| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Karioja, Pentti
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022Development of gradient index microlenses for the broadband infrared rangecitations
- 2014Detection of low concentration formaldehyde gas by photonic crystal sensor fabricated by nanoimprint process in polymer materialcitations
- 2014Detection of low concentration formaldehyde gas by photonic crystal sensor fabricated by nanoimprint process in polymer materialcitations
- 2012Printed hybrid systemscitations
- 2011UV-imprinting of single-mode polymeric waveguidescitations
- 2011Manipulation of optical field distribution in layered composite polymeric-inorganic waveguidescitations
- 2011Field enhancement in polymer waveguides fabricated by UV imprintingcitations
- 2010Fabrication of optical inverted-rib waveguides using UV-imprintingcitations
- 2009Hermetic fiber pigtailed laser module utilizing passive device alignment on an LTCC substratecitations
- 2009Finland-Japan Workshop on Nanophotonics and Related Technologies
- 2008Electro-optical properties of BaTiO3-SrTiO3 multilayer thin films for waveguide modulatorscitations
- 2008Electro-optical properties of BaTiO 3 -SrTiO 3 multilayer thin films for waveguide modulatorscitations
- 2007Inmould integration of a microscope add-on system to a 1.3 Mpix camera phonecitations
- 2006Fiber pigtailed multimode laser module based on passive device alignment on an LTCC substratecitations
- 2006Integrated LTCC modules by laminating and co-firing tapes directly on heat sinkcitations
- 2006Cost-efficient hermetic fibre pigtailed laser module utilizing passive device alignment on an LTCC substrate
- 2004Photo-crosslinkable hybrid material with improved aging stability for integrated optics
Places of action
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document
Inmould integration of a microscope add-on system to a 1.3 Mpix camera phone
Abstract
A microscope add-on device to a 1.3 Mpix camera phone was selected as ademonstrator system for testing inmould integration of electronic substratesand plastic optics. Optical design of the device was quite challenging due tothe fact that illumination system needed to be integrated with a doubleaspheric singlet lens structure as a single optical piece. The designedimaging lens resolution was adequate to resolve 10 ìm features with a mobilephone camera. In the illumination optics the light from LEDs embedded into theplastic structure was collected and guided to the surface that was imaged.Illumination was designed to be uniform and adequately bright to achieve highresolution images with the camera phone. Lens mould design was tested by usinginjection moulding simulation software. The critical mould optical surfaceswere designed as separate insert parts. Final shapes producing lens surfaceswere tooled by diamond turning on nickel coatings. Electronic circuit boardinserts with bonded bare LED chips and packaged SMD LEDs were assembled to themould and then overmoulded with optical grade PMMA. Experiences proved thatinmould integration of electronic substrates, bare LED chips and highresolution imaging optics in injection-compression moulding process isfeasible. The yield of embedded packaged and also bare chip components wasclose to 100% after the right injection moulding process parameters werefound. Prototype add-on system was characterized by testing the imagingproperties of the device with a camera phone.