JPS6084762A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS6084762A
JPS6084762A JP19278683A JP19278683A JPS6084762A JP S6084762 A JPS6084762 A JP S6084762A JP 19278683 A JP19278683 A JP 19278683A JP 19278683 A JP19278683 A JP 19278683A JP S6084762 A JPS6084762 A JP S6084762A
Authority
JP
Japan
Prior art keywords
ultraviolet rays
fluorescent lamp
outer tube
fluorescent material
film
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
JP19278683A
Other languages
Japanese (ja)
Inventor
Shuji Tamaru
修治 田丸
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 JP19278683A priority Critical patent/JPS6084762A/en
Publication of JPS6084762A publication Critical patent/JPS6084762A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To increase luminous efficiency of a fluorescent lamp by arranging a film which reflects ultraviolet rays and transmits visible rays between an outer tube of fluorescent lamp and fluorescent material. CONSTITUTION:A film 3 which reflects ultraviolet rays and transmits visible rays is arranged between an outer tube 1 of fluorescent lamp and fluorescent material 2. Most of ultraviolet rays generated by discharge in the lamp are absorbed in the fluorescent material 2 and converted into visible rays but part of ultraviolet rays transmits the fluorescent material 2. These transmitted ultraviolet rays are reflected by the film 3 and emitted again to the fluorescent material 2 to convert into visible rays. Therefore, ultraviolet rays which was wastefully absorbed in the outer tube 1 so far are effectively utilized and luminous efficiency of fluorescent lamp is increased.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は発光効率を高めた螢光ランプに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a fluorescent lamp with increased luminous efficiency.

従来例の構成とその問題点 従来の螢光ランプでは外管の内面に直接螢光体が塗布さ
れており、ランプ内で放電により発生した紫外線の大半
は螢光体で吸収され、可視光に変換されるが、一部は螢
光体を透過し外管で吸収される。この外管で吸収される
紫外線がむだになっている。Conventional structure and problems In conventional fluorescent lamps, phosphor is coated directly on the inner surface of the outer bulb, and most of the ultraviolet light generated by discharge inside the lamp is absorbed by the phosphor and converted into visible light. However, some of it passes through the phosphor and is absorbed by the outer tube. The ultraviolet light absorbed by this outer tube is wasted.

発明の目的 本発明は外管で吸収されていた紫外線を有効に利用し、
発光効率を高めた螢光ランプを提供することを目的とす
るものである。Purpose of the Invention The present invention effectively utilizes the ultraviolet rays previously absorbed by the outer tube.
The object of the present invention is to provide a fluorescent lamp with improved luminous efficiency.

発明の構成 前記目的を達成するだめの本発明は螢光ランプの外管と
螢光体の間に紫外線を反射し、可視光を透過する膜を設
けた構成とし、螢光体を透過した紫外線を再び螢光体方
向に反射させて可視光への変換に寄与させることにより
発光効率を高めたものである。Structure of the Invention To achieve the above object, the present invention has a structure in which a film is provided between the outer tube of the fluorescent lamp and the phosphor, which reflects ultraviolet rays and transmits visible light. The light emitting efficiency is improved by reflecting the light toward the phosphor again and contributing to the conversion into visible light.

実施例の説明 以下本発明の実施例を図面にもとづき説明する。Description of examples Embodiments of the present invention will be described below based on the drawings.

図において１は外管、２は螢光体であり、その間に紫外
線を反射し、可視光を透過する膜３が設けである。In the figure, 1 is an outer tube, 2 is a phosphor, and a film 3 that reflects ultraviolet rays and transmits visible light is provided between them.

前記構成においてラング内で放電により発生した紫外線
は、大半が螢光体２で吸収され、可視光に変換されるが
一部は螢光体を透過する。螢光体で変換された可視光は
膜３を透過しさらに外管１を透過して外部に出るが、螢
光体２を透過した紫外線は膜３で反射され、再び螢光体
２に当たり、可視光に変換される。いったん可視光に変
換されたものは、膜３および外管１を透過して外部に出
る。In the above configuration, most of the ultraviolet light generated by discharge within the rung is absorbed by the phosphor 2 and converted into visible light, but a portion of it is transmitted through the phosphor. The visible light converted by the phosphor passes through the membrane 3 and further passes through the outer tube 1 to exit outside, but the ultraviolet rays that pass through the phosphor 2 are reflected by the membrane 3 and hit the phosphor 2 again. converted into visible light. Once converted into visible light, it passes through the membrane 3 and the outer tube 1 and exits to the outside.

発明の効果 以上の実施例の説明より明らかなように本発明によれば
、外管で吸収されてむだになっていた紫外線を再び螢光
体方向に反射させることにより有効に利用し、螢光ラン
プの総合的な発光効率を高めることができる。Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the ultraviolet rays that were wasted by being absorbed by the outer tube are effectively utilized by reflecting them back toward the phosphor. The overall luminous efficiency of the lamp can be increased.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の実施例の螢光ランプの断面図である０ １・・・・・・外管、２・・・・・・螢光体、３・・・
・・・紫外線を反射し可視光を透過する膜。The figure is a cross-sectional view of a fluorescent lamp according to an embodiment of the present invention.
...A film that reflects ultraviolet rays and transmits visible light.

Claims (1)

【特許請求の範囲】[Claims] 外管と螢光体の間に紫外線を反射し、可視光を透過する
膜を設けたことを特徴とする螢光ランプ。A fluorescent lamp characterized by having a film between an outer bulb and a phosphor that reflects ultraviolet light and transmits visible light.
JP19278683A 1983-10-14 1983-10-14 Fluorescent lamp Pending JPS6084762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19278683A JPS6084762A (en) 1983-10-14 1983-10-14 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19278683A JPS6084762A (en) 1983-10-14 1983-10-14 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS6084762A true JPS6084762A (en) 1985-05-14

Family

ID=16296970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19278683A Pending JPS6084762A (en) 1983-10-14 1983-10-14 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS6084762A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799233A (en) * 1986-10-23 1989-01-17 The United States Of America As Represented By The United States Department Of Energy Flashlamp radiation recycling for enhanced pumping efficiency and reduced thermal load

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799233A (en) * 1986-10-23 1989-01-17 The United States Of America As Represented By The United States Department Of Energy Flashlamp radiation recycling for enhanced pumping efficiency and reduced thermal load

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