GB663840A - A regulable optical illumination system - Google Patents

A regulable optical illumination system

Info

Publication number
GB663840A
GB663840A GB33765/47A GB3376547A GB663840A GB 663840 A GB663840 A GB 663840A GB 33765/47 A GB33765/47 A GB 33765/47A GB 3376547 A GB3376547 A GB 3376547A GB 663840 A GB663840 A GB 663840A
Authority
GB
United Kingdom
Prior art keywords
colour
intensity
beams
elementary
controlling
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
GB33765/47A
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
Publication of GB663840A publication Critical patent/GB663840A/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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

663,840. Illumination systems. GRETENER, E. Dec. 22,1947 [Dec. 18, 1946], No. 33765/47. Class 97 (i). An optical illumination system comprises a light source, a lenticular screen to split up the beam from said source into a great number of elementary beams and forming as many images of said source, a device positioned at or near each image point for controlling the colour or intensity of each elementary beam; or two devices positioned at or near each image point, one for controlling the colour and the other for controlling the intensity of each elementary beam, means for operating each device independently of the others and means for simultaneously operating the colour and/or intensity controlling devices; or a device positioned at or near each image point and common to all the elementary beams for simultaneous control of the colour or intensity of all such beams; or two devices positioned at or near each image point and common to all the elementary beams, one for simultaneous control of the intensity and the other for simultaneous control of the colour of all elementary beams, so that the elementary beams may be separately or simultaneously, or only simultaneously, adjustable in respect of light intensity or colour. A sound lenticular screen may be provided and forms an image of each image of the light source produced by the first lenticular screen, and a colour or intensity controlling device may be positioned at or near each of the first and sound image points. As shown in Fig. 2, a light beam is directed by a concave mirror (not shown), from a source, e.g. an arc lamp on to a lenticular screen 3, each element 7 of which forms at 4 an image of the source. At or near each image point 4 is disposed a colour or intensity controlling device 6. Each colour controlling device may comprise a filter, Fig. 4, the colour shade of which varies in one direction and the colour saturation of which varies in the orthogonal direction so that by moving the filter in orthogonal directions the hue F and saturation S of the beam in which the filter is situated may be varied. Each device 6 may consist of two plates I, II, Fig. 5, having similar apertures and movable in orthogonal directions to vary the cross-section of the transmitted beam. 'The number of apertures in each plate I and II may be equal to the number of elementary light beams so that simultaneous control of the intensity of said beams may be effected. Similarly, a plate having the same number of colour filters of the kind shown in Fig. 4 may be inserted in the light path to allow of simultaneous control of the colour of the elementary beams.
GB33765/47A 1946-12-18 1947-12-22 A regulable optical illumination system Expired GB663840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH663840X 1946-12-18

Publications (1)

Publication Number Publication Date
GB663840A true GB663840A (en) 1951-12-27

Family

ID=4527124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33765/47A Expired GB663840A (en) 1946-12-18 1947-12-22 A regulable optical illumination system

Country Status (1)

Country Link
GB (1) GB663840A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066901A2 (en) * 1981-06-05 1982-12-15 Volpi Ag Illuminating device
FR2585448A1 (en) * 1985-07-24 1987-01-30 Cibie Projecteurs LAMPS, MULTIFUNCTION OF TINT OR UNIFORM APPEARANCE IN A DATE, PARTICULARLY FOR MOTOR VEHICLES
FR2752914A1 (en) * 1996-09-05 1998-03-06 Valeo Vision Vehicle warning lights with additive synthesis
EP0965788A3 (en) * 1998-06-15 2001-04-11 Brian Edward Richardson Color filter module for projected light
EP0965789A3 (en) * 1998-06-15 2001-04-11 Brian Edward Richardson Beam divergence and shape controlling module for projected light
WO2011027254A1 (en) * 2009-09-07 2011-03-10 Koninklijke Philips Electronics N.V. Picture projector
US8152352B2 (en) 2009-01-02 2012-04-10 Rambus International Ltd. Optic system for light guide with controlled output
US8152318B2 (en) 2009-06-11 2012-04-10 Rambus International Ltd. Optical system for a light emitting diode with collection, conduction, phosphor directing, and output means
US8272770B2 (en) 2009-01-02 2012-09-25 Rambus International Ltd. TIR switched flat panel display
US8297818B2 (en) 2009-06-11 2012-10-30 Rambus International Ltd. Optical system with reflectors and light pipes
US8733982B2 (en) 2009-11-18 2014-05-27 Rambus Delaware Llc Internal collecting reflector optics for LEDs
US8827531B2 (en) 2011-05-13 2014-09-09 Rambus Delaware Llc Lighting assembly
US9291340B2 (en) 2013-10-23 2016-03-22 Rambus Delaware Llc Lighting assembly having n-fold rotational symmetry

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066901A2 (en) * 1981-06-05 1982-12-15 Volpi Ag Illuminating device
EP0066901A3 (en) * 1981-06-05 1983-09-21 Volpi Ag Illuminating device
FR2585448A1 (en) * 1985-07-24 1987-01-30 Cibie Projecteurs LAMPS, MULTIFUNCTION OF TINT OR UNIFORM APPEARANCE IN A DATE, PARTICULARLY FOR MOTOR VEHICLES
EP0211742A1 (en) * 1985-07-24 1987-02-25 Valeo Vision Signal lights, particularly for motor vehicles
FR2752914A1 (en) * 1996-09-05 1998-03-06 Valeo Vision Vehicle warning lights with additive synthesis
EP0965788A3 (en) * 1998-06-15 2001-04-11 Brian Edward Richardson Color filter module for projected light
EP0965789A3 (en) * 1998-06-15 2001-04-11 Brian Edward Richardson Beam divergence and shape controlling module for projected light
US8152352B2 (en) 2009-01-02 2012-04-10 Rambus International Ltd. Optic system for light guide with controlled output
US8272770B2 (en) 2009-01-02 2012-09-25 Rambus International Ltd. TIR switched flat panel display
US8152318B2 (en) 2009-06-11 2012-04-10 Rambus International Ltd. Optical system for a light emitting diode with collection, conduction, phosphor directing, and output means
US8292445B2 (en) 2009-06-11 2012-10-23 Rambus Inc. Optical system for a light emitting diode with collection, conduction, phosphor directing, and output means
US8297818B2 (en) 2009-06-11 2012-10-30 Rambus International Ltd. Optical system with reflectors and light pipes
WO2011027254A1 (en) * 2009-09-07 2011-03-10 Koninklijke Philips Electronics N.V. Picture projector
US8733982B2 (en) 2009-11-18 2014-05-27 Rambus Delaware Llc Internal collecting reflector optics for LEDs
US8827531B2 (en) 2011-05-13 2014-09-09 Rambus Delaware Llc Lighting assembly
US9291340B2 (en) 2013-10-23 2016-03-22 Rambus Delaware Llc Lighting assembly having n-fold rotational symmetry

Similar Documents

Publication Publication Date Title
GB663840A (en) A regulable optical illumination system
US2673923A (en) Means for producing colored light beams
KR900008299A (en) Illumination method and apparatus and projection exposure method and apparatus
KR890017486A (en) Lighting system
ES8203523A1 (en) Illuminating device for a large screen.
DE59006260D1 (en) OPTICAL POSITIONING SYSTEM FOR AT LEAST ONE PICTURE POINT.
JPS56168621A (en) Projection system
US2416918A (en) Color television system
GB2018547A (en) A colour test card facility with adjustable colour temperature for a television camera
GB1450544A (en) Photographic lighting method and apparatus
GB1142524A (en) Color source
GB1262095A (en) Controlled degradation of a visual scene
GB1207515A (en) Improvements relating to the optical alignment of patterns
GB675357A (en) Multiple beam optical system
JPS6442821A (en) Lighting device
GB1240468A (en) Improvements relating to television cameras
GB646642A (en) Improvements in colour lighting apparatus
GB621561A (en) Colour television system
GB654175A (en) An improved optical illumination system
GB524579A (en) Improvements relating to the optical projection of cinematograph films
SU523272A1 (en) Dual beam interferometer
GB968822A (en) Improvements in or relating to means for variable lighting effects
US2017575A (en) Light source for projectors
GB727363A (en) Improvements in or relating to illuminating devices for optical projection apparatus
SU84055A1 (en) Color Difference Instrument