公开(公告)号：DE2412858A1

公开(公告)日：1974-10-10

申请号：DE2412858

申请日：1974-03-18

Applicant: SONY CORP

Inventor： ICHIGAYA HIROSHI ,  MACHIDA HIROMASA ,  SUDO MASAYUKI ,  MIZUNO MASAMI ,  AWATA YORIYOSHI

IPC: H01J29/02 ,  H01J29/00 ,  H01J29/70 ,  H01J29/72 ,  H04N9/28

Abstract: 1458542 Colour television tubes SONY CORP 15 March 1974 [19 March 1973] 11725/74 Heading H1D [Also in Division H4] In a colour TV tube of the shadow mask type misregistration due to thermal expansion of the mask is prevented by providing means 8 including a plurality of coils which produce a magnetic field to change the beam paths when a current is passed and means including devices sensing the temperatures of the tube and of the structure and which varies the current according to the difference between the said temperatures. The means 8 comprise a pair of magnetic cores 6 carrying coils 7 and mounted on the funnel portion of the C.R.T. The thickness and material of the bent portions may differ from the straight portions. The position of the structure relative to the screen can be such that the current increases or decreases as the temperature increases. The current 9 includes thermistors with negative temperature coefficients of resistance attached to the CRT chassis and to a core 6 which changes in temperature in the same manner as the structure. The circuit also ineludes a variable resistor which allows the circuit to be used to compensate for maladjustment occurring during manufacture.

公开(公告)号：CA1001319A

公开(公告)日：1976-12-07

申请号：CA195065

申请日：1974-03-15

Applicant: SONY CORP

Inventor： ICHIGAYA HIROSHI ,  MACHIDA HIROMASA ,  SUDOH MASAYUKI ,  MIZUNO MASAMI ,  AWATA YORIYOSHI

IPC: H01J29/02 ,  H01J29/00 ,  H01J29/70 ,  H01J29/72 ,  H04N9/28

Abstract: 1458542 Colour television tubes SONY CORP 15 March 1974 [19 March 1973] 11725/74 Heading H1D [Also in Division H4] In a colour TV tube of the shadow mask type misregistration due to thermal expansion of the mask is prevented by providing means 8 including a plurality of coils which produce a magnetic field to change the beam paths when a current is passed and means including devices sensing the temperatures of the tube and of the structure and which varies the current according to the difference between the said temperatures. The means 8 comprise a pair of magnetic cores 6 carrying coils 7 and mounted on the funnel portion of the C.R.T. The thickness and material of the bent portions may differ from the straight portions. The position of the structure relative to the screen can be such that the current increases or decreases as the temperature increases. The current 9 includes thermistors with negative temperature coefficients of resistance attached to the CRT chassis and to a core 6 which changes in temperature in the same manner as the structure. The circuit also ineludes a variable resistor which allows the circuit to be used to compensate for maladjustment occurring during manufacture.

公开(公告)号：FR2275873A1

公开(公告)日：1976-01-16

申请号：FR7519245

申请日：1975-06-19

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J31/20 ,  H01J29/72 ,  H04N9/28 ,  H01J29/80

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.

公开(公告)号：FR2275873B1

公开(公告)日：1977-07-22

申请号：FR7519245

申请日：1975-06-19

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J31/20 ,  H01J29/72 ,  H04N9/28 ,  H01J29/80

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.

公开(公告)号：DE2527602A1

公开(公告)日：1976-01-15

申请号：DE2527602

申请日：1975-06-20

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H04N9/28

Abstract: A system for correcting the errors at the target of an electron beam directed at a phosphorescent screen of a colour cathode ray tube (1). The corrections are necessary because of thermal expansion of the beam selection device. The tube if fitted with additional coils (8) which will generate correcting magnetic fields along the path of the electron beam. An excitation current I1 is supplied to these coils from a circuit which will be a function of the change in temperature (12, 13) of the selection mask. The correction current will not be generated during the warm up period of the system. A second correction current (I2) is supplied to one or more of the correction coils from a second circuit (29) which cancels the first during the warm up period.

公开(公告)号：NL7507435A

公开(公告)日：1975-12-23

申请号：NL7507435

申请日：1975-06-20

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J29/72 ,  H04N9/28 ,  H01J31/20

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.

公开(公告)号：NL182043C

公开(公告)日：1987-12-16

申请号：NL7507435

申请日：1975-06-20

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J29/72 ,  H04N9/28 ,  H01J31/20 ,  H01J29/51

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.

公开(公告)号：DE2527602B2

公开(公告)日：1977-01-27

申请号：DE2527602

申请日：1975-06-20

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H04N9/28

公开(公告)号：IT1039184B

公开(公告)日：1979-12-10

申请号：IT2462075

申请日：1975-06-20

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J29/72 ,  H01J31/20 ,  H04N9/28 ,  H04N

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.

公开(公告)号：CA1047158A

公开(公告)日：1979-01-23

申请号：CA229272

申请日：1975-06-13

Applicant: SONY CORP

Inventor： AWATA YORIYOSHI ,  TAKAGAWA KIYOYUKI

IPC: H01J31/20 ,  H01J29/72 ,  H04N9/28 ,  H04N9/20

Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.