Size:430x48mm
The popular DVD technology uses a wavelength of 650nm red laser and
a 0.6 numerical aperture focusing lens, Disc thickness of 0.6mm.
The Blue-ray DVD technology uses a wavelength of 450nm blue-violet
laser, Through the wide-angle lens on a ratio of 0.85 numerical
aperture, Successfully focused spot size was extremely small degree
of shrinkage.
In addition, The Blue-ray DVD's disc structure using optical 0.1mm
thick transparent protective layer to reduce the rotating discs in
the process of reading and writing due to disorders caused by tilt,
Which makes it easier to read the disc data, And To significantly
increase storage densities possible.
Blue-ray DVD disc has a track pitch reduced to 0.32mm, is only half
of the current red DVD disc; While its records unit - grooves (or
phase-change chemicals unit) is the minimum diameter of 0.14mm, Is
also far DVD disc than the red light is much smaller 0.4mm groove.
Single-sided single-layer Blue-ray DVD disc storage capacity is
defined as 23.
3GB, 25GB and 27GB, With the highest capacity (27GB) is the current
red-sided single-layer DVD disc capacity (4.7GB) nearly six times
that of enough to store more than 2 hours playback time,
high-definition digital video content, Or more than 13 hours
playback time, The standard television programs (VHS format image
quality, 3.
8MB / s). This is only achieved single-sided single-layer capacity,
Like the traditional red DVD discs, Like Blue-ray DVD can also be
made of the same single-sided double-layer, Double-sided
double-layer.
- Packing:Giftbox
- Carton size: 49.0*50.0*32.0cm
- Quantity:5pcs
- N.W.:12.5kgs G.W.:14.5kgs
- 20' container:1800pcs
- 40' container:3800pcs
- 40' HQ container:4800pcs
