CN-116428544-B - External rearview mirror welcome lamp optical system, mechanical packaging assembly, power supply control system and imaging control method

CN116428544BCN 116428544 BCN116428544 BCN 116428544BCN-116428544-B

Abstract

The invention discloses an external rearview mirror welcome lamp optical system, a mechanical packaging assembly, a power supply control system and an imaging control method, wherein the welcome lamp has a larger imaging area, the radius of the largest imaging area on the ground is 1.192m, the F number of a lens of the system is 2.0, the angle of view is 50 degrees, the field curvature value is less than 0.08mm, the full view field at the 1/2 Nyquist frequency is 0.7, the system performance is excellent, the external rearview mirror welcome lamp system does not adopt the traditional film design, but adopts a higher-level DMD chip system, the system can be directly connected to a vehicle-mounted computer, and a user can directly select a target picture on the vehicle-mounted computer, thereby being convenient and quick. The welcome lamp system is designed on the outer rearview mirror, the problems that an imaging area is limited and the service life is short when the traditional welcome lamp is installed at the position of a vehicle door can be solved, and the imaging effect can be ensured to be more ideal by adjusting the light intensity of the LED lamp.

Inventors

CHEN JIAHUAN
ZHOU ZHIQIANG
CONG JIAWEI
DU XINYU
GUAN ZIQIANG
Lai Lingwei
Bi Zehua
REN JUNCHI

Assignees

江苏大学

Dates

Publication Date: 20260512
Application Date: 20230421

Claims (9)

1. An outside rear-view mirror welcome lamp optical system is characterized by comprising an illumination lens and an imaging lens; the illumination lens comprises a first lens, a second lens, a third lens and a first aperture diaphragm; the imaging lens comprises a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, a second aperture stop, an eleventh lens, a twelfth lens, a thirteenth lens, a fourteenth lens, a fifteenth lens and a sixteenth lens; The first lens is a lunar convex lens, the second lens is a lunar concave lens, the third lens is a lunar concave lens, the fourth lens is a lunar concave lens, the fifth lens is a biconvex lens, the sixth lens is a biconcave lens, the seventh lens is a biconvex lens, the eighth lens is a plano-convex lens, the ninth lens is a plano-concave lens, the tenth lens is a biconvex lens, the eleventh lens is a lunar concave lens, the twelfth lens is a biconvex lens, the thirteenth lens is a biconcave lens, the fourteenth lens is a lunar concave lens, the fifteenth lens is a lunar concave lens, and the sixteenth lens is a lunar concave lens; the object side surface of the first lens has a radius of curvature The first lens has an image side radius of curvature The following relation is satisfied: ; the object side surface curvature radius of the second lens The second lens has an image side radius of curvature The following relation is satisfied: ; The third lens has an object-side surface radius of curvature The third lens has an image side radius of curvature The following relation is satisfied: ; the object side surface curvature radius of the fourth lens The image side surface curvature radius of the fourth lens The following relation is satisfied: ; The object side surface curvature radius of the fifth lens The fifth lens has an image-side surface radius of curvature The following relation is satisfied: ; the object side surface curvature radius of the sixth lens The image side surface curvature radius of the sixth lens The following relation is satisfied: object-side radius of curvature of the seventh lens The seventh lens has an image-side radius of curvature The following relation is satisfied: The object side surface curvature radius of the eighth lens The eighth lens has an image-side radius of curvature The following relation is satisfied: The object side surface curvature radius of the ninth lens The ninth lens has an image-side radius of curvature The following relation is satisfied: radius of curvature of object side of the tenth lens The tenth lens has an image side radius of curvature The following relation is satisfied: Object-side radius of curvature of the eleventh lens The eleventh lens has an image-side radius of curvature The following relation is satisfied: Object-side radius of curvature of the twelfth lens The twelfth lens has an image-side surface radius of curvature The following relation is satisfied: 0.2 object-side radius of curvature of the thirteenth lens The thirteenth lens has an image-side radius of curvature The following relation is satisfied: object-side radius of curvature of the fourteenth lens The fourteenth lens has an image-side radius of curvature The following relation is satisfied: object-side radius of curvature of the fifteenth lens The fifteenth lens has an image side radius of curvature The following relation is satisfied: Object-side radius of curvature of the sixteenth lens The sixteenth lens has an image-side radius of curvature The following relation is satisfied: 。
2. the exterior rear view mirror welcome lamp optical system of claim 1, wherein the focal length of each lens is: The focal length of the first lens is The focal length of the second lens is The focal length of the third lens is The focal length of the fourth lens is The focal length of the fifth lens is The focal length of the sixth lens is The focal length of the seventh lens is The focal length of the eighth lens is The focal length of the ninth lens is The tenth lens has a focal length of The eleventh lens has a focal length of The twelfth lens has a focal length of The thirteenth lens has a focal length of The fourteenth lens has a focal length of The fifteenth lens has a focal length of The sixteenth lens has a focal length of 。
3. An exterior rear view mirror welcome lamp optical system as claimed in claim 1, wherein the center thickness of each lens is: center thickness of first lens Center thickness of the second lens Center thickness of third lens Center thickness of fourth lens Center thickness of fifth lens Center thickness of sixth lens Center thickness of seventh lens Center thickness of eighth lens Center thickness of ninth lens Center thickness of tenth lens Center thickness of eleventh lens Center thickness of twelfth lens Center thickness of thirteenth lens Center thickness of fourteenth lens Center thickness of fifteenth lens Center thickness of sixteenth lens 。
4. An exterior rear view mirror welcome lamp optical system as claimed in claim 1, wherein the refractive index and the abbe number of each lens are: Refractive index of first lens Coefficient of dispersion ; Refractive index of the second lens Coefficient of dispersion ; Refractive index of third lens Coefficient of dispersion ; Refractive index of fourth lens Coefficient of dispersion ; Refractive index of fifth lens Coefficient of dispersion ; Refractive index of the sixth lens Coefficient of dispersion ; Refractive index of seventh lens Coefficient of dispersion ; Refractive index of eighth lens Coefficient of dispersion ; Refractive index of ninth lens Coefficient of dispersion ; Refractive index of tenth lens Coefficient of dispersion ; Refractive index of eleventh lens Coefficient of dispersion ; Refractive index of twelfth lens Coefficient of dispersion ; Refractive index of thirteenth lens Coefficient of dispersion ; Refractive index of fourteenth lens Coefficient of dispersion ; Refractive index of fifteenth lens Coefficient of dispersion ; Refractive index of sixteenth lens Coefficient of dispersion 。
5. An exterior rear view mirror welcome lamp optical system as claimed in claim 1, wherein the material of each lens is: The glass material of the first lens is HZBAF, the glass material of the second lens is QF50, the glass material of the third lens is HLAF L, the glass material of the fourth lens is DZF10, the glass material of the fifth lens is HLAK L, the glass material of the sixth lens is ZF50, the glass material of the seventh lens is HLAK L, the glass material of the eighth lens is HZK10L, the glass material of the ninth lens is ZF11, the glass material of the tenth lens is HLAF A, the glass material of the eleventh lens is HKF6, the glass material of the twelfth lens is DLAF79, the glass material of the thirteenth lens is HQK L, the glass material of the fourteenth lens is HK5, the glass material of the fifteenth lens is HQK L, and the glass material of the sixteenth lens is HQK L.
6. The outside rear-view mirror welcome lamp optical system as claimed in claim 1, wherein the first aperture stop is arbitrarily adjustable in size in a range of To the point of The size of the second aperture stop is fixed, the size is as follows 。
7. A mechanical package assembly for an optical system of an exterior rear view mirror welcome lamp as claimed in any one of claims 1 to 6, wherein an aluminum alloy is used as a housing of a lens barrel, an aluminum alloy spacer is used for fixing lenses in the housing, two ends of the lens barrel are fixed by glue, the whole lens group is fixed in the lens barrel, and the relative positions between the lenses are as follows: the distance between the first lens sheet and the second lens sheet is The distance between the second lens sheet and the third lens sheet is The distance between the third lens sheet and the fourth lens sheet is The distance between the fourth lens sheet and the fifth lens sheet is The distance between the fifth lens sheet and the sixth lens sheet is The distance between the sixth lens sheet and the seventh lens sheet is The distance between the seventh lens sheet and the eighth lens sheet is The distance between the eighth lens sheet and the ninth lens sheet is The distance between the ninth lens sheet and the tenth lens sheet is The distance between the tenth lens sheet and the eleventh lens sheet is The distance between the eleventh lens sheet and the twelfth lens sheet is The distance between the twelfth lens sheet and the thirteenth lens sheet is The distance between the thirteenth lens sheet and the fourteenth lens sheet is The distance between the fourteenth lens sheet and the fifteenth lens sheet is The distance between the fifteenth lens sheet and the sixteenth lens sheet is 。
8. A power supply control system for an outside rear-view mirror welcome lamp optical system as claimed in any one of claims 1-6 is characterized by comprising an LED lamp driving circuit, a DMD chip and an image generator, wherein the LED driving circuit is composed of a Flyback circuit and an auxiliary circuit, and the Flyback circuit is composed of a rectifier bridge B and an input filter capacitor The power factor correction circuit comprises a primary diode D1, transformers T, MOS, Q1 and Q2, a secondary diode D4, an output filter capacitor C0 and an LED load, and is used for realizing PFC function and constant current output, and an auxiliary circuit comprises an auxiliary energy storage capacitor The MOS transistors Q1 and Q2 and the auxiliary diodes D2 and D3 are used for balancing the pulsation power difference of instantaneous input power and output power; The image generator receives the data electric signals and generates corresponding image information, the image generator transmits the image information to the LED lamp driving circuit, the LED lamp driving circuit converts the image electric signals into optical signals, the optical signals are sent out through the LED lamps, and the optical signals are imaged on the DMD chip.
9. An imaging control method of an outside rear view mirror welcome lamp based on a power control system as claimed in claim 8 is characterized in that an LED power switch is turned on in the power control system, light is emitted by the LED lamp, the light sequentially passes through an illumination lens, a DMD chip and an imaging lens, an image on the DMD chip is imaged on the ground with the distance of 1m, when the projection area needs to be adjusted, the size of a first aperture diaphragm is adjusted, meanwhile, the size of the image on the DMD chip is matched on a vehicle-mounted computer, the projection area of the image can be changed, and when the imaging effect needs to be adjusted, the illumination intensity of the LED lamp is adjusted, and different imaging effects can be obtained.

Description

External rearview mirror welcome lamp optical system, mechanical packaging assembly, power supply control system and imaging control method Technical Field The invention relates to the technical field of automobile lamps, in particular to an external rearview mirror welcome lamp optical system, a mechanical packaging assembly, a power supply control system and an imaging control method. Background In recent years, with the development of intelligent automobiles, some automobile manufacturers have come to design a welcome lamp as an interactive device, for example, by installing sensors and electronic devices, so that the welcome lamp can identify an automobile owner and display welcome information. In addition, some automobile manufacturers begin to design welcome lamps as a means of brand promotion as a unique visual element to attract the eyes of consumers and improve the brand value of the products. The automobile welcome lamp is a novel green light source for the automobile and has wide market prospect. The welcome lamp can project text patterns or other patterns, and the design is novel and unique, so that the welcome lamp is popular for a plurality of people. The automobile welcome lamp not only can illuminate the ground, but also has the function of improving the grade of the automobile, so that the automobile looks higher. Most of the welcome lamp designs in the market adopt a combined design of a light source, a lens and a film. The film is a film commonly used, the action principle of the film is equal to that of a photographic film, and when the film is irradiated by a light source, a pattern can be projected. The traditional welcome lamp can only project a single picture and cannot meet the personalized requirements of users. In recent years, new structural designs are presented, so that a film can rotate along with a mechanical structure, and then a plurality of pictures can be transmitted, but the structural designs are too complex, the number of pictures is limited, and the requirements of customers cannot be perfectly met. Conventional greeting lamps are typically mounted in the door and when the door is opened, the greeting lamp at the bottom of the door automatically lights up to illuminate the area beside the door. However, since water is easily introduced into the bottom of the door, this tends to affect the normal use of the door welcome lamp, shortening its life. Some vehicles directly install a door welcome lamp at the bottom of a rearview mirror, and the distance between the rearview mirror and the ground is generally 1m, so that illumination brightness cannot be ensured, and the illumination effect is not ideal. In addition, the outside rear-view mirror welcome lamp has the defect of small imaging area, and can not meet the demands of people. Disclosure of Invention The invention provides an outside rear-view mirror welcome lamp system which is used for solving the problems of smaller illumination area, single pattern selectivity, insufficient imaging brightness and short service life of the outside rear-view mirror welcome lamp in the prior art. In order to achieve the above object, there is provided a rear view mirror welcome lamp system including: A power control system, an optical system lens assembly, and a mechanical package assembly. Wherein the method comprises the steps of The power supply control system comprises an LED lamp driving circuit, a DMD chip and an image generation system. An optical system lens assembly includes an illumination lens and an imaging lens. The illumination lens includes: A first lens, a second lens and a third lens, a first aperture stop. The imaging lens includes: Fourth, fifth, sixth, seventh, eighth, ninth, tenth, second aperture stop, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth lenses. Wherein, the size of the first aperture diaphragm can be adjusted at will, and the adjusting range is thatTo the point of. The second aperture diaphragm is fixed in size。 Mechanical package assembly, using 6063 aluminum alloy as package housing, as shown in fig. 1, the relative position between each lens is determined by using 6063 aluminum alloy spacer ring, and the relative position between each lens is: ensuring that the distance between the first lens and the second lens is The distance between the second lens and the third lens isThe distance between the third lens and the fourth lens isThe distance between the fourth lens and the fifth lens isThe distance between the fifth lens and the sixth lens isThe distance between the sixth lens and the seventh lens isThe distance between the seventh lens and the eighth lens isThe distance between the eighth lens and the ninth lens isThe distance between the ninth lens and the tenth lens isThe distance between the tenth lens and the eleventh lens isThe distance between the eleventh lens and the twelfth lens isThe distance between the twelfth lens and the thirteenth lens isThe distance between the t