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

high intensity discharge lamp

一种高强度放电灯、放电容器的技术，应用在高压放电灯、放电灯、气体放电灯等方向，能够解决不利、光辐射特性影响等问题，达到改进效率、减小热应力的效果

Active Publication Date: 2017-06-27
LUMILEDS HLDG BV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Another disadvantage lies in the fact that with such protrusions and / or recesses in the wall of the inner tube and / or the outer tube, the light radiation properties can be affected, for example, with regard to shadowing effects
This is especially disadvantageous in the case of lamps used together with reflectors, e.g. in headlight units of automobiles, since this can significantly degrade the desired distribution of the radiated light

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
  • high intensity discharge lamp
  • high intensity discharge lamp
  • high intensity discharge lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 A typical construction of a high-intensity discharge lamp is shown in longitudinal section, which involves the above-mentioned problems during start-up and steady-state operation. The lamp is provided for horizontal operation and comprises an inner tube or bulb 1 and an outer tube or bulb or lamp vessel 2 (only a part of which is shown) surrounding the inner bulb 1 .

[0031] The inner bulb 1 comprises a first central part or discharge vessel 11 having a first diameter d1 for enclosing the discharge volume. At axially opposite ends of the discharge vessel 11 there are provided a first elongated constriction 12 and a second elongate constriction 13 for enclosing electrical contacts for electrodes (not shown) extending into the discharge vessel 11 And a gas discharge is excited between the electrodes. The inner bulb 1 is enclosed by a substantially cylindrical outer bulb 2 having a second diameter d2.

[0032] According to figure 2 In the first embodiment of...

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

No PUM Login to View More

Abstract

The invention discloses a high-intensity discharge (HID) lamp, which comprises an inner bulb (1) and an outer bulb (2) with a discharge vessel (11), and is particularly suitable for automobile headlight units. The present invention also proposes a lamp design whereby high thermal stress and increased quartz temperature during start-up and steady state operation of the lamp are avoided to improve lamp light output and lifetime. This is substantially reduced by positioning the inner and outer bulbs (1, 2) such that the longitudinal axis of the inner bulb (1) is positioned above the longitudinal axis of the outer bulb (2) in the operating position of the lamp The distance between the discharge vessel (11) and the outer bulb (2) on the top side of the lamp and the distance between the two on the bottom side is increased accordingly.

Description

[0001] related application [0002] This application is a divisional application of the Chinese patent application with the application number 200680017971.0 and the invention name "High Intensity Discharge Lamp" filed on May 17, 2006. technical field [0003] The invention relates to a high-intensity discharge (HID) lamp, which includes an inner bulb with a discharge vessel and an outer bulb, and is especially suitable for a car headlight unit. Background technique [0004] High-intensity discharge lamps, and in particular those proposed for use in headlight units of vehicles, operate at high power. In addition, due to the fact that a point light source is required in order to achieve a prescribed radiation characteristic within a specific reflector design, such lamps must have small dimensions. [0005] Usually, such HID lamps consist of an inner bulb (which encloses a discharge gas and a salt filling) and an outer bulb or lamp vessel which surrounds the inner bulb to pro...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/34H01J61/52
CPCH01J61/34H01J61/523H01J61/30H01J61/84
Inventor M.哈克
Owner LUMILEDS HLDG BV
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