FR1096668A - Perfectionnement aux projecteurs de lumière à miroir concave - Google Patents
Perfectionnement aux projecteurs de lumière à miroir concaveInfo
- Publication number
- FR1096668A FR1096668A FR1096668DA FR1096668A FR 1096668 A FR1096668 A FR 1096668A FR 1096668D A FR1096668D A FR 1096668DA FR 1096668 A FR1096668 A FR 1096668A
- Authority
- FR
- France
- Prior art keywords
- improvement
- concave mirror
- light projectors
- mirror light
- projectors
- 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
-
- 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
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1096668T | 1953-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1096668A true FR1096668A (fr) | 1955-06-23 |
Family
ID=9618268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1096668D Expired FR1096668A (fr) | 1953-12-28 | 1953-12-28 | Perfectionnement aux projecteurs de lumière à miroir concave |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1096668A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002066890A1 (fr) | 2001-02-21 | 2002-08-29 | Koninklijke Philips Electronics N.V. | Lampe electrique |
-
1953
- 1953-12-28 FR FR1096668D patent/FR1096668A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002066890A1 (fr) | 2001-02-21 | 2002-08-29 | Koninklijke Philips Electronics N.V. | Lampe electrique |
US6690102B2 (en) | 2001-02-21 | 2004-02-10 | Koninklijke Philips Electronics N.V. | Electric lamp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1113141A (fr) | Téléobjectif lumineux | |
CH327792A (de) | Photographisches Objektiv | |
CH320404A (de) | Photographisches Objektiv | |
FR1096963A (fr) | Objectif grand angulaire | |
FR1096668A (fr) | Perfectionnement aux projecteurs de lumière à miroir concave | |
CH314696A (de) | Photographisches Objektiv | |
CH313413A (de) | Photographisches Objektiv | |
FR1101615A (fr) | Perfectionnements aux microscopes à miroirs | |
CH321944A (de) | Photographisches Objektiv | |
FR1112429A (fr) | Lentille optique | |
CH321572A (de) | Photographisches Objektiv | |
FR1053263A (fr) | Objectif à miroirs | |
FR1074236A (fr) | Microdiapositif à lentille | |
FR1080666A (fr) | Projecteur à fluorescence | |
FR1075872A (fr) | ?cran de projection | |
FR1090093A (fr) | Objectif stéréophotographique bi-lenticulaire à double diaphragme synchronisé | |
FR1076281A (fr) | Objectif lumineux grand-angulaire | |
FR1143595A (fr) | Perfectionnements aux systèmes optiques | |
CH321571A (de) | Photographisches Objektiv | |
FR64561E (fr) | Rétroviseur | |
AT190388B (de) | Umlenkspiegel für Bildwerfer | |
ES35126Y (es) | Proyector de imágenes fijas | |
FR1094577A (fr) | Perfectionnements aux lanternes de projection | |
FR65091E (fr) | Perfectionnements aux miroirs, réflecteurs et projecteurs | |
FR1107029A (fr) | Projecteur cinématographique |