Zoom lens

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…

The Effects of My Corneal Ulcer I was a contact wearer and I wore contacts for about four to five months until something execrable occurred. I thought it was just a common pink eye but, later found out that I had contacted a corneal ulcer which I knew would probably change my life forever. The use of contact lenses resulted in a corneal ulcer that contributed to the loss of my eyesight. I have regained my eyesight but I still have trouble seeing. If I didn’t go to the…

Introduction A lens is an object that forms images by refracting light. The images formed can be magnified, real and virtual depending on what lens used and the set-up of the lens system. There are two types of lenses, converging and diverging lenses. Converging lenses cause parallel light rays to converge to a point. Diverging lenses cause parallel light rays to diverge. Typically converging lens are thicker in the middle and diverging lenses are thinner in the middle. Lenses are used for many…

Micolens are small lenses with a diameter smaller than 1 mm, they can work by diffraction, refraction or a combination of these two. When arranged regularly on a single substrate they form a microlens array. In order to be considered a good quality lens, microlenses must have qualities such as to low wavefront aberrations, consistency of focal length and pitch across the array, durability and low price. (Daly 2001) Microlens arrays have several applications, such as CCD arrays, digital…

The cornea, or lens, is a transparent covering of material at the front of the eye, which creates an image of an object by mixing light in a process known as refraction (Klein). During refraction the light rays pass through the cornea and pupil and hit the lens that creates an image on the retina. The retina then sends the image to the optic nerve that makes you able to see. The eye can work like this because it has its own lens that is able to focus on an image that is…

has come, scientists have created a type of bionic lens that allow humans to zero in on the tiniest of objects without the assistance of a third item such as the microscope. For hundreds of years, scientists have been using the microscopes to make major discoveries such as proving the existence of minuscule living organisms that cannot be seen to the naked eye. However due to the physical laws restricting light to pass through conventional lens to see these small items, we had begun to be…

if you place a lens at the right distance between the object and the photographic film, scattered light from each point of the object is brought back together (focused) on the film and forms an image. You would also have to block out extraneous light.…

Traditional lens are the typical, rounded design of contact lenses, which can correct near-sightedness (myopia) or farsightedness (hyperopia). Google contact lens are smooth spherical cell, they constructed a new LCD-based contact lens display, which also corrects myopia and hyperopia. In term of spherical, both of these lenses provide somewhat same type of treatment and corrections. Improves health As technology moves further into health treatment, and advanced digital diagnosis Google lens…

The American, representing males in the situation, is seen as holding all power and control, which reinforces a patriarchal system. Depending on how a reader looks at the text through a feminist lens, the meanings can vary. One way to look at the plot would be through an anti-feminist lens as the girl is seen as powerless, weak, and dependent upon the American. This anti-feminist message can be seen through his treatment of her. He does his best to manipulate her into giving in to his…

Originating in Greek mythology, werewolves have been depicted as some of the most aggressive monsters in history. The tale of the first werewolf, then called “Lycaon” is found in Homer’s The Iliad. The beast, portrayed as a half-man half-wolf, highlights aggression and primitive instincts in humanity. Though rarely provoked, nearly every modern account of werewolf sightings involve the beast attempting to attack witnesses. Whether these sightings are fact or fiction, society has a fascination…