| 摘要 |
The invention comprises an image capture device (10) for capturing an image of a test tube rack 34 comprising a plurality of test tubes each having an individual barcode thereon. The image capture device comprises: an enclosure comprising a transparent window (16) which, in use, is adjacent the test tube rack to be imaged; at least one camera (14) mounted within the enclosure to capture an image through the window; a plurality of light sources 30,18 mounted within the enclosure to illuminate the window, and at least one light blocking element 22 arranged to at least partially block light radiating from at least one of the plurality of light sources 18. The plurality of light sources and the light blocking elements are arranged within the enclosure to provide generally uniform illumination across the whole window and to reduce unwanted reflections. The plurality of light sources could include groups of sources with different magnitudes, at different locations and mounted at different angles. |
