US5361190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror assembly
Assignee: KW Muth Co Inc
•
Filing: 1992-12-02
•
Granted: 1994-11-01
•
Expires: 2012-12-02
Abstract
Abstract A mirror assembly is disclosed which includes a dichroic mirror which allows a predetermined narrow spectral band to pass through the mirror and be seen from a position forward of the mirror, and which further reflects a broad spectral band of light which originates from a direction forward of the mirror; a light source is positioned rearwardly of the mirror and emits light in the predetermined narrow spectral band passed by the dichroic mirror; and an electronic circuit is provided which is operable to step up, or step down the voltage supplied to the light source thereby maintaining a constant voltage source which is utilized to energize the light source.
Inventors
- 👤 John K. Roberts
- 👤 Keith R. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:35
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60Q; B60Q1/00; B60Q1/26; B60Q1/2661; B60Q1/2665; B60R1/12; B60R1/1207; F; F21; F21S; F21S43/00; F21S43/10; F21S43/13; F21S43/14; F21V; F21V9/00; F21V9/20; B60R2001/1215; B60R2001/1223; B60R2001/1246; B60R2001/1284; F21W; F21W2111/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
113 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forwardly facing surface and a second, rearwardly facing surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the second surface through the first surface, and reflecting a broad spectral band of visible light which strikes the first surface and which originates from a location forward of the first surface; (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror; and (c) an electrical circuit for adjusting the light output of the light source in response to the ambient light level.
Claim 2
Dependent Claim
113 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forwardly facing surface and a second, rearwardly facing surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the second surface through the first surface, and reflecting a broad spectral band of visible light which strikes the first surface and which originates from a location forward of the first surface; (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror; and (c) an electrical circuit for adjusting the light output of the light source in response to the ambient light level.
Claim 3
Dependent Claim
45 words
A mirror assembly as claimed in claim 1, and wherein the light source is an array of light-emitting diodes, and wherein the mirror assembly further includes an electrical circuit for adjusting the light output of the light-emitting diodes in response to the ambient light level.
Claim 4
Dependent Claim
208 words
A mirror assembly as claimed in claim 2, and wherein the mirror assembly further comprises: (a) a plurality of reflectors positioned intermediate the light-emitting diodes and the dichroic mirror, each reflector disposed in light reflecting relation relative to the individual light-emitting diodes in the array of light-emitting diodes, the reflectors directing light in a direction substantially forward of the mirror assembly; (b) an array of convexo-convex lenses positioned intermediate the reflectors and the dichroic mirror, each of the lenses disposed in substantial registry with the individual reflectors, the convexo-convex lenses collimating the light in a direction substantially forward of the mirror assembly; (c) a baffle assembly positioned intermediate the convexo-convex lenses and the dichroic mirror, and which permits the light emitted by the light-emitting diodes to travel along a selected transmission path, and wherein the reflection of the broad spectral band of visible light may be viewed in the dichroic mirror outside of the selected transmission path, and wherein the light emitted by the light source is not readily visible outside the selected transmission path; and (d) a fresnel prism sheet positioned intermediate the convexo-convex lens and the baffle assembly, and wherein the fresnel prism sheet shifts the direction of the light substantially along the selected transmission path.
Claim 5
Dependent Claim
43 words
A mirror assembly as claimed in claim 1, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage up to a constant level for energizing the light source.
Claim 6
Dependent Claim
43 words
A mirror assembly as claimed in claim 1, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electric circuit for stepping the voltage down to a constant level for energizing the light source.
Claim 7
Dependent Claim
32 words
A mirror assembly as claimed in claim 1, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 8
Dependent Claim
122 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forward facing surface and a second, rearward facing surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the second surface through the first surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which strikes the first surface and which originates from a direction forward of the first surface; (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror; and (c) means for adjusting the light output of the light source in response to the ambient temperature and the heat generated by the light source.
Claim 9
Dependent Claim
122 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forward facing surface and a second, rearward facing surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the second surface through the first surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which strikes the first surface and which originates from a direction forward of the first surface; (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror; and (c) means for adjusting the light output of the light source in response to the ambient temperature and the heat generated by the light source.
Claim 10
Dependent Claim
213 words
The mirror assembly of claim 7 wherein the light source is an array of light-emitting diodes and the mirror assembly further comprises: (a) a plurality of reflectors positioned intermediate the light-emitting diodes and the dichroic mirror, each reflector disposed in individually light reflecting relation relative to a light-emitting diode in the array of light-emitting diodes, the reflectors directing light in a direction substantially forward of the mirror assembly; (b) an array of convexo-convex lenses positioned intermediate the reflectors and the dichroic mirror, each of the lenses substantially aligned relative to a reflector, the convexo-convex lenses collimating the light in a direction substantially forward of the mirror assembly; (c) a baffle assembly positioned intermediate the convexo-convex lenses and the dichroic mirror, and which permits the light emitted by the light-emitting diodes to travel along a selected transmission path, and wherein the reflection of the broad spectral band of visible light may be viewed in the dichroic mirror outside of the selected transmission path, and wherein the light emitted by the light source is not readily visible outside the selected transmission path; and (d) a fresnel prism sheet positioned intermediate the convexo-convex lens and the baffle assembly, and wherein the fresnel prism sheet shifts the direction of the light substantially along the selected transmission path.
Claim 11
Dependent Claim
43 words
A mirror assembly as claimed in claim 7, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage up to a constant level for energizing the light source.
Claim 12
Dependent Claim
43 words
A mirror assembly as claimed in claim 7 and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage down to a constant level for energizing the light source.
Claim 13
Dependent Claim
32 words
A mirror assembly as claimed in claim 7, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 14
Dependent Claim
290 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forwardly facing surface, and a second rearwardly facing surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearward facing surface through the forward facing surface, and when the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forward of the forwardly facing surface; (b) an array of light-emitting diodes positioned rearwardly of the second surface and emitting light in the predetermined narrow band of light passed by the dichroic mirror; (c) a plurality of reflectors positioned intermediate the light-emitting diodes and the dichroic mirror, each reflector disposed in substantially light reflecting relation relative to individual light-emitting diodes in the array of light-emitting diodes, the reflectors directing light in a direction substantially forward of the mirror assembly; (d) an array of convexo-convex lenses positioned intermediate the reflectors and the dichroic mirror, each of the lenses disposed in substantial registry with each of the respective reflectors, the convexo-convex lenses collimating the light in a direction substantially forward of the mirror assembly; (e) a baffle assembly positioned intermediate the convexo-convex lenses and the dichroic mirror, and which permits the light emitted by the light-emitting diodes to travel along a selected transmission path, and wherein the reflection of the broad spectral band of visible light may be viewed in the dichroic mirror outside of the selected transmission path, and wherein the light emitted by the light source is not readily visible outside the selected transmission path; and (f) a fresnel prism sheet positioned intermediate the convexo-convex lens and the baffle assembly, and wherein the fresnel prism sheet shifts the direction of the light along the selected transmission path.
Claim 15
Dependent Claim
290 words
A mirror assembly comprising: (a) a dichroic mirror having a first, forwardly facing surface, and a second rearwardly facing surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearward facing surface through the forward facing surface, and when the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forward of the forwardly facing surface; (b) an array of light-emitting diodes positioned rearwardly of the second surface and emitting light in the predetermined narrow band of light passed by the dichroic mirror; (c) a plurality of reflectors positioned intermediate the light-emitting diodes and the dichroic mirror, each reflector disposed in substantially light reflecting relation relative to individual light-emitting diodes in the array of light-emitting diodes, the reflectors directing light in a direction substantially forward of the mirror assembly; (d) an array of convexo-convex lenses positioned intermediate the reflectors and the dichroic mirror, each of the lenses disposed in substantial registry with each of the respective reflectors, the convexo-convex lenses collimating the light in a direction substantially forward of the mirror assembly; (e) a baffle assembly positioned intermediate the convexo-convex lenses and the dichroic mirror, and which permits the light emitted by the light-emitting diodes to travel along a selected transmission path, and wherein the reflection of the broad spectral band of visible light may be viewed in the dichroic mirror outside of the selected transmission path, and wherein the light emitted by the light source is not readily visible outside the selected transmission path; and (f) a fresnel prism sheet positioned intermediate the convexo-convex lens and the baffle assembly, and wherein the fresnel prism sheet shifts the direction of the light along the selected transmission path.
Claim 16
Dependent Claim
43 words
A mirror assembly as claimed in claim 12, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage up to a constant level for energizing the light source.
Claim 17
Dependent Claim
43 words
A mirror assembly as claimed in claim 12, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage down to a constant level for energizing the light source.
Claim 18
Dependent Claim
32 words
A mirror assembly as claimed in claim 12, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 19
Dependent Claim
128 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a rearwardly facing second surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forwardly of the first surface; and (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage up to a constant level for energizing the light source.
Claim 20
Dependent Claim
128 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a rearwardly facing second surface, the dichroic mirror allowing a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forwardly of the first surface; and (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage up to a constant level for energizing the light source.
Claim 21
Dependent Claim
32 words
A mirror assembly as claimed in claim 16, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 22
Dependent Claim
130 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a second, rearwardly facing surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forwardly of the first surface; and (b) a light source positioned rearwardly of the second surface, and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage down to a constant level for energizing the light source.
Claim 23
Dependent Claim
130 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a second, rearwardly facing surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forwardly of the first surface; and (b) a light source positioned rearwardly of the second surface, and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes an electronic circuit for stepping the voltage down to a constant level for energizing the light source.
Claim 24
Dependent Claim
32 words
A mirror assembly as claimed in claim 18, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 25
Dependent Claim
153 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a rearwardly facing second surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forward of the first surface; and (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes a means for stepping the voltage up to a constant level for energizing the light source, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
Claim 26
Dependent Claim
153 words
A mirror assembly comprising: (a) a dichroic mirror having a forwardly facing first surface and a rearwardly facing second surface, and wherein the dichroic mirror allows a predetermined narrow spectral band of light to pass from the rearwardly facing surface through the forwardly facing surface, and wherein the dichroic mirror reflects a broad spectral band of visible light which originates from a direction forward of the first surface; and (b) a light source positioned rearwardly of the second surface and emitting light in the predetermined narrow spectral band of light passed by the dichroic mirror, and wherein the mirror assembly is supplied with a fluctuating voltage, and wherein the mirror assembly further includes a means for stepping the voltage up to a constant level for energizing the light source, and wherein the dichroic mirror further includes a means for adjusting the opacity of the dichroic mirror in response to the ambient light level.
References Cited (Backward Citations)
US2060401A
Cited
US2190123A
Cited
US2263382A
Cited
US2580014A
Cited
US2595331A
Cited
US3040207A
Cited
US3266016A
Cited
US3449626A
Cited
US3436758A
Cited
US3543018A
Cited
US3665392A
Cited
US3840851A
Cited
US4040726A
Cited
US4499451A
Cited
US4506315A
Cited
US4588267A
Cited
US4613791A
Cited
US4626967A
Cited
US4646210A
Cited
US4516197A
Cited
US4630904A
Cited
US4659967A
Cited
US4665321A
Cited
US4807096A
Cited
US4733336A
Cited
US4793690A
Cited
US4868459A
Cited
US4917477A
Cited
US4886960A
Cited
US4799768A
Cited
US4791534A
Cited
US4893063A
Cited
US4841198A
Cited
US4935665A
Cited
US4882565A
Cited
US5014167A
Cited
US5174649A
Cited
US5174649B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |