F-Term-List

G01C3/00-3/32

AA00
TRIGONOMETRICAL MEASUREMENT OF BASE-LINE LENGTH BY PROJECTING LIGHT

AA01

AA02

AA03

AA05

AA06

AA07

AA08

AA09

AA10

. Mechanically variable optical axes of distance-measuring apparatuses

. . Use of a single light-receiving element (e.g., for semiconductor position detectors and the like)

. . Use of a pair of light-receiving elements

. Fixed optical axes of distance-measuring apparatuses

. . Use of a single light-receiving element (e.g., for semiconductor position detectors and the like)

. . Use of a pair of light-receiving elements

. . Use of a large number of light-receiving elements arranged along the base line

. . Use of two-dimensional light-receiving elements (e.g., TV cameras and the like)

. Others

AB00
FOCAL POINT DETECTION SYSTEM

AB01

AB03

AB05

AB07

AB10

. Use of elements for receiving light beams split four ways

. Use of elements for receiving light beams split two ways or position sensing detectors (PSD)

. Use of a single light-receiving element

. Use of a large number of light-receiving elements arranged in a straight line

. Others

AC00
TRIGONOMETRICAL MEASUREMENT OF BASE-LINE LENGTH BY MATCHING OF TWO PARALLEL IMAGES

AC01

AC02

AC03

AC04

AC06

AC10

. Use of a large number of light-receiving elements arranged along the base-line

. . Mechanically variable optical axes of distance- measuring apparatuses

. . Fixed optical axes of distance-measuring apparatuses

. . . Binary-coding of image signals

. Use of two-dimensional light-receiving elements (e.g., TV cameras and the like)

. Others

AD00
OTHER MEASUREMENTS OF OPTICAL DISTANCE

AD01

AD03

AD05

AD06

AD10

. Measurement of the propagation time of light waves

. Measurement of the intensity of light reflected by the objects for which the distance away is to be measured

. Measurement using the principle of triangulation

. . Use of base lines in distance-measuring apparatuses

. Others

BA00
PURPOSE AND EFFECT

BA01

BA02

BA03

BA04

BA05

BA06

BA07

BA09

BA10

. Performance improvement

. . Operability improvement

. . Expansion of measurement scope

. . Reduction of power consumption

. . Reduction of processing time

. . Improvement of resolution or accuracy

. . Improvement of the signal-to-noise (S/N) ratio

. Simplification of structure

. . Reduction in size or in weight

BA11

BA12

BA14

BA15

BA16

BA18

BA20

. . Reduction of the number of parts

. . Reduction of the number of steps in the process of assembly and adjustment or calibration

. Detection of abnormal states

. . Apparatus per se

. . Objects to be measured

. Protection and safety

. Others

CA00
TARGET AND USAGE

CA01

CA02

CA03

CA04

CA05

CA06

CA07

CA08

. A subject matter of which application target is specifically stated.

. . Cameras (including video cameras)

. . Photoelectric detectors (i.e., photoelectric switches)

. . Robots, machine tools, and the like

. . Automobiles and vehicles

. . Measuring equipment

. . Microscopes and exposure apparatuses

. . Three-dimensional measuring devices

CA11

CA12

CA13

CA14

CA20

. Non-specific target applications

. . Detection of distance (i.e., location)

. . Detection of displacement

. . Height (i.e, trigonometric measurement of trees, buildings, and the like)

. Others

DA00
CHARACTERIZED BY OPTICAL SYSTEMS

DA01

DA02

DA04

DA05

DA06

DA08

DA09

DA10

. Arrangement of the light-projection axis

. . Multiple axes

. Beam condensation (i.e., lenses per se)

. . Combination of lenses

. . Aspherical lenses (i.e., cylindrical lenses)

. Deflection (i.e., mirrors)

. . Mirrors

. . . Prisms

DA11

DA13

DA15

DA17

DA19

. . Diffraction gratings

. Shielding members (e.g., use of masks, gratings, slits, and the like)

. Scanning

. Polarization

. Optical filters

DA21

DA22

DA24

DA25

DA26

DA28

DA30

. Wavelength

. . Visible lights

. Light-emitting elements per se

. . Lasers

. . Diodes

. Light-receiving elements per se

. Optical fibers

DA32

DA40

. Arrangement of individual elements

. Others

EA00
CHARACTERIZED BY LIGHT-PROJECTING CIRCUITS

EA01

EA03

EA05

EA07

EA09

. Projection of continuous light

. Projection of light whose intensity is modulated at a predetermined frequency

. Projection of single-shot pulses

. A subject matter of which quantity of light varies in predetermined patterns

. Control of the quantity of light projection using feedback

EA11

EA20

. Light projection timing

. Others

FA00
CHARACTERIZED BY DATA PROCESSING CIRCUITS

FA01

FA03

FA05

FA07

FA08

FA09

. A subject matter that implements main computing in an analog manner.

. A subject matter that implements main computing in a digital manner.

. Peak hold

. Analog/digital (A/D) conversion (i.e., multi-value coding)

. . Binary-value coding

. . . Determination or change of threshold values

FA12

FA14

FA15

FA16

FA17

FA19

FA20

. Switching

. Counter

. . Start point for counting

. . End point for counting

. . Holding or locking-in of the counted value

. Memory circuits

. . Use of analog data for storage

FA21

FA23

FA25

FA27

FA29

. . Use of digital data for storage

. Correction of linearity

. Compensation circuits (to cancel variations in a circuit)

. Differential processing

. Integral processing

FA31

FA32

FA33

FA35

FA36

FA38

FA39

. Signal correction (i.e., emphasis of contour)

. . Filtering

. . Removal of noise

. Image processing (i.e., two-dimensional-image processing)

. . Generation of windows

. . Pattern matching

. . Parameter extraction for specifying shapes

FA41

FA43

FA45

FA50

. Statistical processing

. Delay of signals

. Programmed steps of processing

. Others

GA00
CHARACTERIZED BY OTHERS

GA01

GA03

GA05

GA10

. Multiple points

. Sectional profiles of the projected light beam

. Indication or display of measured values

. Others

2F112	MEASUREMENT OF OPTICAL DISTANCE
	G01C3/00 -3/32