In a pattern formation member adopted to a sectioning image observation apparatus which selectively irradiates a light from a light source to a sample, scans the sample, and acquires a light from the sample as a sectioning image, the pattern formation member comprises an irradiation section and a cutoff...http://www.google.de/patents/US6940625?utm_source=gb-gplus-sharePatent US6940625 - Pattern forming member applied to sectioning image observation apparatus and sectioning image observation apparatus using them
