Asynchronous Reset
Asynchronous Reset
The TM-6705AN's asynchronous reset is flexible and takes
external horizontal drive (HD) for phase locking. When VINIT
pulse is applied, it resets the camera's scanning and purges the
CCD. There are five modes to control the asynchronous reset
and shutter speed:
1. Internal shutter speed with Fast mode. The shutter speed
range is 1/8,000 to 1/32,000 sec. The video signal is captured within
1H from the falling edge of the VINIT.
2. Internal shutter speed with Slow mode. The speed control
range is from 1/2,800 to 1/6,000 sec. The camera will discharge at
VINIT falling edge if VINIT and external HD falling edges are the
same. Output timing delay will depend on the selected shutter timing.
3. Asynchronous reset at 0 shutter. This resets the camera
without shutter function. This is useful for conventional strobe
applications.
4. External VINIT with pulse width control. (Partial scan control)
The duration between pulse edges controls the partial scan period
and the fast dump externally.
5. Async readout control. VINIT and ROI (Read Out Inhibit) are
used together to control the CCD output for multiple camera
applications or multiple exposure functions, to replace strobes.
The shutter speed varies by 1H (1/32,000) up to 11H (1/2,800).
Although ROI is designed to be asynchronous with VINIT, best
results may be achieved by keeping these functions relatively
close.
General Description
General Description
The PULNiX TM-6705AN is a monochrome full-frame shutter camera
which offers double the frame speed of conventional “TV format” cam-
eras. Since the standard mode is double speed, the image can be dis-
played on a standard VGA monitor. This camera also offers external con-
trol variable partial scanning capability with capture rates up to 200fps at
100-line scans. PULNiX PVM multi-sync monitors display all TM-6705AN
functions, including partial scanning.
This high resolution square pixel camera has a VGA format interline
transfer CCD imager. The signal output is single channel double speed
analog progressive scanning (525 lines) at 60 Hz. Asynchronous reset,
asynchronous readout control and full-frame integration are standard
features.
Images captured in multiple camera applications are stored in each
CCD until the readout signal is sent to each individual camera. A single
frame grabber and processor can multiplex and process video frames
which are taken simultaneously. Consequently, the TM-6705AN can
actually replace the use of strobe lights for multiple exposures and in
multiple camera applications, in limited and controlled environments.
With its unique capacity for multiple shutter exposures within a
frame to capture high speed events, this camera is excellent in applica-
tions such as bar code reading, high speed on-line inspection, gauging,
character reading, high definition graphics, and motion analysis.
Applications
Applications
• Bar Code Reading • Character Reading
• High Speed On-line Inspections • High Definition Graphics
• Gauging • Motion Analysis
Single Channel VGA Output
Single Channel VGA Output
While there are a number of CCD cameras called “VGA”, in gen-
eral only the CCD but not the output is VGA format. The TM-6705AN is
true VGA format for both input device (CCD) and output, at 525 lines
progressive scan per 60 Hz.
This is achieved with a single channel CCD output circuit so that there is
no need for two sets of frame grabbers or memory buffers. This also simpli-
fies the signal processing in the imaging system since the memory map-
ping can be a straight forward progressive scan format instead of multiple
memory buffers. For slow scan or multi scan frame grabbers, Option 7-2 is
provided to output the clock, HD and VD (RS-422, single-ended).
Product Features
Product Features
•
High resolution 1/2" progressive scanning
interline transfer CCD imager 648(H) x 484(V)
• Single channel output VGA progressive scan
(525-lines/60Hz), variable partial scan
• Full frame shutter ....1/60 to 1/32,000 sec.
• Asynchronous reset with partial scan control
• Async readout for multi-camera application
• Multiple shutter images per frame
• Full frame integration
• Small, lightweight, rugged design
• Replaces strobe lights with electronic shutter
IMAGING PRODUCTS
TM-6705AN PROGRESSIVE SCAN
ASYNC SHUTTER & READOUT CAMERA
TTMM--66770055AANN
(138 paginas)
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