CN105737018B - A kind of eye-protecting type flat-plate light source desk lamp - Google Patents
A kind of eye-protecting type flat-plate light source desk lamp Download PDFInfo
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- CN105737018B CN105737018B CN201610114429.2A CN201610114429A CN105737018B CN 105737018 B CN105737018 B CN 105737018B CN 201610114429 A CN201610114429 A CN 201610114429A CN 105737018 B CN105737018 B CN 105737018B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- 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
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Luminescent Compositions (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
This patent discloses a kind of eye-protecting type flat-plate light source desk lamps, movable rod including pedestal, Cap casing and connect base and Cap casing, flat-plate light source that can be unidirection luminous is equipped in the Cap casing, the driving device that flat-plate light source can be driven luminous is equipped in pedestal, the flat-plate light source is electrically connected with driving device.The light source of this patent prepares simple and can effectively reduce electromagnetic radiation, and by being modified to the inert mixed gas and fluorescent powder that are filled in light source, and green light accounting rises, and substantially eliminates blue light and influence of the ultraviolet light to human eye.
Description
Technical field
This patent is related to desk lamp technical field more particularly to a kind of eye-protecting type flat-plate light source desk lamp.
Background technology
There are two types of types for the desk lamp to circulate on the market at present, and one of which is the energy-saving lamp using fluorescent lamp as light source, tradition
Gas fluorescent light it is unstable, light decline is fast, and human eye will be focused often, be easy to cause eye fatigue, deteriorated vision,
And its service life is short, increases use cost, also results in the wasting of resources；Furthermore since fluorescent lamp will be incited somebody to action by reflector
Light is pooled in same direction, and the colour temperature adjustment local environment not in place that be easy to cause is excessively bright, and long-time service can cause eyes tired
Labor even visual impairment, and traditional fluorescent lamp is typically the list branch manufacture in a manner of taking out and make, and since lamp body is extremely careful, is made
Difficulty is big, and cost is also relatively high.Another kind is the desk lamp using LED as light source, the white light of LED light source transmitting mainly by 450 ~
The blue light excitated fluorescent powder of 455nm wavelength, medium wavelength is lower, and excitation ability is stronger, and usual LED light source manufacture wavelength control exists
Within 500nm, usually 450nm ~ 455nm or 455 ~ 460nm belong to the strongest section of radiation injury, manufacturer in order to
Pursue brightness, it will usually reinforce the blue light strength of LED light source, if human eye sees such light source for a long time, be easy that people is allowed to generate head
Dizzy dim eyesight, uncomfortable feeling, or even eye injury can be caused, the especially damage of eyes macular area.Although LED desk lamp is one
Determine to reach energy-efficient effect in degree, but there are problems that blue light leakage in its optical characteristics, it would be highly desirable to improve.
Both the above desk lamp, most circuit components are placed in against lamp body in Cap casing, normal in user
In the state of use, the head of user is extremely close to circuit components, and the electromagnetic radiation that circuit components are sent out will be right
Head impacts, furthermore, certain desk lamps built-in circuit component in the lamp cap of lamp body, with the startup of desk lamp, local mistake
Heat is easy to impact circuit components, and this desk lamp is easy the presence of stroboscopic, glare, and stroboscopic causes bad thorn to human eye
Swash, user easy tos produce the symptoms such as eye fatigue, dry and astringent.
With the improvement of living standards, requirement of the people to quality of life is also continuously improved, in addition to people are daily known
Air pollution, outside food pollution, how to cope with light pollution problem also gradually attracts people's attention, it is therefore necessary to existing
Desk lamp be improved.
Invention content
In view of this, this patent aims to overcome that the deficiencies in the prior art, a kind of light source is provided and prepares simple and energy
Effectively reduce the eye-protecting type flat-plate light source desk lamp of electromagnetic radiation.
In order to solve the above-mentioned technical problem, the present invention is realized using following scheme：
A kind of eye-protecting type flat-plate light source desk lamp（Abbreviation FL desk lamps）, including pedestal, Cap casing and connect base and Cap casing
Movable rod, flat-plate light source that can be unidirection luminous is equipped in the Cap casing, being equipped in pedestal can drive flat-plate light source to shine
Driving device, the flat-plate light source is electrically connected with driving device.
Flat-plate light source is that area source takes out mode processed relative to single branch of Conventional luminescent pipe, and area source is molded for monoblock, system
Standby difficulty declines to a great extent, fracture or damage when single branch being avoided to take out system or blowing, and flat-plate light source need not be collected using transmitting cover
Middle light avoids the excessively bright disadvantage of local environment so that generation it is photochromic more uniformly；Flat-plate light source be placed in Cap casing and
Driving device is placed in lamp holder, and electronic component relative usage person's head distance of driving device is farther, the electromagnetism spoke generated
It penetrates and is also not easy to influence user head and can reduce electromagnetic radiation to a certain extent relative to traditional desk lamp.
The flat-plate light source includes the top plate and bottom plate mutually bonded, and fillable inertia gaseous mixture is formed on the top plate
The serpentine-like luminous of body and mercury, the inner surface of the luminous and corresponding backplate surface are equipped with one layer of guarantor
Sheath is equipped with reflecting layer and phosphor powder layer on the protective layer of bottom plate successively, and the protective layer of luminous is equipped with phosphor powder layer, and
The both ends of luminous are respectively equipped with electrode, and flat-plate light source is electrically connected by electrode with driving device.
Top plate can be molded by high-temperature vacuum, therefore the molding of its crooked position is also relatively easy to, relative to traditional
Single branch takes out mode processed and prepares luminous tube, can substantially reduce manufacture difficulty；Top can be bonded in one with bottom plate by high-temperature vacuum
Rise, snakelike luminous just forms confined space, similar with conventional fluorescent, after energization under two extra-high voltages inertia gaseous mixture
Volume ionization then hits mercury atom and sends out ultraviolet light, and ultraviolet light hits fluorescent powder and then sends out white light；Protective layer, reflecting layer and glimmering
Light bisque can be reached by modes such as coating, vapor deposition, printings, and protective layer can be thermostable transparent coating, can make confined space
Inner wall can realize unidirectional emission light from pollution, the laying in reflecting layer, reduce loss of the light toward both sides, and then generate good
Illumination effect, greatly improve the utilization rate of light.
The inert mixed gas includes the mixed gas that argon gas, nitrogen, xenon and Krypton are combined into, wherein the body of argon gas
Product accounting is 92.7 ~ 95.4%, and nitrogen is 3.2 ~ 5.7%, and xenon is 0.12 ~ 0.49%, and Krypton is 1.2 ~ 3.7%, and the mercury contains
Amount is 1.7 ~ 3.3mg.
Traditional argon gas be easy to cause the enhancing of phosphor surface effect after powered up, so that in energy transmission mistake
The aging of rare-earth trichromatic fluorescent powder is caused to decay in journey, and this patent is by mixing above-mentioned gas, it can be in fluorescence
Powder is acted on by impure ion is offset when exciting, and is reduced skin effect, is delayed the decaying of fluorescent powder.
The phosphor powder layer includes that the calcium halophosphate activated by antimony andmanganese that quality accounting is 3.2 ~ 5.5% activates halogen calcium phosphate fluoressent powder and surplus
Rare-earth trichromatic fluorescent powder, the rare-earth trichromatic fluorescent powder include quality accounting be 20.9 ~ 29.3% europium activated yttria,
30.2 ~ 38.1% cerium, terbium activation magnesium aluminate and 36.3 ~ 47.7% europium activate magnesium aluminate barium.
Two kinds of fluorescent powders are mixed by special ratios, the anti-bombardment ability of fluorescent powder can be enhanced, further delayed
The aging of fluorescent powder decays, and when being excited, can send out the spectrum that green light accounting surpasses 70%, colour temperature is in 3500k ~ 4000K
Between, the eyes of people can be made more comfortable, achieve the effect that eyeshield, eye-candy.
The driving device includes：
Power supply module exports the electric power that external power supply provides after processing；
Module is driven, output power is adjusted according to the power of input terminal or frequency；
Boost module, to improve voltage to supply flat-plate light source；
Module is controlled, output is adjusted to the work(for driving module according to the time of the temperature of flat-plate light source and running
Rate；
The input terminal of the power supply module is connect with external power supply, one of described driving module input terminal and power supply
The output end of module is electrically connected, and output end is connected to one end of flat-plate light source, the other end of flat-plate light source by the module that boosts
Control module is connected to feedback signal, the input terminal of the control module is electrically connected with the output end of power supply module, exports
Another input terminal with driving module is held to be electrically connected.
Internal electric source of the power supply module as driving device is supplied to control by the electric power of external power supply after conversion
Molding group, driving module and boosting module so that control module, driving module and boosting module export power appropriate extremely
Flat-plate light source.
The power supply module include the anti-electromagnetic interference unit, rectification unit, power factor correction unit that are sequentially connected in series with
And switching power supply, the anti-electromagnetic interference unit are connect with external power supply, can reduce the electromagnetic interference signal of external power supply,
And export the electric current of filtering interference signals to rectification unit, alternating current is converted to direct current by the rectification unit, and will be straight
Galvanic electricity is exported to power factor correction unit to promote power supply quality, later again opens direct current electricity output to switching power supply
Powered-down source unit is exported electric power in a manner of Pulse Width Modulation.
The driving module is that resonance full-bridge type or resonant half-bridge formula light source drive chip, can be according to control signal
Power or frequency change output power.
The boosting module includes more than one leakage transformer, and voltage is promoted to supply tablet by leakage transformer
Light source.
The control module includes switch control unit, switch unit and feedback adjustment unit；The switch control unit
It is electrically connected respectively with power supply module and switch unit, according to leading for the run time of flat-plate light source and temp control switch unit
Logical state；The feedback adjustment unit is electrically connected with switch unit and driving module respectively, according to the conducting of switch unit
State and change output to drive module power；The flat-plate light source is connected to feedback adjustment unit with feedback signal.Switch
The characteristic of resistance capacitance charge and discharge may be used to determine the conducting situation of switch unit in control unit.
The switch control unit includes diode and the capacitance, first resistor and the temperature control part that are sequentially connected in series, the electricity
The other end of appearance is electrically connected with the switching power supply in power supply module, the other end ground connection of the temperature control part, the diode
Cathode be electrically connected between capacitance and first resistor, plus earth；
The switch unit is transistor；The transistor includes transistor collector, transistor base stage and transistor emitter-base bandgap grading,
Transistor collector is electrically connected to feedback adjustment unit, and transistor base stage is electrically connected between temperature control part and first resistor, and electricity is brilliant
Body emitter grounding；
The feedback adjustment unit includes the second resistance being sequentially connected in series, 3rd resistor and the 4th resistance, and described second
The other end of resistance is electrically connected with flat-plate light source, and the other end ground connection of the 4th resistance, the transistor collector is electrically connected to third
Between resistance and the 4th resistance, another input terminal of the driving module is electrically connected between second resistance and 3rd resistor.
Before flat-plate light source not yet starts, the relatively low therefore required startup power of the temperature of flat-plate light source is higher, works as flat-plate light source
The initial stage being activated, capacitance just start to charge up, and when capacitance just starts to charge up, the resistance of temperature control part and voltage drop are higher, at this time
Switch unit is in saturation region, therefore the equivalent ground connection of tie point between 3rd resistor and the 4th resistance, and through second resistance and
After 3rd resistor partial pressure, feedback signal which is obtained by the tie point between second resistance and 3rd resistor compared with
Small, driving module exports larger power according to feedback signal.
After flat-plate light source operates a period of time, flat-plate light source makes surface temperature rise because of energization, at this time flat-plate light source
The required power of starting state is maintained to be gradually reduced with the rising of temperature, the resistance value of temperature control part declines therewith, capacitance
On voltage also persistently charge and rise, the voltage drop at temperature control part both ends decreases, at this time switch unit be in workspace or
Cut-off region, the tie point between 3rd resistor and the 4th resistance just can not be grounded by switch unit, second resistance and third electricity
Tie point pressure drop between resistance becomes larger relatively, and driving module is larger thus to obtain signal, and then keeps the output of driving module smaller
Power.
By the cooperation of power supply module, control module, driving module and the module that boosts, the steady fortune of flat-plate light source is realized
The phenomenon that row, reduction flat-plate light source stroboscopic, occurs.
The conducting situation of switch unit is controlled in control module using capacitance and the charge-discharge characteristic of first resistor, and
The turn-on time point of switch unit, wherein adjustable capacitance, the first electricity are determined using the time constant of capacitance and first resistor
The size of resistance and temperature control part is to coordinate the startup electrical characteristic of flat-plate light source.
The driving device is wrapped up by metal mesh, it is preferable that the metal mesh is copper mesh or silver-colored net.By electric field or magnetic field
Influence is limited within the scope of one, and prevents external electrostatic induction or the influence of electromagnetic induction
Compared with prior art, the present invention has the advantages that：
1. flat-plate light source and driving device are separated in the desk lamp of the present invention, and driving device is wrapped up using shielding case,
Reduce the electromagnetic radiation of itself outward transmitting and outer bound pair its influence, improve the stability of operation, and driving device is placed in lamp
Seat farther out apart from user head reduces influence of the electromagnetic radiation to user head；
2. driving device passes through the interaction of power supply module, control module, driving module and the module that boosts so that flat
Plate light source without stroboscopic, low glare, operate steadily, and can be according to flat-plate light source run time and temperature dynamic adjustment output to tablet
The power of light source achievees the purpose that intelligent control output power and protection load；
3. by the adjustment to inert mixed gas and fluorescent powder, the anti-aging process of fluorescent powder is improved, reduces tablet light
The generation of the light decay phenomenon in source, and the green light accounting that desk lamp is sent out is improved, it is more suitable for human eye.
Description of the drawings
Fig. 1 is Table lamp structure schematic diagram；
Fig. 2 is flat-plate light source plan view；
Fig. 3 is A-A sectional views in Fig. 2；
Fig. 4 is driving device structure schematic diagram；
Fig. 5 modular structure schematic diagrames in order to control；
3 light-source structure schematic diagram of the positions Fig. 6 embodiment；
Fig. 7 is 1 spectrogram of embodiment；
Fig. 8 is 2 spectrogram of embodiment
Fig. 9 is 1 spectrogram of comparative example；
Figure 10 is 2 spectrogram of comparative example；
Figure 11 is 3 spectrogram of comparative example；
Figure 12 is 4 spectrogram of comparative example；
Figure 13 is 5 spectrogram of comparative example；
Figure 14 is 6 spectrogram of comparative example；
Figure 15 is 7 spectrogram of comparative example；
Wherein, 10, pedestal；11, it switchs；12, power cord；20, movable rod；30, Cap casing；40, flat-plate light source；41、
Top plate；42, bottom plate；43；Luminous；431, phosphor powder layer；432, protective layer；433, reflecting layer；44, electrode；50, driving dress
It sets；51, power supply module；52, module is controlled；521, switch control unit；5211, capacitance；5212, first resistor；5213, temperature control
Part；5214, diode；522, switch unit；5221, transistor collector；5222, transistor base stage；5223, transistor emitter-base bandgap grading；
523, feedback adjustment unit；5231, second resistance；5232,3rd resistor；5233, the 4th resistance；53, module is driven；54, it rises
Pressing mold group；60, external power supply.
Specific implementation mode
In order to allow those skilled in the art to more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings to the present invention
It is further elaborated.
Embodiment 1
As shown in Figure 1, a kind of eye-protecting type flat-plate light source desk lamp, including pedestal 10, Cap casing 30 and connect base 10 with
The movable rod 20 of Cap casing 30, the pedestal 10 are equipped with switch 11 and are connected with power cord 12, set in the lamp cap 30
There is flat-plate light source 40 that can be unidirection luminous, the driving device 50 that flat-plate light source 40 can be driven luminous is equipped in pedestal 10, it is described flat
Plate light source 40 is electrically connected with driving device 50.
As shown in Figures 2 and 3, the flat-plate light source 40 includes mutually cohesive abacus 41 and square floor 42, described
The serpentine-like luminous 43 of fillable inert mixed gas and mercury, the interior table of the luminous 43 are formed on top plate 41
Face and corresponding backplate surface are equipped with layer protective layer 432, be equipped with successively on the protective layer of bottom plate 42 reflecting layer 433 and
The protective layer of phosphor powder layer 431, luminous is equipped with phosphor powder layer 431, and the both ends of luminous 43 are respectively equipped with electrode
44, flat-plate light source 40 is electrically connected by electrode 44 with driving device 50.
The inert mixed gas includes the mixed gas that argon gas, nitrogen, xenon and Krypton are combined into, wherein the body of argon gas
Product accounting is 92.7%, nitrogen 3.2%, xenon 0.49%, Krypton 3.61%, and the content of the mercury is 1.7mg.
The phosphor powder layer includes that the calcium halophosphate activated by antimony andmanganese that quality accounting is 3.2% activates halogen calcium phosphate fluoressent powder and the rare earth of surplus
Three primary colors fluorescent powder, the rare-earth trichromatic fluorescent powder include quality accounting be 21.9% europium activated yttria, 30.3% cerium,
Terbium activates magnesium aluminate and 47.8% europium to activate magnesium aluminate barium.
As shown in figure 4, the driving device 50 includes：
Power supply module 51 comprising the anti-electromagnetic interference unit that is sequentially connected in series, rectification unit, power factor correction unit with
And switching power supply, the anti-electromagnetic interference unit are electrically connected with external power supply 60；
Module 53 is driven, chip is driven for resonance full-bridge type light source；
Boost module 54 comprising two leakage transformers；
As shown in figure 5, the control module 52 includes switch control unit 521, switch unit 522 and feedback adjustment unit
523, the switch control unit 521 includes diode 5214 and the capacitance 5211, first resistor 5212 and the temperature that are sequentially connected in series
Control 5213, temperature control part 5213 are thermistor, the switching power supply of the other end and power supply module 51 of the capacitance 5211
Electrical connection, the other end ground connection of the temperature control part 5213, cathode and capacitance 5211 and the first resistor of the diode 5214
It is electrically connected between 5212, plus earth；
The switch unit is transistor, and the transistor includes transistor collector 5221, transistor base stage 5222 and electricity
Crystal emitter-base bandgap grading 5223, transistor collector 5221 are electrically connected to feedback adjustment unit 523, and transistor base stage 5222 is electrically connected to temperature control
Between part 5213 and first resistor 5212, transistor emitter-base bandgap grading 5223 is grounded；
The feedback adjustment unit 523 includes the second resistance 5231 being sequentially connected in series, 3rd resistor 5232 and the 4th electricity
Resistance 5233, the other end of the second resistance 5231 is electrically connected with flat-plate light source 40,5233 other ends ground connection of the 4th resistance, institute
Transistor collector 5221 is stated to be electrically connected between 3rd resistor 5232 and the 4th resistance 5233, it is described to drive the another defeated of module 50
Enter end to be electrically connected between second resistance 5231 and 3rd resistor 5232.
The driving device is wrapped up by copper mesh.
Embodiment 2
The present embodiment is similar to Example 1, and difference lies in the inert mixed gas includes argon gas, nitrogen, xenon and krypton
The mixed gas that gas is combined into, wherein the volume accounting of argon gas are 93.98%, nitrogen 4.7%, xenon 0.12%, and Krypton is
1.2%, the content of the mercury is 3.3mg.
The phosphor powder layer includes that the calcium halophosphate activated by antimony andmanganese that quality accounting is 3.2% activates halogen calcium phosphate fluoressent powder and the rare earth of surplus
Three primary colors fluorescent powder, the rare-earth trichromatic fluorescent powder include quality accounting be 27.3% europium activated yttria, 36.1% cerium,
Terbium activates magnesium aluminate and 36.6% europium to activate magnesium aluminate barium.
Embodiment 3
The present embodiment is similar to Example 1, and difference lies in as shown in fig. 6, the top plate 41 and bottom plate 42 are circle.
Comparative example 1
The present embodiment is similar to Example 1, and difference lies in inert gas is all argon gas.
Comparative example 2
The present embodiment is similar to Example 1, and difference lies in phosphor powder layer is all rare-earth trichromatic fluorescent powder, and three kinds glimmering
Light silty amount accounting is consistent.
Comparative example 3
This comparative example is similar with comparative example 2, and difference lies in inert gas is all argon gas.
Comparative example 4
This comparative example is similar to Example 1, and difference lies in the inert mixed gas includes argon gas, nitrogen, xenon and krypton
The mixed gas that gas is combined into, wherein the volume accounting of argon gas are 88.98%, nitrogen 9.7%, xenon 0.12%, and Krypton is
1.2%。
Comparative example 5
This comparative example is similar to Example 1, includes argon gas, nitrogen and Krypton combination difference lies in the inert mixed gas
At mixed gas, wherein the volume accounting of argon gas be 93.5%, nitrogen 4.7%, Krypton 1.8%.
Comparative example 6
This comparative example is similar to Example 1, and difference lies in activate halogen calcium phosphate fluoressent powder without calcium halophosphate activated by antimony andmanganese.
Comparative example 7
This comparative example is similar to Example 1, and difference lies in the phosphor powder layer includes the calcium halophosphate activated by antimony andmanganese that quality accounting is 8.2%
Halogen calcium phosphate fluoressent powder and the rare-earth trichromatic fluorescent powder of surplus are activated, the rare-earth trichromatic fluorescent powder includes quality accounting
Magnesium aluminate and 49.8% europium is activated to activate magnesium aluminate barium for 16.9% europium activated yttria, 33.3% cerium, terbium.
One, electromagnetic radiation is tested：
User's head position is simulated using electromagnetic radiation tester（Apart from Cap casing 15cm）Measure above-described embodiment 1 ~ 3
And the electromagnetic radiation of 3 desk lamp of comparative example, as a result such as the following table 1：
The electromagnetic radiation of embodiment 1 ~ 3 significantly reduces.
Two, light decay is tested：
According to GB/T 17263-2013 general lightings self-ballasted fluorescent lamp performance requirement, to embodiment 1 ~ 3 and right
Ratio 1 ~ 7 carries out light decay test, as a result such as table 2：
Embodiment 1 ~ 3 keeps higher luminous flux sustainment rate, and colour temperature more adapts to people between 3500 ~ 4000K
Eye；Inert gas is all argon gas in comparative example 1, even if under the premise of the fluorescent powder of the cooperation present invention, luminous flux sustainment rate still has
Decline；The proportioning of fluorescent powder is changed in comparative example 2 so that its ageing resistance is declined, so that luminous flux maintains
Rate becomes smaller；Comparative example 3 further has changed inert gas and luminous flux sustainment rate is further reduced relative to comparative example 2,
Illustrate that the present invention under the cooperation of inert mixed gas and fluorescent powder, can effectively keep higher luminous flux sustainment rate；Comparison
Example 4 and 7 is changed to the content of inert mixed gas and fluorescent powder respectively so that luminous flux sustainment rate becomes smaller, and colour temperature becomes
Greatly, illustrate that the slightly variation of content produces negative effect, be only in the scope of the present invention optimal；Comparative example 5 and 6
In, change has been allocated as to the group of inert mixed gas and fluorescent powder, negative impact equally is produced to result.
Three, spectrum test
Embodiment 1 ~ 2 and comparative example 1 ~ 7 are tested using spectrometer；
As shown in FIG. 7 and 8, the respectively spectrogram of 2 desk lamp of embodiment 1 and embodiment, it is known that wavelength is 495 ~ 570nm's
Green light accounting is larger, and up to 70% or more, and wavelength accounts for smaller in the blue light of 476 ~ 495nm, therefore the light sent out is more suitable for desk lamp
Local environment, and the reduction of blue light then effectively prevent damaging human eye；It is the test of comparative example 1 ~ 7 as shown in Fig. 9 ~ 15
Spectrogram, wherein blue light components increased and green light accounting is reduced, especially comparative example 3, equal in inert gas and fluorescent powder
In the case of change, blue light accounting increases obviously, and comparative example 4 and 7, even if in the case that proportioning slightly changes, but also green
Light accounting reduces and blue light accounting rises.
Claims (6)
1. a kind of eye-protecting type flat-plate light source desk lamp includes the movable rod of pedestal, Cap casing and connect base and Cap casing, special
Sign is, flat-plate light source that can be unidirection luminous is equipped in the Cap casing, the drive that flat-plate light source can be driven luminous is equipped in pedestal
Dynamic device, the flat-plate light source are electrically connected with driving device；
The flat-plate light source includes the top plate and bottom plate mutually bonded, formed on the top plate fillable inert mixed gas and
The serpentine-like luminous of mercury, the inner surface of the luminous and corresponding backplate surface are equipped with one layer of protection
Layer, reflecting layer and phosphor powder layer are equipped on the protective layer of bottom plate successively, the protective layer of luminous is equipped with phosphor powder layer, and sends out
The both ends of optical channel are respectively equipped with electrode, and flat-plate light source is electrically connected by electrode with driving device；
The inert mixed gas includes the mixed gas that argon gas, nitrogen, xenon and Krypton are combined into, and the volume of wherein argon gas accounts for
Than being 92.7 ~ 95.4%, nitrogen is 3.2 ~ 5.7%, and xenon is 0.12 ~ 0.49%, and Krypton is 1.2 ~ 3.7%, and the content of the mercury is
1.7~3.3mg；
The phosphor powder layer includes that the calcium halophosphate activated by antimony andmanganese that quality accounting is 3.2 ~ 5.5% activates halogen calcium phosphate fluoressent powder and the rare earth of surplus
Three primary colors fluorescent powder, the rare-earth trichromatic fluorescent powder include quality accounting be 20.9 ~ 29.3% europium activated yttria, 30.2 ~
38.1% cerium, terbium activation magnesium aluminate and 36.3 ~ 47.7% europium activate magnesium aluminate barium.
2. eye-protecting type flat-plate light source desk lamp according to claim 1, which is characterized in that the driving device includes：
Power supply module exports the electric power that external power supply provides after processing；
Module is driven, output power is adjusted according to the power of input terminal or frequency；
Boost module, to improve voltage to supply flat-plate light source；
Module is controlled, output is adjusted to the power for driving module according to the time of the temperature of flat-plate light source and running；
The input terminal of the power supply module is connect with external power supply, one of described driving module input terminal and power supply module
Output end electrical connection, output end is connected to one end of flat-plate light source, the other end connection of flat-plate light source by the module that boosts
To control module with feedback signal, the input terminal of the control module is electrically connected with the output end of power supply module, output end and
Drive another input terminal electrical connection of module.
3. eye-protecting type flat-plate light source desk lamp according to claim 2, which is characterized in that
The power supply module includes the anti-electromagnetic interference unit being sequentially connected in series, rectification unit, power factor correction unit and opens
Powered-down source unit, the anti-electromagnetic interference unit are connect with external power supply；
The driving module is that resonance full-bridge type or resonant half-bridge formula light source drive chip；
The boosting module includes more than one leakage transformer；
The control module includes switch control unit, switch unit and feedback adjustment unit；The switch control unit difference
It is electrically connected with power supply module and switch unit, according to the conducting shape of the run time of flat-plate light source and temp control switch unit
State；The feedback adjustment unit is electrically connected with switch unit and driving module respectively, according to the conducting state of switch unit
And change output to the power for driving module；The flat-plate light source is connected to feedback adjustment unit with feedback signal.
4. eye-protecting type flat-plate light source desk lamp according to claim 3, which is characterized in that
The switch control unit includes diode and the capacitance, first resistor and the temperature control part that are sequentially connected in series, the capacitance
The other end is electrically connected with the switching power supply in power supply module, the other end ground connection of the temperature control part, the moon of the diode
Pole is electrically connected between capacitance and first resistor, plus earth；
The switch unit is transistor；The transistor includes transistor collector, transistor base stage and transistor emitter-base bandgap grading, and electricity is brilliant
Body collector is electrically connected to feedback adjustment unit, and transistor base stage is electrically connected between temperature control part and first resistor, and transistor is penetrated
Pole is grounded；
The feedback adjustment unit includes the second resistance being sequentially connected in series, 3rd resistor and the 4th resistance, the second resistance
The other end be electrically connected with flat-plate light source, the other end of the 4th resistance ground connection, the transistor collector is electrically connected to 3rd resistor
And the 4th between resistance, another input terminal of the driving module is electrically connected between second resistance and 3rd resistor.
5. eye-protecting type flat-plate light source desk lamp according to claim 1, which is characterized in that the driving device is by metal mesh packet
It wraps up in.
6. eye-protecting type flat-plate light source desk lamp according to claim 5, which is characterized in that the metal mesh is copper mesh or silver
Net.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822313A (en) * | 2006-03-21 | 2006-08-23 | 东南大学 | Flat plate type external extrode fluorescence lamp and its producing method |
| CN101475801A (en) * | 2009-01-09 | 2009-07-08 | 中国科学院上海硅酸盐研究所 | Antimonate series luminescent material for white light LED and preparation thereof |
| CN101671562A (en) * | 2007-07-02 | 2010-03-17 | 北京宇极科技发展有限公司 | Nitrogen oxides luminescent material and preparation method and application thereof |
| CN102026458A (en) * | 2009-09-11 | 2011-04-20 | 贝克来光电股份有限公司 | Driving apparatus of plane light source |
| CN204164791U (en) * | 2014-11-17 | 2015-02-18 | 陈永民 | A kind of planar light source desk lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113885A1 (en) * | 2004-11-29 | 2006-06-01 | Keiji Iimura | Discharge fluorescen apparatus including fluorescent fibers |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822313A (en) * | 2006-03-21 | 2006-08-23 | 东南大学 | Flat plate type external extrode fluorescence lamp and its producing method |
| CN101671562A (en) * | 2007-07-02 | 2010-03-17 | 北京宇极科技发展有限公司 | Nitrogen oxides luminescent material and preparation method and application thereof |
| CN101475801A (en) * | 2009-01-09 | 2009-07-08 | 中国科学院上海硅酸盐研究所 | Antimonate series luminescent material for white light LED and preparation thereof |
| CN102026458A (en) * | 2009-09-11 | 2011-04-20 | 贝克来光电股份有限公司 | Driving apparatus of plane light source |
| CN204164791U (en) * | 2014-11-17 | 2015-02-18 | 陈永民 | A kind of planar light source desk lamp |
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