JPS57173983A - Illuminating device using solid light emitting element - Google Patents

Illuminating device using solid light emitting element

Info

Publication number
JPS57173983A
JPS57173983A JP56059595A JP5959581A JPS57173983A JP S57173983 A JPS57173983 A JP S57173983A JP 56059595 A JP56059595 A JP 56059595A JP 5959581 A JP5959581 A JP 5959581A JP S57173983 A JPS57173983 A JP S57173983A
Authority
JP
Japan
Prior art keywords
light emitting
reflector
flux
emitting surface
constitution
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
JP56059595A
Other languages
Japanese (ja)
Inventor
Junichi Kitabayashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56059595A priority Critical patent/JPS57173983A/en
Publication of JPS57173983A publication Critical patent/JPS57173983A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements

Abstract

PURPOSE:To enhance illumination efficiency for a simple constitution, by arranging so that the normal of the light emitting surface of a solid light emitting element and the major axis of a reflector constituted of a quadric are approx. crossed in a right angle. CONSTITUTION:A reflector 40 having conics is a ellipticylinder with the focus O on the light emitting surface 20 and illuminated part. The reflector is positioned in a relation of being crossed approx. in a right angle in the major axis direction B-B' with the light emitting surface of individual solid LED in the normal direction A-A'. The ranges of upward flux of light in the normal direction A-A' and flux in the neighborhood among the flux of light emitted from the solid LED 10 are largest in brightness distribution with the flux in this range focused on the point O on the illuminated part by the reflection from the reflector. Thus, an illuminating device available for a good efficiency constitution is obtained without using a cylindrical lens.
JP56059595A 1981-04-20 1981-04-20 Illuminating device using solid light emitting element Pending JPS57173983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56059595A JPS57173983A (en) 1981-04-20 1981-04-20 Illuminating device using solid light emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56059595A JPS57173983A (en) 1981-04-20 1981-04-20 Illuminating device using solid light emitting element

Publications (1)

Publication Number Publication Date
JPS57173983A true JPS57173983A (en) 1982-10-26

Family

ID=13117746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56059595A Pending JPS57173983A (en) 1981-04-20 1981-04-20 Illuminating device using solid light emitting element

Country Status (1)

Country Link
JP (1) JPS57173983A (en)

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