JPS55139753A - Illuminator - Google Patents

Illuminator

Info

Publication number
JPS55139753A
JPS55139753A JP4709579A JP4709579A JPS55139753A JP S55139753 A JPS55139753 A JP S55139753A JP 4709579 A JP4709579 A JP 4709579A JP 4709579 A JP4709579 A JP 4709579A JP S55139753 A JPS55139753 A JP S55139753A
Authority
JP
Japan
Prior art keywords
lamp
power
luminous tube
formulas
dimensions
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
JP4709579A
Other languages
Japanese (ja)
Inventor
Masahiro Dobashi
Ryo Suzuki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4709579A priority Critical patent/JPS55139753A/en
Publication of JPS55139753A publication Critical patent/JPS55139753A/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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/88—Lamps with discharge constricted by high pressure with discharge additionally constricted by envelope

Abstract

PURPOSE:To stabilize lamp characteristics as well as reduce the consumption of power by lighting a high-pressure mercury lamp, having a shape and dimensions of luminous tube which satisfy a specific condition and a lamp voltage set within a specific range, by a constant-power or phase-advance type stabilizer. CONSTITUTION:A high-pressure mercury lamp, having a lamp voltage of 100- 120V and shape and dimensions (of the luminous tube 1) satisfying the reguirements of the formulas 1-4, is lighted by a constant-power or phase-advance type stabilizer. In the formulas 1-4, d is the inside diameter of the luminous tube 1, la is the distance between the electrodes 2, lc is the distance from the electrode 2 to sealed portion at the end, WL is lamp power, and (a) is the lowering rate of lamp power. Thus, stable lamp characteristics can be obtained and the saving of illuminating power is made possible without changing the kinds of lamp. In addition, the consumption of power can be reduced without causing a dispersion in illumination due to thinning-out lighting, etc.
JP4709579A 1979-04-17 1979-04-17 Illuminator Pending JPS55139753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4709579A JPS55139753A (en) 1979-04-17 1979-04-17 Illuminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4709579A JPS55139753A (en) 1979-04-17 1979-04-17 Illuminator

Publications (1)

Publication Number Publication Date
JPS55139753A true JPS55139753A (en) 1980-10-31

Family

ID=12765619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4709579A Pending JPS55139753A (en) 1979-04-17 1979-04-17 Illuminator

Country Status (1)

Country Link
JP (1) JPS55139753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0772800A (en) * 1993-07-08 1995-03-17 Higano:Kk Movable support base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0772800A (en) * 1993-07-08 1995-03-17 Higano:Kk Movable support base
JP2672067B2 (en) * 1993-07-08 1997-11-05 株式会社ヒガノ Movable support stand

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