CN106383429A - Light source color uniformity adjusting device - Google Patents
Light source color uniformity adjusting device Download PDFInfo
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- CN106383429A CN106383429A CN201610805528.5A CN201610805528A CN106383429A CN 106383429 A CN106383429 A CN 106383429A CN 201610805528 A CN201610805528 A CN 201610805528A CN 106383429 A CN106383429 A CN 106383429A
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- light
- light beam
- light source
- hot spot
- target
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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
- G03B21/206—Control of light source other than position or intensity
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
Abstract
The present invention provides a light source color uniformity adjusting device. The device comprises a first light source device, a second light source device and a third light source device which respectively emit a first light beam, a second light beam and a third light beam with different colors; a first regulation element performs transmission of any one or any two light beams in the first light beam, the second light beam and the third light beam and performs reflection of the other two or the other one in the first light beam, the second light beam and the third light beam to pass through a guide light hole for shooting to a calibration target and form a first facula, a second facula and a third facula on the target; and through adoption of the first regulation element, the position of each facula on the standard target can be regulated to allow each facula to overlap so as to improve the overlap ratio of the facula space position after each light source device is subjected to composition of light and reach the purpose of the uniformity of the projection light source color.
Description
Technical field
The present invention relates to optical detection apparatus technology, more particularly, to a kind of light source colour uniformity adjusting apparatus.
Background technology
DLP projection light source is to export red, green, blue three primary colours light by timing, forms mixed white light and carries for x ray machine part
For illumination, the optical modulation element dmd chip of x ray machine part accepts the hot spot of front end light source part output, and according to image procossing core
The control of piece, carries out the display of each color component, projects successively into camera lens, is finally imaged on the projection screen.
With the development of laser display industry, LASER Light Source has long service life, color compared with conventional projection bulb
Good, pollution-free the advantages of, it is increasingly becoming the main flow of projection light source.And, due to pure LASER Light Source because some laser speckles are special
Property and also less, the more conventional LASER Light Source of Cost Problems commercial application, the typically mixed light of laser and fluorescence composition
Source.
Because LASER Light Source uses optical element many, focal beam spot deviation is big, especially using LASER Light Source and fluorescence
When light source is synthesized, laser and fluorescence, or the laser of different colours can be synthesized from different light paths, just can complete sky
Between superposition form mixed white light light beam, and in beam Propagation light path, require generally for light utilization efficiency or fluorescence excitation, light
Speckle size has strict restriction, and an optical routing multi-disc eyeglass composition of each color, the processing and fabricating of optical glass and assembling
Journey can gradually accumulated error, so that light path cannot be transmitted fully according to theory calls, thus easily causing hot spot concordance
Difference, so that projector equipment picture color uniformity cannot ensure.
Content of the invention
The present invention provides a kind of light source colour uniformity adjusting apparatus, after being beneficial to raising projection light source each primary colours actinic light
Color homogeneity.
For achieving the above object, adopt the following technical scheme that：
The present invention provides a kind of light source colour uniformity adjusting apparatus, including：Calibration target, calibration target is provided with target；
Between light directing arrangement, and calibration target, there is setpoint distance, light directing arrangement is provided with guiding unthreaded hole, guiding unthreaded hole
Diameter has setting value, and target is centrally located on the axis of guiding unthreaded hole；
And, the first light supply apparatuses, secondary light source device and the 3rd light supply apparatuses, the first light supply apparatuses, secondary light source device and
3rd light supply apparatuses send the first light beam, the second light beam and the 3rd light beam, the first light beam, the second light beam and the 3rd light beam face respectively
Color is different；
First light beam, the second light beam and the 3rd light beam all can pass through guiding unthreaded hole directive calibration target, and on target respectively
Form the first hot spot, the second hot spot and the 3rd hot spot；
First adjustment element, the first adjustment element is to arbitrary or any two light beams in the first light beam, the second light beam, the 3rd light beam
Carry out transmission, and other two or another kind are reflected, enter light directing arrangement directive standard target, the first adjustment element
Angle or position adjustments can be carried out；
Further, the 3rd light supply apparatuses are fluorescence light source, and the 3rd light beam is the 3rd fluorescent light beam, and the first light supply apparatuses are fluorescence
The excitation source of light source；
Further, the first light supply apparatuses are first laser light source, and the first light beam is first laser light beam, and secondary light source device is
Second laser light source, the second light beam is second laser light beam, and the color of the first light beam and the second light beam is different；
Further, the 3rd light supply apparatuses include transmission area and phosphor region, and transmission area is used for transmission first light beam, and phosphor region is used for
Send threeth fluorescent light beam in opposite direction with the first beam Propagation；
Further, also include the second adjustment element, the second adjustment element is located in the turnover light path of the first light beam, for the
One light beam is reflected；
Further, the first adjustment element includes support and eyeglass, and support and eyeglass are connected by universal joint；
Further, support includes retractor device, and retractor device is connected with universal joint, and retractor device is used for stretching or shrinks, with
Adjust the height of eyeglass；
Further, the second adjustment element can carry out angle rotation regulation or front and back position moves；
Further, the second adjustment element may include more than one；
Further, also include time sequence control device, time sequence control device be used for the first light supply apparatuses, secondary light source device and
The sequential of lighting of the 3rd light supply apparatuses is controlled.
Based on above-described embodiment technical scheme content, when assembling and setting is carried out to light source, the first adjustment element pair
The first light beam, the second light beam or the 3rd light beam that first light supply apparatuses, secondary light source device, the 3rd light supply apparatuses send are carried out
Penetrate or reflect, and make above-mentioned light beam pass through light directing arrangement the hot spot of directive standard target formation different colours, now, calibration
First hot spot, the second hot spot, the relative position of the 3rd hot spot be can show that on target, thus by adjusting the first adjustment element
Position or angle can achieve and adjust the position put in standard target of each hot spot, so that each hot spot is overlapped, thus improving each light source
The registration of hot spot locus after device closing light, thus reach the purpose of projection light source color homogeneity.
And, by arranging the second adjustment element, the facula position of a road laser beam outgoing individually can be adjusted
Section, improves the motility of light source hot spot regulation, is conducive to being rapidly achieved the purpose of adjustment projection light source color homogeneity.
Brief description
Fig. 1-1 provides a kind of structural representation of light source colour uniformity adjusting apparatus for the embodiment of the present invention；
Fig. 1-2 provides a kind of another structural representation of light source colour uniformity adjusting apparatus for the embodiment of the present invention；
Fig. 2 provides a kind of another structural representation of light source colour uniformity adjusting apparatus for the embodiment of the present invention；
Fig. 3 provides a kind of structural representation of the light directing arrangement of light source colour uniformity adjusting apparatus for the embodiment of the present invention；
Fig. 4 provides a kind of structural representation of the calibration target of light source colour uniformity adjusting apparatus for the embodiment of the present invention；
Fig. 5 is to provide a kind of optics configuration diagram of light source colour uniformity adjusting apparatus using the embodiment of the present invention.
Specific embodiment
Embody feature of present invention will describe in detail in the following description with the exemplary embodiment of advantage.It should be understood that
The present invention can have various changes on different embodiments, and it neither departs from the scope of the present invention, and theory therein
Bright and diagram is treated as purposes of discussion in itself, and is not used to limit the present invention.
Embodiment one,
The embodiment of the present invention one provides a kind of light source colour uniformity adjusting apparatus, combines Fig. 1-1 first, shown in Fig. 3, Fig. 4
Structural representation this adjusting apparatus framework is described.
As Figure 1-1, this light source colour uniformity adjusting apparatus includes：Calibration target 16, calibration target 16 is provided with
Target, as shown in figure 4, target is cross target, or also includes target disc, and target disc and cross target center are heavy
Close；There is setpoint distance, as shown in figure 3, light directing arrangement 15 is provided with guiding between light directing arrangement 15, and calibration target 16
Unthreaded hole 150, the diameter of guiding unthreaded hole 150 has setting value, and target 160 is centrally located on the axis of guiding unthreaded hole 150, thus light
Bundle can be directly transmitted to target 160 center by guiding unthreaded hole 150.
And, the first light supply apparatuses 11, secondary light source device 12 and the 3rd light supply apparatuses 13, the first light supply apparatuses 11,
Two light supply apparatuses 12 and the 3rd light supply apparatuses 13 send the first light beam, the second light beam and the 3rd light beam respectively, the first light beam, second
Light beam and the 3rd light beams colors are different, can produce white light after mixing.
First light beam, the second light beam and the 3rd light beam all can pass through guiding unthreaded hole 150 directive calibration target 16, and in target
Form the first hot spot, the second hot spot and the 3rd hot spot respectively on mark 160.Wherein, the first hot spot, the second hot spot and the 3rd hot spot can
To beat on calibration target 16 simultaneously, to observe the registration of three kinds of hot spots it is also possible to when working according to projection light source simultaneously
Sequence feature is beaten in calibration target 16 according to sequential successively, by contrasting position on calibration target 16 for three kinds of hot spots respectively, than
As by instrument, compared the registration of three kinds of hot spots.And the registration of different colours hot spot then directly determines light source colour
Uniformity, if this is because, the hot spot of arbitrary hot spot and other colors can not reach the registration in preset range, pole
Colour cast in the image frame easily causing projection formation.
In light source colour uniformity adjusting apparatus shown in Fig. 1-1, the first light supply apparatuses 11, secondary light source device 12 and
3rd light supply apparatuses 13 perpendicular arrangement mode two-by-two, the first light beam sending, the second light beam and the 3rd light beam at least two are biphase
Hand over, and final combining output.When realizing combining output, the present embodiment includes the first adjustment element 14, specifically, the first tune
Whole element 14 is transmissive to the first light beam, the second light beam, and reflects the 3rd light beam, thus by three kinds of light beam combinings in one direction
Output, and directive light directing arrangement 15, finally get to formation hot spot on standard target 16.First adjustment element 14 can be located at first
The cross-point locations of light supply apparatuses 11, secondary light source device 12 and the 3rd light supply apparatuses 13.
In the present embodiment, the 3rd light supply apparatuses 13 are fluorescence light source, and the 3rd light beam is the 3rd fluorescent light beam, specifically,
Fluorescence light source can be Wavelength converter, and by being provided with fluorescent material on Wavelength converter, fluorescent material stimulated luminescence swashs
Send out thus sending fluorescence, such as, the first light supply apparatuses 12 are the excitation source of this fluorescence light source.
And, the first light supply apparatuses 11 are first laser light source, and such as blue laser array, the first light beam is first
Laser beam, secondary light source device 12 is second laser light source, and such as red laser array, the second light beam is second laser
Light beam, the color of the first light beam and the second light beam is different, is specifically respectively blue laser and red laser.Then the 3rd light supply apparatuses
It is provided with green emitting phosphor on 13, and accepts the irradiation of the blue laser that first laser light source sends, be excited to send green fluorescence,
Thus forming mixed white light after blue laser, red laser and green fluorescence combining, as lighting source.
And, the first adjustment element 14 can be specifically dichroic mirror.
And, the 3rd light supply apparatuses 13 are in particular a rotatable Wheel structure, including transmission area and phosphor region, its
In, transmission area is used for transmission first light beam, i.e. transmitting blue laser, and it is that blue laser passes that phosphor region is used for sending with the first light beam
Defeated 3rd fluorescent light beam in opposite direction, i.e. green fluorescence, because the 3rd light supply apparatuses are reflective fluorescent wheel, substrate sets
It is equipped with highly reflecting films, the fluorescent reflection being excited to produce can be gone out.With the rotation of fluorescent wheel, transmission area and phosphor region are successively
Positioned at the irradiation area of blue laser hot spot, thus moment blue laser beams are from the outgoing of the fluorescent wheel back side, another moment,
Green fluorescence is reflected from the front of fluorescent wheel, the incident direction contrast with blue laser.
In above process, blue laser beams reach the face that the first adjustment element 14 is dichroic mirror, and directive
3rd light supply apparatuses 13, the green fluorescence that the 3rd light supply apparatuses 13 send is reflected onto the another side of dichroic mirror, and is reflected.
Blue laser needs to turn again to the one side of dichroic mirror after turnover light path after the outgoing of the fluorescent wheel back side, and
Again transmitted through dichroic mirror.
Turnover light path includes multi-disc reflecting mirror and dichroic mirror.
Secondary light source device 12 is arranged along optical axis direction, and sends red laser light beam, is incident to the first adjustment element 14,
This first adjustment element 14 is also capable of transmission HONGGUANG by plated film, thus after red laser transmission with above-mentioned blue laser,
Green fluorescence carries out closing light.
In said process, because the first adjustment element 14 is as the closing light element of three kinds of light beams, its position and angle are to light
The closing light influential effect of bundle is larger.Therefore, using the first adjustment element 14 as this adjusting apparatus adjustment part, specifically,
One adjustment element 14 includes support and eyeglass, and wherein, support and eyeglass are connected by universal joint.
And, support can include retractor device, and retractor device is connected with universal joint, and retractor device is used for stretching or receives
Contracting, to adjust the height of described eyeglass.Universal joint can make the first adjustment element 14 carry out luffing angle rotation regulation.
And, this adjusting apparatus also includes time sequence control device（In figure is not shown）, this time sequence control device is used for the
The sequential of lighting of one light supply apparatuses 11, secondary light source device 12 and the 3rd light supply apparatuses 13 is controlled, as already mentioned it is possible to
Light red laser array and blue laser array it is also possible to open successively simultaneously, when opening simultaneously, can exist successively
Red hot spot and blue hot spot are observed on target 160, and the coincidence situation of red hot spot and green spot.When opening successively
When, red hot spot, blue hot spot, the green light source projection situation on target 160 respectively can be observed successively.
By adjusting angle and the lens height of the first adjustment element, thus it is possible to vary each color hot spot is on target 160
Distribution situation, specifically, target disc can also include scale, for accurate measurement hot spot position difference.When each color hot spot
When reaching coincidence, the coincidence of indication herein refers to a threshold value in human eye tolerance interval, when in this threshold range,
It is believed that the facula position of this three kinds of colors overlaps, then the uniformity of light source colour reaches requirement.
And, light directing arrangement 15 also includes plate, and guiding unthreaded hole 150 is arranged on plate, the effect master of guiding unthreaded hole
If carrying out limiting guiding light beam, directivity is higher, to form hot spot on setting position-standard target 16.
And, Fig. 1-2 provides another kind of light source colour uniformity adjusting apparatus, on the basis of Fig. 1-1, this Fig. 1-2
Shown adjusting apparatus include the first adjustment element 141,142, i.e. element 141, and 142 are dichroic mirror element.
And, because blue light needs just can turn again at the first adjustment element 141 through turnover light path, then light path of transferring
In at least need including the second adjustment element 171,172, element 171,172 are reflecting mirror, repeatedly anti-by carrying out to blue light
Penetrate formation turnover loop.In the present embodiment, the first adjustment element 142 can reflect blue light, transmission HONGGUANG.
Second adjustment element 171,172 can carry out angle rotation and adjust, and realize the pitching change of reflecting mirror, thus changing light
Direction after reflection for the bundle.Or the mobile regulation of front and back position can also be carried out, thus change under the arrival of the light beam after reflection
The incoming position of one eyeglass.
Structural representation in figure shown in Fig. 1-2, the first adjustment element 141,142 can as Figure 1-1 first tune
Whole element 14 can carry out the adjustment of angles and positions it is also possible to only optionally make one of element as scalable unit
Part, such as only 141 scalable, 142 is to be fixedly installed.And, the second adjustment element 171,172 can also be disposed as in the same manner can
It is also possible to only selecting one of is adjustable component, other are to be fixedly installed to regulating element, such as 171 scalable, and 172 are
It is fixedly installed.
Such as in light supply apparatuses output red laser and blue laser, it is understood that there may be the feelings as shown in Fig. 5-1 and Fig. 5-2
Condition.In Fig. 5-1, there are red blue two kinds of hot spots in downward shift, Fig. 5-2 and there is left and right skew in red blue two kinds of hot spots.Among these
One kind is probably, blue light due to the turnover light path after the 3rd light supply apparatuses 13 turn again to the first adjustment element 141 when, enter
The position being incident upon dichroic mirror is different from the position that the red laser hot spot that secondary light source device 12 sends is incident to dichroic mirror,
Although thus causing two kinds of light beams all to have passed through transmission, then through light directing arrangement 15, occurring when inciding on standard target 16
Position skew.Now, near target center, then departure degree is serious for red hot spot for blue hot spot, then can first pass through adjustment
The luffing angle of one adjustment element 141, thus change HONGGUANG hot spot to be incident to the position of dichroic mirror and the dichroic mirror of process
Internal dielectric thickness, is finely adjusted from the Exit positions of dichroic mirror to HONGGUANG hot spot, finally makes HONGGUANG hot spot movement to target
The center of mark 160, makes to overlap as far as possible with the blue light hot spot having been positioned at predeterminated position.
And if HONGGUANG hot spot is located at target predeterminated position, such as it is located at center or very close to center, and blue light hot spot
With HONGGUANG hot spot, there is upper-lower position skew, then need individually the light path of blue light to be adjusted.Specifically, can adjust the second tune
Whole element 171, by the second adjustment element 171 is carried out with the regulation of luffing angle, reaches the second adjustment after changing blu-ray reflection
The incident angle of element, and reach the incident angle of the first adjustment element 142, finally change incident first adjustment element 141
Incoming position and angle so that the blue light facula position being finally incident to standard target 16 occurs to change up and down, make to reach pre-
If position, improve the registration with other color hot spots.
And, as shown in Fig. 5-2, when HONGGUANG hot spot is located at the center of target 160, and blue light hot spot is located at target 160
The left side at center or right when, a kind of regulative mode is, adjusts the angle that tilts of the first adjustment element 141, makes blue light light
Speckle and HONGGUANG hot spot incide the position that the first adjustment element 141 is dichroic mirror same side and are more nearly, then blue light hot spot
Center to target 160 is mobile it is ensured that blue light hot spot and HONGGUANG hot spot overlap in the center of target 160.And, a kind of tune
Section mode is to translate the position of the second regulating element 171 so that light beam is after the second regulating element 171 by left and right
The position reflexing to next element the second regulating element 172 is moved, but angle is constant, so that being finally incident to first
The position of regulating element 141 also can occur left and right skew, reach and make blue light hot spot pass through to move left and right to reach target 160 center
Purpose.
Above-mentioned be also regulation in the same manner only it will be understood that when observing red green two kinds of hot spots taking red blue two kinds of hot spots as a example
Process.Unlike simply, the position adjustments of green spot are only relevant with the first regulating element 141, are therefore adjusted merely by the
One regulating element 141 can achieve the regulation of green glow facula position, and blue light hot spot forms light path complexity because of it, through multiple
Transmission and reflection, and simultaneously through the first regulating element 141 and the second regulating element 171 in whole transmission light path, second
Regulating element 171 only can affect blue light facula position.
In this Fig. 1-1, the schematic diagram shown in Fig. 1-2, the position of red hot spot is only relevant with the first regulating element 141,
Therefore, it is also to be adjusted merely by the regulation that the first regulating element 141 can achieve HONGGUANG facula position, in other enforcements,
First regulating element 142 can be also configured as scalable, then the position adjustments for HONGGUANG hot spot can be adjusted by first
Section element 141, one of 142 or two adjust simultaneously.So correspondingly, the regulation of blue light hot spot and the first regulating element
142 is also relevant.And, if the second regulating element 172 is also provided with scalable, then the regulation of blue light hot spot can be simultaneously with first
Regulating element 141 or 142, the second regulating element 171 or 172 is relevant, or all relevant with this four piece element.In practical application
In, in order to reduce the complexity of regulation, can only arrange a piece of dichroic mirror and a piece of reflecting mirror is adjustable component.
Fig. 2 shows another kind of light source colour uniformity adjusting apparatus, and unlike Fig. 1-1 or Fig. 1-2 framework, second
Light supply apparatuses 12, are also red laser array herein, are arranged at the back side of the 3rd light supply apparatuses 13, then former 3rd light supply apparatuses
The reflecting mirror for reflecting light beam at 13 back sides is substituted by a piece of dichroic mirror.I.e. in figure is located at the 3rd light supply apparatuses 13 He
The first adjustment element 142 between secondary light source device 12 is dichroic mirror, and the red light beam that secondary light source device 12 sends is saturating
It is emitted through the first adjustment element 142, and the transmission area of the fluorescent wheel through the 3rd light supply apparatuses 13, it is identical with fluorescence exit direction,
It is incident to the first adjustment element 141.
Now, the dichroic mirror of the first adjustment element 141 is set to transmission blue light, reflection HONGGUANG and green glow.
When carrying out the adjustment of hot spot registration, if the first adjustment element 142, the second adjustment element 172 are to be fixedly installed,
The position adjustment of HONGGUANG hot spot and green glow hot spot is relevant with the first adjustment element 141, and the position adjustment of blue light hot spot is adjusted with first
Whole element 141, the second adjustment element 171 is relevant.The process of adjustment and principle, with aforementioned citing, repeat no more again.
Ibid above-described embodiment content understands, the first adjustment element is to the first light supply apparatuses, secondary light source device, the 3rd light
The first light beam, the second light beam or the 3rd light beam that source device sends carry out transmission or reflection, and so that above-mentioned light beam is guided by light
Device the hot spot of directive standard target formation different colours, now, calibration target can show that the first hot spot, the second light
Speckle, the relative position of the 3rd hot spot, adjust each hot spot thus can achieve by the position or angle adjusting the first adjustment element
The position put in standard target, makes each hot spot overlap, thus improving the registration of hot spot locus after each light supply apparatuses closing light,
Thus reaching the purpose of projection light source color homogeneity.
And it is considered to the complexity of blue light paths, by adjusting the second adjustment element, can be on the first adjustment element basis
On, or not to the first regulating element on the basis of, the facula position of light beam outgoing is individually adjusted, improves light
The motility that source hot spot is adjusted, is conducive to being rapidly achieved the purpose of adjustment projection light source color homogeneity.
Embodiment two,
To be described further with a specific embodiment below.
Refer to Fig. 6, show a kind of two-color laser light source optics framework, including blue laser light source 61, red
LASER Light Source 62, sends blue laser and red laser respectively.Fluorescent wheel 63, is reflective fluorescent wheel, including blue light transmission area
And phosphor region, phosphor region is provided with green emitting phosphor, in the relaying loop lens set 632 of fluorescent wheel 63 back side setting, is used for drawing
Lead blue light turnover to return.And, condenser lenses 65, light homogenizes part 66.
Blue laser, through beam shaping part 611 shrink beam shaping, makes hot spot reduce, and reaches dichroic mirror 641, dichroic
Mirror 641 can carry out angles and positions regulation.Blue light passes through incident fluorescence wheel 63 surface after dichroic mirror 641, when fluorescent wheel 63
When rotating to phosphor region, green emitting phosphor is excited generation green fluorescence, and green fluorescence is by fluorescent wheel 63 head-on reflection, directive two
To Look mirror 641, dichroic mirror 641 reflection green fluorescence is towards condenser lenses 65 outgoing.When fluorescent wheel 63 rotates to blue light transmission
Qu Shi, blue laser is from fluorescent wheel 63 back side outgoing, and is back to dichroic mirror after being given to relaying loop lens set 632
641, wherein, relaying loop lens set includes reflecting mirror 671, reflecting mirror 672, dichroic mirror 642.Blue light through reflecting mirror 671,
672 reflection, and arrive again at dichroic mirror 641 after the reflection of dichroic mirror 642.
In optic path, spot size is less, is more beneficial to the reception of eyeglass, therefore during above-mentioned fluorescence excitation,
Beam shaping part 611 is telescopic system, for large spot is become undersized uniform light spots.And before being located at fluorescent wheel
Collimation lens set 631 afterwards（The lens group at the back side does not mark）The light beam dissipating can be collimated, such as to fluorescent light beam
It is being incident to dichroic mirror 641 after being collimated, row constraint is being entered to fluorescence hot spot.And, standard is carried out to the light beam of transmission
Reflecting mirror 671 is entered back into so that hot spot reaches pre-set dimension after straight.
And, after the red laser that red laser light source 62 sends reflects through reflecting mirror 673 in the same manner after shrink beam, directive
Dichroic mirror 642, dichroic mirror 642 is transmissive to HONGGUANG, and HONGGUANG also reaches dichroic mirror 641.Dichroic mirror 641 is transmissive to
HONGGUANG, thus, HONGGUANG, and the blue light after turning back all passes through, green reflection, finally trichroism primary lights combining output.
In above-mentioned framework, dichroic mirror 641, as the first adjustment element, can be changed by the adjustment of angles and positions
Become the facula position of the hot spot incidence posterior member of three kinds of light beams, to reaching the purpose of coincidence.
Reflecting mirror 671 or reflecting mirror 672 can be as the second adjustment elements, for facula position in turnover loop for the blue light
Adjustment.
In the present embodiment, do not set up light directing arrangement and standard target, but in fact, when being debugged, can will gather
Focus lens 65 position is set to light directing arrangement, and light homogenizes part 66 position setting standard target.
Because the effect that light homogenizes part 66 is to carry out homogenizing output by assorted hot spot, therefore it is required that assorted hot spot incident illumination
The position homogenizing part 66 should be consistent, even if otherwise homogenizing rear illuminance uniformity lifting, but still colour cast phenomenon occurs, color is not
Uniformly.
Therefore, in debugging, homogenize part 66 position in light and can substitute setting one standard target, homogenize for detection light
The hot spot distributing position of part 66 incidence surface.
And, in debugging process, light directing arrangement also includes plate, and guiding unthreaded hole is arranged on plate.Thus, when saturating
It is emitted through the transmitted light beam of dichroic mirror and the reflected beams through dichroic mirror can form hot spot when being radiated on plate, so as to
Enough clearly show that the relative position of this hot spot and guiding unthreaded hole, thus being beneficial to the angles and positions of the first adjustment element are carried out
Adjustment, so that the reflected beams can pass through.
And, target includes cross.Thus, it is easy to observe blue light hot spot, HONGGUANG hot spot and green glow hot spot and target
Registration, so that the angles and positions for the first adjustment element, the second adjustment element are adjusted correcting.
Or, target also includes circular mark, the center superposition of the circular target center of circle and cross.Because circular mark can show
Show certain limit, scale can be set, be therefore more favorable for observing the relative position apart from target center for the hot spot, be easy to adjust correction.
Specifically, above-mentioned light source is being carried out in assembling process, can first adjust the first adjustment element, i.e. dichroic
Mirror 641, dichroic mirror 641 can be found in described in embodiment one specifically, there is retractor device and gimbal structure, thus can
To carry out the Sloped rotating of angle, and the movement of position.For hot spot is misaligned be adjusted in the case of can be found in Fig. 5-
The introduction of 1, Fig. 5-2, repeats no more here.Herein, first adjust the first adjustment element benefit when, because the first adjustment element is
The closing light part of three kinds of light beams, when the position difference of three kinds of light beams is larger, first can be reached red sharp by this element of adjustment
Light hot spot and green laser hot spot reach preset range.And the regulation of blue light facula position can be separately through to the second adjustment element
671 adjustment, so completes the fine setting to blue light facula position, so can improve regulation efficiency.
And, in actual applications, due to blue light paths complexity it is also possible to the reflecting mirror in loop of first blue light being transferred enters
Row is adjusted, and such as reflecting mirror 671 and reflecting mirror 672 is adjusted, and first makes blue light hot spot reach predeterminated position.Then further according to
The position of green glow hot spot and HONGGUANG hot spot determines whether to continue to adjust, and if necessary to continue to adjust, then needs to finely tune dichroic mirror
641, to reduce the impact to blue light hot spot.
And, in actual applications, projection light source also includes timing control unit, can light sequential to LASER Light Source
It is controlled, can be lighted according to the feature timing of projection light source sequential export, detect that each hot spot is set with standard target successively
Position the degrees of offset put, or according to lighting two kinds of laser instrument simultaneously, the registration of two kinds of color hot spots can be observed simultaneously
Situation, final purpose is all so that finally trichroism hot spot reaches coincidence.
Eventually through the fine setting of dichroic mirror and the angles and positions of mirror elements, reach the facula position of three kinds of light beams
The state of coincidence is reached on standard target, thus in the light source assembling, entering light and homogenize part 66 during debugging
Each primary color light bundles hot spot registration is high, and then can be the x ray machine part offer evenness of rear end, the hot spot of uniform-illumination,
The color homogeneity of the image of projection is also preferable eventually.
And, further, illuminance uniformity can homogenize part real by arranging diffusion sheet or light in the optical path
Now so that spot energy distribution is uniform.
During the assembling and setting of above-mentioned light source, by transferring back to the dichroic mirror and blue light that play closing light effect
It is adjustable that reflecting mirror in road is set to angles and positions, causes light such that it is able to adjust to correct due to optical glass processing or assembling
Road error, the final incident illumination of three kinds of beam and focus of raising homogenizes the registration of part so that the high three primary colours hot spot of registration is equal
Unanimously homogenizing of part being homogenized by light, thus improve the uniformity of light source hot spot color, improve the picture of projected image
Display quality.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of light source colour uniformity adjusting apparatus are it is characterised in that include：
Calibration target, described calibration target is provided with target；
Between light directing arrangement, and described calibration target, there is setpoint distance, described light directing arrangement is provided with guiding unthreaded hole, institute
The diameter stating guiding unthreaded hole has setting value, and described target is centrally located on the axis of described guiding unthreaded hole；
And, the first light supply apparatuses, secondary light source device and the 3rd light supply apparatuses, described first light supply apparatuses, secondary light source dress
Put and the 3rd light supply apparatuses send the first light beam, the second light beam and the 3rd light beam, described first light beam, the second light beam and respectively
Three light beams colors are different；
Described first light beam, the second light beam and the 3rd light beam all can pass through calibrates target described in described guiding unthreaded hole directive, and
First hot spot, the second hot spot and the 3rd hot spot are formed respectively on described target；
First adjustment element, described first adjustment element to arbitrary in the first light beam, the second light beam, the 3rd light beam or any two
Light beam carries out transmission, and other two or another kind are reflected, and enters light directing arrangement standard target described in directive, described
First adjustment element can carry out angle or position adjustments.
2. adjusting apparatus according to claim 1 are it is characterised in that described 3rd light supply apparatuses are fluorescence light source, described
3rd light beam is the 3rd fluorescent light beam, and described first light supply apparatuses are the excitation source of described fluorescence light source.
3. adjusting apparatus according to claim 1 it is characterised in that described first light supply apparatuses be first laser light source,
Described first light beam is first laser light beam, and described secondary light source device is second laser light source, and described second light beam is second
Laser beam, the color of described first light beam and the second light beam is different.
4. adjusting apparatus according to claim 2 are it is characterised in that described 3rd light supply apparatuses include transmission area and fluorescence
Area, described transmission area is used for transmission first light beam, and described phosphor region is in opposite direction with described first beam Propagation for sending
3rd fluorescent light beam.
5. adjusting apparatus according to claim 2, also include the second adjustment element, and described second adjustment element is located at described
In the turnover light path of the first light beam, for reflecting to described first light beam.
6. adjusting apparatus according to claim 1 are it is characterised in that described first adjustment element includes support and eyeglass,
Described support and eyeglass are connected by universal joint.
7. adjusting apparatus according to claim 6 are it is characterised in that described support includes retractor device, described flexible dress
Put and be connected with described universal joint, described retractor device is used for stretching or shrinks, to adjust the height of described eyeglass.
8. adjusting apparatus according to claim 5 are it is characterised in that described second adjustment element can carry out angle rotation tune
Section or front and back position move.
9. adjusting apparatus according to claim 5 are it is characterised in that described second adjustment element may include more than one.
10. adjusting apparatus according to claim 1 are it is characterised in that also include time sequence control device, described sequencing contro
Device is used for the sequential of lighting of described first light supply apparatuses, secondary light source device and the 3rd light supply apparatuses is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805528.5A CN106383429A (en) | 2016-09-07 | 2016-09-07 | Light source color uniformity adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805528.5A CN106383429A (en) | 2016-09-07 | 2016-09-07 | Light source color uniformity adjusting device |
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| CN106383429A true CN106383429A (en) | 2017-02-08 |
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| CN201610805528.5A Pending CN106383429A (en) | 2016-09-07 | 2016-09-07 | Light source color uniformity adjusting device |
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| CN110543026A (en) * | 2019-10-12 | 2019-12-06 | 四川长虹电器股份有限公司 | three-piece type projection device |
| CN110597000A (en) * | 2018-06-13 | 2019-12-20 | 中强光电股份有限公司 | Illumination system, projection device and projection method of projection device |
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