CN207094328U - A kind of adjustable calligraphy practicing device of brightness - Google Patents
A kind of adjustable calligraphy practicing device of brightness Download PDFInfo
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- CN207094328U CN207094328U CN201720744129.2U CN201720744129U CN207094328U CN 207094328 U CN207094328 U CN 207094328U CN 201720744129 U CN201720744129 U CN 201720744129U CN 207094328 U CN207094328 U CN 207094328U
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Abstract
The utility model belongs to study article technical field, more particularly to a kind of adjustable calligraphy practicing device of brightness, including housing, write panel and luminescence component, the panel that writes is embedded in the middle position of housing top surface, luminescence component is embedded in enclosure interior, the light-emitting area of luminescence component is towards the panel that writes, luminescence component includes LED lamp panel, metal conducting strip and rotary switch, rotary switch is connected into LED illuminating circuits loop with LED lamp panel, for adjusting the voltage in illuminating circuit loop at LED lamp panel so as to adjusting the intensity of illumination of LED lamp panel, the panel that writes is made up of makrolon based light scattering material；The write front of panel pastes light filter film made of one layer of polyimide material；The Sidewall Height of housing is 18mm.This calligraphy practicing device is simple in construction, easy to use, can adjust intensity of illumination needed for drills to improve one's handwriting, you can protection eyesight can realize energy-conservation again, have higher practical value at any time according to extraneous intensity of illumination.
Description
Technical field
The utility model belongs to study article technical field, and in particular to a kind of adjustable calligraphy practicing device of brightness.
Background technology
The beginner of calligraphy and the fine arts is often the paper of learning to write by tracing over characters printed in red that the model to be copied is placed in blank since imitation
Under, then shone with pen and copied through the content of paper of learning to write by tracing over characters printed in red.What we typically used learn to write by tracing over characters printed in red, and paper is very thin, the writing of water-color paintbrush
Easily scratch, and be easy to be punctured and pollute model, but if changing thicker paper into, the content on model is difficult to distinguish again
Know, or even do not see Chu at all, exercise can not be copied.
Chinese invention patent CN202677662U discloses a kind of painting and calligraphy board for tracing, and it includes transparency carrier and LED light source,
The front of the transparency carrier is placed with painting and calligraphy note and drawing paper, and its back side is frosting；The light-emitting area of the LED light source and transparent base
The side of plate is relative.The light that the present invention is sent LED light source using the frosting of transparency carrier scatters out, and it is equal to form light extraction
Even area source, because LED light source is arranged on the side of transparency carrier, it is limited to be irradiated to the brightness learnt to write by tracing over characters printed in red on paper, luminous energy profit
It is low with rate, cause the wasting of resources.The intensity of illumination of board for tracing can not be according to different condition and varying environment from main regulation.Board for tracing
Work long hours, caused heat can not discharge, it is easy to cause the generation of dangerous accident.The blue light that light source irradiates is to people
Eye, especially teen-age eyesight cause very big harm, are mainly manifested in the eye for causing myopia, cataract and ARM
Eyeball pathology endangers.
Utility model content
The purpose of this utility model is that solve the low efficiency of light energy utilization present in prior art, luminous energy waste, existing calligraphy
The problem of light-source brightness present in exercise apparatus technology is immutable, intensity of illumination is unstable and blue light is big to human eye injury.
Therefore, the utility model provides a kind of adjustable calligraphy practicing device of brightness, including housing, write panel and hair
Optical assembly, the upper surface of the housing is three-back-shaped, and the panel that writes is embedded in the middle position of the housing top surface；It is described luminous
Component is fixed on the enclosure interior and positioned at the back side of the panel that writes, and the light-emitting area of luminescence component is write towards described
Literal plate, to supplement light for the panel that writes；
The panel that writes is made up of makrolon based light scattering material；
The front of the panel that writes pastes light filter film made of one layer of polyimide material, for filtering out in light
Blue light；
The Sidewall Height of the housing is 18mm, to realize minimum shaded area, reduces and light is blocked；
The luminescence component includes LED lamp panel, metal conducting strip and rotary switch, and the metal conducting strip is fixedly mounted on
On the bottom surface of the housing, the LED lamp panel is fixedly mounted on the upper surface of the metal conducting strip；The rotary switch with
LED lamp panel is connected into LED illuminating circuits loop, for adjusting the electric current in illuminating circuit loop at LED lamp panel so as to adjusting LED
The intensity of illumination of lamp plate.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, the LED lamp panel is by multiple
LED lamp bead forms, and arrangement mode of each LED lamp bead in LED lamp panel is：Connected in a row, respectively per several LED lamp beads
It is connected in parallel between row LED lamp bead.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, the rotary switch includes PWM
Controller, the PWM controller are pulse width modulating signal controller, and PWM controller adjusts the working power master of LED lamp panel
Frequently, and the conducting pulsewidth of LED lamp panel operating voltage is controlled, so as to ensure that each LED lamp bead in LED lamp panel switchs in adjusting knob
During the characteristics of luminescence it is stable, illumination effect is consistent.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, also include in LED illuminating circuits
Controlling switch, the controlling switch are connected between power supply and LED lamp panel, control the conducting and disconnection of whole LED illuminating circuits.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, set on the bottom surface of the housing
There is heat emission hole, the heat emission hole is distributed in and the metal conducting strip opposed area.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, the metal conducting strip is aluminium
Base copper-clad plate.
Further, in the adjustable calligraphy practicing device of brightness described in the utility model, for making the panel that writes
Makrolon based light scattering material, its mist degree are more than 90%, and light transmittance is more than 80%.
The beneficial effects of the utility model：
1st, in the adjustable calligraphy practicing device of brightness of the present invention, luminescence component is placed under the panel that writes, and is improved calligraphy and is faced
The brightness of copybook when imitating, in luminescence component, rotary switch and LED lamp panel are connected into LED illuminating circuits loop, can be at any time
The electric current in illuminating circuit loop at LED lamp panel is adjusted so as to adjust the intensity of illumination of LED lamp panel；So as to according to ambient light
According to intensity, intensity of illumination needed for drills to improve one's handwriting is adjusted, you can protection eyesight can realize energy-conservation again.
2nd, in the adjustable calligraphy practicing device of brightness of the present invention, the lamp bead arrangement mode in LED lamp panel is：Per several
LED lamp bead is connected in a row, is connected in parallel between each row LED lamp bead, such arrangement form, can not only be increased uniform illumination
Property；More importantly improve the reliability of luminescence component, avoid because the damage of lamp bead and caused by whole device can not use.
3rd, in the adjustable calligraphy practicing device of brightness of the present invention, rotary switch includes PWM controller, PWM controller regulation
The working power dominant frequency of LED lamp panel, the conducting pulsewidth of LED lamp panel operating voltage is controlled, so as to ensure each LED in LED lamp panel
The characteristics of luminescence of lamp bead occurs without significant difference, LED lamp panel brightness stability；Ensure the uniformity and uniform illumination of illuminating effect
Degree；Overcome in common calligraphy practicing device, when lamp bead quantity is more in LED lamp panel, using analog signal control model, resist
Making an uproar property is poor, and light-source brightness is unstable, the defects of deteriorated vision.
4th, in the adjustable calligraphy practicing device of brightness of the present invention, the upper surface for the panel that writes closely pastes a strata acid imide
Material light filter film, the blue light in the light of LED lamp panel transmitting can be filtered out, blue light less than 20% can be reduced to, substantially reduced
Injury of the blue light to human eye, to ensure the comfort level of eyes.
5th, in the adjustable calligraphy practicing device of brightness of the present invention, the metal conducting strip in luminescence component is good for heat dispersion
Aluminum-based copper-clad plate, the bottom surface of housing is provided with heat emission hole, and heat emission hole is distributed in and metal conducting strip opposed area, such knot
Structure designs, and improves radiating efficiency to greatest extent, ensures the security of whole device, extends the service life of luminescence component.
6th, in the adjustable calligraphy practicing device of brightness of the present invention, the panel that writes is makrolon based light scattering material, its mist
Degree is more than 90%, and light transmittance is more than 80%, and point, line source can be changed into line, area source by makrolon based light scattering material,
Under high light transmittance, light is irradiated on copybook, more uniformly, soft not dazzling.
The utility model is described in further details below with reference to drawings and Examples.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the adjustable calligraphy practicing device of brightness.
Fig. 2 is the part-structure schematic diagram of luminescence component in the adjustable writing practising device of brightness.
Fig. 3 is LED illuminating circuit schematic diagrames in the adjustable writing practising device of brightness.
Fig. 4 is the linear array schematic diagram of LED lamp bead in LED lamp panel in the adjustable writing practising device of brightness.
Fig. 5 is the rounded projections arranged schematic diagram of LED lamp bead in LED lamp panel in the adjustable writing practising device of brightness.
In figure：1st, housing；2nd, write panel；3rd, light filter film；4th, rotary switch；5th, attaching plug；6th, LED lamp panel；7、
LED wafer；8th, metal conducting strip；9th, PWM controller；10th, controlling switch.
Embodiment
For the technological means and effect that the utility model is reached predetermined purpose and taken is expanded on further, below in conjunction with accompanying drawing
And embodiment describes in detail as follows to specific embodiment of the present utility model, architectural feature and its effect.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.
Term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or removable
Connection is unloaded, or is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, can also be in
Between medium be indirectly connected, can be the connection of two element internals.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the invention.
Embodiment 1：
In order to solve, light-source brightness present in existing calligraphy practicing device technology is immutable, the efficiency of light energy utilization is low, light
According to intensity is unstable is injured to human eye the problem of big, it is adjustable that the utility model provides a kind of brightness as shown in Fig. 1~Fig. 2
Calligraphy practicing device, including housing 1, write panel 2 and luminescence component, the upper surface of housing 1 is three-back-shaped, is write in panel 2
Build-in is scheduled on the middle position of the top surface of housing 1, and luminescence component is embedded in inside housing 1, and luminescence component is located at the back of the body for the panel 2 that writes
Face (one side away from user), and the light-emitting area of luminescence component is towards the panel 2 that writes, to be the panel supplement light that writes.
The panel 2 that writes is makrolon based light scattering material, and its mist degree is more than 90%, and light transmittance is more than 80%.Poly- carbonic acid
Point, line source can be changed into line, area source by ester group light-scattering material, and under high light transmittance, light is irradiated on copybook, more
Add uniformly, it is soft not dazzling.
In the present embodiment, the size of panel 2 of writing is 0.21m × 0.297m.The Sidewall Height of housing 1 is 18mm.Simulation examination
Verify bright, in the case where height is 18mm, lighting effect is good and shaded area minimum.
The write front (towards the one side of user) of panel 2 closely pastes one layer of light filter film 3, and light filter film 3 is poly-
Acid imide material, the blue light in light for filtering out the transmitting of LED lamp panel 6.Polyimide material light filter film can filter out LED
Blue light in the light of plate transmitting, is reduced to less than 20% by blue light, injury of the blue light to human eye is substantially reduced, to ensure eyes
Comfort level.
Luminescence component includes LED lamp panel 6, metal conducting strip 8 and rotary switch 4, and metal conducting strip 8 is by being conductively connected post
It is fixedly mounted on the bottom surface of housing 1, LED lamp panel 6 is fixedly mounted on the upper surface of metal conducting strip 8 by heat-conducting glue.
Metal conducting strip 8 is aluminum-based copper-clad plate, and the bottom surface of housing 1 is provided with heat emission hole, and heat emission hole is distributed in leads with metal
The opposed area of backing 8.Metal conducting strip is aluminum-based copper-clad plate, using aluminium alloy, the processability of aluminium alloy and surface treatment all compared with
It is easily and simple, and its cost is relatively low, and cost is greatly reduced on the premise of proper heat reduction function is ensured.Thermally conductive sheet is with dissipating
The relative structure design of hot hole, convection efficiency is improved, radiating efficiency is improved to greatest extent, ensures the security of whole device.
Rotary switch 4 is connected into LED illuminating circuits loop with LED lamp panel 6, and rotary switch 4 includes the adjustable current potential of resistance
Device is strong so as to adjust the illumination of LED lamp panel 6 and then the electric current adjusted in illuminating circuit loop at LED lamp panel 6 by changing resistance
Degree.
Potentiometer purchase model commonly used in the art is applicable, and specifically precision potentiator RV24 is selected in the present embodiment.
In the adjustable calligraphy practicing device of brightness of the present invention, luminescence component is placed under the panel that writes, and improves calligraphic copying
When copybook brightness, in luminescence components, rotary switch and LED lamp panel are connected into LED illuminating circuits loop, can be adjusted at any time
Electric current in illuminating circuit loop at LED lamp panel is so as to adjusting the intensity of illumination of LED lamp panel；It is strong so as to be shone according to ambient light
Degree, adjust intensity of illumination needed for drills to improve one's handwriting, you can protection eyesight can realize energy-conservation again.
The circuit connecting relation of LED illuminating circuits is as shown in figure 3, rotary switch 4 includes PWM controller 9, PWM controller
For pulse width modulating signal controller, PWM controller 9 adjusts the working power dominant frequency of LED lamp panel 6, and controls LED lamp panel 6
The conducting pulsewidth of operating voltage, so as to ensure that each LED lamp bead 7 characteristics of luminescence during regulation is stable in LED lamp panel 6, lights
Effect is consistent.
Regulate and control through PWM controller, the characteristics of luminescence of each LED lamp bead occurs without significant difference in luminescence component, ensures
The uniformity and uniform illumination degree of illuminating effect；Overcome in common calligraphy practicing device, lamp bead quantity is more in LED lamp panel
When, using analog signal control model, noise immunity is poor, and light-source brightness is unstable, the defects of deteriorated vision.
It is applicable that PWM controller chooses model commonly used in the art, and PWM controller TL2842P is selected in the present embodiment.
LED lamp panel 6 is made up of multiple LED lamp beads 7, and each LED lamp bead 7 arrangement mode in LED lamp panel 6 is：Per several LED lamp beads 7
Series connection in a row, is connected in parallel between each row LED lamp bead 7.
The finished product direct-assembling of type commonly used in the art can be selected in LED lamp panel in this calligraphy practicing device, or arbitrarily
The LED lamp bead of selection suitable types is assembled.3528 SMD lamp beads are selected in the present embodiment, specifically, wherein each
The size of LED lamp bead：3.5mm length × 2.8mm is wide × and 1.9mm is high, power：0.06W, operating temperature：It is -40~80 DEG C, reversely electric
Pressure：5V, pulse current 100mA, pulse width 0.1ms, dutycycle 1/10.Every 30~40 lamp beads of row in LED lamp panel, one is shared
50~70 rows.
LED lamp bead arrangement form in LED lamp panel is linear or triangle, and specific spread pattern is as shown in Figure 4.It is such
Arrangement form, it ensure that the distance between each lamp bead spot light is basically identical, illumination uniformity can be increased；More importantly
The reliability of luminescence component can be improved, avoid because the damage of lamp bead and caused by whole device can not use.
Also include controlling switch 10 in LED illuminating circuits, controlling switch 10 is connected between power supply and LED lamp panel 6, control
The conducting and disconnection of whole LED illuminating circuits.Attaching plug 5 is provided with the side wall of housing 1.Attaching plug connects standard household AC electrical
Source powers for calligraphy practicing device.
The course of work of this calligraphy practicing device：
In the case of illumination deficiency or dysphotia, the model to be copied and blank are learnt to write by tracing over characters printed in red into paper successively under
Spread out on and, open controlling switch, luminescence component switches on power, and the LED lamp bead in LED lamp panel starts to light, through PWM controller
After modulation, the brightness uniformity of each lamp bead, stably.
Point, line source are changed into line, area source by light through the panel that writes, and under high light transmittance, light is irradiated to word
It is more uniformly, soft not dazzling on note.
Light eventually passes through the light filter film of the upper surface for the panel that writes, and filters out the blue light in light, is irradiated on copybook.
Become apparent from the content on model, can shines the content through paper of learning to write by tracing over characters printed in red with pen after model and paper of learning to write by tracing over characters printed in red are fixed
Copied.The present apparatus is simple in construction, easy to use, environment protection health, has a very strong practicality, and the eyesight that is particularly suitable for use in is weaker
Colony make the fine arts, calligraphy etc. copy used in, there is very strong generalization.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (6)
1. a kind of adjustable calligraphy practicing device of brightness, including housing (1), the panel that writes (2) and luminescence component, the housing
(1) upper surface is three-back-shaped, and the panel that writes (2) is embedded in the middle position of the housing (1) top surface；It is characterized in that：
The luminescence component is fixed on the housing (1) inside and the back side for panel (2) of being write described in, and luminescence component
Light-emitting area towards the panel that writes (2), to be the panel that writes (2) supplement light；
The panel that writes (2) is made up of makrolon based light scattering material；
The front of the panel that writes (2) pastes light filter film (3) made of one layer of polyimide material, for filtering out in light
Blue light；
The Sidewall Height of the housing (1) is 18mm, to realize minimum shaded area, reduces and light is blocked；
The luminescence component includes LED lamp panel (6), metal conducting strip (8) and rotary switch (4), and the metal conducting strip (8) is solid
On the bottom surface of the housing (1), the LED lamp panel (6) is fixedly mounted on the upper table of the metal conducting strip (8) for Dingan County
Face；The rotary switch (4) is connected into LED illuminating circuits loop with LED lamp panel (6), for adjusting LED in illuminating circuit loop
The electric current at lamp plate (6) place is so as to adjusting the intensity of illumination of LED lamp panel (6).
2. the adjustable calligraphy practicing device of brightness according to claim 1, it is characterised in that the LED lamp panel (6) is by more
Individual LED lamp bead (7) composition, arrangement mode of each LED lamp bead (7) in LED lamp panel (6) are：Per several LED lamp beads
(7) series connection in a row, is connected in parallel between each row LED lamp bead (7).
3. the adjustable calligraphy practicing device of brightness according to claim 1, it is characterised in that rotary switch (4) bag
PWM controller (9) is included, the PWM controller (9) is pulse width modulating signal controller, and PWM controller (9) adjusts LED
The working power dominant frequency of plate (6), and the conducting pulsewidth of LED lamp panel (6) operating voltage is controlled, it is each in LED lamp panel (6) so as to ensure
LED lamp bead (7) characteristics of luminescence during adjusting knob switchs (4) is stable, and illumination effect is consistent.
4. the adjustable calligraphy practicing device of brightness according to claim 1, it is characterised in that also wrapped in LED illuminating circuits
Controlling switch (10) is included, the controlling switch (10) is connected between power supply and LED lamp panel (6), controls whole LED illuminating circuits
Conducting and disconnection.
5. the adjustable calligraphy practicing device of brightness according to any one of Claims 1 to 4, it is characterised in that the housing
(1) bottom surface is provided with heat emission hole, and the heat emission hole is distributed in and the metal conducting strip (8) opposed area.
6. the adjustable calligraphy practicing device of brightness according to claim 5, it is characterised in that the metal conducting strip (8)
For aluminum-based copper-clad plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720744129.2U CN207094328U (en) | 2017-06-23 | 2017-06-23 | A kind of adjustable calligraphy practicing device of brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720744129.2U CN207094328U (en) | 2017-06-23 | 2017-06-23 | A kind of adjustable calligraphy practicing device of brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207094328U true CN207094328U (en) | 2018-03-13 |
Family
ID=61553803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720744129.2U Expired - Fee Related CN207094328U (en) | 2017-06-23 | 2017-06-23 | A kind of adjustable calligraphy practicing device of brightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207094328U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599006A (en) * | 2018-12-18 | 2019-04-09 | 罗芝柳 | A kind of letter training lattice, handwriting practicing apparatus and calligraphy practice method |
| CN112102795A (en) * | 2019-06-17 | 2020-12-18 | 广东汇诚科技有限公司 | Intelligent calligraphy display screen brightness adjusting method and device and readable storage medium |
-
2017
- 2017-06-23 CN CN201720744129.2U patent/CN207094328U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599006A (en) * | 2018-12-18 | 2019-04-09 | 罗芝柳 | A kind of letter training lattice, handwriting practicing apparatus and calligraphy practice method |
| CN112102795A (en) * | 2019-06-17 | 2020-12-18 | 广东汇诚科技有限公司 | Intelligent calligraphy display screen brightness adjusting method and device and readable storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20180623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |