JPH10214602A - Rapid start type fluorescent lamp and lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluorescent lamp with little deterioration of luminous flux by a method wherein in a tubular light transmissive container with discharge medium sealed in it, a film thickness of a conductive coat at each part of the container in a tube axis direction is specified, and a phosphor coat is provided on its upper layer. SOLUTION: An air-tight tubular light transmissive container 1 with discharge medium containing mercury sealed in it, a pair of electrodes provided on both ends in the container, a transparent and conductive coat which is coated to an inner surface of the container 1 mainly with tin oxide or indium oxide and has a film thickness of not less than 25nm bit less than 60nm at a center portion L/2 of a length L in a tube axis direction of the container 1, and a film thickness of not less than 2nm but less than 25nm at 1/4 position from an end of the container, and a fluorescent substance coat on its upper layer are formed. By making this transparent and conductive coat distributed in thinner film thickness than that on the past, even of a resistance value is increased, the is no obstacle for its activation, and no blackening occurred. In addition, by making the entire coat thin, there is no waste of heat when making the coat, and generation of a part which is not reacted yet can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a rapid start type fluorescent lamp and a lighting device equipped with the lamp.

[0002]

2. Description of the Related Art Rapid start fluorescent lamps have excellent starting performance so that they are turned on immediately after switching on.
Further, since a lighting tube is unnecessary, it is widely used in offices, department stores, and the like.

As a rapid start type fluorescent lamp, there is known a lamp having a transparent conductive film such as tin oxide formed on the inner surface of a light-transmitting hermetic container to have a starting assisting function.

However, when the rapid start type fluorescent lamp having such a configuration is operated for a long time (1000 hours or more), the temperature of the hermetic container (bulb), which is about 10 to 30 cm from the end of the tube, is usually the lowest (usually the tube). A number of dark brown band-like spots (hereinafter referred to as EC blackening) are generated on the coldest part of the wall, which significantly deteriorates the appearance of the fluorescent lamp and lowers the luminous flux.

[0005] This is because a micro-discharge occurs between the mercury particles inside the airtight container (bulb) and the transparent conductive film, that is, a pseudo capacitor is composed of the transparent conductive film and the phosphor film, and the conductor is made of a pseudo capacitor. EC blackening occurs due to dielectric breakdown of a phosphor coating sandwiched between a certain transparent conductive coating and a plasma discharge path.

The transparent conductive film is formed by, for example, changing the temperature distribution along the tube axis (the central portion has a low resistance value, so that the temperature is high, the film thickness is large, and the resistance is high toward the end portion. The temperature is lower than that of the central part and the film thickness is made thinner.) The tin chloride solution is sprayed inward from the open end of the hermetic container (valve), and this is thermally decomposed to a predetermined electric resistance value distribution. Thus, a coating containing tin oxide as a main component and having a main component is obtained.

In forming the transparent conductive film, if the temperature distribution of the airtight container (valve) is lower than a predetermined value, the temperature is particularly low on the end side, so that a part of the transparent conductive film is formed. Unreacted parts occur. Then, when the lamp is irradiated with ultraviolet rays after completion of the lamp, the unreacted portion becomes conductive, the resistance value decreases as the lamp is lit, and EC blackening occurs.

[0008] In addition, yellowing or blackening may occur in the phosphor coating of the airtight container (bulb) near the electrode of the fluorescent lamp within a few hours of operation.

[0009] The occurrence of this EC blackening can be reduced by increasing the resistance value of the transparent conductive film at both ends of the airtight container (bulb) than at the center, thereby reducing the voltage applied to the phosphor film and blackening. It is possible to suppress
No. 78 is described and known.

[0010] Japanese Patent Application Laid-Open No. 7-65796 discloses that
It describes that the thickness (resistance value) of a transparent conductive film in each part of an airtight container (valve) is regulated. According to the description of this publication, when the transparent conductive film is less than the regulated film thickness, the resistance value increases, the starting voltage increases, and the standard value is not satisfied.

[0011]

However, the present inventors have further studied a transparent conductive film, and even if the thickness of the transparent conductive film over the entire area is reduced within a certain range to increase the resistance value, the present invention is not practical. There is no obstacle to starting on and
We found that there was no problem with blackening.

The present invention has been made in view of the above-described circumstances, and reduces the occurrence of blackening or discoloration that occurs as the lighting progresses on the inner surface of an airtight container (glass bulb). It is an object of the present invention to provide a rapid-start fluorescent lamp which is not inferior, and a lighting device equipped with the lamp.

[0013]

According to a first aspect of the present invention, there is provided a rapid start type fluorescent lamp having a tubular translucent airtight container in which a discharge medium containing mercury is sealed, and provided at both ends of the container. And a thickness of 25 nm or more at a central portion L / 2 of a length L in the tube axis direction of the container, which is mainly made of tin oxide or indium oxide.
A transparent conductive film having a thickness of less than 0 nm and a film thickness of 2 nm or more and less than 25 nm at a position L / 4 from the end of the container, and a phosphor film formed above the transparent conductive film. It is characterized by.

[0014] Even if the resistance value is increased by forming the transparent conductive film to have a smaller film thickness distribution than before, there is no obstacle to practical start-up, and blackening does not occur. Further, when the whole is made thin, there is no waste of heating during the film forming operation, and the generation of unreacted portions can be suppressed.

On the other hand, if the thickness is made thinner than the regulated thickness, the starting voltage is undesirably increased.

Further, the phosphor coating may be applied directly on the transparent conductive coating or may be formed on the transparent conductive coating by forming a protective coating made of a refractory metal oxide on the transparent conductive coating. Good.

According to a second aspect of the present invention, there is provided a rapid start type fluorescent lamp comprising: a tubular light-transmitting airtight container in which a discharge medium containing mercury is sealed; and a pair of electrodes provided at both ends in the container. , Mainly composed of tin oxide or indium oxide, is applied to the inner surface of the container, and has a film thickness of 25 nm or more and less than 60 nm at the central portion L / 2 of the length L in the axial direction of the container, and at a position L / 4 from the end of the container. The film thickness is 2 nm or more and 25
a transparent conductive film having a mean particle diameter of less than 4 nm and a fluorescent substance having an average particle diameter of 4 μm or less and formed on an upper layer of the transparent conductive film and containing 10 wt% or more and 20 wt% or less. And a main phosphor coating.

In addition to the same effect as described in the first aspect, a phosphor having a small particle size of 4 μm or less is mixed on the transparent conductive film or on the metal oxide film formed on the transparent conductive film. As a result, the phosphor particles having a small particle diameter fill the gaps between the phosphor particles having a larger particle diameter, thereby increasing the contact area between the particles and increasing the binding force. And the occurrence of cracks and peeling of the phosphor film can be prevented. Further, in the phosphor film having the improved binding force, mercury does not enter because there is no gap between the phosphor particles, and therefore, it is difficult for mercury to adhere to the phosphor film, so that there is no generation of slight discharge and blackening occurs. Can be prevented.

It should be noted that one phosphor having an average particle size of 4 μm or less
If the amount is less than 0% by weight, the binding force is weakened, and the coating is cracked or peeled off. Also,
Even when the content exceeded 20% by weight, no significant difference was observed in the effect.

According to a third aspect of the present invention, there is provided a rapid start type fluorescent lamp comprising: a tubular translucent airtight container in which a discharge medium containing mercury is sealed; and a pair of electrodes provided at both ends in the container. A transparent conductive film that is mainly formed of tin oxide or indium oxide and adhered to the inner surface of the container, and the container end is formed with the highest resistance at the center and the lowest resistance at the center, and formed above the transparent conductive film. In the one provided with a phosphor coating, the transparent conductive coating is divided into 12 equal parts in the tube axis direction L of the container and divided into equal positions 1 to 11 excluding both ends, from each end. L / 4, L
The resistance value between the positions / 6 away (positions 2, 3, 9, 10) is higher than the straight line connecting the resistance value at the end and the resistance value at positions L / 3 away (positions 4 and 8). It is characterized by being constituted so that it becomes.

Even if the resistance value is increased by forming the transparent conductive film with a thin film thickness distribution, there is no obstacle to practical start-up, and there is no problem of blackening. It is to be noted that if the thickness is further reduced than the regulation thickness, the starting voltage is increased, which is not preferable.

In the rapid start type fluorescent lamp according to a fourth aspect of the present invention, the transparent conductive film is made of tin oxide or indium oxide and mainly composed of Fe.SUS (C.Si.
(Mn, P, S, Ni, Cr, Mo, Cu).

Fe.SUS (C.Si.Mn.PS.
Ni, Cr, Mo, Cu), the addition of a metal material enhances the function as a conductive scattering factor, prevents an increase in conductivity, and suppresses a decrease in the resistance of the transparent conductive film. As a result, blackening of the end does not occur.

The addition amount is 10 to 100 PPM (1 to 100 PPM).
The range of 10 mg / 100 cc) is good, and if it is less than 10 PPM, there is no effect. If it exceeds 100 PPM, a conductive film is not obtained.

In the rapid start type fluorescent lamp according to the fifth aspect of the present invention, L / L is measured from the container end of the transparent conductive film.
The resistance value at a distance of 6 away is 100 to 1000 Ω /
cm ² .

The same effect as described in the first to fourth aspects is exerted on the coating resistance value.

In the rapid start type fluorescent lamp according to the sixth aspect of the present invention, the center L / 2 of the transparent conductive coating is provided.
Is 100 Ω / cm ² or less.

The same effect as described in the first to fourth aspects is exerted on the coating resistance value.

When the resistance exceeds 100 Ω / cm ² , the thickness of the coating is too thin, so that blackening is liable to occur.

A rapid start type fluorescent lamp according to a seventh aspect of the present invention is characterized in that a protective film made of a metal oxide is formed between a transparent conductive film and a phosphor film.

A high-resistance protective film made of a metal oxide film such as aluminum oxide is formed between the transparent conductive film and the phosphor film, and the resistance between these films is increased, thereby increasing the resistance. Since the voltage is increased, dielectric breakdown is less likely to occur, the occurrence of micro discharge is suppressed, and the deterioration and blackening of the phosphor film are prevented.

According to an eighth aspect of the present invention, there is provided an illuminating device comprising: a main body; a rapid start type fluorescent lamp according to any one of the first to seventh aspects mounted on the main body; And a lamp lighting device for energizing the fluorescent lamp.

In the lighting device equipped with the fluorescent lamp having the functions described in the first to seventh aspects, a lamp with blackening and little deterioration in appearance is used as a light source. can get.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a partial cross-sectional front view of a rapid start fluorescent lamp, and FIG. 2 is a longitudinal cross-sectional view showing a part of a translucent airtight container (glass bulb) and a coating on an enlarged scale.

In FIG. 1, reference numeral 1 denotes a straight tube type rapid-start fluorescent lamp, 2 denotes a light-transmitting airtight container (glass bulb) constituting the lamp 1, and 3 denotes both ends of the container (glass bulb). Mounts provided on 21 and 21 (only one end is shown), and 31 is an electrode composed of a filament coil connected to the lead wires 32 and 32.

Reference numeral 4 denotes tin oxide (SnO) formed on the inner surface of a straight tube-shaped translucent airtight container (glass bulb) 1.
₂ ) a transparent conductive film mainly composed of ₅ ), 5 a protective film made of a metal oxide such as alumina (aluminum oxide Al ₂ O ₃ ), which is formed by coating on the upper surface of the transparent conductive film 4; Calcium halophosphate (Ca ₁₀ (PO ₄ ) ₆ (F
Cl) ₂ Sb, Mn) phosphor coating.

Further, a discharge medium made of mercury and a rare gas such as argon or krypton is sealed in the light-transmitting airtight container (glass bulb) 2, and a base 7 is attached to an end.

This tubular light-transmitting container (glass bulb) 2
The transparent conductive film 4 made of, for example, tin oxide is formed on the inner surface so that the temperature at the center is higher than that at the end by about 50 ° C. and sprayed from the open end of the hermetic container (glass bulb) 2. For example, tin chloride (SnCl ₂ or SnC
l ₄ ) A solution is sprayed inward and is thermally decomposed to obtain tin oxide (SnO ₂ ) having a predetermined thickness (electrical resistance).
To obtain a transparent conductive film 4 containing as a main component. At this time, the temperature of the tubular container (glass bulb) 2 is kept high at the central part and both ends are kept lower than the central part, so that the central part of the container (glass bulb) 2 has a film thickness of about 45 nm. ,Also,
A transparent conductive film 4 having a thickness of about 15 nm, which is thinner than the center, was formed at the end.

The formation of the coating film 4 is not limited to the spray method, but may be, for example, dimethyltin dichloride (CH 3) ₂
Heating and evaporating an organotin compound such as SnCl ₂ ,
The vapor may be sprayed onto the inner surface of the tubular container (glass bulb) 2 to be thermally decomposed to obtain a transparent conductive film 4 containing tin oxide as a main component. The conductivity can be arbitrarily changed depending on the degree of reduction of the oxide.

Thereafter, a protective coating 5 made of alumina (Al ₂ O ₃ ) or the like and a phosphor coating 6 are formed on the transparent conductive coating 4 on the inner surface of the tubular container (glass bulb) 2. The lamp 1 is completed when the mount 3 is sealed at both ends of the lamp 2, the inside is evacuated, mercury and a rare gas for discharge are sealed, and the exhaust pipe is closed.

Then, the fluorescent lamp 2 is inserted into a socket (not shown) of a main body of a lighting device having a normal lighting device.
Is attached and energized. By this energization, the thermoelectrons emitted from the filament coil 31 serving as the cathode electrode at the time of starting reach the filament coil 31 serving as the anode electrode via the transparent conductive film 4 to form a discharge path. The light is turned on, and light of a predetermined wavelength is emitted through the phosphor coating 6.

According to the test conducted by the present inventors, the thickness of the transparent conductive film 4 formed on the inner surface of the tubular container (glass bulb) 2 is determined in the central portion of the length L of the container 2 in the tube axis direction. L / 2
The film thickness at (position a) is 25 nm or more and 60 nm
Is less than 100 Ω / cm ² , and the film thickness at L / 4 (position b) from the end of the container 2 is 2 nm.
When the thickness is less than 25 nm, blackening can be reduced, and no deterioration is observed in appearance. Incidentally, in the straight tube rapid start type fluorescent lamp FLR40S, the overall length L of the tubular container (glass bulb) 2 is about 1198 mm, the position a of the central part L / 2 is about 599 mm from the end, and L / L from the end.
The position b of 4 is at about 300 mm.

In the lamp 1 having the above-mentioned thickness range, the transparent conductive film 4 is a thin film having a high resistance value. However, since generation of impurity gas is extremely small, coloring such as blackening or yellowing does not occur in the container (glass bulb) 2 and the luminous flux reduction rate during the life is small. In addition, it is possible to provide the lamp 1 which is not inferior in appearance.

The blackening could also be reduced by regulating the particle size of the phosphor of the phosphor coating 6 formed on the transparent conductive coating 4 on the inner surface of the container (glass bulb) 2. For example, calcium halophosphate (Ca ₁₀ (PO ₄ ) ₆ (FC
l) When the phosphor coating 6 is formed by using ₂ Sb, Mn) phosphor, for example, those having an average particle diameter of about 12.5 μm and an average particle diameter of 4 μm or less are 10% by weight or more and 20% by weight.
Blackening could be reduced when the phosphor contained the following.

This is because, for example, the average particle size is about 12.5 μm.
In the case where a phosphor coating is formed by mixing a phosphor having an average particle diameter of 4 μm or less into the phosphor of m, as shown in FIG. 3, the phosphor particles 6S, 6S, Are filled in the gaps between the phosphor particles 6L, 6L,... Having a larger particle diameter, the contact area between the particles 6S, 6L,. The adhesion strength of No. 6 is remarkably improved, and the occurrence of cracks and peeling can be prevented.

Further, the phosphor film 6 with improved binding force
Have no gaps between the phosphor particles 6S, 6L,... So that mercury does not enter. Therefore, light emission characteristics are improved and mercury is less likely to adhere on the phosphor coating 6, so that no microdischarge occurs and blackening occurs. Can prevent.

For example, in the above halophosphate phosphor,
When the amount of blackening after 5000 hours of lighting was examined by variously changing the mixing amount of those having an average particle size of 4 μm or less, the results shown in FIG. 4 were obtained. In FIG. 4, the abscissa represents the weight percentage of the mixture having an average particle size of 4 μm or less, and the ordinate represents the degree of blackening by visual perception. The degree is remarkable, and if it is less than 8 points, the luminous flux lowers and the appearance is conspicuous.

From these results, there was no problem if the mixing weight% of the particles having an average particle diameter of 4 μm or less was 10 to 20% by weight. It should be noted that there was no difference in the effect even when the mixing amount exceeded 20% by weight.

Further, as shown in FIG. 5, a fluorescent film 61 formed of, for example, a halophosphoric acid phosphor is applied onto the tube-shaped container (glass bulb) 2 from the end of the container having a length L in the tube axis direction.
A phosphor coating 62 made of a phosphor of a three-wavelength emission type may be formed in multiple layers over the range of the position 4.

This is because a fluorescent material having a relatively positive contact charge tendency is applied to the end of a container (glass bulb) 2 where EC blackening is likely to occur. In order to repel the charge and reduce the charge accumulation, the mercury particles gather in the center. As a result, no mercury particles are present at the end of the container (glass bulb) 2 where EC blackening is likely to occur, and the occurrence of minute discharge can be suppressed to prevent blackening.

FIG. 6 shows another embodiment of the rapid start type fluorescent lamp of the present invention. In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. This straight tube rapid start type fluorescent lamp FLR40S divides a tube-shaped container (glass bulb) 2 having a total length L of about 1198 mm into 12 equal parts in the tube axial length L (positions 1 to 11), and one end, for example, about 10 cm from the left end. At positions 1, 2,
.., 10, and 11, the resistance distribution of the transparent conductive film 4 formed on the inner surface thereof is as shown in FIG.

In other words, the end portions (positions 1 and 11) of the hermetic container (valve) cannot have the same resistance value at both ends due to the manufacturing method thereof, but have a resistance of 1000 KΩ / cm ^2.
From the ends (positions 1 and 11), L / 4 (about 30
cm) in the intermediate region between the positions (positions 4 and 8) apart, about 50 to 100 KΩ / cm ² , and a portion having the lowest resistance value is formed in the central portion between the positions 4 and 8. This resistance value is not different from the conventional product. An intermediate region between the end position 1 and the center position 4 and between the end position 11 and the center position 8 is a straight line connecting the positions 1-4 and 11-8 (FIG. The transparent conductive film 4 is formed so as to have a higher resistance value, that is, a resistance value higher than the lowest value at the center.

In the airtight container (valve), the resistance is increased at positions 2, 3, 9, and 10 about 10 to 30 cm from the end of the pipe, which is the lowest temperature part, so that the temperature rise is measured and EC blackening is performed. Was able to be suppressed. In the conventional lamp, the resistance value in the intermediate region between the positions 1-4 and 11-8 is a low resistance value whose middle portion hangs down from the line connecting the straight lines, so that the EC blackening is performed. There was an outbreak.

In this type of rapid start type fluorescent lamp, a shield ring 32 is provided so as to surround a filament coil 31 serving as a discharge electrode constituting the mount 3, and a mercury alloy as a discharge medium is provided on the shield ring 32. There is something. This mercury alloy is, for example, GEMEDIS
Known as (trade name), it is formed by applying an alloy powder of mercury and titanium to a substrate, and is an airtight container (valve) 2
Mercury is emitted by high-frequency induction heating from outside. The shielding ring 32 functions to suppress the electron-emitting substance formed on the filament coil 31 from adhering to the phosphor coating 6 and to carry mercury such as GEMEDIS (trade name).

The mercury adheres to the phosphor coating near the filament coil 31 provided with the mercury alloy when mercury is released. Since the potential is concentrated on the portion where the mercury is adhered, the phosphor film is apt to be blackened due to dielectric breakdown of the phosphor film. However, when the transparent conductive film in this portion (from the end of the hermetic container (valve) 2 to a portion about 20 cm from the end portion) is thinned to have a resistance of about 100 to 1000 KΩ / cm ² , the occurrence of blackening is suppressed. did it.

The present invention is not limited to the above embodiment. For example, the material forming the transparent conductive film is not limited to tin oxide (SnO ₂ ), but may be indium oxide (InO ₂ ). With antimony S as the main component
b, Fe, SUS (C, Si, Mn, P, S, Ni, C
(r.Mo.Cu) may be added.

Further, the types of materials for forming the phosphor film and the protective film are not limited.

[0058]

According to the first and third to sixth aspects of the present invention, the container (glass bulb) is not colored such as blackening or yellowing, the luminous flux reduction rate during the life is small, and the starting voltage is also specified. It is possible to provide a rapid-start-type lamp that fits inside, is not inferior in appearance, and has no practical problem.

According to the second aspect of the present invention, in addition to the same effects as those of the first aspect, a phosphor film having a strong adherence can be obtained, and cracks and peeling do not occur in the phosphor film. Mercury does not easily adhere to the surface, and there is no generation of minute discharge, so that blackening can be prevented.

According to the seventh aspect of the present invention, since the protective film is formed, the withstand voltage is increased, the dielectric breakdown is less likely to occur, and the occurrence of micro discharge is suppressed, and the phosphor film is deteriorated or blackened. Is prevented from occurring.

According to the eighth aspect of the present invention, a fluorescent lamp having the effects described in the first to seventh aspects and having a blackening and a little deterioration in appearance is used as a light source, so that a long life with little reduction in luminous flux. Lighting device can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a rapid start type fluorescent lamp according to the present invention.

FIG. 2 is an enlarged longitudinal sectional view showing a part of a translucent airtight container (glass bulb) and a film constituting the fluorescent lamp of FIG.

FIG. 3 is an explanatory view showing another embodiment of the coating formed on the translucent airtight container (glass bulb) of the rapid start fluorescent lamp of the present invention.

FIG. 4 shows an average particle diameter of 4 μm for a phosphor having an average particle diameter of 4 μm or more.
FIG. 6 is a graph showing the occurrence of blackening after 5000 hours of lighting, with various mixing amounts when phosphors of μm or less are mixed. FIG.

FIG. 5 is an explanatory view showing another embodiment of the coating formed on the translucent airtight container (glass bulb) of the rapid start type fluorescent lamp of the present invention.

FIG. 6 is an explanatory diagram showing another embodiment of the rapid start type fluorescent lamp of the present invention.

FIG. 7 is a graph showing a resistance value distribution of a transparent conductive film formed on a translucent airtight container (glass bulb) of the fluorescent lamp of FIG. 6;

[Explanation of symbols]

 1: Rapid start type fluorescent lamp 2: Translucent airtight container (glass bulb) 3: Mount 4: Transparent conductive film 5: Protective film 6: Phosphor film

Claims (8)

[Claims] 1. A tube-shaped translucent airtight container enclosing a discharge medium containing mercury; a pair of electrodes provided at both ends in the container; and a tin oxide or indium oxide as a main component adhered to the inner surface of the container. And the central part L /
2, the film thickness at the position of L / 4 from the edge of the container is 2 nm or more and less than 60 nm.
A rapid-start fluorescent lamp, comprising: a transparent conductive film having a thickness of less than; and a phosphor film formed above the transparent conductive film. 2. A tube-shaped translucent airtight container enclosing a discharge medium containing mercury; a pair of electrodes provided at both ends in the container; and a tin oxide or indium oxide as a main component adhered to the inner surface of the container. And the central part L /
2, the film thickness at the position of L / 4 from the edge of the container is 2 nm or more and less than 60 nm.
A transparent conductive film having an average particle diameter of 4 μm or less formed above the transparent conductive film.
A phosphor coating mainly comprising a phosphor having an average particle diameter of more than 4 μm containing not less than 20% by weight and not more than 20% by weight. 3. A tube-shaped translucent airtight container enclosing a discharge medium containing mercury; a pair of electrodes provided at both ends in the container; and a tin oxide or indium oxide as a main component adhered to the inner surface of the container. A transparent conductive film formed with a container having the highest resistance at the end and a lowest resistance at the center; and a phosphor film formed above the transparent conductive film. When the length L in the tube axis direction of the container is divided into 12 equal portions 1 to 11 excluding both ends, the functional coating is located at positions L / 4 and L / 6 away from the respective ends (position 2). , 3, 9, 10) are higher than a straight line connecting the resistance value at the end and the resistance value at positions L / 3 away (positions 4 and 8). A rapid start type fluorescent lamp characterized by the following. 4. The transparent conductive film is mainly composed of tin oxide or indium oxide and is composed of Fe.SUS (C.Si.Mn).
4. A rapid start type fluorescent lamp according to claim 1, wherein P.S.Ni.Cr.Mo.Cu) is added. 5. The resistance value of the transparent conductive coating from the end of the container to a distance of L / 6 from 100 to 1000 Ω / cm.
Rapid start fluorescent lamp according to any one of claims 1 to 3, characterized in that it is ^2. 6. The rapid-start fluorescent lamp according to claim 1, wherein the resistance value of the transparent conductive film at the center L / 2 of the container is 100 Ω / cm ² or less. 7. The rapid-start fluorescent lamp according to claim 1, wherein a protective film made of a metal oxide is formed between the transparent conductive film and the phosphor film. . 8. A main body; and a main body mounted on the main body.
8. A lighting device, comprising: the rapid-start fluorescent lamp according to any one of claims 7 to 7; and a lamp lighting device disposed in the main body to energize the fluorescent lamp.