We have dismantled Sony PS3 before, this time to introduce the most attention part of Sony PS3 Blu-ray drive. Sony PS3 Blu-ray link together lens while the semiconductor laser is also using three-wavelength laser. A shaved head can issue laser which is used in CD.

Blu-ray in the past always uses lemse and laser elements as a group, and is intended for using either CD/DVD in one group. Although the number of components will increase, CD/DVD components are cheaper also can bring better protection for Blu-ray stability.

The future trend is certainly developing into a oombination of small size laser device with the development of technology and components to upgrade production technology. And in addtion  volume production and cost will be advantages.

In fact, Sony PS2 has also taken the same approach when lanuched PS2. Sony developed a “two-wavelength laser” combined two parts. The requires technical ability can not compared to front though the way is the same. I believe that this is in order to reduce the cost of future, as well as do a preparation for miniaturization of optical thin.

On the other hand, the distance between HD DVD signal layer and disk surface is 0.6mm. So it is easy to put together with the optical system. It is expected to take into account the future co-designed lighting system.

Rotator and skinhead, one skinhead corresponds to CD,DVD and Blu-ray disc. Like Blu-ray combined together with CD/DVD lens is relatively rare so far.

The movable part of the drive are supported by four wire.
You can see three-wavelength laser by turning around the bald-head.
To further dismantle the metal sheets and other things that can be dismantled.

The whole appreance of optics. The innermost is the three-wavelength semiconductor laser.

Movable lenses hava sphcrical error correction role. Double ways is the first recording surface by reflecting light back through the lens material and lens twists and turns.

Blue bruises which is corresponding to blue light is turned to 90 degrees and into Blu-ray detector by laser splitter twists after the usual back and forth. Near-infrared or red light of CD/DVD will be turned 90 degrees by another optical splitter twists and into CD/DVD optical detector.