Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluorescent lamp and bulb-shape fluorescent lamp

A technology for fluorescent lamps and phosphors, which is applied to low-pressure discharge lamps, parts of gas discharge lamps, devices for hanging curtains, etc., and can solve problems such as reduced luminous flux and insufficient improvement

Inactive Publication Date: 2004-01-28
TOSHIBA LIGHTING & TECH CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the auxiliary amalgam is provided in (a) above, it may take a certain amount of time for the mercury emitted by the auxiliary amalgam heated by the electrode located at the end of the glass lamp tube to diffuse into the entire glass lamp tube after the lamp is turned on. not sufficiently improved
(b) In the case of mixing amalgam in the fluorescent layer, it can be considered that the above situation is indeed improved by selecting a different amalgam, but since the non-luminescent substance is mixed in the fluorescent layer, there is a problem that the luminous flux decreases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fluorescent lamp and bulb-shape fluorescent lamp
  • Fluorescent lamp and bulb-shape fluorescent lamp
  • Fluorescent lamp and bulb-shape fluorescent lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] specific implementation plan

[0063] Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 8 .

[0064] Implementation Status 1

[0065] Fig. 1 is a partial cross-sectional view of the main components of a straight-tube fluorescent lamp in Embodiment 1, 1 is a straight-tube glass lamp tube, 2 is a fluorescent layer arranged on the inner surface (inner wall surface) of the aforementioned straight-tube glass lamp tube 1, 3a and 3b are pins. Rare gas is also sealed in the straight glass lamp tube 1, and a pair of electrodes (not shown in the figure) are packaged at both ends thereof, and the electrodes are electrically connected with the aforementioned pins 3a and 3b. In addition, Bi-Sn-Hg amalgam is sealed in the exhaust pipe at one end.

[0066] The glass lamp tube 1 is a soda-lime glass tube with a tube diameter of 16 mm and a tube length of 540 mm. The fluorescent layer 2 is a fluorescent layer prepared by mixing phosp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Tube inner diameteraaaaaaaaaa
Login to View More

Abstract

The present invention provides a fluorescent lamp with increased build-up of light flux right after lighting, a bulb-shape fluorescent lamp and a lighting device. The fluorescent lamp according to the present invention comprises a glass bulb 4 sealed with a discharge medium containing amalgam and an inert gas, providing a mercury vapor pressure close to that of pure mercury; a discharge generation means for generating a discharge in the glass bulb 4; and a phosphor layer containing a phosphor particle and a binder; which is characterized in that: the amount of the binder (i.e. alumina) in the phosphor layer 10 is reduced, alumina and boric acid are used in combination, zirconium oxide, zirconium oxide and boric acid are used in combination, or the surface of the phosphor particle 10a forming the phosphor layer 10 is attached with a metal oxide carrying a negative voltage or an inorganic compound 10b.

Description

technical field [0001] The present invention relates to an amalgam-encapsulated fluorescent lamp, a bulb-type fluorescent lamp, and a lighting device. Background technique [0002] Fluorescent lamps are used in a wide range of fields, such as general lighting, light sources for OA equipment, and backlights for liquid crystal displays, because they can efficiently convert supplied electric energy into visible light radiation. In addition, in recent years, in order to meet demands such as miniaturization of equipment, further miniaturization of itself has been promoted and performance has been improved. [0003] When fluorescent lamps are used as such light sources, there are three requirements for them: 1) Prevent and improve the decrease in luminous flux retention rate, 2) Prevent and improve the occurrence of early blackening, 3) Improve the luminous flux rise characteristics immediately after lighting Wait. Therefore, in a fluorescent lamp, when forming a fluorescent lay...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01J61/44H01J61/12H01J61/26H01J61/28H01J61/35H01J61/72
CPCA47H1/102A47H1/122A47H1/142
Inventor 泉昌裕柴原雄右盐崎满筏邦彦依藤孝安田丈夫
Owner TOSHIBA LIGHTING & TECH CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com