EP4001765A1 - Appareil à effet de flamme simulé - Google Patents

Appareil à effet de flamme simulé Download PDF

Info

Publication number: EP4001765A1
Authority: EP; European Patent Office
Prior art keywords: image; projector; housing; reflector; capture screen
Prior art date: 2020-11-19
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.): Granted

Application number

EP21020578.7A

Other languages

German (de)

English (en)

Other versions

EP4001765B1 (fr

Inventor

John Leslie Watts

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.)

Flamerite Fires Ltd

Original Assignee

Flamerite Fires 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.)

2020-11-19

Filing date

2021-11-18

Publication date

2022-05-25

2021-11-18 Application filed by Flamerite Fires Ltd filed Critical Flamerite Fires Ltd

2022-05-25 Publication of EP4001765A1 publication Critical patent/EP4001765A1/fr

2023-12-06 Application granted granted Critical

2023-12-06 Publication of EP4001765B1 publication Critical patent/EP4001765B1/fr

Status Active legal-status Critical Current

2041-11-18 Anticipated expiration legal-status Critical

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Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/002—Stoves
- F24C7/004—Stoves simulating flames
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/002—Stoves
- F24C3/006—Stoves simulating flames

Definitions

This invention relates to an apparatus and a method for creating a realistic simulated flame effect, for example in an electric fire.
flame effect picture is provided behind a fuel effect such as real or simulated coal or wood, or a decorative fuel effect such as one comprising bevels or glass spheres.
the present invention seeks to provide an apparatus and method that more efficiently and conveniently facilitates a provision of a realistic simulated flame effect.
apparatus for creating a simulated flame effect and suitable for an electric fire comprises:-
the housing may be referred to as "open fronted", meaning that it has a front which provides a line of sight into the interior of the housing irrespective of whether or not the front of the housing inhibits physical access to the interior of the housing.
the open fronted housing may comprise a front panel of a transparent or semi-transparent material.
the housing may comprise a movable, e.g. tiltable, front panel.
the top wall of the housing may be defined wholly by the capture screen or the housing may comprise a top wall that defines structure for support of a capture screen.
the reflector may be transparent, semi transparent or coated with a film so as to enhance the reflection whereby, in addition to reflecting an image received from the top wall capture screen, it allows an image at a rear of the reflector also to be viewed in the direction of said line of sight.
the reflector may comprise a region which is transparent or semi transparent and a region which is opaque, thereby to be partly transparent.
the reflector may comprise a transparent region and a semi transparent region.
the reflector preferably but not necessarily is angled relative to the top wall capture screen at an angle of between 35 degrees and 55 degrees, for example at an angle of 45 degrees.
the top wall capture screen preferably lies in a plane substantially parallel with the direction of said line of sight but the invention is not limited to that and the capture screen may lie in a plane angled relative to the direction of said line of sight.
the image projector may project a divergent image such that the area of image received by the top wall capture screen is greater than the area of the image at the projector. In consequence of that divergence, and with a substantially flat top wall capture screen, the area of the image on the capture screen, and thus received by the reflector, may be the same or greater than if the capture screen received a non-divergent image from the image projector.
the projector may comprise at least one media player means and an electronic image display device responsive to an input signal from the media player means.
the media player means may be operable to provide the electronic display device with at least one moving flame image.
the projector may comprise at least one media storage means that stores a sequence of frames of moving flame images.
the projector may be operable to display in a continuous loop manner a plurality of moving flame images.
the projector may project the image of a fuel element such as that of a piece of coal or a wooden log.
the fuel element may be an artificial fuel element
the electronic image display device may be in the form of a TFT (thin film transistor) screen.
the conventional backlighting means of a TFT screen may be omitted and instead the projector may comprise a separate light source, such as an LED light source.
An illumination control means such as a dimmer control may be provided for varying the level of light emitted by the projector and the use of an RGB controller may change the colour of light emitted by the projector.
the image from the TFT screen may be transmitted through a lens or adjustable lenses whereby it is enlarged over a distance and captured on the screen at the top wall surface.
a secondary lens may be present in the projector to provide a keystone effect, therefore allowing the projector and capture screen to be set at different angles to each other.
the image projector is provided at a forwards position such that the image that it projects is transmitted substantially wholly in front of the reflector, across said line of sight, and not through the reflector.
the projector may be located closer to the base of the housing than the top wall capture screen.
the projector may be located close to or, for example, substantially adjacent a lower edge region of the reflector.
the projector of the first configuration may be located behind a screen such that at least a part of the projector is obscured and not visible in the direction of the said line of sight.
the projector may be incorporated within a fuel element such as a piece of coal or wooden log.
the image projector may be located behind the capture screen whereby an image such as a flame image is back-projected onto the capture screen and then reflected forwards, in the direction of said line of sight, by the reflector.
At least one projector may be provided in the first configuration in combination with at least one projector positioned in the second configuration.
a plurality of projectors may be provided. Each projector may play different media or the same media set at different time intervals during the loop to create a linear flame picture, for example across the width of an electric fire.
a controller may be provided to separately control each or a group of projectors.
the controller may be operable to change the colours in addition to modulating the level of illumination in each projector.
a media player means may be of a type that enables the media to be split to allow multiple projectors to receive the same or different images.
a TFT screen may have multiple images split on the screen in areas where multiple projectors can be used to create a multiple areas of burn.
the front of the housing may be provided with a transparent or translucent front panel.
a front panel may be inclined relative to a plane which is perpendicular relative to the direction of the said line of sight, for example to enhance an infinity flame effect.
the front panel may be arranged to allow flow of air into and/or out of the housing interior.
the front panel may be moveable whereby it may reside either in said inclined position or in another position at which it inhibits air flow into and/or out of the housing interior.
the front panel may be moveable from an inclined position to one in which it is in a plane substantially perpendicular to said line of sight into said interior of the housing.
an image and/or at least one fuel element may be provided at the rear of the reflector thereby to be visible in the direction of said line of sight in addition to the image reflected by the reflector from the top wall capture screen.
a stationary or moving image may be projected onto a fuel element or a rear capture screen of the housing.
An image display device such as a TFT screen may be provided at the rear of the reflector to display an image (such as a moving flame effect image or image of fuel elements) which can be viewed, through the reflector, in the direction of said line of sight.
an image such as a moving flame effect image or image of fuel elements
the front face of the reflector may be employed also to receive an auxiliary image directly from an auxiliary projector, such as an auxiliary projector provided alongside or in proximity to the top wall capture screen. Additionally or alternatively an auxiliary projector may be employed to directly illuminate and/or provide a moving image on a fuel element positioned in front of the front face of the reflector.
the housing of the simulated flame effect apparatus of the invention may serve at least in part as the housing of a gas or electric fire that comprises a source of heat.
the projector may project a divergent image onto the top wall capture screen or a rear wall capture screen and at least one said top and rear wall capture screens may be tilted or angled, thereby to reflect optimally an image towards the front face of the reflector or towards the front opening though the reflector.
An electric fire housing 10 in accordance with the present invention comprises a housing top 11, a base 12 and a rear wall 13 that define a housing interior 20.
the housing additionally comprises a pair of side walls 19, one of which is shown in Figure 1 , and a heater 21.
the housing 10 additionally comprises a front panel 18 of clear glass whereby the housing is open fronted to provide a line of sight into the interior 20 of the housing along the direction of the arrow X.
the top wall 11 Within the housing the top wall 11 is provided with a capture screen 15 that faces in a direction towards the base 12. Between the top wall 11 and base 12 there is provided a reflector 14 of transparent or semi-transparent material positioned at an angle of approximately 45° relative to the direction of the arrow X.
the reflector 14 comprises a front face 17 that reflects images falling thereon, and the reflector 14 additionally allows sight of the rear wall 13.
an image projector 16 is provided in closer proximity to the base 12 than the top wall 11 of the housing and in use projects a diverging image towards the top wall capture screen 15.
the top wall capture screen 15 then reflects that image onto the front face 17 of the reflector. In consequence of the inclined orientation of the reflector, the image received by the front face 17 is then reflected forwards through the front of the housing.
the projector is located behind a screen 22 such that at least a part of the projector is not visible when viewing the electric fire in the direction of the arrow X.
the projector 16 preferably is of a type as hereinbefore described and which provides moving flame images.
the housing 10 may comprise a second projector 25 provided underneath the reflector 14 to project an image, such as a moving flame effect image or image of fuel elements onto an internal capture screen 26 on the rear wall 13 of the housing.
an image such as a moving flame effect image or image of fuel elements onto an internal capture screen 26 on the rear wall 13 of the housing.
One or more fuel elements may be positioned underneath the reflector and optionally may be illuminated and/or receive a moving image from the projector 25.
a second image projector 30 may be provided at a rear of a translucent type capture screen 15 whereby the front of the screen, facing the reflector 14, receives images from the lower projector 16 and also the second projector 30, both images then appearing on and being reflected forwards by the surface 17 of the inclined reflector 14.
the lower projector 16 may be employed not only to provide an image on the capture screen 15 but also to illuminate one or more fuel elements 31 provided in front of the reflector. Alternatively said fuel elements may be illuminated by an auxiliary projector. An auxiliary projector for illuminating the fuel elements may be positioned alongside the upper capture screen 15 and the heater 21.
Figure 4 the options of Figures 2 and 3 may readily be combined with the configuration of Figure 1 whereby, as viewed in the direction X of the line of sight, there is visible the combination of fuel elements 31 illuminated by the projector 30, a moving flame image generated by the projector 16 and reflected by the front face 17 of the reflector via the capture screen 15 and thirdly, an image on the rear capture screen 26 of the housing 13 as provided by the projector 25 and which image is visible through the semi-transparent reflector 14.
the rear wall 13 is provided with a TFT screen 35 (see Figure 5 ) operable to display an image (such as a moving flame effect image or image of fuel elements) which can be viewed in the direction of the arrow X in combination with an image from the screen 15 as reflected forwards by the reflector 14.
an image such as a moving flame effect image or image of fuel elements
an electric fire 40 is devoid of the aforedescribed lower projector 16.
the capture screen 15 is back illuminated by the projector 30 as earlier described with reference to Figures 3 and 4 .
the projector 30 similarly provides a divergent image. That image is directed to the rear of the translucent capture screen 15. The image on the lower surface of the capture screen, facing the reflector 14 is then transmitted in a non-divergent manner to the reflective surface 17 of the reflector 14 for viewing in the direction of the arrow X.
the projector may be located in an auxiliary housing which is secured to an opening provided in the top 11 of the main housing shown in Figure 1 .
an electric fire that is operable to display a realistic flame effect within a compact configuration.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Transforming Electric Information Into Light Information (AREA)
Projection Apparatus (AREA)

EP21020578.7A 2020-11-19 2021-11-18 Appareil à effet de flamme simulée Active EP4001765B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GBGB2018223.4A GB202018223D0 (en)	2020-11-19	2020-11-19	Simulated flame effect
GBGB2018789.4A GB202018789D0 (en)	2020-11-19	2020-11-30	Simulated flame effect

Publications (2)

Publication Number	Publication Date
EP4001765A1 true EP4001765A1 (fr)	2022-05-25
EP4001765B1 EP4001765B1 (fr)	2023-12-06

Family

ID=74046950

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP21020578.7A Active EP4001765B1 (fr)	2020-11-19	2021-11-18	Appareil à effet de flamme simulée

Country Status (2)

Country	Link
EP (1)	EP4001765B1 (fr)
GB (3)	GB202018223D0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP4145041A1 (fr)	2021-09-07	2023-03-08	Flamerite Fires Limited	Appareil pour créer un effet de flamme simulé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2290865A (en) *	1994-06-22	1996-01-10	Ea Tech Ltd	Electric fire with simulated flame effect
GB2298073A (en) *	1995-02-14	1996-08-21	Bitech Eng	Apparatus for simulating flames
WO2002077533A1 (fr) *	2001-03-23	2002-10-03	Valor Limited	Appareil de simulation d'un feu de combustible solide
GB2467219A (en) *	2009-01-22	2010-07-28	Flamerite Fires Ltd	Flame effect with moving image on one screen projected onto another screen
GB2571677A (en) *	2016-11-25	2019-09-04	Pan Liping	Flame simulation device and electric fireplace
WO2020145819A1 (fr)	2019-01-11	2020-07-16	Kal-Fire Beheer B.V.	Cheminée artificielle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2285535A (en) *	1941-03-04	1942-06-09	Schlett Otto	Fireplace display
CN106704983A (zh) *	2016-11-25	2017-05-24	潘立平	一种火焰模拟装置及电壁炉
BE1025658B1 (nl) *	2017-10-23	2019-05-21	Smecht John De	Elektrische haard

2020
- 2020-11-19 GB GBGB2018223.4A patent/GB202018223D0/en not_active Ceased
- 2020-11-30 GB GBGB2018789.4A patent/GB202018789D0/en not_active Ceased
2021
- 2021-11-18 EP EP21020578.7A patent/EP4001765B1/fr active Active
- 2021-11-18 GB GB2116657.4A patent/GB2601907B/en active Active

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2290865A (en) *	1994-06-22	1996-01-10	Ea Tech Ltd	Electric fire with simulated flame effect
GB2298073A (en) *	1995-02-14	1996-08-21	Bitech Eng	Apparatus for simulating flames
WO2002077533A1 (fr) *	2001-03-23	2002-10-03	Valor Limited	Appareil de simulation d'un feu de combustible solide
GB2467219A (en) *	2009-01-22	2010-07-28	Flamerite Fires Ltd	Flame effect with moving image on one screen projected onto another screen
GB2571677A (en) *	2016-11-25	2019-09-04	Pan Liping	Flame simulation device and electric fireplace
WO2020145819A1 (fr)	2019-01-11	2020-07-16	Kal-Fire Beheer B.V.	Cheminée artificielle

Also Published As

Publication number	Publication date
GB2601907A9 (en)	2022-07-27
GB2601907B (en)	2023-05-03
GB2601907A (en)	2022-06-15
GB202018789D0 (en)	2021-01-13
GB202018223D0 (en)	2021-01-06
EP4001765B1 (fr)	2023-12-06
GB202116657D0 (en)	2022-01-05

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