CN-122015036-A - Design method, medium, program, electronic terminal and reflective lamp of reflector bus

CN122015036ACN 122015036 ACN122015036 ACN 122015036ACN-122015036-A

Abstract

The application provides a design method, a medium, a program, an electronic terminal and a reflective lamp of a reflector bus, wherein the method comprises the steps of firstly, restraining an irradiation point by using a first equal luminous flux principle, determining the relative position relation of incident light rays based on a second equal luminous flux principle so that the light rays irradiated on a target surface are uniform, then, iteratively solving the position of a reflection point on the reflector bus by setting the position of A 1 and combining the relative position of the incident light rays, and finally, fitting the reflector bus. The design method presets the polarization degree of the light source in advance, namely the position of the illumination section line (relative to the light source), so that the light rays can be wholly deviated towards the direction C0, and the light rays in the direction C180 are obviously reduced. Therefore, when a person travels, light directed to the human eye is greatly reduced, thereby reducing discomfort glare.

Inventors

HE XIAOLIANG
HAN MIN
LIN CONGYI

Assignees

上海三思电子工程有限公司
上海三思科技发展有限公司
嘉善三思光电技术有限公司
浦江三思光电技术有限公司
浙江浦照光电技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250926

Claims (10)

1. The design method of the reflector bus is characterized by comprising the following steps of: Taking n illumination points { B 1 ,B 2 ,...,B n } on an illumination section line L of a target surface based on a first equal luminous flux principle and a preset reflecting surface type, wherein the first equal luminous flux principle comprises that for each segment of line segments on the illumination section line L defined by adjacent illumination points, the luminous fluxes received by the corresponding target surface areas are equal; Determining the position of incident light on the reflector corresponding to each irradiation point according to the preset position A 1 , wherein A 1 is the reflection point nearest to the light source O; The method for determining the position of the incident light comprises determining the incident light according to the position of A 1 and the relative position of the incident light determined based on the second principle of luminous flux And according to the position of (2) Position determination of all other incident rays Wherein { A 1 ,A 2 ,...,A n } is the reflection point of the incident light ray on the reflector bus, and the connection line between each reflection point and the corresponding irradiation point forms the emergent light ray The second principle of equal luminous flux comprises dividing a light intensity distribution domain of a light source O defined by a preset initial beam angle theta into (n-1) basic angular domains with equal luminous flux, generating an incident light ray at the boundary of each basic angular domain to obtain n incident light rays Based on the position of A 1 and the incident light Iterative calculation to obtain the positions of other reflection points, wherein the rule of iterative calculation comprises calculating the tangential vector of A j on the reflector bus according to the position of A j , and combining the tangential vector of A j with the tangential vector of A j As the position of A j+1 , j ε Z n 1, n-1; and performing curve fitting based on the positions and tangential vectors of all reflection points { A 1 ,A 2 ,...,A n } to obtain a reflector bus.
2. The method according to claim 1, wherein the position and length of the illuminance cross-hatching are set based on the relative position of the light sources O, the spacing of the light sources, and the type of the reflecting surface.
3. The method for designing a bus of a reflector according to claim 1, wherein the reflecting surface type includes a mirror surface, a lambertian surface and a mixed surface, the mixed surface is a mixture of the mirror surface and the lambertian surface, and the method for taking n irradiation points { B 1 ,B 2 ,...,B n } on the illuminance section line L according to the reflecting surface type includes: Setting the coordinates of an ith irradiation point as (l i -h), wherein the ith irradiation point is the ith irradiation point on the illumination profile line when the light sources are sequenced from the near to the far based on the projection point O' of the light sources on the illumination profile line; s is the distance from the projection point of the light source on the illuminance section line to the nearest end point B n on the illuminance section line, L is the length of the illuminance section line, and When the reflective surface type is a mirror surface, k i =1; when the reflective surface type is lambertian, k i ＝a 1 ×i+a 2 , or Wherein a 1 、a 2 、b 1 、b 2 and b 3 are constants; When the type of reflecting surface is a mixed surface, Wherein c 1 、c 2 and c 3 are constants.
4. The method for designing a bus bar of a reflector according to claim 1, wherein the method for calculating the tangential vector of A j on the bus bar of the reflector according to the position of A j comprises calculating the normal vector of A j on the bus bar of the reflector according to the position of A j and the position of B j on the reflected light according to the position of A j based on the law of reflection, and calculating the tangential vector corresponding to the point according to the normal vector.
5. The method for designing a reflector bus according to claim 1, wherein the value of n meets a convergence criterion, the convergence criterion comprises calculating and fitting an initial reflector bus according to the value of n, calculating and fitting a reflector bus for inspection by using 2n instead of n, and if the difference between the initial reflector bus and the reflector bus for inspection is smaller than a preset range, determining that the value of n meets the convergence criterion.
6. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1-5.
7. A computer program product comprising computer program code embodied therein, which when run on a computer causes the computer to implement the method of any of claims 1-5.
8. An electronic terminal comprising a memory, a processor and a computer program stored on the memory, characterized in that the processor executes the computer program to implement the method of any of claims 1-5.
9. A reflective luminaire, comprising: A light source; The light source is arranged in the reflector, wherein the bus of the reflector is designed according to the method of any one of claims 1-5, and the axial width of the reflector is matched with the size of the light source.
10. The reflective light fixture of claim 9 wherein the light fixture comprises a plurality of light source-reflector modules, wherein each light source-reflector module is connected in a side-by-side and/or end-to-end relationship.

Description

Design method, medium, program, electronic terminal and reflective lamp of reflector bus Technical Field The application relates to the field of lamps, in particular to a design method, medium, program, electronic terminal and reflective lamp for a reflector bus. Background Under the low headroom scene of space limitation, because the installation height is close with the eye sight height, conventional lighting lamps and lanterns extremely easily cause the glare problem. Specifically: For the transmission type lamp, as the luminous surface of the light source directly leaks, a person can directly see the luminous surface with high brightness and granular light spots with uneven brightness inside through the lens, so that strong incapacitation glare is caused; (II) for the conventional reflective lamps, as shown in FIG. 8, although the light emitting surface of the light source is hidden, the design tends to focus only on the lateral light distribution in the direction C90/270, but neglects the strict constraint on the light rays in the travelling direction of the person C0/C180 (especially in the direction C180), so that a large amount of ineffective light is directly emitted to human eyes, and uncomfortable glare is caused. Particularly in low clearance roads, a large amount of backward scattered light of the lamp can cause uncomfortable glare for a driver at the rear, and the driving safety is endangered to a certain extent. Disclosure of Invention In view of the above-mentioned drawbacks of the prior art, an object of the present application is to provide a method, medium, program, electronic terminal and reflective lamp for designing a reflector busbar, so as to solve the above-mentioned problems. To achieve the above and other related objects, a first aspect of the present application provides a method for designing a reflector busbar, comprising taking n illumination points { B 1,B2,...,Bn } on an illumination section line L of a target surface based on a first equal luminous flux principle and a preset reflection surface type, wherein the first equal luminous flux principle comprises that for each segment of the illumination section line L defined by adjacent illumination points, the luminous fluxes received by the corresponding target surface area are equal, determining the position of an incident light ray on the reflector corresponding to each illumination point according to the preset position of a 1, wherein a 1 is a reflection point nearest to a light source O, and the method for determining the position of the incident light ray comprises determining the position of a 1 according to the position of the incident light ray and the relative position of the incident light ray determined based on the second equal luminous flux principleAnd according to the position of (2)Position determination of all other incident raysWherein { A 1,A2,...,An } is the reflection point of the incident light ray on the reflector bus, and the connection line between each reflection point and the corresponding irradiation point forms the emergent light rayThe second principle of equal luminous flux comprises dividing a light intensity distribution domain of a light source O defined by a preset initial beam angle theta into (n-1) basic angular domains with equal luminous flux, generating an incident light ray at the boundary of each basic angular domain to obtain n incident light raysBased on the position of A 1 and the incident lightIterative calculation to obtain the positions of other reflection points, wherein the rule of iterative calculation comprises calculating the tangential vector of A j on the reflector bus according to the position of A j, and combining the tangential vector of A j with the tangential vector of A jAnd performing curve fitting based on the positions of all reflection points { A 1,A2,...,An } and tangential vectors to obtain a reflector busbar. In an embodiment of the first aspect of the present application, the position and length of the illuminance section line are set based on the relative position of the light sources O, the spacing of the light sources, and the type of reflecting surface. In an embodiment of the first aspect of the present application, the reflection surface type includes a mirror surface, a lambertian surface and a mixed surface, wherein the mixed surface is a mirror surface mixed with the lambertian surface, and the method for taking n irradiation points { B 1,B2,...,Bn } on the illuminance section line L according to the reflection surface type includes setting coordinates of an ith irradiation point as (L i, -h), where the ith irradiation point refers to an ith irradiation point on the illuminance section line when the light sources are ordered from the near to the far based on a projection point O' on the illuminance section line; s is the distance of the projection point of the light source on the illuminance profile from the nearest end point B n on the illuminance