GB520079A - Improvements in and relating to spotlights or projectors - Google Patents

Improvements in and relating to spotlights or projectors

Info

Publication number
GB520079A
GB520079A GB2661438A GB2661438A GB520079A GB 520079 A GB520079 A GB 520079A GB 2661438 A GB2661438 A GB 2661438A GB 2661438 A GB2661438 A GB 2661438A GB 520079 A GB520079 A GB 520079A
Authority
GB
United Kingdom
Prior art keywords
spotlights
projectors
relating
reflectors
riccomagno
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
GB2661438A
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
Priority to GB2661438A priority Critical patent/GB520079A/en
Publication of GB520079A publication Critical patent/GB520079A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/003—Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/06—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/1005—Outdoor lighting of working places, building sites or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Particle Accelerators (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

520,079. Revolving searchlights. RICCOMAGNO, G. Sept. 12, 1938, 26614. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 11, 1939.] [Class 75 (iv)] A searchlight or projector intended to use when in operation the principle of the persistence of vision comprises a number of parabolic reflectors 35. 36, 37 with a single source, as shown, mounted so as to be rotatable about a common axis at a speed, always high, but inversely proportional to the number of reflectors in use.
GB2661438A 1938-09-12 1938-09-12 Improvements in and relating to spotlights or projectors Expired GB520079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2661438A GB520079A (en) 1938-09-12 1938-09-12 Improvements in and relating to spotlights or projectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2661438A GB520079A (en) 1938-09-12 1938-09-12 Improvements in and relating to spotlights or projectors

Publications (1)

Publication Number Publication Date
GB520079A true GB520079A (en) 1940-04-15

Family

ID=10246394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2661438A Expired GB520079A (en) 1938-09-12 1938-09-12 Improvements in and relating to spotlights or projectors

Country Status (1)

Country Link
GB (1) GB520079A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112075A (en) * 1961-07-27 1963-11-26 Sparks Arthur Leonard Lamp housings for use in connection with photographic apparatus
GB2307736A (en) * 1995-12-01 1997-06-04 Leslie Adrian Alfred Woolard Method and device for area illumination
GB2321955A (en) * 1997-06-03 1998-08-12 Leslie Adrian Alfred Woolard Method and device giving apparent continous illumination

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112075A (en) * 1961-07-27 1963-11-26 Sparks Arthur Leonard Lamp housings for use in connection with photographic apparatus
GB2307736A (en) * 1995-12-01 1997-06-04 Leslie Adrian Alfred Woolard Method and device for area illumination
GB2321955A (en) * 1997-06-03 1998-08-12 Leslie Adrian Alfred Woolard Method and device giving apparent continous illumination
US6352357B1 (en) 1997-06-03 2002-03-05 Leslie Adrian Alfred Woolard Illumination method and device
GB2321955B (en) * 1997-06-03 2002-06-19 Leslie Adrian Alfred Woolard An illumination method and device

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