American scientists have found a way to turn a smartphone into a high-performance microscope that can observe red blood cells. The cost of this "transformation" is only $ 10. In addition, they also use daily household items to make spectroscopes for measuring different frequencies of light.
The first step is to prepare a piece of black material, such as a card, and then drill a small hole in it to act as an aperture.
Put the ordered glass ball or hemispherical lens with a diameter of 1 mm into the aperture, as close as possible.
After completing all the steps, your phone will look like this.
A spectrometer made of insulating tape, PVC pipe and a small grill can divide the light into different colors.
American scientists have found a way to turn a smartphone into a high-performance microscope at a cost of only $ 10. According to the method provided by them, we only need some tape, a rubber band and a small glass ball to turn the smartphone into a microscope with a magnification of 350x, which can be used to observe red blood cells. In addition, scientists use daily household items to make spectroscopes for measuring different frequencies of light.
Researchers say that making smartphones into microscopes is not only fun and easy, but patients in some remote areas of the world will greatly benefit from this creation. Theoretically, this simple microscope can be used to take pictures of skin infected areas, and the photos can be sent by email to doctors thousands of miles away to help them make a diagnosis. Microscopes used in laboratories usually cost thousands of dollars and are difficult to bring out of the laboratory.
The microscope transformed from a smartphone is by far the most compact and cheapest microscope. This microscope was developed by the physicist Sebastian Washman-Hogg of the University of California, USA, based on the previous design. The previous design is more fragile and requires more parts. Washman-Hogger simplified it by using a rubber band to fix a glass ball with a diameter of 1 mm above the iPhone camera. The magnification of the iPhone version of the magnifying glass reaches 350x. Due to the inability to focus, the photos taken need to be processed with the help of computer software.
The total cost of making this microscope is $ 20, but the researchers say that if plastic lenses are used instead of glass, the cost can be reduced to $ 10. At present, they are looking for ways to improve the quality of photos, and at the same time develop relevant software for determining blood oxygen levels and calculating the number of blood cells.
The prototype of the spectrometer for mobile phone is made of insulating tape, PVC pipe and a small grill, which can divide the light into different colors. In an interview with Wired magazine, Washman-Hogg said: "We can use near-consumer consumer electronics to make near-research-level devices, which surprised me. With the help of mobile phones, you can record anywhere And transfer data. In rural or remote areas, you can ask an occupational pathologist who is thousands of miles away to help diagnose your condition. "
Adogan Ozcan, an electrical engineer at the University of California, pointed out that this method is more incredible than the previous way of using a smartphone, just like a dream. He said: "This is an astonishing practice that surpasses the imagination of many people in the scientific community. We need to focus our attention on such creative designs and constantly test and improve them to save people Life. "Ozcan did not participate in this plan. The specific content of this research is published in "Public Science Library · Comprehensive".
Specific steps for making a smartphone version of the microscope:
1. Take out your smartphone, preferably a smartphone with a touch screen and manual focus.
2. Prepare a piece of black material, such as a card, and then drill a small hole in it to serve as an aperture.
3. Order a glass ball or hemispherical lens with a diameter of 1 mm, the cost is about 10 US dollars.
4. Put the lens into the aperture, as close as possible.
5. Use black tape to fix them on the camera of the phone, making sure they are right in the center of the camera. To do this, you need to cut a small hole in the black tape that is larger than the lens and smaller than the aperture.
6. Adjust the position so that it is in the center of the viewfinder.
7. Make sure you have enough light when shooting.
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