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The figure below shows the area of the microscope considered to be the body of the microscope. If you were to open the body of the microscope you would find a mirror or prism depending on the type and quality of the microscope. The prism or mirror is used to reflect the light and reorient the image by making it appear right side up.
Jul 7, 2020 · A plane mirror is a mirror that has a flat reflecting surface without any inward or outward curve. A ray of light falling on a plane mirror is reflected at the same angle as the angle of incidence. As a result, the image formed by the mirror is sharp and undistorted. This image is not real but virtual because the image formed behind the mirror ...
Figure 2.9.3: (a) Galileo made telescopes with a convex objective and a concave eyepiece. These produce an upright image and are used in spyglasses. (b) Most simple refracting telescopes have two convex lenses. The objective forms a real, inverted image at (or just within) the focal plane of the eyepiece.
The use of a mirror instead of a lens eliminates chromatic aberration. The concave mirror focuses the rays on its focal plane. The design problem is how to observe the focused image. Newton used a design in which the focused light from the concave mirror was reflected to one side of the tube into an eyepiece [part (a) of Figure 2.44].
- Specimen control - hold and manipulate the specimen stage - where the specimen rests clips - used to hold the specimen still on the stage (Because you are looking at a magnified image, even the smallest movements of the specimen can move parts of the image out of your field of view.)
- Illumination - shed light on the specimen (The simplest illumination system is a mirror that reflects room light up through the specimen.) lamp - produces the light (Typically, lamps are tungsten-filament light bulbs.
- Lenses - form the image objective lens - gathers light from the specimen eyepiece - transmits and magnifies the image from the objective lens to your eye nosepiece - rotating mount that holds many objective lenses tube - holds the eyepiece at the proper distance from the objective lens and blocks out stray light.
- Focus - position the objective lens at the proper distance from the specimen coarse-focus knob - used to bring the object into the focal plane of the objective lens fine-focus knob - used to make fine adjustments to focus the image.
Dec 14, 2022 · Mirror. The lower end of the arm or the pillar has a mirror fastened to it. On one side is a regular mirror, and on the other is a concave mirror. It is used to reflect light into the microscope for a sharper view of the specimen. A compound microscope primarily makes use of concave mirrors. Plane mirrors are occasionally also used.
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The quality (smoothness) and flatness of optical surfaces is one of the primary factors to consider when designing mirrors for specific applications. When a plane wavefront is reflected from a mirror surface, the actual distortion produced in the wave can range from one-half to twice the value of the surface flatness.
