00191369-02 - 第277页
User Manual HS-50 6 Vision functions Software Version S R.501.xx 12/99 Issue US 6.6 Test Comp onent 277 t I I t – Illum inatio n paramet ers a re – the c ontrast i n the i mage – the X plane, flat, mi ddle and ste ep il …
6 Vision functions User Manual HS-50
6.6 Test Component Software Version SR.501.xx 12/99 Issue US
276
t IIt
This menu allows you to change 6
– the lead dimensions,
– the package dimensions,
– the ball imaging parameters,
– the illumination parameters and,
– the transformation table.
6
– Lead dimension parameters are
– optical lead length in the X and Y-directions of the component
– optically lead width in the X and Y-directions of the component
NOTE 6
The pitch and number of leads can only be changed in the line computer. 6
– Package dimension parameters are
– the outside dimensions of the component in millimeters in the X and Y-directions. Outside
dimensions means the optical dimensions of the component including the lead dimensions.
The geometric dimensions of the leads and component are stored in the GF file in the line
computer. Depending on the geometry of the component and on its illumination by the com-
ponent camera, it is possible that imaging errors may occur. The image does not reproduce
the life-size geometric dimensions but reduces them. This is what is called imaging reduc-
tion. For this reason one refers to the optical dimensions of the leads and component. Set
the component dimensions in a way that they match the visible component outline. The re-
duction factor is entered in the "Real-MA" file. 6
As regards defining the position of the origin of the coordinates system and defining regular and
irregular components, please refer to Section 6.3.2
on page 198. 6
– Ball imaging parameters are
– inner and outer radius type
– inner and outer radius (usually not used)
–contrast
– ball model
User Manual HS-50 6 Vision functions
Software Version SR.501.xx 12/99 Issue US 6.6 Test Component
277
t IIt
– Illumination parameters are
– the contrast in the image
– the X plane, flat, middle and steep illumination levels for illuminating the component
(brightness control).
– Color representation parameters (5 sections)
– 10 parameter IN values
– 10 parameter OUT values
The parameters are stored in the GF file in the line computer. Upon request the GF file will be sent
to the station computer. Finally it will be converted and transferred to the MVS controller. 6
If you modify a parameter, it will be entered in the x.SST file. The x.SST file will be converted and
loaded into the MVS controller. 6
6.6.4.8 Illumination Option
When this option is selected the video image for checking and setting illumination will appear. 6
6
Fig. 6.6 - 26 Test component menu, Illumination video image
6
GF No. = 5Illumination
RET: Test component
Illuminat. = flat/middle/steep Field step =
Blank: step width
Tab: Illumination
Brightness = 0 ... 255
: Brightness up
: Brightness down
6 Vision functions User Manual HS-50
6.6 Test Component Software Version SR.501.xx 12/99 Issue US
278
t IIt
Å You can use the arrow keys to increase or decrease the brightness of the rows of LEDs in the
component camera system which illuminate the component. The brightness can be set within
a range of 256 steps with 255 being the maximum value.
Å Use the spacebar to toggle the step size for changing the brightness from 1 to 10 µm and back.
Å Use the tab key to move between the three illumination levels: steep (top row of LEDs), me-
dium (second row of LEDs) and flat (third row of LEDs) camera lighting.
Å Press the Return key to execute the individual measurement steps which are included in the
measurement conditions.
Å With Esc you can quit the option. You will then be returned to the Test component menu.
6
NOTE 6
Section 6.7.6 from page 311 contains instructions for selecting the illumination parameters.