CN208335182U - A kind of electronic reader with reading lamp - Google Patents
A kind of electronic reader with reading lamp Download PDFInfo
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- CN208335182U CN208335182U CN201820947896.8U CN201820947896U CN208335182U CN 208335182 U CN208335182 U CN 208335182U CN 201820947896 U CN201820947896 U CN 201820947896U CN 208335182 U CN208335182 U CN 208335182U
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- light source
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- reading lamp
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Abstract
The utility model relates to a kind of electronic readers with reading lamp, it include: reading lamp, set on the side of electronic reader, including first light source group and second light source group, first light source group and second light source group include at least one light source, and the light source of second light source group provides the colour temperature different with when the light source luminescent of first light source group when shining；Light guide section, the light guide section one side opposite with reading lamp are the incidence surface of light guide section, and reading lamp is set to the side of light guide section；Light source driver module, including connecting the first light source group pin of first light source group and connecting the second light source group pin of second light source group, light source driver module is used to provide operating current to first light source group and second light source group, by adjusting the size of the operating current of the size and second light source group pin of the operating current of first light source group pin, to provide different reading lamp color temperatures.The utility model can provide the illumination of different-colour, meet the different demands of user.
Description
Technical field
The utility model relates to electronic readers, more particularly to a kind of electronic reader with reading lamp.
Background technique
It is read under conditions of dim for the ease of user, part electronic reader is equipped with reading lamp, such as by light source
The preceding light formula reading lamp being integrated in inside electronic reader.Traditional electronic reader, the reading lamp of outfit is on a display screen
Illumination is usually dull white.
Utility model content
Based on this, it is necessary to provide a kind of electronic reader with reading lamp, be capable of providing the illumination of different-colour.
A kind of electronic reader with reading lamp, comprising: reading lamp, set on the side of the electronic reader, including
First light source group and second light source group, the first light source group and second light source group include at least one light source, and described second
The light source of light source group provides the colour temperature different with when the light source luminescent of the first light source group when shining；Light guide section, it is described to lead
The light portion one side opposite with the reading lamp is the incidence surface of light guide section, and the reading lamp is set to the side of the light guide section；Light
Source drive module, including connecting the first light source group pin of the first light source group and the second light of the connection second light source group
Source group pin, the light source driver module are used to provide operating current to the first light source group and second light source group, pass through tune
The size of the operating current of the size and second light source group pin of the operating current of the whole first light source group pin, to provide not
Same reading lamp color temperature.
The light guide section is light guide plate in one of the embodiments, and the light guide plate is equipped with multiple light guiding points.
The light guiding points are remoter apart from the reading lamp in one of the embodiments, arrangement is more intensive.
The light source interval of the light source of the first light source group and second light source group is arranged in one of the embodiments,.
The light source of the reading lamp is arranged at least two rows of, the light of the first light source group in one of the embodiments,
The light source of source and second light source group is located at different rows.
The reading lamp is preceding light formula reading lamp in one of the embodiments,.
It in one of the embodiments, further include the light-blocking part above the reading lamp, the light-blocking part extends to
The incidence surface.
The light guide section is light guide plate in one of the embodiments, and the light guide plate is from the incidence surface to incidence surface
Opposite face thickness be gradually reduced.
It in one of the embodiments, further include backboard, the backboard is set to the electronic reader and the reading is arranged
The side of lamp, the reading lamp include lamp bar, and the lamp bar includes protrusion away from the side of light emission side, and the backboard is close to described
The side of lamp bar includes accommodation groove, and the protrusion is embedded in the accommodation groove.
The accommodation groove is wedge groove in one of the embodiments,.
The above-mentioned electronic reader with reading lamp, including first light source group and second light source group, first light source group use
The colour temperature different from second light source group.The operating current size of light source driver module first light source group pin can be independently of second
The operating current of light source group pin is adjusted, and so as to provide the illumination of different-colour, meets the different demands of user.
Detailed description of the invention
Fig. 1 is a kind of schematic top plan view of the reading lamp position of electronic reader with reading lamp；
Fig. 2 is a kind of schematic side view of the reading lamp position of electronic reader with reading lamp；
Fig. 3 is the light guiding points arrangement schematic diagram of region A and region B in embodiment illustrated in fig. 1；
Fig. 4 is the arrangement schematic diagram of first light source group and second light source group in lamp bar in one embodiment；
Fig. 5 is the arrangement schematic diagram of first light source group and second light source group in lamp bar in another embodiment；
Fig. 6 a, 6b are the schematic diagram of light-blocking part in two embodiments respectively；
Fig. 7 is the schematic diagram that U-type groove is arranged in one embodiment on the incidence surface of light guide section；
Fig. 8 is the schematic diagram of light guide plate in an embodiment using the light guide plate of gradient thickness；
Fig. 9 is the schematic diagram that another uses light guide plate in the embodiment of the light guide plate of gradient thickness；
Figure 10 is the schematic diagram in the protrusion insertion accommodation groove at the lamp bar back side in one embodiment；
Figure 11 is the block diagram of reading lamp interlock circuit in the electronic reader for have in an embodiment reading lamp；
Figure 12 is the circuit diagram of reading lamp interlock circuit in the electronic reader for have in an embodiment reading lamp.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement are for illustrative purposes only.
Fig. 1 is a kind of schematic top plan view of the reading lamp position of electronic reader with reading lamp, and Fig. 2 is that one kind has
The schematic side view of the reading lamp position of the electronic reader of reading lamp.Reading lamp 110 is set to the side of electronic reader, including
First light source group and second light source group.Wherein first light source group and second light source group include at least one light source, second light source
The light source of group provides the colour temperature different with when the light source luminescent of first light source group when shining.
Electronic reader further includes light guide section 120 and light source driver module (not showing in Fig. 1 and Fig. 2).Reading lamp 110 is set to
The side of light guide section, the one side opposite with reading lamp 110 of light guide section 120 are the incidence surface 121 of light guide section.It light guide section 120 and reads
There are gaps between reading lamp 110.
Light source driver module include connect first light source group first light source group pin and connect second light source group second
Light source group pin, light source driver module is used to provide operating current to first light source group and second light source group, by adjusting first
The size of the operating current of the size and second light source group pin of the operating current of light source group pin, to provide different reading lamps
Colour temperature.
The above-mentioned electronic reader with reading lamp, including first light source group and second light source group, first light source group use
The colour temperature different from second light source group.The operating current size of light source driver module first light source group pin can be independently of second
The operating current of light source group pin is adjusted (it should be understood that the operating current size of second light source group pin is equally independent
Adjusted in the operating current of first light source group pin), so as to provide the illumination of different-colour, meet the different need of user
It asks.
In one embodiment, the light source of first light source group and the light source of second light source group are light emitting diode (LED).
In the embodiment shown in fig. 1, reading lamp 110 is set to the bottom side of electronic reader, that is, is designed as that user is hand-held to be made
Used time side directed downwardly.
In the embodiment shown in fig. 1, the winding displacement of electronic reader bottom side blocks the light source at the position, practical to arrange
The line place of blocking is also equipped with the light source of reading lamp 110.
In one embodiment, reading lamp 110 is preceding light formula reading lamp, i.e., light source is set on the front of display screen.
In one embodiment, light guide section 120 is light guide plate, and light guide plate 120 is equipped with multiple light guiding points.When light (example
As reading lamp 110 be emitted light) travel to light guiding points when, light can by light guiding points to all directions reflect and/or reflect, from
And propagation path is changed, and is emitted from the light-emitting surface of light guide plate 120, so that each point light source is changed into area source.
In one embodiment, light guiding points are remoter apart from reading lamp 110, arrangement is more intensive.Please with reference to Fig. 1 and Fig. 3,
Fig. 3 is the light guiding points arrangement schematic diagram of region A and region B in embodiment illustrated in fig. 1.It should be pointed out that in order to enable human eye
It is more preferable to differentiate, it is different in the size of encircled and Fig. 1 in Fig. 3.By gradually increasing leaded light to the direction far from reading lamp 110
The closeness of point can be such that light guide plate 120 is consistent at reading lamp 110 and far from the brightness at reading lamp 110, reach
To the effect of the reading brightness uniformity of entire screen.
In one embodiment, the light source 112 of first light source group and the setting of the light source 114 of second light source group interval, such as Fig. 4
It is shown.
In another embodiment, the light source of reading lamp is arranged at least two rows of, the light source of first light source group and the second light
The light source of source group is located at different rows.In the embodiment shown in fig. 5, the light source 212 of first light source group is arranged in a row, the second light
The light source 214 of source group lines up another row.Since the light source of reading lamp is generally using series connection, the light that will be cascaded
Source, which is arranged in a row, to be conducive to be routed.However concatenated quantity of light source excessively can be higher to the proposition of the driving capability of light source driver module
Requirement, therefore concatenated light source number should not be excessive.So, light source is arranged in two rows or more, the light source phase of each row
Mutually series connection, exactly one can take into account the scheme of wiring convenience and light source driver module driving capability.
Referring to Fig. 6 a, in the embodiment shown in Fig. 6 a, electronic reader further includes set on the light-blocking of 110 top of reading lamp
Portion 130, light-blocking part 130 extend to incidence surface 121.In the embodiment shown in 6a, light-blocking part 130 is overlapped on above lamp bar,
Light-blocking part 130 can also extend to the backboard at lamp bar rear in another embodiment.Light-blocking part 130 can be by reading lamp 110
The light for being projeced into oblique upper is reflected, and is reduced light leakage, is improved the utilization rate of light source.It in one embodiment, can also be
Between reading lamp 110 and incidence surface 121, the lower section of light source be arranged reflective layer, to further decrease light leakage.
Fig. 6 b is the schematic diagram of light-blocking part in another embodiment, and in this embodiment, light-blocking part 139 forms light-blocking song
Face, reflective layer 140 form the reflective surface matched with light-blocking curved surface, and more light are imported light guide plate 120 by the two cooperation
In.
Referring to Fig. 7, in one embodiment, multiple U-type groove 121a can also be set on the incidence surface of light guide section, passed through
U-type groove 121a is imported in light guide section after breaing up the light of light source 313, further increases the uniformity of screen intensity.
In the embodiment shown in fig. 8, opposite face 223 of the thickness of light guide plate 220 from incidence surface 221 to incidence surface be gradually
Reduce.The structure can use the different thickness in 220 two sides of light guide plate and correspond to different angles, transmit in light guide plate 220
Light is via total reflection by light conduction to light inclined-plane 225 out.
Due to the lightening requirement of electronic reader, the thick side of light guide plate 220 can not be too thick, corresponding inclined-plane
225 inclination angles also cannot be too big, and light source is caused to project from inclined-plane 225 with can not be successfully in the regional area close to incidence surface 221,
To which the insufficient blanking bar of illumination can be being formed at incidence surface 221.Fig. 9 is the structural representation of light guide plate in another embodiment
Figure, in this embodiment, the bottom of light guide plate 320 includes the first inclined-plane 327 and the second inclined-plane 325, wherein 327 He of the first inclined-plane
The angle x of top surface 322 is greater than the angle y on the second inclined-plane 325 and top surface 322.Since the gradient on the first inclined-plane 327 is higher, because
Light at this position can more form total reflection, so as to eliminate the blanking bar near incidence surface.
Referring to Figure 10, in the embodiment shown in fig. 10, electronic reader further includes backboard 150, and backboard 150 is set to electronics
Reader is provided with the side of reading lamp, and reading lamp includes lamp bar 112, and lamp bar 112 includes protrusion away from the side of light emission side
113, backboard 150 includes accommodation groove close to the side of lamp bar 112, and protrusion 113 is embedded in accommodation groove.In one embodiment, it carries on the back
Plate 150 material and/or structure high using thermal conductivity, to radiate to lamp bar 112.At 112 back of lamp bar, protrusion is set
113, the contact area of lamp bar 112 Yu backboard 150 can be increased, therefore there is better heat dissipation effect.Due to the fever of lamp bar 112
Source is light source, therefore setting protrusion 113 can pointedly radiate at each light source, and there is preferable heat dissipation to imitate
Fruit.
In the embodiment shown in fig. 10, accommodation groove is groove；Accommodation groove is also possible to through-hole in other embodiments.
Figure 11 is the block diagram of reading lamp interlock circuit in electronic reader in an embodiment with reading lamp, including first
Light source group 12, second light source group 14, light source driver module 20, input module 30 and control module 40.
In the embodiment shown in fig. 11, reading lamp includes first light source group 12 and second light source group 14, wherein the first light
Source group 12 and second light source group 14 include at least one light source, and the light source of second light source group 14 provides when luminous and the first light
Different colour temperature when the light source luminescent of source group 12.In one embodiment, first light source group 12 and second light source group 14 are all made of
Multiple light emitting diodes (LED) are used as light source, and wherein first light source group 12 includes multiple concatenated LED, second light source group 14
Including multiple concatenated LED.
Light source driver module 20 includes the first communications pins of 40 second communications pins of link control module, the first light of connection
The first light source group pin of source group 12 and the second light source group pin for connecting second light source group 14.
User is inputted by input module 30, and the input of user is converted to input signal by input module 30.Input
Module 30 may include this field known input equipment, such as key, keyboard, touch panel etc..
Control module 40 connects input module 30, including the second communications pins, the first register 41 and the second register 43.
Wherein the first communications pins of the second communications pins connection light source driver module 20, the first register 41 is for storing the first brightness
Information, the second register 43 is for storing the second luminance information.User can adjust the brightness of reading lamp by input module 30
And the adjusting operation of user is converted to reading lamp adjustment signal by colour temperature, input module 30, control module 40 is according to reading lamp tune
It saves signal and adjusts the first luminance information of the first register 41 storage and/or the second luminance information of the second register 43 storage.
Specifically, control module 40 is the brightness for only needing to adjust first light source group 12, only needs to adjust according to the input of user, judgement
The brightness of second light source group 14 or the brightness for needing while adjusting first light source group 12 and second light source group 14, then accordingly
Adjust the first luminance information of the first register 41 storage and/or the second luminance information of the second register 43 storage.Control mould
First luminance information and the second luminance information are sent to the first communications pins by the second communications pins by block 40, and light source drives mould
Block 20 adjusts the brightness of first light source group 12 according to the first luminance information, adjusts second light source group 14 according to the second luminance information
Brightness.The first luminance information corresponding with each reading lamp adjustment signal and the second brightness letter can be stored in advance in control module 40
Breath, user by input module 30 operation is adjusted when, call directly prestore it is corresponding with current reading lamp adjustment signal
The first luminance information and the second luminance information, to refresh the first register 41 and the second register 43.
The above-mentioned electronic reader with reading lamp, including first light source group 12 and second light source group 14, first light source group
12 use the colour temperature different from second light source group 14.User inputs reading lamp adjustment signal, control module by input module 30
40 according to the adjustment signal adjust the storage of the first register 41 the first luminance informations and the storage of the second register 43 it is second bright
Information is spent, and the first luminance information and the second luminance information are sent to light source driver module 20, is adjusted by light source driver module 20
The brightness of section first light source group 12 and second light source group 14 meets the difference of user so as to provide the illumination of different-colour
Demand.
In one embodiment, what the first register 41 stored is one 8 data (or address, instruction), so as to
To realize 256 grades of the brightness regulation to first light source group 12.Similarly, what the second register 43 stored is also one 8 numbers
According to (or address, instruction), 256 grades of the brightness regulation to second light source group 14 is realized.
In one embodiment, control module 40 further includes third register and the 4th register.Wherein third register
For storing the first power information of control 12 power of first light source group, the 4th register 14 is for storing control second light source group
Second power information of 14 power.First power information and the second power information can be data, pointer or address, pass through first
The power consumption of power information and the second power information control first light source group 12 and second light source group 14.
Figure 12 is the circuit diagram of reading lamp interlock circuit in the electronic reader for have in an embodiment reading lamp, should
Roundlet is decorated in conducting wire intersection in figure indicates that conducting wire intersects, is otherwise non-intersecting.In the embodiment shown in fig. 12, light source drives mould
Block uses the LED driver U6 of Texas Instrument's (TI) model LM3630A.First light source group is the light emitting diode being connected in series
D9~D15, second light source group are the light emitting diode D1~D8 being connected in series.It should be understood that in other embodiments, first
Light source group and second light source group can also use the LED of other quantity.
In the embodiment shown in fig. 12, LED driver U6 further includes overvoltage protection pin OVP and Overvoltage protecting unit,
The positive terminal of overvoltage protection pin OVP connection first light source group and the positive terminal of second light source group are (in the embodiment shown in fig. 12
First light source group and second light source group share a positive terminal LED).First light source group pin ILED1 connection first light source group
Negative pole end LEDA, the negative pole end LEDB of second light source group pin ILED2 connection second light source group.
In the embodiment shown in fig. 12, control module 40 (Figure 12 does not show) is logical by I2C bus and LED driver U6
Letter, wherein the first communications pins are serial data interface SDA.LED driver U6 further includes the serial clock interface of I2C bus
SCL, the serial clock interface of link control module 40.
Control module 40 is not shown in Figure 12, can be set using processing such as CPU, MCU well known in the art, single-chip microcontrollers
It is standby.In one embodiment, control module 40 includes the processor of Freescale model IMX6SL.
In the embodiment shown in fig. 12, LED driver U6 further includes that PWM receives foot PWM, and LED driver U6 is according to PWM
Receive the received pwm signal of foot PWM, the brightness of auxiliary control first light source group and second light source group.Control module 40 further includes
Pulse width modulating signal generating unit and PWM send foot, and pulse width modulating signal generating unit is used to generate pwm signal,
And human hair combing waste is sent by PWM and gives PWM reception foot PWM.
In one embodiment, three test points, i.e., the negative pole end LEDA of one connection first light source group can also be set
Test point, one connection second light source group negative pole end LEDB test point, one connection positive terminal LED test point, survey
Pilot can be used for detecting the electrical parameters such as the voltage of first light source group and second light source group, electric current.
In the embodiment shown in fig. 12, LED driver U6 further includes switch foot SW.Switch the electronics inside foot SW connection
Switch is the drain electrode for connecting N-channel field-effect tube in the present embodiment.Switch the usually external diode (anode) of foot SW and electricity
Sense, the diode and inductance are close to switch foot SW setting.
In the embodiment shown in fig. 12, LED driver U6 further includes working power input pin IN.
In the embodiment shown in fig. 12, LED driver U6 further include interrupt foot INTN, when receiving interrupt signal in
It is disconnected, it is generally used for malfunction change.
In the embodiment shown in fig. 12, LED driver U6 further includes enabled foot HWEN, is receiving logic high letter
Number when it is enabled.
In the embodiment shown in fig. 12, LED driver U6 further includes I2C address choice foot SEL.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of electronic reader with reading lamp characterized by comprising
Reading lamp, set on the side of the electronic reader, including first light source group and second light source group, the first light source group
It include at least one light source with second light source group, the light source of the second light source group provides when luminous and the first light source
Different colour temperature when the light source luminescent of group；
Light guide section, the light guide section one side opposite with the reading lamp are the incidence surface of light guide section, and the reading lamp is set to institute
State the side of light guide section；
Light source driver module, including connecting the first light source group pin of the first light source group and connecting the second light source group
Second light source group pin, the light source driver module are used to provide operating current to the first light source group and second light source group,
By adjusting the size of the operating current of the size and second light source group pin of the operating current of the first light source group pin, come
Different reading lamp color temperatures is provided.
2. the electronic reader according to claim 1 with reading lamp, which is characterized in that the light guide section is leaded light
Plate, the light guide plate are equipped with multiple light guiding points.
3. the electronic reader according to claim 2 with reading lamp, which is characterized in that described in the light guiding points distance
Reading lamp is remoter, arrangement is more intensive.
4. the electronic reader according to claim 1 with reading lamp, which is characterized in that the light of the first light source group
Source and the setting of the light source interval of second light source group.
5. the electronic reader according to claim 1 with reading lamp, which is characterized in that the light source of the reading lamp is arranged
At least two rows are arranged into, the light source of the first light source group and the light source of second light source group are located at different rows.
6. the electronic reader according to claim 1 with reading lamp, which is characterized in that the reading lamp is preceding light formula
Reading lamp.
7. the electronic reader according to claim 1 with reading lamp, which is characterized in that further include being set to the reading
Light-blocking part above lamp, the light-blocking part extend to the incidence surface.
8. the electronic reader according to claim 1 with reading lamp, which is characterized in that the light guide section is leaded light
Plate, opposite face thickness of the light guide plate from the incidence surface to incidence surface are gradually reduced.
9. the electronic reader according to claim 1 with reading lamp, which is characterized in that it further include backboard, the back
Plate is set to the side that the reading lamp is arranged in the electronic reader, and the reading lamp includes lamp bar, and the lamp bar is away from light out
The side of side includes protrusion, and the backboard includes accommodation groove close to the side of the lamp bar, and the protrusion is embedded in the accommodation groove
It is interior.
10. the electronic reader according to claim 9 with reading lamp, which is characterized in that the accommodation groove is wedge shape
Slot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820947896.8U CN208335182U (en) | 2018-06-19 | 2018-06-19 | A kind of electronic reader with reading lamp |
| PCT/CN2019/073500 WO2019242308A1 (en) | 2018-06-19 | 2019-01-28 | Electronic reader with reading light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820947896.8U CN208335182U (en) | 2018-06-19 | 2018-06-19 | A kind of electronic reader with reading lamp |
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| Publication Number | Publication Date |
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| CN208335182U true CN208335182U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820947896.8U Active CN208335182U (en) | 2018-06-19 | 2018-06-19 | A kind of electronic reader with reading lamp |
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| CN (1) | CN208335182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108804375A (en) * | 2018-06-19 | 2018-11-13 | 掌阅科技股份有限公司 | A kind of electronic reader with reading lamp |
| WO2019242308A1 (en) * | 2018-06-19 | 2019-12-26 | 掌阅科技股份有限公司 | Electronic reader with reading light |
-
2018
- 2018-06-19 CN CN201820947896.8U patent/CN208335182U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108804375A (en) * | 2018-06-19 | 2018-11-13 | 掌阅科技股份有限公司 | A kind of electronic reader with reading lamp |
| WO2019242308A1 (en) * | 2018-06-19 | 2019-12-26 | 掌阅科技股份有限公司 | Electronic reader with reading light |
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