US7784A - Improvement in photographic pictures on glass - Google Patents
Improvement in photographic pictures on glass Download PDFInfo
- Publication number
- US7784A US7784A US7784DA US7784A US 7784 A US7784 A US 7784A US 7784D A US7784D A US 7784DA US 7784 A US7784 A US 7784A
- Authority
- US
- United States
- Prior art keywords
- glass
- improvement
- picture
- photographic pictures
- ground
- 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
- 239000011521 glass Substances 0.000 title description 8
- 239000005338 frosted glass Substances 0.000 description 8
- 239000005337 ground glass Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 206010022114 Injury Diseases 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
- G02B27/025—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies and magnifying means
Definitions
- my invention consists in placing a semi-transparent material or substancefor example, ground or frosted g'lassin front or behind the said transparent picture, the effect of which is to concentrate the lightin the ground or frosted glass, at the same time preventing objects behind the picture from being visible through the lighter or more transpar-' ent parts of the picture, and which ground or frosted glass also protects the picture from external injury.
- a semi-transparent material or substancefor example, ground or frosted g'lassin front or behind the said transparent picture the effect of which is to concentrate the lightin the ground or frosted glass, at the same time preventing objects behind the picture from being visible through the lighter or more transpar-' ent parts of the picture, and which ground or frosted glass also protects the picture from external injury.
Description
UNITED STATES PATENT OFFICE.
FREDK. LANGENHEIM, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN PHOTOGRAPHIC PICTURES ON GLASS, 80C.
Specification forming part of Letters Patent No. 7,784, dated November 19, i850.
To all whom it may concern:
Be it known that I, FREDERICK LANGEN-t HEIM, of the city and, county of Philadelphia,"i and State of Pennsylvania, have invented a new and improved mode of hightening the efiect of transparent pictures represented on glass or any other transparent or semi-transparent material, at the same time protecting them from injury; and I do hereby declare that the following is a full and exact description.
The nature of my invention consists in placing a semi-transparent material or substancefor example, ground or frosted g'lassin front or behind the said transparent picture, the effect of which is to concentrate the lightin the ground or frosted glass, at the same time preventing objects behind the picture from being visible through the lighter or more transpar-' ent parts of the picture, and which ground or frosted glass also protects the picture from external injury.
In order to use my improvement to the best advantage, a ground or frosted glass or other semi-transparentmaterial is procured of the exact size of the glass or transparent material,
on which the picture is taken or represented with the ground or frosted surface next to the picture, and both glasses are then secured together by means of glue-paper put round the edges. By placing the picture near a Window,
.transparent material 011 which the picture is to be taken or after itis taken.
What I claim as my invention, and desire to secure by Letters Patent, is
The combination of the ground or frosted glass or other semi-transparent substance interposed, in connection with the picture, be tween the source of light and the spectator, substantially as described in the foregoing specification.
FREDERICK LANGENHEIM.
Witnesses:
O. T. EDDY, F. SCHREIBER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US7784A true US7784A (en) | 1850-11-19 |
Family
ID=2068110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US7784D Expired - Lifetime US7784A (en) | Improvement in photographic pictures on glass |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US7784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2811800A (en) * | 1954-12-09 | 1957-11-05 | Thaddeus J Gesek | Method of making a translucent graphic representation |
-
0
- US US7784D patent/US7784A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2811800A (en) * | 1954-12-09 | 1957-11-05 | Thaddeus J Gesek | Method of making a translucent graphic representation |
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