JAI CV-A1-20 operation manual Appendix, Precautions, Typical CCD Characteristics

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CV-A1-20

10. Appendix

10.1. Precautions

Personnel not trained in dealing with similar electronic devices should not service this camera.

The camera contains components sensitive to electrostatic discharge. The handling of these devices should follow the requirements of electrostatic sensitive components.

Do not attempt to disassemble this camera.

Do not expose this camera to rain or moisture.

Do not face this camera towards the sun, extreme bright light or light reflecting objects. When this camera is not in use, put the supplied lens cap on the lens mount.

Handle this camera with the maximum care.

Operate this camera only from the type of power source indicated on the camera.

Power off the camera during any modification such as changes of jumper and switch setting.

10.2. Typical CCD Characteristics

The following effects may be observed on the video monitor screen. They do not indicate any fault of the CCD camera, but do associate with typical CCD characteristics.

V. Smear

Due to an excessive bright object such as electric lighting, sun or strong reflection, vertical smear may be visible on the video monitor screen. This phenomenon is related to the characteristics of the Interline Transfer System employed in the CCD.

V. Aliasing

When the CCD camera captures stripes, straight lines or similar sharp patterns, jagged image on the monitor may appear.

Blemishes

Some pixel defects can occur, but this does not have en effect on the practical operation.

Patterned Noise

When the CCD camera captures a dark object at high temperature or is used for long time integration, fixed pattern noise (shown as white dots) may appear on the video monitor screen.

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Contents CV-A1-20 CV-A1-20 Table of ContentsGeneral Standard Composition Main FeaturesLocations and Functions Pin Assignment Pin Multi-connector DC-IN/VIDEO OUT, EXT.HD/VDPin Multi-connector Trigger HD and VD input Input and Output CircuitsVideo output Trigger inputBasic functions CV-A1 Block DiagramFunctions and Operations PWC H synchronous accumulation PWC asynchronous accumulation Ext. HD and ext. VD phase conditions Input-output of HD/VD SignalsContinuous Operation Non triggered Edge Pre-select Mode.TR=1 External Trigger ModesTable showing the figures for the different modes Edge Pre-select ModePulse Width Control trigger mode Pulse Width Control ModeFrame Delay read out mode Frame-delay read out ModeLong time exposure Long Time Exposure ModeStart/Stop mode Start/Stop ModeSmearless Mode Smearless ModeRS-232C control Configuring the CameraOther Functions Timing and shutter related commands CV-A1-20 RS-232C command listCamera Control Tool for CV-A1-20 Internal Switch and Jumper Settings External Appearance and DimensionsSpectral Sensitivity SpecificationsAppendix PrecautionsTypical CCD Characteristics Declaration of Conformity Users Record