TW270203B - Optical pick-up head - Google Patents

Optical pick-up head

Info

Publication number
TW270203B
TW270203B TW84109081A TW84109081A TW270203B TW 270203 B TW270203 B TW 270203B TW 84109081 A TW84109081 A TW 84109081A TW 84109081 A TW84109081 A TW 84109081A TW 270203 B TW270203 B TW 270203B
Authority
TW
Taiwan
Prior art keywords
beam splitter
wavelength plate
quarter wavelength
polarized beam
light
Prior art date
Application number
TW84109081A
Other languages
Chinese (zh)
Inventor
Tzuo-Wenn Chyau
Jau-Jiu Ju
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW84109081A priority Critical patent/TW270203B/en
Application granted granted Critical
Publication of TW270203B publication Critical patent/TW270203B/en

Links

Landscapes

  • Optical Head (AREA)

Abstract

A miniaturized optical pick-up head for reading/writing optical disk comprises: one polarized beam splitter; one light source, closely near the first side of the above polarized beam splitter, for generating the light need by system; one first quarter wavelength plate installed on the opposite second side with respect to the first side of the above polarized beam splitter; one planar reflective mirror, closely near the above quarter wavelength plate, for emitting the above light that passes through the above polarized beam splitter and the above the first quarter wavelength plate; one second quarter wavelength plate installed on the third side of the above polarized beam splitter, thereby the light is reflected from the above planar reflecting mirror and passes through the above first quarter wavelength plate, then is reflected from the above polarized beam splitter and passes the second quarter wavelength plate, then is focused on the above optical disk.
TW84109081A 1995-08-29 1995-08-29 Optical pick-up head TW270203B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW84109081A TW270203B (en) 1995-08-29 1995-08-29 Optical pick-up head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW84109081A TW270203B (en) 1995-08-29 1995-08-29 Optical pick-up head

Publications (1)

Publication Number Publication Date
TW270203B true TW270203B (en) 1996-02-11

Family

ID=51396983

Family Applications (1)

Application Number Title Priority Date Filing Date
TW84109081A TW270203B (en) 1995-08-29 1995-08-29 Optical pick-up head

Country Status (1)

Country Link
TW (1) TW270203B (en)

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees