JPS6427041A - Cartridge for measuring output of optical head - Google Patents

Cartridge for measuring output of optical head

Info

Publication number
JPS6427041A
JPS6427041A JP18394087A JP18394087A JPS6427041A JP S6427041 A JPS6427041 A JP S6427041A JP 18394087 A JP18394087 A JP 18394087A JP 18394087 A JP18394087 A JP 18394087A JP S6427041 A JPS6427041 A JP S6427041A
Authority
JP
Japan
Prior art keywords
cartridge
optical head
optical disk
disk device
optical
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP18394087A
Other languages
Japanese (ja)
Inventor
Yoshinori Sasaki
Kinya Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP18394087A priority Critical patent/JPS6427041A/en
Publication of JPS6427041A publication Critical patent/JPS6427041A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)

Abstract

PURPOSE:To measure an output of an emitted light beam from an optical head by only installing the titled cartridge to an optical disk device, by providing an optical head access window on a position corresponding to an optical head in the optical disk device in a box-shaped case having the same outside dimension as that of an optical disk cartridge. CONSTITUTION:A cartridge 1 has the same outside dimension as that of an optical disk cartridge of an object to be measured, and an optical head access window 4 of the center part is shielded with a cover 2 in a usual state. At the time of measuring an output of an optical head of an optical disk device by this cartridge 1, the cover 2 is opened by only installing this cartridge to the optical disk device which is set in advance to a test mode for a measurement, a light beam emitted from the optical head is emitted to a photodetector 3, and an output of the photodetector 3 passes through a lead wire 6 and transferred to a specific pin of a connector 5. Accordingly, by fetching its signal to the outside from this specific pin, a desired measurement can be executed.
JP18394087A 1987-07-22 1987-07-22 Cartridge for measuring output of optical head Pending JPS6427041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18394087A JPS6427041A (en) 1987-07-22 1987-07-22 Cartridge for measuring output of optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18394087A JPS6427041A (en) 1987-07-22 1987-07-22 Cartridge for measuring output of optical head

Publications (1)

Publication Number Publication Date
JPS6427041A true JPS6427041A (en) 1989-01-30

Family

ID=16144467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18394087A Pending JPS6427041A (en) 1987-07-22 1987-07-22 Cartridge for measuring output of optical head

Country Status (1)

Country Link
JP (1) JPS6427041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978110A (en) * 1982-10-28 1984-05-04 Kumiai Chem Ind Co Ltd Dust for agricultural and horticultural sterilization

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978110A (en) * 1982-10-28 1984-05-04 Kumiai Chem Ind Co Ltd Dust for agricultural and horticultural sterilization

Similar Documents

Publication Publication Date Title
EP0214040A3 (en) Fiber-optic sensor and method of use
US2451501A (en) Specular reflectometer
DE3429541C2 (en)
EP0274403A3 (en) Light absorption analyser
US4921351A (en) Spectrophotometer comprising a xenon flashtube as a light source
GB1231907A (en)
SU1327801A3 (en) Device for measuring light transmission
JPS6427041A (en) Cartridge for measuring output of optical head
JPS6024423B2 (en) Automatic sample analyzer
ES444659A1 (en) Method and apparatus for discriminating against extraneous particles in optical testing
JPH0512657B2 (en)
JPS56145323A (en) Spectrophotometer
JPS5236081A (en) Optical part for colorimeter
JPS57147039A (en) Data discriminating device for photometer
JPS5739308A (en) Automatic measuring device for crack length
JPS6432152A (en) Moisture meter
SU771484A2 (en) Method of checking photocolorimetric gas analyzers
JPS5566725A (en) Temperature detector
JPS5666713A (en) Measuring device of beam diameter of laser light
JPS5311080A (en) Colorimeter
SU1481602A1 (en) Transparency meter
JPS6449942A (en) Physical property measuring instrument for liquid
JPS5977340A (en) Reflectivity measuring device
JPS5742861A (en) Noncontacting electrometer
JPS6449936A (en) Optical densitometer