JPS56132307A - Condenser - Google Patents

Condenser

Info

Publication number
JPS56132307A
JPS56132307A JP3526080A JP3526080A JPS56132307A JP S56132307 A JPS56132307 A JP S56132307A JP 3526080 A JP3526080 A JP 3526080A JP 3526080 A JP3526080 A JP 3526080A JP S56132307 A JPS56132307 A JP S56132307A
Authority
JP
Japan
Prior art keywords
light
diameter end
photodetector
entering
reflection mirror
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
JP3526080A
Other languages
Japanese (ja)
Inventor
Hiroshi Takeuchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3526080A priority Critical patent/JPS56132307A/en
Publication of JPS56132307A publication Critical patent/JPS56132307A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0076—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a detector

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)
  • Lenses (AREA)

Abstract

PURPOSE:To condense the light incident at specific angles efficiently with simple constitution by using the small-diameter end of a reflection mirror of circular conical cylinder shape as a photodetecting window, providing a spherical mirror or condenser lens at the large-diameter end and disposing a photodetector at the focus thereof. CONSTITUTION:A spherical mirror 9 or a condenser lens 10 is provided at the large-diameter end of a reflection mirror 8 of a circular conical cylinder shape, and a photodetector 6 is disposed at the focus thereof. If the angle of the reflection mirror 8 to the centerline is defined as theta, the direct light (a) entering in parallel to the central axis and the light (b) entering at an angle of 2theta out of the incident light, for which the photodetecting window 2 is the small-diameter end, enter the photodetector 6. Thereby, the light entering stereoscopically in the front direction and at the specific set angle (2theta) are condensed efficiently with the simple constitution.
JP3526080A 1980-03-19 1980-03-19 Condenser Pending JPS56132307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3526080A JPS56132307A (en) 1980-03-19 1980-03-19 Condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3526080A JPS56132307A (en) 1980-03-19 1980-03-19 Condenser

Publications (1)

Publication Number Publication Date
JPS56132307A true JPS56132307A (en) 1981-10-16

Family

ID=12436831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3526080A Pending JPS56132307A (en) 1980-03-19 1980-03-19 Condenser

Country Status (1)

Country Link
JP (1) JPS56132307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6588545B1 (en) 1999-02-05 2003-07-08 Ok-no Lee Muffler for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6588545B1 (en) 1999-02-05 2003-07-08 Ok-no Lee Muffler for internal combustion engine

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