GB418718A - Improvements relating to searchlights - Google Patents

Improvements relating to searchlights

Info

Publication number
GB418718A
GB418718A GB3742/34A GB374234A GB418718A GB 418718 A GB418718 A GB 418718A GB 3742/34 A GB3742/34 A GB 3742/34A GB 374234 A GB374234 A GB 374234A GB 418718 A GB418718 A GB 418718A
Authority
GB
United Kingdom
Prior art keywords
dispersion
quadrants
sets
produced
sub
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
GB3742/34A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB418718A publication Critical patent/GB418718A/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
    • F21V5/00—Refractors for light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

418,718. Dispersion means for searchlights. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 5, 1934, No. 3742. Convention date, Feb. 10, 1933. [Class 75 (ii).] A searchlight with variable dispersion means, particularly for following aircraft, is provided with a plurality of dispersion sets through which the light passes successively and which are rotatable relatively to one another about the optical axis or axes parallel thereto, with the effect that in one position of alignment a concentrated light beam is produced, whilst in another position a dispersed beam is produced. The two dispersion sets shown in the Figures are arranged co-axially, and comprise sub-dispersion-sets contained in the quadrants 5-12. The quadrants 6, 8, 9, 11 contain series of prisms which deflect the light passing through them, and the quadrants 5, 7, 10, 12, contain plain glass or sub-dispersion-sets of different deflecting or dispersive power. When the quadrants 9, 11 are in line with the quadrants 5, 7, a dispersed beam is produced and when the quadrants 9, 11 are in line with the quadrants 6, 8, the beam is concentrated, the sub-dispersion-sets neutralizing the effect of one another. The dispersion sets are carried by frames 1, 3, guide rollers on the frame 1 running in a groove in the frame 3. The rotatable set is provided a remotely controlled electrical drive, which can be changed over to hand drive.
GB3742/34A 1933-02-10 1934-02-05 Improvements relating to searchlights Expired GB418718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE418718X 1933-02-10

Publications (1)

Publication Number Publication Date
GB418718A true GB418718A (en) 1934-10-30

Family

ID=6448881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3742/34A Expired GB418718A (en) 1933-02-10 1934-02-05 Improvements relating to searchlights

Country Status (1)

Country Link
GB (1) GB418718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281786A1 (en) * 1987-02-27 1988-09-14 Siemens Aktiengesellschaft Infrared emitter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281786A1 (en) * 1987-02-27 1988-09-14 Siemens Aktiengesellschaft Infrared emitter system

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