CN212539583U

CN212539583U - Photometric equipment

Info

Publication number: CN212539583U
Application number: CN202021907131.5U
Authority: CN
Inventors: 岳学明; 林洽添
Original assignee: Zhuhai Guanghaojie Technology Co ltd
Current assignee: Zhuhai Guanghaojie Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-09-03
Publication date: 2021-02-12
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a photometric equipment, which comprises a frame; the clamping mechanism is connected to the rack and comprises a supporting block and a clamp which is rotatably connected to the supporting block, the clamp is used for clamping a workpiece, the supporting block is hinged to the rack, the supporting block and a hinged shaft of the rack are along the length direction of the supporting block, and the rotating shaft of the clamp is perpendicular to the length direction of the supporting block. The characteristic that the rotating shafts of the supporting block and the clamp are perpendicular to each other is utilized, the workpiece testing angle on the clamp can be adjusted in two axes, the workpiece refers to a camera, namely the camera can collect images from different angles, the stray light of the camera can be conveniently detected, and the detected data are large. The supporting block and the articulated shaft of frame set up along left and right sides direction, and the axis of rotation of anchor clamps is perpendicular to the up end of supporting block.

Description

Photometric equipment

Technical Field

The utility model relates to a check out test set technical field, in particular to photometric equipment.

Background

Stray light exists in a lens or an optical system, the optical system is a system formed by combining a plurality of optical elements such as a lens, a reflector, a prism, an aperture and the like according to a certain sequence and is generally used for imaging or optical information processing, the stray light is caused by reflection between the lens element and a lens endoscope, and the stray light can cause adverse effects such as picture fog and the like and influence the imaging effect. And testing the stray light of the lens or the optical system, and evaluating the performance of the lens or the optical system according to the data obtained by testing.

It is not convenient to test the stray light performance of the lens or optical system at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a photometric equipment, the convenience detects stray light.

A photometric device according to an embodiment of a first aspect of the present invention includes a frame; the clamping mechanism is connected to the rack and comprises a supporting block and a clamp which is rotatably connected to the supporting block, the clamp is used for clamping a workpiece, the supporting block is hinged to the rack, the supporting block and a hinged shaft of the rack are along the length direction of the supporting block, and the rotating shaft of the clamp is perpendicular to the length direction of the supporting block.

According to the utility model discloses photometric equipment has following beneficial effect at least: the characteristic that the rotating shafts of the supporting block and the clamp are perpendicular to each other is utilized, so that the workpiece testing angle on the clamp can be adjusted in two axes, wherein the workpiece refers to a camera, namely the camera can collect images from different angles, the stray light of the camera can be conveniently detected, and more data can be obtained through detection.

According to the utility model discloses a some embodiments, the supporting shoe is the U shape, U shape the supporting shoe includes two curb plates and sets up two bottom plates between the curb plate, the anchor clamps rotate to be connected the bottom plate, the curb plate with the frame is articulated, the U shape the supporting shoe the bottom plate can support anchor clamps, the axis of rotation perpendicular to of anchor clamps the bottom plate, the U shape the supporting shoe is because its skew articulated shaft of focus makes on the anchor clamps the work piece can not by when gathering the image the bottom plate blocks convenient and practical.

According to the utility model discloses a some embodiments, be provided with the support on the supporting shoe, the support is provided with places the district, it is used for placing the test head to place the district, the test head is used for the drive the work piece gathers the image, the lower extreme of support rotates to be connected the bottom plate, the upper end of support is connected anchor clamps set up the support is convenient will the test head with anchor clamps load as an organic whole, reduce to take up space.

According to the utility model discloses a some embodiments, the supporting shoe is provided with the stopper, be provided with in the frame with the dog that the stopper corresponds, the dog is used for keeping out the stopper, the stopper with the dog cooperatees, prevents the supporting shoe rotates excessively.

According to the utility model discloses a some embodiments still include light source device, light source device includes that illuminating part and setting are in the light ring subassembly of illuminating part below, the illuminating part is used for giving out light, the light ring subassembly is used for adjusting the received illumination intensity of work piece utilizes the light ring subassembly is adjusted the illumination intensity that the illuminating part sent makes the work piece receives different illumination intensity, even the illumination image of the illuminating part under the different illumination intensity of camera collection.

According to some embodiments of the utility model, the illuminating part with the light ring subassembly is all through guide bar sliding connection the frame, the guide bar can prevent the illuminating part with the skew vertical axis of motion of light ring subassembly makes the illuminating part with the work piece remains throughout in vertical alignment, and is convenient the image of illuminating part is gathered to the work piece, tests stray light.

According to some embodiments of the utility model, the illuminating part with the light ring subassembly is connected with elevating system, elevating system is used for the drive the illuminating part with the light ring subassembly is at vertical removal, utilizes elevating system makes the illuminating part with the light ring subassembly can be at vertical lift, simple structure, convenient to use.

According to some embodiments of the utility model, elevating system includes the lead screw, the illuminating part with the light ring subassembly all is threaded connection the lead screw, the lead screw rotates and is used for the drive the illuminating part with the light ring subassembly utilizes at vertical removal the lead screw makes the illuminating part with the light ring subassembly goes up and down steadily, simultaneously lead screw simple structure, easy to assemble.

According to some embodiments of the present invention, the aperture assembly comprises a base, a turntable, a light blocking blade, and a housing, the rotary table is rotationally connected with the base, the rotary table is provided with a light hole, the shell is connected with the base and covers the rotary table, the turntable is provided with a path sliding chute which is in a regular polygon shape, the shell is provided with a waist hole, the length direction of the waist hole is arranged along the radial direction of the shell, the shading blade is provided with a guide pin shaft in a penetrating way, one end of the guide pin shaft is connected with one side of the regular polygon in a sliding way, the other end of the guide pin shaft is connected in the waist hole in a sliding way, the shading blades are utilized to extend and retract along the radial direction of the rotary disc, so that the light holes are opened or closed, the shading blades are different in telescopic distance, so that the opening or closing degree of the light holes is different, and the illumination intensity of the light-emitting piece is adjusted conveniently.

According to the utility model discloses a some embodiments, be connected with the scale in the frame, the scale is used for the mark light source device's height, the scale conveniently takes notes light source device's height.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a photometric device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is an exploded view of an aperture assembly of the light measuring apparatus shown in fig. 1;

fig. 4 is a schematic structural view of a lower end view angle of the light measuring apparatus shown in fig. 1;

fig. 5 is a partially enlarged view of B in fig. 4.

A frame 100, a stopper 110, a scale 120;

the clamping mechanism 200, a supporting block 210, a clamp 220, a side plate 211, a bottom plate 212, a limiting block 213,

A cradle 214, a test head 215;

light source device 300, light source plate 310, aperture assembly 320, base 321, turntable 322, and shading blade

A sheet 323, a housing 324, a path chute 322a, a light hole 322b, a waist hole 324a, and a guide pin 326;

guide bar 400, lifting mechanism 500, handle 600.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, a light measuring apparatus includes a frame 100; the clamping mechanism 200 is connected to the rack 100, the clamping mechanism 200 comprises a supporting block 210 and a clamp 220 rotatably connected to the supporting block 210, the clamp 220 is used for clamping a workpiece, the supporting block 210 is hinged to the rack 100, a hinge shaft of the supporting block 210 and the rack 100 is along the length direction of the supporting block 210, and a rotation shaft of the clamp 220 is perpendicular to the length direction of the supporting block 210. The characteristic that the rotating shafts of the supporting block 210 and the clamp 220 are perpendicular to each other is utilized, so that the workpiece testing angle on the clamp 220 can be adjusted in two axes, wherein the workpiece refers to a camera, namely the camera can collect images from different angles, the stray light of the camera is convenient to detect, and the detected data are more. It can be understood that, referring to fig. 1 and 2, the supporting block 210 is provided in the left and right direction with the hinge shaft of the frame 100, and the rotation axis of the clamp 220 is perpendicular to the upper end surface of the supporting block 210.

In some embodiments, the support block 210 is u-shaped, the u-shaped support block 210 includes two side plates 211 and a bottom plate 212 disposed between the two side plates 211, the fixture 220 is rotatably connected to the bottom plate 212, the side plates 211 are hinged to the frame 100, the bottom plate 212 of the u-shaped support block 210 can support the fixture 220, the rotation axis of the fixture 220 is perpendicular to the bottom plate 212, and the u-shaped support block 210 deviates from the hinge axis due to its center of gravity, so that the workpiece on the fixture 220 is not blocked by the bottom plate 212 when the image is captured, which is convenient and practical. It should be noted that, since the side plates 211 of the u-shaped support blocks 210 are hinged to the frame 100, the center of gravity of the u-shaped support blocks 210 is deviated from the hinge axis of the side plates 211 and the frame 100, and in a normal state, the opening of the u-shaped support blocks 210 is upward, and since the fixture 220 is connected to the upper end surface of the bottom plate 212, when the u-shaped support blocks 210 rotate around the hinge axis of the side plates 211 and the frame 100, the fixture 220 always faces the hinge axis of the side plates 211 and the frame 100 and is not blocked by the bottom plate 212. It will be appreciated that if the support block 210 is a flat plate, the flat plate will block the fixture 220 after the flat plate is rotated 90 degrees, resulting in the workpiece on the fixture 220 not being able to capture the desired image.

In some embodiments, the supporting block 210 is provided with a bracket 214, the bracket 214 is provided with a placing area, the placing area is used for placing the test head 215, the test head 215 is used for driving a workpiece to acquire images, the lower end of the bracket 214 is rotatably connected with the bottom plate 212, the upper end of the bracket 214 is connected with the clamp 220, and the bracket 214 is arranged to facilitate loading of the test head 215 and the clamp 220 into a whole, so that the occupied space is reduced. It is noted that the test head 215 is connected to a workpiece, the workpiece may be one of a camera, a convex lens or a concave lens, and the light from the light source device 300 is transmitted to the test head 215 through the workpiece to be imaged, wherein the test head 215 may be a G22 test cartridge or a G42 test cartridge, and the G22 test cartridge or the G42 test cartridge is commercially available as http:// www.dothinkey.com/products/9. It will be appreciated that the test head 215 may also be connected to a computer which processes the acquired images of the workpiece.

In some embodiments, the supporting block 210 is provided with a limiting block 213, the frame 100 is provided with a stopper 110 corresponding to the limiting block 213, the stopper 110 is used for abutting against the limiting block 213, and the limiting block 213 is matched with the stopper 110 to prevent the supporting block 210 from rotating excessively. It can be understood that the front and rear ends of the supporting block 210 are provided with stoppers 213, and the frame 100 is also provided with stoppers 110 corresponding to the stoppers 213.

The light source device 300 further comprises a light source device 300, the light source device 300 comprises a light emitting piece 310 and an aperture assembly 320 arranged below the light emitting piece 310, the light emitting piece 310 is used for emitting light, the aperture assembly 320 is used for adjusting the illumination intensity received by a workpiece, and the illumination intensity emitted by the light emitting piece 310 is adjusted by the aperture assembly 320, so that the workpiece receives different illumination intensities, namely, the camera acquires illumination images of the light emitting piece 310 under different illumination intensities.

In some embodiments, the illuminating member 310 may be a light source plate or a light source barrel, when the illuminating member 310 is a light source plate, the aperture assembly 320 and the fixture 200 are vertically aligned in sequence from top to bottom, the light source plate is disposed above the aperture assembly 320 and the light source plate and the aperture assembly 320 are hermetically connected, so as to prevent light of the light source plate from leaking out from the side; when the light emitting member 310 is a light source tube, the light source tube is disposed above the diaphragm assembly 320, and light emitted from the light source tube may pass through the light transmission hole 322b of the diaphragm assembly 320, the light source tube may also prevent light in the light source tube from leaking out from the side.

In some embodiments, the light emitter 310 and the aperture assembly 320 are slidably connected to the frame 100 through a guide rod 400, and the guide rod 400 can prevent the light emitter 310 and the aperture assembly 320 from deviating from a vertical movement axis, so that the light emitter 310 and the workpiece are always kept in vertical alignment, the workpiece can conveniently acquire an image of the light emitter 310, and stray light can be tested.

In some embodiments, the illuminating member 310 and the aperture assembly 320 can be connected to the frame 100 via a slide rail or a pulley.

In some embodiments, the illuminating member 310 and the aperture assembly 320 may be connected to a first pneumatic or hydraulic cylinder, which drives the illuminating member 310 and the aperture assembly 320 to move up and down.

In some embodiments, the light emitter 310 and the aperture assembly 320 are connected to an elevating mechanism 500, the elevating mechanism 500 is used for driving the light emitter 310 and the aperture assembly 320 to move vertically, and the light emitter 310 and the aperture assembly 320 can be vertically lifted and lowered by the elevating mechanism 500, so that the structure is simple and the use is convenient.

In some embodiments, the lifting mechanism 500 includes a screw rod, the illuminating member 310 and the aperture assembly 320 are both screw-connected screw rods, the screw rod rotates to drive the illuminating member 310 and the aperture assembly 320 to move vertically, the light emitting member 310 and the aperture assembly 320 are lifted and lowered smoothly by the screw rod, and the screw rod is simple in structure and convenient to install.

In some embodiments, two screw rods are provided, and the two screw rods are symmetrically arranged about the axis of the frame 100, and the two screw rods can balance the gravity when the illuminating member 310 and the aperture assembly 320 are lifted, so that the illuminating member 310 and the aperture assembly 320 are lifted stably.

In some embodiments, the lower end of one of the two screw rods is connected with the handle 600 or the motor, the upper ends of the two screw rods are connected through the belt transmission, the connecting handle 600 can be manually adjusted and is easy to control, and the belt transmission has good adaptability and can reduce vibration.

In some embodiments, the lifting mechanism 500 may be a second air cylinder or a second hydraulic cylinder, and the second air cylinder or the second hydraulic cylinder is connected to the light source device 300 to drive the light source device 300 to lift.

In some embodiments, aperture assembly 320 includes a base 321, a turntable 322, the light shading blade 323 and the shell 324, the turntable 322 is rotatably connected with the base 321, the turntable 322 is provided with a light hole 322b, the shell 324 is connected with the base 321 and covers the turntable 322, the turntable 322 is provided with a path chute 322a, the path chute 322a is in a regular polygon shape, the shell 324 is provided with a waist hole 324a, the length direction of the waist hole 324a is arranged along the radial direction of the shell 324, the light shading blade 323 is provided with a guide pin shaft 326 in a penetrating way, one end of the guide pin shaft 326 is slidably connected with one side of the regular polygon, the other end of the guide pin shaft 326 is slidably connected in the waist hole 324a, the light shading blade 323 is used for extending and retracting along the radial direction of the turntable 322 to open or close the light hole 322b, the extension and retraction distances of the light shading blade 323 are different, the opening or closing degree. It can be understood that the rotary disc 322 drives the guiding pin 326 of the shading vane 323 to move along the path sliding slot 322a, so that the shading vane 323 can simultaneously rotate inwards or outwards to adjust the size of the light hole 322 b.

Referring to fig. 4 and 5, a scale 120 is connected to the frame 100, the scale 120 is used for marking the height of the light source device 300, and the scale 120 is used for conveniently recording the height of the light source device 300.

In some embodiments, scales are provided on the rack 100, and a pointer is connected to the light source device 300, so that when the light source device 300 is installed, the light source device 300 is moved, and the scales indicated by the pointer are conveniently and quickly located and installed.

A method of measuring light, comprising the steps of:

mounting, mounting the workpiece on the jig 220;

turning over the test, the light source of the light source device 300 is lighted, the supporting block 210 drives the workpiece to turn over around the hinge shaft of the supporting block 210 and the rack 100 and tests the light source, and an image is collected when the workpiece is turned over for 1 degree;

rotating for testing, wherein the fixture 220 drives the workpiece to rotate around the rotating shaft of the fixture 220 to test the light source, and an image is collected when the workpiece rotates 1 degree;

in the lifting test, the lifting mechanism 500 drives the light source device 300 to move vertically, and an image is collected every time the light source device moves a preset distance;

opening and closing the aperture to test, adjusting the size of the light hole 322b on the aperture assembly 320, and acquiring an image when the size is adjusted to a preset diameter;

and (4) calibrating, namely calibrating the workpiece after the test is finished, and separately placing the qualified product and the unqualified product.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A light measuring apparatus, comprising:

a frame (100);

the clamping mechanism (200) is connected to the rack (100), the clamping mechanism (200) comprises a supporting block (210) and a clamp (220) which is rotatably connected to the supporting block (210), the clamp (220) is used for clamping a workpiece, the supporting block (210) is hinged to the rack (100), a hinge shaft of the supporting block (210) and the rack (100) is along the length direction of the supporting block (210), and a rotating shaft of the clamp (220) is perpendicular to the length direction of the supporting block (210).

2. A light measuring apparatus as claimed in claim 1, wherein: the U-shaped supporting block (210) is U-shaped, the U-shaped supporting block (210) comprises two side plates (211) and a bottom plate (212) arranged between the two side plates (211), the clamp (220) is rotatably connected with the bottom plate (212), and the side plates (211) are hinged with the rack (100).

3. A light measuring apparatus as claimed in claim 2, wherein: the supporting block (210) is provided with a support (214), the support (214) is provided with a placing area, the placing area is used for placing a testing head (215), the testing head (215) is used for driving the workpiece to acquire images, the lower end of the support (214) is rotatably connected with the bottom plate (212), and the upper end of the support (214) is connected with the clamp (220).

4. A light measuring apparatus as claimed in claim 1, wherein: the supporting block (210) is provided with a limiting block (213), the rack (100) is provided with a stop block (110) corresponding to the limiting block (213), and the stop block (110) is used for abutting against the limiting block (213).

5. A light measuring apparatus as claimed in claim 1, wherein: the workpiece-receiving device is characterized by further comprising a light source device (300), wherein the light source device (300) comprises a light-emitting piece (310) and an aperture assembly (320) arranged below the light-emitting piece (310), the light-emitting piece (310) is used for emitting light, and the aperture assembly (320) is used for adjusting the illumination intensity received by the workpiece.

6. A light measuring apparatus as claimed in claim 5, wherein: the light-emitting piece (310) and the diaphragm assembly (320) are both connected with the frame (100) in a sliding mode through guide rods (400).

7. A light measuring apparatus as claimed in claim 5, wherein: the illuminating part (310) and the diaphragm assembly (320) are both connected with a lifting mechanism (500), and the lifting mechanism (500) is used for driving the illuminating part (310) and the diaphragm assembly (320) to move vertically.

8. A light measuring apparatus as claimed in claim 7, wherein: the lifting mechanism (500) comprises a screw rod, the light emitting piece (310) and the diaphragm assembly (320) are in threaded connection, and the screw rod rotates to drive the light emitting piece (310) and the diaphragm assembly (320) to move vertically.

9. A light measuring apparatus according to any one of claims 5 to 8, wherein: diaphragm assembly (320) includes base (321), carousel (322), shading blade (323) and shell (324), carousel (322) rotate to be connected base (321), be provided with light trap (322b) on carousel (322), shell (324) are connected base (321) and cover are established on carousel (322), be provided with route spout (322a) on carousel (322), route spout (322a) are regular polygon, be provided with waist hole (324a) on shell (324), the length direction in waist hole (324a) is followed the radial setting of shell (324), guide pin axle (326) is worn to be equipped with in shading blade (323), the one end sliding connection of guide pin axle (326) regular polygon wherein one side, other end sliding connection correspond in waist hole (324 a).

10. A light measuring apparatus according to any one of claims 5 to 8, wherein: the rack (100) is connected with a scale (120), and the scale (120) is used for marking the height of the light source device (300).