Foldscope 1.0 uses a folded structure to position a small lens and specimen. Its simple body makes a portable tool for looking closely at the world.
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A folded paper structure becomes a microscope for examining a thin piece of leaf. Foldscope holds a small lens opposite a specimen and uses its paper body to set the spacing. It looks different from a large desk microscope, but follows the same optical principle: light passes through the specimen into a lens.
The manufacturer's guide to the original 1.0 model specifies a 140× lens. A small glass sphere is supported by paper components and magnets. Its short working distance suits a thin, flat structure. After placing a specimen, the user adjusts its distance from the lens to bring it into focus.
With the specimen illuminated from behind, the user looks through the lens. Slightly moving or flexing the body adjusts focus; sliding the specimen holder brings another area into view. The field of view is small. A thin, light-transmitting section is more useful than an entire large leaf, while thick or opaque material is harder to examine this way.
A smartphone is optional. Foldscope is designed for direct viewing, but aligning a phone camera with its lens can record an image. Magnets hold optical parts or attach components. The maker also explains how to use an ordinary phone camera without a dedicated app.
“Paper microscope” describes the body, not the lens. Simple components and a folding assembly make the instrument easier to transport and access. Other models now exist, with different magnifications and contents. The original model's assembly video and specifications should not be taken as those of every later version.
Users share observations in the Microcosmos community, comparing photographs and specimens. The surface, edge, and a thinly peeled section of the same leaf can show different things. Holding the folded body and adjusting its focus makes specimen preparation as important as magnification itself.
Related video: How to assemble your Foldscope
Produced by: Foldscope Instruments
https://www.youtube.com/watch?v=L-tFJRGQBIo
Image description: Participants assembling Foldscopes with paper components and slides spread across a table
Image source: Source: Prakash Lab / Stanford University · Foldscope assembly activity
https://prakashlab.stanford.edu/projects/foldscope
Sources and editorial notes
Foldscope Instruments · How to assemble your Foldscope
Video channel Foldscope Instruments
Editorial note: Factual statements are based on the sources above; interpretations reflect MUADAILY's editorial perspective. Image: Source: Prakash Lab / Stanford University · Foldscope assembly activity.
Photograph / image source
Source: Prakash Lab / Stanford University · Foldscope assembly activity
Image description: Participants assembling Foldscopes with paper components and slides spread across a table
Original aspect ratio preserved; resized and reformatted for web display
Machine-translated from Korean. Read the original.
