2OM-1064-002.pdf - 第39页

MARK IMAGE Select one of the following options for a fiducial mark image (mark pattern) taken by the camera. “BRIGHT” “DARK” BRIGHT : Bright Fiducial/Dark Background DARK : Dark Fiducial/Bright Background • Select either…

MARK SIZE D1 (mm), D2 (mm), D3 (mm)

• “D3 (mm)” is reserved data.

Set the outer and inner diameters of a fiducial mark.(Unit: mm)

Refer to “(1) Type and Size” in “2.3.4 P.E.C. Fiducial Marks

of Section 2” for details.

WINDOW SIZE

Set the window size (recognition area) for the P.E.C. recogni-

tion function. (Unit: mm)

Set a preferably small value to avoid false recognition and

shorten recognition time.

MARK DATA

The mark data (code) corresponds to the code No. of the fidu-

cial mark used in the P.E.C. recognition function.

• 10 types of mark codes can be registered for each program

data.

MARK TYPE

Shown is the selected type of fiducial mark.

• Marks are categorized according to the following three types

- “P.E.C. Mark”, “Through Hole”, and “Pad Mark”.

2. Pattern Program

Mark Size

Window Size

(Complete Square)

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MARK TYPE

TYPE

ROUND

EQUILATERAL TRIANGLE

(Upturned)

CROSS

RECTANGLE

CHECKER (square)

DIAMOND (rotated square)

EQUILATERAL TRIANGLE

(Downturned)

BOW TIE

CHECKER (rectangle)

THROUGH HOLE/NO LAND

THROUGH HOLE/LAND (E)

THROUGH HOLE/LAND (SE)

THROUGH HOLE/LAND (S)

THROUGH HOLE/LAND (SW)

THROUGH HOLE/LAND (W)

THROUGH HOLE/LAND (NW)

THROUGH HOLE (N)

THROUGH HOLE/LAND (NE)

PAD MARK/NO LAND

PAD MARK/LAND (E)

PAD MARK /LAND (SE)

PAD MARK/LAND (SW)

PAD MARK/LAND (W)

PAD MARK/LAND (NW)

PAD MARK/LAND (N)

PAD MARK/LAND (NE)

TYPE

MARK TYPE

SQUARE

<P.E.C. Mark>

PAD MARK /LAND (S)

Fig. 2.24

9910-001 2-26 Tg0247-PM-PM

MARK IMAGE

Select one of the following options for a fiducial mark image

(mark pattern) taken by the camera.

“BRIGHT”

“DARK”

BRIGHT : Bright Fiducial/Dark Background

DARK : Dark Fiducial/Bright Background

• Select either mode according to the difference in contrast

between the fiducial and its surroundings.

• Select better mode to get a clear fiducial image.

Note: Wrong mode selection causes malfunction of fiducial

mark recognition.

MARK LEVEL

Select one of the following options as a level to detect a fidu-

cial mark shape.

“HIGH”

“MIDDLE”

“LOW”

HIGH : Both identity and similarity between the shape

of a fiducial mark and the real image are de-

tected on a high level.

MIDDLE : Either identity or similarity between the shape

of a fiducial mark and the real image is de-

tected on a high level.

LOW : Both identity and similarity between the shape

of a fiducial mark and the real image are de-

tected on a low level.

Identity:

Identity between the shape of the specified mark and the real

image (including the size)

Similarity:

Similarity between the shape of the specified mark and the

real image

9910-001 2-27 Tg0247-PM-PM

2. Pattern Program

RECOG ALGO

Set a P.C.B. recognition algorithm.

“PATTERN”

“EDGE”

•

In normal cases, set “PATTERN” in the data box.

[PATTERN MATCHING]

Set “PATTERN” when there is enough difference in contrast

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

Matching Method)

2. Pattern Program

P.C.B. (Bright）

Shadow of Fiducial Mark

Fiducial Mark (Bright)

Fig. 2.25

[EDGE DETECTION]

Set “EDGE” 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. 2.26

9910-001 2-28 Tg0247-PM-PM

P.C.B.

Fiducial Mark (Bright)