FR944880A - Perfectionnement aux projecteurs lumineux - Google Patents

Perfectionnement aux projecteurs lumineux

Info

Publication number
FR944880A
FR944880A FR944880DA FR944880A FR 944880 A FR944880 A FR 944880A FR 944880D A FR944880D A FR 944880DA FR 944880 A FR944880 A FR 944880A
Authority
FR
France
Prior art keywords
advanced lighting
lighting projectors
projectors
advanced
lighting
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
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maison Breguet SA
Original Assignee
Maison Breguet SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maison Breguet SA filed Critical Maison Breguet SA
Application granted granted Critical
Publication of FR944880A publication Critical patent/FR944880A/fr
Expired legal-status Critical Current

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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2026—Gas discharge type light sources, e.g. arcs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR944880D 1947-03-28 1947-03-28 Perfectionnement aux projecteurs lumineux Expired FR944880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944880T 1947-03-28

Publications (1)

Publication Number Publication Date
FR944880A true FR944880A (fr) 1949-04-19

Family

ID=9472008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944880D Expired FR944880A (fr) 1947-03-28 1947-03-28 Perfectionnement aux projecteurs lumineux

Country Status (1)

Country Link
FR (1) FR944880A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222981A (en) * 1961-11-24 1965-12-14 James W Lucas Two-element projection lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222981A (en) * 1961-11-24 1965-12-14 James W Lucas Two-element projection lens

Similar Documents

Publication Publication Date Title
FR935630A (fr) Perfectionnements aux lampes projecteurs
FR944880A (fr) Perfectionnement aux projecteurs lumineux
FR949132A (fr) Perfectionnements aux brûleurs
FR968759A (fr) Photomètre
AT167805B (de) Beleuchtungsstativ
FR1005546A (fr) Perfectionnement aux fermetures
FR916831A (fr) Perfectionnements aux abat-jour
FR937318A (fr) Perfectionnements aux lampes
FR971807A (fr) Perfectionnements aux lampes éclairs
FR57610E (fr) Perfectionnements aux lampes éclair
FR1095802A (fr) Perfectionnements aux compresseurs
FR940421A (fr) Passe-film
FR935612A (fr) Perfectionnements aux lettres-enveloppes
FR1005082A (fr) Perfectionnements apportés aux projecteurs
FR950613A (fr) Projecteur
FR947703A (fr) Perfectionnements aux carburateurs
FR943905A (fr) Perfectionnements aux abat-jour
FR921034A (fr) Perfectionnements aux lampes de projection
FR933155A (fr) Perfectionnements aux lampes de projection
FR969796A (fr) Perfectionnements aux freins
FR1006097A (fr) Perfectionnements aux cazettes
ES179653A1 (es) Pantalla luminosa para cinematografía
FR945721A (fr) Perfectionnements aux projecteurs lumineux
FR1051319A (fr) Abat-jour démontable
FR969559A (fr) Lampe-éclair