CN113390060A - Car light optical system of integrated camera - Google Patents
Car light optical system of integrated camera Download PDFInfo
- Publication number
- CN113390060A CN113390060A CN202110555647.0A CN202110555647A CN113390060A CN 113390060 A CN113390060 A CN 113390060A CN 202110555647 A CN202110555647 A CN 202110555647A CN 113390060 A CN113390060 A CN 113390060A
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- China
- Prior art keywords
- light
- infrared
- module
- car
- car lamp
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/10—Protection of lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
Abstract
The invention provides a camera-integrated car lamp optical system, which comprises a film-coated reflector, a car lamp module and an infrared camera module, wherein an included angle is formed between an optical axis of the car lamp module and an optical axis of the infrared camera module, and the car lamp module and the infrared camera module are respectively positioned at two sides of the film-coated reflector; the coating reflector comprises a light-transmitting carrier, a light-adjusting film for dispersing infrared light and visible light covers on the surface of one side of the light-transmitting carrier, a visible light path passing through the light-adjusting film passes through the car lamp module, and an infrared light path passing through the light-adjusting film passes through the infrared camera module. The invention can simultaneously obtain the functions of infrared imaging and illumination at the same position of the automobile, has simple and compact integral structure and small limited condition of automobile layout design; during daytime driving, the infrared light that has stronger heating effect can be modulated to the region of infrared camera module, can effectively reduce the risk that car light module is damaged by the burning.
Description
Technical Field
The invention relates to a car lamp lens system, and particularly discloses a car lamp optical system integrated with a camera.
Background
The vehicle lamp generally refers to a vehicle headlight, which is disposed in front of a vehicle body and used for illuminating a road ahead for a driver in a dark environment to ensure driving safety.
In the application of intelligent pixel headlamps, generally, an imaging lens is needed to project light energy emitted by a light source onto a road surface, under certain special angles, sunlight can directly enter the interior of an automotive lamp, the imaging lens in the automotive lamp can focus sunlight onto the light source, the service life of the automotive lamp can be seriously influenced if the light source is burnt by the sunlight, and even the light source can be directly disabled.
For the security that improves the driving at night, some cars can additionally set up infrared camera and acquire the road information in car the place ahead, but this kind of structure needs to occupy the extra space of car, and the restriction of car layout design is big.
Disclosure of Invention
Based on this, it is necessary to provide a car light optical system of integrated camera to the prior art problem, can effectively reduce the risk that car light module is damaged by the burning, and possesses the function of illumination and infrared formation of image simultaneously, and overall structure is brief compact.
In order to solve the problems of the prior art, the invention discloses a camera-integrated car lamp optical system which comprises a film-coated reflector, a car lamp module and an infrared camera module, wherein an included angle is formed between an optical axis of the car lamp module and an optical axis of the infrared camera module, and the car lamp module and the infrared camera module are respectively positioned on two sides of the film-coated reflector;
the coating reflector comprises a light-transmitting carrier, a light-adjusting film for dispersing infrared light and visible light covers on the surface of one side of the light-transmitting carrier, a visible light path passing through the light-adjusting film passes through the car lamp module, and an infrared light path passing through the light-adjusting film passes through the infrared camera module.
Further, the optical axis of car light module and the optical axis of infrared camera module are perpendicular, become 45 degrees contained angles between the optical axis of car light module and the printing opacity supporting body.
Furthermore, the light-transmitting carrier is a meniscus lens with the center far away from the car lamp module, and the light adjusting film is a visible light reflecting dielectric film with infrared light transmission.
Furthermore, the reflection waveband of the light modulation film is 380-780 nm.
Furthermore, the light-transmitting carrier is an optical lens, and the light adjusting film is an infrared reflecting film.
Furthermore, the reflection waveband of the light adjusting film is a region with the wavelength of more than 780 nm.
Furthermore, the car light module includes light source and car light lens, and car light lens is located the light source and is close to one side of coating reflector.
Furthermore, the infrared camera module comprises an infrared photosensitive chip and an optical filter, wherein the optical filter is positioned on one side of the infrared photosensitive chip close to the film coating reflector.
The invention has the beneficial effects that: the invention discloses a camera-integrated car lamp optical system, which designs an infrared camera module to be organically combined with a car lamp module, can simultaneously obtain infrared imaging and lighting functions by arranging the car lamp optical system at the same position of a car, and has simple and compact integral structure and small restricted condition of car layout design; during daytime driving, sunlight can be separated into visible light and infrared light after reaching the coated reflector, and the infrared light that has stronger heating effect can be modulated to the region of infrared camera module, can effectively reduce the risk that car light module is damaged by the burning.
Drawings
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an optical path structure according to an embodiment of the present invention.
Fig. 3 is another schematic diagram of an optical path structure according to an embodiment of the invention.
Fig. 4 is a reflection spectrum of a light adjusting film according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of another embodiment of the present invention.
Fig. 6 is a schematic diagram of an optical path structure according to another embodiment of the present invention.
Fig. 7 is a reflection spectrum of a light adjusting film according to another embodiment of the present invention.
The reference signs are: the device comprises a film-coated reflector 10, a light-transmitting carrier 11, a light adjusting film 12, a car lamp module 20, a light source 21, a car lamp lens 22 and an infrared camera module 30.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Refer to fig. 1 to 7.
The embodiment of the invention discloses a camera-integrated car lamp optical system, which comprises a coated reflector 10, a car lamp module 20 and an infrared camera module 30, wherein an included angle is formed between an optical axis of the car lamp module 20 and an optical axis of the infrared camera module 30, the car lamp module 20 and the infrared camera module 30 are respectively positioned at two sides of the coated reflector 10, namely the car lamp module 20 and the infrared camera module 30 are respectively positioned at a light transmitting side and a light reflecting side of the coated reflector 10, or the infrared camera module 30 and the car lamp module 20 are respectively positioned at the light transmitting side and the light reflecting side of the coated reflector 10, preferably, a crossing point between the optical axis of the car lamp module 20 and the optical axis of the infrared camera module 30 is positioned on the coated reflector 10;
the coating reflector 10 includes the printing opacity supporting body 11, and one side surface covering of printing opacity supporting body 11 has the membrane 12 of adjusting luminance that can carry out the beam split to infrared light and visible light, and the visible light path through membrane 12 of adjusting luminance passes car light module 20, and the infrared camera module 30 is passed through the infrared light path of membrane 12 of adjusting luminance, is formed with the contained angle between the optical axis of membrane 12 of adjusting luminance and car light module 20, is formed with the contained angle between the optical axis of membrane 12 of adjusting luminance and infrared camera module 30.
The optical system for a vehicle lamp of the present invention is generally applied to a vehicle headlamp, and preferably, the light adjusting film 12 is located on the side of the light transmitting carrier 11 close to the outside of the vehicle. In an environment with sufficient light in the daytime, the light path diagram is as shown in fig. 2, sunlight from the outside of the vehicle irradiates a coated reflector 10 of an optical system of the vehicle lamp, the coated reflector 10 separates the sunlight into visible light and infrared light, the infrared light is modulated into an infrared camera module 30 by the coated reflector 10, and the visible light is modulated to the area of the vehicle lamp module 20, because the infrared light mainly forming a heating effect is modulated to the infrared camera module 30 by the coated reflector 10, the solar heat radiation focused to the vehicle lamp module 20 can be effectively reduced, thereby the vehicle lamp module 20 can be effectively prevented from being burnt and damaged, namely, the solar load of the vehicle lamp module 20 can be effectively reduced, in addition, because the caliber of the infrared camera module 30 is smaller than that of the optical system of the vehicle lamp, the solar heat radiation amount reaching the infrared camera module 30 through the coated reflector 10 is also limited, therefore, the risk of burning the infrared camera module 30 by solar heat radiation is also small; the article more than absolute zero degree all can radiant energy, the heat that the article of different temperatures gived off is different, in the environment that light is not enough at night, the light path picture is shown in fig. 3 or fig. 6, when needing the illumination, car lamp module 20 sends visible light and throws on the road surface behind coating film reflector 10, because the human body, the animal, the vehicle in the process of traveling all can give off more energy to the heat source, can produce the infrared light, these infrared light can reach infrared camera module 30 behind coating film reflector 10, infrared camera module 30 can obtain the infrared light of catching the production of multiple heat source outside the car and convert into visual image, the target that is difficult to see clearly at night can both form corresponding visual image through infrared camera module 30, can provide reliable night vision auxiliary function for the driver, can effectively improve the security of driving at night.
According to the invention, the infrared camera module 30 and the car lamp module 20 are organically combined, the night vision imaging and lighting functions are realized, the focusing and burning risk of solar energy on the car lamp module 20 can be reduced, the overall structure is simple and compact, and the functional modularization and the application integration can be realized.
In this embodiment, the optical axis of the car light module 20 is perpendicular to the optical axis of the infrared camera module 30, a 45 degree included angle is formed between the optical axis of the car light module 20 and the light-transmitting carrier 11, and a 45 degree included angle is also formed between the optical axis of the infrared camera module 30 and the light-transmitting carrier 11.
In this embodiment, as shown in fig. 1-3, the light-transmitting carrier 11 is a meniscus lens whose center is far away from the bending of the car lamp module 20, the light-transmitting carrier 11 can be made of glass or resin through which infrared light passes, the dimming film 12 is a visible light reflective dielectric film through which infrared light passes, the car lamp module 20 is located on the reflective light path of the film coating reflector 10, the infrared camera module 30 is located on the transmissive light path of the film coating reflector 10, the bending light-transmitting carrier 11 cooperates with the dimming film 12 on the surface thereof, not only can the separation of visible light and infrared light be realized, but also certain convergence effect can be formed after the light emitted by the car lamp module 20 passes through the film coating reflector 10, the illumination brightness can be effectively improved, and the energy utilization rate is high.
Based on the above embodiment, the reflection band of the light modulation film 12 is 380-780nm, the typical visible light spectrum is 380-780nm, the wavelength of infrared light radiated to the periphery by a human body is 9-13 μm, and the ideal reflection spectrum of the light modulation film 12 is shown in fig. 4.
In this embodiment, as shown in fig. 5 and 6, the light-transmitting carrier 11 is an optical lens, the light-transmitting carrier 11 can be made of common optical glass or optical resin, the light-adjusting film 12 is an infrared reflective film, the infrared reflective film can transmit visible light, and can reflect infrared light, the car lamp module 20 is located on the light-transmitting path of the coated reflector 10, the infrared camera module 30 is located on the light-reflecting path of the coated reflector 10, the light-transmitting carrier 11 can be the lens closest to the environment outside the car in the car lamp module 20, preferably, the light-transmitting carrier 11 is a convex lens, light emitted by the car lamp module 20 can obtain a certain convergence effect after passing through the convex lens, the brightness of illumination can be effectively improved, and the energy utilization rate is high.
Based on the above embodiment, the reflection band of the light adjusting film 12 is a region with a wavelength greater than 780nm, the typical visible light spectrum is 380-780nm, and the wavelength of infrared light radiated by human body to the periphery is 9-13 μm, at this time, the ideal reflection spectrum of the light adjusting film 12 is as shown in fig. 7.
In the present embodiment, the lamp module 20 includes a light source 21 and a lamp lens 22, the light source 21 is generally a light emitting chip, the lamp lens 22 is located on one side of the light source 21 close to the coated reflector 10, light emitted from the light source 21 is modulated by the lamp lens 22 and then is projected to a road surface through the coated reflector 10, and the lamp lens 22 may be a single lens or a lens group; or the lamp module 20 may be a single light source 21.
In this embodiment, the infrared camera module 30 includes an infrared photosensitive chip and an optical filter, the optical filter is located at one side of the infrared photosensitive chip close to the coating reflector 10, the longer useless light of wavelength before the photosensitive chip can be effectively filtered through the optical filter, and when the vehicle travels in the daytime, the risk that the photosensitive chip is burned by the heat radiation of the sun can be further reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The camera-integrated car lamp optical system is characterized by comprising a coated reflector (10), a car lamp module (20) and an infrared camera module (30), wherein an included angle is formed between an optical axis of the car lamp module (20) and an optical axis of the infrared camera module (30), and the car lamp module (20) and the infrared camera module (30) are respectively positioned on two sides of the coated reflector (10);
the coating reflector (10) comprises a light-transmitting bearing body (11), a light adjusting film (12) for splitting infrared light and visible light covers on the surface of one side of the light-transmitting bearing body (11), the visible light path of the light adjusting film (12) passes through the car lamp module (20), and the infrared light path of the light adjusting film (12) passes through the infrared camera module (30).
2. The camera-integrated car lamp optical system according to claim 1, wherein the optical axis of the car lamp module (20) is perpendicular to the optical axis of the infrared camera module (30), and the optical axis of the car lamp module (20) forms a 45-degree included angle with the light-transmitting carrier (11).
3. The optical system of an integrated camera for a vehicle lamp according to claim 1, wherein the light-transmitting carrier (11) is a meniscus lens with a center bending away from the vehicle lamp module (20), and the light-adjusting film (12) is a visible light reflecting dielectric film with infrared light transmission.
4. The optical system of an integrated camera for vehicular lamp according to claim 3, wherein the reflection wavelength band of the light adjusting film (12) is 380-780 nm.
5. The optical system of an integrated camera vehicular lamp according to claim 1, wherein the light-transmitting carrier (11) is an optical lens, and the light-adjusting film (12) is an infrared reflective film.
6. The optical system of an integrated camera vehicular lamp according to claim 5, wherein the reflection wavelength band of the light adjusting film (12) is a region with a wavelength greater than 780 nm.
7. The camera-integrated vehicle lamp optical system according to claim 1, wherein the vehicle lamp module (20) comprises a light source (21) and a vehicle lamp lens (22), and the vehicle lamp lens (22) is located on a side of the light source (21) close to the coated reflector (10).
8. The camera-integrated vehicle lamp optical system according to claim 1, wherein the infrared camera module (30) comprises an infrared sensitive chip and a filter, and the filter is located on one side of the infrared sensitive chip close to the coated reflector (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555647.0A CN113390060A (en) | 2021-05-21 | 2021-05-21 | Car light optical system of integrated camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555647.0A CN113390060A (en) | 2021-05-21 | 2021-05-21 | Car light optical system of integrated camera |
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| Publication Number | Publication Date |
|---|---|
| CN113390060A true CN113390060A (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110555647.0A Pending CN113390060A (en) | 2021-05-21 | 2021-05-21 | Car light optical system of integrated camera |
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| CN (1) | CN113390060A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008735A1 (en) * | 2005-06-30 | 2007-01-11 | Harter Joseph E Jr | Night vision infrared illuminator |
| JP2010262768A (en) * | 2009-04-30 | 2010-11-18 | Koito Mfg Co Ltd | Vehicle lamp |
| EP2642750A2 (en) * | 2012-03-23 | 2013-09-25 | Koito Manufacturing Co., Ltd. | Imaging device and control system having the device |
-
2021
- 2021-05-21 CN CN202110555647.0A patent/CN113390060A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008735A1 (en) * | 2005-06-30 | 2007-01-11 | Harter Joseph E Jr | Night vision infrared illuminator |
| JP2010262768A (en) * | 2009-04-30 | 2010-11-18 | Koito Mfg Co Ltd | Vehicle lamp |
| EP2642750A2 (en) * | 2012-03-23 | 2013-09-25 | Koito Manufacturing Co., Ltd. | Imaging device and control system having the device |
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Application publication date: 20210914 |
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| RJ01 | Rejection of invention patent application after publication |