PROBLEM TO BE SOLVED: To reduce electric power consumption, and to enhance utilization efficiency of the light by constituting a vehicular lighting fixture of a spheroidal reflecting surface for reflecting the light to the opposite side of the irradiating direction, a first reflecting surface for reflecting the light from a light source reflected by the spheroidal reflecting surface in the irradiating direction and a second reflecting surface for reflecting the direct light from the light source in the irradiating direction. SOLUTION: A part of the light from a light source 2 is reflected by a spheroidal reflecting surface 3a, and then, proceeds in the opposite direction of the irradiating direction of this vehicular lighting fixture 1 to be focused on a second focus 5. Since the spheroidal reflecting surface 3a rotates with the optical axis X as the center, the second focus 5 is positioned in a ring shape with the optical axis X as the center to control the light from a light source 2 in all directions. A first reflecting surface 4a reflects the light reflected by the spheroidal reflecting surface 3a in the irradiating direction of the vehicular lighting fixture 1. A second reflecting surface 4b receives the light except for the light irradiated to the spheroidal reflecting surface 3a among the light radiated from the light source 2 to radiate almost parallel beams of light in the irradiating direction of the vehicular lighting fixture 1 so that the light from the light source 1 is not directly irradiated in the irradiating direction. COPYRIGHT: (C)2001,JPO

Vehicular lighting fixture

A wireless payment system allows high speed operation without user intervention with the convenience that cellular phones provide. The system being described uses a wireless stored value module attached to an ordinary cellular phone or embedded in the cellphone's Subscriber Identity Module (SIM) card. A Reader is installed in points of transaction that communicates with the module and deducts the balance stored in the module for effecting the payment. The transaction is sent by the Reader to a central database to update a copy of the module's balance and perform settlement functions at the end of the day. After every transaction, a SMS or text confirmation is received by the cellphone user which indicates the amount paid and remaining balance in the module. Re-loading of values in the module can be accomplished solely by sending text messages using a cellular phone from anywhere, any time.

Cellular phone-based automatic payment system

A lighting device (RH) for a vehicle includes multiple light emitting devices (10, 20). Each light emitting device (10, 20) is constructed of a light emitting diode (11, 21) as a light source and a light guide lens (13, 23) for guiding light emitted from the light emitting diode (11, 21). The light emitting devices (10, 20) are formed in convex light emitting devices (10) and fan-shaped light emitting devices (20). The convex devices (10) and the fan-shaped devices (20) have different light distribution characteristics. Therefore, light distribution areas and intensity of the lighting device (RH) are more flexibly adjusted than other lighting devices using light emitting diodes as a light source.

Lighting device for a vehicle and method for controlling light distribution of the lighting device

The element has a set of light guiding units (3a-3d) connected at an output to a corrective part (4), where the corrective part includes half-sphere shape. The corrective part comprises an exit surface (41) having a shape of spherical dome. The light guiding units and the corrective part form an integral structure, and are manufactured from same material such as polymer. The exit surface is centered approximately on an outlet side of one of the light guiding units. A front face of each light guiding unit is provided with a convex portion. Independent claims are also included for the following: (1) an optical assembly (2) a lighting module.

Primary optical element, lighting module and headlight for motor vehicle

Headlamp systems are provided that form desired beam patterns from light supplied by semiconductor light sources. The systems (20) include a source array of semiconductor light sources (32) and a lens system (4S) to produce a first component, such as spread light, of desired beam patterns and a source array of semiconductor light sources (36) and a lens system (52) to produce a second component, such as the hot spot components, of the desired beam patterns. Light from the semiconductor light sources of each source array (32,36) is transferred to the respective lens system (48,52) by a transfer device comprising a series of light pipes (40,44) which capture light emitted by the semiconductor light sources (32,36) and emit the captured light adjacent the respective lens systems (48,52). One or both source arrays (32,36) can include additional semiconductor light sources which are selectively illuminated or extinguished to provide steering hot spots in the beam pattern to illuminate areas adjacent the vehicle over which the vehicle will be turned.

Headlamp with beam patterns formed from semiconductor light sources

Disclosed is a lighting device for a vehicle, having a light-decoupling element in a decoupling bay of the vehicle. The light-decoupling element is fed by a light source arranged at a distance, where an optical fiber connects the light source and the light decoupling element. A light panel is used to achieve a visual shielding of an inner bay containing structural elements and components. The light panel facilitates a visual shielding of the rear inner bay.

Lighting device for vehicles

A headlight, having a bowel shaped reflector with two focal points and a lens, includes a screen shaft positioned between the lens and the reflector, a rotational axis of which extends horizontally and at a right angle to an optical axis. The screen shaft is adjustable to a plurality of rotational positions and has in each rotational position a focal line, which produces a light-dark border of a light pattern. A mantle surface of the screen shaft has at least one surface portion which connects two focal lines which extends irregularly to, and deviates from, a cylindrical surface.

Headlight for vehicle

The front part (10) of the vehicle has a decorative element (18) for covering the air inlet to the radiator and has lights. At least one of the light elements is formed as a pair of headlamps (20). At least another light element is formed as a pair of running lights. The running lights are integrated into the decorative cover element.

Front part or fender of a vehicle esp with an ornamental grating for covering the air inlet to the radiator where the side lights are integrated into the cover

A headlamp has a decoupling element (1) and a fiber optic light guide (2) with a front end piece (3). A lamp with a reflector reflects light into a rear end piece. The decoupling element has an input surface (5) on its rear end (4) facing the front end piece. The decoupling element is a Cartesian oval with side surfaces plane-parallel to each other running in a vertical direction and in a direction of beam (11).

Headlamp for use in motor vehicles has a source of light pre-stored in a rear end piece for a fiber optic light guide and a decoupling element designed as a plane-parallel Cartesian oval pre-stored in a front end piece for the light guide.

The device has a light source before a rear end piece of a light conductor and an output coupling element in front of a leading end piece in the form of a Cartesian oval with a convex output coupling surface. The output coupling surface has structures transverse to the radiation direction that produce artificial stopping by controlled deflection of light in light distribution stop zones in a plane transverse to the radiation direction. The device has a light source mounted before a rear end piece of a light conductor and an output coupling element arranged in front of a leading end piece of the light conductor in the form of a Cartesian oval (8) with a convex output coupling surface (7) in the radiation direction. The output coupling surface of the Cartesian oval has structures transverse to the radiation direction that produce artificial stopping by controlled deflection of light beams in the stop zones of the light distribution in a plane transverse to the radiation direction.

Vehicle headlamp has output coupling surface of Cartesian oval with structures transverse to radiation direction that produce artificial stopping by controlled deflection of light beams

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Ewald Topp

Author Tools

Chat about Author