This standard specifies the scope, specifications, dimensions and light reflection coefficient of reflective TV radiation strip test charts. This standard test chart is mainly used to adjust the best focus of black and white and color TV camera systems and check the astigmatism of TV camera devices.
GB/T 13170.12-1991 history
2011GB/T 13170-2011 Test charts of reflection for television
1991GB/T 13170.12-1991 Test charts of reflection for television.Radiation stripe test chart
GB/T 13170.12-1991 Test charts of reflection for television.Radiation stripe test chart was changed to GB/T 13170-2011 Test charts of reflection for television.