bon CP-33, Инструкция по эксплуатации

Страница: 13 / 21

6 Operating
bon CP-50
GA bon CP-50 Rev 1.0 E 271205 13/21
6.3 Filters
6.3.1 Red/green filters
The red/green filters highlight the red and green optotypes separately.
This function is cancelled by pressing anyone key.
6.3.2 Polarisation filters
The polarisation filters separately polarise the optotypes in 45° and 135°.
This function is cancelled by pressing anyone key.
6.4 Masks
The CP-50 projector allows the follow charts to be selectively shown (>= 0.25 acuity level)
using a mask disc.
ƒ
Landolt rings
ƒ
Numbers
ƒ
Illiterate Es
ƒ
Children’s pictures
ƒ
Letters
Choose horizontal or vertical masks. This function is cancelled by pressing anyone key.