JPS56140304A - Optical switching element - Google Patents

Optical switching element

Info

Publication number
JPS56140304A
JPS56140304A JP4280180A JP4280180A JPS56140304A JP S56140304 A JPS56140304 A JP S56140304A JP 4280180 A JP4280180 A JP 4280180A JP 4280180 A JP4280180 A JP 4280180A JP S56140304 A JPS56140304 A JP S56140304A
Authority
JP
Japan
Prior art keywords
prisms
switching element
reflection surfaces
ray
side faces
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
JP4280180A
Other languages
Japanese (ja)
Inventor
Takaichi Watanabe
Koichi Asatani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4280180A priority Critical patent/JPS56140304A/en
Publication of JPS56140304A publication Critical patent/JPS56140304A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3524—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3524—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive
    • G02B6/3528—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive the optical element being a prism
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
    • G02B6/352—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror the reflective optical element having a shaped reflective surface, e.g. a reflective element comprising several reflective surfaces or facets that function together

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To form an optical switching element free from reflection loss by adding total reflection prisms of polygonal columns on the reflection surfaces of a pentagonal prism. CONSTITUTION:Prisms 101, 102 polygonal columns, for example, roof shape, of glass or the like having plural total reflection surfaces are added to the reflection surfaces 61, 62 of a pentagonal prism 5 adjacent to the diametrically opposing two side faces of the internal angle 90 deg.. If a ray 31 is entered roughly perpendicuraly to one of the two diametrically opposing side faces of the internal angle 90 deg., the ray 31 is reflected successively on the reflection surfaces of the prisms 101, 102, and is taken out as a roughly perpendicular ray 32 from the other side face of the diametrically opposing side faces of the internal angle 90 deg.. By the addition of such prisms, the incident angle of light is increased and the light is taken out with no losses. Hence, if this element is used as an optical switching element in place of the pentagonal prism 5 alone, the optical path is changed over with no losses. In this way, the loss-free switching element utilizing total reflection is formed.
JP4280180A 1980-04-03 1980-04-03 Optical switching element Pending JPS56140304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4280180A JPS56140304A (en) 1980-04-03 1980-04-03 Optical switching element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4280180A JPS56140304A (en) 1980-04-03 1980-04-03 Optical switching element

Publications (1)

Publication Number Publication Date
JPS56140304A true JPS56140304A (en) 1981-11-02

Family

ID=12646063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4280180A Pending JPS56140304A (en) 1980-04-03 1980-04-03 Optical switching element

Country Status (1)

Country Link
JP (1) JPS56140304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018193924A1 (en) * 2017-04-19 2018-10-25 日本分光株式会社 Total internal reflection optical member, and total internal reflection measuring device provided with same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018193924A1 (en) * 2017-04-19 2018-10-25 日本分光株式会社 Total internal reflection optical member, and total internal reflection measuring device provided with same

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