CN108803204A - The operating method of projector and projector - Google Patents
The operating method of projector and projector Download PDFInfo
- Publication number
- CN108803204A CN108803204A CN201710295846.6A CN201710295846A CN108803204A CN 108803204 A CN108803204 A CN 108803204A CN 201710295846 A CN201710295846 A CN 201710295846A CN 108803204 A CN108803204 A CN 108803204A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- filter
- optical signal
- projector
- minitype reflector
- 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.)
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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
- G03B21/142—Adjusting of projection optics
-
- 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
- G03B21/206—Control of light source other than position or intensity
-
- 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
- G03B21/2066—Reflectors in illumination beam
-
- 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
- G03B21/208—Homogenising, shaping of the illumination light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The present invention provides the operating method of a kind of projector and projector, which includes：One input unit, to receive an input signal；One digital minitype reflector, treated reflecting a lens group optical signal；One filter；One camera lens；One motor couples above-mentioned filter；An and controller, to when receiving above-mentioned input signal, said motor is controlled so that above-mentioned filter to be moved between above-mentioned digital minitype reflector and above-mentioned camera lens, cause above-mentioned filter to filter out the part with a particular range of wavelengths in the above-mentioned optical signal reflected by above-mentioned digital minitype reflector, and the optical signal after above-mentioned filter filters out is sent to by a projection screen by above-mentioned camera lens.
Description
Technical field
The present invention relates to a kind of shadow casting techniques of projector, more particularly to by the light of specific band wavelength in a projector
A kind of shadow casting technique that line filters out.
Background technology
At present user using electronic device (such as：3C Product) chance is more and more, the indigo plant wherein shown by 3C Product
Light partly belongs to a kind of wave band of high-energy.If user is used for a long time 3C Product and is easy so that the eyes of user are hindered
Evil.
Smart mobile phone, LCD screen and LCD TV at present, suchlike electronic device, which all has, filters out blue light
Function, only projector are not equipped with this function.In addition to this, brightness ratio smart mobile phone, LCD screen and the liquid crystal of projector
The brightness of TV is also high.Therefore, projector should more need to increase a kind of function filtering out blue light with protect eyes.
Invention content
In order to solve the problems, such as this, the present invention provides a kind of projector, and the filtering for filtering out blue light is added in its projection path
Device, to filter out the blue light in external environment.
The present invention provides a kind of projector, including：One input unit, to receive an input signal；One digital micro is anti-
Mirror is penetrated, treated reflecting a lens group optical signal；One filter；One camera lens；One motor couples above-mentioned filter；
And a controller, to when receiving above-mentioned input signal, control said motor is above-mentioned above-mentioned filter to be moved to
Between digital minitype reflector and above-mentioned camera lens, cause above-mentioned filter filter out reflected by above-mentioned digital minitype reflector it is upper
The part with a particular range of wavelengths in optical signal is stated, and by above-mentioned camera lens by the light after above-mentioned filter filters out
Signal is sent to a projection screen.
The present invention provides a kind of operating method of projector, which includes an input unit, digital micro reflection
Mirror, a filter, a camera lens, a motor, multiple lens groups and a controller, the operating method step include：It receives and
From an input signal of above-mentioned input unit；According to received above-mentioned input signal, control said motor is with by above-mentioned filter
Wave device is moved between above-mentioned digital minitype reflector and above-mentioned camera lens；And it is filtered out by above-mentioned filter micro- by above-mentioned number
Part with a particular range of wavelengths in the optical signal that type speculum is reflected, wherein above-mentioned optical signals said lens group
It is handled and be sent to above-mentioned digital minitype reflector；Optical signal after being filtered out above-mentioned filter by above-mentioned camera lens is sent to
One projection screen.
Description of the drawings
Fig. 1 is the block diagram of the projector and a projection screen in the embodiment of the present invention；
Fig. 2 is the block diagram of the lens group in the embodiment of the present invention；
Fig. 3 is the flow chart of the projector in the embodiment of the present invention.
Reference sign：
100~projector, 102~light bulb
104~lens group, 1041~infrared light/ultraviolet filter
1042~colour wheel, 1043~integration rod
1044~relay lens, 106~digital minitype reflector
108~filter, 110~camera lens
112~input unit, 114~controller
116~motor, 118~projection screen
S1, S2~optical signal S10, S20, S30~step
Specific implementation mode
Features described above and advantage to enable the present invention are clearer and more comprehensible, special embodiment below, and institute's attached drawing is coordinated to make
Detailed description are as follows.
Fig. 1 is the block diagram of the projector 100 and a projection screen 118 in the embodiment of the present invention.As shown in Figure 1,
Projector 100 include a light bulb 102, a lens group 104, a digital minitype reflector 106, a filter 108, a camera lens 110,
One input unit 112, a controller 114 and a motor 116.
Light bulb 102 is as an optical signal and emitting optical signal to the lens group 104 of projector 100.In institute of the present invention
In another embodiment stated, light bulb 102 is emitting an optical signal to the lens group 104 and input unit of projector 100
112.Lens group 104 is by one infrared light/ultraviolet filter 1041, color wheel 1042, an integration rod 1043 and one relaying
Lens 1044 are formed, infrared light/ultraviolet filter 1041, colour wheel 1042, integration rod 1043 and relay lens 1044
Connection relation is as described in Figure 2, therefore the present invention is not illustrated herein.
Digital minitype reflector 106 comes from treated the optical signal of lens group 104 and will treated light letter to receive
Number S2 is sent to filter 108 or camera lens 110.Filter 108 is filtering out the part of a particular range of wavelengths in optical signal.?
In an embodiment of the present invention, filter 108 is filter out the blue light that wave-length coverage is 380 nanometers -480 nanometers one
Blue filter.
Camera lens 110 is used so that the optical signal after filtering out is sent to projection screen 118 by camera lens 110.Input unit 112
To receive an input signal.In an embodiment of the present invention, input unit 112 is the entity in projector 100
Button, in this embodiment, input signal are to press a pressing signal caused by entity button by user.
In certain embodiments of the present invention, controller 114 can be integrated into a processor, and processor can be a single place
Manage device or multiple processors.For example, processor may include the combination of general service microprocessor, special purpose processors
And/or related chip group.The example of the combination of general service microprocessor and special purpose processors is instruction set processor
(instruction-set processor), graphics processor, video processor, message processor and/or the micro- place of specific use
Manage device.The function of processor is mainly to provide execution, program, user's graphical interfaces, software, module, application program and projection
Processing capacity needed for the function of machine 100.Motor 116 is driving certain electronic components in projector 100.In institute of the present invention
In the embodiment stated, it is anti-that motor 116 is moved to digital micro after receiving the control signal of controller 114, by filter 108
It penetrates between mirror 106 and camera lens 110.
Fig. 2 is the block diagram of the lens group 104 in the embodiment of the present invention.As shown in Fig. 2, infrared light/ultraviolet filtering
Device 1041 is set between light bulb 102 and colour wheel 1042, to filter out ultraviolet light in the optical signal from light bulb 102 and red
Outer light.Colour wheel 1042 is set between infrared light/ultraviolet filter 1041 and integration rod 1043, to will be through infrared light/purple
Outer optical filter 1041 filter out after optical signal color separation and focus in integration rod 1043.Integration rod 1043 is set to colour wheel 1042
Between relay lens 1044, the optical signal after color separation to be homogenized.Relay lens 1044 be set to integration rod 1043 with
Between digital minitype reflector 106, to by after the optical signal amplification after the homogenization in the integration rod 1043 using as a processing
Optical signal S2 afterwards, and optical signal S2 is sent to digital minitype reflector 106 by treated.
In certain embodiments of the present invention, light bulb 102, lens group 104 (infrared light/ultraviolet filter 1041, colour wheel
1042, integration rod 1043, relay lens 1044), digital minitype reflector 106, filter 108 and projection screen 118 sequentially
Arrangement is to form a projection path.In other some embodiments, the light bulb 102, (infrared light/ultraviolet filter of lens group 104
1041, colour wheel 1042, integration rod 1043, relay lens 1044), digital minitype reflector 106, filter 108 and projection screen
Putting in order for curtain 118 also can suitably change on demand.In this projection path, the optical signal S1 warps from light bulb 102
It crosses after lens group 104 is handled to reflex to filter 108 through digital minitype reflector 106 as optical signal S2, optical signal S2, filter
Wave device 108 filters out the part with a particular range of wavelengths in the optical signal reflected by digital minitype reflector 106, and leads to
It crosses the optical signal after camera lens 110 filters out filtered device 108 and is sent to projection screen 118.In certain implementations of the present invention
In example, filter 108 can be a blue filter.
Fig. 3 is the flow chart of the projector 100 in the embodiment of the present invention.First, in step slo, controller 114 is sentenced
It is disconnected whether to receive the input signal from input unit 112.In an embodiment of the present invention, input signal can serve as reasons
Produced by one user presses entity button, input unit can be the entity button in projector 100.If controller 114 is sentenced
Disconnected no any input signal of the reception from input unit 112, then enter step S20.In step S20, light bulb 102 is come from
Optical signal S1 after the processing of lens group 104 using as optical signal S2, optical signal S2 is reflected through digital minitype reflector 106
Afterwards, it is directly sent on projection screen 118 by camera lens 110.If the judgement of controller 114 has reception from input unit 112
Input signal then enters step S30.In step s 30, controller 114 controls motor 116 so that filter 108 is moved to number
Between word minitype reflector 106 and camera lens 110, filter 108 is caused to filter out the light letter reflected by digital minitype reflector 106
Part with a particular range of wavelengths in number, and the optical signal transmission after being filtered out filtered device 108 by camera lens 110
To projection screen 118.In an embodiment of the present invention, blue light include the blue violet light of 380 nanometers -440 nanometers of wavelength with
And the blue light of 440 nanometers -480 nanometers of wavelength.In an embodiment of the present invention, the optical signal from light bulb 102
Intensity is more than 100 nits (nit), and filter 108 can be a blue filter, the optical signal for only allowing wavelength to be more than 440 nanometers
(retain blue light) passes through, and filters out the optical signal (filtering out all blue violet lights) with other wavelength, and camera lens 110 is by filtered device
108 filter out after optical signal be sent to projection screen 118.In another embodiment of the present invention, filter 108 can be one
Blue filter allows optical signal of the wavelength more than 440 nanometers by (retaining blue light), and wavelength is 428 nanometers -440 nanometers
Optical signal with a special ratios by (filtering out part blue violet light), filter out the optical signal with other wavelength, camera lens 110 will be through
Optical signal after wave filter 108 filters out is sent to projection screen 118, and wherein special ratios are the material institutes by filter 108
It determines.In another embodiment of the present invention, filter 108 can be a feux rouges filter, suchlike filter, but
Invention is not limited thereto.
In conclusion projector 100 can be according to the decision of user with it is determined whether to enable filter out blue light in projector 100
Function, injured by high energy blue light to avoid the eyes of user.
It is above to implement to be merely illustrative of the technical solution of the present invention rather than be limited, the ordinary skill people of this field
Member can be modified or replaced equivalently technical scheme of the present invention, without departing from the spirit and scope of the present invention, this hair
Bright protection domain should be subject to described in claims.
Claims (10)
1. a kind of projector, including：
One input unit, to receive an input signal；
One digital minitype reflector, treated reflecting a lens group optical signal；
One filter；
One camera lens；
One motor couples above-mentioned filter；And
One controller, to when receiving above-mentioned input signal, control said motor is above-mentioned above-mentioned filter to be moved to
Between digital minitype reflector and above-mentioned camera lens, cause above-mentioned filter filter out reflected by above-mentioned digital minitype reflector it is upper
The part with a particular range of wavelengths in optical signal is stated, and by above-mentioned camera lens by the light after above-mentioned filter filters out
Signal is sent to a projection screen.
2. projector as described in claim 1, which is characterized in that when above controller does not receive above-mentioned input signal,
Treated that above-mentioned optical signal is directly sent to above-mentioned projection screen by above-mentioned camera lens for said lens group.
3. projector as described in claim 1, which is characterized in that above-mentioned filter be a blue filter, to filter out by
Blue light components in the above-mentioned optical signal that above-mentioned digital minitype reflector is reflected.
4. projector as described in claim 1, which is characterized in that said lens group include one infrared light/ultraviolet filter,
Color wheel, an integration rod, multiple relay lens.
5. projector as claimed in claim 4, which is characterized in that above-mentioned infrared light/ultraviolet filter is set to a light bulb
Between above-mentioned colour wheel, to filter out the ultraviolet light and infrared light in the optical signal from above-mentioned light bulb.
6. projector as claimed in claim 5, which is characterized in that above-mentioned colour wheel is set to above-mentioned infrared light/ultraviolet filtering
Between device and above-mentioned integration rod, by the optical signal color separation after above-mentioned infrared light/ultraviolet filter filters out and to focus to
In above-mentioned integration rod.
7. projector as claimed in claim 6, which is characterized in that above-mentioned integration rod be set to above-mentioned colour wheel among the above after saturating
Between mirror, the optical signal after color separation to be homogenized.
8. projector as claimed in claim 7, which is characterized in that above-mentioned relay lens is set to above-mentioned integration rod and above-mentioned number
Between word minitype reflector, to by after the optical signal amplification after being homogenized in above-mentioned integration rod using as above-mentioned optical signal,
And above-mentioned optical signal is sent to above-mentioned digital minitype reflector.
9. a kind of operating method of projector, the projector includes an input unit, a digital minitype reflector, a filtering
Device, a camera lens, a motor, multiple lens groups and a controller, the operating method step include：
Receive the input signal from above-mentioned input unit；
According to received above-mentioned input signal, control said motor is anti-above-mentioned filter is moved to above-mentioned digital micro
It penetrates between mirror and above-mentioned camera lens；
Being filtered out by above-mentioned filter has a specific wavelength model in the optical signal reflected by above-mentioned digital minitype reflector
The part enclosed, wherein above-mentioned optical signals said lens group is handled and is sent to above-mentioned digital minitype reflector；
Optical signal after being filtered out above-mentioned filter by above-mentioned camera lens is sent to a projection screen.
10. the operating method of projector as claimed in claim 9, which is characterized in that above-mentioned filter is a blue filter,
To filter out the blue light components in the above-mentioned optical signal reflected by above-mentioned digital minitype reflector, and said lens group includes
One infrared light/ultraviolet filter, color wheel, an integration rod, multiple relay lens, the operating method of above-mentioned projector are also wrapped
It includes：
The ultraviolet light and infrared light in the optical signal from a light bulb are filtered out by above-mentioned infrared light/ultraviolet filter；
By the optical signal color separation after above-mentioned infrared light/ultraviolet filter filters out and above-mentioned integral is focused to by above-mentioned colour wheel
In column；
The optical signal after color separation is homogenized by above-mentioned integration rod；
By above-mentioned relay lens by after the optical signal amplification after being homogenized in above-mentioned integration rod using as above-mentioned optical signal, and will
Above-mentioned optical signal is sent to above-mentioned digital minitype reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295846.6A CN108803204B (en) | 2017-04-28 | 2017-04-28 | Projector and operating method of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295846.6A CN108803204B (en) | 2017-04-28 | 2017-04-28 | Projector and operating method of projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108803204A true CN108803204A (en) | 2018-11-13 |
| CN108803204B CN108803204B (en) | 2021-03-12 |
Family
ID=64070384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710295846.6A Active CN108803204B (en) | 2017-04-28 | 2017-04-28 | Projector and operating method of projector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020114226A1 (en) * | 2018-12-07 | 2020-06-11 | 深圳光峰科技股份有限公司 | Light emitting device, display device and control method for light emitting device |
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| Publication number | Publication date |
|---|---|
| CN108803204B (en) | 2021-03-12 |
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