GB981625A - Improved television and film studio lamp - Google Patents

Improved television and film studio lamp

Info

Publication number
GB981625A
GB981625A GB28721/62A GB2872162A GB981625A GB 981625 A GB981625 A GB 981625A GB 28721/62 A GB28721/62 A GB 28721/62A GB 2872162 A GB2872162 A GB 2872162A GB 981625 A GB981625 A GB 981625A
Authority
GB
United Kingdom
Prior art keywords
bowl
lamp
carriage
mirror
projection
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
GB28721/62A
Inventor
Samuel Lewis Johnson
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.)
Mole Richardson England Ltd
Original Assignee
Mole Richardson England Ltd
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 Mole Richardson England Ltd filed Critical Mole Richardson England Ltd
Priority to GB28721/62A priority Critical patent/GB981625A/en
Publication of GB981625A publication Critical patent/GB981625A/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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

981,625. Lamps. MOLE-RICHARDSON (ENGLAND) Ltd. Oct. 24, 1963 [July 26, 1962; May 8, 19631, Nos. 28721/62 and 18239/63. Heading F4R. A lamp adapted to be used selectively either as a flood lamp or as a spot lamp comprises a bowl reflector 1, Fig. 1, for providing flood illumination and a lens 14 for focusing the spot, the bowl and lens facing in different directions so that the light emerges in different directions with alternative use. Conversion from one use to the other is achieved by rotating a spherical mirror 13 mounted on a turntable 18, the mirror being placed adjacent the lens, as shown in full lines, when a flood lamp is required and adjacent a diffusing bowl 16, as shown in chain-dotted lines, when the light is to be passed through the lens. The mirror and the bulb 11 are mounted on slides 22 so that they can be moved together, by means of a rack and pinion 23, 24, to adjust the focus of the spot, and eyes 20, 25 engageable by a hooked long-arm 7 are connected to pinions 19, 23 for rotating the mirror 13 and adjusting the focus respectively. In an alternative embodiment, Figs. 3, 5 and 8, the bulb 11 and mirror 13 are fixed to a carriage 27 and a conical diffusing bowl 16 is carried by a bracket 32 mounted on a shaped plate 33 pivoted to the supporting platform 10 at 34. When the diffusing bowl is positioned as shown in Figs. 3 and 5 the lamp operates as a flood lamp. To convert it to a spotlamp the carriage 27 is moved to the right and a projection 36 on the carriage engaging a slot 35 in the plate 33 causes the latter to turn about its pivot 34. After the projection has left the slot the bowl is given its final rotation into the position shown in Fig. 8 by the engagement of a cam 42 (not shown) on the bottom of the carriage with a projection 41 on a link 37 pivoted at one end 38 to the plate 33 and slidable at its other end in a slot 40 in the platform 10. This link acts as a toggle to hold the bowl 16 in its displaced position. When it is again desired to use the lamp as a floodlamp the carriage is moved to the left, whereupon the projection 36 re-enters the slot 35 to restore the bowl to its original position.
GB28721/62A 1962-07-26 1962-07-26 Improved television and film studio lamp Expired GB981625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28721/62A GB981625A (en) 1962-07-26 1962-07-26 Improved television and film studio lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28721/62A GB981625A (en) 1962-07-26 1962-07-26 Improved television and film studio lamp

Publications (1)

Publication Number Publication Date
GB981625A true GB981625A (en) 1965-01-27

Family

ID=10280033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28721/62A Expired GB981625A (en) 1962-07-26 1962-07-26 Improved television and film studio lamp

Country Status (1)

Country Link
GB (1) GB981625A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479414A1 (en) * 1980-03-29 1981-10-02 Original Hanau Heraeus Gmbh LIGHTING APPARATUS FOR OPERATING BLOCK WITH RING REFLECTOR
EP0152243A2 (en) * 1984-02-03 1985-08-21 The Rank Organisation Plc Control pole for luminaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479414A1 (en) * 1980-03-29 1981-10-02 Original Hanau Heraeus Gmbh LIGHTING APPARATUS FOR OPERATING BLOCK WITH RING REFLECTOR
EP0152243A2 (en) * 1984-02-03 1985-08-21 The Rank Organisation Plc Control pole for luminaires
EP0152243A3 (en) * 1984-02-03 1985-09-18 The Rank Organisation Plc Improvements in pole operation of luminaires

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