US1008329A - Arc-light diffuser. - Google Patents
Arc-light diffuser. Download PDFInfo
- Publication number
- US1008329A US1008329A US60530711A US1911605307A US1008329A US 1008329 A US1008329 A US 1008329A US 60530711 A US60530711 A US 60530711A US 1911605307 A US1911605307 A US 1911605307A US 1008329 A US1008329 A US 1008329A
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- US
- United States
- Prior art keywords
- arc
- light
- box
- lens
- light diffuser
- 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
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- 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
- G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
- G02B27/20—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective for imaging minute objects, e.g. light-pointer
Definitions
- the object of this invention is to provide a new and improved diffuser for cutting od light for arc lamps.
- I provide a pair of shutter slides, having together a combined diamond opening by preference, which slides will approach a line drawn between the arc and the center of the lens.
- the slides are preferably formed so as to be parallel with the lens. Suitable mechanism is provided for operating the slides.
- Figure l is a sectional side elevation of arc containing boxes provided with my improved invention.
- Fig. 2 is a face view of the slide mechanism without the outer boX.
- Fig. 3 is a partial section taken on line 3 3 Fig. 2.
- 1 is a boX or container for the arc mechanism provided with a lens 3.
- a casing or frame 3' is provided, in which is mounted a frame 4 carrying the carbons 5 and 6.
- the frame 4 and the carbons' are diagrammatically represented in the drawings.
- An aperture 7 in the front plate 8 is provided in line with the arc and the center of the lens, and on the plate 8 are vertical guide strips 9, in which are mounted slides 10 and 11 overlapping one another, and provided Specification of Letters Patent.
- each wit-h an angular opening so that the two slides or shutters 10-11 may occupy a position in Fig. 2 entirely free and clear of the opening 7, but may be advanced toward each other to produce a diamond or square shaped opening within the area of the opening 7 until the two slides are advanced to such a degree that all light will be shut off from the boX.
- I provide on each shutter a threaded lug 12, into which a right and left threaded screw 13 is adjusted.
- a bearing 14 is provided for the screw at the top of the boX in this instance, and a beveled gear 15 secured fast on the screw.
- the shutters shall move ⁇ on a line parallel with the lens, although the arc carbons in work of this character are placed on an oblique line for reasons well known in the profession,
- the herein described arc light dilfuser consisting of a source of light and a light proof containing box therefor provided with an aperture, a lens provided exterior to said box, a pair of shutters adapted to collectively pass between the arc and the lens, and means for moving them toward and away from each other, said mechanism consisting of a handle and threaded connections between the handle and the shutters, said mechanism beingmounted upon the inclosing boX.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
A. H. HAWKES.
ARG LIGHT DIFFUSER.
APPLICATION FILED 11111.28, 1911. 1,008,329 Patented NOV. 14, 1911.
I llIlIllllllllll- Illllllllllllllm\\\\\\\\\m lvl/f affari/gy.-
coLUMBIA PLANOGRAPN COWASHINGTON. D, c.
IINTTEB STATES PATENT QFFTCF.
ALBERT H. HAWKES, 0F NEW YORK, N. Y.
ARC-LIGHT DIFFUSER.
To all 'whom it may concern:
Be it known that I, ALBERT H. HAWKES, a citizen of the United States, residing at New York city, in the borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Arc-Light Ditfusers, of which the following is a clear, full, and exact description.
The object of this invention is to provide a new and improved diffuser for cutting od light for arc lamps.
In the use of arc lamps in theaters and elsewhere it is often necessary to shut off the light. To turn off the current is not sufficientfor the glow of the carbons lasts an appreciable time whether the lamp is used as an ordinary stage illuminating means or for stereopticon use.
According to this invention, I provide a pair of shutter slides, having together a combined diamond opening by preference, which slides will approach a line drawn between the arc and the center of the lens. The slides are preferably formed so as to be parallel with the lens. Suitable mechanism is provided for operating the slides.
The scope of my invention will be pointed out in the claims.
In the accompanying drawings: Figure l is a sectional side elevation of arc containing boxes provided with my improved invention. Fig. 2 is a face view of the slide mechanism without the outer boX. Fig. 3 is a partial section taken on line 3 3 Fig. 2.
As shown in the drawings, 1 is a boX or container for the arc mechanism provided with a lens 3. Within the` boX 2 a casing or frame 3' is provided, in which is mounted a frame 4 carrying the carbons 5 and 6. The frame 4 and the carbons' are diagrammatically represented in the drawings. An aperture 7 in the front plate 8 is provided in line with the arc and the center of the lens, and on the plate 8 are vertical guide strips 9, in which are mounted slides 10 and 11 overlapping one another, and provided Specification of Letters Patent.
Application filed January 28, 1911.
Patented Nov. 14, 191.1.
Serial No. 605,307.
each wit-h an angular opening, so that the two slides or shutters 10-11 may occupy a position in Fig. 2 entirely free and clear of the opening 7, but may be advanced toward each other to produce a diamond or square shaped opening within the area of the opening 7 until the two slides are advanced to such a degree that all light will be shut off from the boX. In order to advance the shutters simultaneously I provide on each shutter a threaded lug 12, into which a right and left threaded screw 13 is adjusted. A bearing 14 is provided for the screw at the top of the boX in this instance, and a beveled gear 15 secured fast on the screw. A beveled gear 16 at the end of an operating rod 17, which is provided with a handle 18 outside of the boX, is adapted for control by the operator to move the shutters toward and from each other. In order to keep the light at all times through the center of the lens from the arc I provide that the shutters shall move` on a line parallel with the lens, although the arc carbons in work of this character are placed on an oblique line for reasons well known in the profession,
I claim as my invention:
The herein described arc light dilfuser consisting of a source of light and a light proof containing box therefor provided with an aperture, a lens provided exterior to said box, a pair of shutters adapted to collectively pass between the arc and the lens, and means for moving them toward and away from each other, said mechanism consisting of a handle and threaded connections between the handle and the shutters, said mechanism beingmounted upon the inclosing boX.
Signed at New York city, New York, this 21st day of October 1910.
ALBERT H. IIAWKES.
Vitnesses:
CHAs. F. PECK, WM. SooNs, Jr.
Copies -of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60530711A US1008329A (en) | 1911-01-28 | 1911-01-28 | Arc-light diffuser. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60530711A US1008329A (en) | 1911-01-28 | 1911-01-28 | Arc-light diffuser. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1008329A true US1008329A (en) | 1911-11-14 |
Family
ID=3076640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US60530711A Expired - Lifetime US1008329A (en) | 1911-01-28 | 1911-01-28 | Arc-light diffuser. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1008329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3207926A1 (en) * | 1982-03-05 | 1983-09-15 | Leybold-Heraeus GmbH, 5000 Köln | Experiment light |
-
1911
- 1911-01-28 US US60530711A patent/US1008329A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3207926A1 (en) * | 1982-03-05 | 1983-09-15 | Leybold-Heraeus GmbH, 5000 Köln | Experiment light |
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