기능

• It is a prism that can reflect all incoming light back to its original direction.
• It is used as a reflector in laser length measuring machines.
• The Corner Cube was developed to measure the distance between the Moon and Earth, and was placed on the lunar surface when the Apollo spacecraft landed on the Moon.
• Corner cubes are precisely machined so that they can return light with high accuracy.
• Even if the angle of the corner cube changes slightly during measurement, the angle of the returning light will not change, and the light will return to the detector of the measuring instrument.
• CCB-M type with anti-reflection film is also available to reduce the reflection loss of the incoming and outgoing surfaces.
• A Hollow Retro Reflector (RCCB) is also available that does not change the amount of reflection even at an incident angle of 20 degrees or more.
• * When a beam is incident on the corner cube, the beam is returned at exactly the same angle as the incident angle, but when the incident position of the beam is far from the center of the corner cube, the beam is emitted from the same distance away from the center.
• * The edges where the three reflecting surfaces of the corner cube intersect are chamfered, and if you look through the incoming and outgoing surfaces, you will see six lines that do not reflect light radially.
• * When using a thin laser beam, make sure that the beam is not applied to these six lines.
• * Fingerprints or dirt on the uncoated surface may prevent total reflection even if the angle is higher than a critical angle.
• * Do not let the no-coat surface come in contact with anything.
• * When the corner cube is reflected by the total reflection surface, the phase difference occurs, and the polarization characteristic of the returned light changes greatly.
• * Hollow Retro Reflector (RCCB) is also available, which has a small change in polarization characteristics.