CN2199421Y

CN2199421Y - Multipurpose discharge lamp

Info

Publication number: CN2199421Y
Application number: CN 94242451
Authority: CN
Inventors: 陈宗柱
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 1994-08-24
Filing date: 1994-08-24
Publication date: 1995-05-31
Anticipated expiration: 2004-08-24

Abstract

The utility model relates to a multipurpose discharge lamp which can emit red light, blue light, white light and intermediate light color among the red light, the blue light and the white light in the same lamp tube. The utility model is composed of a lamp tube, a lamp fitting and a controller. Fluorescent powders capable of emitting white light are coated on the half surface of the inner wall of the lamp tube. The lamp tube is filled with mixture gas including metallic vapour. The controller is composed of a steady-state discharge circuit, an unsteady state discharge circuit and a converting switch. The lamp tube can emit light of different colors as required. The utility model integrating decorative function, lighting function, indicating function, etc., has the advantages of multiple function, simple structure, easy fabrication, low cost, etc.

Description

Multipurpose discharge lamp

The utility model is a kind ofly to can be used for decorating, throw light on and the multipurpose discharge lamp of occasion such as indication, belongs to the electric light source technology field.

A common electric light source or be used for illumination perhaps is used for decorating, and perhaps is used for different occasions such as indication.Maximum as illuminating electric light source class.As variable photochromic electric light source products, it all is indirect variable color light emitting-type, be that photochromic that luminous element itself sends do not change in time, generally can be divided into two classes: a class is to form Color-changing lamp, for example optical fiber Color-changing lamp, variable color suspension lamp etc. with an illuminating source (incandescent lamp commonly used); Another kind of is to form with sending different photochromic light sources more than three or three, and it utilizes Red Green Blue or three above illuminant colours to mix by different brightness ratios, thereby obtains various photochromic.Existing Color-changing lamp product structure complexity, cost height, range of application are restricted.

The purpose of this utility model is at the deficiencies in the prior art, provide a kind of and can controllably send the photochromic multipurpose discharge lamp in ruddiness, blue light, white light and the centre between them at same fluorescent tube, it can integrate functions such as decoration, illumination and indication, and simple in structure, with low cost.

The utility model can be made up of fluorescent tube, light fixture and controller, be characterized in that the tube inner wall demifacet scribbles the fluorescent material that can send white light, be filled with mist (comprising metal vapors) in the fluorescent tube, controller leaves shape by steady-state discharge circuit, unstable state discharge circuit and conversion and constitutes, the input termination AC power of controller, output is connected with fluorescent tube.The fluorescent material that the tube inner wall demifacet is coated with can be rare-earth trichromatic fluorescent powder, it perhaps is illuminating halogen calcium phosphate fluoressent powder, the mist that fills in the fluorescent tube (comprising metal vapors) can be neon and mercury vapour, lamp tube shapes can adopt common straight pipe type, its cross section is circular, and lamp tube electrode can be thermionic emission type (as oxide electrode) also can be cold electrode structure (as copper electrode, nickel-plated iron electrode).Light fixture can be made of cylindric lampshade, fluorescent tube swing handle, power supply and photochromic alteration switch, the photochromic knob of adjusting.Cylindric lampshade is made up of the quadrant tube of a fixing semicircular cylinder and two rotations.When two rotating quadrant tubes overlapped with a fixing semicircular cylinder position, the light-emitting window of lampshade was maximum, and the movable part of manual adjustments lampshade can make the light-emitting window of lampshade change in 0 °～180 ° scope.Regulate the fluorescent tube swing handle, can make the demifacet of fluorescent tube or aim at the light-emitting window of lampshade luminous outwardly less than demifacet.The steady-state discharge circuit of controller adopts DC circuit (as voltage doubling rectifing circuit or other dc high-voltage circuit), alternating current circuit (as the Inductive ballast circuit) or high-frequency circuit (as circuit of electronic ballast).The unstable state discharge circuit adopts thyristor controlled pulse boostering circuit, transformer push-pull inverter circuit or transistor switch control rectangular pulse circuit.

The utility model compared with prior art, have advantages such as simple in structure, with low cost and applied widely, can controllably send ruddiness, blue light, white light and the centre between them photochromic (as pink, purplish red, light red, pale blue etc.) with same fluorescent tube, help realizing function integrations such as decoration, illumination, indication, can be as required, make fluorescent tube send different colours, be specially adapted to the indoor photochromic occasion of change that needs, can make multiple styles such as standard lamp, wall lamp, desk lamp, track lamp.

Fig. 1 is the embodiment circuit theory diagrams; Fig. 2 is cylindric lampshade cross sectional representation, and wherein (a) is the fluorescent tube position that emits white light outwardly, (b) glows outwardly for fluorescent tube, position such as blue light, (c) sends out light red outwardly or the pale blue optical position for fluorescent tube; Fig. 3 is the standard lamp structural representation; Fig. 4 is a wall hanging modulated structure schematic diagram.

The utility model can be realized by scheme shown in the drawings.Controller can adopt scheme shown in Figure 1, and wherein the steady-state discharge circuit is by diode D ₁And D ₂, capacitor C ₁And C ₂And resistance R ₁Constitute voltage doubling rectifing circuit, the unstable state discharge circuit is by diode D ₃With diac D ₄, capacitor C ₃And C ₄, controllable silicon SCR, resistance R ₃, R ₄And R ₅, transformer T constitutes thyristor controlled pulse boostering circuit.Steady-state discharge circuit and unstable state discharge circuit can be realized switching on and off by change over switch K, by regulating the adjustable resistance R of unstable state discharge circuit ₃, can realize the variable color of lamp luminescence.For example adopt neon and mercury vapour for producing the luminous and ultraviolet luminescence medium of 253.7nm of variable color, if electron energy is less during discharge, be excitation energy and the ionization energy of electron energy greater than mercury, and less than the excitation energy of neon, then mercury atom is excited and ionization in large quantities, sends the characteristic spectral line blue light and the 253.7nm ultraviolet light of reflection mercury; If electron energy is bigger during discharge, promptly greater than the excitation energy and the ionization energy of neon, this moment, discharge color depended primarily on the redness of neon, when fluorescent tube during by the steady-state discharge circuit supply, electron energy is less in the discharge, if the demifacet that fluorescent tube is coated with fluorescent material outwardly, shown in Fig. 2 (a), the rare-earth trichromatic fluorescent powder that the tube inner wall demifacet is coated with sends white light under the 258.7nm ultraviolet irradiation, can use for general lighting; If adopt the power supply of unstable state discharge circuit this moment, fluorescent tube also emits white light outwardly, but brightness is lower.When fluorescent tube is powered by the unstable state discharge circuit, electron energy is bigger in the discharge, and the size of regulating electron energy within the specific limits, if the side that fluorescent tube is not coated with fluorescent material outwardly, shown in Fig. 2 (b), and adopt the power supply of unstable state discharge circuit, fluorescent tube (1) to glow outwardly and ruddiness and blue light between the centre photochromic; If adopt the steady-state discharge circuit supply this moment, fluorescent tube blue light-emitting outwardly then.Adopt steady-state discharge circuit or the power supply of unstable state discharge circuit when fluorescent tube is in the position shown in Fig. 2 (c), fluorescent tube will send pale blue or light red photochromic respectively outwardly.The movable part of slip lampshade (3) and (4) can change the size of light-emitting window, and (2) are the standing part of lampshade.A kind of console mode multipurpose discharge lamp can adopt structure as shown in Figure 3, by rotating fluorescent tube handle (5), the different parts that can make fluorescent tube outwardly, all places for example shown in Figure 2, (6) be power supply and photochromic alteration switch, (7) are the photochromic knob of adjusting.Fig. 4 is a kind of structural representation of wall-hanging multipurpose discharge lamp.

Claims

1, a kind ofly can be used for decorating, throw light on and the multipurpose discharge lamp of occasion such as indication, form by fluorescent tube, light fixture and controller, it is characterized in that the tube inner wall demifacet scribbles the fluorescent material that can send white light, be filled with mist (comprising metal vapors) in the fluorescent tube, controller is made of steady-state discharge circuit, unstable state discharge circuit and change over switch, the input termination AC power of controller, output is connected with fluorescent tube.

2, multipurpose discharge lamp according to claim 1 is characterized in that the fluorescent material that the tube inner wall demifacet is coated with is rare-earth trichromatic fluorescent powder or illumination halogen calcium phosphate fluoressent powder; The mist that fills in the fluorescent tube (comprising metal vapors) is neon and mercury vapour; The electrode of fluorescent tube is thermionic emission type (as oxide electrode) or cold electrode (as copper electrode, nickel-plated iron electrode).

3, multipurpose discharge lamp according to claim 1, the steady-state discharge circuit that it is characterized in that controller adopts DC circuit (as voltage doubling rectifing circuit or other dc high-voltage circuit), alternating current circuit (as the Inductive ballast circuit) or high-frequency circuit (as circuit of electronic ballast), and thyristor controlled pulse boostering circuit, transformer push-pull inverter circuit or transistor switch control rectangular pulse circuit are adopted in unstable state discharge road.

4, according to claim 1 or 3 described multipurpose discharge lamps, the steady-state discharge circuit that it is characterized in that controller is by diode D ₁And D ₂, capacitor C ₁And C ₂And resistance R ₁Constitute voltage doubling rectifing circuit, the unstable state discharge circuit is by diode D ₃With diac D ₄, capacitor C ₃And C ₄, controllable silicon SCR, resistance R ₃, R ₄, R ₅, transformer T constitutes thyristor controlled pulse boostering circuit.

5, multipurpose discharge lamp according to claim 1, it is characterized in that light fixture is made of cylindric lampshade, fluorescent tube swing handle, power supply and photochromic alteration switch, the photochromic knob of adjusting, cylindric lampshade adopts a fixing semicircular cylinder and two rotating quadrant barrel structures.