CN106993171A - Projecting apparatus - Google Patents

Projecting apparatus Download PDF

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Publication number
CN106993171A
CN106993171A CN201611257548.XA CN201611257548A CN106993171A CN 106993171 A CN106993171 A CN 106993171A CN 201611257548 A CN201611257548 A CN 201611257548A CN 106993171 A CN106993171 A CN 106993171A
Authority
CN
China
Prior art keywords
projection
lens
camera
projecting
projection lens
Prior art date
Application number
CN201611257548.XA
Other languages
Chinese (zh)
Inventor
市枝博行
浅见健
浅见健一
吉田宽治
Original Assignee
精工爱普生株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP2016008573 priority Critical
Priority to JP2016-008573 priority
Priority to JP2016197830A priority patent/JP2017129839A/en
Priority to JP2016-197830 priority
Application filed by 精工爱普生株式会社 filed Critical 精工爱普生株式会社
Publication of CN106993171A publication Critical patent/CN106993171A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/142Adjusting of projection optics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179Video signal processing therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179Video signal processing therefor
    • H04N9/3185Geometric adjustment, e.g. keystone or convergence

Abstract

The present invention provides a kind of projecting apparatus, and the projection distance of appropriate composition or configuration be not yet sufficiently carried out considering to(for) built-in camera are configured as into its technical problem to be solved.Projecting apparatus possesses:Projection lens;First camera section, shoots the projection surface;And second camera section, the projection surface is shot with the angle of visual field wider than the first camera section.The first camera section is configured to be upwardly deviated from the first distance in the side perpendicular to the optical axis relative to the optical axis of the projection lens, and the second camera section is configured to the second distance of optical axis first distance described in departure ratio on the direction perpendicular to the optical axis relative to the projection lens.

Description

Projecting apparatus

Technical field

The present invention relates to projecting apparatus.

Background technology

It is known it is a kind of the projection state of projecting apparatus is shot by built-in camera and determine projection color, projection position Put etc. and automatically carry out the system (patent document 1,2) of appropriate correction.

Prior art literature

Patent document

Patent document 1:Japanese Unexamined Patent Publication 2015-167341 publications

Patent document 2:Japanese Unexamined Patent Publication 2014-197739 publications

However, the projection distance that generally there is projecting apparatus is set as various feelings according to the behaviour in service of projecting apparatus Condition.Built-in camera is needed to be shot regardless of the projection distance of projecting apparatus to the state of screen (projection surface).But It is that in the past, actual conditions are not yet to be sufficiently carried out considering the appropriate composition of projection distance for built-in camera or match somebody with somebody The design put.

The content of the invention

The present invention is made at least a portion solved the above problems, can be used as following mode or application Example is realized.

(1) according to the mode of the present invention, there is provided the projecting apparatus that image is projeced into projection surface.The projecting apparatus possesses:Throw Penetrate lens;First camera section, shoots the projection surface;And second camera section, with the angle of visual field wider than the first camera section To shoot the projection surface.The first camera section is configured to the optical axis relative to the projection lens perpendicular to the optical axis Side be upwardly deviated from the first distance, the second camera section is configured to the optical axis relative to the projection lens perpendicular to described The second distance of first distance described in departure ratio on the direction of optical axis.

According to the projecting apparatus, because the second camera section that projection surface is shot by the broader angle of visual field is configured compared to projection The farther position of the optical axises of lens, therefore, it is possible to prevent the wide visual field angle of second camera section and the profile of projection lens from occurring dry Disturb.

(2) can be that the projecting apparatus is also equipped with:Lens installation portion, for the first projection lens and use projected at a distance The lens installation portion is installed in the way of it can change in the second projection lens of short range projection;Lens information acquiring section, Projection lens identification information is obtained, the projection lens identification information is used to recognize that the projection for being installed on the lens installation portion is saturating Mirror;And control unit, when the projection lens identification information shows that first projection lens is installed on the lens installation portion When, the control unit makes the first camera section shoot the projection surface, when the projection lens identification information shows described the When two projection lens are installed on the lens installation portion, the control unit makes the second camera section shoot the projection surface.

According to this composition, it can be shot according to mounted projection lens with appropriate image pickup part.

(3) can be that the projection lens is can to change the zoom lens of focal length in above-mentioned projecting apparatus, it is described Projecting apparatus is also equipped with:Lens information acquiring section, obtains the zoom information for the focal length for showing the projection lens;And control Portion, when the zoom information shows the focal length to be more than predetermined threshold value, the control unit makes first shooting Portion shoots the projection surface, and when the zoom information shows the focal length deficiency threshold value, the control unit makes institute State second camera section and shoot the projection surface.

According to this composition, it can be shot according to the focal length of projection lens with appropriate image pickup part.

(4) in above-mentioned projecting apparatus, can be the first camera section and the second camera section have it is different from each other Outward appearance.

According to this composition, when undesirable condition occurs for any image pickup part in first camera section and second camera section, projection The user of instrument can judge which image pickup part there occurs undesirable condition exactly.

(5) can be that above-mentioned projecting apparatus is also equipped with adjustment portion, the adjustment portion is according to by the first camera section or described Photographed images that second camera section is photographed and the regulation for be projeced into the projects images of the projection surface.

, can be based on the photographed images photographed by first camera section or second camera section come suitably according to this composition Regulation is projeced into the projects images of projection surface.

The present invention can realize in a variety of ways, for example, can be with projecting apparatus and its control method, above-mentioned for realizing The computer program of function, non-transitory recording medium (the non-transitory storage for recording the computer program ) etc. medium various modes are realized.

Brief description of the drawings

Fig. 1 is the front view for showing to be provided with the state of the projection lens for projecting at a distance in projecting apparatus.

Fig. 2 is Fig. 1 viewed from above perspective view.

Fig. 3 is the front view for showing to install the state of the projection lens for short range projection in projecting apparatus.

Fig. 4 is Fig. 3 viewed from above perspective view.

Fig. 5 is the figure of an example of the outward appearance for showing the first video camera and the second video camera.

Fig. 6 is the figure of other of the outward appearance for showing the first video camera and the second video camera.

Fig. 7 is the figure of another other of the outward appearance for showing the first video camera and the second video camera.

Fig. 8 is the functional block diagram of the projecting apparatus of first embodiment.

Fig. 9 is the functional block diagram of the projecting apparatus of second embodiment.

Description of reference numerals

100 ... projecting apparatus;110 ... front panels;200 ... projection units;210 ... first projection lens;220 ... second projections are saturating Mirror;230 ... lens installation portions;240 ... modulating sections;250 ... light sources;260 ... zoom lens;300 ... image pickup parts;310 ... One video camera;320 ... second video cameras;400 ... control units;500 ... guidance panels;600 ... projects images generating units;610… Projects images memory;620 ... adjustment portions;700th, 700a ... lens information acquiring section;CX ... optical axises;D1, D2 ... lens are protruded Amount;The distances of L1 ... first;L2 ... second distances;LID ... lens recognize signal;SC ... projection surfaces;θ 1, θ 2 ... the angles of visual field.

Embodiment

A. the configuration of the projection lens of projecting apparatus and built-in camera

Fig. 1 is the main view for showing to be provided with the state of the first projection lens 210 for projecting at a distance in projecting apparatus 100 Figure, Fig. 2 is Fig. 1 viewed from above perspective view.The first projection lens 210 is provided with the front panel 110 of projecting apparatus 100 and right It is projeced into two built-in cameras 310,320 that the image of projection surface is shot.First projection lens 210 is can change Mode is arranged on lens installation portion 230.As shown in Fig. 2 the lens barrel of the first projection lens 210 protrudes overhang from front panel 110 D1。

First video camera 310 is the first camera section for longshot, and the second video camera 320 is to be used to closely take the photograph The second camera section of shadow.The video camera 310,320 preferably has more than one difference in following (1)~(3), and following (1) are Most typical difference.

(1) angle of visual field θ 2 (Fig. 2) ratios for the second video camera 320 of close-range photography are used for the first of longshot The angle of visual field θ 1 of video camera 310 is wide.

(2) it is used for the focal position of the second video camera 320 of close-range photography than the first photography for longshot The focal position of machine 310 is near.

(3) resolution ratio for the second video camera 320 of close-range photography is used for the first video camera of longshot 310 resolution ratio is low (pixel count is few).

The first video camera 310 for longshot is configured to hang down in the optical axis CX relative to the first projection lens 210 Directly on optical axis CX direction separated first apart from L1 position.The second video camera 320 for close-range photography is configured in phase For the first projection lens 210 optical axis CX on the direction perpendicular to optical axis CX second distance of the splitting ratio first apart from L1 length L2 position.Its reason is described below.

Fig. 3 is the main view for showing to be provided with the state of the second projection lens 220 for short range projection in projecting apparatus 100 Figure, Fig. 4 is Fig. 3 viewed from above perspective view.As shown in figure 4, the lens barrel of the second projection lens 220 is protruded from front panel 110 Overhang D2.In typical example, the overhang D2 ratios for the second projection lens 220 of short range projection are used for remote The overhang D1 (Fig. 2) of first projection lens 210 of projection is big.Its reason be with shorter apart from the second of projects images The aperture of lens of the projection lens of projection lens 220 to the first 210 is big, and there is also elongated trend for lens barrel.

As described above, the second video camera 320 for close-range photography is configured than being taken the photograph for the first of longshot Shadow machine 310 is further from the position of projection lens 210,220.Its reason is the second video camera 320 for being generally used for close-range photography The angle of visual field than the first video camera 310 for longshot, with a wide angle of view, therefore, if the second video camera 320 is configured In the position close to projection lens 220, then the lens barrel of projection lens 220 can enter the angle of visual field of the second video camera 320, therefore can The entirety of projects images on screen cover can not can be shot.Can be to the whole of the projects images on screen cover in addition, working as When body is shot, if the lens barrel of projection lens 220 enters the angle of visual field of the second video camera 320, it is likely that cause projection The lens barrel reflection exterior lights of lens 220 and incident second video camera 320 of the reflected light, and produce in photographed images larger make an uproar Sound.The possibility that these undesirable conditions are produced is used in the overhang D2 ratios of the second projection lens 220 for short range projection In the case that the overhang D1 (Fig. 2) of the first projection lens 210 projected at a distance is big, or the second projection lens 220 mouth It is more notable in the case that footpath is bigger than the bore of the first projection lens 210.Here, projecting apparatus 100 front panel 110 it is limited Space in, while design is considered, and in order to which above-mentioned influence is limited into minimum, with first for longshot Video camera 310 is compared, and the second video camera 320 for close-range photography is configured at into the optical axis apart from projection lens 210,220 Position farther CX.

In addition, when changing distance (projection distance) of projecting apparatus 100 and projection surface, video camera 310,320 is configured to Optical axis CX apart from projection lens 210,220 is more remote, then the change of the position of the projects images in photographed images is bigger.However, Configuration is in the visual field of the second farther the optical axis CX apart from projection lens 210,220 video camera 320 compared with the first video camera 310 Angle because than the first video camera 310, with a wide angle of view, even if therefore projects images in photographed images change in location, also can It is contained in the angle of visual field.

Can be the example such as Fig. 1~Fig. 4 each other in transverse direction in addition, as the allocation position relation of video camera 310,320 (horizontal direction) is configured in the way of arrangement, or can also be configured centered on the optical axis CX of projection lens 210,220 The optional position of the position of concentric circles etc.., can also be with addition, in the case where projecting apparatus sets the video camera of more than three The mode that the wider video camera of the angle of visual field is configured in position more remote the optical axis CX apart from projection lens 210,220 is configured successively.

In addition, projection lens 210,220 lens barrel enter video camera 310,320 the angle of visual field in the case of, preferably with The relatively low material of reflectivity (such as diffuse-reflective material with fine irregularities) makes the lens barrel of projection lens 210,220.

Additionally, it is preferred that the configuration of video camera 310,320 is in the optical axis CX of projection lens 210,220 top.Its reason is, when If projecting apparatus 100 be placed in, desk etc. is upper in use, video camera 310,320 is configured in downside, and desk etc., which can enter, to be taken the photograph In the angle of visual field of shadow machine 310,320, therefore there is a possibility that the entirety of the projects images on screen cover can not be shot. In addition, in the case where that can be shot to the entirety of projects images, if desk etc. enters the visual field of video camera 310,320 Angle, then reflect the incident video camera 310,320 of exterior light and the reflected light in desk etc., then exist produced in photographed images it is larger Noise possibility.Especially, the second video camera 320 that with a wide angle of view, it is easier to produce this undesirable condition, therefore, The second video camera can be configured in the position of the top of the first video camera 310.

Fig. 5, Fig. 6, Fig. 7 are the figures of the various examples for the outward appearance for showing the first video camera 310 and the second video camera 320. In the example, by the outward appearance of the first video camera 310 for longshot and the second video camera 320 for close-range photography It is set to the video camera that can be easily recognized with naked eyes each other.Consequently, it is possible to when any video camera in video camera 310,320 is produced During undesirable condition, the user of projecting apparatus 100 can clearly judge which video camera to generate undesirable condition, Neng Goushun at Seeked advice from etc. to Support center on sharp ground.In addition, when a video camera produces undesirable condition, the replacing of display reminding video camera Information, and can be shown by word or diagram etc. change object video camera outward appearance feature.In addition, by dish The feature of the outward appearance of video camera in being shown with single-image etc. with word or diagram etc., so as to make user's identification current Which video camera used.

B. the functional block diagram of the projecting apparatus of first embodiment

Fig. 8 is the functional block diagram of the projecting apparatus of first embodiment.Projecting apparatus 100 has control unit 400, guidance panel 500th, projection unit 200, projects images generating unit 600, lens information acquiring section 700 and image pickup part 300.Image pickup part 300 has Above-mentioned the first video camera 310 for longshot and the second video camera 320 for close-range photography.

Control unit 400 carries out the control of each several part inside projecting apparatus 100.In addition, control unit 400 has following function, The information obtained according to lens information acquiring section 700, makes any photography in the first video camera 310 and the second video camera 320 Machine is shot to projection surface SC (screen cover).

Projects images generating unit 600 has the work(for generating the projects images projected by projection unit 200 on projection surface SC Can, and the adjustment portion 620 of the projects images memory 610 with storage projects images and regulation projects images.

Adjustment portion 620 is projected according to the photographed images photographed in the first video camera 310 or the second video camera 320 In the regulation processing of projection surface SC projects images.Regulation processing preferably comprises such as trapezoidal distortion of correction projects images The color correction of keystone, projects images.In the case where carrying out the color correction of projects images, projected from projection unit 200 For the measure pattern for the color for determining projection light, projection color, correction are determined by the first video camera 310 or the second video camera The color of projection light.Specifically, the yield value of the balance of red, green, blue for adjusting multiple gray levels is calculated or for school The correcting value of the brightness of positive gamma characteristic, correction data of each point even for irregular colour in rectifying plane etc..Then, adjustment portion 620 perform correction using these corrected values, so that the projection light of projecting apparatus 100 has desired tone.

There are projection unit 200 projects images for generating projects images generating unit 600 to be incident upon the function on projection surface SC. Projection unit 200 is in addition to projection lens 210 illustrated in fig. 1 and projection installation portion 230, with modulating sections 240 and light source 250.Modulating sections 240 by according to the projects images data supplied by projects images memory 610 come to from light source 250 Light is modulated and forms projects images light.The projects images just typically include the cromogram of the visible ray of the colors of RGB tri- As light, it is projeced into by projection lens 210 on projection surface SC.In addition, as light source 250, except the light source of extra-high-pressure mercury vapour lamp etc. , can be using various light sources such as light emitting diode or laser diodes outside lamp.In addition, as modulating sections 240, can use Transmission-type or the liquid crystal panel or DMD of reflection-type etc. or possess the different multiple modulating sections of coloured light 240 composition.

Lens information acquiring section 700 obtains projection lens identification information, and projection lens identification information identification is arranged on saturating The projection lens 210 (or 220) of mirror installation portion 230.In the example of fig. 8, lens installation portion 230 and projection lens 210 (or 220) coupling part will show that the lens of the value of judgement position recognize signal LID provided with physical or electrical resistance judgement position Lens information acquiring section 700 is supplied to from lens installation portion 230.Lens information acquiring section 700 recognizes signal according to the lens LID, obtains the projection lens identification information for the projection lens 210 (or 220) that identification is currently installed on, so as to be supplied to control Portion 400.Control unit 400 judges that in the installation of lens installation portion 230 be two projection lens according to the projection lens identification information 210th, in 220 which.When lens installation portion 230 installs the first projection lens 210, control unit 400 passes through the first video camera 310 couples of projection surface SC are shot.On the other hand, when lens installation portion 230 installs the second projection lens 220, second is passed through Video camera 320 is shot to projection surface SC.So, can be from video camera 310,320 according to the projection lens of actual installation The appropriate video camera of selection is shot.

In addition, being obtained according to user using the instruction of guidance panel 500 or remote control (not shown) instead of lens information Portion 700 is taken to recognize signal LID from the receiving lens of lens installation portion 230, so as to obtain the projection lens that identification is currently installed on The projection lens identification information of 210 (or 220).

C. the functional block diagram of the projecting apparatus of second embodiment

Fig. 9 is the functional block diagram of the projecting apparatus of second embodiment.With the difference of the first embodiment shown in Fig. 8 Be use can change the projection lens 210 that the replacement of zoom lens 260 of focal length (angle of visual field) can change and Lens information acquiring section 700a obtains this 2 points of the zoom information for the focal length for showing zoom lens 260, other compositions and the One embodiment is identical.

Lens information acquiring section 700a obtains the zoom information for the focal length for showing zoom lens 260.Specifically, example Such as it is possible to detect that the sensor of the zoom position of zoom lens 260 is previously installed at zoom lens 260, according to the zoom of detection Position obtains zoom information.When zoom information shows focal length to be more than predetermined threshold value, control unit 400 passes through first Video camera 310 is shot to projection surface SC.On the other hand, when zoom information shows that focal length is less than predetermined threshold value When, projection surface SC is shot by the second video camera 320.So, according to actual focal length, it can select to take the photograph The video camera being more suitable in shadow machine 310,320 is shot.

In addition, lens information acquiring section 700a can also detect the method beyond focal position by above-mentioned sensor To obtain focus information.For example, the image comprising predetermined pattern can be projeced into projection surface SC, with the second photography of wide-angle Machine 320 is shot to it, and zoom information is exported according to the position of the pattern in photographed images or size.

In addition, as zoom information, can replace the information of focal length, be not limited to only show focal length The information of its own.For example, showing that the information of zoom ratio, the information of the angle of visual field are also contained in " shows the zoom letter of focal length In breath ".In other words, zoom information can also be the information for the zoom state for showing zoom lens 260.

In addition, in the composition that zoom lens 260 can be changed as in the first embodiment, if according to the change of installation Focus lens change threshold value, then also according to the zoom lens and focal length of installation appropriate video camera can be selected to be clapped Take the photograph.In this case, lens information acquiring section 700a obtains projection lens identification information and zoom information, the basis of control unit 400 These information, select appropriate video camera.

In addition, the present invention is not limited to the above embodiments or embodiment, and in the range of its purport is not departed from, energy It is enough to be carried out in a variety of ways.

For example, being selected according to zoom information during video camera, the mode for directly being compared focal length and threshold value is not limited to, The form associated with video camera can be previously stored in (not shown) according to the comparative results of multiple zoom informations and threshold value Storage part, and video camera is selected according to the zoom information and form of acquisition.

In addition, for example, according to zoom information select video camera composition in, by relevant zoom lens 260 at focal length end With two kinds of wide-angle side in the case of wide-angle the second video camera 320 photographed images in projects images size (shooting throw Penetrate size) storage part is previously stored in, control unit 400 can be by the two shooting projected dimensions according to the zoom information of acquisition Actual shooting projected dimension is speculated between ratio is mended, shooting projected dimension by inference selects video camera.

Furthermore it is possible to the projection of the predetermined image of 320 pairs of projections of the second video camera of wide-angle (such as complete white image) Face is shot, the positions of projects images, size in detection photographed images, thus according to the position of the projects images of detection, Size selects video camera.

In addition, lens information acquiring section 700,700a, which can also be set to also obtain, shows projecting apparatus 100 and projection surface SC The mode of the projection distance information of distance (projection distance).Now, control unit 400 can select to take the photograph according to projection distance information Shadow machine, can change the threshold value for selecting video camera according to projection distance information.In addition, in order to obtain projection distance information and Triangulation can be utilized, the triangulation is using the projects images for being stored in projects images memory 610 and passes through the 320 pairs of one video camera 310 or the second video camera are projeced into the photographed images that projection surface SC projects images are shot.In addition, Can be installed in projection lens can obtain the sensor of focal position, and projection distance is calculated according to the focal position, can also Range sensor is set directly to determine projection distance.

In addition, can also be set to select the composition of video camera according to the regulation content of the implementation of adjustment portion 620.For example, Multiple projecting apparatus in the way of arranging in the way of projects images etc. in, adjust itself when the projects images according to other projecting apparatus During projects images, adjustment portion 620 needs to select that the projects images of itself can be shot, moreover it is possible to the throwing to other projecting apparatus Penetrate the video camera that image is shot.On the other hand, when the projects images according only to itself are adjusted, adjustment portion 620 is selected Select the video camera that can be at least shot to the projects images of itself.Now, regulation information acquiring section (not shown) is obtained Take the regulation content specified by guidance panel 500 or remote control at family and be used as regulation information, control unit 400 is according to the regulation Information selects appropriate video camera.In addition it is also possible to be configured to according to projection lens identification information and regulation information both Information, zoom information or regulation both information of information or projection lens identification information, zoom information and regulation information this three Information is planted to select video camera.

Claims (5)

1. a kind of projecting apparatus, it is characterised in that image is projeced into projection surface,
The projecting apparatus possesses:
Projection lens;
First camera section, shoots the projection surface;And
Second camera section, the projection surface is shot with the angle of visual field wider than the first camera section,
The first camera section is configured to be upwardly deviated from perpendicular to the side of the optical axis relative to the optical axis of the projection lens First distance,
The second camera section is configured to be upwardly deviated from perpendicular to the side of the optical axis relative to the optical axis of the projection lens Than the second distance of first distance.
2. projecting apparatus according to claim 1, it is characterised in that
The projecting apparatus is also equipped with:
Lens installation portion, for the first projection lens for projecting at a distance and for short range projection the second projection lens with energy The mode of replacing is installed on the lens installation portion;
Lens information acquiring section, obtains projection lens identification information, and the projection lens identification information is installed on institute for identification State the projection lens of lens installation portion;And
Control unit,
When the projection lens identification information shows that first projection lens is installed on the lens installation portion, the control Portion makes the first camera section shoot the projection surface,
When the projection lens identification information shows that second projection lens is installed on the lens installation portion, the control Portion makes the second camera section shoot the projection surface.
3. projecting apparatus according to claim 1, it is characterised in that
The projection lens is can to change the zoom lens of focal length,
The projecting apparatus is also equipped with:
Lens information acquiring section, obtains the zoom information for the focal length for showing the projection lens;And
Control unit,
When the zoom information shows the focal length to be more than predetermined threshold value, the control unit makes first shooting Portion shoots the projection surface,
When the zoom information shows the focal length deficiency threshold value, the control unit claps the second camera section Take the photograph the projection surface.
4. projecting apparatus according to any one of claim 1 to 3, it is characterised in that
The first camera section and the second camera section have outward appearance different from each other.
5. projecting apparatus according to any one of claim 1 to 4, it is characterised in that
The projecting apparatus is also equipped with adjustment portion,
The adjustment portion is projected according to by the photographed images that the first camera section or the second camera section are photographed In the regulation of the projects images of the projection surface.
CN201611257548.XA 2016-01-20 2016-12-29 Projecting apparatus CN106993171A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2016008573 2016-01-20
JP2016-008573 2016-01-20
JP2016197830A JP2017129839A (en) 2016-01-20 2016-10-06 projector
JP2016-197830 2016-10-06

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US20050179875A1 (en) * 2004-02-13 2005-08-18 Nec Viewtechnology, Ltd. Projector with a plurality of cameras
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CN202395858U (en) * 2011-12-14 2012-08-22 深圳市中控生物识别技术有限公司 Binocular photographic device
CN102967991A (en) * 2012-11-08 2013-03-13 广东欧珀移动通信有限公司 Method, device, system and mobile terminal for adjusting projector focal length
CN103002239A (en) * 2011-09-14 2013-03-27 株式会社理光 Projector device and operation detecting method
CN104079853A (en) * 2013-03-29 2014-10-01 精工爱普生株式会社 Projector and adjustment method
CN104853128A (en) * 2014-02-19 2015-08-19 株式会社理光 Projection system and projection method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030020814A1 (en) * 2001-07-25 2003-01-30 Fuji Photo Film Co., Ltd. Image capturing apparatus
US20050179875A1 (en) * 2004-02-13 2005-08-18 Nec Viewtechnology, Ltd. Projector with a plurality of cameras
CN101990079A (en) * 2009-08-04 2011-03-23 精工爱普生株式会社 Projector and trapezoidal distortion correcting method
CN102457692A (en) * 2010-10-28 2012-05-16 精工爱普生株式会社 Projector and method of controlling projector
CN103002239A (en) * 2011-09-14 2013-03-27 株式会社理光 Projector device and operation detecting method
CN202395858U (en) * 2011-12-14 2012-08-22 深圳市中控生物识别技术有限公司 Binocular photographic device
CN102967991A (en) * 2012-11-08 2013-03-13 广东欧珀移动通信有限公司 Method, device, system and mobile terminal for adjusting projector focal length
CN104079853A (en) * 2013-03-29 2014-10-01 精工爱普生株式会社 Projector and adjustment method
CN104853128A (en) * 2014-02-19 2015-08-19 株式会社理光 Projection system and projection method

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