CN207850652U - Lens focus point detection device - Google Patents
Lens focus point detection device Download PDFInfo
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- CN207850652U CN207850652U CN201720737072.3U CN201720737072U CN207850652U CN 207850652 U CN207850652 U CN 207850652U CN 201720737072 U CN201720737072 U CN 201720737072U CN 207850652 U CN207850652 U CN 207850652U
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Abstract
The utility model is related to lens technologies, more particularly to a kind of lens focus point detection device, it include the lifting platform for placing exemplar, lifting platform is driven by elevating mechanism and realizes lifting, elevating mechanism is fixed on bottom plate, fixing bracket on bottom plate, it is fixed for that the fixture of lens is clamped on holder, lens are arranged in the top of exemplar, scale is attached on the upper face of bottom plate, the length direction of scale is parallel with the optical axis length direction of lens, thimble is vertically fixed in one end of scale on bottom plate, focal zone and the accurate measurement focus point temperature of progress that the sunlight of different angle generates after lens are detected using the detection device, in this way in car light mounting design, it can be kept away in the enterprising professional etiquette of structure, the higher position of focus point temperature is avoided as possible, reduce the possibility that lens surrounding components are focused sunlight ablation.
Description
Technical field
The utility model is related to lens technology more particularly to a kind of lens focus point detection devices.
Background technology
It is quickly propelled with modular in car headlamp, lens module is generous with its moulding, light type is good, uniform-illumination
The characteristics of just more and more favored by car light designer.However, often occurring lens surrounding components quilt in use
The case where focusing sunlight spot ablation after lens refraction, scrapping for entrucking lamp is caused, more serious quality accident is formed, gives
Car light manufacturer causes huge economy and fame to lose.
Utility model content
The purpose of the utility model is to overcome defects of the existing technology, provide a kind of lens focus point detection device,
The focal zone that the sunlight of different angle generates after lens can be found out and accurately measured, in structure design into
Professional etiquette is kept away, and the possibility that lens surrounding components are focused sunlight ablation is reduced.
To achieve the above object, the utility model proposes following technical schemes：A kind of lens focus point detection device, including
Lifting platform for placing exemplar, lifting platform are driven by elevating mechanism and realize lifting, and elevating mechanism is fixed on bottom plate, on bottom plate
Fixing bracket is fixed on holder that the fixture of lens is clamped, and lens are arranged in the top of exemplar, are attached on the upper face of bottom plate
The length direction of scale, scale is parallel with the optical axis length direction of lens, and thimble is vertically fixed in one end of scale on bottom plate.
Further, the fixture includes the fixed block and movable block for lens to be clamped positioned opposite, and movable block can
Slidingtype is arranged in the slot of fixed seat, and the outer end far from fixed block connects adjusting screw rod in movable block, and adjusting screw rod includes hand
The end of handle and shaft, shaft is inserted into movable block and the two is threadedly coupled, and flange is arranged on shaft, flange holding is in fixed seat
The movement of bar length direction in the card slot of side setting for limiting shaft, fixed seat and fixed block are fixed on holder.
Further, raised line is arranged in the both sides of the movable block, and bar-shaped trough, raised line arrangement is arranged in both sides in the slot of fixed seat
Composition is slidably matched in bar-shaped trough and the length direction of the two is parallel with the bar length direction of shaft.
Preferably, the fixed block and the opposite end of movable block open up the notch for lens to be clamped respectively, notch and
Positioned spacers between the edge of lens.
Advantageous effect：Detect that the focal zone that the sunlight of different angle generates after lens is gone forward side by side using the detection device
The accurate focus point temperature that measures of row can keep away in the enterprising professional etiquette of structure in this way in car light mounting design, avoid focus point as possible
The higher position of temperature reduces the possibility that lens surrounding components are focused sunlight ablation.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model；
Fig. 2 is partial schematic diagram in Fig. 1；
Fig. 3 is the schematic cross-section of the utility model；
Fig. 4 is the utility model sunlight and optical axis angle schematic diagram calculation.
In figure：10- exemplars；20- lifting platforms；30- elevating mechanisms；40- bottom plates；50- holders；60- lens；71- fixed blocks,
72- movable blocks, 721- raised lines, 73- fixed seats, 731- card slots, 74- adjusting screw rods, 741- handles, 742- shafts, 75- flanges,
76- notches；80- scales；90- thimbles.
Specific implementation mode
With reference to Fig. 1-Fig. 4, the utility model will be further described.
A kind of lens focus point detection device includes the lifting platform 20 for placing exemplar 10, and lifting platform 20 is by elevator
Structure 30, which drives, realizes that lifting, elevating mechanism 30 are fixed on bottom plate 40, fixing bracket 50 on bottom plate 40, is fixed on holder 50
The fixture of lens 60 is clamped, lens 60 are arranged in the top of exemplar 10, scale 80 is attached on the upper face of bottom plate 40, scale 80
Length direction is parallel with the optical axis length direction of lens 60, and thimble 90 is vertically fixed in one end of scale 80 on bottom plate 40.
When being detected using the present apparatus, first hand lens 60 is placed between fixed block 71 and movable block 72, and transfers adjusting spiral shell
Bar 74 makes the movement of movable block 72 clamp lens 60, whole device position is then adjusted, by the sun of 90 face of thimble at this time
Direction is considered as and is adjusted in place when the inverted image of thimble 90 is overlapped with scale 80, and lifting platform 20 is driven by adjusting elevating mechanism 30
It moves up and down, hot spot can be formed on exemplar 10 by penetrating the refraction light of lens 60 at this time, and with the movement of lifting platform 20, hot spot
Size, length constantly change, lifting platform 20 is locked when lifting platform 20 is moved at 60 rear hot spot minimum position of lens
Calmly, with the horizontal distance of the plane of the distance H1 of ruler measurement 71 center line of fixed block to exemplar 10 and lens 60 to hot spot
L1, and the diameter D1 of hot spot is recorded, after focusing (5min or more) for a long time, with infrared radiation thermometer record hot spot temperature T1；Equally
, drive lifting platform 20 to move up and down again by elevating mechanism 30 is adjusted, before sunlight is totally reflected to through lens 60 at this time
Side simultaneously forms hot spot on exemplar 10, as the size of the mobile spot of lifting platform 20, length constantly change, when being moved to
Lifting platform 20 is locked at 60 front hot spot minimum position of lens, then measures 71 center line of fixed block to exemplar 10 with ruler
The plane of distance H2 and lens 60 and records the diameter D2 of hot spot to the horizontal distance L2 of hot spot, focus for a long time (5min with
On) after, hot spot temperature T2 is recorded with infrared radiation thermometer, at this point, just recording synchronization (i.e. identical sunlight and lens light axle clamp
Angle α) lens 60 before and after facula position and focus point temperature.It wherein, need to be for different sunlight and lens axis angle α
Different moments repeatedly measure in one day, generally every 5 ° (angle need to be converted into time interval according to place longitude and latitude is measured)
It measures primary.Finally arrange data, the position of the higher focal beam spot of temperature and temperature found out, assessment 10 ablation of exemplar can
Energy property, to be taken precautions against accordingly in structure design.
Focal zone that the sunlight of different angle generates after lens is detected using the detection device and is accurately surveyed
Amount focus point temperature can keep away in the enterprising professional etiquette of structure in this way in car light mounting design, it is higher to avoid focus point temperature as possible
Position, reduce the possibility that lens surrounding components are focused sunlight ablation, improve the service life of lens surrounding components.
Further, the fixture includes the fixed block 71 and movable block 72 for lens 60 to be clamped positioned opposite, is moved
Motion block 72 is slideable to be arranged in the slot of fixed seat 73, and the outer end far from fixed block 71 in movable block 72 connects adjusting screw rod
74, adjusting screw rod 74 includes handle 741 and shaft 742, and the end of shaft 742 is inserted into movable block 72 and the two is threadedly coupled,
Flange 75 is set on shaft 742, and 75 holding of flange is in the card slot 731 that 73 side of fixed seat is arranged for limiting shaft 742
The movement of bar length direction, fixed seat 73 and fixed block 71 are fixed on holder 50.When rotating the handle 741 of adjusting screw rod 74, by
It is limited and can only be rotated by card slot 731 in the shaft 742 of adjusting screw rod 74, and between shaft 742 and movable block 72
It is threadedly coupled, so rotation adjusting screw rod 74 can drive the movement of movable block 72, to realize clamping and the pine to lens 60
It opens.
Preferably, raised line 721 is arranged in the both sides of the movable block 72, and bar-shaped trough is arranged in both sides in the slot of fixed seat 73, convex
Item 721 is arranged in bar-shaped trough to constitute and be slidably matched and the length direction of the two is parallel with the bar length direction of shaft 742.Rotation
While adjusting screw rod 74 drives movable block 72 to move, raised line 721 slides in bar-shaped trough, plays the role of guiding so that moves
The movement of motion block 72 is more stable.
Further, the fixed block 71 and the opposite end of movable block 72 open up the notch for lens 60 to be clamped respectively
76, positioned spacers between notch 76 and the edge of lens 60.Rubber or other soft materials may be used in gasket, not only to lens
60 edges play a protective role, moreover it is possible to which the gasket by replacing different-thickness realizes consolidating to the lens 60 of different edge thickness
Fixed, applicability is wider.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (4)
1. a kind of lens focus point detection device, it is characterised in that：Lifting platform (20) including being used to place exemplar (10), lifting
Platform (20) is driven by elevating mechanism (30) realizes that lifting, elevating mechanism (30) are fixed on bottom plate (40), fixed on bottom plate (40)
Holder (50) is fixed on holder (50) that the fixture of lens (60) is clamped, and lens (60) are arranged in the top of exemplar (10), bottom
Scale (80) is attached on the upper face of plate (40), the length direction of scale (80) is parallel with the optical axis length direction of lens (60),
Thimble (90) is vertically fixed in one end of scale (80) on bottom plate (40).
2. lens focus point detection device according to claim 1, it is characterised in that：The fixture includes positioned opposite
Fixed block (71) for lens (60) to be clamped and movable block (72), movable block (72) is slideable to be arranged in fixed seat (73)
In slot, the outer end connection adjusting screw rod (74) far from fixed block (71) in movable block (72), adjusting screw rod (74) includes handle
(741) and shaft (742), the end of shaft (742) is inserted into movable block (72) and the two is threadedly coupled, and shaft is set on (742)
Set flange (75), bar of flange (75) holding in the card slot (731) that fixed seat (73) side is arranged for limiting shaft (742)
The movement of length direction, fixed seat (73) and fixed block (71) are fixed on holder (50).
3. lens focus point detection device according to claim 2, it is characterised in that：The both sides of the movable block (72) are set
Raised line (721) is set, bar-shaped trough is arranged in both sides in the slot of fixed seat (73), and raised line (721), which is arranged in bar-shaped trough to constitute to slide, matches
It closes and the length direction of the two is parallel with the bar length direction of shaft (742).
4. lens focus point detection device according to claim 3, it is characterised in that：The fixed block (71) and movable block
(72) opposite end opens up the notch (76) for lens (60) to be clamped respectively, between notch (76) and the edge of lens (60)
Positioned spacers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737072.3U CN207850652U (en) | 2017-06-22 | 2017-06-22 | Lens focus point detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720737072.3U CN207850652U (en) | 2017-06-22 | 2017-06-22 | Lens focus point detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207850652U true CN207850652U (en) | 2018-09-11 |
Family
ID=63425434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720737072.3U Active CN207850652U (en) | 2017-06-22 | 2017-06-22 | Lens focus point detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207850652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572058A (en) * | 2017-06-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | Lens focus point detection device and its application method |
| CN110792986A (en) * | 2019-11-29 | 2020-02-14 | 芜湖安瑞光电有限公司 | Ablation-proof structure of automobile front combined lamp |
-
2017
- 2017-06-22 CN CN201720737072.3U patent/CN207850652U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572058A (en) * | 2017-06-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | Lens focus point detection device and its application method |
| CN110792986A (en) * | 2019-11-29 | 2020-02-14 | 芜湖安瑞光电有限公司 | Ablation-proof structure of automobile front combined lamp |
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