Digital Microscope Parts

A handheld USB digital microscope on its stand, with the inside of its tip enlarged.

Tap any part to read, rename or leave it out

1 2 3 4 5 6 7 8
More options

Each numbered ring is a button. Use the arrow keys to move between them and Enter to choose. Names are read out in Study, and once a part is answered.

All 8 parts on the diagram

Show the list

The microscope 5

  1. Lens It makes a bigger picture of the object.
  2. Focus wheel Turn it to make the picture sharp.
  3. LED lights Small lamps around the lens. They light up the object.
  4. Snapshot button Press it to take a picture.
  5. Image sensor (camera) A chip that turns the light into a digital picture.

Stand, cable and screen 3

  1. USB cable It sends the picture to the computer. It also brings power.
  2. Computer screen (monitor) The picture shows here. A digital microscope has no eyepiece.
  3. Stand It holds the microscope still over the object.

How this list was compiled: Every name checked on 2026-10-02 and kept only where at least two of these use it. (1) Wikipedia, USB microscope, https://en.wikipedia.org/wiki/USB_microscope , with Digital microscope, https://en.wikipedia.org/wiki/Digital_microscope : the macro lens, the built-in LED light sources that surround the lens, the sensor of the camera, the USB port of the computer, the computer's display that shows the image in place of an eyepiece, the small stand. (2) A telescope maker's instruction manual for a handheld digital microscope, full text at https://archive.org/details/manualzilla-id-7226715 : USB cable, snapshot button, focus knob, stand, built-in digital camera, built-in LED illuminator, monitor. (3) A second maker's user instructions for a USB digital microscope, full text at https://archive.org/details/manualzilla-id-5709593 : focus wheel, snapshot button, image sensor, the white LEDs, the lens, the USB port of the computer, the screen. (4) A learning-toy maker's user guide for a flexible digital microscope, full text at https://archive.org/details/manualzilla-id-7016308 : focus wheel, LED lights, snapshot button, image sensor, lens. (5) An optics maker's 2011 catalog, the page on its handheld digital microscope, full text at https://archive.org/details/manualsonline-id-e4b0658c-3baf-4b3c-86df-ee0ba90865de : snapshot button, USB cable, LED lights, the screen. Focus wheel is the name in (3) and (4), and USB cable in (2) and (5). Labels, hints, detail lines and position notes were written for this site. Licence: own work

The drawing: Drawn for this site on 2026-10-02 from plain geometry; nothing traced. Licence: own work

How it works

The digital microscope parts are named here on a handheld USB microscope: the lens, the image sensor, the LED lights, the focus wheel and the snapshot button. Tap a part to read what it does.

Read the full guide

From the object to the screen

The LED lights shine on the object. The lens makes a bigger picture of it on the image sensor, a chip that turns light into a digital picture. The USB cable carries the picture to the computer, and it shows on the screen.

The parts you touch

Turning the focus wheel makes the picture sharp. The snapshot button takes a picture. The stand holds the microscope still.

  • The round inset shows the tip of the microscope cut open and drawn larger.

Questions and answers

What are the parts of a digital microscope?

A lens, an image sensor, LED lights around the lens, a focus wheel, a snapshot button, a USB cable and a stand. The picture shows on a computer screen, so there is no eyepiece.

What are the digital microscope parts and functions?

The LED lights light the object. The lens enlarges it. The image sensor turns the light into a digital picture. The focus wheel sharpens it. The snapshot button saves a picture. The USB cable sends it to the computer screen.

How is a digital microscope different from a light microscope?

A digital microscope has no eyepiece to look through. A digital camera takes its place, and the picture goes to a screen, where several people can see it together.

Do all digital microscopes need a computer?

No. A USB microscope shows its picture on a computer's screen. Other digital microscopes have a screen of their own built in.