3OM-1003-005.pdf - 第103页

(A03_04) Window Size [mm] Set the recognition area (complete square) for the P .E.C. recognition function. Unit: mm Set preferably small values to avoid false recognition and shorten rec- ognition time. Data Input Range …

(A03_02) Mark Type

The following options can be selected as shapes of fiducial marks.

Table 3B15

Mark Type Shape Mark Type Shape

Round Pad Mark/No Land

Square Pad Mark/Land (E)

Equilateral Triangle (Up) Pad Mark/Land (SE)

Cross Pad Mark/Land (S)

Rectangle Pad Mark/Land (SW)

Checker (Square) Pad Mark/Land (W)

Diamond Pad Mark/Land(NW)

Equilateral Triangle (Down) Pad Mark/Land (N)

Bow Tie Pad Mark/Land (NE)

Checker (Rectangle)

Thru Hole/No Land

Thru Hole/Land (E)

Thru Hole/Land (SE)

Thru Hole/Land (S)

Thru Hole/Land (SW)

Thru Hole/Land (W)

Thru Hole/Land (NW)

Thru Hole/Land (N)

Thru Hole/Land (NE)

(A03_03) Mark Size D1 [mm], Mark Size D2 [mm]

Set the dimensions of fiducial marks.

Unit: mm

Refer to "(A03_08) Fiducial Marks" for details.

2.3 Operation Data

0305-001 2-33 AIL01EDTP

Round

Mark Type

Fig. 3B60

2.00

0.00

Mark Size D1 [mm]

Mark Size D2 [mm]

Fig. 3B61

Note

(A03_04) Window Size [mm]

Set the recognition area (complete square) for the P.E.C. recognition

function.

Unit: mm

Set preferably small values to avoid false recognition and shorten rec-

ognition time.

Data Input Range

1.0

1.0 to 5.0 5.0

Fig. 3B63

(A03_05) Mark Image

Select one of the following options as an image of the mark pattern to

be captured by the camera.

Select either mode according to the difference in contrast between a

mark pattern and its surroundings to get a clear fiducial images.

Bright : Bright Fiducial/Dark Background

Dark : Dark Fiducial/Bright Background

Wrong mode selection causes malfunction of the recognition.

(A03_06) Mark Level

Set the threshold levels of the fiducial marks.

High : Both identity and similarity between the shape of a fiducial

mark and the real image are detected on a high level.

Middle: Either identity or similarity between the shape of a fiducial

mark and the real image are detected on a middle level.

Low : Both identity and similarity between the shape of a fiducial

mark and the real image are detected on a low level.

(a) Identity

Identity between the shapes of the specified mark and the real im-

age (including the size)

(b) Similarity

Similarity between the shapes of the specified mark and the real

image

Window Size

Fiducial Mark

2.3 Operation Data

0305-001 2-34 AIL01EDTP

5.0

Window Size [mm]

Fig. 3B62

High

Mark Level

Fig. 3B65

Bright

Mark Image

Fig. 3B64

Note

(A03_07) Recog Algo

Select "Pattern match" or "Edge detection" as a P.C.B. recognition

algorithm.

In normal cases, select "Pattern".

Pattern : Select this when there is enough difference in contrast

between a fiducial mark and a P.C.B. (Recognition by

Pattern Matching Method).

Fig. 3B67

Edge : Select this when there is not much difference in contrast

between a fiducial mark and a P.C.B. and the shadow of

the fiducial mark is cast around the mark. (Correction by

Mark Edge Detection Method).

Fig. 3B68

Fiducial Mark (Bright)

P.C.B.

Fiducial Mark (Bright)

P.C.B. (Bright)

Shadow of Fiducial Mark

2.3 Operation Data

0305-001 2-35 AIL01EDTP

Pattern

Recog Algo

Fig. 3B66