Télémétre

Rangefinder, telemeter.—Télémétre mono stat i que (télémétre a petite base). One man rangefinder.—Télémétre bist at i que. Two man rangefinder.—Télémétre a grande base. Telemeter of the “ position-finder ” cla —Télémétre de dépre ion. Depre ion rangefinder.—Télémétre 4 base moyenne. Range-finder requiring two stations, though not nece arily two observers (¢.g., Weldon).—Télémétre de campagne. Infantry size Barr and Stroud rangefinder (50 cm. base).—Télémétre stadimétrique. Telemeter based on the height or width of the object, the apex of the triangle being at the eye—Jumelle télémétre. Range-finding field gla es. Télémétre stéréoscopique. Range-finder based on stereoscopic relief instead of on coincidence or juxtaposition of images.—Télémétre a coincidence. One in which the two haloes of the image are brought together.—Télémétre a bande droite. One in which the middle portion of the object is brought into line with the rest.—Télémétre a recouple ment. One in which distinct and complete images are fused.—Télémétre a renversement (a image renversée). One in which two images, one reversed, are brought into line.—Télémétre retourné. As the previous, but images lateral. [p.568]