Well.. Demand on imaging small structures is widely increasing. In 3rd world countries diagnosis of parasites like malaria is becoming more and more important. Also judging over the water quality is of great importance. General public has hardly any money to spent for those kind of technologies, so why not using things which are around already? I’m not the first one taking this into account, but want to give some inspirations on how a smartphone microscope could look like.
This one was also thought as a present for someone who has a BLACKBERRY PASSPORT, but the upper case for the smartphone can be exchanged to any other case you find. You could either glue or use the two drills to attach it to the main body.
Here you can see the working Z-stage using the Zoom lens of the WIFI-driven digitial still camera
Realizing the Microscope using a Smartphones camera makes removing all lenses necessary, thus one needs to destroy a usually working phone.
Even though it’s open-source it’s really expensive. So why not finding a solution which still uses a smartphone, but only for processing raw data which is coming from a 3rd party device. Looking for a good solution having in mind, that the pixelsize should be as small as possible and accessible by a smartphone I’ve found the Sony QX 10 digital still camera. „Holoscop V3 – Sony Wifi-Cam as lensless Microscope (R.I.P)“ weiterlesen
So next Generation Holoscope is coming. And: It looks promising! Everything’s open-source. The concpet will work as follows:
- Raspberry Pi acts as a server; It handles communication between the Smartphone and the Hardware-stuff which is: Synchronisation of the Camera/Illumination Pattern, Driving the motor and sending the images to the phone
- The Smartphone shows a live-view of the live-stream coming from the Picamera and gives the chance to setup stuff like ISO, Exp-Time, etc. Triggering an acquisition set is also possible; It will also do reconstruction processing as it has – at least in my case – a better CPU/GPU than the PI.
- So far a router is needed as a Peer-to-peer Communication is not implmented yet
- Camera Sensor is the one from the PI-Camera module
Using an LCD-Backlight from any old display and a cheap china power-bank one can build an Iphone Photo Dia/Slide scanner!
This „THING“ can be downloaded from here:
I stopped counting. Each iteration or revision of the Holoscope gave me troubles. This release looks promising. A raspberry creates a server and streams the camera to an android device.
The mobile-phone send and recieves http-requests and downloads the images from the Raspi. The first stream with a source-shift looks like that:
I’ll go into the details soon!