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Ink-Jets Produce Microlenses

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Dr. Tsuyoshi Asaeda

Ink-jets are not just for printing anymore. A team from NTT Telecommunications Energy Laboratories in Tokyo has demonstrated the mass production of microlens arrays for optical-input/output packaging using commercial180-dpi ink-jet printing heads. The ink-jet method offers noncontact fabrication of microlenses on a target, such as a vertical-cavity surface-emitting laser (VCSEL). Resin is ejected onto the substrate from the nozzle, and ultraviolet radiation cures the droplets into hemispherical lenses. By selecting the viscosity and volume of a droplet, the researchers can vary the...Read full article

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    Published: March 2002
    Accent on ApplicationsApplicationsCommunicationslensesOptics

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