Liquid lens experiment, to find the refractive index of. 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. The new hfa3 with liquid lens is much easier to set up for staff and noninvasive to patients improving patient comfort. Understanding liquid lens technology edmund optics. To find the refractive index of a liquid by using convex lens and plane mirror. Nasdaqlisted machine vision manufacturer cognex is an early adopter of. To determine the refractive index of a liquid using convex lens by parallax method. In this research, students can learn about the liquid lens by demonstrations and design the experimental apparatus for study. Unlike the liquid lens, conventional lens technology requires mechanical adjustments in order to focus or enlarge the images, being captured.
A liquid lens based on electrowetting lsu digital commons. Oil and water mix to create a new kind of lens that could vastly improve cameraphone performance. 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. Keep the lenses in front of the window and obtain a sharp image of the 9 object placed at infinity. The liquid lens is controlled by applying a voltage, which shapes the oil drop into a transparent variable lens. Liquid lens can be considered as infinitely variables lens. 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.
Philips research is a global organization that helps philips introduce meaningful innovations that improve peoples lives. By using the appropriate thread adapter, the optotune focustunable liquid lenses can be easily attached to the front of a techspec c series or ci series fixed focal length imaging lens. Innovative, reliable and outstanding just like our products. Class 12 th to find the refractive index of oil and water using lens and mirror pdf link. In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes. They incorporate all necessary electronic components to drive the liquid lens, and only require a dc power supply. A convex lens, plane mirror, water, coconut oil, an optical needle, an iron stand with base and clamp arrangement, a meter scale etc. This document gives a complete project report on the phenomenon of liquid lens system.
The theory behind liquid lens is based on the properties of one or more fluids to create magnifications within a small amount of space. The mixture of water and oil is sandwiched between two pieces of clear glass or plastic. A liquid lens uses the properties of two different liquids within a small space to provide magnification. The researchers tested varying sizes of drops, from. The objective of this research was to developing of scientific advances of liquid lens use the concept stem education. Use custom search function to get better results from our thousands of pages use for compulsory search eg. Electro wetting with the applied potential, the contact angle of the conductive liquid was changed, which was referenced as electro wetting. Liquid lens apparatus holmarc optomechatronics pvt. 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 modern hfa3 unit will integrate better with digital networking and data applications streamlining patient clinical information. We provide technology options for innovations in the area of health and wellbeing, targeted at both developed and emerging markets. The liquid lens arrangement is kept on a rigid base. A planoconcave liquid lens is thus formed between the convex lens and the plane mirror. Liquid lenses market global industry analysis, size.
Search cloud physics investigatory project class 12 liquid lens important. 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 developing of scientific advances of liquid lens use. In addition, liquid lens is 85% smaller in size compared to typical camera lenses and therefore it finds immense application in mobile and optical devices, where weight and size savings are extremely vital. 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.
The applied voltage can shape the oil in various ways, making a variable focus liquid lens. The experimental setup includes three convex lenses of different focal lengths and a plane mirror. The samples of this research were 40 grade 11 students at ratanaratbumrung school. Understanding liquid lens technology liquid lenses can be used to maximize imaging system flexibility across a wide variety of applications requiring rapid focusing. Pdf the principle of liquid lenses based on electrowetting are presented, with emphasis on the key features that enables to produce a useful component. Liquidlens technology can easily perform more than 100 million cycles without any performance loss. Physics project on liquid lens free download as word doc. But in a liquid lens camera, the droplet stays put and only its curvature changes. Attaching a liquid lens to existing fixed focal length lenses can be useful in applications requiring a large.
The cell itself does not move, and the isodensity of the liquids makes the entire lens resistant to mechanical shock. Electrowetting has recently become popular in many applications including a liquid lens. Attaching a liquid lens to existing fixed focal length lenses can be useful in applications requiring a large depth of field. To determine the combined focal length of the lens system school. However, reported liquid lenses based on electrowetting had a limitation of integration onto a. The lens is then placed over the liquid with its marked face in contact with the liquid. To find the refractive index of a liquid by using convex. Liquid lens structure the lens has a simple structure. 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. The distances of the pointer from the top and bottom of the lens are measured. The pointer is raised or lowered till the tip of its image coincides with the tip of the pointer without parallax. An eye for success producers of optical devices have only just begun to tap into liquid lenses vast potential. In this project, we shall make use of the property of liquid lens to find the refractive index of water and coconut oil.
These are electronically focused controllable cmount lenses based on our a39n0 variable focus lens. The focus of a liquid lens is controlled by the surface of the liquid. About liquid lens 20 years of resin doming innovation. Liquid lens can be considered as infinitely variables lens with variable focus, and the focus is controlled without using any moving parts.
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