Vehicular colored glass pane with light transmittance and reflectance adjustment
The invention relates to a vehicular glass pane having inner and outer major surfaces which are respectively disposed on a first side of a vehicular interior and a second side of a vehicular exterior. The glass pane has …
Original patent title: “Vehicular colored glass pane with light transmittance and reflectance adjustment”
What this patent covers
The actual claim
The invention relates to a vehicular glass pane having inner and outer major surfaces which are respectively disposed on a first side of a vehicular interior and a second side of a vehicular exterior. The glass pane has a glass plate and a multilayered film formed on one of the inner and outer major surfaces of the glass plate. The glass plate contains a coloring agent. The multilayered film includes a first layer which is light-absorbent and a second layer which is non-light-absorbent. The glass plate and the multilayered film are such that a visible light transmittance of the glass pane is from 25 to 55%, that a first reflectance of the inner major surface of the glass pane is up to 15%, that a second reflectance of the outer major surface of the glass pane is from 10 to 40%, that the visible light transmittance minus the first reflectance is at least 15%, and that the visible light transmittance minus the second reflectance is up to 30%. The glass pane is capable of sufficiently maintaining the vehicular occupants' privacy therethrough and the outward visibility therethrough from the vehicular interior, under various conditions.
What this patent does NOT cover
The boundaries
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Patent Abstract
Patent abstract
The invention relates to a vehicular glass pane having inner and outer major surfaces which are respectively disposed on a first side of a vehicular interior and a second side of a vehicular exterior. The glass pane has a glass plate and a multilayered film formed on one of the inner and outer major surfaces of the glass plate. The glass plate contains a coloring agent. The multilayered film includes a first layer which is light-absorbent and a second layer which is non-light-absorbent. The glass plate and the multilayered film are such that a visible light transmittance of the glass pane is from 25 to 55%, that a first reflectance of the inner major surface of the glass pane is up to 15%, that a second reflectance of the outer major surface of the glass pane is from 10 to 40%, that the visible light transmittance minus the first reflectance is at least 15%, and that the visible light transmittance minus the second reflectance is up to 30%. The glass pane is capable of sufficiently maintaining the vehicular occupants' privacy therethrough and the outward visibility therethrough from the vehicular interior, under various conditions.
Patent Journey
From filing to expiry
Patent Filed
1997
Patent Granted
2000 · 3yr after filing
Patent Expired
2017
PatentBrief Score
Impact Score
Early stage
Citation count
18/40
Early citations
Claim breadth
10/20
Broad claims
Recency
0/20
Older than 20 years
Assignee scale
0/20
Independent or smaller assignee
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
The original legal language
Original claims
15 claims as filed with the patent office.
Citations
Patent lineage
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