Question
Use of the Complete the table below which summarizes the similarities and differences between the answer the compound microscope. Use your introduction and internet to the questions. Table 2: parison of different aspects of the stereomicroscope and compound microscope. Compound Microscope Stereomicroscope Range of Magnification (total magnification of microscope) Direction of illumination Relative size of specimens that can be viewed Type of detail that can be viewed Image orientation Is image viewed 3-dimensional or 2-dimensional?
Explanation / Answer
large working distance from the specimen.
large depth-of-field.
large field-of-view
microscope stereomicroscope compound microscope magnification 50x--- 300x magnification1000x
incident light illumination (light reflected off the surface of the sample is observed by the user), although it can also be combined with transmitted light in some instruments. It uses
two separate optical paths with two objectives and two eyepieces to provide slightly different viewing angles to the left and right eyes. normally unobtrusive when the lit end is near the specimen. Light is passed through the sample . lens close to the object being viewed to collect light (called the objective lens) which focuses a real image of the object inside the microscope . That image is then magnified by a second lens or group of lenses (called the eyepiece) that gives the viewer an enlarged inverted virtual image of the object useful in observing whole insects or plants,rocks, etc useful in viewing the much smaller individual cells ,section of plant or animal tissue. stereo microscopes even allow you to see the object stereoscopically (3 dimensionally). Compound microscopes are not capable of delivering a (3D) image Depth of field is the distance between the nearest and farthest points in a sample that appear sharp in the viewed image.
large working distance from the specimen.
large depth-of-field.
large field-of-view
The total magnification is calculated by multiplying the magnification of the ocular lens by the magnification of the objective lens.
