MEASURING DEVICE FOR CONTACT ANGLE

摘要

PROBLEM TO BE SOLVED: To provide a measuring device for contract angle capable of extending the space for placing a sample and dispensing with the use of expensive equipment. SOLUTION: This measuring device for contract angle for measuring the contact angle of a droplet 110 dropped onto the surface 101 of a base plate 100 comprises a magnifying optical system 3A arranged vertically to the surface 101 of the base plate 100 for dropping the droplet 110 and a mirror 4 located on the optical path of the magnifying optical system 3A to bend the optical path at a right angle or an angle close to the right angle. The magnifying optical system 3A observes the droplet 110 on the surface 101 of the base plate 100 from the horizontal or a direction close to the horizontal through the mirror 4.