摘要:
A synchronously gated high speed CCD imager system (12) having a predetermined frame time includes: a CCD interline transfer array including a plurality of photoelectric collection quantum wells (14, 16) for collecting photoelectrons from an object; a plurality of storage wells (18, 20) associated with the collection wells; an anti-blooming circuit (30) for diverting photoelectrons from accumulating in the collection wells; and switching means (33) for transferring the photoelectrons accumulated in the collection wells to the storage wells and enabling the anti-blooming circuit during synchronized portions of the frame time to divert photoelectrons from accumulating in the collection wells and for disabling the antiblooming circuit to enable the collection wells to collect photoelectrons during another portion of the frame time.
摘要:
A synchronously gated high speed CCD imager system (12) having a predetermined frame time includes: a CCD interline transfer array including a plurality of photoelectric collection quantum wells (14, 16) for collecting photoelectrons from an object; a plurality of storage wells (18, 20) associated with the collection wells; an anti-blooming circuit (30) for diverting photoelectrons from accumulating in the collection wells; and switching means (33) for transferring the photoelectrons accumulated in the collection wells to the storage wells and enabling the anti-blooming circuit during synchronized portions of the frame time to divert photoelectrons from accumulating in the collection wells and for disabling the antiblooming circuit to enable the collection wells to collect photoelectrons during another portion of the frame time.
摘要:
An improved three-dimensional imaging system for imaging an object including a plurality of resolvable elements includes: an amplitude modulated radiation source for transmitting radiation to the object (28); at least one photoelectric image detector (12, 14, 16); means for synchronously enabling the at least one detector during at least three portions of the period (37, 38, 39) of the modulated radiation source for detecting the radiation reflected from the object (36); means for calculating the phase angle between the transmitted radiation and the reflected radiation (40); and means, responsive to the means for calculating the phase angle for calculating the range of a plurality of elements of the object with respect to each other (40).
摘要:
A synchronously gated high speed CCD imager system (12) having a predetermined frame time includes: a CCD interline transfer array including a plurality of photoelectric collection quantum wells (14, 16) for collecting photoelectrons from an object; a plurality of storage wells (18, 20) associated with the collection wells; an anti-blooming circuit (30) for diverting photoelectrons from accumulating in the collection wells; and switching means (33) for transferring the photoelectrons accumulated in the collection wells to the storage wells and enabling the anti-blooming circuit during synchronized portions of the frame time to divert photoelectrons from accumulating in the collection wells and for disabling the antiblooming circuit to enable the collection wells to collect photoelectrons during another portion of the frame time.
摘要:
An optical measurement system includes: at least one optical beam transmitter (16); at least one optical beam detector (22) for receiving the optical beam from the transmitter; modulation means (42) for modulating the intensity of the transmitted optical beam; processor means (32) for detecting the fractional and integer phase difference between the intensity modulation of the transmitted beam and the beam received by the receiver; and a calculator device (38) for converting the integer and fractional phase difference into a distance between the transmitter and detector.
摘要:
A laser displacement measurement system (10) including a radiation source (12) for transmitting radiation to a target (16), an R.F. transmitter oscillator (18) for modulating the amplitude of the radiation at a first frequency, a detector (24) for sensing the radiation reflected from target (16), an R.F. local oscillator (28) for providing an R.F. signal at a second frequency, a first mixer circuit (34), responsive to the oscillators for providing a local I.F. signal which is the difference between the first and second frequencies, a second mixer circuit (44), responsive to detector (24) and R.F. local oscillator (28), for providing a reflected I.F. signal which is the difference between the second frequency and the modulated frequency of the reflected radiation, and a phase detector (48), responsive to the local and reflected I.F. signals, for detecting a first phase difference between the signals representative of the distance of target (16).
摘要:
An optical measurement system includes: at least one optical beam transmitter (16); at least one optical beam detector (22) for receiving the optical beam from the transmitter; modulation means (42) for modulating the intensity of the transmitted optical beam; processor means (32) for detecting the fractional and integer phase difference between the intensity modulation of the transmitted beam and the beam received by the receiver; and a calculator device (38) for converting the integer and fractional phase difference into a distance between the transmitter and detector.
摘要:
An improved three-dimensional imaging system for imaging an object including a plurality of resolvable elements includes: an amplitude modulated radiation source for transmitting radiation to the object (28); at least one photoelectric image detector (12, 14, 16); means for synchronously enabling the at least one detector during at least three portions of the period (37, 38, 39) of the modulated radiation source for detecting the radiation reflected from the object (36); means for calculating the phase angle between the transmitted radiation and the reflected radiation (40); and means, responsive to the means for calculating the phase angle for calculating the range of a plurality of elements of the object with respect to each other (40).