Low-light specimen image pickup unit and low-light specimen...

Optics: measuring and testing – Plural test

Reexamination Certificate

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C356S417000

Reexamination Certificate

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07630065

ABSTRACT:
In order to be able to take an image of a specimen emitting low light in a short exposure time by a cooled CCD at about 0° C., a low-light specimen image pickup unit has an imaging optical system forming a specimen image of a specimen having a point light source emitting a low light, and the low-light specimen image pickup unit further has an image pickup unit having a plurality of pixels receiving incident light, for taking an image corresponding to the specimen image. In the low-light specimen image pickup unit, the imaging optical system is telecentric to a side of the specimen image of the imaging optical system, and condenses the low light emitted from the point light source to form an Airy disk of a size which is substantially the same as a pixel of the pixels, or which is smaller than the pixel. Here, the pixel receives the low light emitted from the point light source.

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Abstract of Japanese Patent Application No. 05-011191, published Jan. 19, 1993.
David K. Welsh, et al., “Bioluminescence Imaging of Individual Fibroblasts Reveals Persistent, Independently Phased Circadian Rhythms of Clock Gene Expression,” Current Biology, 2004, vol. 14, p. 2289B295.
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