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EP0189394B1 - Reflecteur lumineux - Google Patents

Reflecteur lumineux Download PDF

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Publication number
EP0189394B1
EP0189394B1 EP83903177A EP83903177A EP0189394B1 EP 0189394 B1 EP0189394 B1 EP 0189394B1 EP 83903177 A EP83903177 A EP 83903177A EP 83903177 A EP83903177 A EP 83903177A EP 0189394 B1 EP0189394 B1 EP 0189394B1
Authority
EP
European Patent Office
Prior art keywords
reflector device
reflector
light source
side face
radiation
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
EP83903177A
Other languages
German (de)
English (en)
Other versions
EP0189394A1 (fr
Inventor
Heinrich Wendel
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT83903177T priority Critical patent/ATE44602T1/de
Publication of EP0189394A1 publication Critical patent/EP0189394A1/fr
Application granted granted Critical
Publication of EP0189394B1 publication Critical patent/EP0189394B1/fr
Expired legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the invention relates to a reflector arrangement for an artificial light source having a spectrum corresponding to natural daylight, preferably a fluorescent tube with at least partially arranged and adjustable reflector elements around the light source.
  • a corresponding reflector arrangement can be found in DE-U-1 803 911.
  • the reflector arrangement is arranged in a street lamp in order to be able to adapt the light intensity distribution of each individual lamp to the respective street conditions by adjusting the individual reflector elements designed as mirrors.
  • the individual mirrors arranged on a ring around the lamp are adjusted once after the lamp has been set up, so that, as mentioned, it can be adjusted to the desired road conditions.
  • GB-A-9 740 shows a reflector arrangement for artificial light which consists of individual reflectors arranged in a ring around a light source which can be pivoted in such a way that the lamp illuminates either a ceiling or a floor of a room.
  • US-A-4 074 124 shows a lighting arrangement with which the lighting conditions of day and night can be simulated.
  • the object of the present invention is to design a reflector arrangement of the type mentioned at the outset in such a way that the biological effects of artificial light sources are improved in such a way that in particular the color temperature of the light coming from the light source corresponds to the course of the day in natural daylight, that is to say the natural circadian rhythm is imitable.
  • each reflector element is a prism-shaped body rotatable about its longitudinal axis and extends along the longitudinal axis of the light source, with at least two of the body side surfaces having a different geometry with different optical properties.
  • the optical property or effectiveness means that the color temperature of the reflected light in particular can be changed in order to correspond to the course of the day of natural light.
  • the adjustment of the reflector elements to one another and the optional alignment of the differently reflecting body side surface in addition to the change in the color temperature, ensure that the illuminance is reproduced in accordance with daylight.
  • the individual reflector elements can be controlled synchronously, if necessary by a preprogrammed regulating mechanism, so that the natural course of daylight is simulated. This prevents the monotonous illuminance and color temperature of the known artificial light sources.
  • the reflector elements can be aligned to the light source in a controlled manner in such a way that even the passage of clouds or the like is simulated, for example by reproducing shorter periods of time with less illuminance.
  • the prism-shaped body is a triangular prism, the three side surfaces of which are provided with different geometries, the optical effectiveness of which is also chosen differently.
  • one of the side surfaces is convex and preferably shows a structured surface.
  • This convex side surface which is red or at least has a red tint, ensures that the red component of the light coming from the artificial light source is increasingly reflected, whereas the UV component of the spectrum is reflected less.
  • This convex red side surface of the triangular prism is intended to ensure that the color temperature is in the range of approximately 35,000 Kelvin.
  • the convex shape also shows that the degree of reflection is lower compared to flat or concave surfaces.
  • the second side surface is flat according to the teaching according to the invention, shows a yellow color in order to reflect the UV radiation particularly well and to increase the color temperature to a total of approximately 4500 ° K.
  • the level design enables the illuminance of the light coming from the artificial light source to be increased by approximately 12%.
  • the third side surface is concave, i.e. it shows the highest degree of reflection and has a silver color - this is created by a special aluminum alloy, in particular a magnesium-aluminum alloy - in order to maximize the brightness on the one hand and the color temperature to approximately 5400 ° on the other K to increase. This also ensures the highest UV reflection from the reflector surfaces.
  • the illuminance can be varied by up to ⁇ 25% through the surface of the reflector element facing the light source, this is also achieved by that the free clear distance between adjacent edges of adjacent reflector elements is changed during the turning process, so that this automatically increases or decreases the reflectance.
  • the direct radiation originating from the artificial light source can additionally be changed with regard to the illuminance and color temperature by arranging foils and / or adjustable reflectors, for example in the form of blinds.
  • the reflector arrangement is preferably intended for a fluorescent tube which can be operated with smoothed direct current, the polarity of the lamp electrodes being reversed during operation.
  • this reduces the power consumption by an estimated 37% in comparison to the known fluorescent tubes that are operated exclusively with alternating current (on the one hand by increasing the lumens / wattage by 20%, on the other hand the power consumption is reduced by 17% compared to known circuits), and on the other hand, the biological effect of corresponding lamps is increased by approx. 300% by excluding the negative effects such as optical flickering, electromagnetic interference fields, etc.
  • a fluorescent tube such as that which is on the market under the name True Lite and which almost completely emits the natural spectrum of sunlight including the UVA and UVB components should be used.
  • an artificial light source in the form of a fluorescent tube 12 is shown, which is surrounded by a reflector arrangement 10.
  • the reflector arrangement 10 is located in a luminaire housing 13, which can be attached to a ceiling or suspended from it, for example.
  • the reflector arrangement 10 consists at least partially in the form of a ring around the fluorescent lamp 12, for example on an imaginary cylinder jacket or another curved surface, so as to modify and reflect the radiation from the fluorescent lamp 12 to the desired extent with regard to the color temperature and brightness to be able to.
  • the reflector elements 14 are - as illustrated in particular in FIG. 3 - formed by prismatic bodies which have bearing pins 16 and 18 at their ends, by means of which they can be mounted in the housing 13.
  • friction wheels or the like of the bearing journals 16 and / or 18. be arranged, which interact with the adjacent reflector elements, so as to enable, for example, a controlled and synchronous rotation of the reflector elements 14 via a gear motor 20 provided on an end face of the housing 13.
  • a gear can be arranged between the individual friction wheels, if necessary, in order to be able to rotate the reflector elements 14 at the same time but in the opposite sense.
  • the control of the individual reflector elements 14 can be preprogrammed so as to ensure alignment with the fluorescent lamp 12 to the desired extent, which ultimately determines the illuminance and the color temperature of the emitted radiation.
  • each reflector element 14 which is preferably a triangular prism with differently shaped side surfaces 22, 24 and 26.
  • the different design of the side surfaces 22, 24, 26 is to ensure, in addition to a different optical effectiveness to be described with respect to the incident radiation, that the radiation originating from the artificial light source in the form of the fluorescent lamp 12 is varied in terms of illuminance and / or color temperature, that the daily routine of natural light is simulated.
  • the surface 22 is concave with respect to the fluorescent lamp 12, is preferably silver-colored by means of a special aluminum alloy such as, for example, a magnesium-aluminum alloy, and has optical properties which ensure that the illuminance increases and a color temperature of that of the fluorescent lamp 12 radiation is set to approximately 5400 ° K.
  • a special aluminum alloy such as, for example, a magnesium-aluminum alloy
  • the side surface 24, on the other hand, is planar, although it likewise reflects the UV radiation well, but to a lesser extent than the concave surface 22, and sets the color temperature of the emitted light to approximately 450.degree.
  • the flat surface is also yellow and semi-glossy. These properties are preferably also achieved by means of a special aluminum alloy.
  • the third surface 26 is convex and increasingly reflects the red component of the light coming from the fluorescent lamp 12, with a reduced UV reflection taking place at the same time compared to the surface 24.
  • the right perceived by the surface 26 due to the convex shape, the reflected light component is the least compared to the reflection components of the other surfaces 22 and 24.
  • the convex surface is red and structured, which also reduces the degree of reflection.
  • the alignment of the individual reflector elements 14 on the fluorescent lamp 12 thus ensures that the emitted light corresponds to the natural light of a course of the day, so that the natural biological-physiological rhythm is ensured.
  • the distance between the edges of each reflector element 14 lying on a circle is approximately 18 mm, the distance between the fluorescent lamp surface and the closest reflector element being approximately 40 to 50 mm.
  • a hexagonal prism can also be used as the reflector element, the diametrically arranged side surfaces being chosen identically in their geometry and optical properties.
  • the direct radiation originating from the fluorescent lamp can be additionally influenced with regard to illuminance and / or color temperature by provided foils or reflectors 28, in order, if necessary, to be able to fine-tune the emitted radiation to that of natural daylight and its course.
  • the reflector arrangement 10 according to the invention is preferably intended for a fluorescent lamp 12 which is supplied with a smoothed direct current.
  • the fluorescent lamp can be supplied by a rectifier circuit connected to the network, as described in European patent application 0062269 by the same applicant.
  • the voltage originating from this rectifier circuit is largely smoothed, so that i.a. the electromagnetic interference fields or optical flickering which occur in the known fluorescent tubes are avoided, as a result of which physiologically negative effects on the people working with light coming from such fluorescent tubes are prevented.
  • the rectifier circuit is followed by a periodically operating polarity reversal relay in order to ensure periodic polarity reversal during operation, thereby avoiding cataphoresis.

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  • 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

Il est proposé un réflecteur lumineux (10) qui permet de modifier les rayonnements émis par une source artificielle (12) de façon à obtenir une température de couleur et une intensité lumineuse correspondant à celle de la lumière naturelle. A cet effet, le réflecteur est constitué de plusieurs corps prismatiques allongés (14) rotatifs autour de leur axe longitudinal. Les faces de chaque prisme présentent une forme différente avec des propriétés optiques différentes.

Claims (12)

1. Dispositif de réflecteurs pour une source de lumière artificielle équivalant la lumière naturelle solaire, de préférence un tube fluorescent muni d'au moins partiellement d'éléments réflecteurs réglables autour de la source de lumière, caractérisé en ce que chaque élément de réflecteur (14) est un corps en forme prismatique et mobile sur son axe longitudinal et qui s'étend suivant l'axe longitudinal de la source de lumière ( 12), deux faces latérales (22, 24, 26) au moins ayant une géométrie différente l'une de l'autre et étant d'efficacité différente l'une de l'autre.
2. Dispositif de réflecteurs selon revendication n° 1, caractérisé en ce que le corps (14) est un prisme triangulaire dont les faces latérales ont une géométrie différente l'une de l'autre et des propriétés optiques différentes.
3. Dispositif de réflecteurs selon revendication n° 2, caractérisé en ce que les faces latérales (22, 24, 26 ) sont en forme concave, plane et convexe.
4. Dispositif de réflecteurs selon revendication n° 3 caractérisé en ce que la face latérale convexe (26) a, de préférence, une surface structurée et qu'elle est rouge ainsi qu'elle augmente la quote-part rouge tout en réduisant la quote-part de l'ultraviolet émanant de la radiation du tube fluorescent.
5. Dispositif de réflecteurs selon revendication n° 3, caractérisé en ce que la face latérale plane (24) est de préférence jaune et sémi-brillante et qu'elle rend plus forte la radiation émanant de la source de lumière (12).
6. Dispositif de réflecteurs selon revendication n° 3, caractérisé en ce que la face latérale concave (22) reflète, comparée avec les autres faces ( 22, 24 ), le plus fortement la quote-part ultraviolette de la radiation émanant de la source de lumière (12).
7. Dispositif de réflecteurs selon revendication n° 6, caractérisé en ce que la face latérale concave (22) est pourvue d'un alliage aluminium- magnésium.
8. Dispositif de réflecteurs selon revendication n° 3, caractérisé en ce que la température de couleur de la radiation émanant de la radiation reflétée de la face latérale convexe (26) de la source de lumière (12) est de préférence d'environ 3500° K, la température des faces planes (24) de préférence d'environ 4500° K et celle des faces latérales concaves (22) de préférence d'environ 5400° K.
9. Dispositif de réflecteurs selon au moins revendication n° 1, caractérisé en ce que la température du dispositif de réflecteurs est réglable par le réglage des éléments de réflecteur (14) concerant la source de lumière (12) et dont la température de couleur est variable en continu entre environ 3500° K et 5400° K l'intensité lumineuse étant réglable de préférence de ± 25 %.
10. Dispositif der réflecteur (14) selon au moins revendication n° 8, caractérisé en ce que les éléments de réflecteur (14) du dispositif de réflecteurs (10) sont réglables l'un vis-à-vis de l'autre et vis-à-vis de la source de lumière (12) et que la luminance et la température de couleur observées par radiation émanant de la source de lumière corrrespondent à la lumière solaire naturelle et à son écoulement.
11. Dispositif de réflecteurs d'au moins selon revendication n° 1, caractérisé en ce que le dispositif de réflecteurs comprend également, pour influencer la radiation directe émanant de la source de lumière (12), de la feuille et/ou des réflecteurs réglables.
12. Dispositif de réflecteurs selon au moins revendication n° 1, pour un tube fluorescent d'un spectre correspondant à la lumière naturelle solaire, le tube fluorescent pouvant être alimenté par courant continu filtré et l'inversion des pâles s'effectuant de façon continue pendant son fonctionnement.
EP83903177A 1983-10-03 1983-10-03 Reflecteur lumineux Expired EP0189394B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83903177T ATE44602T1 (de) 1983-10-03 1983-10-03 Reflektoranordnung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1983/000256 WO1985001566A1 (fr) 1983-10-03 1983-10-03 Reflecteur lumineux

Publications (2)

Publication Number Publication Date
EP0189394A1 EP0189394A1 (fr) 1986-08-06
EP0189394B1 true EP0189394B1 (fr) 1989-07-12

Family

ID=8164916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903177A Expired EP0189394B1 (fr) 1983-10-03 1983-10-03 Reflecteur lumineux

Country Status (4)

Country Link
US (1) US4651259A (fr)
EP (1) EP0189394B1 (fr)
DE (1) DE3380183D1 (fr)
WO (1) WO1985001566A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115187A1 (de) * 1991-05-09 1992-11-26 Heinrich Wendel Verfahren und vorrichtung zur beeinflussung der beleuchtungsstaerke und farbtemperatur von in einem raum ausgestrahlten licht
IT1252026B (it) * 1991-11-29 1995-05-27 Apparecchio di illuminazione in particolare per ambienti privi di luce naturale
WO1996028956A1 (fr) * 1995-03-10 1996-09-19 Philips Electronics N.V. Systeme d'eclairage pour regler la temperature de couleur de la lumiere artificielle sous l'influence du niveau de lumiere du jour
US6607289B2 (en) 1995-10-04 2003-08-19 Leon Lassovsky Quick connect reflector holder
US6206548B1 (en) 1996-08-27 2001-03-27 Leon A. Lassovsky Luminaire module having multiple rotatably adjustable reflectors
US6076943A (en) * 1995-10-04 2000-06-20 Lassovsky; Leon A. Luminaire
FR2802704B1 (fr) * 1999-12-15 2004-02-13 Rudolf Wendel Ampoule electrique a miroir et rampe d'eclairage comportant au moins une telle ampoule
US7481552B2 (en) * 2004-06-18 2009-01-27 Abl Ip Holding Llc Light fixture having a reflector assembly and a lens assembly for same
US10980190B2 (en) * 2017-07-18 2021-04-20 Sat Parkash Gupta Environment-controlled greenhouse with compressor and blower modules

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074124A (en) * 1976-09-22 1978-02-14 Maute Charles J Illumination apparatus for simulating night, dawn and morning, mid-day and afternoon and dusk natural light conditions

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE354026C (de) * 1919-02-05 1922-06-01 Willi Lehmann Elektrische Tischlampe
US1326393A (en) * 1919-02-24 1919-12-30 Fernand E D Humy Electric-light fixture.
FR1122459A (fr) * 1955-03-02 1956-09-07 Dispositif d'éclairage électrique à intensité lumineuse variable
US3239660A (en) * 1961-01-31 1966-03-08 Jr Joseph F Hall Illumination system including a virtual light source
US3201576A (en) * 1964-11-19 1965-08-17 Verilux Inc Fluorescent lighting fixture
US3322946A (en) * 1964-11-27 1967-05-30 George D Cooper Reflector for reflecting color corrected light and heat
DE2203825A1 (de) * 1972-01-27 1973-08-02 Christian Bartenbach Leuchtdecke
US4329734A (en) * 1980-01-28 1982-05-11 General Electric Company Flash lamp array having electrical shield
US4499529A (en) * 1981-05-21 1985-02-12 Figueroa Luisito A Light reflector
US4425603A (en) * 1981-07-14 1984-01-10 Westinghouse Electric Corp. Indirect light-distributing ceiling fixtures with alternate reflector array
US4423469A (en) * 1981-07-21 1983-12-27 Dset Laboratories, Inc. Solar simulator and method
US4389699A (en) * 1981-09-11 1983-06-21 Armstrong World Industries, Inc. Swivel cell light fixture
DE3212284A1 (de) * 1982-04-02 1983-10-13 Heinrich 6238 Hofheim Wendel Leuchtengehaeuse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074124A (en) * 1976-09-22 1978-02-14 Maute Charles J Illumination apparatus for simulating night, dawn and morning, mid-day and afternoon and dusk natural light conditions

Also Published As

Publication number Publication date
WO1985001566A1 (fr) 1985-04-11
US4651259A (en) 1987-03-17
DE3380183D1 (en) 1989-08-17
EP0189394A1 (fr) 1986-08-06

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