning material that diffuses light uniformly behind the sample. A piece of diffuser was cut from an old broken LCD monitor to fulfill this requirement. The 3D model incorporates a 45-degree slope, allowing attachment of a mirror and enabling placement of a horizontal light source, which greatly conserves space. Any suitable LED light can be utilized as the light source; I opted for a 4-watt Ikea desk lamp, considering it to be the minimum acceptable illumination. The phone holder is compatible with an old iPhone 3G but can be easily adapted using SolidWorks to accommodate various smartphones and camera positions.