This video tutorial is about how an image of an object placed in front of a concave mirror is formed? The ray from the object fall on the mirror after the reflection the ray passes from the focus and image is formed at 2F. The image is inverted. For the derivation of the equation watch the tutorial video of Algebra.
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CW wavelength = 1594nm CW input power = 10mW Waveguide length =~1cm Waveguide width = 4um Material = AlGaAs (Aluminum Galium Arsenide) Other dimension: unknown. Coupling: fiber - waveguide - fiber Venue: SF-4107 Fiber optics communcation laboratory, University of Toronto The mode image is magnified because the objective is placed in such a position that fringes can be observed. Note that the fringes from the input lensed fiber are passed through the waveguide because the waveguide is to transmitting lights. There is no linear lens effect in the waveguide. The vertical position of the middle stage of Newport Ultralign 561 middle stage is being tuned: 1. The taper tip of the lensed fiber is above the waveguide. The light is reflected from the surface of the waveguide. The bottom screen is bright because the image is inverted by the convex lens. 2. The waveguide is raised such that the taper tip of the lensed fiber is on the same level of the guiding layer. The light from the lensed fiber is guided by the waveguide, and a bright circular (with fringes) appears at the output. 3. The waveguide is still raised such that the taper tip is pointing the substrate. Larger circular fringes can be observed, which is due to the input light from the lensed fiber. 4. The waveguide is being raised. Horizontal fringes appear due to the reflection of light inside the substrate, leading the interference pattern. The above steps are being reversed in the video, and the mode image is formed at ...
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1. Prevent ultraviolet ray (UV) going thru lens. 2. Saturate picture colors. 3. Extend CCD life. 4. Convert convex lens to flat lens that can clean easily. 5. Increase color brightness & saturation. 6. Prevent scratches & dust getting into lens.
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A little video we made for our Physics TFU Project. It's all about trying to burn an object using Reflection and Refraction. Group Members: Isaac Tay, Low Qi Xun, Abdul Aziz, Li Ming Ren. Script: How to burn an object using the concept of refraction or by reflection light rays from the sun. Based on the myth of the Archimedes death ray. These are the apparatus we are using. An empty can of soda. Metal polish Now Start polishing the bottom of the can to make it mirror-like. Now we head outdoors at midday, around 12noon to 2 pm, when the sun is bright and strong. Find the focal point by moving the leaf up and down slowly. Smoke Watch caaaarefully. How does it work? The bottom of the can serves as a parabolic concave mirror which reflects and converges the suns rays onto the focal point. This concentrates the heat of the sun. This can be seen in the diagram, where we have traced the suns rays as they travel and are reflected by the concave mirror which is the soda can, to converge onto a point. Refraction These are the apparatus we are using. Find the focal point. Now, wait as the point of concentrated suns rays burn the leaf. Check it out in Fast forward. How it works. The convex lens of the magnifying glass will focus the suns rays on to a point. This concentration produces a point source of heat, similar to the experiment using the soda can. This heat can burn a hole in the leaf. The magnifying glass can converge the suns rays because of the convex lens and the refraction ...
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Vboy (Game Boy emulator)Using nokia n79's camera with separate convex lens.
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