Explanation for homemade digital microscope's optical systems?

In summary, a homemade digital microscope typically employs optical systems that combine basic lenses to magnify images and a digital camera to capture and display them. The optical components often include a convex lens for focusing light and a tube to hold the lens at an appropriate distance from the specimen. The arrangement allows for adjustable magnification and improved image clarity, enabling users to explore microstructures effectively. Additional features may include lighting elements to enhance visibility and stability mechanisms to secure the setup during use.
  • #1
harundurmush
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TL;DR Summary
I need some resources or explanations for how to create the microscope with raspberry pi camera. The optical system is hard to understand for me.
Some resources mention about eyepiece lenses for human-eye microscopes (not digital ones). Also some sources says that removing the lens from the camera module of raspberry pi and combine it with a objective lens such as TREEYE 15.3 mm is enough to create optical system for microscope. What is the reason and simplest explanation about this?
 
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  • #2
Welcome to PF.

Can you post links to your reading about this question? That would make it easier for us to try to help.

Also, what microscope specifications are you shooting for? What magnification power, depth of field, object distance, etc?
 
  • #4
Per the link:

The microscope has a simple operation principle based on changing the magnification and the focus by adjusting the relative distances between a camera, a single objective lens and a sample.

Unfortunately I can't find anything about the objective lens, either in the link itself or the linked youtube video from the page. You might use the lens that was removed from the camera module, but I really don't know.
 
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FAQ: Explanation for homemade digital microscope's optical systems?

What are the basic components needed to build a homemade digital microscope?

To build a homemade digital microscope, you typically need a few essential components: a digital camera or webcam, a lens system (such as a convex lens), a light source (like an LED), a stable platform to hold the components, and a way to focus the lens on the specimen. Additionally, you may require a computer or a screen to display the captured images.

How do I choose the right lens for my homemade digital microscope?

Choosing the right lens involves considering the magnification and the working distance. A common choice is a convex lens with a focal length between 50mm to 100mm for low to medium magnification. The lens should be able to focus on the specimen while allowing enough space for light to illuminate it. Experimenting with different lenses can help you find the best one for your needs.

How can I ensure proper lighting for my digital microscope?

Proper lighting is crucial for clear imaging. You can use a bright LED light positioned at an angle to minimize glare and shadows. A diffused light source can help distribute light evenly across the specimen. Additionally, adjusting the distance of the light source can help achieve the best illumination without overwhelming the image.

What software do I need to use with my homemade digital microscope?

To capture and analyze images from your homemade digital microscope, you can use various software options. Simple webcam software can suffice for basic image capture. For more advanced features, consider using software like OBS Studio for streaming or image capture, or image analysis software like ImageJ for detailed examination and measurements of the specimens.

How can I stabilize my homemade digital microscope setup?

Stabilizing your setup is essential to avoid blurriness in the images. Use a sturdy base, such as a wooden or metal platform, to hold the camera and lens in place. You can also use clamps or brackets to secure the components. Ensuring that the microscope is on a flat surface and minimizing vibrations will help maintain stability during use.

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