CN107037680B - Optical projection system - Google Patents
Optical projection system Download PDFInfo
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- CN107037680B CN107037680B CN201710319057.1A CN201710319057A CN107037680B CN 107037680 B CN107037680 B CN 107037680B CN 201710319057 A CN201710319057 A CN 201710319057A CN 107037680 B CN107037680 B CN 107037680B
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- 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
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Astronomy & Astrophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of optical projection system, including main light source, compensatory light and color block component, the main light source is for issuing the first coloured light, the compensatory light is for issuing the second coloured light, the color block component includes the first filter area, first filter area is formed by plated film, first coloured light and second coloured light while incident first filter area, first coloured light obtains the third coloured light after first filter area, second coloured light obtains the 4th coloured light after first filter area, the third coloured light and the 4th Colored light mixing obtain the 5th coloured light, the wavelength of 5th coloured light is located in the wavelength of the third coloured light and the wave-length coverage of the 4th coloured light, so, the third coloured light and the 4th Colored light mixing are obtained the 5th coloured light of required chromaticity coordinates by the present invention, reach the modulation effect of pure color, and, the present invention is by double light sources, color block component Cooperate the filtering functions of coating designs to realize and obtain the required coloured light of imaging, structure is simple, at low cost.
Description
Technical field
The present invention describes a kind of optical projection system, the optical projection system of espespecially a kind of wavelength by compensatory light adjustment light.
Background technique
Optical projection system is a kind of equipment that can be projected image or video on screen, can pass through different interfaces
Same computer, VCD, DVD, BD, game machine, DV etc., which are connected, plays corresponding vision signal, reaches the Projection Display of large screen
Mode provides viewer splendid presentation and visual effect.With the continuous development of electronic technology, optical projection system is widely used in
In education, business and family.
Present shadow casting technique is also updating iteration, and traditional bulb source colour gamut is low, therefore this new light sources of laser remove
It solves the problems, such as other than the service life, also strengthens the performance of optical projection system color simultaneously, that is, improve the performance of colour gamut.
Laser projection system is compared with the mode for mostly using blue laser mixed fluorescent powder colour wheel at present, such mode cost compared with
It is low.But the mode of this blue laser mixed fluorescent powder colour wheel will appear such problems: the blue that blue laser issues swashs
The slightly short 2-6 nanometer of the wavelength of light, " color is partially purple " of the blue laser being commonly called as, so that this laser projection system is thrown
Although it is high that colour gamut numerical value occurs in the picture of shadow, the bad problem of the quasi- effect of color, to influence image quality.
Therefore, it is necessary to a kind of new optical projection system be designed, to overcome drawbacks described above.
Summary of the invention
The purpose of the present invention is to provide a kind of optical projection system, can by the wavelength of compensation light adjustment light, with improve at
As quality.
In order to achieve the above object, the present invention provides a kind of optical projection system, include:
Main light source, for issuing the first coloured light, which has first wave length；
Compensatory light, for issue the second coloured light, second coloured light have second wave length, the second wave length different from this first
Wavelength；
Color block component is set on the transmission path of first coloured light and second coloured light, which includes first
Filter area, first filter area are formed by plated film, first coloured light and second coloured light while incident first filter area, should
First coloured light obtains third coloured light after first filter area, which obtains the 4th color after first filter area
Light, the wavelength of the 4th coloured light is different from the wavelength of the third coloured light, and the 4th coloured light wavelength is between the second coloured light wavelength and third color
Between optical wavelength；
Wherein, the third coloured light and the 4th coloured light are projected from the color block component simultaneously, the third coloured light and the 4th color
Light is mixed to get the 5th coloured light, the wavelength of the 5th coloured light between the third coloured light wavelength and the 4th coloured light wavelength it
Between.
Preferably, plated film is somebody's turn to do the transmitance of the 4th coloured light with what is be emitted from first filter area on first filter area
The intensity of 4th coloured light is corresponding, when transmitance of the plated film to the 4th coloured light is high, is somebody's turn to do from what first filter area was emitted
The intensity of 4th light is high, when transmitance of the plated film to the 4th coloured light is low, from the 4th light of first filter area outgoing
Intensity it is low.
Preferably, further including control device, which can be by controlling the output power of the main light source respectively and being somebody's turn to do
The output power of compensatory light controls the intensity of first coloured light and second coloured light, so control the third coloured light and
The intensity of 4th coloured light.
Preferably, the third coloured light is blue light, the 4th coloured light is green light.
Preferably, the coordinate of the 5th coloured light meets following range: 0.14≤Xb≤0.15,0.04≤Yb≤0.09,
In, for the 5th coloured light of Xb in the X axis coordinate of chromatic graph degree, Yb is the 5th coloured light in the Y axis coordinate of the chromatic diagram.
Preferably, first filter area has blue plated film and green plated film, pass through for blue light and green light.
Preferably, the color block component further includes the second filter area and third filter area, first coloured light and second coloured light
Incident second filter area, obtains the 4th coloured light, and first coloured light and the incident third filter area of second coloured light obtain the 6th
Coloured light, the 6th coloured light wavelength are greater than the second coloured light wavelength, and the 4th coloured light and the 6th Colored light mixing obtain second coloured light.
Preferably, further including control device, when second filter area is located at the transmitting of first coloured light and second coloured light
When on path, which controls the intensity of second coloured light by controlling the power of the compensatory light, and then controls certainly
The intensity for the 4th coloured light that second filter area projects, when the third filter area is located at first coloured light and second coloured light
When on transmission path, which controls the intensity of second coloured light by controlling the power of the compensatory light, and then controls
Make the intensity of the 6th coloured light projected from the third filter area.
Preferably, the 4th coloured light, the 5th coloured light and the 6th Colored light mixing obtain white light.
Preferably, the main light source is monochromatic source and is the blue-light source, which is monochromatic source and is yellow
Light source.
It compares with the prior art, the present invention provides a kind of optical projection system, including main light source, compensatory light and colour wheel group
Part, the main light source filter for issuing the second coloured light, the color block component including first for issuing the first coloured light, the compensatory light
Area, first filter area are formed by plated film, and first coloured light and second coloured light while incident first filter area, this first
Coloured light obtains the third coloured light after first filter area, which obtains the 4th coloured light after first filter area,
The third coloured light and the 4th Colored light mixing obtain the 5th coloured light, the wavelength of the 5th coloured light be located at the wavelength of the third coloured light with
In the wave-length coverage of 4th coloured light, in this way, the present invention compensates the third coloured light by the 4th coloured light, wavelength is obtained between this
The 5th coloured light in the wave-length coverage of the wavelength of third coloured light and the 4th coloured light adjusts to obtain required wavelength by compensation light
The 5th coloured light, namely obtained the 5th coloured light of required chromaticity coordinates, reached the modulation effect of pure color, improved color quasi- effect
The quality of fruit and imaging；Also, the present invention realizes needed for obtaining imaging by the filtering functions of double light sources collocation color block component
Coloured light, coloured light needed for obtaining imaging compared to the design by three light sources, the present invention can reduce by a light source, decrease
Corresponding optical element, structure is simple, volume-diminished and cost reduce；In addition, the present invention is by plated film on color block component with mistake
Filter obtains required coloured light, and compared to exciting to obtain required coloured light by fluorescent powder, cost of the present invention is further decreased.
Detailed description of the invention
Fig. 1 is the subelement architecture diagram of the optical projection system of first embodiment of the invention.
Fig. 2 is color block component in Fig. 1 in the structural schematic diagram of other direction.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
Fig. 1 is the subelement architecture diagram of the optical projection system 100 of first embodiment of the invention.Optical projection system 100 of the present invention
Include main light source 10, compensatory light 20, optical element 30 and color block component 40.
Main light source 10 has first wave length for issuing the first coloured light, first coloured light.Main light source 10 can be white light
Source, red light source, green light source or blue-light source, but not limited to this.In the present embodiment, main light source 10 is monochromatic source,
And be blue-light source, but not limited to this, specifically by designer according to the actual situation depending on, details are not described herein.Further
, main light source 10 can be laser light source, can also be LED light source, but not limited to this.
Compensatory light 20, for issuing the second coloured light, the wavelength of second coloured light is different from first coloured light, for compensating this
First coloured light, and be preferred with the light that second coloured light can form at least two wavelength after color block component 40.Second coloured light can
To be sodium yellow, cyan light, pink colour light or blue-green light, specifically by designer according to the actual situation depending on, herein no longer
It repeats.In the present embodiment, compensatory light 20 is yellow light sources, which is sodium yellow, and the sodium yellow is through color block component 40
After can form red light and green light, three kinds of primary lights of the imaging that the red light and the green light cooperate the blue light to constitute,
Without other light sources are arranged again.Certainly, when first coloured light is white light, first coloured light cooperation color block component 40 can be produced
Coloured light needed for raw a variety of imagings, then the setting of second coloured light, which is subject to, can compensate for the third coloured light, specifically by designer
Member according to the actual situation depending on, details are not described herein.Further, compensatory light 20 can be laser light source, can also be LED
Light source, but not limited to this.
Optical element 30 is set between main light source 10, compensatory light 20 and color block component 40, for guiding main light source
Second coloured light that 10 first coloured light issued and compensatory light 20 are issued is to color block component 40.In practical application,
The light direction of main light source 10 and compensatory light 20 is not parallel to each other usually, and optical element 30 is used for the first coloured light and the second color
The transmission path of light is adjusted to generally parallel orientation incidence color block component 40, and but not limited to this.In the present embodiment, main light source
10 and the light direction of compensatory light 20 be mutually perpendicular to, i.e. the first coloured light that projects of main light source 10 is along the first paths, compensation
The second coloured light that light source 20 projects receives along the second paths, first optical path perpendicular to second optical path, optical element 30
Along first paths first coloured light and reflex to along third paths, optical element 30 receives along second optical path
Second coloured light propagated, and continue to transmit second coloured light along second optical path, the third optical path is parallel with second optical path
Or be overlapped, with incident color block component 40.It should be strongly noted that optical element 30 is nonessential element, specifically by designing
Personnel according to the actual situation depending on, details are not described herein.Optical element 30 is half-transparent half-reflection element, saturating for second coloured light
It crosses, and first coloured light can be reflected, to keep the optical path of the two parallel or be overlapped.
Color block component 40 is set on the transmission path of first coloured light and second coloured light, that is, be set to the third light
On road and second optical path.Color block component 40 includes the first filter area 401, and the first filter area 401 is formed by plated film, this first
Incident first filter area 401, first coloured light obtain third color after the first filter area 401 simultaneously for coloured light and second coloured light
Light, second coloured light obtain the 4th coloured light after the first filter area 401.Wherein, which can be with the third coloured light phase
Together or first coloured light includes the third coloured light, which can or second coloured light identical as the 4th coloured light
Comprising the 4th coloured light, specifically by designer according to the actual situation depending on, details are not described herein.Further, the 4th color
The wavelength of light is different from the wavelength of the third coloured light, and the wavelength of the 4th color is between the wavelength of second color and the wavelength of the third color
Between.In the present embodiment, which is blue light, and the 4th color coloured light is green light, then corresponding, the first filter area
401 have blue plated film and green plated film, so that the green light and the sodium yellow pass through, that is, the type of plated film and required light
Line is corresponding, specifically by designer according to the actual situation depending on.
Wherein, the third coloured light and the 4th coloured light project from color block component 40 simultaneously and are mixed to get the 5th coloured light, and
The wavelength of 5th coloured light is between the wavelength of the third coloured light and the wavelength of the 4th coloured light, i.e. λ3< λ5< λ4, λ3、λ4With
λ5In the wavelength for being respectively the third coloured light, the 4th coloured light and the 5th coloured light.It should be strongly noted that in practical application
In, the wavelength of the 5th coloured light refers between the third coloured light and the wavelength of the 4th coloured light: the master of the 5th coloured light
Wavelength is between the third coloured light dominant wavelength and the wavelength of the 4th coloured light.In this way, the present invention is compensated by the 4th coloured light
The third coloured light obtains fiveth coloured light of the wavelength between the wavelength of the third coloured light and the wavelength of the 4th coloured light, i.e., by
It is adjusted to obtain the 5th coloured light of required wavelength by compensation light, namely has obtained the 5th coloured light of required chromaticity coordinates, reach pure
The modulation effect of color, improves the quality of color quasi- effect and imaging.For example, in practical application, although main light source 10 uses
Blue-light source, however the blue light that blue-light source generates is partially purple (such as dominant wavelength is 440nm), and pass through what compensatory light generated
After green light (such as dominant wavelength is 500nm) or blue-green light compensation in second coloured light, complied with standard (such as
DCI REC.709 gamut standards) blue light (such as dominant wavelength be 460nm), the quality of imaging can be improved.Also, this hair
It is bright by double light sources, the filtering functions of color block component of arranging in pairs or groups are realized obtain imaging needed for coloured light, compared to by three light sources
Design obtain imaging needed for coloured light, the present invention can reduce by a light source, decrease corresponding optical element, structure letter
Single, volume-diminished and cost reduction；In addition, required coloured light, phase are obtained by filtration by plated film on color block component by the present invention
Compared with exciting to obtain required coloured light by fluorescent powder, cost of the present invention is further decreased.
Further, there is plated film, plated film is to the saturating of the 4th coloured light on the first filter area 401 on the first filter area 401
It is corresponding with the intensity of the 4th coloured light being emitted from the first filter area 401 to cross rate, when the plated film is to the transmission of the 4th coloured light
When rate is high, the intensity for the 4th light being emitted from the first filter area 401 is high, when transmitance of the plated film to the 4th coloured light is low
When, the intensity for the 4th light being emitted from the first filter area 401 is low.In practical application, can by adjusting the plated film to this
The transmitance of four coloured light come adjust from color block component 40 project the 4th coloured light intensity, and then adjust the compensated 5th
Coloured light.
In the present embodiment, which is partially purple blue light, this second it is photochromic be sodium yellow, which is indigo plant
Coloured light, the 4th coloured light is green light, then after the third coloured light and the 4th Colored light mixing, obtains the 5th coloured light, the 5th
Coloured light is blue light, and the coordinate of the 5th coloured light meets following range: 0.14≤Xb≤0.15,0.04≤Yb≤0.09,
In, for the 5th coloured light of Xb in the X axis coordinate of chromatic graph degree, Yb is the 5th coloured light in the Y axis coordinate of the chromatic diagram, but not as
Limit, specifically by designer according to the actual situation depending on, details are not described herein.
Further, color block component 40 further includes the second filter area 402 and third filter area 403, preferably, first filters
Area 401, the second filter area 402 and third filter area 403 are arranged along the rotation direction of color block component 40, but not as
Limit.Specifically, first coloured light and incident second filter area 402 of second coloured light, obtain the 4th coloured light, it should in the present embodiment
4th coloured light is green light；First coloured light and the second coloured light incidence third filter area 403, obtain the 6th coloured light, this implementation
In example, the 6th coloured light is red light, and but not limited to this.Further, first coloured light and the 6th Colored light mixing obtain
Second coloured light, for example, the green light and the red light are mixed to get the sodium yellow, specifically according to the actual situation by designer
Depending on, details are not described herein.Further, which does not pass through the second filter area 402, for example, first coloured light is by
The reflection of two filter areas 402 is absorbed by the second filter area 402, and but not limited to this, and second coloured light is through 402 mistake of the second filter area
Filter obtains the 4th coloured light, which is reflected by third filter area 403, which filters through third filter area 403
Obtain the 6th coloured light.There is green plated film, which is blue light, second color in this example, on the second filter area 402
Light is sodium yellow, and when first coloured light and second coloured light the second filter area 402 of incidence, the blue light is by the second filter area
402 reflections, the sodium yellow obtain the green light after green plated film filtering；There is red plated film on third filter area 403, when
When first coloured light and second coloured light the second filter area 402 of incidence, which is reflected by the second filter area 402, the yellow
Light obtains red light after red plated film filtering.Further, in the present embodiment, the 4th coloured light, the 5th coloured light and should
6th Colored light mixing obtains white light.
Further, optical projection system 100 further includes control device, when the first filter area 401 is located at first coloured light and should
When on the transmission path of the second coloured light, the control device by respectively control main light source 10 output power (such as output electric current,
Voltage) and the output power (such as output electric current, voltage) of compensatory light 20 control first coloured light and second coloured light
Intensity, and then the intensity of the third coloured light and the 4th coloured light is controlled, to obtain the five colors of required chromaticity coordinates
To configure different color representations, such as the output power of main light source 10 can be improved to increase the strong of the third coloured light in light
Degree can also increase the intensity of the 4th coloured light by improving the output power of compensatory light 20, specifically by operator according to
Depending on reality or designer according to the actual situation depending on, details are not described herein.When the second filter area 402 is located at first color
When on the transmission path of light and second coloured light, since first coloured light is reflected by the second filter area 402, only in second coloured light
The 4th coloured light can by the second filter area 402, therefore, the control device by control compensatory light 20 output power
(such as output electric current, voltage) controls the intensity of second coloured light, and then controls four for penetrating 402 from the second filter area and going out
The intensity of coloured light, for example, can be by the output power of increase compensatory light 20, to obtain penetrating from the second filter area for higher-strength
402 the 4th coloured light projected；Preferably, in order to reduce the generation of loss and waste heat, when the second filter area 402 be located at this first
When on the transmission path of coloured light and second coloured light, which can reduce the output power of main light source 10, be even switched off, but
It is not limited.When third filter area 403 is located on the transmission path of first coloured light and second coloured light, due to this first
Coloured light is reflected by third filter area 403, and only the 6th coloured light in second coloured light can be by third filter area 403, therefore, should
Control device controls the strong of second coloured light by controlling the output power (such as output electric current, voltage) of compensatory light 20
Degree, and then the intensity of the 6th coloured light projected from third filter area 403 is controlled, for example, can be by increasing compensatory light 20
Output power, to obtain the 6th coloured light for penetrating 403 injections from third filter area of higher-strength；Preferably, in order to reduce damage
The generation of consumption and waste heat, when third filter area 403 is located on the transmission path of first coloured light and second coloured light, the control
Device can reduce the output power of main light source 10, be even switched off, and but not limited to this.That is, the present invention can be by controlling master respectively
The output power of light source 10 and compensatory light 20 obtains the 5th coloured light of different chromaticity coordinates, and obtain varying strength should
4th coloured light and the 6th coloured light allot different color representations to configure different modes, improve image quality and user
Experience, and energy can be saved, reduce the generation of waste heat.
Further, optical projection system 100 of the present invention further includes lighting apparatus component 50 and projection lens, is projected from color block component 40
The 4th coloured light, the 5th coloured light and the 6th coloured light incidence lighting apparatus component 50, to be converted into imaging, and by the projection
Camera lens projection imaging.
In other embodiments, color block component 40 can also include the 4th filter area, the 4th filter area be used for for this
Dichroscope penetrates, and with incident lighting apparatus component 50, but not limited to this, specifically by designer according to the actual situation depending on, herein
It repeats no more.
To sum up, the present invention provides a kind of optical projection system, including main light source, compensatory light and color block component, which uses
In issuing the first coloured light, which includes the first filter area for issuing the second coloured light, the color block component, first optical filtering
Area is formed by plated film, first coloured light and second coloured light incident first filter area simultaneously, first coloured light by this
The third coloured light is obtained after one filter area, which obtains the 4th coloured light after first filter area, the third coloured light and
4th Colored light mixing obtains the 5th coloured light, and the wavelength of the 5th coloured light is located at the wavelength and the 4th coloured light of the third coloured light
In wave-length coverage, in this way, the present invention compensates the third coloured light by the 4th coloured light, wavelength is obtained between the wave of the third coloured light
The 5th coloured light in long and the 4th coloured light wave-length coverage adjusts to obtain the five colors of required wavelength by compensation light
Light, namely the 5th coloured light of required chromaticity coordinates has been obtained, reach the modulation effect of pure color, improves the quasi- effect of color and imaging
Quality；Also, the present invention is realized by the filtering functions of double light sources collocation color block component obtains the required coloured light of imaging, compared to
Coloured light needed for obtaining imaging by the design of three light sources, the present invention can reduce by a light source, decrease corresponding optics
Element, structure is simple, volume-diminished and cost reduce；In addition, needed for the present invention is obtained by filtration by plated film on color block component
The coloured light wanted, compared to exciting to obtain required coloured light by fluorescent powder, cost of the present invention is further decreased.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (10)
1. a kind of optical projection system, including main light source, compensatory light and color block component, which, should for issuing the first coloured light
First coloured light has first wave length；The compensatory light has second wave length for issuing the second coloured light, second coloured light, this second
Wavelength is different from the first wave length；The color block component is set on the transmission path of first coloured light and second coloured light, feature
It is,
The color block component includes the first filter area, which forms by plated film, first coloured light and second coloured light
Incident first filter area, first coloured light obtain third coloured light after first filter area simultaneously, and second coloured light is through being somebody's turn to do
The 4th coloured light, wavelength of the wavelength of the 4th coloured light different from the third coloured light, the 4th coloured light wavelength Jie are obtained after first filter area
Between the second coloured light wavelength and third coloured light wavelength；
Wherein, the third coloured light and the 4th coloured light are projected from the color block component simultaneously, and the third coloured light and the 4th coloured light are mixed
Conjunction obtains the 5th coloured light, the wavelength of the 5th coloured light between the wavelength of the third coloured light and the wavelength of the 4th coloured light, by
It is adjusted to obtain the 5th coloured light of required wavelength by compensation light, reaches the modulation effect of pure color, improve the quasi- effect of color and imaging
Quality.
2. optical projection system as described in claim 1, which is characterized in that plated film is to the saturating of the 4th coloured light on first filter area
It is corresponding with the intensity of the 4th coloured light being emitted from first filter area to cross rate, when the plated film is to the transmitance of the 4th coloured light
The intensity of Gao Shi, the 4th light being emitted from first filter area are high, when transmitance of the plated film to the 4th coloured light is low, from
The intensity of 4th light of first filter area outgoing is low.
3. optical projection system as described in claim 1, which is characterized in that further include control device, which can be by dividing
The output power of the output power and the compensatory light that do not control the main light source controls first coloured light and second coloured light
Intensity, and then control the intensity of the third coloured light and the 4th coloured light.
4. optical projection system as described in claim 1, which is characterized in that the third coloured light is blue light, and the 4th coloured light is green
Coloured light.
5. optical projection system as described in claim 1, which is characterized in that the coordinate of the 5th coloured light meets following range: 0.14
≤ Xb≤0.15,0.04≤Yb≤0.09, wherein the 5th coloured light of Xb in the X axis coordinate of chromatic graph degree, Yb be the 5th coloured light in
The Y axis coordinate of the chromatic diagram.
6. optical projection system as described in claim 1, which is characterized in that first filter area has blue plated film and green plating
Film passes through for blue light and green light.
7. optical projection system as described in claim 1, which is characterized in that the color block component further includes the second filter area and third filter
Incident second filter area of light area, first coloured light and second coloured light, obtains the 4th coloured light, first coloured light and second color
The light incidence third filter area, obtains the 6th coloured light, and the 6th coloured light wavelength is greater than the second coloured light wavelength, the 4th coloured light and should
6th Colored light mixing obtains second coloured light.
8. optical projection system as claimed in claim 7, which is characterized in that further include control device, when second filter area is located at
When on the transmission path of first coloured light and second coloured light, which is controlled by controlling the power of the compensatory light
The intensity of second coloured light, and then the intensity of the 4th coloured light projected from second filter area is controlled, when the third filter area
When on the transmission path of first coloured light and second coloured light, the control device by control the power of the compensatory light come
The intensity of second coloured light is controlled, and then controls the intensity of the 6th coloured light projected from the third filter area.
9. optical projection system as claimed in claim 7, which is characterized in that the 4th coloured light, the 5th coloured light and the 6th coloured light
It is mixed to get white light.
10. such as the described in any item optical projection systems of claim 1-9, which is characterized in that the main light source is monochromatic source and is this
Blue-light source, the compensatory light are monochromatic source and are yellow light sources.
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| CN201710319057.1A CN107037680B (en) | 2017-05-08 | 2017-05-08 | Optical projection system |
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| CN201710319057.1A CN107037680B (en) | 2017-05-08 | 2017-05-08 | Optical projection system |
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| CN109557751B (en) | 2017-09-26 | 2021-07-23 | 深圳光峰科技股份有限公司 | Light source system and projection system using same |
| CN109991799B (en) * | 2017-12-29 | 2022-01-04 | 深圳光峰科技股份有限公司 | Light source system and projection equipment |
| CN110347010B (en) * | 2019-06-27 | 2021-04-20 | 苏州佳世达光电有限公司 | Light source module and projection device |
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