DE379669C - Light protection device for lenses - Google Patents
Light protection device for lensesInfo
- Publication number
- DE379669C DE379669C DESCH63212D DESC063212D DE379669C DE 379669 C DE379669 C DE 379669C DE SCH63212 D DESCH63212 D DE SCH63212D DE SC063212 D DESC063212 D DE SC063212D DE 379669 C DE379669 C DE 379669C
- Authority
- DE
- Germany
- Prior art keywords
- lenses
- protection device
- light protection
- flaps
- frame
- 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
Links
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
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
- G03B11/045—Lens hoods or shields
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Blocking Light For Cameras (AREA)
Description
Es ist bekannt, vor den Objektiven von photographischen Kameras einen Lichtschutz anzubringen, welcher entweder aus einem kastenartigen Vorbau oder aus einem mit einstellbaren Jalousien versehenen Rahmen besteht. Die Einstellung erfolgt bei der bekannten Vorrichtung durch um die Ecke geführte Holzjalousien, die man von Hand beliebig weit öffnen oder schließen kann. Demgegenüber sind nach der Erfindung Klappen angelenkt, welche durch Federn gegen Stellschrauben gedrückt werden. Hierdirrclr ■ - wird die Bewegung der zu verstellenden Teile erleichtert, und außer Gebrauch kann die Vor- i richtung flach zusammengelegt und in die j Tasche gesteckt werden.It is known to use a light protection in front of the lenses of photographic cameras to attach, which either from a box-like stem or from an adjustable There is blinded frame. The setting is made in the known device by guided around the corner Wooden blinds that can be opened or closed as far as you want by hand. In contrast are hinged according to the invention flaps, which by springs against adjusting screws be pressed. This causes the movement of the parts to be adjusted facilitated, and when not in use, the device can be folded flat and placed in the j Pocket.
In der Zeichnung ist ein Ausführungsbeispiel einer solchen Lichtblende in Abb. 1 in Seiten- und in Alb. 2 in Vorderansicht dar- ' gestellt.In the drawing, an embodiment of such a light screen is shown in Fig. 1 in side and in Alb. 2 placed in front view DAR '.
Ein Rahmen α hat eine Öffnung b und auf der Rückseite eine zweiteilige Schelle c, welche durch eine mit Griff versehene Schraube d verstellt werden kann. Mit Hilfe der Schelle c wird der Rahmen α auf dem Objektiv e der Kamera mit Hilfe der Schraube d festgeklemmt. A frame α has an opening b and on the back a two-part clamp c, which can be adjusted by a screw d provided with a handle. With the aid of the clamp c , the frame α is clamped onto the lens e of the camera with the aid of the screw d.
Am Rahmen α sind an den vier Kanten Klappen / scharnierartig angelenkt, welche trapezförmig gestaltet sind und durch um die Achsen gewickelte Federn g nach außen gedreht werden. Jede Klappe legt sich dabei gegen eine Stellschraube Ii, welche nach Erfordernis der Lichtabblendung mehr oder weniger die Klappen schließen oder öffnen. - Bei Nichtgebrauch können die Klappen / zusammengelegt und durch einen Riegel ir gehalten werden. Der Rahmen α kann auch zum Einschieben einer Gelbscheibe mit einem hinter der Öffnung b liegenden Fach / versehen sein.At the four edges of the frame α , flaps / hinge-like are articulated, which are trapezoidal in shape and are rotated outward by springs g wound around the axes. Each flap rests against an adjusting screw Ii, which more or less closes or opens the flaps depending on the light masking requirement. - When not in use, the flaps / can be folded up and held in place with a latch ir. The frame α can also be provided with a compartment / located behind the opening b for inserting a yellow disc.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH63212D DE379669C (en) | Light protection device for lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH63212D DE379669C (en) | Light protection device for lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE379669C true DE379669C (en) | 1923-08-27 |
Family
ID=7437937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH63212D Expired DE379669C (en) | Light protection device for lenses |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE379669C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045117A (en) * | 1976-04-23 | 1977-08-30 | Jack Lerner | Combined camera lens cap and lens shade |
| FR2562680A1 (en) * | 1984-04-10 | 1985-10-11 | Raphael Maurice | Combined lens cap and sun shield |
-
0
- DE DESCH63212D patent/DE379669C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045117A (en) * | 1976-04-23 | 1977-08-30 | Jack Lerner | Combined camera lens cap and lens shade |
| FR2562680A1 (en) * | 1984-04-10 | 1985-10-11 | Raphael Maurice | Combined lens cap and sun shield |
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