Electronic
iris
Multi-spot /
Center-zone
BLC
Internal sync. External sync.
Line lock
Minimum
illumination
0.03 lx
ATW
AWC
Manual
Areas in which illuminance will not be measured
520
TV Lines

System Chart

Camera Technology

A Comprehensive Line-up

of Multi-functional High

CameraResolution Cameras

Solves a Variety of

Surveillance Needs

DVRCamera · Lens Pan-focus Camera Network Camera Specialty Camera

Example System MonitorSSP System

Pan-focus lens can bring a broad area into focus, enabling the camera system to

visualize everything in the field of view clearly at the same time. The lens also has a 2.6x zooming function. As a result, it allows a surveillance camera to capture a clear video image offering details of background objects.

Horizontal resolution

The SANYO camera delivers 520 TV lines.

The DSP (Digital Signal Processor) with a proprietary algorithm produces sharp outlines and natural color with no color smudges.

24-hour surveillance is now possible with just a single camera that works as a color camera during

the day and a high-sensitivity B/W camera during the night. The mode of operation is automatically switched by replacing the optical filter. The use of an optical filter in the color mode also allows video recording in true colors.

Minimum subject illumination

The minimum illumination required for recognizing a subject is generally 2 to 6 lx for color cameras, and 0.03 lx for B/W cameras. Minimum subject illumination changes according to the F value of combined lenses. When F1.2 lenses and F1.4 lenses are combined with an F1.2 lens, minimum subject illumination is reduced, making monitoring possible in dark locations.

100,000 to

Illumination guidelines

 

 

 

5,000 lx

1,500 to 750 lx

200 to 100 lx

5,000 lx

 

 

 

 

 

 

 

 

 

 

 

 

Outdoors with fine weather

Fine weather in the shade,

Shops, food counters,

Hotel reception

 

 

 

outdoors with cloud weather

library reading rooms

 

areas

75 to 30 lx

5 to 3 lx

2 to 1 lx

0.3 to 0.1 lx

 

 

 

 

 

 

 

 

 

 

 

 

Car parks,

Theater seating

Hospitals at night

Full moon

warehouses

 

 

 

 

 

 

*Approximate values

Backlight compensation

When filming in directions with backlighting such as entrance ways or windows where the backlighting causes the subject to appear as a silhouette, this function automatically adjusts to the most appropriate aperture.

Without backlight

With backlight

compensation

compensation

Subject appears as a

Subject appears

silhouette against

clear and sharp

bright background.

 

SANYO CCD cameras use four systems: center-zone photometry system, 5-section photometry mode setting, multi-spot photometry (48 / 64-section) systems and multi-spot masking.

With the center-zone photometry system, the brightness of the light measuring area is measured, and by automatic adjustment of the lens aperture, a clear and sharp image is possible even when the subject is backlit.

With this system, the light measuring area is in the center of the screen

for an optimal image of the subject.

 

 

With the 5-section

1

 

An example of weight setting:

 

 

photometry system, the

 

 

 

Top = 1, Bottom = 5, Left = 10,

 

 

 

screen is divided into 5

10

15

10 Right = 10, Center (fixed) = 15.

 

 

 

The size and position of the

5

 

sections to which the user

 

Center area is adjustable.

 

 

 

will assign 15-scale weights. The brightness of the picture will be kept at optimum by giving priority to the area with the higher weight. (A DC type auto-iris lens is required to enable this mode.)

With the multi-spot photometry (48/64-section) system, the screen is divided into 48 / 64 areas on which luminous intensity is measured separately to determine the lighting/backlight conditions of all objects. This makes it possible to apply optimum backlight compensation even for peripheral and moving objects.

With the multi-spot masking (48-sections) system, certain areas can be eliminated from the photometric

measurement using a 48-section grid. The light intensity for the

remaining area is measured and the image brightness is adjusted accordingly.

White-balance (color cameras only)

Sometimes the color of clothes seen under lighting inside a shop appears different when viewed in sunlight outside. This is due to variation in the color temperature of the light source. The human eye is highly adaptable to variation in the color temperature of light sources so that even when the light source changes, white appears as white. But CCD adaptability is poor, and to reproduce unbalanced white when the light source changes, correction of the image signal is necessary.

All SANYO color CCD cameras have TTL (Through The Lens) auto tracing white-balance, so even in a location with significant variation in color temperature of the light sources, such as next to a window, the image is automatically adjusted accordingly to achieve the best color.

Synchronizing system

This is the timing used by the security camera when filming (synchronizing). There are sync systems that synchronize with the internal sync signal circuit (internal sync.), or that synchronize with a sync signal input to the security camera from outside (external sync.), or those that use the cycle of the camera's AC power to synchronize (line lock). When switching between several security cameras for surveillance using one monitor, synchronizing the cameras is necessary. For this, the line lock and external sync systems are used.

SSP

SSP (RS-485) compatible

 

By using SSP (SANYO Security Serial Protocol), cameras and DVRs can be controlled with just one controller over a daisy chain connection up to a maximum of 254 devices. The maximum cable length (total length of the daisy chain path) is 1200 m (4000 feet).

Iris

The aperture that is adjusted to control the amount of light entering the lens depending on the lighting conditions. If the lighting is consistent, a fixed exposure is used; if the lighting fluctuates, auto- exposure uses is used.

24V AC

220V to

Power Sources

12V to

15V DC

230V

The power sources for driving the camera.

 

*Images used may differ slightly from actually recorded scenes.

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