CN101900816A - Reverse image device with ranging function - Google Patents
Reverse image device with ranging function Download PDFInfo
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- CN101900816A CN101900816A CN200910142345XA CN200910142345A CN101900816A CN 101900816 A CN101900816 A CN 101900816A CN 200910142345X A CN200910142345X A CN 200910142345XA CN 200910142345 A CN200910142345 A CN 200910142345A CN 101900816 A CN101900816 A CN 101900816A
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- car
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- image device
- reverse image
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Abstract
A reverse image device with a ranging function is composed of a luminous source, a lens group and a display, wherein the luminous source is arranged at the tail of an automobile and can project a ray which can generate a pattern on an object to be measured; the lens group is arranged at the tail of the automobile and is internally provided with a lens, a photo-sensitive component and a circuit board, the lens collects images at the rear part of the automobile to be projected on the photo-sensitive component, and the circuit board calculates the off-car distance between the object to be measured and the tail of the automobile based on the pattern compactness read by the photo-sensitive component; and the display is arranged in the automobile for a driver to view and is electrically connected with the lens group so as to enable the display to display the off-car distance between the image of the object to be measured and the object to be measured. By pattern compactness projected by the luminous source, the off-car distance of the object to be measured is calculated so as to avoid the driver from judging the off-car distance of the object to be measured by mistake; and the ray is invisible light, thus having no influence on coming vehicles or pedestrians at the back.
Description
Technical field
The present invention mainly discloses a kind of reverse image device that contains distance measurement function, refer to especially a kind of utilize ray cast at determinand to record the reverse image device of distance away from the car.
Background technology
With reference to Fig. 9 to Figure 11, synoptic diagram and display frame for known reverse image device, it has a camera lens 101 and a display 102, and there are the first determinand a and the second determinand b in the automobile rear, wherein the first determinand a equates approximately with height and the size of the second determinand b, when camera lens 101 is gathered the first determinand a and the second determinand b respectively, on the picture of display 102, the visual distance away from the car of the first determinand a is near than the visual distance away from the car of the second determinand b, visually with in fact is consistent.Continuation is with reference to Figure 12 to Figure 14, there are the 3rd determinand c and the 4th determinand d in the automobile rear, the height of the 3rd determinand c is less than the height of the 4th determinand d, when camera lens 101 is gathered the 3rd determinand c and the 4th determinand c respectively, on the picture of display 102, the 3rd determinand c is identical with height and the size of the 4th determinand d, but in fact the distance away from the car of the 4th determinand d is far away than the 3rd determinand c, and therefore the obtained image of commonly using of reverse image device can't be judged the distance away from the car of determinand really.
With reference to Figure 15, in order to address the above problem, someone uses two camera lenses 103,104 to remove to record the distance away from the car of determinand e, it utilizes the triangle Positioning Principle to use trigonometric function to calculate the distance away from the car of determinand e, yet use two camera lenses to remove to measure determinand and must spend higher cost, do not meet economic needs in fact, by this, the inventor is devoted to study and a kind ofly can records the reverse image device that the determinand distance away from the car can not spend higher cost again, to solve the problem on the prior art.
Because the disappearance of above-mentioned conventional construction, the inventor invents out a kind of reverse image device that contains distance measurement function, and it can overcome all shortcomings of above-mentioned conventional construction.
Summary of the invention
The objective of the invention is to the cost technical problems of high that spends when solving the distance away from the car that has reverse image device judgement determinand now.
For achieving the above object, the invention provides a kind of reverse image device that contains distance measurement function, include:
One light emitting source, it is located at automobile tail, and this light emitting source projects a light, and this light also produces a pattern on determinand;
One lens group, it is located at automobile tail, have a camera lens, a photosensory assembly and a circuit board in this lens group, this camera lens is gathered the image at automobile rear on described photosensory assembly, this circuit board calculates the distance away from the car of described determinand and automobile tail again according to the tight ness rating of the pattern that this photosensory assembly read;
One display, it is located in the car and watches for the driver, and electrically connects this lens group, and this display shows the distance away from the car of determinand image and determinand.
Beneficial effect of the present invention is, is incident upon the tight ness rating of pattern on the determinand by light emitting source, calculates the distance away from the car of determinand, uses and avoids the erroneous judgement of driver to the determinand distance away from the car; This light is invisible light, so back car or pedestrian are affected.
Other purpose, advantage and novel characteristics of the present invention will be more obvious from the following detailed description and related drawings.
Description of drawings
Fig. 1 contains the structural representation of the reverse image device of distance measurement function for the present invention;
Fig. 2 is the thin portion enlarged drawing of Fig. 1 of the present invention;
Fig. 3 contains the use synoptic diagram of the reverse image device of distance measurement function for the present invention;
Fig. 4 contains the display synoptic diagram of the reverse image device of distance measurement function for the present invention, show the image and the distance away from the car of first determinand;
Fig. 5 contains the display synoptic diagram of the reverse image device of distance measurement function for the present invention, show the image and the distance away from the car of second determinand;
Fig. 6 contains another use synoptic diagram of the reverse image device of distance measurement function for the present invention;
Fig. 7 contains the display synoptic diagram of the reverse image device of distance measurement function for the present invention, show the image and the distance away from the car of first determinand;
Fig. 8 contains the display synoptic diagram of the reverse image device of distance measurement function for the present invention, show the image and the distance away from the car of the 3rd determinand;
Fig. 9 is the synoptic diagram of known reverse image device;
Figure 10 is the display frame of known reverse image device;
Figure 11 is the display frame of known reverse image device;
Figure 12 is the synoptic diagram of known reverse image device;
Figure 13 is the display frame of known reverse image device;
Figure 14 is the display frame of known reverse image device;
Figure 15 is the synoptic diagram of another kind of reverse image device.
Description of reference numerals:
The 101-camera lens; The 102-display; The 103-camera lens; The 104-camera lens; A-first determinand; B-second determinand; C-the 3rd determinand; D-the 4th determinand; The e-determinand; The 10-light emitting source; 11-light; The 12-pattern; The 20-lens group; The 21-camera lens; The 22-photosensory assembly; The 23-circuit board; The 30-display; 31-image viewing area; 32-distance display district; A-first determinand; B-second determinand; C-the 3rd determinand; D-the 4th determinand; The L1-distance away from the car; The L2-distance away from the car; The L3-distance away from the car; The L4-distance away from the car; The H1-height; The H2-height; The H3-height; The H4-height.
Embodiment
Relevant the technology used in the present invention, means and effect thereof, now lift a preferred embodiment and cooperate graphic detailed description as after, this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patented claim.
With reference to Fig. 1, for the present invention contains the use synoptic diagram of distance measurement function, the present invention includes a light emitting source 10, a lens group 20 and a display 30, to record image and the distance away from the car of the first determinand A and the second determinand B, wherein:
With reference to Fig. 2 to Fig. 5, this light emitting source 10 is installed in the automobile rear, this light emitting source 10 can project a light 11, this light 11 can be projeced on determinand A, the B at automobile rear, and on determinand A, B, show a pattern 12, this pattern 12 is regularly arranged netted grid, this light 11 is invisible light, so back car or pedestrian are affected, the present invention is incident upon the tight ness rating of determinand A, the last grid of B by this pattern 12, can record the distance away from the car between automobile tail and determinand A, B.
This lens group 20 is located at the automobile rear, this lens group 20 has a camera lens 21, a photosensory assembly 22 and a circuit board 23, this camera lens 21 is gathered the image of determinand A, B on photosensory assembly 22, this photosensory assembly 22 is obtained the image of automobile rear determinand A, B, and this photosensory assembly 22 can read light 11 and be incident upon pattern 12 on determinand A, the B, and the pattern 12 that this circuit board 23 is read according to this photosensory assembly 21 again calculates the distance away from the car of determinand A, B and automobile tail.Wherein this photosensory assembly 22 be photoelectric coupling assembly (Charge Coupled Device, CCD) or complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor, photosensory assembly CMOS).
This display 30 is installed in the place ahead in the car, watch for the driver, this display 30 electrically connects this lens group 20, to receive image behind the car that lens group 20 collected, have an image viewing area 31 and a distance display district 32 on this display 30, in present embodiment, this image viewing area 31 and this distance display district 32 are positioned on the picture of same screen, certainly this image viewing area 31 and this distance display district 32 also can be on the pictures of different screens, show the rear image on the image viewing area 31, show determinand A in this distance display district 32, the distance away from the car of B and automobile tail.
The distance away from the car of supposing the first determinand A and the tailstock is L1, the distance away from the car of the second determinand B and the tailstock is L2, the distance away from the car L1 of the first determinand A is less than the distance away from the car L2 of the second determinand B, and the height H 1 of the first determinand A is identical with the height H 2 of the second determinand B.Lens group 20 is gathered the image of the first determinand A and the second determinand B respectively, when light emitting source 10 respectively throw light 11 survey when treating thing B at the first determinand A and second, as Fig. 4 and shown in Figure 5, the tight ness rating of the pattern that produces 12 is than the tight ness rating height of the second determinand B pattern that produces 12 on one's body on one's body to show the first determinand A on this display 30, and the area that the first determinand A occupies is big than the area that the second determinand B occupies.When having plural determinand on this image viewing area 31, this distance display district 31 can show the nearer determinand of distances away from the car.
With reference to Fig. 6 to Fig. 8, another use synoptic diagram that contains the reverse image device of distance measurement function for the present invention, there are the 3rd determinand C and the 4th determinand D in the automobile rear, the distance away from the car of supposing the 3rd determinand C and the tailstock is L3, the distance away from the car of the 4th determinand D and the tailstock is L4, the distance away from the car L3 of the 3rd determinand C is less than the distance away from the car L4 of the 4th determinand D, and the height H 3 of the 3rd determinand C is less than the height H 4 of the 4th determinand D, as shown in Figures 7 and 8, the tight ness rating of the pattern that produces 12 is than the tight ness rating height of the 4th determinand D pattern that produces 12 on one's body on one's body to show the 3rd determinand C on this display 30, and the area that the 3rd determinand C occupies is identical with the area that the 4th determinand D occupies.Though the image size that the 3rd determinand C and the 4th determinand D present in image viewing area 31 is identical, the driver still can be learnt distance away from the car L3, the L4 of the 3rd determinand C and the 4th determinand D by distance display district 32, can't judge distance away from the car L3, the L4 of determinand C, D to avoid the driver.
Can summarize the present invention with regard to the above and have following advantage:
1. the present invention contains the reverse image device of distance measurement function, and it is incident upon the tight ness rating of pattern on the determinand by light emitting source, calculates the distance away from the car of determinand, uses and avoids the driver to the erroneous judgement of determinand distance away from the car.
2. the present invention contains the reverse image device of distance measurement function, and wherein this light is black light, so back car or pedestrian are affected.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and the spirit and the range that limit in claim can carry out many modifications, variation or equivalence to it, but they all will fall within the scope of protection of the present invention.
Claims (7)
1. a reverse image device that contains distance measurement function is characterized in that, includes:
One light emitting source, it is located at automobile tail, and this light emitting source projects a light, and this light also produces a pattern on determinand;
One lens group, it is located at automobile tail, have a camera lens, a photosensory assembly and a circuit board in this lens group, this camera lens is gathered the image at automobile rear on described photosensory assembly, this circuit board calculates the distance away from the car of described determinand and automobile tail again according to the tight ness rating of the pattern that this photosensory assembly read;
One display, it is located in the car and watches for the driver, and electrically connects this lens group, and this display shows the distance away from the car of determinand image and determinand.
2. the reverse image device that contains distance measurement function as claimed in claim 1 is characterized in that, this photosensory assembly is the photosensory assembly of photoelectric coupling assembly.
3. the reverse image device that contains distance measurement function as claimed in claim 1 is characterized in that, this photosensory assembly is the photosensory assembly of complementary metal oxide semiconductor (CMOS).
4. the reverse image device that contains distance measurement function as claimed in claim 1 is characterized in that, this pattern is regularly arranged netted grid.
5. the reverse image device that contains distance measurement function as claimed in claim 1 is characterized in that, this light is invisible light.
6. the reverse image device that contains distance measurement function as claimed in claim 1 is characterized in that, has an image viewing area and a distance display district on this display, to show the image and the distance away from the car of determinand.
7. the reverse image device that contains distance measurement function as claimed in claim 6 is characterized in that, when having two determinands on this image viewing area, this distance display district can show the determinand that distance away from the car is nearer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910142345XA CN101900816A (en) | 2009-06-01 | 2009-06-01 | Reverse image device with ranging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910142345XA CN101900816A (en) | 2009-06-01 | 2009-06-01 | Reverse image device with ranging function |
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| Publication Number | Publication Date |
|---|---|
| CN101900816A true CN101900816A (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910142345XA Pending CN101900816A (en) | 2009-06-01 | 2009-06-01 | Reverse image device with ranging function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891809A (en) * | 2015-12-17 | 2017-06-27 | 合盈光电科技股份有限公司 | Image detection system of transportation means |
| CN106926794A (en) * | 2015-12-31 | 2017-07-07 | 合盈光电科技股份有限公司 | Vehicle monitoring system and method thereof |
| JP2017197181A (en) * | 2016-04-28 | 2017-11-02 | 合盈光電科技股▲ふん▼有限公司Ｈ．Ｐ．Ｂ． Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．， Ｌｔｄ． | Vehicle safety protection system |
-
2009
- 2009-06-01 CN CN200910142345XA patent/CN101900816A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891809A (en) * | 2015-12-17 | 2017-06-27 | 合盈光电科技股份有限公司 | Image detection system of transportation means |
| CN106891809B (en) * | 2015-12-17 | 2019-10-22 | 合盈光电科技股份有限公司 | Image detection system of transportation means |
| CN106926794A (en) * | 2015-12-31 | 2017-07-07 | 合盈光电科技股份有限公司 | Vehicle monitoring system and method thereof |
| CN106926794B (en) * | 2015-12-31 | 2019-12-31 | 合盈光电科技股份有限公司 | Vehicle monitoring system and method thereof |
| JP2017197181A (en) * | 2016-04-28 | 2017-11-02 | 合盈光電科技股▲ふん▼有限公司Ｈ．Ｐ．Ｂ． Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．， Ｌｔｄ． | Vehicle safety protection system |
| CN107336669A (en) * | 2016-04-28 | 2017-11-10 | 合盈光电科技股份有限公司 | Vehicle safety protection system and method thereof |
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Application publication date: 20101201 |