{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Oil and water combined in lens technology' data-url='/boclips/videos/5c54bc69d8eafeecae12c748' data-video-url='/boclips/videos/5c54bc69d8eafeecae12c748' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nOil and water combined in lens technology\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003e1. Various of dew drops on branches and leaves 2. Various of woman taking photo with mobile phone 3. Set up of Bruno Berge, president of Varioptic, company that's developed liquid lens technology4. SOUNDBITE (English) Bruno Berge,...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003e1. Various of dew drops on branches and leaves \u003cbr/\u003e2. Various of woman taking photo with mobile phone \u003cbr/\u003e3. Set up of Bruno Berge, president of Varioptic, company that's developed liquid lens technology\u003cbr/\u003e4. SOUNDBITE (English) Bruno Berge, President of Varioptic\u003cbr/\u003e\"It was a little bit by chance of course as usual in research, I was looking for something else, for some ways to increase the wet ability of water on a surface, which is a tricky subject, and I found out that electric fields could very easily control this wet ability.  (to make a surface contain water more proficiently)\"\u003cbr/\u003e5. Lens\u003cbr/\u003e6. Close up of hands holding lens\u003cbr/\u003e7. SOUNDBITE (English) Bruno Berge, President of Varioptic:\u003cbr/\u003e\"It works very simply, you have in fact a transparent cell, you have two liquids, which are non miscible (can't be mixed), exactly like water and oil.\"\u003cbr/\u003e8. Graphic of enlarged image of a drop of water working inside lens and electric current is injected\u003cbr/\u003e9. SOUNDBITE (English) Bruno Berge, President of Varioptic:\u003cbr/\u003e\"So we use the surface between oil and water as an optical surface, and we use electric fields to deform or to change the shape of this liquid interface.\"\u003cbr/\u003e10. Lens mounted onto a prototype mobile phone, onto an enlarged image sensor \u003cbr/\u003e11. Actual image sensor in  real dimensions \u003cbr/\u003e12. Lens in operation, focusing onto a calendar picture, then shown onto a computer screen \u003cbr/\u003e13. Lines showing the auto-focus movements \u003cbr/\u003e14. Focusing on a pen on a sheet of graph paper, (reportedly one of the most difficult thing to focus on) \u003cbr/\u003e15. SOUNDBITE (English) John Barber, International Sales Manager for Varioptic: \u003cbr/\u003e\"A liquid lens has no moving parts, it is just the change of shape of two liquids inside the lens which changes the focus, and with mobile phones ... they get a rough life, so having no moving parts is a major asset - the other systems are quite fragile. So all the mobile phone companies we talked to are very, very interested to have a lens which can change its focus but they think is very, very robust\". \u003cbr/\u003e16. Various interiors of production facility for pilot line of lenses\u003cbr/\u003e17. SOUNDBITE (English) John Barber, International Sales Manager for Varioptic: \u003cbr/\u003e\"There's a whole range of applications, it goes from mobile phones through web cams, to cars - there are increasing numbers of imaging systems going in cars - medical applications, endoscopes, toys, so there's a huge range of applications, anywhere there are small cameras, small optical systems, the liquid lens has major applications\". \u003cbr/\u003e18. Close up of lens \u003cbr/\u003e19. Interior of labs preparing liquids for the lenses\u003cbr/\u003e20. Lens undergoing a test\u003cbr/\u003eMobile phones that double as cameras are not new.\u003cbr/\u003eBut the technology behind the quality of the pictures is constantly developing.\u003cbr/\u003eOne company in France is using oil and water to improve camera lenses - and it's turning out to be a winning combination.\u003cbr/\u003eMorning sunrays shining through a dew drop. \u003cbr/\u003eLook closer and you can see every vein on the ivy leaf magnified by the water ... it is as if you were looking through a lens on a camera. \u003cbr/\u003eNow, this same concept is being adapted for mobile phone cameras - and while it seems like simple technology, the difficult part is trapping the lens-like properties of a water droplet so it works as an autofocus lens. \u003cbr/\u003eHowever, Varioptic, a company based in Lyon, France, has managed  to do just that.\u003cbr/\u003eSOUNDBITE (English)\u003cbr/\u003e\"It was a little bit by chance of course as usual in research. I was looking for something else, for some ways to increase the wet ability of water on a surface, which is a tricky subject, and I found out that electric fields could very easily control this wet ability. (to make a surface contain water more proficiently)\" \u003cbr/\u003eSUPER CAPTION: Bruno Berge, President of Varioptic\u003cbr/\u003eSo how does it work?\u003cbr/\u003eSOUNDBITE (French) \u003cbr/\u003e\"It works very simply, you have in fact in a transparent cell, you have two liquids, which are non miscible, exactly like water and oil.\"\u003cbr/\u003eSUPER CAPTION: Bruno Berge, President of Varioptic \u003cbr/\u003eThe shape of the drop is controlled to create a lens - much like how the human eye works.\u003cbr/\u003eSOUNDBITE (French) \u003cbr/\u003e\"So we use the surface between oil and water as an optical surface, and we use electric fields to deform or to change the shape of this liquid interface.\" \u003cbr/\u003eSUPER CAPTION: Bruno Berge, President of Varioptic \u003cbr/\u003eAt zero volts, the surface is flat, but at 40 volts, the surface becomes highly convex. \u003cbr/\u003eThe lens is only ten millimetres in diameter and 2,5 millilitre high.\u003cbr/\u003eThe auto-focus is fast and accurate - it allows the photographer to focus very close up - unlike current mobile phone lenses which require at least metre distance to focus properly.\u003cbr/\u003eSOUNDBITE (English)\u003cbr/\u003e\"A liquid lens has no moving parts, it is just the change of shape of two liquids inside the lens which changes the focus. And with mobile phones ... they get a rough life, so having no moving parts is a major asset - the other systems are quite fragile. So all the mobile phone companies we talked to are very, very interested in having a lens which would change focus but that is very very robust.\"  \u003cbr/\u003eSUPER CAPTION: Bruno Berge, President of Varioptic\u003cbr/\u003eAt the moment, this pilot production line in Lyon is producing up to 10 thousand lenses a month.\u003cbr/\u003eSpare parts are first cleaned and checked, then the rings are laid in a tray of water. \u003cbr/\u003eFrom here on - at the push of a button - the process is completely automatic. \u003cbr/\u003eThe oily liquid is deposited onto the water surface, and the rings are then sealed to top. \u003cbr/\u003eSOUNDBITE (French)\u003cbr/\u003e\"There's a whole range of applications, it goes from mobile phones to webcams, to cars - there are increasing numbers of imaging systems going in cars - medical applications, endoscopes, toys - so there's a huge range of applications, anywhere there are small cameras, small optical systems, the liquid lens has major applications.\" \u003cbr/\u003eSUPER CAPTION: John Barber, International sales manager for Varioptic \u003cbr/\u003eThe technology is also set to move into the medical field - partnerships with biotech companies are already on the table.\u003cbr/\u003eVarioptic is going to present the first liquid lens mobile phone at a telecommunications conference in Barcelona in February.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource 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