CN1611982A - Image sensing device and electronic image sensing apparatus - Google Patents
Image sensing device and electronic image sensing apparatus Download PDFInfo
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- CN1611982A CN1611982A CN 200410085899 CN200410085899A CN1611982A CN 1611982 A CN1611982 A CN 1611982A CN 200410085899 CN200410085899 CN 200410085899 CN 200410085899 A CN200410085899 A CN 200410085899A CN 1611982 A CN1611982 A CN 1611982A
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Abstract
The invention provided an imaging unit capable of switching a prism unit to a 1st position and a 2nd position in accordance with the image pickup distance of a subject and more desirably realizing fc-adjustment. The imaging unit is equipped with the prism unit, an imaging device, a fixing member, a link mechanism and a switching member. The prism unit has at least two or more reflection surfaces formed as free curved surfaces. The imaging device is arranged on an image forming surface by the fixing member and converts an object image formed by the prism unit into an electrical signal. The link mechanism couples the fixing member and the prism unit in terms of operation and parallelly moves the prism unit in a direction orthogonal to the light receiving surface of the imaging device while holding the attitude of the prism unit. The switching member selectively positions and holds the prism unit at the 1st position and the 2nd position in the direction orthogonal to the light receiving surface.
Description
Technical field
The present invention relates to be applicable to the camera head of the mobile phone etc. of digital camera, subsidiary camera, relate in particular to the prism of free form surface is adopted in use on reflecting surface etc. camera head, and the image sensing equipment that uses this camera head.
Background technology
In recent years, as the employed camera head of the mobile phone of digital camera and subsidiary camera, applied for the camera head of the optical system of the coaxial system of a lot of uses.So-called coaxial system is meant that optical element such as lens is configured to the rotational symmetric optical system of optical axis (axle that connects the center of the diaphragm of camera system and camera picture) with respect to optical system.For example following patent documentation 1～3 disclosed content of the camera head of coaxial system.
The nearest digital camera and the mobile phone of subsidiary camera are required miniaturization, slimming, high performance, have used in the camera head of optical system of coaxial system at these equipment, want to compress the size of camera head, must reduce the quantity of lens.But, if reduce the quantity of lens, then be difficult to suppress the aberration that optical system produced very little, make picture quality low.In addition, want to improve picture quality, must increase the quantity of lens, its result has produced camera head and has become big problem.
In order to address these problems, proposed to use the camera head of decentered optical system.For example, following patent documentation 4～6 has been put down in writing and has been used the camera head of using the image pickup optical system of prism, and wherein, this prism uses free form surface etc.
The technical goal of these patent documentations 4～6 records is, uses prism to form image pickup optical system, by use free form surface on light entrance face, light-emitting face or the light reflection surface of this prism, can obtain small-sized and the good image of picture quality.Especially in patent documentation 5 (spy opens the 2002-196243 communique) and patent documentation 6 (spy opens the 2003-84200 communique), put down in writing following technology, make up two prisms, near the light entrance face of the 1st prism of object side, reflecting surface, light-emitting face and near the light entrance face of the 2nd prism of shooting face side, two reflectings surface, light-emitting face totally 7 faces all use free form surface.
As the feature of this optical system, according to following reason, can make integral miniaturization, improve picture quality simultaneously.
(1) reflecting surface with 3 faces uses the free form surface with focal power (refractive index), and these reflectings surface are not subjected to the influence of aberration with respect to dioptric systems such as lens when can obtaining big focal power.
(2) in the space of compactness, can have 7 optical surfaces.Therefore, optics can be set compactly in limited space.
(3) in order to improve optical property, the optical length of preferred optical system integral body has certain length, by using this prism optical system, makes the light path complications, thereby, increased optical length, make whole size realize miniaturization.
In addition, open in the optical system of flat 7-333505 communique record the spy, constitute by catoptron, the formed optical system of lens, catoptron successively from object side, but, compare with this mode, the optical system of patent documentation 5 and patent documentation 6 records can form littler transverse width, therefore, can provide the camera head of more miniaturization.
[patent documentation 1] spy opens the 2001-272587 communique
[patent documentation 2] spy opens the 2002-267928 communique
[patent documentation 3] spy opens the 2002-320122 communique
[patent documentation 4] spy opens flat 11-326766 communique
[patent documentation 5] spy opens the 2002-196243 communique
[patent documentation 6] spy opens the 2003-84200 communique
Consider that above-mentioned camera head is under the situation of the mobile phone that is used for small-sized, slim digital camera or subsidiary camera, the visual angle of image pickup optical system is set at the wide-angle class and becomes the method for pan focus (though set for is fixed-focus, is roughly clear focusing) in whole subject distance range.
In addition,, produced to use and the digital camera of this camera head has been installed or the mobile phone of subsidiary camera reads bar code, perhaps read the demand of literal such as books, original copy as nearest trend.In order to satisfy these demands, need to be fit to the mechanism of macroshot in the camera head of pan focus, still, there is not record in the above-mentioned patent documentation 1～6 about this technology.
In addition, under the situation of producing this camera head in batches, since the deviation in the dimensional discrepancy of each parts of the maintenance frame of optical system and optical system, characteristic deviation, the combination etc., the very difficult shooting face that exactly shot object image is imaged on the imaging apparatus that is used for reading images.
In order to address this problem, in each imaging apparatus, must carry out focusing surface adjustment (being called fc later on adjusts), make position and imaging relation of plane the best of the plane of incidence of imaging apparatus, but, about the fc adjusting mechanism not record in above-mentioned patent documentation 1～6 that is fit to this camera head.In addition, it is not open to utilize a spot of parts to realize being fit to these two method and device of the mechanism of above-mentioned little photography and fc adjusting mechanism yet.
Summary of the invention
Therefore, the objective of the invention is to, a kind of camera distance according to subject is provided, prism unit can be switched to the 1st position and the 2nd position, preferably also can carry out the camera head that fc adjusts, and the image sensing equipment that utilizes this camera head.
One of the present invention is used for from the object incident beam, and obtain the camera head of the electric signal corresponding with the object picture, it is characterized in that, have: prism unit, it is used for the light beam of incident from object, and forms the object picture on imaging surface, has the reflecting surface of two or more free form surface shapes at least, incident is from the incident light axis of the light beam of object and roughly parallel to each other to the ejaculation optical axis of above-mentioned imaging surface outgoing beam from this prism unit, and the interval with regulation; Imaging apparatus, it is configured on the above-mentioned imaging surface, and the formed object of above-mentioned prism unit is looked like to be converted to electric signal; Fixed part, it is used for fixing above-mentioned imaging apparatus; Bindiny mechanism, it can connect said fixing parts and above-mentioned prism unit with moving, so that when keeping the posture of above-mentioned prism unit, moves above-mentioned prism unit along parallel with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus; Switching part, its along with the direction of above-mentioned sensitive surface quadrature, selectively above-mentioned prism unit location is remained on above-mentioned the 1st position and than farther above-mentioned the 2nd position of the above-mentioned sensitive surface of distance, above-mentioned the 1st position.
The present invention's two camera head, it is characterized in that, in one of the present invention's camera head, above-mentioned the 1st position be for example corresponding object that will take the position from the position of stipulating to the situation the infinite distance roughly, the standard camera site of taking, above-mentioned the 2nd position is the position situation nearer than the position of afore mentioned rules of for example corresponding object that will take, the microshot position of taking.
The present invention's three camera head, it is characterized in that, in one of the present invention's camera head, above-mentioned prism unit has two prisms and is configured in diaphragm parts between them, and each prism has the reflecting surface of a free form surface shape, the light-emitting face that has the light entrance face of focal power and have focal power respectively at least.
The present invention's four camera head, it is characterized in that, in one of the present invention's camera head, has the manual operation switching part, itself and above-mentioned switching part interlock switch to above-mentioned switching part above-mentioned prism unit location are remained on the above-mentioned the 1st locational the 1st desired location or above-mentioned prism unit location is remained on the above-mentioned the 2nd locational the 2nd desired location.
The present invention's five camera head is characterized in that, in one of the present invention's camera head, the said fixing parts have the 1st and connect support sector; Above-mentioned prism unit has the 2nd and connects support sector; Above-mentioned bindiny mechanism has in the way of separately the end and the other end the 1st arm and the 2nd arm by the mutual pivotal support of supporting pin; One end of above-mentioned the 1st arm is connected the support portion pivotal support by the above-mentioned the 1st, and the other end is connected the support portion by the above-mentioned the 2nd and can be slidably supported; One end of above-mentioned the 2nd arm is connected the support portion pivotal support by the above-mentioned the 2nd, and the other end is connected the support portion by the above-mentioned the 1st and can be slidably supported.
The present invention's six camera head, it is characterized in that, in the present invention's five camera head, above-mentioned switching part can move along the direction parallel with the sensitive surface of above-mentioned imaging apparatus above-mentioned prism unit location being remained on the above-mentioned the 1st locational the 1st desired location and above-mentioned prism unit location being remained between the 2nd locational the 2nd desired location; And have an abutting part, its by with a part of butt of above-mentioned supporting pin or above-mentioned prism unit, come selectively location positioning with above-mentioned prism unit in above-mentioned the 1st position and above-mentioned the 2nd position.
The present invention's seven camera head, it is characterized in that, in the present invention's six camera head, above-mentioned abutting part has respectively above-mentioned prism unit location is remained on the 1st abutting part on above-mentioned the 1st desired location and above-mentioned prism unit location remained on the 2nd abutting part on above-mentioned the 2nd desired location.
The present invention's eight camera head, it is characterized in that, in the present invention's seven camera head, has micro-adjusting mechanism, it is with above-mentioned the 1st abutting part or above-mentioned the 2nd abutting part is connected on the above-mentioned supporting pin or under the state on the part of above-mentioned prism unit, along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus inching being carried out in the position of above-mentioned prism unit.
The present invention's nine camera head, it is characterized in that, one of the present invention or five camera head in, have adjustment unit, it is along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus inching being carried out at least one position in above-mentioned the 1st position and above-mentioned the 2nd position.
The present invention's ten camera head, it is characterized in that, in the present invention's five camera head, above-mentioned switching part can move along the direction parallel with the sensitive surface of above-mentioned imaging apparatus above-mentioned prism unit location being remained on the above-mentioned the 1st locational the 1st desired location and above-mentioned prism unit location being remained between the above-mentioned the 2nd locational the 2nd desired location; Above-mentioned switching part has the 1st abutting part of a part of pushing above-mentioned supporting pin or above-mentioned prism unit when being positioned at above-mentioned the 1st desired location and push the 2nd abutting part of the part of above-mentioned supporting pin or above-mentioned prism unit when being positioned at above-mentioned the 2nd desired location.
The present invention's 11 camera head, it is characterized in that, in the present invention's seven camera head, has micro-adjusting mechanism, it is by carrying out inching to above-mentioned the 1st abutting part, carry out along with the inching to the 1st position of above-mentioned prism unit of the direction of the sensitive surface quadrature of above-mentioned imaging apparatus.
The present invention's 12 camera head, be used for from the object incident beam, obtain the electric signal corresponding with the object picture, it is characterized in that having: prism unit, it is used for the light beam of incident from object, on imaging surface, form the object picture, reflecting surface with at least two above free form surface shapes, incident from the incident light axis of the light beam of object with roughly parallel to each other to the ejaculation optical axis of above-mentioned imaging surface outgoing beam from this prism unit, and interval with regulation; Imaging apparatus, it is configured on the above-mentioned imaging surface, and the formed object of above-mentioned prism unit is looked like to be converted to electric signal; Fixed part, it is used for fixing above-mentioned imaging apparatus; Support component, it is used to support above-mentioned prism unit; Bindiny mechanism, it can connect said fixing parts and above-mentioned prism unit with moving so that when keeping the posture of above-mentioned prism unit, along with the sensitive surface quadrature of above-mentioned imaging apparatus to the parallel prism unit that moves by above-mentioned support component supported; Switching part, its along with the direction of above-mentioned sensitive surface quadrature, will remain on above-mentioned the 1st position selectively by the prism unit location that above-mentioned support component supported or than farther above-mentioned the 2nd position of the above-mentioned sensitive surface of distance, above-mentioned the 1st position; Micro-adjusting mechanism, its along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus, the relative position relation of above-mentioned support component and above-mentioned prism unit is carried out inching.
According to camera head of the present invention, can be according to the camera distance of subject, along prism unit being switched near the 1st position of imaging apparatus with away from the 2nd position of imaging apparatus with the direction of the sensitive surface quadrature of imaging apparatus, when the posture that keeps prism unit is parallel, switch.Therefore, camera head can be set two different focal positions, and two shooting settings can selecting to obtain are thus made a video recording.
Description of drawings
Fig. 1 is the stereographic map of digital camera that possesses the camera head of the present invention's the 1st embodiment.
Fig. 2 is the sectional view that schematically shows the inside of digital camera shown in Figure 1.
Fig. 3 is the side view of the prism unit of digital camera shown in Figure 1.
Fig. 4 is the exploded perspective view of prism unit shown in Figure 3.
Fig. 5 is the stereographic map of the 1st prism of prism unit shown in Figure 3.
Fig. 6 is the stereographic map of the 2nd prism of prism unit shown in Figure 3.
Fig. 7 is the stereographic map of the diaphragm parts of prism unit shown in Figure 3.
Fig. 8 is the front view of the diaphragm parts of prism unit shown in Figure 3.
Fig. 9 is the rear view of the diaphragm parts of prism unit shown in Figure 3.
Figure 10 is the stereographic map of prism unit shown in Figure 3.
Figure 11 is the 1st prism of prism unit shown in Figure 3 and the side view of the 2nd prism.
Figure 12 is located at the exploded perspective view of the camera head in the digital camera shown in Figure 1 in being.
Figure 13 is the stereographic map of camera head shown in Figure 12.
Figure 14 is the stereographic map that expression is removed the back state with the housing parts and the prism unit of camera head shown in Figure 13.
Figure 15 is the vertical view of expression from the partly cut-away of the state of the light incident side observation of camera head shown in Figure 13.
Figure 16 is the side view of expression from the partly cut-away of the state of the 2nd prism side observation of camera head shown in Figure 13.
Figure 17 is the side view of switching mechanism when the 1st desired location of expression camera head shown in Figure 13.
Figure 18 is the sectional view of camera head shown in Figure 17.
Figure 19 is the side view of switching mechanism when the 2nd desired location of expression camera head shown in Figure 13.
Figure 20 is the sectional view of camera head shown in Figure 19.
Figure 21 is the exploded perspective view of the camera head of expression the present invention the 2nd embodiment.
Figure 22 is the side view of expression from the partly cut-away of the state of the 2nd prism side observation of camera head shown in Figure 21.
Figure 23 represents the side view of switching mechanism when the 1st desired location of camera head shown in Figure 21.
Figure 24 is the sectional view of camera head shown in Figure 23.
Figure 25 is the side view of switching part when the 2nd desired location of expression camera head shown in Figure 21.
Figure 26 is the sectional view of camera head shown in Figure 25.
Figure 27 extracts the adjusting mechanism of camera head of the present invention's the 3rd embodiment and the stereographic map that supporting pin is represented out.
Figure 28 is the figure that schematically shows the position relation when observing switching mechanism shown in Figure 27, micro-adjusting mechanism and supporting pin from the side.
Figure 29 be among expression the present invention as other examples of image sensing equipment, the stereographic map of the mobile phone of subsidiary camera is shown.
Figure 30 is another the routine sectional view that schematically shows prism optical system.
Figure 31 is the sectional view of an example again that schematically shows prism optical system.
Figure 32 is the sectional view of an example again that schematically shows prism optical system.
Embodiment
At first, referring to figs. 1 through Figure 20, being example with the camera describes the image sensing equipment of the present invention's the 1st embodiment.As shown in Figure 1, digital camera 1 has shutter release button 20, flashlamp 21, finder optical system 22, image pickup optical system 23 and picture monitor 24 (with reference to Fig. 2) towards the outer setting of casing 2.As shown in Figure 2, be provided with in the casing 2 camera head 10 of the major part that constitutes image pickup optical system 23, as the image processing circuit 25 of processing unit and as the recording portion 26 of record cell etc.The effect of image processing circuit 25 is the electric treatment of stipulating by the electric signal that camera head 10 is obtained, and obtains view data.Recording portion 26 is used for the recording medium that the Imagery Data Recording from image processing circuit 25 is being suitable for as record cell.
As shown in Figure 3, the 1st prism 41 is the decentered prisms that are made of the plane of incidence 51, the asymmetrical reflecting surface 52 of rotation and exit facet 53.As shown in Figure 5, the exterior lateral area that has at the 53a of effective diameter portion of light path of the exit facet 53 of the 1st prism 41 forms smooth planar portions 53b.Planar portions 53b has and forms columned two location division 53c, 53d and form hemisphere planar three jut 53e, 53f, 53g.Location division 53c, 53d are arranged on the outer fix of the 53a of effective diameter portion.In the present embodiment, as shown in Figure 4 and Figure 5, location division 53c, 53d be configured in along the direction of incident light axis λ i clip the crosscut effective diameter 53a of portion face A1 and the symmetry the position on.
As shown in Figure 3, the 2nd prism 42 is the decentered prisms that are made of the plane of incidence 61, reflecting surface 62, reflecting surface 63 and exit facet 64.It is asymmetric that in reflecting surface 62 and the reflecting surface 63 at least one forms rotation.As shown in Figure 6, the exterior lateral area that has at the 61a of effective diameter portion of light path of the plane of incidence 61 of the 2nd prism 42 forms smooth planar portions 61b.Planar portions 61b has and forms columned two location division 61c, 61d and form hemisphere planar three jut 61e, 61f, 61g.Location division 61c, 61d are arranged on the outer fix of the 61a of effective diameter portion.Location division 61c, 61d be configured in along the direction of emergent light axis λ o clip the crosscut effective diameter 61a of portion face A2 and the symmetry the position on.
Jut 61e, 61g are set on the outer fix of the location division 61c, the 61d that clip the 61a of effective diameter portion with respect to face A2.Jut 61f be set at the outside of the 61a of effective diameter portion, promptly with respect to face A2 than on the more close inner side of location division 61c, 61d.In addition, jut 61e, 61f, 61g on the plane of incidence 61 to be configured with respect to the asymmetrical mode of face A2.
To shown in Figure 9, diaphragm parts 43 possess that effective diameter with the optical effect face of two prisms 41,42 matches and the peristome 62a that constitutes as Fig. 7.And diaphragm parts 43 are also brought into play the function of the holding member of the relative position relation of keeping the 1st prism 41 and the 2nd prism 42.Have in the outside of peristome 62a on two faces of the close peristome 62a of diaphragm parts 43 and form plane planar portions 62b, 62c.
Be formed with location maintaining part 62d, 62e, 62f, 62g on planar portions 62b, the 62c.These location maintaining part 62d～62g forms the through hole that shape with location maintaining part 53c, 53c, 61c, 61d matches and can be chimeric on the position corresponding with location maintaining part 53c, 53d, 61c, the 61d of the 1st and the 2nd prism 41,42.
The example of the thickness H of diaphragm parts 43 is designed to H=1.12mm, and the example of the length t of the location division of the 1st and the 2nd prism 41,42 is designed to t=0.55mm respectively.At this moment, t/H=0.49.
The prism unit 30 of Gou Chenging is entrenched in the maintaining part 62d of location from the planar portions 62b side of the diaphragm parts 43 location division 53c with the 1st prism 41 like this, and location division 53d is entrenched among the maintaining part 62e of location.Thus, determined the position of the 1st prism 41 with respect to diaphragm parts 43.At this moment, be connected on the planar portions 62b of diaphragm parts 43, determine the degree of tilt of the 1st prism 41 with respect to diaphragm parts 43 by jut 53e, 53f, 53g with the 1st prism 41.
Equally, the location division 61c with the 2nd prism 42 is entrenched in the maintaining part 62f of location from the planar portions 62c side of diaphragm parts 43, and location division 61d is entrenched among the maintaining part 62g of location.Thus, determined the position of the 2nd prism with respect to diaphragm parts 43.At this moment, be connected on the planar portions 62c of diaphragm parts 43, determine the degree of tilt of the 2nd prism 42 with respect to diaphragm parts 43 by jut 61e, 61f, 61g with the 2nd prism 42.
Like this, as shown in figure 10, the 1st prism 41 and the 2nd prism 42 are maintained at the both sides of diaphragm parts 43.In addition, as shown in figure 11, one side's location maintaining part 62d, 62e and the opposing party's location maintaining part 62f, 62g are arranged on the different positions, make the straight line of the center of gravity by the 1st prism 41 and the center of gravity by the 2nd prism 42 straight line on the diaphragm parts 43 not on same straight line.
In the state of Figure 10, adjust under the situation of the 1st and the 2nd prism 41,42 with respect to the degree of tilt of diaphragm parts 43 at needs, by according to vergence direction and degree of tilt, with jut 61e, 61f, the 61g of jut 53e, 53f, 53g and the 2nd prism 42 of the 1st prism 41 ormal weight of pruning, can adjust the degree of tilt of the 1st prism 41 and the 2nd prism 42 simply.
As described above, the prism unit 30 of embodiment of the present invention has at least that the two sides is the reflecting surface 52,62,63 of free form surface shape.And incident constitutes at a distance of the interval of regulation and the prism optical system of almost parallel by being configured to the ejaculation optical axis λ of imaging surface 45 outgoing beams o from the incident light axis λ i of the light beam of object plane with from prism unit 30.According to such structure, prism unit 30 incidents of present embodiment are from the light beam of object, and form the object picture on imaging surface 45.
Next, use Figure 12～Figure 20, to describing with respect to the mechanism that on the sensitive surface of imaging apparatus 12 crisscross, especially moves the camera head 10 of the above prism unit 30 that illustrates on the orthogonal directions.For simplicity, in each figure, will be made as directions X, the orientation of the 1st prism 41 and the 2nd prism 42 will be made as the Y direction, will be made as the Z direction with the direction of directions X and Y direction quadrature respectively with the direction of the sensitive surface quadrature of imaging apparatus 12.As shown in figure 12, camera head 10 also possesses fixed part 13, housing parts 14, bindiny mechanism 15, switching part 16 and micro-adjusting mechanism 70 except above-mentioned prism unit 30 and imaging apparatus 12.
The box that housing parts 14 is configured to remove the face of fixed part 13 sides and covers prism unit 30, its inside is installed with prism unit 30.Housing parts 14 is provided with entrance window 14a in the part that the light beam that makes to the 1st prism 41 incidents of prism unit 30 passes through.Cover glass 14b is embedded among the entrance window 14a.As cover glass 14b, can use the IR glass-cutting.In addition, on the Z direction, be concaved with mounting hole 14d, 14e at totally 4 places near the 1st prism 41 and close the 2nd prism 42 of the both sides of housing parts 14 14c, it is used to insert the 2nd back shaft 14f, the 14g that connects the support portion as the 2nd of bindiny mechanism 15.
As Figure 15 and shown in Figure 16, prism unit 30 possesses holding plate 31, this holding plate 31 is configured to parallel by face A1, the A2 (X-Y plane) of incident light axis λ i and emergent light axis λ o, and upward clips the 1st prism 41 and the 2nd prism 42 from both sides at horizontal direction (Z direction).Holding plate 31 can form as one with diaphragm parts 43, also can be used as other parts and installs.In addition, the engagement pin 32 that extends in the Z direction is arranged on the both sides of holding plate 31, by being arranged on the connecting hole 14h on the housing parts 14, connects housing parts 14 and prism unit 30.Be provided with the 1st fine setting abutting part 31a that forms convexs to fixed part 13 towards 4 angles of the holding plate 31 of fixed part 13.
In addition, except being installed to prism unit 30 in the housing parts 14 by chimeric bayonet lock 32 and connecting hole 14h, also holding plate 31 directly can be adhesively fixed on the inner face of housing parts 14, with the inboard that prism unit 30 can be fixed on housing parts 14 except that the method these.
The end 15e of the 1st arm 15a is provided with rotation hole 15f, and other end 15g is provided with at the slotted hole 15h that has major diameter on the direction of the 1st arm 15a.The end 15p of the 2nd arm 15b is provided with rotation hole 15q, and other end 15r is provided with at the slotted hole 15s that has major diameter on the direction of the 2nd arm 15b.The 1st arm 15a and the 2nd arm 15b are at one end in the way of 15e, 15p and other end 15g, 15r, by the mutual pivotal support of supporting pin 15c.
And the end 15e of the 1st arm 15a is by the 1st back shaft 13f pivotal support of the 1st prism 41 sides, and other end 15g is supported slidably by the 1st back shaft 14g of the 2nd prism 42 sides.The end 15p of the 2nd arm 15b is by the 2nd back shaft 14f pivotal support of the 1st prism 41 sides, and other end 15r is supported slidably by the 1st back shaft 13g of the 2nd prism 42 sides.Pressing component 15d is that fulcrum rotates the 1st arm 15a and the 2nd arm 15b with supporting pin 15c, and pushes to overlapped direction.
In the present embodiment, in the 1st prism 41 sides, the 1st arm 15a and the 2nd arm 15b are respectively by the 1st back shaft 13f and the 2nd back shaft 14f pivotal support, but also can be in the 2nd prism 42 sides, make the 1st arm 15a by the 1st back shaft 13g pivotal support, the 2nd arm 15b is by the 2nd back shaft 14g pivotal support.In addition, as long as bindiny mechanism 15 can be connected and fixed parts 13 and prism unit 30 with moving, make with the direction of the sensitive surface quadrature of imaging apparatus 12 on keep its posture in the parallel mobile prism unit 30 and get final product, so, also can replace housing parts 14, use the support component that can connect prism unit 30 with respect to bindiny mechanism 15.
Switching part 16 has following function: along with the direction of the sensitive surface quadrature of imaging apparatus 12, selectively prism unit 30 location are remained on the 1st position (as an example, standard camera site as shown in Figure 2) P1 and Bi Di 1 position P1 2nd position (as an example, as shown in Figure 2 the microshot position) P2 far away apart from sensitive surface.As a kind of embodiment that can carry out this change action, in the present embodiment, as Figure 13～shown in Figure 16, switching part 16 is configured between bindiny mechanism 15 and the fixed part 13.Switching part 16 can move on the Y direction of arranging the 1st prism 41 and the 2nd prism 42.Switching part 16 has abutting part 16a and slide opening 16b.
Abutting part 16a be connected to the 1st arm 15a and the 2nd arm 15b mutually axle be connected, and on the side-prominent supporting pin 15c of prism unit 30.Abutting part 16a have with prism unit 30 be positioned the 1st position P1 the 1st abutting part 16c, prism unit is positioned the 2nd abutting part 16d of the 2nd position P2 and the inclined-plane 16e that can come mobile supporting pin 15c with the state between them of being connected to.In this case, because bindiny mechanism 15 possesses pressing component 15d, so supporting pin 15c is pushed to abutting part 16a usually.
Switching part 16 is configured to along the direction parallel with the sensitive surface of imaging apparatus 12, can move between the 1st desired location S1 of the Y direction of arranging the 1st prism unit 41 and the 2nd prism unit 42 and the 2nd desired location S2.Manual operational unit 95 interlocks on switching part 16 and the casing 2 that is arranged on digital camera shown in Figure 11.
As shown in figure 12, micro-adjusting mechanism 70 is arranged between fixed part 13 and the prism unit 30.Micro-adjusting mechanism 70 is along with the direction of the sensitive surface quadrature of imaging apparatus 12 the 1st position P1 of prism unit 30 being carried out inching.Micro-adjusting mechanism 70 is provided with the 2nd fine setting abutting part 71 accordingly with each the 1st fine setting abutting part 31a on the angle that is arranged on holding plate 31.
The 2nd fine setting abutting part 71 is connected on the 1st fine setting abutting part 31a prism unit 30 location are remained on the state of the 1st position P1.The 2nd fine setting abutting part 71 with respect to the directions X of the sensitive surface quadrature of imaging apparatus 12, tilt a little in the 1st prism 41 sides.Therefore, if on the Y direction mobile micro-adjusting mechanism 70, then prism unit 30 and housing parts 14 are connected mechanism 15 together and support, and to the directions X displacement.In the 1st prism 41 sides, the end 70a of micro-adjusting mechanism 70 and the guide portion 13b of fixed part 13 are chimeric.Micro-adjusting mechanism 70 utilizes bonding agent etc. directly to be fixed on the fixed part 13 after the 1st position P1 with prism unit 30 adjusts to suitable position.
Then, the action of the camera head 10 when prism unit 30 being switched to the 1st position P1 and the 2nd position P2 describes.Figure 17 and Figure 18 represent the state that the 1st position P1 by 70 pairs of prism unit 30 of micro-adjusting mechanism carries out inching.Like this, as shown in figure 18, if utilize 70 couples the 1st position P1 of micro-adjusting mechanism to carry out inching, then by butt the 1st fine setting abutting part 31a and the 2nd fine setting abutting part 71, become supporting pin 15c shown in Figure 17 and the 1st abutting part 16c away from state.
If mobile switching part 16 on the Y direction, so that prism unit 30 is switched to the 2nd position P2, then the supporting pin 15c of bindiny mechanism 15 contacts with the inclined-plane 16e of abutting part 16a in the mobile way of switching part 16, and along with the directions X of the sensitive surface quadrature of imaging apparatus 12, to direction displacement, till the 2nd abutting part 16d away from sensitive surface.By mobile supporting pin 15c on directions X, change the angle of the 1st arm 15a and the 2nd arm 15b.Its result, as Figure 19 and shown in Figure 20, prism unit 30 moves on away from the direction of the sensitive surface of imaging apparatus 12 with housing parts 14, and is located in the 2nd position P2.
Like this, for example, switch to Figure 17 and the 1st desired location S1 and Figure 19 and the 2nd desired location S2 shown in Figure 20 shown in Figure 180 by operation manual operation switching part 95.At the 1st desired location S1, as shown in figure 18, switching part 16 remains on the 1st position P1 that has carried out inching with prism unit 30 location.At the 2nd desired location S2, as shown in figure 20, switching part 16 remains on the 2nd position P2 with the prism unit location.
In addition, in the present embodiment, switching part 16 is configured between fixed part 13 and the bindiny mechanism 15, but also can be configured in the outside of bindiny mechanism 15, run through the 1st arm 15a and the 2nd arm 15b, and support the supporting pin 15c that gives prominence to away from the direction of prism unit 30 with abutting part 16a.
With reference to Figure 21～Figure 26 the camera head 10a of the 2nd embodiment of the present invention is described.In addition, for giving identical symbol, and omit its explanation with the structure of the structure identical functions of the camera head 10 of the 1st embodiment.
Camera head 10a shown in Figure 21 compares with the camera head 10 of the 1st embodiment, has following difference: possess the carriage 14k of housing parts 14 between fixed part 13 and micro-adjusting mechanism 70, micro-adjusting mechanism 70 is fixed on this carriage 14k.Therefore, micro-adjusting mechanism 70 is to be connected to the 2nd fine setting abutting part 71 state on the fine setting of the 1st on the holding plate 31 that the is arranged at prism unit 30 abutting part 31a, utilize bindiny mechanism 15, move along direction integratedly with the sensitive surface quadrature of imaging apparatus 12 with prism unit 30.
In addition, prism unit 30 is by micro-adjusting mechanism 70, and the directions X with sensitive surface quadrature imaging apparatus 12 in housing parts 14 moves.Therefore, housing parts 14 is provided with the engaging slotted hole 14m that has major diameter at directions X in the part corresponding with bayonet lock 32 on the holding plate 31 that is arranged on prism unit 30.
The camera head 10a of said structure moves with prism unit 30 housing parts 14, micro-adjusting mechanism 70 as one.Therefore, at the 1st position P1, as shown in figure 23, supporting pin 15c contacts with the 1st abutting part 16c of the switching part 16 that is positioned at the 1st desired location S1, and as shown in figure 24, the 1st of holding plate 31 the fine setting abutting part 31a contacts with the 2nd fine setting abutting part 71 of micro-adjusting mechanism 70.In addition, at the 2nd position P2, as shown in figure 25, supporting pin 15c contacts with the 2nd abutting part 16d of the switching part 16 that is positioned at the 2nd desired location S2, and as shown in figure 26, the 1st of holding plate 31 the fine setting abutting part 31a contacts with the 2nd fine setting abutting part 71 of micro-adjusting mechanism 70.
That is, this camera head 10a uses micro-adjusting mechanism 70 to carry out inching at least one position of the 1st position P1 or the 2nd position P2.In this case, relatively the 1st position P1 and the 2nd position P2 both sides' condition can stress any one party adjustment, also both sides' condition enactment can be become best equilibrium state.
With reference to Figure 27 and Figure 28, the adjusting mechanism 86 of adjustment unit as the camera head that is applicable to the present invention's the 3rd embodiment is described.The adjusting mechanism 86 of Figure 27 has these two function of the switching part 16 of above-mentioned embodiment and micro-adjusting mechanism 70 concurrently.Adjusting mechanism 86 possesses adjustment component 86a, the 1st fine setting cam 86b and the 2nd fine setting cam 86c.
The 1st fine setting cam 86b is when adjustment component 86a is positioned at the 1st desired location S1 and the end 86e butt of the adjustment component 86a of the 2nd abutting part 16d side, is the cam of middle mind-set Y direction off-centre with the 1st camshaft M1 along the directions X configuration.And, the 1st desired location S1 of the adjustment component 86a that prism unit 30 is set in the 1st position P1 is carried out inching to the Y direction.Thus, the 1st position P1 setting of prism unit 30 is gone up in position.
The 2nd fine setting cam 86c is when adjustment component 86a is positioned at the 2nd desired location S2 and the end 86f butt of the adjustment component 86a of the 1st abutting part 16c side, is the cam of middle mind-set Y direction off-centre with the 2nd camshaft M2 along the directions X configuration.And, the 2nd desired location S2 of the adjustment component 86a that prism unit 30 is set in the 2nd position P2 is carried out inching to the Y direction.Thus, the 2nd position P2 setting of prism unit 30 is gone up in position.
As mentioned above, adjustment component 86a uses and adjusts inclined-plane 86d, and prism unit 30 is positioned the 1st position P1 and the 2nd position P2, simultaneously, can carry out inching to the 1st position P1 and the 2nd position P2 respectively.
As an example of image sensing equipment of the present invention, Figure 29 shows camera head is installed in example in the mobile phone 160 of subsidiary camera.Be installed in the mobile phone 160 of this subsidiary camera by the camera head that the respective embodiments described above are illustrated (for example camera head 10), can realize miniaturization, slimming and high-qualityization of image of the mobile phone 160 of subsidiary camera.
Figure 30～Figure 32 represents to be applicable to prism unit 30a, the 30b of camera head of the present invention, the mutually different example of 30c respectively.No matter whichever will do among prism unit 30a, 30b, the 30c switches the 1st position P1 and the 2nd position P2 by the switching mechanism identical with the camera head of above-mentioned embodiment.
The 1st prism 41a of prism unit 30a shown in Figure 30 and each face 201～206 of the 2nd prism 42a all are made of free form surface.Reflect by the 1st 201 from the light of the 1st 201 incidents,, follow, after reflecting by the 3rd 203, by the 4th 204 refraction by the 2nd 202 total reflections.Then by after the 5th 205 total reflections, by the 6th 206 total reflections, by the 5th 205 refraction back imaging on imaging surface 45.
The decentered prism 210 of prism unit 30b shown in Figure 31 has the 1st 211, the 2nd 212, the 3rd 213 that are made of free form surface.Light by 214 incidents of diaphragm parts reflects by the 1st 211, and incide on the decentered prism 210, carry out internal reflection by the 2nd 212, incide again on the 1st 211, carry out total reflection specifically, and carry out internal reflection by the 3rd 213, carry out total reflection by the 1st 211 for the third time, carry out internal reflection by the 3rd 213 again, the 4th time by the 1st 211 refraction, and imaging on imaging surface 45.
The 1st prism 221 of prism unit 30c shown in Figure 32 and each face 231～238 of the 2nd prism 222 all are made of free form surface.Reflect by the 1st 231 from the light of the 1st 231 incidents, and by the 2nd 232 total reflections, and after the 3rd 233 total reflections, by the 4th 234 and the 5th 235 refractions, then, after the 6th 236 and the 7th 237 total reflections, by the 8th 238 refraction, and imaging on imaging surface 45.
In addition, when enforcement was of the present invention, the textural element of prism optical system, guide, imaging apparatus, switching mechanism etc. and invention was certainly implemented by various changes in the scope that does not break away from technical conceive of the present invention.
In addition, in the above-described embodiment, though utilize manual operation switching part 95 that the switching part 16 of switching mechanism is switched to the 1st desired location S1 and the 2nd desired location S2, but replace using manual operation switching part 95, can carry out electronic switching by using actuators such as motor or o.
Claims (12)
1, a kind of camera head is used for from the object incident beam, obtains the electric signal corresponding with the object picture, it is characterized in that having:
Prism unit, it is used for the light beam of incident from object, and on imaging surface, form the object picture, has the reflecting surface of two or more free form surface shapes at least, incident is from the incident light axis of the light beam of object and roughly parallel to each other to the ejaculation optical axis of imaging surface outgoing beam from this prism unit, and the interval with regulation;
Imaging apparatus, it is configured on the above-mentioned imaging surface, and the formed object of above-mentioned prism unit is looked like to be converted to electric signal;
Fixed part, it is used for fixing above-mentioned imaging apparatus;
Bindiny mechanism, it can connect said fixing parts and above-mentioned prism unit with moving, so that when keeping the posture of above-mentioned prism unit, moves above-mentioned prism unit along parallel with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus;
Switching part, its along with the direction of above-mentioned sensitive surface quadrature, selectively above-mentioned prism unit location is remained on above-mentioned the 1st position and than the 2nd farther position of the above-mentioned sensitive surface of distance, above-mentioned the 1st position.
2, camera head according to claim 1 is characterized in that,
Above-mentioned the 1st position be the corresponding object that will take the position from the position of stipulating to the situation the infinite distance roughly, the standard camera site of taking, above-mentioned the 2nd position is the position situation nearer than the position of afore mentioned rules of the corresponding object that will take, the microshot position of taking.
3, camera head according to claim 1 is characterized in that,
Above-mentioned prism unit has two prisms and is configured in diaphragm parts between them, and each prism has the reflecting surface of a free form surface shape, the light-emitting face that has the light entrance face of focal power and have focal power respectively at least.
4, camera head according to claim 1 is characterized in that,
Has the manual operation switching part, itself and above-mentioned switching part interlock switch to above-mentioned switching part above-mentioned prism unit location are remained on the above-mentioned the 1st locational the 1st desired location or above-mentioned prism unit location is remained on the above-mentioned the 2nd locational the 2nd desired location.
5, camera head according to claim 1 is characterized in that,
The said fixing parts have the 1st and connect support sector;
Above-mentioned prism unit has the 2nd and connects support sector;
Above-mentioned bindiny mechanism has in the way of separately the end and the other end the 1st arm and the 2nd arm by the mutual pivotal support of supporting pin;
One end of above-mentioned the 1st arm is connected the support portion pivotal support by the above-mentioned the 1st, and the other end is connected the support portion by the above-mentioned the 2nd and can be slidably supported;
One end of above-mentioned the 2nd arm is connected the support portion pivotal support by the above-mentioned the 2nd, and the other end is connected the support portion by the above-mentioned the 1st and can be slidably supported.
6, camera head according to claim 5 is characterized in that,
Above-mentioned switching part can remain on above-mentioned prism unit location the above-mentioned the 1st locational the 1st desired location and above-mentioned prism unit location remained between the 2nd locational the 2nd desired location, move along the direction parallel with the sensitive surface of above-mentioned imaging apparatus
And have an abutting part, its by with a part of butt of above-mentioned supporting pin or above-mentioned prism unit, come selectively location positioning with above-mentioned prism unit in above-mentioned the 1st position or above-mentioned the 2nd position.
7, camera head according to claim 6 is characterized in that,
Above-mentioned abutting part has respectively above-mentioned prism unit location is remained on the above-mentioned the 1st locational the 1st abutting part and above-mentioned prism unit location is remained on the 2nd locational the 2nd abutting part.
8, camera head according to claim 7 is characterized in that,
Has micro-adjusting mechanism, it is with above-mentioned the 1st abutting part or above-mentioned the 2nd abutting part is connected on the above-mentioned supporting pin or under the state on the part of above-mentioned prism unit, along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus inching being carried out in the position of above-mentioned prism unit.
9, camera head according to claim 1 or 5 is characterized in that,
Have adjustment unit, it is along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus inching being carried out at least one position in above-mentioned the 1st position and above-mentioned the 2nd position.
10, camera head according to claim 5 is characterized in that,
Above-mentioned switching part can move along the direction parallel with the sensitive surface of above-mentioned imaging apparatus above-mentioned prism unit location being remained on the 1st locational the 1st desired location and above-mentioned prism unit location being remained between the 2nd locational the 2nd desired location,
Above-mentioned switching part has the 1st abutting part of a part of pushing above-mentioned supporting pin or above-mentioned prism unit when being positioned at above-mentioned the 1st desired location and push the 2nd abutting part of the part of above-mentioned supporting pin or above-mentioned prism unit when being positioned at above-mentioned the 2nd desired location.
11, camera head according to claim 7 is characterized in that,
Have micro-adjusting mechanism, it carries out inching by the position to above-mentioned the 1st abutting part, carry out along with the inching to the 1st position of the above-mentioned prism unit sensitive surface quadrature of above-mentioned imaging apparatus, direction.
12, a kind of camera head is used for from the object incident beam, obtains the electric signal corresponding with the object picture, it is characterized in that having:
Prism unit, it is used for the light beam of incident from object, on imaging surface, form the object picture, has the reflecting surface of two or more free form surface shapes at least, incident from the incident light axis of the light beam of object with roughly parallel to each other to the ejaculation optical axis of imaging surface outgoing beam from this prism unit, and interval with regulation;
Imaging apparatus, it is configured on the above-mentioned imaging surface, and the formed object of above-mentioned prism unit is looked like to be converted to electric signal;
Fixed part, it is used for fixing above-mentioned imaging apparatus;
Support component, it is used to support above-mentioned prism unit;
Bindiny mechanism, it can connect said fixing parts and above-mentioned support component with moving, so that when keeping the posture of above-mentioned prism unit, along with the parallel above-mentioned prism unit that moves by above-mentioned support component supported of direction of the sensitive surface quadrature of above-mentioned imaging apparatus;
Switching part, its along with the direction of above-mentioned sensitive surface quadrature, will remain on above-mentioned the 1st position selectively by the prism unit location that above-mentioned support component supported and than farther above-mentioned the 2nd position of the above-mentioned sensitive surface of distance, above-mentioned the 1st position;
Micro-adjusting mechanism, its along with the direction of the sensitive surface quadrature of above-mentioned imaging apparatus, the relative position relation of above-mentioned support component and above-mentioned prism unit is carried out inching.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003373597A JP2005134834A (en) | 2003-10-31 | 2003-10-31 | Imaging unit and electronic imaging equipment |
| JP2003373597 | 2003-10-31 |
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| Publication Number | Publication Date |
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| CN1611982A true CN1611982A (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410085899 Pending CN1611982A (en) | 2003-10-31 | 2004-10-29 | Image sensing device and electronic image sensing apparatus |
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| JP (1) | JP2005134834A (en) |
| CN (1) | CN1611982A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341737A (en) * | 2009-03-10 | 2012-02-01 | 柯尼卡美能达精密光学株式会社 | Image-capturing optical system, image-capturing optical device, and digital equipment |
| CN114585958A (en) * | 2019-10-19 | 2022-06-03 | 美国赛库莱特生物有限公司 | Virtual reference |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7791822B2 (en) | 2006-08-21 | 2010-09-07 | Konica Minolta Opto, Inc. | Focusing method and image-taking apparatus |
-
2003
- 2003-10-31 JP JP2003373597A patent/JP2005134834A/en not_active Withdrawn
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2004
- 2004-10-29 CN CN 200410085899 patent/CN1611982A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341737A (en) * | 2009-03-10 | 2012-02-01 | 柯尼卡美能达精密光学株式会社 | Image-capturing optical system, image-capturing optical device, and digital equipment |
| CN102341737B (en) * | 2009-03-10 | 2014-04-23 | 柯尼卡美能达精密光学株式会社 | Image-capturing optical system, image-capturing optical device, and digital equipment |
| CN114585958A (en) * | 2019-10-19 | 2022-06-03 | 美国赛库莱特生物有限公司 | Virtual reference |
| CN114585958B (en) * | 2019-10-19 | 2024-05-28 | 美国赛库莱特生物有限公司 | Microscope and method for imaging fluorescent markers in a fluid channel |
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| JP2005134834A (en) | 2005-05-26 |
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