The adapter comprises a lens unit and a half-reflecting mirror.

A person to be measured views his or her face in the half mirror.

The half-mirror (250) reflects the image light, and directs the image light to the pupil of a user.

Light to a first one of the semiconductor elements (2) is deflected towards this element by a partially transmitting mirror (5).

Image light is outputted from an output device (210) in the projection device (200) toward a half-mirror (250).

A good generator of this sort is a photon sent onto a semi-reflective mirror.

Since the sealed chamber (26) is filled with the heat from the light source (27), the clouding preventing function of the half-mirror (25) is fully displayed.

Within the instruments a semi-transparent mirror splits a laser beam in half.

The mirror is a semi-reflecting mirror, meaning it reflects part of the light/image and lets through another.

Heat of the light source (27) accumulates in the closed chamber (26) and thus fully exhibits condensation preventive function on the half-mirror (25).

The photon going to the left is sent through a beam splitter (BSA or BSB depending on the initial path).

In its "reflection" configuration, it uses a half-silvered mirror which reflects the beam from the object towards a detector.

A stationary temperature instrument (101) comprises a red LED and a thermopile sensor which are visibly embedded in a half mirror surface.

A semi-reflective mirror transmits a predefined percentage of the reflected light to the first camera and reflects a predefined percentage of the reflected light to the second camera.

A semi-reflective (half-silvered) mirror is placed on the trajectory of a photon, thereby leaving two possibilities for the photon's trajectory.