FR524882A - High efficiency, uniform distribution and adjustable intensity transparency lighting device - Google Patents

High efficiency, uniform distribution and adjustable intensity transparency lighting device

Info

Publication number
FR524882A
FR524882A FR524882A FR524882DA FR524882A FR 524882 A FR524882 A FR 524882A FR 524882 A FR524882 A FR 524882A FR 524882D A FR524882D A FR 524882DA FR 524882 A FR524882 A FR 524882A
Authority
FR
France
Prior art keywords
lighting device
high efficiency
uniform distribution
adjustable intensity
transparency 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
FR524882A
Other languages
French (fr)
Inventor
Aron Polack
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR524882A publication Critical patent/FR524882A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR524882A 1917-03-05 1917-03-05 High efficiency, uniform distribution and adjustable intensity transparency lighting device Expired FR524882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR524882T 1917-03-05

Publications (1)

Publication Number Publication Date
FR524882A true FR524882A (en) 1921-09-12

Family

ID=8919644

Family Applications (1)

Application Number Title Priority Date Filing Date
FR524882A Expired FR524882A (en) 1917-03-05 1917-03-05 High efficiency, uniform distribution and adjustable intensity transparency lighting device

Country Status (1)

Country Link
FR (1) FR524882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603896A (en) * 1948-02-25 1952-07-22 Jack O Bennett Chart holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603896A (en) * 1948-02-25 1952-07-22 Jack O Bennett Chart holder

Similar Documents

Publication Publication Date Title
ES314550A1 (en) A large area lighting device used in the technique of photocopy. (Machine-translation by Google Translate, not legally binding)
FR524882A (en) High efficiency, uniform distribution and adjustable intensity transparency lighting device
FR1365013A (en) Lighting fixture for elongated light source
FR642460A (en) Improvements to light tubes with high lighting intensity
FR1012098A (en) Linear light source luminaire
GB333198A (en) Improvements in or relating to means for optically projecting on to clouds
FR1050305A (en) Direct lighting fixture for rectilinear light sources
FR892338A (en) Support for lighting devices for shooting in artificial light
GB373052A (en) Improvements in devices emitting intermittent light signals
FR884650A (en) Luminaire with light beam adjustable in direction and intensity
FR47247E (en) Adjustable lighting fixture
FR1000239A (en) Device for masking the light source in fluorescent tube lighting or the like
FR722696A (en) Diffusing reflector light fixture
GB206080A (en) An improved adjustable lamp shade holder for electric, gas and oil lamps or the like
GB270791A (en) Light projecting apparatus
FR873348A (en) Hub-mounted light generator
FR642508A (en) Electric lighting fixture with adjustable luminous flux for typewriters, counting machines, etc.
FR35583E (en) Lighting fixture with diffusing globe
FR652346A (en) Lighting fixture with diffusing globe
GR9659B (en) GLASS OR CRYSTAL ADJUSTMENT SYSTEM IN POWER LAMP ELECTRIC LAMPS.
FR722673A (en) Lighting apparatus using rectilinear light sources
FR1075968A (en) Street lighting device with continuous linear light source
GB995255A (en) Prismatic refractors and electric lighting fittings incorporating such refractors
FR50777E (en) Adjustable lighting fixture
FR694039A (en) Portable adjustable clamp lamp with rotating reflector