Patent ID: 8422007

Claim:
An optical measurement device for measuring an optical appearance of a surface of a sample located in a first plane, the optical measurement device comprising a measuring head which can be brought into contact with the surface, the measuring head comprising: an illumination device for illuminating the surface with an illumination beam; a detection device for detecting a response beam, wherein the response beam is a response to the illumination of the sample with the illumination beam; wherein the detection device comprises a screen for intercepting the response beam and an image detection component for imaging the screen, wherein the screen has only a shape of a quarter hemisphere, wherein the illumination device comprises a fiber arranged inside the measuring head in order to direct the illumination beam onto the surface of the sample, wherein the measuring head comprises a flat mirror located in a second plane which is tilted relative the first plane, and wherein the flat mirror is located between the sample and the image detection component for reflecting an image of the screen into the image detection component.