CN106764652A - A kind of dual reflective LED blackboard lightses of application classroom illumination - Google Patents

A kind of dual reflective LED blackboard lightses of application classroom illumination Download PDF

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Publication number
CN106764652A
CN106764652A CN201611005783.8A CN201611005783A CN106764652A CN 106764652 A CN106764652 A CN 106764652A CN 201611005783 A CN201611005783 A CN 201611005783A CN 106764652 A CN106764652 A CN 106764652A
Authority
CN
China
Prior art keywords
light
led
blackboard
reflecting cup
rectangular
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.)
Pending
Application number
CN201611005783.8A
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Chinese (zh)
Inventor
刘宁宁
张宇宁
夏昊天
刘奡
何乃龙
刘永金
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.)
Nanjing Donghui Photoelectric Co Ltd
Original Assignee
Nanjing Donghui Photoelectric Co 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 Nanjing Donghui Photoelectric Co Ltd filed Critical Nanjing Donghui Photoelectric Co Ltd
Priority to CN201611005783.8A priority Critical patent/CN106764652A/en
Publication of CN106764652A publication Critical patent/CN106764652A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/03Lighting devices intended for fixed installation of surface-mounted type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/22Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The invention discloses a kind of dual reflective LED blackboard lightses of application classroom illumination, including LED blackboard lightses and curved reflector, LED blackboard lightses include LED light bar and rectangular light reflecting cup, rectangular light reflecting cup is rectangular horn opening shape, and equidistantly arrangement is evenly arranged in rectangular light reflecting cup bottom position to multiple LED light bars;LED light bar emergent light is reflected through rectangular light reflecting cup, and original light is compressed into shaping, and beam angle is compressed in a less scope, it is ensured that light utilization, while also for area illumination does secondary light-distribution;LED light bar part emergent light and rectangular light reflecting cup reflected light are shone on curved reflector, the emergent light of secondary light-distribution is carried out three times with light shaping by curved reflector, obtain upper and lower asymmetric light type pattern, lower section illuminance is bigger than top illuminance, and the not enough problem of blackboard the latter half illuminance is made up with this;Three times luminous intensity distribution is incident upon blackboard region, ultimately forms rectangle, the illumination region of uniform-illumination.

Description

A kind of dual reflective LED blackboard lightses of application classroom illumination
Technical field
The present invention relates to lighting field, more particularly to a kind of application classroom illumination dual reflective LED blackboard lightses.
Background technology
Extensively, many traditional illuminators are gradually substituted LED application fields by LED lamp, and LED has the low in energy consumption, longevity Life is long and the advantages of stability high, and LED lamp also has adjustable color, luminous efficiency high etc. a little;Meanwhile, LED is easy to do To miniaturization, so with illuminator, can freely design;And with hot line and ultraviolet is practically free of, freely adjust The features such as light, moment lighting.
Fluorescent tube is used current blackboard lights more, also having very small part to be replaced by LED lamp tube, but overall structure is still adopted Retroreflective form is lifted with traditional simple vertical, a portion blackboard lights can adjust angle, but reflecting cup structure is simple, nothing Method reaches the requirement of blackboard lighting criteria.
LED is more and more extensive using all kinds of illuminators, and flexible layout, convenient design.And the luminous intensity distribution and photograph of blackboard lights It is more special that degree is required, and has certain beam angle, therefore in order to obtain preferable light distribution, meets classroom blackboard photograph Bright specific demand, devises a kind of dual reflective LED blackboard lamp optical systems.By multiple reflections and beam shaping, realize The requirement of blackboard illumination and the uniformity.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of application classroom illumination for proposing Dual reflective LED blackboard lightses.
To achieve these goals, present invention employs following technical scheme:
The dual reflective LED blackboard lightses of a kind of application classroom illumination, by LED light source, reflection module and acrylic protective plate three It is grouped into, the LED light source is LED blackboard lightses, and a length of 1200mm of LED blackboard lightses, rising angle is 35 degree;
The LED blackboard lightses include LED light bar and rectangular light reflecting cup, and the rectangular light reflecting cup is rectangular horn opening shape, institute Stating LED light bar has multiple, and equidistantly arrangement is evenly arranged in rectangular light reflecting cup bottom position to LED light bar;LED light bar emergent light is passed through Rectangular light reflecting cup is reflected, and original light is compressed into shaping, and beam angle is compressed in a less scope, it is ensured that light Utilization rate, while also for area illumination does secondary light-distribution;
The reflection module includes curved reflector, the first plane mirror, the second plane mirror, the opening of rectangular light reflecting cup Front is provided with curved reflector;LED light bar part emergent light and rectangular light reflecting cup reflected light are shone on curved reflector, curved surface The emergent light of secondary light-distribution is carried out three times with light shaping by speculum, obtains upper and lower asymmetric light type pattern, lower section illuminance It is bigger than top illuminance, illuminance not enough problem in blackboard the latter half is made up with this;Three times luminous intensity distribution is incident upon blackboard region, most End form is into rectangle, the more uniform illumination region of illumination.
Preferably, the rectangular light reflecting cup top is provided with the first plane mirror, and rear is provided with the second plane mirror, under Side is provided with acrylic protective plate.
Preferably, the curved reflector is parabolic reflector.
Preferably, the acrylic protective plate is made of the PMMA materials of printing opacity high.
Preferably, the LED light bar is made up of high color rendering index (CRI) LED lamp bead, true reduced color while illumination is met It is color.
Preferably, the rectangular light reflecting cup, curved reflector, the first plane mirror and the second plane mirror are plated with High reflection film layer, improves reflection efficiency.
Preferably, the LED light bar and rectangular light reflecting cup are required to incline and install, and angle of inclination is 35 degree.
Preferably, the blackboard specification being adapted to the present invention is 3600mm*1200mm.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is using LED array as light source output, LED outgoing Light beam reflects through rectangular light reflecting cup, shines on curved reflector, and rectangular light reflecting cup carries out secondary light-distribution shaping to LED beam, Change original emitting light path, for compressing beam angle, so that final outgoing beam can be concentrated in blackboard region.Curved surface is anti- Mirror is penetrated for parabolic mirror, the light beam of secondary reshaping is carried out three shapings by parabolic mirror, blackboard is to place vertically, In order to ensure that blackboard top half and the illumination of the latter half are tried one's best consistent, it is necessary to be projected onto the light beam increase of the latter half, Using parabolic mirror, corresponding circular cone coefficient and suitable radius of curvature are set, and choose suitable caliber size and position Put, most some light focuses on blackboard the latter half at last.The light of scattering is carried out reflection recycling by two pieces of plane mirrors, with This improves light utilization.The light beam matched somebody with somebody after light shaping for three times is finally projected to blackboard through high transmittance acrylic board, realizes The specified illumination and preferable uniformity of illuminance of blackboard.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the dual reflective LED blackboard lights daily uses of application classroom illumination proposed by the present invention;
Fig. 2 is a kind of structural representation of the dual reflective LED blackboard lightses of application classroom illumination proposed by the present invention;
Fig. 3 is a kind of structural representation of the LED blackboard lightses of the dual reflective LED blackboard lightses of application classroom illumination proposed by the present invention Figure;
Fig. 4 is that a kind of structure of the rectangular light reflecting cup of the dual reflective LED blackboard lightses of application classroom illumination proposed by the present invention is shown It is intended to.
In figure:1st, LED blackboard lightses, the 11, first plane mirror, the 12, second plane mirror, 13, curved reflector, 14th, acrylic protective plate, 15, rectangular light reflecting cup, 16, LED light bar, 2, blackboard.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
LED is more and more extensive using all kinds of illuminators, and flexible layout, convenient design.And the luminous intensity distribution and photograph of blackboard lights It is more special that degree is required, and has certain beam angle, therefore in order to obtain preferable light distribution, meets classroom blackboard photograph Bright specific demand, devises a kind of dual reflective LED blackboard lamp optical systems.By multiple reflections and beam shaping, realize The requirement of blackboard illumination and the uniformity.
Reference picture 1-4, the dual reflective LED blackboard lightses of a kind of application classroom illumination, by LED light source, reflection module and Asia The part of gram force protective plate 14 3 constitutes, and the LED light source is LED blackboard lightses 1, a length of 1200mm of LED blackboard lightses 1(Can be according to reality Border situation changes length), rising angle is 35 degree, covers the lower edges region of blackboard 2, and the specification of blackboard 2 is 3600mm* 1200mm。
The LED blackboard lightses 1 include LED light bar 16 and rectangular light reflecting cup 15, and the rectangular light reflecting cup 15 is rectangular horn Opening shape, the LED light bar 16 has multiple, and equidistantly arrangement is evenly arranged in the bottom position of rectangular light reflecting cup 15 to LED light bar 16 Put, it is ensured that blackboard 2 can obtain more uniform light in the horizontal direction(The number of LED light bar 16 is selected according to the actual requirements Amount).The emergent light of LED light bar 16 is reflected through rectangular light reflecting cup 15, and original light is compressed into shaping, and beam angle is compressed in One less scope, it is ensured that light utilization, while also for area illumination does secondary light-distribution.
The reflection module includes curved reflector 13, the first plane mirror 11, the second plane mirror 12, and rectangle is anti- The opening front of light cup 15 is provided with curved reflector 13, and top is provided with the first plane mirror 11, and it is anti-that rear is provided with the second plane Mirror 12 is penetrated, lower section is provided with acrylic protective plate 14, and curved reflector 13 is parabolic reflector, and acrylic protective plate 14 is using high The PMMA materials of printing opacity are made.The part emergent light of LED light bar 16 and the reflected light of rectangular light reflecting cup 15 shine curved reflector 13 On, the emergent light of secondary light-distribution is carried out three times with light shaping by curved reflector 13, obtains upper and lower asymmetric light type pattern, under Square illuminance is bigger than top illuminance, and the not enough problem of the latter half illuminance of blackboard 2 is made up with this.Three luminous intensity distribution outgoing are through saturating After bright acrylic protective plate 14, the region of blackboard 2 is incident upon, ultimately forms rectangle, the more uniform lighting area of illumination Domain.
Preferably, the LED light bar 16 is made up of high color rendering index (CRI) LED lamp bead, is truly reduced while illumination is met Color.
Preferably, the rectangular light reflecting cup 15, curved reflector 13, the first plane mirror 11 and the second plane mirror 12 are plated with high reflection film layer, improve reflection efficiency.
Preferably, acrylic protective plate 14 improves saturating using the PMMA materials of printing opacity high while internal structure is protected Light rate.
Preferably, the LED light bar 16 and rectangular light reflecting cup 15 are required to incline and install, and angle of inclination is 35 degree.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.

Claims (8)

1. dual reflective LED blackboard lightses of a kind of application classroom illumination, it is characterised in that by LED light source, reflection module and Ya Ke Power protective plate(14)Three parts constitute, and the LED light source is LED blackboard lightses(1), LED blackboard lightses(1)A length of 1200mm, light extraction Angle is 35 degree;
The LED blackboard lightses(1)Including LED light bar(16)And rectangular light reflecting cup(15), the rectangular light reflecting cup(15)It is rectangle Loudspeaker opening shape, the LED light bar(16)There are multiple, LED light bar(16)Equidistantly arrangement is evenly arranged in rectangular light reflecting cup (15)Bottom position;LED light bar(16)Emergent light is through rectangular light reflecting cup(15)Reflection, shaping is compressed by original light, Beam angle is compressed in a less scope, it is ensured that light utilization, while also for area illumination does secondary light-distribution;
The reflection module includes curved reflector(13), the first plane mirror(11), the second plane mirror(12), rectangle Reflector(15)Opening front be provided with curved reflector(13);LED light bar(16)Part emergent light and rectangular light reflecting cup(15) Reflected light shines curved reflector(13)On, curved reflector(13)The emergent light of secondary light-distribution is carried out three times with finishing Shape, obtains upper and lower asymmetric light type pattern, and lower section illuminance is bigger than top illuminance, and blackboard is made up with this(2)The latter half The not enough problem of illuminance;Three times luminous intensity distribution is incident upon blackboard(2)Region, ultimately forms rectangle, and illumination is more uniform Illumination region.
2. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that described Rectangular light reflecting cup(15)Top is provided with the first plane mirror(11), rear is provided with the second plane mirror(12), lower section is provided with Acrylic protective plate(14).
3. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that described Curved reflector(13)It is parabolic reflector.
4. a kind of dual reflective LED blackboard lightses of application classroom illumination according to claim 1 and 2, it is characterised in that institute State acrylic protective plate(14)It is made of the PMMA materials of printing opacity high.
5. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that described LED light bar(16)It is made up of high color rendering index (CRI) LED lamp bead, truly color is reduced while illumination is met.
6. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that described Rectangular light reflecting cup(15), curved reflector(13), the first plane mirror(11)With the second plane mirror(12)It is plated with height Reflective coating, improves reflection efficiency.
7. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that described LED light bar(16)And rectangular light reflecting cup(15)It is required to incline and installs, angle of inclination is 35 degree.
8. dual reflective LED blackboard lightses of a kind of application classroom illumination according to claim 1, it is characterised in that with this Invent the blackboard of adaptation(2)Specification is 3600mm*1200mm.
CN201611005783.8A 2016-11-16 2016-11-16 A kind of dual reflective LED blackboard lightses of application classroom illumination Pending CN106764652A (en)

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CN201611005783.8A CN106764652A (en) 2016-11-16 2016-11-16 A kind of dual reflective LED blackboard lightses of application classroom illumination

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Application Number Priority Date Filing Date Title
CN201611005783.8A CN106764652A (en) 2016-11-16 2016-11-16 A kind of dual reflective LED blackboard lightses of application classroom illumination

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917364A (en) * 2017-10-27 2018-04-17 江苏新广联光电股份有限公司 LED clipboard lamps
CN108758563A (en) * 2018-03-13 2018-11-06 深圳市美斯特光电技术有限公司 Light control element and light supply apparatus
CN111734987A (en) * 2020-08-10 2020-10-02 深圳市西朗德光学有限公司 Light control device, design method thereof and lighting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002289028A (en) * 2001-03-28 2002-10-04 Mitsubishi Electric Corp Lighting device
JP2011175903A (en) * 2010-02-25 2011-09-08 Panasonic Electric Works Co Ltd Lighting fixture
CN102777777A (en) * 2011-05-12 2012-11-14 欧司朗股份有限公司 Illuminating device and illuminating system with same
CN103256542A (en) * 2012-02-21 2013-08-21 三营超精密光电(晋城)有限公司 Light module of headlight
CN103727466A (en) * 2014-01-08 2014-04-16 中国计量学院 LED blackboard lamp capable of achieving uniform lighting
CN104990012A (en) * 2015-07-22 2015-10-21 厦门李氏兄弟有限公司 LED blackboard lamp and LED blackboard lamp assembly using LED blackboard lamp
CN204829543U (en) * 2015-08-07 2015-12-02 广州市施亮照明科技有限公司 Lighting lamp
CN105351822A (en) * 2015-11-18 2016-02-24 厦门立达信照明有限公司 LED blackboard lamp
CN205619092U (en) * 2016-03-25 2016-10-05 美光电子照明科技(天津)有限公司 Light -emitting diode (LED) tube lamp

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002289028A (en) * 2001-03-28 2002-10-04 Mitsubishi Electric Corp Lighting device
JP2011175903A (en) * 2010-02-25 2011-09-08 Panasonic Electric Works Co Ltd Lighting fixture
CN102777777A (en) * 2011-05-12 2012-11-14 欧司朗股份有限公司 Illuminating device and illuminating system with same
CN103256542A (en) * 2012-02-21 2013-08-21 三营超精密光电(晋城)有限公司 Light module of headlight
CN103727466A (en) * 2014-01-08 2014-04-16 中国计量学院 LED blackboard lamp capable of achieving uniform lighting
CN104990012A (en) * 2015-07-22 2015-10-21 厦门李氏兄弟有限公司 LED blackboard lamp and LED blackboard lamp assembly using LED blackboard lamp
CN204829543U (en) * 2015-08-07 2015-12-02 广州市施亮照明科技有限公司 Lighting lamp
CN105351822A (en) * 2015-11-18 2016-02-24 厦门立达信照明有限公司 LED blackboard lamp
CN205619092U (en) * 2016-03-25 2016-10-05 美光电子照明科技(天津)有限公司 Light -emitting diode (LED) tube lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917364A (en) * 2017-10-27 2018-04-17 江苏新广联光电股份有限公司 LED clipboard lamps
CN108758563A (en) * 2018-03-13 2018-11-06 深圳市美斯特光电技术有限公司 Light control element and light supply apparatus
CN108758563B (en) * 2018-03-13 2023-09-29 深圳市美斯特光电技术有限公司 Light control element and light source device
CN111734987A (en) * 2020-08-10 2020-10-02 深圳市西朗德光学有限公司 Light control device, design method thereof and lighting system

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Application publication date: 20170531