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AssigneeSeiko Epson Corporation
InventorsShigeo Nojima, Masatoshi Yonekubo, Yujiro Nomura
Estimating the term…
The invention relates to a small-format exposure head wherein ball lenses are positioned in alignment with individual devices of an organic EL array to efficiently collect a light beam from each device onto an image carrier such as a photosensitive material with no crosstalk yet with sufficient resolving power, and an imaging system incorporating the same. An array of organic EL devices is provided on a long length of substrate 3 in at least one row of pixel arrangement. On the light-emitting side of the array of organic EL devices, a ball lens 10 is positioned in alignment and contact with each light emitter 2 of the organic EL device. The ball lens 10 formed of a transparent material having a refractive index of 2 or greater.
An organic electroluminescent array exposure head, comprising a long length of substrate, an array of organic electroluminescent devices arranged on said substrate in at least one row of pixel pattern, and a ball lens positioned in alignment with a light emitter of each organic electroluminescent device on a light-emitting side of the array of organic electroluminescent devices, wherein:
An organic electroluminescent array exposure head, comprising a long length of substrate, an array of organic electroluminescent devices arranged on said substrate in at least one row of pixel pattern, and a ball lens positioned in alignment with a light emitter of each organic electroluminescent device on a light-emitting side of the array of organic electroluminescent devices, wherein:
Dependencies are inferred from the claim text.