JPS6468710A - Compound optical system device - Google Patents

Compound optical system device

Info

Publication number
JPS6468710A
JPS6468710A JP62225613A JP22561387A JPS6468710A JP S6468710 A JPS6468710 A JP S6468710A JP 62225613 A JP62225613 A JP 62225613A JP 22561387 A JP22561387 A JP 22561387A JP S6468710 A JPS6468710 A JP S6468710A
Authority
JP
Japan
Prior art keywords
optical system
photodetector
light
optical axis
beam splitter
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.)
Granted
Application number
JP62225613A
Other languages
Japanese (ja)
Other versions
JP2531197B2 (en
Inventor
Satoshi Wakabayashi
Toru Nonoyama
Toru Tajime
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62225613A priority Critical patent/JP2531197B2/en
Publication of JPS6468710A publication Critical patent/JPS6468710A/en
Application granted granted Critical
Publication of JP2531197B2 publication Critical patent/JP2531197B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Spectrometry And Color Measurement (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To reduce the size of the titled compound optical system device by providing a dichroic beam splitter at right angles to the optical axis of a converging optical system and arranging a photodetector in a light shield area. CONSTITUTION:The dichroic beam splitter 5 is arranged in the optical path of convergent light between the focus position 15 of the converging optical system 3 and a 2nd reflecting mirror 2 at right angles to the optical axis of the converging optical system 3. Further, the photodetector 8b which detects light 6b with a 2nd wavelength band reflected by the dichroic beam splitter 5 is installed in the light shield area 16 formed in the converging optical system 3 by intercepting incident light to a 1st reflecting mirror 1 by the 2nd reflecting mirror 2. The photodetector 8b is therefore coaxial with the optical axis and the light shield area 16 is also coaxial, so even when the photodetector 8b is installed coaxially with the optical axis, the quantity of the incident light 4 is not spoiled. Consequently, the device is reduced in size on the whole.
JP62225613A 1987-09-09 1987-09-09 Compound optical system device Expired - Fee Related JP2531197B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62225613A JP2531197B2 (en) 1987-09-09 1987-09-09 Compound optical system device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62225613A JP2531197B2 (en) 1987-09-09 1987-09-09 Compound optical system device

Publications (2)

Publication Number Publication Date
JPS6468710A true JPS6468710A (en) 1989-03-14
JP2531197B2 JP2531197B2 (en) 1996-09-04

Family

ID=16832063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62225613A Expired - Fee Related JP2531197B2 (en) 1987-09-09 1987-09-09 Compound optical system device

Country Status (1)

Country Link
JP (1) JP2531197B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09304549A (en) * 1996-05-15 1997-11-28 Oputeikon:Kk Reflection-type photosensor
JP2011505018A (en) * 2007-11-27 2011-02-17 イーストマン コダック カンパニー Dual focal length lens system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09304549A (en) * 1996-05-15 1997-11-28 Oputeikon:Kk Reflection-type photosensor
JP2011505018A (en) * 2007-11-27 2011-02-17 イーストマン コダック カンパニー Dual focal length lens system

Also Published As

Publication number Publication date
JP2531197B2 (en) 1996-09-04

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees