CN2610318Y - Post photoelectric scanning plate of testing instrument for vehicle head-light - Google Patents
Post photoelectric scanning plate of testing instrument for vehicle head-light Download PDFInfo
- Publication number
- CN2610318Y CN2610318Y CN 03224102 CN03224102U CN2610318Y CN 2610318 Y CN2610318 Y CN 2610318Y CN 03224102 CN03224102 CN 03224102 CN 03224102 U CN03224102 U CN 03224102U CN 2610318 Y CN2610318 Y CN 2610318Y
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- light
- photo
- rearmounted
- photoelectric
- conversion element
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- Measurement Of Optical Distance (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A tailing photoelectric scanning board of an automobile front light detecting instrument is provided with a tailing photo receiving board (4) which is provided with photoelectric diverting units (3). The utility model is characterized in that the center area of the tailing photo receiving board (4) is provided with a photo receiving scanning area (6) which is formed by the dense arrangement of the photoelectric diverting units (3) on a plane. The utility model has the advantages of simple structure, low cost, low price, being capable of adopting the circuit scanning method to obtain straightforward flare shape and photo distribution pattern, direct photoelectric diversion, improvement in measuring rate, and being capable of measuring distance light and recent light as well.
Description
Technical field
The utility model belongs to a kind of rearmounted light receiving plate that the far and near light of car headlamp is detected automatically.
Background technology
When detecting car headlamp usually, be that detector detected automobile distance light signal and dipped beam signal are compared with state specified standards distance light hot spot and standard dipped beam "cut-off"line respectively, after data processing, draw testing result.Existing car headlamp automatic tester primary structure is to be provided with preposition light receiving plate, lens combination, rearmounted light receiving plate and computing machine or data processing and control circuit, its groundwork process is: after preposition light receiving plate receives the dipped beam or driving beam detection signal that car headlamp sends, be input to computing machine or data processing circuit is handled, and move until making by control circuit control lens combination or rearmounted light receiving plate and to detect the central area that light beam focuses on rearmounted light receiving plate, demonstrate the beam deviation amount of light intensity again according to the displacement of lens combination or rearmounted light receiving plate by computing machine or circuit.All are the light-receiving members that are provided with several discrete states on the preposition light receiving plate of this class detector and the rearmounted light receiving plate at present, structure as shown in Figure 1, the structure of wherein rearmounted light receiving plate (4) is that four photoelectric cells (3) are set thereon, four photoelectric cells be symmetrically distributed in level to X-axis with vertical be in four quadrants of initial point to the Y-axis intersection point, the rearmounted light receiving plate of this structure can only be from the photosignal of four points of collection in the projection hot spot of light beam, so can only detect automatically distance light at present, can not detect automatically to dipped beam.In order to realize automatic mensuration simultaneously to far and near light, the existing stylus that adopts is taken pictures, image and standard pattern in the computing machine are compared, and carries out Computer Processing again, and this method operation is difficulty very, and the cost height, and price is expensive.
Summary of the invention
The technical problems to be solved in the utility model provides a kind ofly all can be measured the automobile instant and near light, and the rearmounted optoelectronic scanning plate of automatic tester for vehicle headlamp simple in structure, that cost is low, simple to operate.
The technical scheme that addresses the above problem is (referring to implementing illustration): the utility model is provided with rearmounted light receiving plate (4), which is provided with photo-electric conversion element (3), it is characterized in that: described rearmounted light receiving plate (4) central area is for by described photo-electric conversion element (3) the light-receiving scanning area (6) formed of dense arrangement in the plane.
The size of above-mentioned light-receiving scanning area should be as the criterion can all cover the projection hot spot, photo-electric conversion element be generally evenly be distributed as suitable, can be parallel with Y direction evenly distributed along X-direction, also can X, the Y-axis intersection point is the center of circle, evenly distributed along radial direction and concentric circles direction, also can adopt other evenly distributed mode.
When the light beam that preposition light receiving plate is received after rearmounted light fishplate bar central area forms focal beam spot, the curtage of each photo-electric conversion element output promptly changes with the brightness of this corresponding point projection hot spot in the light-receiving scanning area, so just can get access to the shape and the light distribution plan of hot spot by sweep circuit intuitively, and then obtain the light intensity value and the side-play amount of the dipped beam or the distance light of car headlamp, the photo-electric conversion element distribution density is high more in the light-receiving scanning area, accuracy of detection is just high more, and the largest interval between the normal light electric transition element is not more than the diameter of photo-electric conversion element.
The utility model is simple in structure, cost is low, low price, can can only obtain projection hot spot signal by several points by the rearmounted light receiving plate of tradition becomes and can be similar to whole projection hot spot signal by the intensive photo-electric conversion element acquisition of forming the projecting plane, thereby created condition for adopting circuit scanning to obtain signal, and can obtain light spot shape and light distribution plan intuitively by circuit scanning, and the distribution of the electricity on hot spot projecting plane is the light distribution, opto-electronic conversion is direct, can improve detection speed, adopt the utility model to make rearmounted light receiving plate, can detect distance light, also can detect dipped beam.
Description of drawings
The structural representation of preposition light receiving plate 1 and rearmounted light receiving plate 4 in Fig. 1, the existing car headlamp automatic tester optical pickup apparatus
The car headlamp automatic tester optical pickup apparatus structural representation of Fig. 2, employing the utility model embodiment
Fig. 3, the utility model example structure synoptic diagram
The rearmounted light receiving plate 5-of the preposition light receiving plate 2-of 1-optical transmission window 3-photo-electric conversion element 4-car headlamp
6-light-receiving scanning area 7-lens combination
Specific embodiments
These routine rearmounted light receiving plate 4 central areas are light-receiving scanning area 6, and its minor axis radius is greater than the maximum radius of hot spot, so that the light-receiving scanning area can cover whole projection hot spot.
Photo-electric conversion element 3 in the light-receiving scanning area adopts silicon photocells, and diameter is 2mm, adjacent mutually with parallel with X-axis with arrange with the direction parallel with Y-axis.
Also can be adjacent mutually with along radial direction with to arrange along the concentric circles direction.
Claims (3)
1, the rearmounted optoelectronic scanning plate of automatic tester for vehicle headlamp, be provided with rearmounted light receiving plate (4), which is provided with photo-electric conversion element (3), it is characterized in that: described rearmounted light receiving plate (4) central area is for by described photo-electric conversion element (3) the light-receiving scanning area (6) formed of dense arrangement in the plane.
2, the rearmounted optoelectronic scanning plate of automatic tester for vehicle headlamp according to claim 1, it is characterized in that: the largest interval between the described photo-electric conversion element (3) is not more than the diameter of photo-electric conversion element.
3, the rearmounted optoelectronic scanning plate of automatic tester for vehicle headlamp according to claim 1 and 2 is characterized in that: the mutual adjacent dense arrangement of photo-electric conversion element (3) in the described light-receiving scanning area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224102 CN2610318Y (en) | 2003-03-11 | 2003-03-11 | Post photoelectric scanning plate of testing instrument for vehicle head-light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224102 CN2610318Y (en) | 2003-03-11 | 2003-03-11 | Post photoelectric scanning plate of testing instrument for vehicle head-light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610318Y true CN2610318Y (en) | 2004-04-07 |
Family
ID=34163190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224102 Expired - Fee Related CN2610318Y (en) | 2003-03-11 | 2003-03-11 | Post photoelectric scanning plate of testing instrument for vehicle head-light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610318Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453996C (en) * | 2005-07-14 | 2009-01-21 | 吴明 | Method for detecting light intensity of main-beam light by non main light axle illuminancy |
-
2003
- 2003-03-11 CN CN 03224102 patent/CN2610318Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453996C (en) * | 2005-07-14 | 2009-01-21 | 吴明 | Method for detecting light intensity of main-beam light by non main light axle illuminancy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |