发明名称 |
ANTIGLARE DEVICE FOR A TELEVISION CAMERA, PARTICULARLY APPLICABLE TO MISSILE GUIDANCE |
摘要 |
A television camera equipped with a device making it possible to automatically eliminate the blooming effect produced by a saturating bright spot. The device includes a closed loop formed by a circuit for the comparison of the video signal with a predetermined threshold close to the saturating level and whose output supplies a generator for deflection signals corresponding to the localization at X and Y of the bright spot on the image and a generator for producing a unblanking signal for the tube during the line flyback and with a frequency variable as a function of the brightness of the bright spot, and circuits for mixing the deflection and unblanking signals respectively with TV scan deflection signals and with the beam blanking signal in such a way that there is a local modification of the tube sensitivity at the location of the bright spot by reducing the charge integration time. |
申请公布号 |
DE3163260(D1) |
申请公布日期 |
1984.05.30 |
申请号 |
DE19813163260 |
申请日期 |
1981.02.03 |
申请人 |
THOMSON-CSF |
发明人 |
PEPIN, CHRISTIAN;TRAHAND, JEAN-PIERRE |
分类号 |
H04N5/228;(IPC1-7):H04N5/34;H04N5/19 |
主分类号 |
H04N5/228 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|