Even when culturing cells according to a predetermined protocol, it is essential to continuously observe and directly confirm the cells during the culture process.

Actual cells are nearly transparent, so the images we capture represent the shadows or light distortions of the cells. However, with Rainbow Scope, it has two separate light sources that can be independently adjusted, allowing for changes in the angle of incident light and color of the light source based on the cell's characteristics. This enables a more accurate representation of cell morphology.