Apparatus for measuring three-dimensional configurations
First Claim
1. An endoscope apparatus for measuring three-dimensional configurations comprising:
- measuring light generating means (23, 24, and
22) for generating simultaneously a plurality of measuring lights at different modulation frequencies;
measuring light projecting means (20, 25, 9, and
14) for spatially separating said plurality of measuring lights such that they are projected simultaneously onto the whole surface of an object to be measured;
light receiving means (11) for receiving the measuring lights reflected from the object;
signal processing means (35 and
326) that preliminarily stores specific distance position information which is supplied with an output signal from said light receiving means to derive the distance to the object, wherein said signal processing means (35 and
326) has a plurality of separator circuits (42 or
53) for separating frequency components from the output signal from said light receiving means (11);
a plurality of peak position detector circuits (43) coupled to output terminals of said separator circuits and which are supplied with outputs of the separator circuits operating at a same center frequency,a distance calculating circuit (44) coupled to said peak position detector circuits, anda three-dimensional configuration memory (45) coupled to said distance calculating circuit, said distance calculating circuit storing specific distance position information; and
an endoscope unit (6) that transmits the measuring light from said measuring light generating means to the object and which transmits the reflected lights from the object to said light receiving means.
1 Assignment
0 Petitions
Accused Products
Abstract
N lines of line-shaped light are projected onto the object by means of a measuring light projecting lens. The light carrying the image of the object is passed through the eyepiece lens 17 in an endoscope 6 and the auxiliary lens 30 in a measuring head 11 and split into two beamlets by a beam splitter 31, with one beamlet being focused at a position coinciding with the entrance end faces of measuring light'"'"'s position detecting fibers 33(l) to 33(m). The line-shaped light images of the object thus formed in positions coinciding with the entrance end faces of measuring light'"'"'s position detecting fibers 33(l) to 33(m) are scanned linearly by those linearly aligned fibers as they are oscillated and driven by a fiber scanner 36. The scanned line-shaped light images are then subjected to the necessary signal processing in a signal processor circuit 35 such as to measure the three-dimensional configuration of the object.
207 Citations
87 Claims
-
1. An endoscope apparatus for measuring three-dimensional configurations comprising:
-
measuring light generating means (23, 24, and
22) for generating simultaneously a plurality of measuring lights at different modulation frequencies;measuring light projecting means (20, 25, 9, and
14) for spatially separating said plurality of measuring lights such that they are projected simultaneously onto the whole surface of an object to be measured;light receiving means (11) for receiving the measuring lights reflected from the object; signal processing means (35 and
326) that preliminarily stores specific distance position information which is supplied with an output signal from said light receiving means to derive the distance to the object, wherein said signal processing means (35 and
326) has a plurality of separator circuits (42 or
53) for separating frequency components from the output signal from said light receiving means (11);
a plurality of peak position detector circuits (43) coupled to output terminals of said separator circuits and which are supplied with outputs of the separator circuits operating at a same center frequency,a distance calculating circuit (44) coupled to said peak position detector circuits, and a three-dimensional configuration memory (45) coupled to said distance calculating circuit, said distance calculating circuit storing specific distance position information; and
an endoscope unit (6) that transmits the measuring light from said measuring light generating means to the object and which transmits the reflected lights from the object to said light receiving means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
-
-
44. A system for measuring three-dimensional configurations comprising;
-
measuring light generating means (23, 24, and
22) for generating simultaneously a plurality of measuring lights at different modulation frequencies;measuring light projecting means 20, 25, 9, and 14 for spatially separating a plurality of measuring lights such that it is projected simultaneously onto the whole surface of an object to be measured; light receiving means (11) for receiving the measuring lights reflected from the object; signal processing means (35 and
326) that preliminarily stores specific distance position information which is supplied with an output signal from said light receiving means to derive the distance to the object, wherein said signal processing means (35 and
326) has a plurality of separator circuits (42 or
53) for separating frequency components from the output signal from said light receiving means (11);a plurality of peak position detector circuits (43) coupled to output terminals of said separator circuits and which are supplied with outputs of the separator circuits operating at a same center frequency, a distance calculating circuit (44) coupled to said peak position detector circuits, and a three-dimensional configuration memory (45) coupled to said distance calculating circuit, said distance calculating circuit storing specific distance position information; and transmission means (6) that transmits the measuring lights from said measuring light generating means to the object and which transmits the reflected light from the object to said light receiving means. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87)
-
Specification