US155944A - Improvement in photographic screens and reflectors - Google Patents
Improvement in photographic screens and reflectors Download PDFInfo
- Publication number
- US155944A US155944A US155944DA US155944A US 155944 A US155944 A US 155944A US 155944D A US155944D A US 155944DA US 155944 A US155944 A US 155944A
- Authority
- US
- United States
- Prior art keywords
- reflectors
- improvement
- light
- photographic
- reflector
- 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
- 241000158147 Sator Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
Definitions
- my invention consists in the combination of two hollowT reflectors, one above the other, capable of turning on suitable centers, so constructed that the light is concentrated in the upper reiector at any particular point, while the shadows are modified or lessened by the position of the lower reliector.
- A is a concave reflector, about tive feet in diameter and ten feet focus, hung in a suitable frame, O, on centers c o, which enables said reliector to be placed in the desired position to concentrate the light in any place.
- This frame G is attached, by means of a screw, n, to another frame, D, in such a manner as to be capable of turning around said screw a.
- a hollow reflector, B is hung on screws w w.
- the reiiectors A and B can be made of any light material, such as wood or pasteboard, and lined with tin-foil.
- the reflector B Iprefer to make about three feet high and of twen ty feet radius.
- This light-condensator is particularly intended for the use of photographers.
- the apparatus When a portrait is to be taken, the apparatus is placed from seven to eight feet from the person. The light is concentrated by the upper reflector A on the face of the person, while the shadows are modified or lessened by the position of the lower reiiector B.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Meat, Egg Or Seafood Products (AREA)
Description
H. HAMMENSTEDE.
Photographic Screens and Reflectors. No.155944', Patented Oct. 13, 1874.
UNITED STATES PATENT 0FFICE i HENRY HAMMENSTEDE, OF NEW YORK, N. Y.
IMPROVEMENT IN PHOTOGRAPHIC SCREENS AND REFLECTORS.
Specification forming part of Letters Patent No. l 55,944, dated October 13, 1874; application filed September 9, 1874.
T r all whom 'it may concern:
Be it known that I, HENRY HAMMENsTEDE, of New York, in the State of New York, have invented a new and improved Light-Conde sator, of which the following is a specification:
The nature of my invention consists in the combination of two hollowT reflectors, one above the other, capable of turning on suitable centers, so constructed that the light is concentrated in the upper reiector at any particular point, while the shadows are modified or lessened by the position of the lower reliector.
The accompanying drawing represents a front View of a light-condensator embodying my invention.
A is a concave reflector, about tive feet in diameter and ten feet focus, hung in a suitable frame, O, on centers c o, which enables said reliector to be placed in the desired position to concentrate the light in any place. This frame G is attached, by means of a screw, n, to another frame, D, in such a manner as to be capable of turning around said screw a. In the lower frame D a hollow reflector, B, is hung on screws w w.
The reiiectors A and B can be made of any light material, such as wood or pasteboard, and lined with tin-foil. The reflector B Iprefer to make about three feet high and of twen ty feet radius.
This light-condensator is particularly intended for the use of photographers. When a portrait is to be taken, the apparatus is placed from seven to eight feet from the person. The light is concentrated by the upper reflector A on the face of the person, while the shadows are modified or lessened by the position of the lower reiiector B.
What I claim as my invention, and desire to secure by Letters Patent, is-
In a photographic screen and reflector, the combination of a concave reiiector, A, supported in a frame, C, and turning on a central pin, n, with a segmental pivoted reflector, B, supported on the lower frame D, all arranged in the manner and for the purpose substantially as set forth.
HENRY HAMMENSTEDE.
Witnesses:
HENRY E. ROEDEE, E. SGHULEE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US155944A true US155944A (en) | 1874-10-13 |
Family
ID=2225354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US155944D Expired - Lifetime US155944A (en) | Improvement in photographic screens and reflectors |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US155944A (en) |
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0
- US US155944D patent/US155944A/en not_active Expired - Lifetime
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