CN103899969A - Shadowless table lamp with sitting posture monitoring function - Google Patents
Shadowless table lamp with sitting posture monitoring function Download PDFInfo
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- CN103899969A CN103899969A CN201210572094.0A CN201210572094A CN103899969A CN 103899969 A CN103899969 A CN 103899969A CN 201210572094 A CN201210572094 A CN 201210572094A CN 103899969 A CN103899969 A CN 103899969A
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- 230000004379 myopia Effects 0.000 description 2
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Abstract
The invention relates to a shadowless table lamp with a sitting posture monitoring function. The shadowless table lamp comprises a U-shaped lamp body and a supporting body, wherein a left lamp cap and a right lamp cap are arranged on the U-shaped lamp body, and an LED light source is arranged in each lamp cap; the two lamp caps are arranged above the two sides of a writing area, and the rear ends of the lamp caps (the ends away from a writer) are connected with the two ends of a common connecting body respectively to form the U-shaped lamp body seeing from an overlook viewing angle. The two sides or the rear of the U-shaped lamp body is provided with an environment light filling lamp. An infrared ray emitting diode and an infrared ray receiving diode are arranged at the opposite positions, close to the front ends, of the two lamp caps, the infrared ray emitting diode and the infrared ray receiving diode correspond in position to form an invisible infrared monitoring light beam, when the head of the user is lower than a specified height, the infrared monitoring light beam is cut off, and an infrared ray monitoring alarm circuit will make a sound for reminding. A lamp rod and a writing board serving as a base are used as the supporting body of the U-shaped lamp body, the surface of the writing board does not reflect light, and the writing board tilts forward slightly to facilitate writing.
Description
Technical field
The present invention relates to a kind of desk lamp without shadow with sitting posture monitoring function, belong to and write field of illuminating lamps.
Background technology
Myopia is puzzlement student's large problem, and student's study and work life is had to no small impact.In the origin cause of formation of myopia, writing style is incorrect and to use up not science be topmost reason.Such as the pupil of new admission, often to write on all fours, its reason is, and hand shuts out the light and causes hand shadow, writes in order to see falling that word can't help clearly, and such action is relatively comfortable again in addition, forms in the course of time the custom of writing on all fours.Present textbook mostly is halftone paper printing, and surface-brightening has strong reflection effect to light, can cause visual fatigue and blurring of vision, is also to deepen near-sighted reason.Existing desk lamp pattern is various, height and put also lack of standardizationly when use, and these have rationally and instruct in all needing to use.The problem that above-mentioned pupil likes writing is on all fours to remind and solve by the head of a family now, but the head of a family can not always remind at one's side, should form by child the good custom of conscious correction.The sharp contrast of writing in addition district and periphery illumination is also the reason that causes visual fatigue, often write district's brightness and reach, but due to indoor other light of not opening, it is dark causing periphery, is so also unscientific using up.On market, also there is no special desk lamp without shadow product now, but there is the desk lamp of infrared observation sitting posture, realize by the infrared induction sensor on lamppost or on lampshade, together with infrared light emitting diode is done with infrared receiver diode, infrared light emitting diode transmitting infrared ray, run into human body back reflection, the prompting sitting correction set of sounding after infrared receiver diode perceives.But such mode is accurate not, can not remove accurately and effectively to monitor student's sitting posture.
Summary of the invention
The object of patent of the present invention is to provide one and prevents that hand shadow and page dazzle from producing, again can monitoring user sitting posture and carry out the desk lamp of light filling function to writing the periphery of environment.
The present invention is achieved by the following technical solutions: the present invention includes U-shaped lamp body and supporter two parts, be provided with two lamp holders in left and right on U-shaped lamp body, in each lamp holder, have LED light source, LED light source can be spot light form or area source form.If area source form, LED light-emitting component coordinates the abrasive segments or the LGP accessory that produce area source to use.Two lamp holders are separately positioned on the top, both sides of writing region, and the two ends of the rear end of the lamp holder connector common with are connected respectively, overlook the lamp body of seeing a U font of formation on visual angle.Described connector can be the housing of hollow, and inside can be provided with power circuit and control circuit; Also can be the form of connecting rod, connector major function be by as a whole two lamp holders connections, overlooks the shape of seeing connector, can be straight line, can be also rearward bending arc, with lamp holder composition U font lamp body.There is environment light-supplementing lamp at both sides or the rear portion of U font lamp body, can adopt LED light source, illuminate and write district's surrounding enviroment, reduce the comparison of light and shade in the visual field, alleviate visual fatigue.Be provided with infrared light emitting diode and infrared receiver diode at two relative close front end places of lamp holder, both positions are mutually corresponding, form invisible infrared monitoring light beam together, when user's head is lower than the standard distance of regulation, blocking-up infrared observation light beam, infrared observation alarm circuit can sense signal conversion, sounds the alarm and reminds user to raise one's head, sitting correction set.The supporter of above-mentioned U font lamp body can be that a traditional lamp stand adds a lamp socket mode, can be also that one to four lamp stand adds a board that serves as base, and its surface is not reflective, and angle is micro-to lean forward, and is convenient to write.
Adopt the beneficial effect that brings of the present invention to be, illumination is more scientific more reasonable, and no-reflection and dazzle, without hand shadow; Write environment light and shade contrast little, alleviate visual fatigue; Have the monitoring of infrared sitting posture, the monitoring user distance of writing, helps it to form good read-write custom.
Be described further below in conjunction with accompanying drawing:
Fig. 1 is the stereogram of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 2 is the top view of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 3 is infrared emission tube and the infrared receiver tube generalized section of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 4 is the infrared observation alarm circuit figure of the desk lamp without shadow of band sitting posture monitoring function of the present invention
Fig. 5 is the front view of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 6 is the LED area source abrasive material scheme schematic diagram of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 7 is the LED area source LGP scheme schematic diagram of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 8 is the rearview of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Fig. 9 is the lighting source circuit diagram of the desk lamp without shadow of band sitting posture monitoring function of the present invention;
Figure 10 is the 2nd embodiment of the lamp body structure of the desk lamp without shadow of band sitting posture monitoring function of the present invention
Figure 11 is the 3rd embodiment of the lamp body structure of the desk lamp without shadow of band sitting posture monitoring function of the present invention
The label that in figure, each component names is corresponding is as follows:
The specific embodiment
In Fig. 1, main body of the present invention is made up of U-shaped lamp body and supporter two parts.The openend of U-shaped lamp body, be namely defined as towards one end of user front to, U-shaped lamp body is made up of left lamp holder 1, right lamp holder 2 and connector 3, the rear end of two lamp holders links together with the two ends of connector 3 respectively, forms U font lamp body.Connector 3 is housings of hollow, and internal placement has control circuit, power circuit etc., and the Main Function of connector 3 is to connect two lamp holders to become as a whole.Supporter is made up of lamp stand 4 and lamp socket 5, and lamp stand quantity can be from 1 to 4, and lamp socket 5 is boards, leans forward slightly in its surface, and angle is at 2 degree in 10 degree, and surface frosted is processed no-reflection.U-shaped lamp body is positioned at directly over lamp socket 5, the light of two lamp holders is respectively from upper left side and upper right side both direction light projector to lamp socket 5, formation crossings on different level illumination, the principle of similar shadowless lamp in hospital, has eliminated hand shadow, makes to look thing clear, can be not tired because not seeing word, and owing to being left and right both direction light projector, that has avoided page direct reflectively enters the dazzle that eyes cause, and makes illumination more reasonable.In Fig. 1, can see that in addition one of them lamp holder is provided with infrared emitting head 6 near the inner side of front end.
In Fig. 2, to overlook direction and see, left lamp holder 1, right lamp holder 2 and connector 3 form U font lamp body.The close front end place of what the infrared light emitting diode of infrared observation alarm was relative with infrared receiver diode be separately positioned on two lamp holders, namely U-shaped lamp body is near the position of openend, both positions mutually corresponding, axis is consistent.After energising, infrared emission tube 6 sends infrared ray, the infrared receiver tube 7 of another lamp holder receives, form the horizontal invisible infrared observation light beam of one level, this road beam distance is write the specification writing distance that region is 30 centimeters of left and right, write district when people's head distance and excessively closely stopped infrared observation light beam, infrared receiver tube 7 can sense, infrared observation alarm circuit can trigger sound and light alarm and remind sitting correction set to keep at a distance.It should be noted that, infrared emission tube 6 and infrared receiver tube 7 can exchange the position of two diodes, i.e. left lamp holder 1 installation infrared line receiving tube 7, right lamp holder 2 installation infrared line transmitting tubes 6.The form that this infrared emission tube 6 and infrared receiver head tube are discrete and the infrared monitoring sensor of existing principle of reflection are compared, and use more accurately strict.Infrared emission tube 6 is that infrared light emitting diode VD1 and sleeve pipe 8 and infrared filter 9 form, sleeve pipe 8 allows the transmitting of light pool light beam to strengthen transmitting light intensity, infrared light emitting diode VD1 is in pore one end of sleeve pipe 8 as shown in Figure 3, other end tapping has an infrared filter 9, can prevent dust.Too, by infrared receiver diode VD2 and sleeve pipe 8, and infrared filter 9 forms the structure of infrared receiver tube 7, and infrared filter 9 can reduce the interference that extraneous veiling glare receives signal.
In Fig. 4, infrared observation alarm circuit is by ac buck rectification circuit, infrared transmitting circuit, infrared electro change-over circuit, the compositions such as the sound light alarming circuit of Control.220 volts of alternating voltages are exported 12 volts of alternating voltages after transformer pressure-reducing, and through D1～D4 rectification, capacitor C 1 filtering, then by three-terminal voltage-stabilizing circuit U A78H12A voltage stabilizing, output 12 volt DC voltages offer subsequent conditioning circuit.
C2 and C3 are filter capacitor, and light emitting diode D5 makes power supply indicator, and R1 step-down current limliting, normally works D5.
Infrared emitting diode VD1 and PR1 composition infraluminescence circuit, adjustable resistance RP1, as step-down current limliting use, by regulating the size of RP1, is limited within 90 milliamperes the operating current of infrarede emitting diode VD1, burns in order to avoid electric current is excessive.VD2 is infrared receiver diode, namely photodiode, with R2 composition optical-electrical converter, between infrared light emitting diode VD1 and infrared receiver diode VD2, form infrared ray light path together, in the time that light path is not blocked, the infrared signal of VD1 is become the signal of telecommunication by VD2, VD2 is Low ESR, and A point voltage is less than or equal to 0.35 volt, and VT1 is cut-off state, B point high level, IC is in reset mode.When infrared ray light path is blocked, VD2 is high impedance status, A point potential rise, and VT1 saturation conduction, B point current potential is less than or equal to 0.4 volt, IC1 set, the 3 pin high level of IC1.
IC1 adopts time-base integrated circuit 555, and at its voltage of trigger end 2 pin, lower than 0.33 volt, 555 in SM set mode, and on this, saltus step pulse makes VT2 saturation conduction, relay K adhesive, and normally closed electric shock K1 opens, LED lighting; Normally opened contact K3 closure, buzzer sends alarm sound, thereby realizes infrared acquisition sound and light alarm.D6 is fly-wheel diode, and effect is to suppress the counter electromotive force that relay coil produces, protective transistor.
In Fig. 5, on front view of the present invention, can see, LED light source 10 below two lamp holders, can be spot light respectively, can be also area source, and irradiating angle is towards lamp socket 5.The irradiations from top, left and right is oblique of two LED light sources 10, form multi-faceted photoenvironment, have eliminated the generation of hand shadow, allow to look thing more clear.Due to side lighting, also avoid the reflective people's of shining directly into of page eyes, avoid page dazzle.
It shown in Fig. 6, is the scheme with abrasive material generation area source of LED light source 10, LED circuit plate 11 is the circuit boards with LED light emitting diode matrix, LED circuit plate 11 is radiated on frosted lampshade 12, frosted lampshade 12 can be plastics, such as transparent materials such as PC, surface is by coating or do matte surface processing, when the LED light irradiation on LED circuit plate 11 just forms evenly soft area source in the above, avoids the dazzling sensation of direct view led lamp pearl like this.
In Fig. 7, the scheme with LGP generation area source of LED light source 10, by LED circuit plate 11 (single array), light is projected to the side of LGP 13, LGP is distributed to surperficial forming surface light source uniformly the light entering, LGP 13 is the technology that are widely used in liquid crystal panel and advertising lamp box, so do not repeat its principle.
In Fig. 8, at the rear portion of U-shaped lamp body, the namely rear portion of connector 3, be provided with environment light-supplementing lamp 14, in figure, be exemplified as rear portion and be provided with two groups, environment light-supplementing lamp 14 is LED array compositions, and the environment to desk lamp rear and the region of periphery are illuminated, reduce the comparison of light and shade of writing region and environmental area, relieving eye strain.The rear portion of U-shaped lamp body is also provided with supply socket 15, switch 16.
In Fig. 9, it is the circuit diagram of lighting source in whole desk lamp.220v alternating current becomes low-voltage DC to the power supply of LED lamp through K switch and LED driver 17 successively, and LED driver is existing mature technology, has finished product directly to select.LED circuit plate 11 in LED1 and the LED2 lamp group corresponding left lamp holder 1 of difference and right lamp holder 2 in figure.The LED array that the corresponding environment light-supplementing lamp of LED3 and LED4 lamp group is 14 li.
In Figure 10, be the structure embodiment 2 of whole desk lamp, left lamp holder 1 is connected with connector 3 by rotating shaft 18 respectively with right lamp holder 2, and in transportation, two lamp holders can fold, and is convenient to transportation, reduces packing case volume.
In Figure 11, be the structure embodiment 3 of whole desk lamp, connector can make the form of connecting rod rack, the U-shaped support 19 of for example metal tube bending, and the two ends of U-shaped support 19 are connected with two lamp holders by rotating shaft 18, and the quantity of U-shaped support can be one to three.
Claims (8)
1. the desk lamp without shadow with sitting posture monitoring function, formed by left lamp holder, right lamp holder, connector, lamp stand, lamp socket, LED light source and infrared observation alarm circuit, it is characterized in that: in left lamp holder, right lamp holder, have respectively LED light source, the rear end of left lamp holder and right lamp holder connects and composes U-shaped lamp body with the two ends of connector respectively, and the infrared light emitting diode of infrared observation alarm and infrared receiver diode are relative is respectively arranged on two lamp holders near front end place.
2. the desk lamp without shadow with sitting posture monitoring function according to claim 1, is characterized in that described connector is the housing of inner hollow.
3. according to claim 1 or the desk lamp without shadow with sitting posture monitoring function claimed in claim 2, it is characterized in that the rear end of left lamp holder, right lamp holder and the two ends of connector are to be fixedly connected with.
4. the desk lamp without shadow with sitting posture monitoring function according to claim 1, the infrared light emitting diode of the infrared observation alarm described in it is characterized in that and sleeve pipe and infrared filter coaxially form infrared emission tube, and the infrared receiver diode of infrared observation alarm and sleeve pipe and infrared filter coaxially form infrared receiver tube.
5. according to claim 1 or the desk lamp without shadow with sitting posture monitoring function claimed in claim 2, it is characterized in that there is environment light-supplementing lamp at the rear portion of connector 3, is 1 to 4 group of LED array light source.
6. the desk lamp without shadow with sitting posture monitoring function according to claim 1, is characterized in that the rear end of left lamp holder and right lamp holder is flexibly connected with connector by rotating shaft.
7. the desk lamp without shadow with sitting posture monitoring function according to claim 1, is characterized in that described connector is the U-shaped support of 1 to 3 metal tube bending.
8. the desk lamp without shadow with sitting posture monitoring function according to claim 1, it is characterized in that described lamp socket be 2 degree that slightly lean forward of a surface frosted no-reflection to 10 degree the board with interior angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572094.0A CN103899969A (en) | 2012-12-26 | 2012-12-26 | Shadowless table lamp with sitting posture monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572094.0A CN103899969A (en) | 2012-12-26 | 2012-12-26 | Shadowless table lamp with sitting posture monitoring function |
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| CN103899969A true CN103899969A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572094.0A Pending CN103899969A (en) | 2012-12-26 | 2012-12-26 | Shadowless table lamp with sitting posture monitoring function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832824A (en) * | 2015-05-07 | 2015-08-12 | 大连工业大学 | Illuminating lamp capable of increasing light receiving efficiency of human eye vision |
| CN107289365A (en) * | 2017-08-06 | 2017-10-24 | 葛滨 | A kind of desk lamp |
| CN108882488A (en) * | 2018-09-12 | 2018-11-23 | 青岛亿联客信息技术有限公司 | Read and write automatic light control system |
| CN109812744A (en) * | 2017-11-19 | 2019-05-28 | 重庆市江津区江成老年公寓有限责任公司 | A kind of the elderly gets up in the night to urinate auxiliary device |
| CN110379804A (en) * | 2019-06-10 | 2019-10-25 | 天台天宇光电股份有限公司 | A kind of bilateral LED light of built-in anti-breakdown protection |
-
2012
- 2012-12-26 CN CN201210572094.0A patent/CN103899969A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832824A (en) * | 2015-05-07 | 2015-08-12 | 大连工业大学 | Illuminating lamp capable of increasing light receiving efficiency of human eye vision |
| CN107289365A (en) * | 2017-08-06 | 2017-10-24 | 葛滨 | A kind of desk lamp |
| CN109812744A (en) * | 2017-11-19 | 2019-05-28 | 重庆市江津区江成老年公寓有限责任公司 | A kind of the elderly gets up in the night to urinate auxiliary device |
| CN108882488A (en) * | 2018-09-12 | 2018-11-23 | 青岛亿联客信息技术有限公司 | Read and write automatic light control system |
| CN108882488B (en) * | 2018-09-12 | 2020-09-01 | 青岛亿联客信息技术有限公司 | Automatic light-adjusting system for reading and writing |
| CN110379804A (en) * | 2019-06-10 | 2019-10-25 | 天台天宇光电股份有限公司 | A kind of bilateral LED light of built-in anti-breakdown protection |
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Application publication date: 20140702 |