CN108957927A - A kind of office projection instrument - Google Patents
A kind of office projection instrument Download PDFInfo
- Publication number
- CN108957927A CN108957927A CN201810797238.XA CN201810797238A CN108957927A CN 108957927 A CN108957927 A CN 108957927A CN 201810797238 A CN201810797238 A CN 201810797238A CN 108957927 A CN108957927 A CN 108957927A
- Authority
- CN
- China
- Prior art keywords
- brightness value
- light bulb
- metal layer
- projection instrument
- input terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000004615 ingredient Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of office projection instrument, including light bulb, luminance sensor, controller and driving circuit, the luminance sensor is for detecting ambient brightness, the controller includes a control chip, the control chip includes memory module, determination module and control module, the input terminal of the output end connection memory module of the luminance sensor, the input terminal of the output end connection determination module of the memory module, the input terminal of the output end link control module of the determination module, the input terminal of the output end connection driving circuit of the control module.Good reliability of the present invention, intelligence degree are high, and the brightness and darkness of light bulb can be automatically adjusted according to ambient brightness, so as to play the role of saving light bulb, to improve the service life of light bulb.
Description
Technical field
The invention belongs to projection fields, and in particular to a kind of projector more particularly to a kind of office projection instrument.
Background technique
It is well known that projector is at work, the calorific value of light bulb is very big, temperature is very high, and high temperature is to influence to throw
The most fatal killer of shadow instrument bulb service life is typically equipped with fan and radiates to improve the service life of projector,
It further needs exist for using wind guiding component, to improve heat dissipation effect.
Its wind deflector of traditional wind guiding component is welded and fixed by attachment and ventilation housing, this one side of connection type
Face needs to convince by patient analysis two mold of aerofoil and ventilation housing, increases point welding process, process is cumbersome, causes cost, manpower and time
The waste of resource, on the other hand due to being to increase point welding process, it is possible to create it is difficult to increase quality control for desoldering risk.
In consideration of it, the present invention solves light bulb heating problem, to propose a kind of office from the Gen Ben of projector light bulb
The project to be studied of the projector present invention.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of office projection instrument, to solve existing projector light bulb
Fever leads to the problem of reducing projected lifetime for a long time.
To achieve the goals above, the invention adopts the following technical scheme: a kind of office projection instrument, including light bulb, brightness
Sensor, controller and driving circuit, the luminance sensor include a control for detecting ambient brightness, the controller
Chip, the control chip include memory module, determination module and control module, the output end connection of the luminance sensor
The input terminal of memory module, the input terminal of the output end connection determination module of the memory module, the output of the determination module
Hold the input terminal of link control module, the input terminal of the output end connection driving circuit of the control module；Wherein, storage unit
In be stored with a reasonable ambient brightness value L；
In the operating condition, the current environment brightness where the luminance sensor real-time detection projector, and will be current
Ambient brightness value L1 is sent to control chip, the determination module by current environment brightness value L1 and reasonable ambient brightness value L into
Row compares, if current environment brightness value L1 is less than or equal to 0.7 times of reasonable ambient brightness value L, controls chip according to first
The brightness value of empirical equation T1=L*35+L1*65 is sent to driving circuit to reduce the brightness value for adjusting light bulb；If current environment
Brightness value L 1 is greater than or equal to 1.3 times of reasonable ambient brightness value L, then controls chip according to the second empirical equation T2=L*60+
The brightness value of L1*40 is sent to driving circuit to increase the brightness value for adjusting light bulb.
As a further improvement of the present invention, the control chip uses TMSC5000 model chip.
As a further improvement of the present invention, inner metal layer is coated on the outer wall of the light bulb, the inner metal layer
Outside is equipped with outer metal layer, and the vapor chamber of vacuum, the inner wall of the vapor chamber are formed between the inner metal layer and outer metal layer
On be equipped with agglomerated powder end tube core, working fluid is filled in the vapor chamber.
As a further improvement of the present invention, the width of the inner metal layer is less than the length of light bulb.
As a further improvement of the present invention, the upper end of the inner metal layer is located at the lower end at light bulb largest outside diameter.
As a further improvement of the present invention, ceramic insulating layer is coated on the outside of the outer metal layer.
As a further improvement of the present invention, cooling fin is connected on the ceramic insulating layer.
As a further improvement of the present invention, the driving circuit is Voltag driving circuit.
Working principle and effect of the present invention are as follows:
The present invention relates to a kind of office projection instrument, the current environment brightness where luminance sensor real-time detection projector,
And current environment brightness value L1 is sent to control chip, determination module is by current environment brightness value L1 and reasonable ambient brightness value
L is compared, and the brightness of projector light bulb is adjusted according to the result after comparison, if projection environment inherently than darker, this
When, the darker picture that can also see projection clearly of bulb brightness then adjusts the darkness of light bulb at this time, if projection environment itself is brighter,
If light is weaker, it will lead to and not see projected picture, at this point, then adjusting bulb brightness.The present invention can control light bulb compared with
Under dark environment, the automatic brightness for reducing light bulb can not only improve bulb life, moreover it is possible to protect the eyes of user.
Good reliability of the present invention, intelligence degree are high, and the brightness and darkness of light bulb can be automatically adjusted according to ambient brightness,
So as to play the role of saving light bulb, to improve the service life of light bulb.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:
Attached drawing 1 is the schematic illustration of office projection of embodiment of the present invention instrument；
Attached drawing 2 is the schematic illustration that light bulb of the embodiment of the present invention is adjusted.
Specific embodiment
The present invention will be further illustrated in following example.These embodiments are merely to illustrate the present invention, but not to appoint
Where formula limitation is of the invention.
A kind of embodiment: office projection instrument
Referring to attached drawing 1-2, office projection instrument 1 includes light bulb 2, luminance sensor, controller and driving circuit.Wherein,
The driving circuit is Voltag driving circuit.
The luminance sensor includes a control chip for detecting ambient brightness, the controller, and control chip uses
TMSC5000 model chip.The control chip includes memory module, determination module and control module, the luminance sensor
Output end connection memory module input terminal, the memory module output end connection determination module input terminal, it is described to sentence
The input terminal of the output end link control module of cover half block, the input terminal of the output end connection driving circuit of the control module；
Wherein, a reasonable ambient brightness value L is stored in storage unit.
In the operating condition, the current environment brightness where the luminance sensor real-time detection projector, and will be current
Ambient brightness value L1 is sent to control chip, the determination module by current environment brightness value L1 and reasonable ambient brightness value L into
Row compares, if current environment brightness value L1 is less than or equal to 0.7 times of reasonable ambient brightness value L, controls chip according to first
The brightness value of empirical equation T1=L*35+L1*65 is sent to driving circuit to reduce the brightness value for adjusting light bulb 2；If working as front ring
Border brightness value L 1 is greater than or equal to 1.3 times of reasonable ambient brightness value L, then controls chip according to the second empirical equation T2=L*60
The brightness value of+L1*40 is sent to driving circuit to increase the brightness value for adjusting light bulb 2.
In the present embodiment, inner metal layer is coated on the outer wall of the light bulb 2, the outside of the inner metal layer is equipped with outer gold
Belong to layer, forms the vapor chamber of vacuum between the inner metal layer and outer metal layer, be equipped with sintering on the inner wall of the vapor chamber
Powder tube core, the vapor chamber is interior to be filled with working fluid.The width of the inner metal layer is less than the length of light bulb 2.In described
The upper end of metal layer is located at the lower end at 2 largest outside diameter of light bulb.Ceramic insulating layer is coated on the outside of the outer metal layer.It is described
Cooling fin is connected on ceramic insulating layer.
It should be noted that in the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or two with
On.
Here the combination of element, ingredient, component or step is described using term "comprising" or " comprising " it is also contemplated that
Substantially the embodiment being made of these elements, ingredient, component or step.Here by using term " can with ", it is intended to illustrate
Described any attribute that " can with " includes all is optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of benefit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part of theme.
The series of detailed descriptions listed above only for the application feasible embodiment specifically
Bright, they are not the protection scope to limit the application, all without departing from equivalent implementations made by the application skill spirit
Or change should be included within the scope of protection of this application.
Claims (8)
1. a kind of office projection instrument, it is characterised in that: described bright including light bulb, luminance sensor, controller and driving circuit
Degree sensor includes a control chip for detecting ambient brightness, the controller, and the control chip includes memory module, sentences
Cover half block and control module, the input terminal of the output end connection memory module of the luminance sensor, the memory module
Output end connects the input terminal of determination module, the input terminal of the output end link control module of the determination module, the control
The input terminal of the output end connection driving circuit of module；Wherein, a reasonable ambient brightness value L is stored in storage unit；
In the operating condition, the current environment brightness where the luminance sensor real-time detection projector, and by current environment
Brightness value L 1 is sent to control chip, and the determination module compares current environment brightness value L1 and reasonable ambient brightness value L
Compared with if reasonable ambient brightness value L of the current environment brightness value L1 less than or equal to 0.7 times, controls chip according to the first experience
The brightness value of formula T1=L*35+L1*65 is sent to driving circuit to reduce the brightness value for adjusting light bulb；If current environment brightness
Value L1 is greater than or equal to 1.3 times of reasonable ambient brightness value L, then controls chip according to the second empirical equation T2=L*60+L1*40
Brightness value be sent to driving circuit with increase adjust light bulb brightness value.
2. office projection instrument according to claim 1, it is characterised in that: the control chip uses TMSC5000 model core
Piece.
3. office projection instrument according to claim 1, it is characterised in that: be coated with interior metal on the outer wall of the light bulb
The outside of layer, the inner metal layer is equipped with outer metal layer, and the vapor chamber of vacuum is formed between the inner metal layer and outer metal layer,
It is equipped with agglomerated powder end tube core on the inner wall of the vapor chamber, is filled with working fluid in the vapor chamber.
4. office projection instrument according to claim 3, it is characterised in that: the width of the inner metal layer is less than the length of light bulb
Degree.
5. office projection instrument according to claim 4, it is characterised in that: the upper end of the inner metal layer is located at light bulb outer diameter
The lower end of maximum.
6. office projection instrument according to claim 3, it is characterised in that: be coated on the outside of the outer metal layer ceramic exhausted
Edge layer.
7. office projection instrument according to claim 6, it is characterised in that: be connected with cooling fin on the ceramic insulating layer.
8. -7 any office projection instrument according to claim 1, it is characterised in that: the driving circuit is voltage driving electricity
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797238.XA CN108957927A (en) | 2018-07-19 | 2018-07-19 | A kind of office projection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797238.XA CN108957927A (en) | 2018-07-19 | 2018-07-19 | A kind of office projection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108957927A true CN108957927A (en) | 2018-12-07 |
Family
ID=64497867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810797238.XA Pending CN108957927A (en) | 2018-07-19 | 2018-07-19 | A kind of office projection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108957927A (en) |
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| CN101770151A (en) * | 2009-06-22 | 2010-07-07 | 惠州市华阳多媒体电子有限公司 | Luminance regulating system for miniature projector |
| KR20100097445A (en) * | 2009-02-26 | 2010-09-03 | 유니스트림 주식회사 | Apparatus for controlling brighting lamp of prpjector |
| CN201576161U (en) * | 2010-03-17 | 2010-09-08 | 飞利浦电子技术(上海)有限公司 | Projector |
| KR20120029246A (en) * | 2010-09-16 | 2012-03-26 | 용인송담대학 산학협력단 | Apparatus and method of controlling brightness of lamp in a projector automatically |
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| CN105278219A (en) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | A projector |
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| CN105278220A (en) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | A projector with a heat dissipation bulb socket |
| CN105278222A (en) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | An air-cooled and water-cooled projector |
| CN105334685A (en) * | 2015-11-19 | 2016-02-17 | 华蓥市双河第三小学 | Projector bulb |
| CN107305312A (en) * | 2016-04-18 | 2017-10-31 | 扬明光学股份有限公司 | Projection brightness and the automatic adjustment system and method for contrast |
| CN107422593A (en) * | 2016-05-24 | 2017-12-01 | 仁宝电脑工业股份有限公司 | The control method of Intelligent lightening device |
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2018
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| KR20100097445A (en) * | 2009-02-26 | 2010-09-03 | 유니스트림 주식회사 | Apparatus for controlling brighting lamp of prpjector |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |