ITEM:
Model: CCTV-Camera Bossan BSA-1904CH
Brand: Bossan
New
Bossan CCTV
Dome Camera 1/4" IR Infrared
Color 800TVL 4PC Strong Array LAMP/LED
• Bossan dome CCTV Camera
•
360° left to
right, 250° up/down
adjustable view angle
•
High quality HD CMOS
CCD sensor With IR-Cut
•
Horizontal resolution:
420TV line
•
4pcs Array infrared
Light/LED
•
Infrared distance: 30
meters
•
Excellent Affordable
Price
Purpose of IR Filter in
Color Cameras
An IR filter or IR cut
filter - is a color filter
blocking the infrared light. There are several good reasons for using
an IR-cut
filter. Using a color camera to achieve realistic colors in white light
requires an IR-cut filter. The color spectrum seen by the human eye is
quite
limited compared to the spectrum seen by a CCD camera. Especially, in
the near
infrared region of the spectrum the difference in sensitivity is
significant.
This is important to know since many light sources, including the sun,
emit
infrared light. A CCD color camera in daylight without an IR-cut filter
will
therefore see a significant amount of infrared light resulting in
strange
colors. Another reason for using an IR-cut filter is the limited color
correction for many lenses. It is difficult to design imaging optics
covering
both the visible spectrum and the near infrared spectrum at the same
time.
Therefore, many lenses have different depth of focus for the visible
and the
infrared spectrum. Anyway, the IR-cut filter cuts away a significant
amount of
the overall collected light and thereby affects the sensitivity in a
negative
way. In general, color cameras are one factor less sensitive compared
to
monochrome (depending on the CCD chip). This is primarily due to the
IR-cut
filter.
Why
800TVL ?
An
important specification of any security camera is its resolution. If
you don’t have the correct resolution for your type of
security needs, you may end up with unclear and blurry images.
The
size and quality of your video are determined by the camera’s
lines of resolution. Television lines (or TVL) are typically used to
reference to analog video quality while pixels are used to refer to
digital resolution (IP Cameras).
TVL
specifies the amount of vertical lines (= Horizontal Resolution) that
are able to be seen. The standard National Television System Committee
(NTSC) analog video is made up of 480 interlaced horizontal
lines.
Typical TVL
Resolutions:
• 480 TVL:
510
x 492
• 600 TVL:
768
x 494
• 650 TVL:
811
x 508
• 800 TVL:
976
x 582
|
Model
|
Bossan
BSA-1904CH
|
|
Image
Pick up Device
|
1/4"
Color CMOS
HD WIth IR Cut
|
|
Effective
Pixel
|
PAL:
796H×582V
|
|
View
Area
|
Adjustable:
360° left to right, 250° up/down
|
|
Horizontal
Resolution
|
800TVline
|
|
Minimum
Illumination
|
0.0Lux(?????/IR ON)
|
|
S/N
Ratio
|
≥48dB
|
|
Video
Output
|
1.0Vp-p/75Ω
BNC
|
|
White
Balance
|
Auto
|
|
Electronic
Shutter
|
1/50(1/60)-1/100000seconds
|
|
Synchronization
|
Internal
Sync
|
|
LED
#
|
4
pcs Array
Lamp/Light
|
|
Infrared
Distance
|
30m
|
|
Lens
|
3.6mm
|
|
Working
Voltage /
Amp
|
DC12V±5%,
2A
|
| OperatingTemperature |
-30 to +50
degrees C |
|
Size
(DxH)
|
110x80mm
|
Package Content:
1 x 1/4" CCTV 800 TVL
Bossan BSA-1904CH Dome
Camera
1 x User Manual
1 x Packing Box
Thanks
for visit.