Shimadzu Corporation

Eiji Ikeda

Kazumi Yokota

Atsuhiro Iida

Takashi Inoue

Tomoki Sasayama

After a liquid sample between a sample-holding platformand a window plateis measured, a window plate holderis raised, and a headis moved from a standby position into the gap between the window plateand the sample-holding platform. Then, the window plate holderis lowered so as to press the window plateonto the headuntil the headtouches the sample-holding platformbelow. Then the headis swung back to the original position, whereby a wipe materialfitted on the headsimultaneously wipes off the liquid sample from both the lower surface of the window plateand the upper surface of the sample-holding platform. Pressing the arch springsenables the wipe materialto be easily attached to or detached from the head

Liquid-sample wiping mechanism and wipe-material holding mechanism for optical measurement apparatus

A zoom lens is provided between the sample and the slit of a spectrophotometer to change the size of the image of the sample on the slit plane. The picture of the sample is taken by the zoom lens and is shown on a display screen, on which a window is superimposed. When the operator changes the location of the window, the sample is moved accordingly, and when the operator changes the size of the window, the focal length of the zoom lens is changed, whereby the size of the measurement area is changed. By changing the size of the measurement area on the slit plane while the size of the elementary photo-sensors of a photo-detector is unchanged, the resolution of the two-dimensional spectrophotometry can be changed.

Spectropotometer with a field restrictor and its application to a

A spectrophotometer for measuring a two-dimensional area or a spot area in a rather broad surface of a sample, where the spectrophotometer is provided with a camera for taking the picture of the sample surface. The picture is shown on a display screen, and the operator can move a window superimposed on the sample picture in the display screen by using a mouse or the like to a desired place on the sample surface. The sample stage on which the sample is mounted moves according to the movement of the mouse, whereby a spectrophotometric measurement of the desired place (two-dimensional area or the spot area) on the sample is facilitated.

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Nagaokakyo, Japan

Eiji Ikeda