JAI RM-670, User Manual

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Hardware Introduction 11
RM-67X Series
RM-67X Hardware Instructions
1 Hardware Introduction
1.1 Product description
An RM-67X camera is a simple, yet high quality camera capable of meeting a variety of application requirements. Featuring
an advanced HAD-type interline transfer CCD imager, this miniaturized high resolution camera offers many standard and
optional features at a very affordable price. RM-67X cameras are available in multiple optical formats (2/3”, 1/2", 1/3”)
sharing a common set of features. All models are RoHS compliant and have a CCIR video interface. For simplicity, the
remainder of this document will refer to these cameras in a singular form – the RM-67X – but unless specifically noted,
information will apply to all models in the series.
1.2 Features
•
Variable electronic shutter and random CCD integration.
The substrate drain-type shutter mechanism provides a superb picture at various speeds without smearing. The electronic
shutter rate can be externally adjusted, from 1/60 to 1/100,000 in discrete steps, by means of an RS-232 communication
port.
•
Miniaturized and lightweight.
The use of a CCD image sensor in the video camera module and the development of special mini C-mount lenses make it
possible to produce a very compact, lightweight and robust camera small enough to operate just like a remote-head camera
system without the back-end electronics.
•
High sensitivity.
The RM-67X camera is one of the most low-light sensitive CCD cameras available today. This feature is especially important
when using the faster shutter speeds. The CCD detects images into the near infrared. It requires only 0.2 lux minimum
illumination at maximum gain. In general, this allows use of a higher lens f-value while providing greater depth of field and
sharper images.
•
Precise image geometry.
On the CCD image sensor, the photosensor elements form exact rows both horizontally and vertically so that a very precise
image geometry may be obtained.
•
Integrated Lens Control
The RM-67X camera provides external signals which can be used to control motorized lenses. Features such as Zoom, Focus,
and Iris are controllable by means of the the RS-232 communication port. The control signals can support a variety of
lenses. See the appendix for further details.
•
Manual gain control and gamma adjustment.
These adjustments, which are particularly important in vision system applications, are externally adjustable by means of
the RS-232 communication port
• Mirror Image (Horizontal)
The RM-67X camera provides the capability to horizontally mirror the image. This is externally selectable by means of the
RS-232 communication port.
• Genlock circuit.
A genlock circuit is built in to accept external sync for applications in which external sync is required.
•
Low lag/high resistance to image burning.
Since the CCD is highly resistant to image burning, the camera may be exposed to bright objects for a long period of time.
Because a “smear” phenomenon may occur when shooting a very bright object, an infrared cutoff filter is recommended to
obtain a clear picture.