JPS55164333A - Light projecting and receiving equipment for detection - Google Patents

Light projecting and receiving equipment for detection

Info

Publication number
JPS55164333A
JPS55164333A JP7247379A JP7247379A JPS55164333A JP S55164333 A JPS55164333 A JP S55164333A JP 7247379 A JP7247379 A JP 7247379A JP 7247379 A JP7247379 A JP 7247379A JP S55164333 A JPS55164333 A JP S55164333A
Authority
JP
Japan
Prior art keywords
light
light beam
convex lens
concave mirror
angle alpha
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
JP7247379A
Other languages
Japanese (ja)
Inventor
Fujinori Kimura
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP7247379A priority Critical patent/JPS55164333A/en
Publication of JPS55164333A publication Critical patent/JPS55164333A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0422—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using light concentrators, collectors or condensers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To enhance a light receiving or light projecting efficiency and make the light projecting receiving equipment thin, by arranging a small-diameter convex lens or the optical axis of the concave mirror of the light projecting and receiving equipment and by arranging a light projecting and receiving element in the common focus position of the concave mirror and the convex lens. CONSTITUTION:Parallel light beam l approximately equal to diameter D1 of concave mirror 2 is incident onto light receiver 1. Parallel light beam l inside diameter D2 is converged by convex lens 3 and is incident directly onto light receiving element 4 in common focus position F. Parallel light beam l outside diameter D2 is reflected by reflection surface 2a of concave mirror 2 and is incident onto element 4 in focus F also. Now, though light beam l1 in the range of light receiving angle alpha of element 4 is reflected to act effectively upon element 4, light beam l2 outside the range of light receiving angle alpha comes around to the back face of element 4 and is outside light receiving angle alpha. Since this light beam is converged directly by convex lens 3, all light beams l1 and l2 are stored in light receiving angle alpha though this equipment is thin.
JP7247379A 1979-06-08 1979-06-08 Light projecting and receiving equipment for detection Pending JPS55164333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7247379A JPS55164333A (en) 1979-06-08 1979-06-08 Light projecting and receiving equipment for detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7247379A JPS55164333A (en) 1979-06-08 1979-06-08 Light projecting and receiving equipment for detection

Publications (1)

Publication Number Publication Date
JPS55164333A true JPS55164333A (en) 1980-12-22

Family

ID=13490314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7247379A Pending JPS55164333A (en) 1979-06-08 1979-06-08 Light projecting and receiving equipment for detection

Country Status (1)

Country Link
JP (1) JPS55164333A (en)

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