LAB 3 microscope

Head (body tube)

Supports ocular lenses.

Arm

Connects head to base.

Base

Bottom that supports microscope.

Ocular lens (eyepiece)

Lens you look through, magnifies 10x.

Rotating nosepiece

Round disc supporting objectives, rotate to change objective facing slide.

Objective lenses

Hang from nosepiece of different sizes and magnifications.

Stage

Platform holding slide, hole in center allows light through.

Slide clips

Securely holds slide on stage.

Mechanical stage control (XY control)

With slide clipped in place, these knobs move stage forward and back; slide left and right.

Condenser

Lens below stage that concentrates light before it shines on the slide.

iris diaphragm lever

Regulates light from condenser as you move lever under stage, opening and closing iris diaphragm.

Coarse adjust/focus knob

Raises or lowers the stage a large distance. Only use with scanning objective!

Fine adjust/focus knob

Raises or lowers stage small distance. Best used with low or high power objectives.

Substage light

Light source in base

Rheostat

Rotating wheel that adjusts light intensity

Magnification

object looks bigger

Resolution

image is also clarified with higher magnification.

inverted

flipped upside down and backwards compared to the specimen on the slide. 

parfocal

the image is clearly focused at the scanning, shortest objective, all the longer objectives will also fit in the space to the stage with only using fine focus to adjust.