BE447717A - Dispositif d'occultation pour projecteurs de lumiére, notamment pour lanternes à main. - Google Patents
Dispositif d'occultation pour projecteurs de lumiére, notamment pour lanternes à main.Info
- Publication number
- BE447717A BE447717A BE447717A BE447717A BE447717A BE 447717 A BE447717 A BE 447717A BE 447717 A BE447717 A BE 447717A BE 447717 A BE447717 A BE 447717A BE 447717 A BE447717 A BE 447717A
- Authority
- BE
- Belgium
- Prior art keywords
- light projectors
- blackout device
- hand lanterns
- lanterns
- hand
- Prior art date
Links
- 241001465382 Physalis alkekengi Species 0.000 title 1
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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L2/00—Systems of electric lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE887248X | 1941-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447717A true BE447717A (fr) | 1942-11-30 |
Family
ID=6833691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447717A BE447717A (fr) | 1941-10-27 | 1942-10-27 | Dispositif d'occultation pour projecteurs de lumiére, notamment pour lanternes à main. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE447717A (fr) |
| CH (1) | CH230360A (fr) |
| FR (1) | FR887248A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264372B2 (en) * | 2004-03-16 | 2007-09-04 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
| US8366290B2 (en) | 2009-01-14 | 2013-02-05 | Mag Instrument, Inc. | Portable lighting device |
-
1942
- 1942-10-12 CH CH230360D patent/CH230360A/de unknown
- 1942-10-26 FR FR887248D patent/FR887248A/fr not_active Expired
- 1942-10-27 BE BE447717A patent/BE447717A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR887248A (fr) | 1943-11-08 |
| CH230360A (de) | 1943-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE447717A (fr) | Dispositif d'occultation pour projecteurs de lumiére, notamment pour lanternes à main. | |
| FR875760A (fr) | Dispositif d'articulation | |
| CH226241A (de) | Vergrösserungsgerät mit zwangsläufiger Scharfeinstellung. | |
| CH272145A (fr) | Dispositif d'amarrage. | |
| FR879862A (fr) | Dispositif de chasse pour métier à tisser | |
| FR866192A (fr) | Dispositif simplifié, émetteur-récepteur d'images | |
| FR883385A (fr) | Dispositif d'éclairage à lentille étagée | |
| FR972902A (fr) | Réflecteur combiné pour appareils de projection d'images | |
| FR893913A (fr) | Dispositif d'éclairage | |
| CH262342A (it) | Dispositif porte-outils à galets de serrage. | |
| GR9649B (el) | Ομιλητικη συσκευη μετ' επαφης (abtastung) κυκλικης ταινιας. | |
| FR874716A (fr) | Dispositif optique destiné à la projection stéréoscopique | |
| FR866700A (fr) | Dispositif de recomposition de lumière | |
| FR833121A (fr) | Dispositif d'éclairage pour appareils de projection, cinématographes, etc. | |
| FR884929A (fr) | Dispositif d'éclairage destiné en particulier à la projection | |
| FR889213A (fr) | Dispositif d'embrayage | |
| FR878713A (fr) | Dispositif d'occultation réglable pour lampes électriques | |
| CH225796A (de) | Kinoprojektor. | |
| FR863054A (fr) | Dispositif d'occultation | |
| FR884733A (fr) | Dispositif pour l'étirage de fils de verre fins | |
| DK65097C (da) | Anordning ved fotografiske Kameraer. | |
| FR865069A (fr) | Dispositif projecteur de lumière | |
| FR881066A (fr) | Dispositif de guidage de film | |
| CH267848A (fr) | Dispositif d'amarrage. | |
| CH266544A (fr) | Dispositif d'amarrage. |