HV-D27A
color camera is a separate type camera head utilizing
three CCDs in a compact and light weight and camera
control unit (CCU) system. By utilizing 410,000
pixels (470,000 pixels PAL) CCDs in addition to
single LSI chip digital circuit construction from
processor to encoder, both high picture quality
and high stability have been achieved. CCD size
is 1/2-inch for the HV-D27A. Hitachi's extensive
experience in broadcast and industrial color cameras
has lead to an exclusive 14-bit digital processing
technology that provides a host of important functions
in a newly developed LSI device. The high quality
signal processing and image compensating functions
were unattainable in earlier analog cameras. The
versatile C mount also allows use with a broad
range of optical systems and opens up applications
in a wide variety of fields, factory automation,
image processing, microscope technology etc.
Single chip LSI camera signal processor
C mount
High resolution
High S/N
High sensitivity
Digital processing enables quality
enhancement functions
Auto shading compensation (ASC)
CCD drive functions
Versatile pickup functions
Bi-directional data transferSwitchable
video signal outputs
Specifications
Optical
system
1/2
inch F1.6 prism
Imaging
system
R,
G, B 3 CCD
NTSC
PAL
Picture
elements
1/2-inch
interline transfer CCD
Total pixels
811
(H) × 508 (V)
795
(H) × 596 (V)
Effective pixels
768
(H) × 494 (V)
752
(H) × 582 (V)
Effective image area
6.34
(H) × 4.76 (V) mm
6.35
(H) × 4.78(V) mm
Scanning system
2:1
interlaced
Scanning
frequency
NTSC
PAL
Hor.
15.734
kHz
15.625
kHz
Vert.
59.94
kHz
50
Hz
Encoder system
2:1
interlaced
Sync
system
Internal/external
Horizontal
resolution
800
TV lines, luminance signal center
S/N
NTSC
PAL
62
dB type (DNR on), 59 dB type (DNR off)
60
dB type (DNR on), 57 dB type (DNR off)
Standard
sensitivity
2000
lx, F11
Minimum
illumination
0.5
lx (50IRE F1.6)
Gamma
correction
0.45/1.0
(on/off)
Geometric
distortion
Full
screen 0% (not including lens characteristics)
Registration
Full
screen 0.05% (not including lens characteristics)
Vertical
contour compensation
2H
Lens
mount
C
mount (flangeback 17.526 mm in air)
Sensitivity
selection
AGC
(0 to +24 dB)
or GAIN (0 to +24 dB step1dB or step 3 dB on remote
control menu)
Detail
control
DTL
level and frequency
Scene
files
4
Files
Digital
gain
+6
dB, +12 dB sensitivity increase by digital signal
processing
NTSC
1/60.38 to 1/2039 second (step 1H), to 1/100,000
second (step approx. 10% video level)
PAL 1/50.31 to 1/2024 second (step 1H) to 1/100,000
second (step approx. 10% video level)
AES:
Off
to approx. 1/100,000 second
Long
term integration:
Field/frame
integration selectable
Field
integration
NTSC
1/30 to approx. 4 seconds (1 frame steps)
PAL 1/25 to approx. 4 seconds (1 frame steps)
Frame
integration
NTSC
1/30 to approx. 8 seconds (1 frame steps)
PAL 1/25 to approx. 8 seconds (1 frame steps)
