FR1141720A - Variable curvature projector for linear light source - Google Patents

Variable curvature projector for linear light source

Info

Publication number
FR1141720A
FR1141720A FR1141720DA FR1141720A FR 1141720 A FR1141720 A FR 1141720A FR 1141720D A FR1141720D A FR 1141720DA FR 1141720 A FR1141720 A FR 1141720A
Authority
FR
France
Prior art keywords
projector
light source
linear light
variable curvature
curvature
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
French (fr)
Inventor
Antonio Severi
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 filed Critical
Application granted granted Critical
Publication of FR1141720A publication Critical patent/FR1141720A/en
Expired legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1141720D 1955-02-26 1956-02-20 Variable curvature projector for linear light source Expired FR1141720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1141720X 1955-02-26

Publications (1)

Publication Number Publication Date
FR1141720A true FR1141720A (en) 1957-09-06

Family

ID=11431824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1141720D Expired FR1141720A (en) 1955-02-26 1956-02-20 Variable curvature projector for linear light source

Country Status (1)

Country Link
FR (1) FR1141720A (en)

Similar Documents

Publication Publication Date Title
FR1126666A (en) Apparatus for tensioning a moving filament
CH325526A (en) Photographic lens
CH339394A (en) Photographic telephoto lens
CH320404A (en) Photographic lens
FR1141720A (en) Variable curvature projector for linear light source
CH339753A (en) Photographic telephoto lens
CH333579A (en) Photographic lens
FR1170238A (en) Store pass for projection lantern
CH338312A (en) Photographic telephoto lens
CH338032A (en) Photographic telephoto lens
FR1156781A (en) Cinematographic projector, preferably for narrow films
FR66738E (en) Projector Lamp Improvements
FR68510E (en) Photographic lens
CH328130A (en) Photographic lens
FR1129721A (en) New light
FR1175350A (en) Projector lens
ES42176Y (en) Support for overlapping lenses
FR1096952A (en) Colorful light distributor projector
CH324956A (en) Flashing light
AT197723B (en) Street light guide
FR1163108A (en) Stereoscopic lantern for transparent projection
FR1160457A (en) Photographic lens
FR1156020A (en) Photographic lens
FR1163453A (en) Photographic lens
AT192149B (en) Projector