CN108415216A - A kind of prism total reflection twin-lens is total to chip module - Google Patents
A kind of prism total reflection twin-lens is total to chip module Download PDFInfo
- Publication number
- CN108415216A CN108415216A CN201810263555.3A CN201810263555A CN108415216A CN 108415216 A CN108415216 A CN 108415216A CN 201810263555 A CN201810263555 A CN 201810263555A CN 108415216 A CN108415216 A CN 108415216A
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- China
- Prior art keywords
- prism
- lens
- right angle
- isosceles right
- total
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Elements Other Than Lenses (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a kind of prism total reflection twin-lens to be total to chip module, two groups of lens assemblies including symmetrical distribution and optical axis coincidence, the trigone microscope group being arranged between two groups of lens assemblies and the imaging sensor being arranged below trigone microscope group, the trigone microscope group is arranged symmetrically composition due to two isosceles right angle prisms, the two isosceles right angle prisms are respectively provided in vertical direction and with lens assembly towards the opposite plane of incidence, the isosceles right angle prism has perpendicular with the plane of incidence and towards the exit facet of imaging sensor, the inclined-plane of the isosceles right angle prism is reflecting surface, light enters from two groups of lens assemblies, respectively after two isosceles right angle prisms are totally reflected, steering is incident upon on the same imaging sensor, efficiently reduce image error.It is reflected moreover, being arranged symmetrically guiding light respectively using two prisms, carries out coating film treatment without the working face to prism, reduce the process costs of product.
Description
Technical field
The present invention relates to optical image technology field, more particularly to a kind of prism total reflection twin-lens is total to chip module.
Background technology
Image capturing system operation principle is that light is entered by camera lens at present, is then projected on the image sensor, shape
At the visible image of human eye, common digital camera is exactly using this system.It, can not shape since a camera lens is only arranged in it
At panorama shooting effect, even if the angle for increasing camera lens also cannot achieve, the maximum shooting angle of wide-angle lens has surpassed at present
200 degree are crossed, but it is also to be difficult to complete that panoramic picture, which is shot,.
Existing panoramic photographing technique is to use at least two-way image sensing channel, i.e., two camera lenses are staggered relatively,
Then after the image of shooting being overlapped, pan-shot effect is obtained.Due to using two paths, image is different by two respectively
Imaging sensor is presented, and since different imaging sensors can have certain deviation, is even acquired under identical environment
Image also will present error, may result in finally formed panoramic picture in this way and error occurs.
For this purpose, two-way light, by a reflector element, is reflexed to same image by those skilled in the art by improving
On the chip of sensor, so that acquisition image parameter is completely the same, to realize the higher pan-shot effect of quality.Such as patent
A kind of panoramic picture image collection system disclosed in CN204948208U, the technical solution adopted is that, a prism is arranged two
Among symmetrical two groups of fish eye lens components, after the prismatic reflection, light is projected same below prism
On one imaging sensor.Although the technical solution solves the problems, such as that image parameter is consistent, there is also certain deficiencies for it, should
The prism used in technical solution, but its light is directly to be reflected by the minute surface at left and right sides of prism, in order to
It realizes better reflecting effect, reduces optical attenuation, it is necessary to plated film is carried out in specular surface, and not only technique is multiple for plated film on prism
Miscellaneous, cost of manufacture is high, and the problem of will appear damage in use for some time.
Invention content
Technical problem to be solved by the invention is to provide a kind of prisms simple in structure, that manufacturing cost is low to be totally reflected bimirror
The total chip module of head.
Used technical solution to solve above-mentioned technical problem：A kind of prism total reflection twin-lens be total to chip module, packet
Include symmetrical distribution and two groups of lens assemblies of optical axis coincidence, the trigone microscope group that is arranged between two groups of lens assemblies and setting
Imaging sensor below trigone microscope group, the trigone microscope group is since two isosceles right angle prisms are arranged symmetrically composition, and two
The isosceles right angle prism is respectively provided in vertical direction and with lens assembly towards the opposite plane of incidence, and the isosceles are straight
Angle prism has perpendicular and towards the exit facet of imaging sensor with the plane of incidence, and the inclined-plane of the isosceles right angle prism is
Fully reflecting surface.
Preferably, adjacent crest line overlaps in the two isosceles right angle prisms.
Preferably, the lens assembly is fish eye lens.
Preferably, following relationship is met between the sensing face of described image sensor and actual imaging figure：
2R≤{L/2-2*T,W-2T}Min
Wherein, R is imaging radius of graph, and T is the tolerance for allowing adjustment, and W is the width for feeling side, and L is the length for feeling side
Degree.
Preferably, the refractive index of the isosceles right angle prism meets the following conditions：
Wherein, θ is the incidence angle for the plane of incidence that light enters isosceles right angle prism.
Preferably, glass elements are equipped between the trigone microscope group and imaging sensor.
Advantageous effect：This prism total reflection twin-lens is total in chip module, and light enters from two groups of lens assemblies, respectively
After two isosceles right angle prisms are totally reflected, steering is incident upon on the same imaging sensor, is efficiently reduced imaging and is missed
Difference.It reflects moreover, being arranged symmetrically guiding light respectively using two prisms, is carried out at plated film without the working face to prism
Reason, reduces the process costs of product.
Description of the drawings
The present invention is described further with reference to the accompanying drawings and examples；
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of trigone microscope group in the embodiment of the present invention；
Fig. 3 is the schematic diagram of areas imaging on imaging sensor in the embodiment of the present invention；
Fig. 4 is the operation principle schematic diagram of trigone microscope group in the embodiment of the present invention.
Specific implementation mode
Referring to figs. 1 to Fig. 4, a kind of prism total reflection twin-lens of the present invention be total to chip module, including it is symmetrical be distributed and
Two groups of lens assemblies 10 of optical axis coincidence, the trigone microscope group 20 being arranged between two groups of lens assemblies 10 and setting are in trigone microscope group
The imaging sensor 30 of 20 lower sections.
Wherein, trigone microscope group 20 is arranged symmetrically composition, isosceles right angle prism 21 due to two isosceles right angle prisms 21
With the plane of incidence 211, exit facet 212 and fully reflecting surface 213, the plane of incidence 211 and exit facet 212 are mutually perpendicular to, and two isosceles are straight
The plane of incidence 211 of angle prism 21 is in vertical direction and with two lens assemblies 10 in left and right towards opposite, that is, is located at left side
The plane of incidence 211 of isosceles right angle prism 21 is located at the isosceles right angle prism 21 on right side towards the lens assembly 10 in left side
The plane of incidence 211 towards right side lens assembly 10, the exit facets 212 of two isosceles right angle prisms 21 be in same level and
Towards imaging sensor.Light in two groups of lens assemblies 10 after entering, the incidence respectively through respective isosceles right angle prism 21
Face 211 enters, and after being reflected by fully reflecting surface 213, is incident upon on imaging sensor 30 through the injection of exit facet 212.
As shown in figure 3, Fig. 3 is shown on the sensor chip of imaging sensor 30, light passes through two isosceles right angles three
The case where being imaged after prism 21.Because of the fish eye lens used in the present invention, last is imaged as circle, is referred to as imaged
Circle.In order to ensure imaging sensor 30 can be effectively imaged, two required 30 sensor chip sides of range image sensor of molding circle
Edge has tolerance appropriate to be used to adjust.Specifically, meeting between the sensing face and actual imaging figure of imaging sensor 30
Following relationship：
2R=<{ L/2-2*T, W-2T } Min, wherein R is imaging radius of graph, and T is the tolerance for allowing adjustment, and W is sense side
The width in face, L are the length for feeling side.
As shown in figure 4, in order to ensure generating total reflection, the refractive index n of trigone microscope group 20 when light passes through trigone microscope group 20
It must satisfy the following conditions：
Wherein, θ is the incidence angle that light enters the plane of incidence 211.
The present invention utilizes the principle of prism total reflection, light to enter from two groups of lens assemblies, passes through two etc. respectively
After the total reflection of waist right angle prism, steering is incident upon on the same imaging sensor, efficiently reduces image error.Moreover, phase
For the prior art, it is arranged symmetrically guiding light respectively using two prisms and reflects, carried out without the working face to prism
Coating film treatment reduces the process costs of product.
Preferably, being equipped with glass elements 40 between trigone microscope group 20 and imaging sensor 30, glass elements 40 are usually used
In filtering out infrared light, play the role of protecting imaging sensor 30.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, the technical field those of ordinary skill within the scope of knowledge, can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (6)
1. a kind of prism total reflection twin-lens is total to chip module, it is characterised in that：Including symmetrical distribution and optical axis coincidence
Two groups of lens assemblies, the trigone microscope group being arranged between two groups of lens assemblies and the image sensing being arranged below trigone microscope group
Device, since two isosceles right angle prisms are arranged symmetrically composition, the two isosceles right angle prisms have the trigone microscope group respectively
Have in vertical direction and with lens assembly towards the opposite plane of incidence, the isosceles right angle prism has mutually to hang down with the plane of incidence
Directly and towards the exit facet of imaging sensor, the inclined-plane of the isosceles right angle prism is fully reflecting surface.
2. prism total reflection twin-lens according to claim 1 is total to chip module, it is characterised in that：The two isosceles right angles
Adjacent crest line overlaps in prism.
3. prism total reflection twin-lens according to claim 1 is total to chip module, it is characterised in that：The lens assembly is
Fish eye lens.
4. the prism total reflection twin-lens according to claim 1-3 any one is total to chip module, it is characterised in that：It is described
Meet following relationship between the sensing face and actual imaging figure of imaging sensor：
2R≤{L/2-2*T,W-2T}Min
Wherein, R is imaging radius of graph, and T is the tolerance for allowing adjustment, and W is the width for feeling side, and L is the length for feeling side.
5. the prism total reflection twin-lens according to claim 1-3 any one is total to chip module, it is characterised in that：It is described
The refractive index of isosceles right angle prism meets the following conditions：
Wherein, θ is the incidence angle for the plane of incidence that light enters isosceles right angle prism.
6. prism total reflection twin-lens according to claim 1 is total to chip module, it is characterised in that：The trigone microscope group with
Glass elements are equipped between imaging sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263555.3A CN108415216A (en) | 2018-03-27 | 2018-03-27 | A kind of prism total reflection twin-lens is total to chip module |
| PCT/CN2018/091552 WO2019184102A1 (en) | 2018-03-27 | 2018-06-15 | Prism full-reflective double-lens chip-sharing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263555.3A CN108415216A (en) | 2018-03-27 | 2018-03-27 | A kind of prism total reflection twin-lens is total to chip module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108415216A true CN108415216A (en) | 2018-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263555.3A Pending CN108415216A (en) | 2018-03-27 | 2018-03-27 | A kind of prism total reflection twin-lens is total to chip module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108415216A (en) |
| WO (1) | WO2019184102A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141455A (en) * | 2021-04-21 | 2021-07-20 | 广州立景创新科技有限公司 | Method for assembling image acquisition assembly |
| CN113687510A (en) * | 2021-07-19 | 2021-11-23 | 沈阳理工大学 | Light path folding reflection type large-view-field compound eye imaging optical system and method thereof |
| CN114222054A (en) * | 2022-01-14 | 2022-03-22 | 维沃移动通信有限公司 | Camera module and electronic equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115327849B (en) * | 2022-09-05 | 2024-02-06 | 同济人工智能研究院(苏州)有限公司 | Panoramic lens and gas monitoring equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244736Y (en) * | 1995-09-01 | 1997-01-08 | 史本宽 | Stereoscopic camera with double photographic lenses and lens apparatus |
| CN102597823A (en) * | 2009-11-04 | 2012-07-18 | 旭硝子株式会社 | Near infrared cut-off filters |
| CN105120176A (en) * | 2015-09-18 | 2015-12-02 | 成都易瞳科技有限公司 | Panoramic image acquiring system |
| CN204948208U (en) * | 2015-09-18 | 2016-01-06 | 成都易瞳科技有限公司 | Panoramic picture image collection system |
| CN105635720A (en) * | 2016-01-19 | 2016-06-01 | 浙江大学 | Stereo vision camera with double-lens single sensor |
| CN206807614U (en) * | 2017-06-22 | 2017-12-26 | 成都易瞳科技有限公司 | Pisces eye panoramic picture harvester |
-
2018
- 2018-03-27 CN CN201810263555.3A patent/CN108415216A/en active Pending
- 2018-06-15 WO PCT/CN2018/091552 patent/WO2019184102A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244736Y (en) * | 1995-09-01 | 1997-01-08 | 史本宽 | Stereoscopic camera with double photographic lenses and lens apparatus |
| CN102597823A (en) * | 2009-11-04 | 2012-07-18 | 旭硝子株式会社 | Near infrared cut-off filters |
| CN105120176A (en) * | 2015-09-18 | 2015-12-02 | 成都易瞳科技有限公司 | Panoramic image acquiring system |
| CN204948208U (en) * | 2015-09-18 | 2016-01-06 | 成都易瞳科技有限公司 | Panoramic picture image collection system |
| CN105635720A (en) * | 2016-01-19 | 2016-06-01 | 浙江大学 | Stereo vision camera with double-lens single sensor |
| CN206807614U (en) * | 2017-06-22 | 2017-12-26 | 成都易瞳科技有限公司 | Pisces eye panoramic picture harvester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141455A (en) * | 2021-04-21 | 2021-07-20 | 广州立景创新科技有限公司 | Method for assembling image acquisition assembly |
| CN113687510A (en) * | 2021-07-19 | 2021-11-23 | 沈阳理工大学 | Light path folding reflection type large-view-field compound eye imaging optical system and method thereof |
| CN114222054A (en) * | 2022-01-14 | 2022-03-22 | 维沃移动通信有限公司 | Camera module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019184102A1 (en) | 2019-10-03 |
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Application publication date: 20180817 |