§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP0510532A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Combination lamp for automobile

Assignee: Ichikoh Industries Ltd
•
Filing: 1992-04-16
•
Granted: —
•
Expires: 2012-04-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The combination lamp (10) for automobiles comprises an integrally formed lamp housing or separate lamp housings for a plurality of lighting units (1,2). The front opening of each lamp housing is covered with a single front lens consisting of lens portions for the respective lighting units. There are provided at the boundary (4a,4b) between the adjoining lighting units (1,2) two light barriers (3a,3b) extending nearly in parallel with the optical axes of the lighting units (1,2). The combination lamp (10) further comprising a prism (4p) integrally formed between two lens portions for the adjoining lighting units and which reflects the light beam incident from at least one of the adjoining lighting units upon the boundary into a space defined by the two light barriers (3a,3b) or reflects the light beams to outside the front lens. Thus, the leak of light from one of the lighting units (1,2) into the other can be completely shut off to eliminate the possibility of a false luminous phenomenon.

Inventors

  • 👤 Ichirou Akiyama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 23:13
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2607; F; F21; F21S; F21S43/00; F21S43/20; F21S43/26

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 137 words
A combination lamp, comprising a lamp housing for a plurality of lighting units and which is opened at the front thereof; a front lens covering the front opening of said lamp housing and having a lens portion for each of said lighting units; and a plurality of light barriers disposed at a boundary between two adjacent ones of said plurality of lighting units within said lamp housing and which extend nearly in parallel with the respective optical axes of said lighting units, said combination lamp further comprising a prism integrally formed between two lens portions for said adjoining lighting units and which reflects and refracts the light beam incident from at least one of said adjoining lighting units upon said boundary in such directions that the light beams are not positively led into said other lighting unit.
Claim 2
Dependent Claim 49 words
A combination lamp as set forth in Claim 1, wherein said prism has a first reflecting surface at which the light beams incident upon said boundary are subject to total reflection, and a second reflecting surface to reflect and lead the thus-reflected light beams to outside said front lens.
Claim 3
Dependent Claim 66 words
A combination lamp as set forth in Claim 1, wherein said prism has a reflecting surface at which the light beams incident upon said boundary are subject to total reflection, and refracting/reflecting surfaces by which the reflected light beams are partially led toward a space defined by said two light barriers and the rest of said reflected light beams is led to outside said front lens.
Claim 4
Dependent Claim 35 words
A combination lamp as set forth in Claim 3, wherein a reflecting film is formed on said refracting/reflecting surface to reflect toward outside said front lens all the light beams reflected on said reflecting surfaces.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag