CN1442746A - Distance measuring apparatus, adjusting device and adjusting method used for said distance measuring apparatus - Google Patents
Distance measuring apparatus, adjusting device and adjusting method used for said distance measuring apparatus Download PDFInfo
- Publication number
- CN1442746A CN1442746A CN 03104922 CN03104922A CN1442746A CN 1442746 A CN1442746 A CN 1442746A CN 03104922 CN03104922 CN 03104922 CN 03104922 A CN03104922 A CN 03104922A CN 1442746 A CN1442746 A CN 1442746A
- Authority
- CN
- China
- Prior art keywords
- distance measuring
- measuring equipment
- picture
- adjusted value
- ranging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Measurement Of Optical Distance (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
The present invention provided a distance measuring apparatus, adjusting device and adjusting method used for said distance measuring apparatus. In one mode, the adjustment device for a range finder electrically corrects error between logical values and actual measured data, which is caused by variance of a distance measuring optical system of the range finder or assembling. During adjustment, the adjustment device has a plurality adjustment charts installed at different distances to the range finder and obtains an adjustment value for correcting error of tilt and an adjustment value for correcting offset on the basis of distance measurement data obtained by measuring distances to a plurality of adjustment charts with respect to a distance measurement area in the center part and uses an adjustment value for correcting tilt error of the distance measurement area in the center part as an adjustment value for correcting error of tilt and obtains an adjustment value for correcting offset on the basis of distance measurement data obtained by measuring the distance to a shorter-distance chart out of two charts used to obtain the adjustment value for correcting tilt error in the distance measurement area in the center part with respect to a distance measurement area in the peripheral part.
Description
Invention field
The present invention relates to distance measuring equipment, be used for the adjusting gear and the method for adjustment of this distance measuring equipment, relate to the adjustment technology of the so-called multipoint ranging apparatus that can find range to a plurality of zones in the camera shooting picture for example.
Background technology
Up to now, in order electrically to proofread and correct and theoretical value that causes and the error between the actual ranging data by the deviation of the optical system of distance measuring equipment or assembling, opening clear 63-198818 communique as the spy announces, can be according to the range data that detects apart from the place two different subjects, the method for adjusted values such as coefficient of obtaining correction error is known for everyone.
But, under the situation of the distance measuring equipment that can find range to a plurality of zones in the photographic picture, if open the same quadrat method that clear 63-198818 communique is announced according to special as described, if in order electrically to proofread and correct the theoretical value that causes by the deviation of distance measuring equipment optical system or assembling and the error between the actual ranging data, and adjust, then the picture that is arranged at the remote side in the picture at different distance place for adjustment just must maximize.For this reason, take very large space, exist the problem of the space availability ratio variation of production line in factory's domestic demand.
In addition, if in order to prevent the maximization of picture, and in fact only measure the adjusted value of the central part among a plurality of ranging regions, and utilize this adjusted value to come whole ranging region is proofreaied and correct, then, may be created in the problem of the distance accuracy variation of peripheral position ranging region owing to reasons such as the aberration that is subjected to the light microscopic head of distance measuring equipment and light quantity decay on every side.
Summary of the invention
The present invention In view of the foregoing proposes, purpose is to provide a kind of adjusting gear, it neither makes adjustment maximize with picture, does not also make the distance accuracy variation of the ranging region of periphery, and can adjust the distance measuring equipment that the scope of the broadness in the photographic picture is found range.
For addressing the above problem, one of content of the present invention is a kind of adjusting gear, be used for theoretical value that the deviation owing to the optical system of distance measuring equipment or assembling is caused and the error between the actual ranging data and carry out electric correction, wherein this distance measuring equipment can be found range to a plurality of zones in the photographic picture, this adjusting gear is characterised in that
Described adjusting gear has a plurality of adjustment pictures, and when adjusting, they are set at the position that has different distance with described distance measuring equipment,
For the ranging region of the central portion of described photographic picture, according to from the ranging data of described distance measuring equipment when the distance of described a plurality of adjustment pictures is found range, obtain gradient error correction adjusted value and offset correction adjusted value,
Ranging region for the periphery of described photographic picture, the gradient error correction adjusted value of ranging region that uses described central portion is as gradient error correction adjusted value, ranging data when closely the distance of the picture of side is found range according to two pictures to the gradient error correction adjusted value from described distance measuring equipment to the ranging region that is used for obtaining described central portion is obtained the offset correction adjusted value.
In addition, another content of invention is a kind of adjusting gear of distance measuring equipment of camera, it is characterized in that,
Have: the 1st and the 2nd picture, they are configured in the different distance place, and size is roughly the same; The 1st pick-up unit, it is according to the range finding result of the described the 1st and the 2nd picture, detects the droop error of distance measuring equipment of described camera and the side-play amount of range finding characteristic; The 2nd pick-up unit, it is according to the range finding result of described the 1st picture, detects the side-play amount of range finding characteristic of the distance measuring equipment of described camera;
For the central portion of photographic picture, use droop error that is detected by described the 1st pick-up unit and the side-play amount of finding range characteristic, determine the adjusted value of the range error of described camera,
For the periphery of photographic picture, use the side-play amount of the range finding characteristic that is detected by described the 2nd pick-up unit and the droop error that is detected by described the 1st pick-up unit, determine the adjusted value of the range error of described camera.
In addition, the another content of invention is a kind of method of adjustment of distance measuring equipment of camera, it is characterized in that having following steps:
The 1st step, according to configurable range finding result picture, that be disposed at the picture of the 1st distance and the 2nd distance in the different distance place, detect described camera distance measuring equipment droop error and the range finding characteristic side-play amount;
The 2nd step only according to the range finding result who is disposed at the picture of described the 1st distance, detects the side-play amount of range finding characteristic of the distance measuring equipment of described camera;
The 3rd step for the central portion of photographic picture, is utilized droop error that is detected by described the 1st step and the side-play amount of finding range characteristic, determines the adjusted value of the range error of described camera;
The 4th step for the periphery of photographic picture, is utilized the side-play amount of the range finding characteristic that is detected by described the 2nd step and the droop error that is detected by described the 1st step, determines the adjusted value of the range error of described camera.
In addition, the another content of invention is a kind of distance measuring equipment, it can be found range to a plurality of zones in the photographic picture, and has: adjust circuit, be used for the theoretical value that caused by range-finding optical system or assembling deviation and the error between the actual ranging data are carried out electric correction; And storer, being used for storing the adjusted value that is used to proofread and correct, this distance measuring equipment is characterised in that,
The adjusted value that is stored in the described storer is to calculate according to the range finding result from described distance measuring equipment to the adjustment picture that is arranged at the different a plurality of positions of described distance measuring equipment distance,
For the ranging region of the central portion of described photographic picture, be according to from the ranging data of described distance measuring equipment when the distance of described a plurality of adjustment pictures is found range, gradient error correction adjusted value that calculates and offset correction adjusted value,
Ranging region for the periphery of described photographic picture, gradient error correction adjusted value is the gradient error correction adjusted value of the ranging region of described central portion, and the offset correction adjusted value is that the ranging data when closely the distance of the picture of position is found range according to the picture to two places of the gradient error correction adjusted value from described distance measuring equipment to the ranging region that is used for obtaining described central portion is obtained.
In addition, the another content of invention is a kind of adjusting gear of distance measuring equipment, this distance measuring equipment has the storer of storage adjusted value and utilizes described adjusted value the error between measured value and the theoretical value to be carried out the correcting circuit of electric correction, and can find range to a plurality of zones in the zone, this adjusting gear is used to determine described corrected value, it is characterized in that having:
Adjust picture, it is arranged at the position of leaving described distance measuring equipment;
The 1st computing circuit for the ranging region of the central portion in described zone, according to a plurality of ranging datas of the described adjustment picture that is arranged on 2 interval locations, is obtained gradient error correction adjusted value and offset correction adjusted value;
The 2nd computing circuit for the ranging region of the periphery in described zone, is obtained from the gradient error correction adjusted value of described the 1st computing circuit and based on the offset correction adjusted value of the single ranging data from described distance measuring equipment to described adjustment picture;
Control circuit, it will be stored in the described storer by the adjusted value that the described the 1st and the 2nd computing circuit is calculated.
Description of drawings
Fig. 1 is the structural representation block scheme that is used for according to the adjusting gear of the distance measuring equipment of the 1st embodiment of the present invention.
Fig. 2 is a structural representation of using the active formula distance measuring equipment of the 1st embodiment of the present invention.
Fig. 3 is a structural representation of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
Fig. 4 is when adjusting passive type distance measuring equipment shown in Figure 3, is arranged on an exemplary plot of the pattern of the adjustment usefulness picture in the adjusting gear.
Fig. 5 (a) and (b) are synoptic diagram that are used for ranging data is converted to the near linear of 1/L data of carrying out at the adjusting gear of the distance measuring equipment that is used for the 1st embodiment of the present invention.
Fig. 6 is the schematic flow sheet that is used for according to the set-up procedure of the adjusting gear of the distance measuring equipment of the 1st embodiment of the present invention.
Fig. 7 is the schematic flow sheet of range finding step of using the active formula distance measuring equipment of the 1st embodiment of the present invention.
Fig. 8 is the schematic flow sheet of range finding step of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
Fig. 9 is the structural representation block scheme that is used for according to the adjusting gear of the distance measuring equipment of the 2nd embodiment of the present invention.
Figure 10 (a) and (b) are synoptic diagram that ranging data are converted to the near linear of 1/L data of carrying out according to the adjusting gear of the distance measuring equipment of the 2nd embodiment of the present invention being used for.
Figure 11 is the structural representation block scheme that is used for according to the adjusting gear of the distance measuring equipment of the 3rd embodiment of the present invention.
Figure 12 (a) and (b) are synoptic diagram that ranging data are converted to the near linear of 1/L data of carrying out according to the adjusting gear of the distance measuring equipment of the 3rd embodiment of the present invention being used for.
Figure 13 is the explanation synoptic diagram of range of triangle principle of using the active formula distance measuring equipment of the 1st embodiment of the present invention.
Figure 14 is the explanation synoptic diagram of range of triangle principle of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
Embodiment
With reference to the accompanying drawings embodiments of the present invention are described.
(the 1st embodiment)
Fig. 1 is the block diagram of the used adjusting gear of the distance measuring equipment of expression the 1st embodiment of the present invention.
With the adjusting gear adjustment of present embodiment be the camera that multipoint ranging apparatus is installed, this multipoint ranging apparatus can amount to 3 zones to the left side of the central portion in the photographic picture and this central portion and right side and find range.
In Fig. 1, reference symbol 101 is camera bodies that the distance measuring equipment of adjusting is installed.Reference symbol 102 is the closely side pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Reference symbol 103 is the remote side pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Closely side picture 102 and remote side picture 103 is big or small roughly the same.
Reference symbol 105 is control device, and it is according to coming self-adjusting with personal computer (PC) 106 signal, and the driving up and down of side picture 102 closely etc. is controlled.Reference symbol 106 is to adjust with personal computer (PC), and it is controlled the camera body of adjusting 101, or carries out the computing etc. of adjusted value.Reference symbol 107 is the power supplys that are used to drive camera body 101.
Reference symbol 108a is the light that arrives above-mentioned picture 102,103 from camera body 101, and it is used for being found range in the central portion zone of photographic picture.As shown in the figure, this light 108a both can arrive closely side picture 102, also can arrive remote side picture 103.
Reference symbol 108b is the light that arrives above-mentioned picture 102 from camera body 101, and it is used for being found range in the zone in above-mentioned central portion left side.Though this light 108b can arrive closely side picture 102, do not arrive remote side picture 103.
Reference symbol 108c is the light that arrives above-mentioned picture 102 from camera body 101, and it is used for being found range in the zone on above-mentioned central portion right side.This light 108c also can arrive closely side picture 102, but does not arrive remote side picture 103.
Reference symbol L1 is from the distance measuring equipment of camera body 101 to the distance of side picture 102 closely.Reference symbol L2 is the distance from the distance measuring equipment of camera body 101 to remote side picture 103.
Fig. 5 (a) and (b) are synoptic diagram that ranging data are converted to the near linear of 1/L data of carrying out in the adjusting gear according to the distance measuring equipment of the 1st embodiment of the present invention.
Fig. 5 (a) is the synoptic diagram that expression is converted to the ranging data of central ranging region the near linear of 1/L data.
Among Fig. 5 (a), reference symbol AFDC1 is the ranging data of the central ranging region during to 102 range findings of side picture closely.Reference symbol AFDC2 is the ranging data of the central ranging region during to 103 range findings of remote side picture.Reference symbol AFKC is the gradient data of near linear, and it calculates according to ranging data AFDC1, the AFDC2 that distance L 1, L2 and central ranging region that should distance are set that adjust with picture.
Fig. 5 (b) is the synoptic diagram that is used for the ranging data of left and right sides ranging region is converted to the near linear of 1/L data.
Among Fig. 5 (b), reference symbol AFDL1 is the ranging data of the left ranging region during to 102 range findings of side picture closely.Reference symbol AFDR1 is the ranging data of the right ranging region during to 102 range findings of side picture closely.Reference symbol AFKC is the gradient data of near linear, and it calculates according to ranging data AFDC1, the AFDC2 that distance L 1, L2 and central ranging region that should distance are set that adjust with picture.
(main points of the 1st embodiment)
The adjusting gear that is used for the distance measuring equipment of the 1st embodiment of the present invention, be the adjusting gear that error is carried out electric adjustment, this error is caused by the deviation of the size of forming member that is installed in the distance measuring equipment in the camera body shown in Figure 1 101 or assembling.
Especially, this adjusting gear has utilized the proportionate relationship as shown in Figure 5 that exists between the inverse (1/L data) of ranging data in the range of triangle and subject distance, and the ranging data of using it for when being photographed by reality is obtained in the computing of subject distance, according to closely side picture shown in Figure 1 102 and remote side picture 103 distance L 1, L2 and ranging data AFDC1, AFDC2 be set, obtain the gradient data AFKC and the intercept (reference data) of the straight line of Fig. 5.
And, adjusting gear according to the 1st embodiment of the present invention, for example, to the time by can the adjusting of Fig. 2 described later or formation shown in Figure 3 to the distance measuring equipment of finding range in a plurality of zones in the camera shooting picture, for central ranging region, closely side picture 102 and remote side picture 103 to Fig. 1 are found range, and measure ranging data AFDC1, AFDC2.
And then, according to these ranging datas, press the gradient data AFKC of the range finding characteristic straight line of the distance measuring equipment shown in formula (1) calculating chart 5 (a), these gradient data AFKC as gradient error correction adjusted value, and is stored in either party of ranging data AFDC1, AFDC2 in the memory storage 115 (125) as adjusted value as reference data (offset correction adjusted value).
AFKC＝{(1/L1)-(1/L2)}/(AFDC1-AFDC2)?…(1)
In addition,, only the closely side picture 102 of Fig. 1 is found range, measure ranging data AFDL1, AFDR1 for left and right sides ranging region.And then, these ranging datas as reference data (offset correction adjusted value), are stored in the memory storage 115 (125) as adjusted value.In addition, as gradient data (gradient error correction adjusted value), the data AFKC of middle section is stored in the memory storage 115 (125) as adjusted value.
Utilize the adjusted value that is stored in as mentioned above in the memory storage 115 (125), when the CPU114 (124) with the distance measuring equipment of Fig. 2, Fig. 3 carries out actual range finding, for central ranging region, by formula (2) or formula (3), for left and right sides ranging region, calculate the 1/L data by formula (4) or formula (5).
1/L＝AFKC×(AFDC-AFDC1)+(1/L1) …(2)
1/L＝AFKC×(AFDC-AFDC2)+(1/L2) …(3)
1/L＝AFKC×(AFDL-AFDL1)+(1/L1) …(4)
1/L＝AFKC×(AFDR-AFDR1)+(1/L1) …(5)
The ranging data in the middle section when herein, AFDC, AFDL, AFDR are respectively actual range findings, zone, a left side, right zone.
That is, as (2) to (5) formula is pointed,, calculate the 1/L data according to the straight line shown in Fig. 5 (a) for central ranging region.In addition, for left and right sides ranging region, calculate the 1/L data according to the straight line shown in Fig. 5 (b).
In adjusting gear shown in Figure 1,, when active formula distance measuring equipment is as shown in Figure 2 adjusted, use the picture of the no textured patterns such as gray scale picture of standard reflectivity as closely side picture 102 and side picture 103 at a distance.So-called active formula distance measuring equipment is such distance measuring equipment: it, accepts to be found range according to the incoming position of the flashlight of exporting from this infrared rays receiver by the flashlight that above-mentioned subject reflected with infrared rays receiver to subject superframe signal light from grenade instrumentation.
In addition, when passive type distance measuring equipment shown in Figure 3 is adjusted,, use picture as shown in Figure 4 with high black white contrast pattern as closely side picture 102 and side picture 103 at a distance.So-called passive type distance measuring equipment is such distance measuring equipment: the phase differential according to the picture of the described subject by the suffered light of at least one pair of infrared rays receiver is found range.
Picture 102,103 big or small identical that is used for adjusting gear herein.Because its size is identical, can reduce the management workload or the manufacturing cost of adjusting gear.
Fig. 2 is a structural representation of using the active formula distance measuring equipment of the 1st embodiment of the present invention.
Among Fig. 2, reference symbol 111b is the projection camera lens, and it throws light-emitting component (IRED) flashlight that 112a, 112b, 112c sent to the subject (not shown).Reference symbol 111a is subjected to the light microscopic head, and it will be imaged on photo detector (PSD) 113a, 113b, the 113c by the flashlight of subject reflection.These projection camera lenses 111b is a range-finding optical system with being subjected to light microscopic head 111a.Herein, photo detector (PSD) 113a, 113b, 113c are according to the centre of gravity place output current by the flashlight luminous point (spot) that is subjected to light microscopic head 111a imaging.
Figure 13 is the synoptic diagram that is used to illustrate the range of triangle principle of the active formula distance measuring equipment of using the 1st embodiment of the present invention.
In Figure 13, reference symbol 1 is to send the IRED of the flashlight that projects subject.Reference symbol 2 is PSD, and it is according to the centre of gravity place output current by the flashlight luminous point that is subjected to the imaging of light microscopic head.Reference symbol 3 is the optical axises that are subjected to the light microscopic head.Reference symbol 4 is the principal points that are subjected to the light microscopic head.Reference symbol 5 is subjects.Reference symbol 6 is projection camera lenses, and it will project subject by the flashlight that IRED1 sends.Reference symbol 7 is to be subjected to the light microscopic head, and it will be imaged on PSD2L by the flashlight luminous point of subject reflection.
Reference symbol L is the subject distance.Reference symbol s is a base length.Reference symbol f is the focal length that is subjected to the light microscopic head, and reference symbol t is the distance from the optical axis that is subjected to the light microscopic head 3 on the PSD2 to the centre of gravity place of flashlight luminous point.Reference symbol t ∞ is the remote distance of holding the optical axis 3 that is subjected to the light microscopic head from PSD2.Reference symbol In is the electric current from the closely end output of PSD2.Reference symbol If is the electric current from the remote end output of PSD2.
That is as shown in figure 13, the flashlight that is sent by IRED1 is projected subject 5 by projection camera lens 6 by optically focused, and by the flashlight of subject reflection, by being subjected to light microscopic head 7, it is the position of t that the distance that is imaged on PSD2 is subjected to the distance of the optical axis 3 of light microscopic head.
As shown in Figure 13, on base length s, the focal distance f that is subjected to the light microscopic head, subject distance L, the PSD2 apart from the optical axis 3 that is subjected to the light microscopic head apart from t between, relational expression (6) is set up:
L/s＝f/t …(6)
In the formula (6), because s, f are given values, then can obtain the subject distance if obtain t, in general, because the overhang of camera shooting camera lens has the tendency that is directly proportional with the inverse of subject distance, for the computing that makes overhang is carried out easily, shown in (7) formula, the inverse of distance L is calculated as the subject range data.
1/L＝t/(s×f) …(7)
Above-mentioned t value can obtain two output current In, the If of PSD2 by the mimic channel computing, in specific words, as ranging data, can obtain In/ (In+If) according to known log-compressed technology etc.
Because the ratio according to the length of PSD2 and above-mentioned output current can obtain t+t ∞, deduct the value of t ∞ from this value, can calculate the value of t.
But, base length s, be subjected to the focal distance f of light microscopic head, hold the optical axis 3 that is subjected to the light microscopic head at a distance from PSD2 have deviation apart from meetings such as t ∞ owing to the machining status or the assembly precision of member, therefore by aforesaid adjusting gear, mensuration is corresponding to the ranging data of the t of the subject distance more than 2 o'clock, obtain near linear, in advance this straight line is stored into respectively in the memory storages such as nonvolatile memory 115 such as EEPROM of each camera, when reality is found range, utilize this straight line to calculate 1/L.
Fig. 3 is a structural representation of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
Among Fig. 3, reference symbol 121a, 121b be as range-finding optical system be subjected to the light microscopic head, it is imaged on shot object image on line sensor (line sensor) 122a, the 122b.Reference symbol 122a, 122b are line sensors, and it carries out opto-electronic conversion by the shot object image that is subjected to light microscopic head 121a, 121b imaging according to light intensity, is converted to electric signal.Reference symbol 123 is integral control circuits, the integral action of its operation circuit sensor 122a, 122b.Reference symbol 124 is the CPU that produce the various control signals and the computing of finding range etc.This CPU forms and adjusts circuit, is used for electrically proofreading and correct the theoretical value that caused by the deviation of range-finding optical system or assembling and the error between the actual ranging data.Reference symbol 125 is memory storages, is used to store be used for adjusted value (gradient error correction adjusted value or offset correction adjusted value) that ranging data is converted to the 1/L data etc., and it is made of nonvolatile memories such as EEPROM.Reference symbol 126 is readout devices, and shot object image resulting analog electrical signal after opto-electronic conversion that it is used for line sensor 122a, 122b output carries out A/D and changes and it is read.
Fig. 4 is when passive type distance measuring equipment shown in Figure 3 is adjusted, and is arranged on adjustment in the adjusting gear with an exemplary plot of the pattern of picture.
In Fig. 4, reference symbol 131 is main bodys of adjusting with picture.Reference symbol 132 is adjustment patterns of the passive type distance measuring equipment that is made of white black streaking.
Figure 14 is the explanation synoptic diagram of range of triangle principle of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
In Figure 14, reference symbol 11 is subjects.Reference symbol 12a, 12b are subjected to the light microscopic head, and it is imaged on shot object image on line sensor 13a, the 13b.Reference symbol 13a, 13b are line sensors, and it is used for and will be subjected to the shot object image of light microscopic head 12a, 12b imaging, carries out opto-electronic conversion and is converted to electric signal according to its light intensity.Reference symbol 14a, 14b are the sensing datas from line sensor 13a, 13b output.Reference symbol L is the subject distance.Reference symbol f is the focal length that is subjected to the light microscopic head.Reference symbol B is a base length.Reference symbol X is the relative displacement (phase differential) of shot object image.
That is, as shown in figure 14, the range of triangle of passive type is by being subjected to light microscopic head 12a, 12b, the imaging picture corresponding on line sensor 13a, 13b with the Luminance Distribution of subject 11, sensing data 14a, the 14b of gained after the opto-electronic conversion carried out this shot object image in utilization, according to known related operation, interpolation arithmetic etc., the relative displacement X that obtains shot object image is as ranging data.
As shown in Figure 14, between the relative displacement of base length B, the focal distance f that is subjected to the light microscopic head, subject distance L, shot object image, relational expression (8) is set up.
L/B＝f/X …(8)
In the formula (8), because B, f are given values, then can obtain the subject distance L if obtain X, in general, owing to there is the tendency of proportional relationship between the overhang of the phtographic lens of camera and the inverse of subject distance, for the computing that makes overhang is carried out easily, shown in (9) formula, the inverse of distance L is calculated as the subject range data.
1/L＝X/(B×f) …(9)
But base length B, be subjected to the focal distance f of light microscopic head to have deviation owing to the machining status or the assembly precision of member, therefore should utilize aforesaid adjusting gear, mensuration is obtained near linear corresponding to the ranging data of the X of the subject distance more than 2 o'clock, in advance this straight line is stored into respectively in the memory storages such as nonvolatile memory 125 such as EEPROM of each camera, when reality is found range, utilize this straight line to calculate 1/L.
Secondly, to the set-up procedure of the adjusting gear that is used for distance measuring equipment shown in Figure 1, be illustrated with reference to the process flow diagram of figure 6.In addition, to the range finding step of active formula distance measuring equipment shown in Figure 2, be illustrated with reference to the process flow diagram of figure 7.In addition, to the range finding step of passive type distance measuring equipment, be illustrated with reference to the process flow diagram of figure 8.
Fig. 6 is the schematic flow sheet of set-up procedure of adjusting gear that is used for the distance measuring equipment of the 1st embodiment of the present invention.
At first,,, be equipped with the camera body 101 of the distance measuring equipment of adjusting at the adjusting gear that is used for distance measuring equipment shown in Figure 1 at step S101, and opening power.
Secondly,,, make the distance measuring equipment of camera body 101 be in driving condition, thereby side picture 102 is closely found range, measure ranging data AFDC1, AFDL1, AFDR1 by PC106 at step S102.
Then, at step S103, by control device 105, make closely that side picture 102 is moved upward, so that can find range to remote side picture 103.
Secondly,,, carry out the range finding of remote side picture 103, measure ranging data AFDC2 with identical at step S102 at step S104.
Then, at step S105,, calculate gradient data AFKC shown in Fig. 5 (a), that be used for ranging data is converted to the near linear of 1/L data according to formula (1) by PC106.
And then at step S106, by PC106, the gradient data AFKC that calculates the ranging data AFDC1, the AFDL 1 that measure at step S102, AFPR 1 and at step S105 is as adjusted value, writes in Fig. 2 or the memory storage 115 (125) shown in Figure 3.
Then,, will be used for the adjusting gear of distance measuring equipment, unload, and finish to adjust from camera body 101 at step S107.
Fig. 7 is the schematic flow sheet of range finding step of using the active formula distance measuring equipment of the 1st embodiment of the present invention.
At first, at step S111,, store among the AFIC116 the constant light component that incides PSD113a shown in Figure 2,113b, 113c.
Secondly, at step S112, make IRED112a, 112b, 112c luminous, and accept flashlight by the subject reflection by PSD113a, 113b, 113c, deduct the constant light composition of being stored at step S111, only extract the flashlight composition,, obtain the incoming position of the flashlight on PSD113a, 113b, the 113c according to the ratio of 2 flashlight electric currents exporting from each PSD113a, 113b, 113c.
Then,,,, read, store among the RAM in the CPU114 from AFIC116 as ranging data the incoming position of the flashlight on the PSD113a that obtains at step S112,113b, the 113c at step S113.
Secondly, at step S114, whether judgement is finished for the mensuration of the ranging data of all ranging regions.
,, just enter step S115 herein,, just turn back to step S111 if do not finish if finish for the mensuration of the ranging data of all ranging regions.
Secondly, at step S115, in the ranging data of all ranging regions, select the ranging data of minimum distance.
Then,,, press the some of formula (2)～(5), selected ranging data is converted to the 1/L data according to the ranging region of selected ranging data at step S116.
Fig. 8 is the schematic flow sheet of range finding step of using the passive type distance measuring equipment of the 1st embodiment of the present invention.
At first, at step S121,, the sensor photosensitive degree of line sensor 122a, 122b shown in Figure 3 is set according to photometric data, pre-integration data etc.
Secondly, at step S122, the sensor photosensitive degree of setting with step S121 carries out integration.
At this moment, control by 123 pairs of integrations of integration control device.
Then, at step S123,, carry out A/D by readout device 126 and change and it is read the sensing data behind step S122 integration.
Secondly,,, carry out known related operation, to detect from the phase differential of the shot object image data of a pair of line sensor 122a, 122b output by CPU124 at step S124.
Secondly,, carry out interpolation arithmetic, to obtain fraction part at the resulting discrete phase differential (data offset) of step S124 by CPU124 at step S125.
And then at step S126, whether judgement is finished for the computing of the ranging data of all ranging regions.
,, just enter step S127 herein,, just turn back to step S124 if do not finish if finish for the computing of the ranging data of all ranging regions.
Secondly, at step S127, in the ranging data of all ranging regions, select the ranging data of minimum distance.
Secondly,,, press the some of formula (2)～(5), selected ranging data is converted to the 1/L data according to the ranging region of selected ranging data at step S128.
If according to the aforesaid adjusting gear that is used for the distance measuring equipment of the 1st embodiment, when the 1/L data of the ranging region that calculates periphery, utilize the data computation gradient data of middle section, utilize the measured value of the closely side picture of adjusting gear to calculate reference data.That is, be the gradient data of the ranging region that calculates periphery, do not use the mensuration of remote side picture 103.Therefore, there is no need to strengthen the width of remote side picture 103, thereby, needn't use large-scale adjusting gear, just can find range to a plurality of zones that have a wide reach in the photographic picture accurately.
(the 2nd embodiment)
Fig. 9 is the structural representation block scheme according to the adjusting gear of the 2nd embodiment of the present invention.
Among Fig. 9, reference symbol 201 is camera bodies that the distance measuring equipment of adjusting is installed.Reference symbol 202 is the closely side pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Reference symbol 203 is the remote side pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Reference symbol 205 is control device, and it is according to coming self-adjusting with personal computer (PC) 206 signal, and the driving up and down of side picture 202 closely etc. is controlled.Reference symbol 206 is to adjust with personal computer (PC), and it is controlled the camera body of adjusting 101, or carries out the computing etc. of adjusted value.Reference symbol 207 is the power supplys that are used to drive camera body 201.
In addition, reference symbol 208a is the light that arrives above-mentioned picture 202,203 from camera body 201, and it is used for being found range in the central portion zone of photographic picture.This ranging region is made as C.
Reference symbol 208b is the light that arrives above-mentioned picture 202,203 from camera body 201, and it is used for being found range in the zone in above-mentioned central portion left side.This ranging region is made as L.
Reference symbol 208c is the light that arrives above-mentioned picture 202,203 from camera body 201, and it is used for being found range in the zone on above-mentioned central portion right side.This ranging region is made as R.
Reference symbol 208d is the light that arrives above-mentioned picture 202 from camera body 201, and it is used to contrast the zone that above-mentioned zone L takes back more and finds range.Though this light 208d arrives closely side picture 202, do not arrive remote side picture 203.This ranging region is made as LL.
Reference symbol 208e is the light that arrives above-mentioned picture 202 from camera body 201, and it is used to contrast the zone that above-mentioned zone R takes over more and finds range.Though this light 208e arrives closely side picture 202, do not arrive remote side picture 203.This ranging region is made as RR.
In addition, reference symbol L1 is from the distance measuring equipment of camera body 201 to the distance of side picture 202 closely.Reference symbol L2 is the distance from the distance measuring equipment of camera body 201 to remote side picture 203.
Figure 10 (a) and (b) are near linear synoptic diagram that ranging data are converted to the 1/L data of carrying out on the adjusting gear of the distance measuring equipment that is used for the 2nd embodiment of the present invention.
Figure 10 (a) is the synoptic diagram that the ranging data of ranging region C, L and R is converted to the near linear of 1/L data.
Among Figure 10 (a), reference symbol AFDC1 is the ranging data of the ranging region C during to 202 range findings of side picture closely.Reference symbol AFDL1 is the ranging data of the ranging region L during to 202 range findings of side picture closely.Reference symbol AFDR1 is the ranging data of the ranging region R during to 202 range findings of side picture closely.Reference symbol AFDC2 is the ranging data of the ranging region C during to 203 range findings of remote side picture.Reference symbol AFDL2 is the ranging data of the ranging region L during to 203 range findings of remote side picture.Reference symbol AFDR2 is the ranging data of the ranging region R during to 203 range findings of remote side picture.
Reference symbol AFKC is the gradient data of near linear, it according to adjust with picture distance L 1, L2 be set, and calculate at ranging data AFDC1, the AFDC2 of the ranging region C of these distances.Reference symbol AFKL is the gradient data of near linear, it according to adjust with picture distance L 1, L2 be set, and calculate at ranging data AFDL1, the AFDL2 of the ranging region L of these distances.Reference symbol AFKR is the gradient data of near linear, it according to adjust with picture distance L 1, L2 be set, and calculate at ranging data AFDR1, the AFDR2 of the ranging region R of these distances.
Figure 10 (b) is the synoptic diagram that expression is converted to each ranging data of ranging region LL and ranging region RR the near linear of 1/L data.
Among Figure 10 (b), reference symbol AFDLL1 is the ranging data of the ranging region LL during to 202 range findings of side picture closely.Reference symbol AFDRR1 is the ranging data of the ranging region RR during to 202 range findings of side picture closely.Reference symbol AFKL is the gradient data of near linear, it is used for the ranging data of ranging region LL is converted to the 1/L data according to adjusting with distance L 1, L2 are set and calculate at ranging data AFDL1, the AFDL2 of the ranging region L of these distances of picture.Reference symbol AFKR is the gradient data of near linear, it is used for the ranging data of ranging region RR is converted to the 1/L data according to adjusting with distance L 1, L2 are set and calculate at ranging data AFDR1, the AFDR2 of the ranging region R of these distances of picture.
(main points of the 2nd embodiment)
In above-mentioned the 1st embodiment, the ranging region of distance measuring equipment is 3, it adopts the gradient data of the gradient data of central ranging region as left and right sides ranging region, and in the 2nd embodiment, as shown in Figure 9, the ranging region of distance measuring equipment is 5 when above, is used for calculating the gradient data of the outermost ranging region of ranging region of the ranging data adjusted value of remote side picture 203, as the gradient data of the ranging region of periphery.
For example, the situation that consideration is adjusted the distance measuring equipment with 5 ranging regions, these 5 ranging regions are LL, L, C, R, RR by photographic picture order from left to right, each ranging region for C, L, R, carry out closely side picture 202 and the range finding of side picture 203 at a distance, measure ranging data AFDC1, AFDL1, AFDR1, AFDC2, AFDL2, AFDR2 respectively.
Then, according to these ranging datas, according to formula (10)～(12), calculate gradient data AFKC, AFKL, the AFKR of the range finding characteristic straight line of the distance measuring equipment shown in Figure 10 (a), among these gradient data AFKC, AFKL, AFKR and ranging data AFDC1, AFDL1, AFDR1 or AFDC2, AFDL2, the AFDR2 either party as reference data, is stored in as in Fig. 2 or the memory storage 115 (125) shown in Figure 3 as adjusted value.
AFKC＝{(1/L1)-(1/L2)}/(AFDC1-AFDC2) …(10)
AFKL＝{(1/L1)-(1/L2)}/(AFDL1-AFDL2) …(11)
AFKR＝{(1/L1)-(1/L2)}/(AFDR1-AFDR2) …(12)
In addition,, only the closely side picture 202 of Fig. 9 is found range, measure ranging data AFDLL1, AFDRR1 for ranging region LL, RR.
And then, these ranging datas as reference data, are stored into it in memory storage 115 (125) as adjusted value.In addition, as the gradient data, gradient data AFKL, the AFKR with a medial region stores in the memory storage 115 (125) as adjusted value respectively.
As mentioned above, use is stored in the adjusted value in the memory storage 115 (125), during actual range finding of CPU114 (124) by Fig. 2 or distance measuring equipment shown in Figure 3, each ranging region for C, L, R, according to formula (13)～(15) or formula (16)～(18), for each ranging region of LL, RR,, calculate the 1/L data according to formula (19)～(20) formula.
1/L＝AFKC×(AFDC-AFDC1)+(1/L1) …(13)
1/L＝AFKL×(AFDL-AFDL1)+(1/L1) …(14)
1/L＝AFKR×(AFDR-AFDR1)+(1/L1) …(15)
1/L＝AFKC×(AFDC-AFDC2)+(1/L2) …(16)
1/L＝AFKL×(AFDL-AFDL2)+(1/L2) …(17)
1/L＝AFKR×(AFDR-AFDR2)+(1/L2) …(18)
1/L＝AFKL×(AFDLL-AFDLL1)+(1/L1) …(19)
1/L＝AFKR×(AFDRR-AFDRR1)+(1/L1) …(20)
The ranging data of ranging region C, L when herein, AFDC, AFDL, AFDR, AFDLL, AFDRR are respectively actual range findings, R, LL, RR.
That is, from formula (13)～(20) as can be known,, calculate the 1/L data according to the straight line shown in Figure 10 (a) for each ranging region of C, L, R, for each ranging region of LL, RR, then calculate the 1/L data according to the straight line shown in Figure 10 (b).
The set-up procedure of the 2nd embodiment is identical with above-mentioned the 1st embodiment with the range finding step.
According to above-mentioned the 2nd embodiment,, also can strengthen the width of remote side picture 203 even under situation with 5 above ranging regions.In addition, because gradient data as exterior lateral area LL, RR, be not to adopt the gradient data AFKC that measures middle section C gained, measure than the area L in its more close outside, gradient data AFKL, the AFKR of R gained, therefore can further improve distance accuracy but adopt.
(the 3rd embodiment)
Figure 11 is the block scheme of expression according to the structure of the adjusting gear of the 3rd embodiment of the present invention.
In Figure 11, reference symbol 301 is camera bodies that the distance measuring equipment of adjusting is installed.Reference symbol 302 is the closely side pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Reference symbol 303 is the middle distance pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.Reference symbol 304 is the remote pictures that ranging data are converted to the straight line calculating adjustment usefulness of 1/L data.
In addition, reference symbol 305 is control device, and it is according to coming self-adjusting with personal computer (PC) 306 signal, and the driving up and down of picture 302 closely etc. is controlled.Reference symbol 306 is to adjust with personal computer (PC), and it controls, carries out the computing of adjusted value etc. to the camera body of adjusting 301.Reference symbol 307 is the power supplys that are used to drive camera body 301.
In addition, reference symbol 308a is the light that arrives above-mentioned picture 302,303 and 304 from camera body 301, and it is used for being found range in the zone of the central portion of photographic picture.As shown in the figure, this light 308a arrives all closely pictures 302, middle distance picture 303 and remote picture 304.
Reference symbol 308b is the light that arrives above-mentioned picture 302,303 from camera body 301, and it is used for being found range in the zone in above-mentioned central portion left side.Though this light 308b can arrive closely picture 302 and middle distance picture 303, does not arrive remote picture 304.
Reference symbol 308c is the light that arrives above-mentioned picture 302,303 from camera body 301, and it is used for being found range in the zone on above-mentioned central portion right side.This light 308c also can arrive closely picture 302 and middle distance picture 303, but does not arrive remote picture 304.
In addition, reference symbol L1 is from the distance measuring equipment of camera body 301 to the distance of picture 302 closely.Reference symbol L2 is the distance from the distance measuring equipment of camera body 301 to middle distance picture 303.Reference symbol L3 is the distance from the distance measuring equipment of camera body 301 to remote picture 304.
Figure 12 (a) and (b) are the synoptic diagram that ranging data are converted to the near linear of 1/L data that are used for carrying out on the adjusting gear according to the 3rd embodiment of the present invention.
Figure 12 (a) is the synoptic diagram that expression is converted to the ranging data of the ranging region of central authorities the near linear of 1/L data.Reference symbol AFDC1 is the ranging data of the central ranging region during to 302 range findings of picture closely.The ranging data of the central ranging region when reference symbol AFDC2 is a centering apart from picture 303 range findings.Reference symbol AFDC3 is the ranging data of the central ranging region during to 304 range findings of remote picture.Reference symbol AFKCN is the gradient data of low coverage side near linear, and it is according to adjusting distance L 1, L2 being set and calculating at ranging data AFDC1, the AFDC2 of the central ranging region of this distance with picture.Reference symbol AFKCF is the gradient data of remote side near linear, and it is according to adjusting distance L 2, L3 being set and calculating at this ranging data AFDC2 apart from the central ranging region of locating, AFDC3 with picture.
Figure 12 (b) is the synoptic diagram that expression is used for the ranging data of left and right sides ranging region is converted to the near linear of 1/L data.
Among Figure 12 (b), reference symbol AFDL1 is the ranging data of the left ranging region during to 302 range findings of picture closely.Reference symbol AFDR1 is the ranging data of the right ranging region during to 302 range findings of picture closely.The ranging data of the left ranging region when reference symbol AFDL2 is a centering apart from picture 303 range findings.The ranging data of the right ranging region when reference symbol AFDR2 is a centering apart from picture 303 range findings.
In addition, reference symbol AFKLN is the gradient data of low coverage side near linear, and it is according to adjusting distance L 1, L2 being set and calculating at ranging data AFDL1, the AFDL2 of the left ranging region of this distance with picture.
In addition, reference symbol AFKRN is the gradient data of low coverage side near linear, and it is according to adjusting distance L 1, L2 being set and calculating at ranging data AFDR1, the AFDR2 of the right ranging region of this distance with picture.
In addition, reference symbol AFKCF is the gradient data of remote side near linear, it is according to adjusting with distance L 2, L3 are set and calculate at ranging data AFDC2, the AFDC3 of the central ranging region of this distance of picture, its be used for about regional ranging data be converted to the 1/L data.
(main points of the 3rd embodiment)
The 3rd embodiment is using the adjusting gear of structure as shown in figure 11,2 straight lines are stored under the situation as the memory storage 115 (125) of Fig. 2 or distance measuring equipment shown in Figure 3 as adjusted value, for the straight line of side closely, to central authorities and left and right sides ranging region, respectively to closely picture 302, middle distance picture 303 are found range mensuration ranging data AFDC1, AFDL1, AFDR1, AFDC2, AFDL2, AFDR2.
And then, according to these ranging datas, according to formula (21)～(23), gradient data AFKCN, AFKLN, the AFKRN of the low coverage side straight line of the range finding characteristic straight line of the distance measuring equipment of calculating shown in Fig. 12 (a) and (b), with these gradient data AFKCN, AFKLN, AFKRN, and ranging data AFDC2, AFDL2, AFDR2 are stored in the memory storage 115 (125) as adjusted value as reference data.
AFKCN＝{(1/L1)-(1/L2)}/(AFDC1-AFDC2) …(21)
AFKLN＝{(1/L1)-(1/L2)}/(AFDL1-AFDL2) …?(22)
AFKRN＝{(1/L1)-(1/L2)}/(AFDR1-AFDR2) …(23)
In addition,, have only central ranging region that the remote picture 304 of Figure 11 is found range, measure ranging data AFDC3 for the straight line of remote side.
And then, ranging data AFDC2 according to these data and middle distance picture 303, according to formula (24), the gradient data AFKCF of the remote side straight line of the range finding characteristic straight line of the distance measuring equipment of calculating shown in Figure 12 (a), AFKCF is stored in the memory storage 115 (125) as adjusted value with these gradient data.
AFKCF＝{(1/L2)-(1/L3)}/(AFDC2-AFDC3) …?(24)
For left and right sides ranging region, the data AFKCF of middle section as the gradient data storage in memory storage 115 (125) as adjusted value.
As mentioned above, use is stored in the adjusted value in the memory storage 115 (125), when the CPU114 (124) of the distance measuring equipment that utilizes picture 2 or picture 3 is actual when carrying out the range finding of each ranging region, under the ranging data situation nearer than reference data, for each ranging region, by formula (25)～(27), calculate the 1/L data.
1/L＝AFKCN×(AFDC-AFDC2)+(1/L2) …(25)
1/L＝AFKLN×(AFDL-AFDL2)+(1/L2) …(26)
1/L＝AFKRN×(AFDR-AFDR2)+(1/L2) …(27)
Central authorities when herein, AFDC, AFDL, AFDR are respectively actual range findings, left and right ranging data.
In addition, under the ranging data situation far away,,, calculate the 1/L data by formula (28)～(30) for each ranging region than reference data.
1/L＝AFKCF×(AFDC-AFDC2)+(1/L2) …(28)
1/L＝AFKCF×(AFDL-AFDL2)+(1/L2) …(29)
1/L＝AFKCF×(AFDR-AFDR2)+(1/L2) …(30)
Central authorities when herein, AFDC, AFDL, AFDR are respectively actual range findings, left and right ranging data.
That is the 3rd embodiment is in the distance measuring equipment of 1/L conversion with the near linear data that has more than 2, the 1st embodiment is applied to the near linear data conditions of remote side.As its variation, also the 2nd embodiment can be applied to the near linear data of remote side.
According to the 3rd above-mentioned embodiment,, also can obtain the effect same with other embodiment even in distance measuring equipment with the near linear data more than 2.
In addition, in the explanation of the respective embodiments described above, adjustment to the multipoint ranging apparatus that can find range to a plurality of zones of the left and right directions in the photographic picture is illustrated, but also can be used for the adjustment of the multipoint ranging apparatus that can find range to a plurality of zones of a plurality of zones of the above-below direction in the photographic picture or 2 dimensions in the photographic picture.
In addition,, can change, can only use one to adjust picture if make as the distance measuring equipment of checked property and the interval of adjusting between the picture because the size of employed a plurality of adjustment pictures can be identical in the explanation of the respective embodiments described above.That is it is first-class that either party or two sides in above-mentioned distance measuring equipment or the adjustment picture are arranged on guide rail, and it can be moved forward and backward, and measures the closely data of side under both approaching states, draws back both intervals then, measures the data of remote side.And then, according to two determination datas, can calculate gradient data or reference data.
Therefore, as mentioned above, according to the present invention, a kind of adjusting gear can be provided, it neither makes adjustment maximize with picture, does not also make the distance accuracy variation of the ranging region of periphery, and can adjust the distance measuring equipment that the scope of the broadness in the photographic picture is found range.
Claims (18)
1. adjusting gear, be used for theoretical value that the deviation owing to the optical system of distance measuring equipment or assembling is caused and the error between the actual ranging data and carry out electric correction, wherein this distance measuring equipment can be found range to a plurality of zones in the photographic picture, and this adjusting gear is characterised in that
Described adjusting gear has a plurality of adjustment pictures, and when adjusting, they are set at the position that has different distance with described distance measuring equipment,
For the ranging region of the central portion of described photographic picture, according to from the ranging data of described distance measuring equipment when the distance of described a plurality of adjustment pictures is found range, obtain gradient error correction adjusted value and offset correction adjusted value,
Ranging region for the periphery of described photographic picture, the gradient error correction adjusted value of ranging region that uses described central portion is as gradient error correction adjusted value, ranging data when closely the distance of the picture of side is found range according to two pictures to the gradient error correction adjusted value from described distance measuring equipment to the ranging region that is used for obtaining described central portion is obtained the offset correction adjusted value.
2. adjusting gear as claimed in claim 1 is characterized in that,
The distance measuring equipment of adjusting,, is found range according to the incoming position of the flashlight of exporting from this infrared rays receiver with the flashlight of infrared rays receiver acceptance by above-mentioned subject reflection to subject superframe signal light from grenade instrumentation.
3. adjusting gear as claimed in claim 1 is characterized in that,
The distance measuring equipment of adjusting is found range according to the phase differential of the picture of the described subject that is subjected to light by at least one pair of infrared rays receiver.
4. adjusting gear as claimed in claim 1 is characterized in that,
Described a plurality of adjustment pictures big or small roughly the same.
5. adjusting gear as claimed in claim 1 is characterized in that,
Described distance measuring equipment can be found range to a plurality of zones of described central portion,
For the ranging region of described periphery, use the gradient error correction adjusted value of ranging region contiguous in a plurality of ranging regions of described central portion, as gradient error correction adjusted value.
6. adjusting gear as claimed in claim 1 is characterized in that,
Described adjusting gear has 3 and adjusts picture, and when adjusting, they are set at the position that has different distance with described distance measuring equipment,
For the theoretical value of the remote side of electric correction and the error between the actual ranging data,
Ranging region for periphery, use the gradient error correction adjusted value of remote side of the ranging region of described central portion, as gradient error correction adjusted value, ranging data when the distance of the adjustment picture of the centre of 3 pictures of the gradient error correction adjusted value from described distance measuring equipment to the ranging region that is used for obtaining described central portion is found range is obtained the offset correction adjusted value.
7. the adjusting gear of the distance measuring equipment of a camera is characterized in that,
Have: the 1st and the 2nd picture, they are configured in the different distance place, and size is roughly the same; The 1st pick-up unit, it is according to the range finding result of the described the 1st and the 2nd picture, detects the droop error of distance measuring equipment of described camera and the side-play amount of range finding characteristic; The 2nd pick-up unit, it is according to the range finding result of described the 1st picture, detects the side-play amount of range finding characteristic of the distance measuring equipment of described camera;
For the central portion of photographic picture, use droop error that is detected by described the 1st pick-up unit and the side-play amount of finding range characteristic, determine the adjusted value of the range error of described camera,
For the periphery of photographic picture, use the side-play amount of the range finding characteristic that is detected by described the 2nd pick-up unit and the droop error that is detected by described the 1st pick-up unit, determine the adjusted value of the range error of described camera.
8. the method for adjustment of the distance measuring equipment of a camera is characterized in that, has following steps:
The 1st step, according to configurable range finding result picture, that be disposed at the picture of the 1st distance and the 2nd distance in the different distance place, detect described camera distance measuring equipment droop error and the range finding characteristic side-play amount;
The 2nd step only according to the range finding result who is disposed at the picture of described the 1st distance, detects the side-play amount of range finding characteristic of the distance measuring equipment of described camera;
The 3rd step for the central portion of photographic picture, is utilized droop error that is detected by described the 1st step and the side-play amount of finding range characteristic, determines the adjusted value of the range error of described camera;
The 4th step for the periphery of photographic picture, is utilized the side-play amount of the range finding characteristic that is detected by described the 2nd step and the droop error that is detected by described the 1st step, determines the adjusted value of the range error of described camera.
9. method of adjustment as claimed in claim 8 is characterized in that,
Described picture is a plurality of adjustment pictures that are disposed at the different distance place.
10. method of adjustment as claimed in claim 9 is characterized in that,
Described a plurality of adjustment is big or small roughly the same with picture.
11. method of adjustment as claimed in claim 8 is characterized in that,
The distance measuring equipment of adjusting,, is found range according to the incoming position of the flashlight of exporting from this infrared rays receiver with the flashlight of infrared rays receiver acceptance by described subject reflection to subject superframe signal light from grenade instrumentation.
12. method of adjustment as claimed in claim 8 is characterized in that,
The distance measuring equipment of adjusting is according to found range by the phase differential of the described shot object image of light by at least one pair of infrared rays receiver.
13. method of adjustment as claimed in claim 8 is characterized in that,
Described distance measuring equipment can be found range to a plurality of zones of described central portion.
14. method of adjustment as claimed in claim 8 is characterized in that,
Described adjusting gear has 3 and adjusts picture, and when adjusting, they are set at the position that has different distance with described distance measuring equipment.
15. a distance measuring equipment can be found range to a plurality of zones in the photographic picture, and be had: adjust circuit, be used for the theoretical value that caused by range-finding optical system or assembling deviation and the error between the actual ranging data are carried out electric correction; And storer, being used for storing the adjusted value that is used to proofread and correct, this distance measuring equipment is characterised in that,
The adjusted value that is stored in the described storer is to calculate according to the range finding result from described distance measuring equipment to the adjustment picture that is arranged at the different a plurality of positions of described distance measuring equipment distance,
For the ranging region of the central portion of described photographic picture, be according to from the ranging data of described distance measuring equipment when the distance of described a plurality of adjustment pictures is found range, gradient error correction adjusted value that calculates and offset correction adjusted value,
Ranging region for the periphery of described photographic picture, gradient error correction adjusted value is the gradient error correction adjusted value of the ranging region of described central portion, and the offset correction adjusted value is that the ranging data when closely the distance of the picture of position is found range according to the picture to two places of the gradient error correction adjusted value from described distance measuring equipment to the ranging region that is used for obtaining described central portion is obtained.
16. distance measuring equipment as claimed in claim 15 is characterized in that,
This distance measuring equipment, is accepted to be found range according to the incoming position of the flashlight of exporting from this infrared rays receiver by the flashlight that described subject reflected with infrared rays receiver to subject superframe signal light by grenade instrumentation.
17. distance measuring equipment as claimed in claim 15 is characterized in that,
This distance measuring equipment is according to found range by the phase differential of the described shot object image of light by at least one pair of infrared rays receiver.
18. the adjusting gear of a distance measuring equipment, this distance measuring equipment has the storer of storage adjusted value and utilizes described adjusted value the error between measured value and the theoretical value to be carried out the correcting circuit of electric correction, and can find range to a plurality of zones in the zone, this adjusting gear is used to determine described corrected value, it is characterized in that having:
Adjust picture, it is arranged at the position of leaving described distance measuring equipment;
The 1st computing circuit for the ranging region of the central portion in described zone, according to a plurality of ranging datas of the described adjustment picture that is arranged on 2 interval locations, is obtained gradient error correction adjusted value and offset correction adjusted value;
The 2nd computing circuit for the ranging region of the periphery in described zone, is obtained from the gradient error correction adjusted value of described the 1st computing circuit and based on the offset correction adjusted value of the single ranging data from described distance measuring equipment to described adjustment picture;
Control circuit, it will be stored in the described storer by the adjusted value that the described the 1st and the 2nd computing circuit is calculated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP059343/2002 | 2002-03-05 | ||
| JP2002059343A JP2003255218A (en) | 2002-03-05 | 2002-03-05 | Adjustment device for range finder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1442746A true CN1442746A (en) | 2003-09-17 |
| CN1289961C CN1289961C (en) | 2006-12-13 |
Family
ID=27800151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03104922 Expired - Fee Related CN1289961C (en) | 2002-03-05 | 2003-02-27 | Distance measuring apparatus, adjusting device and adjusting method used for said distance measuring apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003255218A (en) |
| CN (1) | CN1289961C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650691A (en) * | 2011-02-24 | 2012-08-29 | 原相科技股份有限公司 | Distance measuring system and method with correcting function |
| TWI412731B (en) * | 2008-05-02 | 2013-10-21 | Hon Hai Prec Ind Co Ltd | Distance measuring system, distance measuring method, electronical apparatus system and remote controller |
| CN106842224A (en) * | 2016-12-28 | 2017-06-13 | 北京小鸟看看科技有限公司 | For the mounting structure detection method and device of the range sensor of electronic equipment |
| CN110595363A (en) * | 2019-08-21 | 2019-12-20 | 广州幻境科技有限公司 | Three-dimensional virtual modeling method, system, device and storage medium |
| CN111025310A (en) * | 2018-10-09 | 2020-04-17 | 光宝电子(广州)有限公司 | Error correction system and method thereof |
| CN111335633A (en) * | 2020-03-06 | 2020-06-26 | 中核华辰建筑工程有限公司 | Multifunctional assembled building assembly construction floor combined leveling device and method |
| CN113227828A (en) * | 2018-12-26 | 2021-08-06 | 韩商未来股份有限公司 | Nonlinear distance error correction method for three-dimensional distance measurement camera using pulse phase shift |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6489817B2 (en) * | 2014-12-10 | 2019-03-27 | キヤノン株式会社 | Imaging apparatus and control method thereof |
-
2002
- 2002-03-05 JP JP2002059343A patent/JP2003255218A/en not_active Withdrawn
-
2003
- 2003-02-27 CN CN 03104922 patent/CN1289961C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI412731B (en) * | 2008-05-02 | 2013-10-21 | Hon Hai Prec Ind Co Ltd | Distance measuring system, distance measuring method, electronical apparatus system and remote controller |
| CN102650691A (en) * | 2011-02-24 | 2012-08-29 | 原相科技股份有限公司 | Distance measuring system and method with correcting function |
| CN102650691B (en) * | 2011-02-24 | 2014-01-22 | 原相科技股份有限公司 | Distance measuring system and method with correcting function |
| CN106842224A (en) * | 2016-12-28 | 2017-06-13 | 北京小鸟看看科技有限公司 | For the mounting structure detection method and device of the range sensor of electronic equipment |
| CN111025310A (en) * | 2018-10-09 | 2020-04-17 | 光宝电子(广州)有限公司 | Error correction system and method thereof |
| CN113227828A (en) * | 2018-12-26 | 2021-08-06 | 韩商未来股份有限公司 | Nonlinear distance error correction method for three-dimensional distance measurement camera using pulse phase shift |
| CN113227828B (en) * | 2018-12-26 | 2024-04-16 | 韩商未来股份有限公司 | Nonlinear distance error correction method for three-dimensional distance measurement camera using pulse phase shift |
| CN110595363A (en) * | 2019-08-21 | 2019-12-20 | 广州幻境科技有限公司 | Three-dimensional virtual modeling method, system, device and storage medium |
| CN111335633A (en) * | 2020-03-06 | 2020-06-26 | 中核华辰建筑工程有限公司 | Multifunctional assembled building assembly construction floor combined leveling device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003255218A (en) | 2003-09-10 |
| CN1289961C (en) | 2006-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1218159C (en) | Optical metering installation | |
| CN2622674Y (en) | Motion transducer | |
| CN100344147C (en) | Apparatus for forming images onto record paper | |
| CN1287232C (en) | Image forming apparatus | |
| CN1831519A (en) | Brightness measuring apparatus and measuring method thereof | |
| CN1812502A (en) | Image pickup apparatus, camera main body thereof and interchangeable lens | |
| CN1738441A (en) | Automatic keystone distortion correction using a part of edges of a screen | |
| CN1823523A (en) | Projector apparatus, inclination angle obtaining method, and projection image correction method | |
| CN1800836A (en) | Image testing device | |
| CN1289961C (en) | Distance measuring apparatus, adjusting device and adjusting method used for said distance measuring apparatus | |
| CN1959537A (en) | Around exposure device irradiated by laser beam and uv-ray, and method thereof | |
| CN1836184A (en) | Image device | |
| CN1203368C (en) | Focus regulating method for photographic lens | |
| CN1833156A (en) | Inclination angle detection device and inclination angle detection method | |
| CN1401982A (en) | Lens detecting device and detecting sheet | |
| CN1684836A (en) | Exposure system and production method for exposure system | |
| CN1645181A (en) | Camera and focus detection device | |
| CN1180308C (en) | Range-finding apparatus and method and camera using the same thereof | |
| CN1624560A (en) | Ranging apparatus installed in camera | |
| CN1885145A (en) | Camera having focusing device | |
| CN101042298A (en) | Optical ranging sensor and warm water wash toilet seat | |
| CN1949022A (en) | Optical scanning apparatus and image-forming apparatus using the same | |
| CN1176401C (en) | Range-finding apparatus and method | |
| CN1347001A (en) | Range finding device and adjusting device therefor | |
| CN1287183C (en) | Lens changeable reconditioner and focus position measuring machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20170227 |