US285270A - Julius jaegeb - Google Patents
Julius jaegeb Download PDFInfo
- Publication number
- US285270A US285270A US285270DA US285270A US 285270 A US285270 A US 285270A US 285270D A US285270D A US 285270DA US 285270 A US285270 A US 285270A
- Authority
- US
- United States
- Prior art keywords
- julius
- jaegeb
- depressions
- ridges
- reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 206010012378 Depression Diseases 0.000 description 16
- 239000011324 bead Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
Definitions
- WITNESSES INVENTOR I c izzz 'us.fi ejer BY aim/K ATTORNEYS NA FETERS. Pnow-Lnhognplmn Washmglon. ac.
- said depressions be-.
- Figure 1 represents a plan or face view of one of my plates on an enlarged scale.
- Fig. 2 is a partial section of the same on a larger scale thanthe previous figure.
- the letter A designates a plate for a reflector, which may be made of sheet metal, porcelain, glass, or any other ma terial suitable for the purpose, and which, when made of sheet metal or other opaque ma terial, is coated on its surface with silver or other material capable of receiving a bright polish, while when said plate is made of glass its back is coated with quicksilver or equivalent material, so as to produce the'desired reflecting-surface, all of which is well known in the art, and forms no part of my invention.
- depressions are of the form above described, so that they are separated from each other by sharp or narrow ridges b, as shown in the drawings, without flat spaces, the reflection produced is almost of a uniform brightness; 'but I have found that the effect can be improved by forming on these ridges small beads c, as shown in the drawings, said beads serving to prevent the formation of any dark lines in the reflection.
- My plates can be used with advantage in conical, spherical, or parabolic reflectors, and also in reflectors of the form of a truncated pyramid, such as are in common use.
- My invention is applicable to any reflecting-surface in which the above-described depression can be formed.
- a reflecting-surface provided with triangular, square, or polygonal depressions which are separated from each other by sharp or narrow ridges of uniform height, and which are of such a form as to leave no flat spaces between them, substantially as shown and described.
- A' reflectingsurface provided with triangular, square, or polygonal depressions which are separated from each other by sharp or narrow ridges of uniform height, said ridges being formed with beads, substantially as and for thepurpose set forth.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Adornments (AREA)
- Optical Elements Other Than Lenses (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
No Model.)
J. JAEGER.
. REFLECTOR. No. 285,270.- Patented Sept. 18, 1883.
WITNESSES: INVENTOR I c izzz 'us.fi ejer BY aim/K ATTORNEYS NA FETERS. Pnow-Lnhognplmn Washmglon. ac.
--UNITED STATES PATENT OFFICE.
JULIUS J AEGER, OF RUTHERFORD PARK, NEWV JERSEY.
REFLECTO R.
SPECIFICATION forming part of Letters Patent No. 285,270, dated September 18, 1883.
- Application filed April 19,1883. (No model.)
ridges of uniform height, said depressions be-.
ing of such form that they fit-each other so as to leave no fiat spaces between them. j On the ridges are formed small beads, whereby dark lines in the reflection are prevented.
In the accompanying drawings, Figure 1 represents a plan or face view of one of my plates on an enlarged scale. Fig. 2 is a partial section of the same on a larger scale thanthe previous figure.
Similar letters indicate corresponding parts. In the drawings, the letter A designates a plate for a reflector, which may be made of sheet metal, porcelain, glass, or any other ma terial suitable for the purpose, and which, when made of sheet metal or other opaque ma terial, is coated on its surface with silver or other material capable of receiving a bright polish, while when said plate is made of glass its back is coated with quicksilver or equivalent material, so as to produce the'desired reflecting-surface, all of which is well known in the art, and forms no part of my invention.
In order to obtain a reflector which, when exposed to the flame of a lamp, produces a reflection of uniform brightness throughout its entire area, I provide my plate with depressions a of trian ular sc uare or 01 'onal' shape, which are separated from each other by sharp or narrow ridges b, of uniform height, and which are so formed that no flat spaces are leftbetween them. For this reason pentagonal or octagonal or circular depressions will not answer, since, if either of these forms is used for the depressions, flat spaces of various shapes will be formed between said depres sions, and the reflection produced by such a plate shows dark lines or spots. depressions are of the form above described, so that they are separated from each other by sharp or narrow ridges b, as shown in the drawings, without flat spaces, the reflection produced is almost of a uniform brightness; 'but I have found that the effect can be improved by forming on these ridges small beads c, as shown in the drawings, said beads serving to prevent the formation of any dark lines in the reflection.
My plates can be used with advantage in conical, spherical, or parabolic reflectors, and also in reflectors of the form of a truncated pyramid, such as are in common use. My invention, however, is applicable to any reflecting-surface in which the above-described depression can be formed.
I am aware that plates for reflectors have been used which are provided with circular concavities, and also such provided with diamond-shaped projections, and I distinctly disclaim plates of this form.
What I claim as new, and desire to secure by Letters Patent, is-
1. A reflecting-surface provided with triangular, square, or polygonal depressions which are separated from each other by sharp or narrow ridges of uniform height, and which are of such a form as to leave no flat spaces between them, substantially as shown and described.
2. A' reflectingsurface provided with triangular, square, or polygonal depressions which are separated from each other by sharp or narrow ridges of uniform height, said ridges being formed with beads, substantially as and for thepurpose set forth.
In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.
JULIUS JAEGER. [L s] Vitnesses:
W. HAUFF, H. G. BELL.
Then the v
Publications (1)
Publication Number | Publication Date |
---|---|
US285270A true US285270A (en) | 1883-09-18 |
Family
ID=2354471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US285270D Expired - Lifetime US285270A (en) | Julius jaegeb |
Country Status (1)
Country | Link |
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US (1) | US285270A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481757A (en) * | 1945-05-23 | 1949-09-13 | Thoger G Jungersen | Optical reflecting material |
US3450459A (en) * | 1965-10-24 | 1969-06-17 | Walter F Haggerty | Retroreflective device |
US4726134A (en) * | 1986-11-21 | 1988-02-23 | Minnesota Mining And Manufacturing Company | Roadway sign |
US5237449A (en) * | 1991-01-29 | 1993-08-17 | Nelson Optics Company, Inc. | Biased lenticular sign system |
US5889615A (en) * | 1997-06-27 | 1999-03-30 | Minnesota Mining And Manufacturing Company | Dual axis retroreflective articles |
US6253477B1 (en) * | 1998-09-23 | 2001-07-03 | Hallmark Technologies, Inc. | Retro-reflective sign |
US7425075B1 (en) | 2004-01-28 | 2008-09-16 | Hubbell David A | Optical reflecting material |
US20090320193A1 (en) * | 2001-07-30 | 2009-12-31 | 3M Innovative Properties Company | Vapor permeable retroreflective garment |
-
0
- US US285270D patent/US285270A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481757A (en) * | 1945-05-23 | 1949-09-13 | Thoger G Jungersen | Optical reflecting material |
US3450459A (en) * | 1965-10-24 | 1969-06-17 | Walter F Haggerty | Retroreflective device |
US4726134A (en) * | 1986-11-21 | 1988-02-23 | Minnesota Mining And Manufacturing Company | Roadway sign |
US5237449A (en) * | 1991-01-29 | 1993-08-17 | Nelson Optics Company, Inc. | Biased lenticular sign system |
US5889615A (en) * | 1997-06-27 | 1999-03-30 | Minnesota Mining And Manufacturing Company | Dual axis retroreflective articles |
US6253477B1 (en) * | 1998-09-23 | 2001-07-03 | Hallmark Technologies, Inc. | Retro-reflective sign |
US20090320193A1 (en) * | 2001-07-30 | 2009-12-31 | 3M Innovative Properties Company | Vapor permeable retroreflective garment |
US8015620B2 (en) | 2001-07-30 | 2011-09-13 | 3M Innovative Properties Company | Vapor permeable retroreflective garment |
US8256025B2 (en) | 2001-07-30 | 2012-09-04 | 3M Innovative Properties Company | Vapor permeable retroreflective garment |
US7425075B1 (en) | 2004-01-28 | 2008-09-16 | Hubbell David A | Optical reflecting material |
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