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Alluxa - Optical Coatings LB 8/23
rangefinder Dictionary Terms

diasporometer
In an optical rangefinder, the system of wedges that rotate in opposite directions to aid in the detection of deviation in the image axis.
virtual base
The product of the actual base or baseline of a rangefinder or heightfinder, and the power or magnification of the...
heightfinder
A rangefinder used to determine the height or altitude of aerial targets by means of optical triangulation. The device...
coupled rangefinder
A rangefinder on a camera that is integrated with the focusing mechanism so that when an object's range is determined, the...
embedded laser
The term "embedded laser" typically refers to a laser device that is integrated or embedded into a larger system or...
penta prism
A five-sided prism containing two reflecting surfaces at 45° to each other, and two refracting faces perpendicular to...
Nd:YAG laser
Nd:YAG laser refers to a solid-state laser that utilizes neodymium-doped yttrium aluminum garnet (Nd:Y3Al5O12) as the gain...
coincidence rangefinder
An optical instrument used to determine the distance to a target being viewed. Two similar optical systems view the target...
3D laser triangulation
3D Laser Triangulation - A technology that allows sensors to probe the surroundings. Laser triangulation systems have an...
coincidence prism
A compound prism consisting of an assembly of small prisms cemented together that is used in a coincidence rangefinder to...
surveying instruments
Instruments used for measuring angles and occasionally lengths on the ground. The principal surveying instruments are the...
parallactic angle
The angular difference in the direction of an object as seen from two points of observation. The angle subtended at the...
stereoscopic rangefinder
A rangefinder similar to a pair of binoculars with a long base, a dot or other wander mark provided in each eyepiece field,...
ocular prism
The prism used in a rangefinder to bend the lines of sight through the instruments into the eyepieces.
halving line
The line that divides the two half-images in a coincidence rangefinder. The two halves of the images formed by the two...
correction window
An optical wedge of very small angles that admits light while sealing out moisture and dirt and that may be rotated to...
rhomboid prism
A reflecting prism that is rhomboidal in shape. It has two parallel transmitting faces, and two parallel reflecting faces;...
optical rangefinder
 unit of error
A unit of measurement in a rangefinder corresponding to 12 s of arc in the apparent field.
triangulation
A method of measuring distance by recording a single scene from two points of perspective. Surveying instruments can be...
rangefinder
1. An optical distance finder that depends on triangulation of two convergent beams on an object from disparate view points....
correction wedge
In rangefinders and height finders, a rotatable or sliding wedge-shaped element used to divert the line of sight precisely...
laser rangefinder
A laser rangefinder is a device that uses laser technology to measure the distance between the device and a target. It...
split field
The field of view seen through some types of coincidence rangefinders. It is formed by the juxtaposition of opposite halves...
measuring wedge
A wedge in a rangefinder or heightfinder used to displace the image produced by one telescope so that it coincides with that...

(25 results found)

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