20120281208 | CHAMBER FOR OPTICAL OBSERVATION, METHOD FOR OPTICALLY OBSERVING SAMPLE, AND METHOD FOR MANUFACTURING LOWER TRANSPARENT PLATE - A chamber for optical observation is provided which not only reduces evaporation of a sample put therein but also hardly adsorbs the sample, and allows more accurate evaluation of motility of the sample, and so on. The chamber for optical observation includes a lower transparent plate on which a sample is placed and an upper transparent plate which covers an upper side of the sample. The lower transparent plate is formed of a flexible material. When the sample is placed on a central portion of the lower transparent plate and covered with the upper transparent plate, the central portion of the lower transparent plate is depressed due to its own weight and the weight of the sample. In this state, a peripheral portion of the lower transparent plate comes into contact with the upper transparent plate, whereby the sample can be sealed with the upper transparent plate and the lower transparent plate. | 11-08-2012 |