CN103703406B - Optical Components for Light Sensors - Google Patents

Abstract

The present invention provides an optical assembly, wherein the optical assembly includes a first optical element configured to receive light and alter a transmission path of the light through the first optical element in a first direction and a second direction, and a second optical element in optical communication with the first optical element, the second optical element configured to receive light from the first optical element and alter a transmission path of the light through the second optical element in the first direction and the second direction, wherein the light passes through the second optical element such that the sensor receives light from a field of view that is offset from a field of view of the sensor by about 30 degrees to 60 degrees.

Description

Optical Components for Light Sensors

Cross References to Related Applications

This application claims priority to U.S. Provisional Application No. 61/515,389, filed August 5, 2011, by Richard T. Fish et al., entitled "OPTICAL ASSEMBLY FOR LIGHT SENSOR," the entire disclosure of which is incorporated by reference in this article.

technical field

The present invention relates generally to optical assemblies for light sensors, and more particularly to optical assemblies for light sensors in auto-dimming rearview assemblies.

Contents of the invention

According to an aspect of the present invention, an optical assembly includes a first optical element and a second optical element, the first optical element is configured to receive light and change the intensity of light passing through the first optical element along a first direction and a second direction. a transmission path, the second optical element is in optical communication with the first optical element, the second optical element is configured to receive light from the first optical element, and change the direction of light passing through the second optical element along a first direction and a second direction A transmission path in which light passes through the second optical element such that the sensor receives light from a field of view offset from the sensor's field of view by about 30 degrees to 60 degrees.

According to another embodiment, there is provided a light sensor assembly comprising: a light sensor; a first optical element configured to receive light and change light passing through the first direction along a first direction and a second direction; a light transmission path of the optical element; and a second optical element, the second optical element is in optical communication with the first optical element, the second optical element is configured to receive light from the first optical element, and along the first direction and the second optical element The direction changes the transmission path of the light passing through the second optical element, wherein the light passes through the second optical element, such that the light sensor receives light from a field of view offset from the field of view of the light sensor by about 30 degrees to 60 degrees.

According to another embodiment, there is provided a rear view assembly for a vehicle, the rear view assembly comprising: a housing configured to be mounted on a vehicle; a rear view element disposed in the housing and presenting a vehicle an image of the scene behind; a light sensor assembly disposed in the housing; and a controller for receiving electrical signals from the light sensor and for adjusting the brightness of the image presented by the rear view element. The light sensor assembly includes: a light sensor for outputting an electrical signal representing the intensity of light incident on a light receiving surface of the light sensor; a first optical element configured to receive the light and move along The first direction and the second direction change the transmission path of light passing through the first optical element; and a second optical element, the second optical element is in optical communication with the first optical element, the second optical element is configured to receive light from the first optical element , and change the transmission path of the light passing through the second optical element along the first direction and the second direction, wherein the light is transmitted through the second optical element, so that the light sensor receives a horizontal shift from the field of view of the light sensor Light with a field of view of about 30 degrees to 60 degrees.

These and other features, advantages and objects of the present invention will be further understood and appreciated by those skilled in the art by reference to the following specification, claims and drawings.

Description of drawings

The present invention will be more fully understood from the detailed specification and accompanying drawings, in which:

Figure 1 is a perspective view of a rear sight assembly with an optical assembly according to one embodiment of the present invention;

Figure 2A is a perspective view of a rear vision assembly with an optical assembly according to one embodiment of the present invention;

Figure 2B is a perspective view of an optical assembly in the rearview assembly of Figure 2A;

3 is a partial rear perspective view of an optical assembly in the rearview assembly of FIG. 2A;

Figure 4 is an environmental view of an optical assembly according to one embodiment of the invention;

Figure 5 is a perspective view of an optical assembly according to one embodiment of the present invention;

Figure 6 is a perspective view of a light sensor device that may be used with embodiments of the present invention;

Figure 7 is a cross-sectional view of the light sensor device shown in Figure 6;

Figure 8A is a perspective view of a second optical element of an optical assembly according to one embodiment of the present invention;

Figure 8B is a rear perspective view of the second optical element of Figure 8A;

9 is a diagram illustrating light propagation through a second optical element of an optical assembly according to an embodiment of the present invention;

10 is a diagram illustrating light propagation through a second optical element of an optical assembly according to an embodiment of the present invention;

11A is a perspective view of a first optical element of an optical assembly according to one embodiment of the present invention;

11B is a rear view of the first optical element of FIG. 11A;

Figure 11C is a front view of the first optical element of Figure 11A;

12 is a diagram showing the field of view of a light sensor with a prior art optical assembly;

Figure 13 is a diagram showing the field of view of a light sensor with an optical assembly according to one embodiment of the present invention;

Figure 14 is a perspective view of a rear sight assembly with an optical assembly according to one embodiment of the present invention;

15 is a perspective view of a rear sight assembly with an optical assembly according to another embodiment of the present invention;

16 is a front perspective view of a first optical element of the optical assembly shown in FIG. 15;

Figure 17 is a rear perspective view of the first optical element shown in Figure 16;

18 is a front perspective view of a second optical element of the optical assembly shown in FIG. 15;

Figure 19 is a rear perspective view of the second optical element shown in Figure 16; and

Figure 20 is a block diagram of a rear view assembly according to one embodiment of the present invention.

detailed description

The presently shown embodiments are primarily combinations of method steps and device components related to optical assemblies for light sensors. Accordingly, apparatus components and method steps are indicated, where appropriate, by conventional symbols in the drawings, which show only those specific details that are relevant to the understanding of embodiments of the invention, without the benefit of the present description details that would be apparent to one of ordinary skill in the art would obscure the invention. In addition, the same reference numerals in the specification and drawings denote the same components.

In this document, relative terms (eg, first and second, top and bottom, etc.) are used only to distinguish one entity or action from another, without requiring or implying any relation between these entities or actions. Such actual relationship or order. The terms "comprising", "comprising" or any other variation thereof shall cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also includes elements not expressly listed or such processes. , method, article, or other element inherent in a device. An element following "comprising a" does not, without further constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

Referring to FIGS. 1-3 , a rear view assembly is shown generally at 100 . The rear vision assembly 100 includes a light sensor assembly 101 including an optical assembly generally indicated by reference numeral 102 and a light sensor 108 . 4, FIG. 5, FIG. 9 and FIG. 10, the optical assembly 102 includes a first optical element 104, the first optical element 104 can be configured to receive light and change along the first direction and the second direction through the first optical element. The light transmission path of the element 104. The optical assembly 102 can also include a second optical element 106 in optical communication with the first optical element 104, wherein the second optical element 106 can be configured to receive light from the first optical element 104 and change the light along the first direction and the second direction. The transmission path of light passing through the second optical element 106 . Accordingly, light passing through second optical element 106 may be received by light sensor 108 such that light sensor 108 receives light from a field of view offset from the field of view of light sensor 108 by approximately 30 degrees to 60 degrees. When used in a rear vision assembly, the received field of view may be offset horizontally (particularly from the center of the mirror housing or mount) by approximately 30 to 60 degrees. The optical elements may also be configured such that light sensor 108 receives light from a field of view that is offset from the field of view of light sensor 108 by approximately 40 degrees to 50 degrees. The optical elements may also be configured such that light sensor 108 receives light from a field of view that is offset by about 45 degrees from the field of view of light sensor 108 .

For purposes of illustration and not limitation, in operation, optical assembly 102 is configured for use with rear vision assembly 100 when an auxiliary vehicle component is disposed between rear vision assembly 100 and a windshield of a vehicle. Typically, the light sensor 108 that does not include the optical assembly 102 cannot properly monitor ambient light when an auxiliary vehicle component blocks the field of view of the light sensor 108 . The optical assembly 102 enables the light sensor 108 to be positioned substantially flat on the circuit board 110 ( FIG. 4 ) while receiving light offset from the forward field of view of the light sensor 108 such that the light-resistance caused by ancillary vehicle components Any obstructions have a reduced effect on the light sensor 108 sensing ambient light. Auxiliary vehicle components may be, but are not limited to, rain sensors, imagers, radar systems, sensor covers, compasses, GPS modules, etc., or combinations of the above.

Referring to FIGS. 4 and 8A-11C , according to a first embodiment, optical assembly 102 may be configured to be connected to circuit board 110 such that optical assembly 102 is in optical communication with light sensor 108 , which is also mounted to circuit board 110 . Generally, the first optical element 104 includes a first or front surface optical structure 112 and a second or back surface optical structure 114 . The first surface optical structure 112 can be configured to direct light in a generally vertical direction, and the second surface optical structure 114 can be configured to converge light in a generally horizontal direction (or a direction generally orthogonal to the first surface optical structure 112 ).

According to the embodiment shown in FIGS. 4 , 5 and 11A-11C , the first optical element 104 can be configured in a substantially vertical direction (first surface optical structure 112 ) and a substantially horizontal direction (second surface optical structure 114 ). ) changes the transmission path of the light passing through the first optical element 104 . The second surface optical structure 114 may be configured to receive light within a horizontal field of view of approximately −10 degrees to 90 degrees relative to a 0 degree optical axis extending through the light sensor 108 approximately perpendicular to the circuit board 110 and, more specifically, may be obtained from Approx. -2.5 degrees to 82.5 degrees horizontal field of view receives light. The rear surface 114 can be configured to direct received light into an approximately 40 degree horizontal illumination pattern, and more specifically, within an approximately 34.5 degree horizontal illumination pattern. Typically, first surface optical structures 112 and second surface optical structures 114 have textured surfaces or other types of optical properties such that front surface 112 and rear surface 114, respectively, can receive light within a desired horizontal field of view and transmit light to within the irradiation pattern.

According to the embodiments shown in FIGS. 5 , 8A, 8B, 9 and 10, the second optical element 106 may be configured to alter the intensity of light passing through the second optical element 106 along a substantially horizontal direction and a substantially vertical direction. transfer path. The second optical element 106 may include a first or front surface optical structure 116 and a second or back surface optical structure 118 . The first surface optical structure 116 can be configured to change the transmission path of light in a generally horizontal direction, and the second surface optical structure 118 can be configured to change the light transmission path in a generally vertical direction (or a direction generally orthogonal to the first surface optical structure 116). transmission path, so that the field of view size (or illumination pattern size) of the light transmitted from the first optical element 104 to the second optical element 106 is approximately equal to the field of view size of the light transmitted from the second optical element 106 to the light sensor 108 (or illumination pattern size); however, the transmission angle of the light transmitted between the first optical element 104 and the second optical element 106 is different from the transmission angle of the light transmitted between the second optical element 106 and the light sensor 108 .

The second surface optical structure 118 may be configured to receive light within an approximately -50 degree to 20 degree horizontal field of view relative to a 0 degree optical axis extending through the light sensor 108 approximately perpendicular to the circuit board 110 and, more specifically, may be obtained from Approximately -40° to 10° vertical field of view receives light. The back surface 118 can be configured to direct received light into an approximately 10 degree vertical illumination pattern, and more specifically, within an approximately 3 degree vertical illumination pattern. Typically, front surface 116 and rear surface 118 have textured surfaces or other types of optical properties such that front surface 116 and rear surface 118, respectively, can receive light within a desired horizontal field of view and transmit light into an illumination pattern.

Accordingly, the first optical element 104 is configured to receive light offset from the field of view of the light sensor 108 and to direct the light onto the second optical element 106 . The second optical element 106 is configured to receive light from the first optical element 104 and redirect the light onto the light sensor 108 . Generally, each of first optical element 104 and second optical element 106 directs light in first and second directions that are generally orthogonal to each other (eg, generally horizontal and generally vertical). It should be understood by those skilled in the art that the second optical element 106 can be configured to have an optical characteristic that further gathers the light transmitted therethrough.

Referring to FIGS. 12 and 13 , the field of view of the light sensor 108 utilizing prior art optical components is shown in FIG. 12 . This field of view of the light sensor 108 utilizing prior art optical assemblies is suitable for sensing light to control the auto-dimming rear vision assembly 100 when there is no obstruction between the rear vision assembly 100 and the vehicle windshield.

As shown in FIG. 13 , the field of view of light sensor 108 when detecting light propagating through optical assembly 102 is offset from the origin of the x, y axes as compared to the field of view shown in FIG. 12 . Accordingly, optical assembly 102 and light sensor 108 may have a horizontal field of view of approximately -20 degrees to 85 degrees and a vertical field of view of approximately -50 degrees to 35 degrees. More specifically, optical assembly 102 and light sensor 108 may have a horizontal field of view of about 0 degrees to 77.5 degrees and a vertical field of view of about -30 degrees to 10 degrees when optical assembly 102 is configured to have a flat cone angle, and when optical assembly 102 is configured It has a horizontal field of view of about -10 degrees to 85 degrees and a vertical field of view of -40 degrees to 20 degrees when formed with a cone angle of about 50%.

Thus, when there are no obstructions (eg, auxiliary vehicle components) between the rear vision assembly 100 and the vehicle windshield, the light sensor 108 detecting light from the field of view shown in FIG. 12 is sufficient. When an obstruction exists between the rear vision assembly 100 and the vehicle windshield, the optical assembly 102 can shift the field of view to receive light so that the obstruction does not adversely affect the amount of light detected by the light sensor 108, so that the rear vision Automatic dimming of the assembly 100 can be suitably controlled. Additionally, light sensor 108 is positioned toward the outer edge of circuit board 110 so that light sensor 108 and optical assembly 102 are not directly behind ancillary vehicle components, which may further increase the amount of light received by light sensor 108 .

According to one embodiment, optical assembly 102 may attenuate light propagating therethrough such that the intensity of light received by first surface 112 is greater than the intensity of light received by light sensor 108 . Optical assembly 102 may be configured to reduce attenuation of light propagating therethrough. Additionally, optical assembly 102 may include a diffuser to diffuse received light.

With regard to the rear vision assembly 100, as shown in FIGS. 1, 2A, and 2B, the rear vision assembly may include a housing 120 defining an aperture 122, wherein the optical assembly 102 is configured to receive light therethrough. As shown in FIG. 1 , housing 120 may be configured to control the field of view of optical assembly 102 and light sensor 108 by having one or more concave surfaces 124 . 2A and 2B illustrate alternative embodiments of housing 120 and concave surface 124 .

According to an alternative embodiment, the first and second surface optical structures 112, 114 and 116, 118, respectively, may be switched such that the first surface optical structure 112 redirects light in a generally horizontal direction and the second surface optical structure 114 changes light in a generally vertical direction. To redirect light, the first surface optical structure 116 redirects light in a substantially horizontal direction and the second surface optical structure 118 redirects light in a substantially vertical direction. These optical structures 112, 114, 116, and 118 may include microstructured lenses, diffraction gratings, and the like.

Additionally or alternatively, optical assembly 102 and light sensor 108 may be located on the right side of rear vision assembly 100 such that first optical element 104 and second optical element 106 may be mirrored or rotated, respectively.

The rearview assembly 100 described herein may include an electro-optical mirror element, wherein the reflectivity of the mirror element changes based on light detected by the light sensor 108, and a display device changes based on the light detected by the light sensor 108. strength. Examples of rear view assemblies and/or light sensors are described in U.S. Patent 6,870,656 entitled "ELECTROCHROMIC REARVIEW MIRRORELEMENT INCORPORATING A THIRD SURFACE REFLECTOR", U.S. Patent 3 entitled "MOISTURE DETECTING SYSTEM USINGSEMICONDUCTOR LIGHT SENSOR WITH INTEGRAL 645 CHARGECOLLECTION" 、题为“PHOTODIODE LIGHTSENSOR”的美国专利6,359,274、题为“PHOTODIODE LIGHT SENSOR”的美国专利6,504,142、题为“AUTOMATIC DIMMING MIRROR USINGSEMICONDUCTOR LIGHT SENSOR WITH INTEGRAL CHARGECOLLECTION”的美国专利6,402,328、题为“VEHICLE EQUIPMENTCONTROL WITH SEMICONDUCTOR LIGHT SENSORS" U.S. Patent 6,379,013, U.S. Patent 6,679,608 entitled ""SENSOR DEVICE HAVING AN INTEGRALANAMORPHIC LENS", U.S. Patent 6,831,268 entitled "SENSORCONFIGURATION FOR SUB S TANTIAL SPACING FROM A SMALLAPERTURE" 7,543,946, and 6,742,904, entitled "VEHICLE EQUIPMENT CONTROL WITH SEMICONDUCTOR LIGHTSENSORS," which are hereby incorporated by reference in their entirety.

Examples of light sensors 108 that may be used with embodiments of the present invention are shown in FIGS. 6 and 7 . The light sensor 108 comprises: a support structure, such as a printed circuit board or lead frame 60; an integrated sensing circuit 15 having an active sensing region 57 mounted on the supporting substrate to sense optical radiation, preferably visible light and package body 62, package body 62 encapsulates the sensing circuit on the support structure. Generally, the encapsulation 62 defines a lens structure 20 that includes an integral refractive lens portion 61 preferably having an elliptical refractive surface for focusing incident optical radiation on the active surface 57 of the sensing circuit 15. superior. The lens structure 20 also includes an optical radiation collector portion 53 surrounding the lens portion 61 for collecting and redirecting optical radiation not incident on the lens portion 61 onto the active surface 57 of the sensing circuit 15 . The optical radiation collector portion 53 includes a parabolic reflective surface 54 that redirects incident optical radiation to the sensing circuit 15 by total internal reflection. The optical radiation collector part 53 also includes an annular optical radiation receiving surface 51 lying in a plane perpendicular to the major axis of the elliptical lens part 61 and arranged to surround the elliptical lens part 61 . The encapsulation is preferably formed from a transparent polymer. Additional details of such light sensors can be found in US Patent 6,831,268, entitled "SENSOR CONFIGURATION FOR SUBSTANTIAL SPACING FROM ASMALL APERTURE," the entire disclosure of which is incorporated herein by reference.

Thus, in addition to the two optical elements 104 and 106 of the optical assembly 102, the light sensor 108 is also provided with its own integrated optics. It will be appreciated, however, that other optical sensors may be used, with or without their own integral optics.

According to an embodiment shown in FIG. 14 , a plurality of light sensor assemblies 101A and 101B may be included in the rear view assembly 100 . Additionally, one or more of the plurality of light sensors 108 may be optically coupled to one or more optical assemblies 102, respectively, to form ambient light sensor assemblies 101A and 101B. An example of a rearview assembly having at least two ambient light sensors is described in U.S. Patent Application 13/494,656, filed June 12, 2012, entitled "REARVIEW AS SEMBLY WITH MULTIPLE AMBIENT LIGHTSENSORS," the entire publication of which The contents are hereby incorporated herein by reference. Although the optical assembly 102 is designed to alleviate the problems associated with the field of view obstruction of the ambient light sensor provided in the rear vision assembly 100, the first light sensor assembly 101A and the second light sensor are provided on opposite sides of the mirror mounting structure 130. Assembly 101B will further alleviate the problem of field of view obstruction of a single ambient light sensor assembly caused by components mounted to or near the mirror mounting structure. More specifically, this problem can be addressed by spacing photosensor assemblies 101A and 101B by at least about 10 cm and processing the output signals from the two sensor subassemblies to use the photosensor whose field of view is minimally blocked (i.e., has The output of the light output signal of the sensor) is further resolved.

15-19 illustrate an alternative configuration of the optical assembly 102c. As shown, assembly 102c differs from optical assembly 102 shown in FIGS. 4 and 8A-11C in that second optical element 106c is attached to first optical element 104c rather than to circuit board 110 , so that both optical components can be mounted to the rearview mirror housing 120 instead of one optical component being mounted to the housing 120 and the other optical component being mounted to the circuit board 110 as in the first embodiment. This attachment of the two optical elements 104c and 106c may be by any means. As shown, this is by means of a heat stake. This alternate configuration provides the benefit that the relative physical positioning of the two optical elements remains constant between the different parts.

As shown in FIGS. 15-17 , the first optical element 104 c includes a first surface optical structure 112 and a second surface optical structure 114 as in the first embodiment. The first optical element 104c differs in that it includes a first heat stake 156 and a second heat stake 160, and in that the resilient feet 152 and 154 are configured slightly differently. The resilient feet 152 and 154 are configured to snap into the aperture 122 of the mirror housing 120 . The first optical element 104c also includes shoulders 158a and 158b on opposite sides of the first heat stake 156 , and a shoulder 162 adjacent the second heat stake 160 .

As shown in FIGS. 15 , 18 and 19 , the second optical element 106c includes a first surface optical structure 116 and a second surface optical structure 118 as in the first embodiment. The second optical element 106c differs in that it includes a first heat fusion hole 164 and a second heat fusion hole 166 respectively adapted to receive the first heat fusion post 156 and the second heat fusion post 160 of the first optical element 104c. The second optical element 106 c is also different from the second optical element 106 of the first embodiment in that the second optical element 106 c does not include elastic feet for snapping onto the circuit board 110 . Instead, as described above, the second optical element 106c is fixed to the first optical element 104c, which in turn is mounted to the housing 120. Shoulders 158a, 158b and 162 are provided on first optical element 104c to provide stops for stopping insertion of heat stakes 156 and 160 at specific positions as shown in FIG. 15 such that when second optical element 106c The first and second optical elements will have the desired positional relationship when the front surface of the front surface is in contact with the shoulders 158a, 158b and 162. Heat may then be applied to the ends of heat stakes 156 and 160 to melt the ends, thereby securing second optical element 106c in the desired position.

Figure 20 shows an example of circuitry used in a rearview assembly. The rear vision assembly may include a rear vision element, which may include a reflective element 200 and/or a display device 202 , a forward facing ambient light sensor assembly 101A, a rear facing glare light sensor assembly 204 , and a controller 206 . The reflective element 200 may be an electro-optical element, such as an electrochromic element, having a reflectivity that can be changed in response to an electrical signal. Controller 206 may control the reflectivity of reflective element 200 in response to output signals from ambient light sensor assembly 101A and glare light sensor assembly 204 . In this manner, controller 206 may adjust the brightness of the image presented by the reflection from the reflective element. Controller 206 may also adjust the brightness of the image presented by display device 202 in response to output signals from ambient light sensor assembly 101 and glare light sensor assembly 204 . The rear vision assembly may also include an optional second forward facing ambient light sensor assembly 101B. The controller 206 may process the output signals from the two ambient light sensor assemblies 101A and 101B to use the output of the light sensor whose field of view is least blocked (ie, the sensor having an output signal indicative of a greater amount of received light).

It will be appreciated by those skilled in the art that any dimensions and shapes referenced in the figures are approximate and used for illustration rather than limitation, whereby components may have larger or smaller sizes and/or alternate shapes.

Advantageously, optical assembly 102 and light sensor 108 may be used to detect ambient light by offsetting the field of view so that obstructions in front of sensor 108 do not adversely affect light detection by sensor 108 . Thus, the auto-dimming mirror elements of the rearview assembly 100 may be appropriately controlled by the amount of light detected by the sensor 108 . Those skilled in the art will appreciate that the optics assembly 102, sensor 108, and/or rear vision assembly 100 may have additional or alternative advantages. Those skilled in the art should also understand that the components described herein can be combined in alternative combinations not explicitly described herein.

Modifications of the invention will occur to those skilled in the art and to those who make or use the invention. It is therefore to be understood that the embodiments shown in the drawings and described above are by way of illustration only and are not intended to limit the scope of the invention which is defined by the following claims in accordance with the principles of patent law, including The doctrine of equivalents is used to interpret the claims.

Claims (19)

1. an optical module, described optical module includes:

First optical element, described first optical element configuration becomes to receive light and along a first direction with the Two directions change the transmission path of the light through described first optical element；With

Second optical element, described second optical element and described first optical element optical communication, institute State the second optical element configuration to become to receive from the light of described first optical element, and along described the One direction and described second direction change the transmission path of the light through described second optical element, wherein Light passes described second optical element, so that optical sensor receives regarding since described optical sensor The light of the visual field that field offset is 30 degree to 60 degree.

2. an optical sensor components, described optical sensor components includes:

Optical sensor；

First optical element, described first optical element configuration becomes to receive light and along a first direction with the Two directions change the transmission path of the light through described first optical element；With

Second optical element, described second optical element and described first optical element optical communication, institute State the second optical element configuration to become to receive from the light of described first optical element, and along described the One direction and described second direction change the transmission path of the light through described second optical element, wherein Light passes described second optical element, so that described optical sensor receives since described optical sensor The light of visual field of visual field offset 30 degree to 60 degree.

3., for a rearview assembly for vehicle, described rearview assembly includes:

Shell, described Shell structure becomes for installation on described vehicle；

Rearview element, described rearview element arranges in the housing and presents described rear view of vehicle The image of scene；

Optical sensor components, described optical sensor components is arranged in the housing, described optical sensor Assembly includes:

Optical sensor, described optical sensor is used for exporting the signal of telecommunication, and the described signal of telecommunication represents incident The intensity of the light on the optical receiving surface of described optical sensor；

First optical element, described first optical element configuration becomes to receive light along a first direction With the transmission path that second direction changes the light through described first optical element；With

Second optical element, described second optical element is with described first optical element optics even Logical, described second optical element configuration becomes to receive the light from described first optical element, and The light through described second optical element is changed along described first direction and described second direction Transmission path, wherein light pass described second optical element so that described optical sensor connects Receipts are since the light of the visual field of the visual field horizontal-shift 30 degree to 60 degree of described optical sensor；With Controller, described controller is for receiving the described signal of telecommunication of described optical sensor and for adjusting The brightness of the image that joint is presented by described rearview element.

Assembly the most according to claim 3, wherein, described rearview element include being positioned at described outside Display device in shell, wherein said controller by regulate described display device brightness regulate by The brightness of the image that described rearview element presents.

Assembly the most according to claim 3, wherein, described rearview element includes electro-optic reflective mirror Element, described electro-optic reflective mirror element has the reflectance that can regulate, and wherein said controller passes through Regulate the reflectance of described electro-optic reflective mirror element and regulate the image that presented by described rearview element Brightness.

Assembly the most according to claim 5, wherein, described rearview element include being positioned at described outside Display device in shell, wherein said controller comes by regulating the brightness of described display device further The brightness of the image that regulation is presented by described rearview element.

Assembly the most according to claim 3, also includes the second optical sensor components, wherein said Optical sensor components and described second optical sensor components both relative to described vehicle to moving ahead Sail direction be approximately towards front and be configured to detect ambient light, wherein said second optical sensor components At least 10cm spaced apart with described optical sensor components.

8. according to the assembly according to any one of claim 2 to 7, wherein, described optical sensor bag Include:

Supporting construction；

Sensing element, described sensing element is arranged in described supporting construction with sensing light and in response to this And produce electrical output signal；With

Packaging body, described sensing element is encapsulated in described supporting construction by described packaging body, described envelope Dress body is configured to limit lens component and the optical radiation catcher part around described lens component, institute State lens component for incident illumination being focused on the active surface of described sensing element, described optics spoke Penetrate catcher part for collect do not impinge on the light on described lens component and referred again to On the described active surface of described sensing element.

Assembly the most according to any one of claim 1 to 7, wherein, described first direction is General horizontal direction, so that described first optical element configuration becomes to change along described general horizontal direction Transmission path through the light of described first optical element.

Assembly the most according to any one of claim 1 to 7, wherein, described second direction It is generally vertical direction, so that described second optical element configuration becomes to change along described generally vertical direction Become the transmission path of the light through described second optical element.

11. assemblies according to any one of claim 1 to 7, wherein, described optical sensor Reception is since the light of the visual field of the visual field offset 40 degree to 50 degree of described optical sensor.

12. assemblies according to any one of claim 1 to 7, wherein, described optical sensor Receive the light of the visual field of the next visual field offset about 45 degree since described optical sensor.

13. according to the assembly according to any one of claim 3 to 7, and wherein, described shell includes First hole, and wherein said first optical element configuration one-tenth reception is through the light in described first hole.

14. assemblies according to claim 5, wherein, described electro-optic reflective mirror element is to have The electrochromic mirror element of the reflectance that can regulate, wherein said controller is described by regulation The reflectance of electrochromic mirror element regulates the brightness of the image presented by described rearview element.

15. according to the assembly according to any one of claim 3 to 7, wherein, and described optical sensor It it is the ambient light being approximately towards front sense ambient light relative to the direction that moves forward of described vehicle Sensor.

16. assemblies according to claim 15, also include backward dazzling optical sensor components, institute State backward dazzling optical sensor components and be approximately towards rear relative to the direction that moves forward of described vehicle And detect dazzling light, the signal of telecommunication of the intensity of described dazzling light, wherein said controller is represented with output Receive the signal of telecommunication of described backward dazzling optical sensor components, and in response to from described backward dazzling light The signal of telecommunication that sensor cluster and described ambient light sensor receive regulate by described rearview element in The brightness of existing image.

17. assemblies according to any one of claim 1 to 7, wherein, described first optics In element and described second optical element described each include first surface optical texture and second Surface optical structure, wherein, described first surface optical texture is for changing light in a generally horizontal direction Transmission path, and described second surface optical texture is for changing optical transport road along generally vertical direction Footpath, or, described first surface optical texture is used for changing light transmission path along generally vertical direction, And described second surface optical texture is for changing light transmission path in a generally horizontal direction.

18. according to the assembly according to any one of claim 1 and 2, and wherein, light is through described the Two optical elements, so that described optical sensor receives since the visual field level of described optical sensor is inclined Move the light of the visual field of 30 degree to 60 degree.

19. according to the assembly according to any one of claim 1 and 2, wherein, described first optics Element becomes to be used for be arranged in rearview assembly with an automatic light meter with described second optical element configuration.