A cell culture incubator has an incubator cabinet with an internal chamber for the incubation of cells in one or more cell culture vessels and a door opening from an external environment to the internal chamber. At least two imagers configured for imaging the cells are within the internal chamber and a manipulator for manipulating the cells in the one or more cell culture vessels is within the internal chamber. A cell culture vessel transfer device moves the one or more cell culture vessels between the at least two imagers within the internal chamber and a controller is configured for controlling the cell culture transfer device to move cell culture vessels between the at least two imagers.

To provide an automatic analyzer in which a reaction container can be smoothly inserted into a hole of an incubator. An automatic analyzer 100 analyzing a sample includes: an incubator 105 having a hole 202 into which a reaction container 114 containing a mixture of the sample and a reagent is to be inserted; and a transfer unit 109 configured to transfer an unused reaction container 114 to the incubator 105 and insert the reaction container 114 into the hole 202. A lubricating member 203 having a self-lubricating property is provided at an inlet port of the hole 202.