Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical pickup device and optical disc apparatus applying the same

An optical pickup, optical disc technology, applied in beam guiding devices, optical recording heads, recording/reproducing by optical methods, etc., can solve the problems of unconfirmed compatibility, difficult for users to select and store information, etc.

Inactive Publication Date: 2012-07-18
SAMSUNG ELECTRONICS CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the aspect ratio of the light spot on the disc may be a value not equal to 1, and therefore, since discs of various sizes exist in the market, it is difficult for the user to select and store information without confirming the compatibility of the disc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical pickup device and optical disc apparatus applying the same
  • Optical pickup device and optical disc apparatus applying the same
  • Optical pickup device and optical disc apparatus applying the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Certain exemplary embodiments will now be described in more detail with reference to the accompanying drawings.

[0044] In the following description, the same reference numerals are used for the same elements even in different drawings. The matters described herein, such as the specific configuration and elements, are provided to facilitate a thorough understanding of the exemplary embodiments. Therefore, it is apparent that the exemplary embodiments can be practiced without those specifically defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the description with unnecessary detail.

[0045] figure 1 is a perspective view schematically showing the configuration of the optical pickup device according to the exemplary embodiment;

[0046] figure 2 is a plan view showing the arrangement of the optical pickup device according to the exemplary embodiment.

[0047] The optical pickup device 100 records infor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an optical pickup device and an optical disc apparatus applying the same. The device includes a semiconductor laser light source which outputs linearly-polarized light having an elliptical shape, an objective lens which focuses light outputted from the semiconductor laser light source, forming an optical spot on an optical disc; and a polarization plate which is disposed placed on an optical path between the semiconductor laser light source and the objective lens, and which polarizes the light outputted from the semiconductor laser light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to or perpendicular to a major axis of the elliptical shape of the light.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2011-0002398 filed with the Korean Intellectual Property Office on Jan. 10, 2011, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] Apparatus and methods consistent with the exemplary embodiments relate to an optical pickup apparatus and an optical disc apparatus including the same, and more particularly, to an optical pickup apparatus capable of adjusting the shape of a light spot by using a wave plate and including the optical pickup apparatus. An optical disc device with an optical pickup. Background technique [0003] According to the development of image and audio storage media, discs that can record / store high-definition image information and high-quality audio information for a long period of time have been developed and commercialized. [0004] A disk is a recording medium in which data can be recorded and / or reproduced by forming many pit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/1365G11B7/1374G11B7/09
CPCG11B7/1365G11B7/1398G11B7/135
Inventor 朴城秀朴寿韩洪政佑朴世濬申东瑨森下一郎
Owner SAMSUNG ELECTRONICS CO LTD