Eyepiece

Lab Five: Microscope and Simple Staining Introduction A microscope is a tool to examine enlarges image of small objects that are hard to study with the naked eyes. The light microscope, which was used in this lab experiment, is an instrument with two lenses and various knobs to focus the image. We will learn about the proper way to use and handle the microscope. Microorganisms are measured with an ocular micrometer, which is inserted into one of the microscope eyepiece. Micrometer serves as a scale or ruler, is flat circle of glass upon which are etched in equally spaced division. When placed in the eyepiece the line is superimposed may be calibrated by using a stage micrometer on which parallel lines are exactly 10um apart etched. By determining…

which allows the light and the image to enter the eye. Generally, a bigger ocular lens means more light reaches your eyes, producing a brighter image. A large ocular lens also makes it easier to maintain a full image if your hands move or shake. The ocular lens diameter is calculated as the ratio between the objective lens and the magnification. For example, in a 7x35 pair of binoculars the ocular lens is 35 divided by 7 which equals 5mm. For most hunting applications an ocular lens of 4mm or…

low-power it is the best to find an object just center it and then switch to the higher power. Lab Questions: 1. What is the difference between a simple light microscope and a compound light microscope? Simple Microscope Compound Light Microscope Simple microscope is used at s basic level, where is there is no rigorous requirement of research Due to an added lens to a compound one, professionals use this for research purposes There is single lens in simple microscope…

When light from an object enters the objective lens the lens will gather the light and refract it near the back of the telescope where the light rays will converge to a point (The focal point) the point of using a convex lens instead of a concave lens is due to convex lenses being able to converge light this diminishes the size of the image so that the light can fit into the eyepiece and due to the light rays continuing to travel past the focal point any image viewed past the focal point…

upright position not allowing the eyepiece to fall out. When placing the microscope down be sure to keep it at least 10 centimeters away from the edge of the table or desk, also have the arm of the microscope face you. When the microscope is in a safe place on the desk, look at the objectives on the microscope. These objectives are labeled by 10x and 40x. The “x” stands for times. So when it’s 10x that means it magnifies the object 10 times it’s normal size. Create a data table that includes the…

MBK – Lab Report Name: ___Melissa Callon _________________ Section: ___________________ Observing Bacteria and Blood Questions: @. A. List the following parts of the microscope and describe the function of each 1. Eyepiece: x10 or x15 lenses used to look through to view objects within the viewing field 2. Eyepiece Tube: holds the eyepiece 3. Main Tube: moves vertically for focusing 4. Coarse Adjustment: Used for the initial focusing of the viewing…

main lens, the objective lens, which is a convex lens that are thicker in the middle than the edges for different refraction of light and goes at one end of the tube, and the eyepiece for viewing, on the opposite end, which is also a convex lens. Light moves from air to glass, which is more optically dense, and slows down and bends towards the normal, when light travels out of the lens, it speeds up and moves away from the normal. Convex lenses are also called converging lens because they…

Orion Space Probe 3” telescope for sale … Perfect for checking out the 95 year old neighbor lady next door if you are that kind of a degenerate sicko. For the rest of us, this telescope gives a clear view of the moon and other celestial bodies. This telescope comes with the following additional goodies: The full size aluminum stand folds up to be not only lightweight but compact. I have found this to be a life saver when I have had to grab the whole thing and run for it because the farmers…

A light microscope works like a telescope using glass lenses to reflect light, which magnifies images which are naked to the human eye such as cells and dust. The lens closest to your eye is called the eyepiece lens. This usually has a magnification of x10. Objective lenses are lenses of several different strengths which magnify the image. The stage is the place where the microscopic slide sits. This is held in place by the clips. The light source (can be a mirror or a bulb) projects light onto…

depends on the amount of light collected by the objective lens. How much light can be collected corresponds to the area of the objective lens. So the bigger the objective lens, the more light can be collected. If you want to increase the light gathering power by 4, you can double the diameter of the lens. How bright the image is depends on how an image can spread over a big area of a lens.The bigger the area, the less bright an image, and the smaller the area, the brighter an image would be. In…