Optics

Optic Neuritis is a condition where the optic nerve, which carries visual information from the eye to the brain, becomes inflamed. Most of the damage is done to the protective myelin sheath that surrounds the nerve, which is vital for good vision. A few symptoms that occur to people who have Optic Neuritis are: distorted color vision, blurriness, pain, and even vision loss. During a routine eye exam, a doctor will look for signs of Optic Neuritis by checking the eye pressure. The eye will be measured and the pupils will be dilated in order to get a better view of each of the eye’s individual interior structures. If one does have Optic Neuritis, an MRI will be performed and it would include the special images of the optic nerve, leading to possible…

ECE-669c INDEPENDENT SUDY ON FIBER OPTIC SENSORS Mr. Prasanna M.Thawale School of Computer science and Engineering, California State University Northridge, Northridge-91324. Independent Study On Fiber Optic Sensors  Overview: Term: Fall-2014 Guide: Prof. Nagwa Bekir Topic: Fiber Optic Sensors .  Introduction: Fiber optic sensor since their emergence have been a sector of keen interest for researchers because of their specific and exclusive characteristics thus resulting into the…

Prior to Ibn Al-Haytham, the accepted principle for optics originated from the Greeks and stated that the eye gives off light itself to produce images of objects . However, Al-Haytham considered situations in the real world that simply didn’t agree with the Greek findings, such as why objects like the moon can’t be illuminated from great distances. Al-Haytham formulated that the eye is instead a receptor of light, and that light is dispersed and diffused in geometric patterns. This is one of…

CONSIDER WHEN BUYING HUNTING OPTICS Hunting optics are essential accessories to ensure shooting accuracy for rifle shooters and hunters. There many quite many different options for hunters: scopes, binoculars, range finders or monoculars. They can be really expensive, so make sure you know where and how to choose the best product you need. For example, reading rifle scope reviews is a good way to start if you want to get to know about this type of hunting optics. Before going into details…

Optical Fibres By Jaydan Fibre optics are wires made of pure strands of glass or plastic spliced together (weaved together). These wires are as thin as strands of hair so their can be millions of them in a fibre optic cable. The wires are in bundles called optical cables and are used to transmit digital information over long distances. Fibre optics can be used for telecommunication, networking, decorations, endoscopy and much more because they are flexible, carry much more information than…

Introduction In general an optical sensor basically is like any other device which could converts light rays(laser beams) into electronic signals, into a form ie readable. Fiber optic sensors have numerous advantages over other conventional electronic sensors. Some important advantages are as below • Ability to integrate different structure. • Their inability to conduct electric current. • Highly resistive to electromagnetic interference. • Lightweight with high sensitivity. • Multiplexing…

inventions and innovations added into a telescope. Telescopes can vary in shape, size, and even color, but are all used for similar reasons. The development of the telescope dates back to around the 1600s and are still being developed and made today. Today, there are several telescopes that can be identified by people who worked and contributed into making some of the very first telescopes. Around 1608, the very first telescope in history was made. This telescope appeared in the Netherlands…

Astronomy Practical – Carey Zimmer The aim of this experiment is to verify the inverse square law involving the light from the globe of an optics kit (The star) and a light meter placed some distance away. This is to be done by analysing the relationship between the source and the detector. Hypothesis: If the distance between a light source and a light meter increases, then the amount of Lux recorded on the light meter will decrease. Materials: • Light box kit • Power supply • Meter ruler •…

helped him gain a reputation for constructing flawless lens systems, which are important for accurate astronomical observations. During this time, he began to modify several heliometers, which are instruments designed to measure the variation of the sun's diameter at different seasons of the year. One of Fraunhofer’s heliometers was used in 1838 to perform the first measurement of the distance between a star (61 Cygni) and the Earth. Also, in 1817 Fraunhofer constructed a 9.5 in lens for the…

leaves a larger image size. If the object distance is larger than the image distance, then it will project a smaller image, which in turn leaving it with a smaller image size. With this, we were also able to see how the light was refracted and how the magnification changed within every trial. Our group also noticed that if the object distance was bigger than the image distance, so was the magnification. If the object distance was smaller than the image distance, the magnification would…