| US 7,524,458 B2 | ||
| Screen plate of an imaging measuring instrument | ||
| Janne Salonen, Mynämäki (Finland) | ||
| Assigned to Wallac Oy, Turku (Finland) | ||
| Filed on Apr. 29, 2002, as Appl. No. 10/133,627. | ||
| Claims priority of application No. 20010881 (FI), filed on Apr. 27, 2001. | ||
| Prior Publication US 2002/0164268 A1, Nov. 07, 2002 | ||
| Int. Cl. G01N 21/00 (2006.01) | ||
| U.S. Cl. 422—82.05 [436/164; 356/417] | 11 Claims |
| 1. A screen plate of an imaging measuring instrument, mainly intended for use in absorption measurement of samples relating
to the fields of biochemistry and medicine, which screen plate comprises
at least one layer (a) selected from the group consisting of a fluorescent layer, a light-scattering layer and a combination
fluorescent and light scattering layer,
at least one base plate (b) on which said at least one layer (a) is located, said layer (a) being in contact with said base
plate (b),
characterized in
that base plate (b) of the screen plate is made of light-absorbing material which allows only those light rays coming from
said layer (a), mainly in a direction perpendicular to the base plate (b), to pass through the said base plate (b).
|