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2. Optical microscope - Wikipedia

   en.wikipedia.org/wiki/Optical_microscope

   Adjustment knobs move the stage up and down with separate adjustment for coarse and fine focusing. The same controls enable the microscope to adjust to specimens of different thickness. In older designs of microscopes, the focus adjustment wheels move the microscope tube up or down relative to the stand and had a fixed stage. [citation needed]

3. These Student-Friendly Microscopes Are Our Top Picks ... - AOL

   www.aol.com/editor-approved-microscopes-top...

   It has a sturdy, all-metal body with an enamel finish, five magnification settings up to 1000 times, high-quality coated optical glass, plus coarse and fine combo focus knobs on both sides for ...

4. Inverted microscope - Wikipedia

   en.wikipedia.org/wiki/Inverted_microscope

   The stage of an inverted microscope is usually fixed, and focus is adjusted by moving the objective lens along a vertical axis to bring it closer to or further from the specimen. The focus mechanism typically has a dual concentric knob for coarse and fine adjustment.

5. Traveling microscope - Wikipedia

   en.wikipedia.org/wiki/Traveling_microscope

   E—eyepiece, O—objective, K—knob for focusing, V—vernier, R—rails, S—screw for fine position adjustment. A travelling microscope is an instrument for measuring length with a resolution typically in the order of 0.01mm. The precision is such that better-quality instruments have measuring scales made from Invar to avoid misreadings due ...

6. Condenser (optics) - Wikipedia

   en.wikipedia.org/wiki/Condenser_(optics)

   The focus of the first lens is traditionally about 2mm away from the plane face coinciding with the sample plane. A pinhole cap can be used to align the optical axis of the condenser with that of the microscope. The Abbe condenser is still the basis for most modern light microscope condenser designs, even though its optical performance is poor.

7. Dual speed focuser - Wikipedia

   en.wikipedia.org/wiki/Dual_speed_focuser

   The fine focusing knob connects to the input axle while the fast focusing knob connects to the holder shelf. On the other side, the axle from the Crayford focuser is connected to the holder shelf. When one rotates the fine focusing knob, the three balls are driven by the input axle and rotate along the inner circumference of the case at a ...

8. Hotel Worker Accused of Selling Liam Payne Drugs on Night of ...

   www.aol.com/hotel-worker-accused-selling-liam...

   A hotel worker accused of supplying drugs to Liam Payne before the One Direction singer’s death in Buenos Aires on Oct. 16., 2024 has reportedly turned himself in to the police.. Ezequiel David ...

9. Level (optical instrument) - Wikipedia

   en.wikipedia.org/wiki/Level_(optical_instrument)

   The complete unit is normally mounted on a tripod, and the telescope can freely rotate 360° in a horizontal plane.The surveyor adjusts the instrument's level by coarse adjustment of the tripod legs and fine adjustment using three precision levelling screws on the instrument to make the rotational plane horizontal.