The experimental setup includes three convex lenses of different focal lengths and a plane mirror. The cell itself does not move, and the isodensity of the liquids makes the entire lens resistant to mechanical shock. The liquid lens physics astronomy project topics, physics science fair projects, pyhsical science, astrology, planets solar experiments for kids and also organics physics science ideas for cbse, icse, gcse, middleschool, elementary school for 5th, 6th, 7th, 8th, 9th and high school students for the year 2016. Liquid lens can be considered as infinitely variables lens. The liquid lens is controlled by applying a voltage, which shapes the oil drop into a transparent variable lens. Liquid lens structure the lens has a simple structure. Optotune focustunable liquid lenses are available with cmount housing. These are electronically focused controllable cmount lenses based on our a39n0 variable focus lens. They incorporate all necessary electronic components to drive the liquid lens, and only require a dc power supply. Pdf the principle of liquid lenses based on electrowetting are presented, with emphasis on the key features that enables to produce a useful component. The modern hfa3 unit will integrate better with digital networking and data applications streamlining patient clinical information.
Now find the accurate focal length of two lenses l1 and l2 by using the experimental setup individually and calculate its focal length reading. The applied voltage can shape the oil in various ways, making a variable focus liquid lens. But in a liquid lens camera, the droplet stays put and only its curvature changes. Measure the distance between lenses and the image formed with the 10 help of scale. Innovative, reliable and outstanding just like our products. In this project, we shall make use of the property of liquid lens to find the refractive index of water and coconut oil. To find the refractive index of a liquid by using convex. The pointer adjustment for coincidence is done and the distance from the top y 1 and bottom y 2 of the lens are measured. A convex lens, plane mirror, water, coconut oil, an optical needle, an iron stand with base and clamp arrangement, a meter scale etc. Unlike the liquid lens, conventional lens technology requires mechanical adjustments in order to focus or enlarge the images, being captured.
Class 12 th to find the refractive index of oil and water using lens and mirror pdf link. Search cloud physics investigatory project class 12 liquid lens important. Liquid lens apparatus holmarc optomechatronics pvt. Huge list of class xii physics projects, physics projects, science fair projects for physics, working models, astronomy project ideas,physics experiments, exhibition topics free download, expo ideas, cbse class 12 projects, physical science projects x11 for kids and also for middle school, elementary school for class 5th grade,6th, 7th, 8th, 9th, 10th, 11th, 12th grade and high.
Keep the lenses in front of the window and obtain a sharp image of the 9 object placed at infinity. The developing of scientific advances of liquid lens use. This document gives a complete project report on the phenomenon of liquid lens system. Nasdaqlisted machine vision manufacturer cognex is an early adopter of. In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes. In this research, students can learn about the liquid lens by demonstrations and design the experimental apparatus for study. Liquid lens can be considered as infinitely variables lens with variable focus, and the focus is controlled without using any moving parts. The new hfa3 with liquid lens is much easier to set up for staff and noninvasive to patients improving patient comfort. With 20 years of growth, development and partnership to draw upon, liquid lens is the market leader for quality doming resin, doming technology and domed label production, and were still innovating. Understanding liquid lens technology edmund optics. The focus of a liquid lens is controlled by the surface of the liquid.
However, reported liquid lenses based on electrowetting had a limitation of integration onto a. The theory behind liquid lens is based on the properties of one or more fluids to create magnifications within a small amount of space. Physics project on liquid lens optics electrodynamics. Liquid lenses market global industry analysis, size. Oil and water mix to create a new kind of lens that could vastly improve cameraphone performance. A planoconcave liquid lens is thus formed between the convex lens and the plane mirror. Physics project on liquid lens free download as word doc. To find the refractive index of a liquid by using convex lens and plane mirror. Use custom search function to get better results from our thousands of pages use for compulsory search eg. In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium.
The researchers tested varying sizes of drops, from. Philips research is a global organization that helps philips introduce meaningful innovations that improve peoples lives. The experiments show that this kind of variablefocus liquid lens has better image quality, and complies with the law of thin lens imaging within a certain range of changes in liquid volume. To determine the refractive index of a liquid using convex lens by parallax method. A liquid lens uses the properties of two different liquids within a small space to provide magnification. An increase in the ability to provide a larger number of tests for the hospital community. Liquidlens technology can easily perform more than 100 million cycles without any performance loss. A liquid lens uses one or more fluids to create an infinitelyvariable lens without any moving parts by controlling the meniscus the surface of the liquid. Electro wetting with the applied potential, the contact angle of the conductive liquid was changed, which was referenced as electro wetting. The samples of this research were 40 grade 11 students at ratanaratbumrung school. Attaching a liquid lens to existing fixed focal length lenses can be useful in applications requiring a large. Electrowetting has recently become popular in many applications including a liquid lens. We provide technology options for innovations in the area of health and wellbeing, targeted at both developed and emerging markets. An eye for success producers of optical devices have only just begun to tap into liquid lenses vast potential.
Attaching a liquid lens to existing fixed focal length lenses can be useful in applications requiring a large depth of field. A liquid lens based on electrowetting lsu digital commons. The pointer is raised or lowered till the tip of its image coincides with the tip of the pointer without parallax. About liquid lens 20 years of resin doming innovation. The objective of this research was to developing of scientific advances of liquid lens use the concept stem education. Water and oil do not mix, and are both safe and inexpensive, so they are perfect for use in a liquid lens. The distances of the pointer from the top and bottom of the lens are measured. Apparatus a convex lens, a plane mirror, clean transparent liquid in a beaker, an optical needle, a thick knitting needle passed through a rubber cork, an iron stand with base and clamp arrangement, plumb line, plane glass slab, a spherometer, half metre scale etc. Understanding liquid lens technology liquid lenses can be used to maximize imaging system flexibility across a wide variety of applications requiring rapid focusing. If f 1 and f 2 be the focal length of the glass convex lens and liquid lens and f be the focal length of their combination then.
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