제품소개

Optical Pick-up

사업소개

광픽업(OPU:Optical Pick Up)은 Laser를 이용하여 음성, 화상, 일반 Data 등의 유용한 정보를 Optical Disc(CD, DVD, BD등)에 기록하거나,
Optical Disc에 기록된 정보를 재생하는 광학장치를 말합니다.

저장용량

제품소개

광픽업(OPU:Optical Pick Up) 분야는 크게 DVD, Blu-ray로 나누어집니다. 아이엠은 DVD용 픽업, Deck, Loader와 Blu-ray용 픽업 등을 생산하고 있습니다.

    Mechanical Specifications

    Items Specifications
    Objective Lens Focal Length (f) DVD(3.05mm), CD(3.08mm)
    Working Distance (W.D.) DVD(1.70mm), CD(1.34mm)
    Laser Diode Type Twin Multi mode LD
    Laser Wave Length DVD(640-660nm), CD(775-805nm)
    Actuator Focus Sensitivity (5hz) 1.5 ± 0.4mm/V
    Tracking Sensitivity (5hz) 1.1 ± 0.3mm/V
    Error Signal Detection Method Focus Error Signal Differential Phase Detection Method for DVD
    Tracking Error 3-Beam Method for CD

    Mechanical Specifications

    Items Specifications
    Weight 100g
    Dimension 105(W) * 83.5(D) * 23.2(h) mm
    Movable Distance of Objective Lens Focus Axis : Up (0.85mm against reference for DVD/CD
    Down (0.85mm against reference for DVD/CD)
    Tracking Axis : ± 0.50mm or more
    Sled Motor Rated Load Speed 1,410 ± 250 rpm
    (Applied Vtg 2.0V) Starting Torque 0.78mN.m
    Feed Mechanism Access Time (2.0V) < 3.5sec (one way)D

    Mechanical Specifications

    Items Specifications
    Weight 250g
    Dimension 136(W) * 173(D) * 28(H) / 37(H) mm
    Movable Distance of Objective Lens Focus Axis : Up (0.85mm against reference for DVD/CD
    Down (0.85mm against reference for DVD/CD)
    Tracking Axis : ± 0.50mm or more
    Loading Motor Rated Load Speed 1,410 ± 250 rpm
    (Applied Vtg 2.0V) Starting Torque 0.78mN.m
    Feed Mechanism Access Time (5.0V) < 3.5sec (one way)D

    Recoding Capacity

    25GB

    Laser Wavelength

    405nm (Blue-Violet Laser)

    Lens Numerical Apature (NA)

    0.85

    Data Transfer Rate

    40Mbps

    Disc Diameter

    120mm (Same as CD and DVD)

    Diac Thickness

    1.2mm

    Disc Substrate

    0.1mm

    Track Pitch

    0.32nm

    Shortest Pt Length

    0.149um

    Video Recording Format

    MPEG2 Video

    Audio Recording Format

    AC3, MPEG1, Layer2, etc.