CN109100862A - The control structure of imaging system and iris diaphgram - Google Patents
The control structure of imaging system and iris diaphgram Download PDFInfo
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- CN109100862A CN109100862A CN201811020713.9A CN201811020713A CN109100862A CN 109100862 A CN109100862 A CN 109100862A CN 201811020713 A CN201811020713 A CN 201811020713A CN 109100862 A CN109100862 A CN 109100862A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
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Abstract
本发明提供了一种可变光阑的控制结构，包括内置光束通道的支撑筒体，支撑筒体的光束入口设置有层叠配合的第一光阑板和第二光阑板，第一光阑板上开设有连通光束通道的第一控制窗，第二光阑板上开设有连通第一控制窗和光束通道的第二控制窗；还包括驱动第一光阑板和第二光阑板沿相反方向错位平移的驱动装置。第一光阑板和第二光阑板可由驱动装置控制沿相反的方向平移，实现对第一控制窗和第二控制窗重叠面积逐步变小直至错位分离，反向驱动第一控制窗和第二控制窗回复至最大重叠面积。通过第一光阑板和第二光阑板沿相反方向错位平移配合，实现对光束通道宽度的控制，结构简单，优化了可变光阑的控制结构。本发明还提供了一种成像系统。
The invention provides a control structure for an iris diaphragm, which includes a support cylinder with a built-in beam passage, the beam entrance of the support cylinder is provided with a stacked and matched first diaphragm plate and a second diaphragm plate, the first diaphragm A first control window communicating with the beam channel is opened on the plate, and a second control window communicating with the first control window and the beam channel is opened on the second diaphragm plate; it also includes driving the first diaphragm plate and the second diaphragm plate along the Drives for misalignment translation in opposite directions. The first diaphragm plate and the second diaphragm plate can be controlled by the driving device to translate in opposite directions, so as to gradually reduce the overlapping area of the first control window and the second control window until they are misaligned and separated, and reversely drive the first control window and the second control window The two control windows return to the maximum overlapping area. The control of the width of the light beam channel is realized through the dislocation and translation cooperation of the first diaphragm plate and the second diaphragm plate in opposite directions, the structure is simple, and the control structure of the variable diaphragm is optimized. The invention also provides an imaging system.
Description
Technical field
The present invention relates to iris diaphgram technical fields, more specifically to the control of a kind of imaging system and iris diaphgram
Structure processed.
Background technique
Diaphragm refers to the entity for playing restriction effect to light beam in optical system, it can be the edge of lens, frame
Or the screen with holes being especially arranged.The effect of diaphragm can be divided to two aspects, limit light beam or limitation visual field (areas imaging) size.Optics
The most diaphragm of light beam, referred to as aperture diaphragm, the most diaphragm of limitation visual field (size), referred to as field stop are limited in system.
Aperture diaphragm and field stop are both in kind, determine that the general rule of the aperture diaphragm of optical system is the diaphragm in terms of object point
Or the picture of diaphragm, by wherein subtended angle it is the smallest that, to determine the aperture diaphragm of optical system.
Iris diaphgram is the device for controlling width of light beam, thus it is possible to vary (abbreviation of intensity of illumination is for the illumination of image planes
Refer to the energy of received visible light on unit area), it is indispensable component part in photographic system and optical projection system,
Also change the illumination of observed object in microscopical lighting system with iris diaphgram, to obtain better clarity.
Therefore, the control structure for how optimizing iris diaphgram, is a problem to be solved by those skilled in the art.
Summary of the invention
In view of this, the present invention provides a kind of control structure of iris diaphgram, to optimize the control structure of iris diaphgram；
The present invention also provides a kind of imaging systems.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of control structure of iris diaphgram, the support cylinder including built-in beam channel, the light beam of the support cylinder
Entrance is provided with the first aperture plate and the second aperture plate of stacking cooperation, and the connection light beam is offered on first aperture plate
The first of channel controls window, and the second of the connection first control window and the beam channel is offered on second aperture plate
Control window；
It further include that first aperture plate and second aperture plate is driven to misplace in opposite direction the driving device of translation.
Preferably, in the control structure of above-mentioned iris diaphgram, first aperture plate includes being suspended in the light beam to enter
The first diaphragm mainboard of mouth and the first driving plate for driving end for being set to the first diaphragm mainboard；Second aperture plate includes
It is suspended in the second diaphragm mainboard of the first diaphragm plate thickness direction side and is set to the driving of the second diaphragm mainboard
Second driving plate at end；
The driving device is synchronous to drive first driving plate and the second driving plate reverse shuffle.
Preferably, in the control structure of above-mentioned iris diaphgram, the driving device includes rack-mounted in the support cylinder
Driving motor on outer wall and the driving gear for being set to the driving motor output end；
The with the driving gear drive cooperation is fixed in first driving plate and second driving plate respectively
One rack gear and the second rack gear；
First rack gear and second rack gear are set to the two sides of the sliding tooth wheel radial.
Preferably, in the control structure of above-mentioned iris diaphgram, first driving plate and second driving plate are symmetrical
The two sides of the sliding tooth wheel radial are arranged in, first driving plate is set to the side of the first aperture plate width direction
And it is stretched out along the glide direction of first aperture plate；
Second driving plate is set to the side of the second aperture plate width direction and along second aperture plate
Glide direction is stretched out.
Preferably, in the control structure of above-mentioned iris diaphgram, the first control window and the second control window are
With the symmetrical Beam Control window of the eccentric axial of the beam channel.
Preferably, in the control structure of above-mentioned iris diaphgram, the first control window and the second control window are
Square control window, the square control cunning of the square tip along first aperture plate and second aperture plate of window
Direction is moved to arrange in the same direction.
Preferably, in the control structure of above-mentioned iris diaphgram, the beam inlet of the support cylinder is also fixed with to institute
The channel support frame that the first aperture plate and second aperture plate are supported along its thickness direction is stated, on the channel support frame
Offer the guide channel being oriented to the sliding of first aperture plate and second aperture plate.
Preferably, in the control structure of above-mentioned iris diaphgram, the channel support frame includes being installed in the support tube
The beam inlet of body, the support base that first aperture plate is supported；
Be installed in the support base, and cover at the guide plate of the second diaphragm plate surface；
The sliding to first aperture plate and second aperture plate is surrounded between the guide plate and the support base
The guide channel being oriented to.
Preferably, in the control structure of above-mentioned iris diaphgram, offered on the support base and the guide plate with
The light beam illumination window of the beam channel connection.
Preferably, in the control structure of above-mentioned iris diaphgram, the first control window and the second control window
By the first stroke positioned opposite to the two dislocation closure, less than the second stroke that the sliding tooth wheel rotates one week.
Preferably, in the control structure of above-mentioned iris diaphgram, it is provided with frame on the support cylinder and supports the driving electricity
The motor cabinet of machine, the motor cavity are pasted with photoelectricity pair, the driving in one end of the output shaft radial direction of the driving motor
It is provided on the output shaft of motor when the first control window and opposite the second control window, is cooperated with the photoelectricity zero-bit
Zero disk；It further include the control device for detecting the clean state of the zero disk and the photoelectricity pair.
The control structure of the iris diaphgram controlled illuminance of image plane, feature is arranged inside in a kind of imaging system
It is, the control structure of the iris diaphgram is the control structure of iris diaphgram described in any one as above.
The control structure of iris diaphgram provided by the invention, the support cylinder including built-in beam channel, supports cylinder
Beam inlet is provided with the first aperture plate and the second aperture plate of stacking cooperation, offers connection beam channel on the first aperture plate
The first control window, the second control window of the first control window of connection and beam channel is offered on the second aperture plate；It further include driving
Dynamic first aperture plate and the second aperture plate misplace the driving device of translation in opposite direction.First aperture plate and the second aperture plate are equal
For plate structure, the two stacking cooperates, and is set in the beam inlet support tube body of support cylinder and beam channel is arranged, and is used for
The transmission path of light beam.First control window and the second control window setting are connected to beam channel, and light beam may pass through the first aperture plate
It is sent into support tube with the second aperture plate.First aperture plate and the second aperture plate can be controlled by driving device puts down in opposite direction
It moves, in translation motion, the first control window and second controls window since the overlapping area of both dislocation translations gradually becomes smaller until mistake
Position separation, is driven in the reverse direction the first control window and the second control window returns back to Maximum overlap area.Support cylinder beam inlet,
The first aperture plate and the second aperture plate arranged by arrangement of stacked, misplaced translation cooperation in opposite direction by driving device,
The control to beam channel width can be realized by simple mechanical structure, structure is simple, optimizes the control of iris diaphgram
Structure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the main view of the control structure of iris diaphgram provided by the invention；
Fig. 2 is the top structure schematic diagram of the control structure of iris diaphgram in Fig. 1；
Fig. 3 is A-A sectional view in Fig. 2；
Fig. 4 is the structural schematic diagram of the first aperture plate in Fig. 1；
Fig. 5 is the structural front view of channel support frame in Fig. 1；
Fig. 6 is the left view cross-sectional view of channel support frame；
Fig. 7 is the plan structure cross-sectional view of channel support frame；
Fig. 8 is the structural schematic diagram of guide plate in Fig. 1；
Fig. 9 is the left view structure sectional view of guide plate.
Specific embodiment
The invention discloses a kind of control structures of iris diaphgram, optimize the control structure of iris diaphgram；The present invention is also
Provide a kind of imaging system.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As Figure 1-Figure 4, Fig. 1 is the main view of the control structure of iris diaphgram provided by the invention；Fig. 2 is in Fig. 1
The top structure schematic diagram of the control structure of iris diaphgram；Fig. 3 is A-A sectional view in Fig. 2；Fig. 4 is the first diaphragm in Fig. 1
The structural schematic diagram of plate.
This case provides a kind of control structure of iris diaphgram, the support cylinder 1 including built-in beam channel 101, support
The beam inlet of cylinder 1 is provided with the first aperture plate 9 and the second aperture plate 11 of stacking cooperation, offers on the first aperture plate 9
It is connected to the first control window 93 of beam channel 101, offers the first control window 9 of connection and beam channel on the second aperture plate 11
101 the second control window；It further include that the first aperture plate 9 and the second aperture plate 11 is driven to misplace in opposite direction the driving dress of translation
Set 2.First aperture plate 9 and the second aperture plate 11 are plate structure, and the two stacking cooperates, and is set to the light of support cylinder 1
Beam entrance, support tube, 1 interior setting beam channel 101, the transmission path for light beam.First control window 93 and the second control window
Setting is connected to beam channel 101, and light beam may pass through the first aperture plate 9 and the second aperture plate 11 is sent into support tube.First light
Late plate and 9 second aperture plates 11 can be controlled by driving device 2 to be translated in opposite direction, in translation motion, the first control window 93
With the second control window since the overlapping area of both dislocation translations gradually becomes smaller until dislocation separation, is driven in the reverse direction the first control window
93 and second control window return back to Maximum overlap area.In the beam inlet of support cylinder 1, first arranged by arrangement of stacked
Aperture plate 9 and the second aperture plate 11, misplaced translation cooperation in opposite direction by driving device 2, passes through simple mechanical structure
The control to beam channel width can be realized, structure is simple, optimizes the control structure of iris diaphgram.
In one specific embodiment of this case, the first aperture plate 9 includes being suspended in the first diaphragm of beam inlet mainboard 91 and setting
It is placed in first driving plate 92 at the driving end of the first diaphragm mainboard 91；Second aperture plate includes being suspended in 9 thickness of the first aperture plate
Second diaphragm mainboard of direction side and the second driving plate for driving end for being set to the second diaphragm mainboard.
First aperture plate 9 is identical with 11 structure of the second aperture plate, is entered by being suspended in light beam in thickness direction reversed arrangement
Mouthful, this structure for sentencing the first aperture plate 9 is introduced.
Driving device the first driving plate 92 of synchronous driving and the second driving plate reverse shuffle.First aperture plate 9 and the second light
Late plate changes overlapping area by the thereon first control window 93 and the second control window, adjusts light beam in dislocation translation motion
Width, the first aperture plate 9 and the second aperture plate 11 are by being respectively set the first diaphragm mainboard 91 thereon and the second diaphragm mainboard
Work of the control window to translation and adjusting control window overlapping area size is carried out, due to the first aperture plate 9 and the second aperture plate 11
Driven in translation is carried out by driving device 2, first driving plate 92 is set at the driving end of the first diaphragm mainboard 91, in the second diaphragm master
The second driving plate, driving device 2 and the first driving plate 92 is arranged in the driving end of plate and the transmission of the second driving plate cooperates, to drive
First diaphragm mainboard 91 and the second diaphragm mainboard are to movement.It is understood that the first aperture plate 9 and the second aperture plate 11 are in mistake to being
In the translation motion of position, both the first driving plate 92 and the second driving plate forward (FWD) are dynamic relative translation, driving device 2 to drive actions not
Influence the adjusting of control window size.
In one specific embodiment of this case, driving device 2 includes the rack-mounted driving motor on support 1 outer wall of cylinder and sets
It is placed in the driving gear 7 of driving motor output end.
The first rack gear 8 with the driving transmission cooperation of gear 7 is fixed in first driving plate 92 and the second driving plate 11 respectively
With the second rack gear 10；
First rack gear 8 and the second rack gear 10 are set to the radial two sides of driving gear 7.
Iris diaphgram is chiefly used in photographic system or optical projection system, and due to equipment, this body structure is smaller, internal drive dress
It sets and driving structure should be avoided for the first aperture plate 9 and the second aperture plate 11 volume for increasing imaging device.Therefore to first
When aperture plate 9 and the second aperture plate 11 are driven, passes through driving gear 7 and drive the along the radial both ends of driving gear 7 simultaneously
The mode of one rack gear 8 and the second rack gear 10 is driven.
The output axis connection of gear 7 and driving motor is driven, driving motor can drive driving gear 7 forward or reverse, by
The radial two sides of driving gear 7 are set in the first rack gear 8 and the second rack gear 10, when the driving gear 7 made rotates, are applied to the
It is reversed to driving force on one rack gear 8 and the second rack gear 10, the first rack gear 8 and the second rack gear 10 are respectively arranged at the first aperture plate
9 and second on aperture plate 11, then the first driving plate 9 and the second driving plate 11 are located at the same side, and it is real can to pass through same activation point
Existing first aperture plate 9 and the second aperture plate 11 are moved along opposite both direction, meet the first control window 93 and the second control window phase
To or inverted running change width of light beam to purpose.
In one specific embodiment of this case, the first driving plate 92 and the second driving plate are symmetrically arranged in sliding tooth wheel radial 7
Two sides, the first driving plate 92 is set to the side of 9 width direction of the first aperture plate and stretches along the glide direction of the first aperture plate 9
Out.
Second driving plate is set to the side of the second aperture plate width direction and stretches out along the glide direction of the second aperture plate.
To further decrease the first driving plate 92 and the second driving plate driving structure to occupied space, by the first driving plate 92
Driving 7 radially opposite sides of gear are distributed in the second driving plate, the width of the first driving plate 92 is narrower than the width of the first aperture plate 9,
The first rack gear 8 is arranged in the side of its width direction, and the width of the second driving plate is narrower than the second aperture plate to width, width direction
Side the second rack gear 10 is set, that is, the first aperture plate 9 and the second aperture plate 11 is whole is of an L-shaped structure, the two structure is identical,
Reverse stack is arranged in a thickness direction, and driving gear 7 and the first rack gear are surrounded between the first driving plate 92 and the second driving plate
8, the driving space of the second rack gear 10.
In one specific embodiment of this case, the first control window 93 and the second control window are eccentric axial with beam channel
Symmetrical Beam Control window.Light beam passes through the first control window 93 and the second control window is sent into beam channel 101, the first aperture plate 9
With when the second aperture plate 11 is opposite or reversed translation operation, it is wide that the first control window 93 and the second control window because of dislocation change light beam
Degree, it is concentric for beam channel on the center and support cylinder 1 of the first control window 93 of guarantee and the second control window change width of light beam
First control window 93 and the second control window are disposed as the Beam Control being centrosymmetric with beam channel to axle center by arrangement
Window, then the first control window 93 and the second control window will be to center with support tube inner light beam channel always to variation to width of light beam
Center carries out beam Propagation.
Specifically, the first control window 93 and the second control window are square control window, the square of square control window
Tip is arranged in the same direction along the glide direction of the first aperture plate 9 and the second aperture plate 11.By the first control window 93 and the second control window
Be disposed as square control window, then no matter the first aperture plate 9 and the second aperture plate 11 is opposite or reversed translation, the first control window
93 and second control the Beam Control window that window surrounds, and will be always to control window 93 or the second control window scaled down with original first
Structure, though so that conveying width of light beam change, be sent into light beam to imaged shape with first control window 93 and
Second control window is consistent to structure.
As shown in Fig. 5-Fig. 9, Fig. 5 is the structural front view of channel support frame in Fig. 1；Fig. 6 is the left view of channel support frame
Cross-sectional view；Fig. 7 is the plan structure cross-sectional view of channel support frame；Fig. 8 is the structural schematic diagram of guide plate in Fig. 1；Fig. 9 is guiding
The left view structure sectional view of plate.
In one specific embodiment of this case, the beam inlet of support cylinder 1 is also fixed with to the first aperture plate 9 and the second light
The channel support frame 6 that late plate 11 is supported along its thickness direction is offered to the first aperture plate 9 and on channel support frame 6
The guide channel 62 that the sliding of two aperture plates 11 is oriented to.First aperture plate 9 and the second aperture plate 11 are in the light for supporting cylinder 1
Beam entrance position be suspension arrangement, only by the gear & rack structure at the first driving plate 92 and the second driving plate be supported with
Driven in translation, in order to avoid influencing the first control window 93 and the second control window position dislocation due to driving structure change in location,
It supports the beam inlet of cylinder 1 that channel support frame 6 is set, opens up guide channel 62,6 He of the first aperture plate on channel support frame 6
Second diaphragm, 11 plate is arranged in guide channel 62, carries out edge to the first aperture plate 9 and the second aperture plate 11 by guide channel 62
Its translation direction two sides is to guide and limit, specifically, can be by 62 width direction two sides of guide channel and the first aperture plate 9 and second
11 width direction clearance fit of aperture plate, when there is the first aperture plate 9 or 11 structural deflection of the second aperture plate tilts, by being oriented to
Channel 62 limits the width direction of the first aperture plate 9 and the second aperture plate 11, and then guarantees the first control window 93 and the
Two control window positions are to correspondence.
In one specific embodiment of this case, channel support frame 6 includes the beam inlet for being installed in support cylinder 1, to first
The support base 61 that aperture plate 9 is supported；
Be installed in support base 61, and cover at the guide plate 12 on 11 surface of the second aperture plate；
It is surrounded between guide plate 12 and support base 61 and the sliding of first aperture plate 9 and the second aperture plate 11 is oriented to
Guide channel 62.
First aperture plate 9 and the second aperture plate 11 are plate construction, after needing that positioning is installed by gear & rack structure,
The assembling with channel support frame 6 is carried out again.By including support base 61 by the setting of channel support frame 6 and covering on support base 61
Guide plate 12, after the first aperture plate 9 and the second aperture plate 11 can be layed in respectively on support base 61, then guide plate 12 covered
On the first aperture plate 9 and the second aperture plate 11, to reduce the first aperture plate 9 and the second aperture plate 11 and channel support frame
6 installation difficulty, and the first aperture plate 9 and the second aperture plate 11 is avoided to be placed on channel support frame 6 in the process to first
The collision of aperture plate 9 and the second aperture plate 11 misplaces.
Threaded hole is opened up on channel support frame 6, the end of support cylinder 1 is installed in by bolt.
Further, step-like locating slot 63 is set in the two sides of 6 width direction of support base, is arranged on corresponding guide plate 12
With step-like 63 structure of locating slot accordingly step-like card holding trough 121, the first diaphragm is surrounded between guide plate 12 and support base 61
The guided in translation channel 62 of plate 9 and the second aperture plate 11, it is step-like fixed on support base 6 and guide plate 12 to be distributed in by setting
Position slot 63 and 121 structure of step-like card holding trough is fixed again after can snapping fits into position in 12 installation process of guide plate, further keeps away
Exempt from the problem of colliding in installation process to the first aperture plate and the second aperture plate.
In one specific embodiment of this case, offers on support base 61 and guide plate 12 and be connected to beam channel 101
Light beam illumination window 64.First aperture plate 9 and the second aperture plate 11 are in the guide channel 62 that support base 61 and guide plate 12 surround
Sliding, is required to open up the light beam illumination window 64 being connected to beam channel thereon, by the light beam on support base 61 and guide plate 12
Illumination window open up for the first control window 93 and the second corresponding square structure of control window construction, avoid light beam irradiation process
The image quality of light beam is influenced since optical diffraction occurs in the edge of Beam Control window and the first control window or the second control window.
Preferably, the Beam Control window on guide plate 12 is provided in round illumination window 122, the internal diameter of round illumination window 122
It is identical as the first control centerline length of window 93, so as to be controlled by round illumination window 122 to the first control window 93 and second
The position of window processed is observed, using to 11 position control of the first aperture plate 9 and the second aperture plate.
In one specific embodiment of this case, the first control window 93 and the second control window are closed by positioned opposite misplace to the two
First stroke, rotate one week second stroke less than driving gear 7.Driving motor by driving gear band move the first rack gear and
The translation of second rack gear, the length of sliding tooth wheel rotation path are consistent with the stroke of the first control window and the second control window opening and closing.By
The first aperture plate and the second aperture plate is driven reversely to translate simultaneously in driving gear, therefore, when the rotation path of driving gear is long
When degree is square the half of control window catercorner length, the first control window and the second control window can be realized and be closed completely by being opened into
It closes.
It is controlled by the gear diameter size to driving gear, sliding tooth wheel is rotated to one week second stroke, greatly
Window and the second control window are controlled in first, and the first stroke that window dislocation is closed is controlled to the first control window and second by positioned opposite,
Within i.e. sliding tooth wheel rotates one week, it can be realized and the first control window and the second control window are fully opened by being closed to, pass through
The size of driving gear and the first control window, the second control window is controlled, reduces choice of electrical machine difficulty, control structure is simple
Reliably.
In one specific embodiment of this case, supports and be provided with the motor cabinet 3 that frame supports driving motor on cylinder 1, motor cabinet 3
Photoelectricity is pasted with to 4 in one end of the output shaft radial direction of driving motor, is provided on the output shaft of driving motor when the first control
When window 13 and opposite the second control window, 4 zero-bits are cooperated with photoelectricity zero disk 5；It further include detection zero disk and photoelectricity pair
The control device of clean state.
Due to driving motor drive shaft without rotate can be realized within one week to first control window 93 and second control window by
It is opened fully to the control of closure, photoelectricity is set on motor cabinet 3 to 4, the setting zero disk 5 on motor driving shaft, photoelectricity is to 4
Corresponding position with zero disk 5 is the first control window 13 and the second control completely open relative position of window, that is, passes through photoelectricity pair
With zero disk can be detected to whether the first aperture plate and the second aperture plate return back to initial position, by with control device
Cooperation, guarantee the first aperture plate and the second aperture plate motion structure stability.
The control structure of the iris diaphgram provided in based on the above embodiment, the present invention also provides a kind of imaging system,
The control structure of the iris diaphgram controlled illuminance of image plane is arranged inside, the control structure of the iris diaphgram is above-mentioned reality
The control structure of the iris diaphgram provided in example is provided.
Since the imaging system uses the control structure of the iris diaphgram of above-described embodiment, so the imaging system is by can
The control structure bring beneficial effect of darkening door screen please refers to above-described embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of control structure of iris diaphgram, which is characterized in that the support cylinder including built-in beam channel, the support tube
The beam inlet of body is provided with the first aperture plate and the second aperture plate of stacking cooperation, offers connection on first aperture plate
The first of the beam channel controls window, and the connection first control window is offered on second aperture plate and the light beam is logical
The second control window in road；
It further include that first aperture plate and second aperture plate is driven to misplace in opposite direction the driving device of translation.
2. the control structure of iris diaphgram according to claim 1, which is characterized in that first aperture plate includes suspension
In the first driving plate of beam inlet the first diaphragm mainboard and the driving end for being set to the first diaphragm mainboard；Described
Two aperture plates include being suspended in the second diaphragm mainboard of the first diaphragm plate thickness direction side and being set to second light
Second driving plate at the driving end of late mainboard；
The driving device is synchronous to drive first driving plate and the second driving plate reverse shuffle.
3. the control structure of iris diaphgram according to claim 2, which is characterized in that the driving device include it is rack-mounted in
Driving motor on the support cylinder body outer wall and the driving gear for being set to the driving motor output end；
The first tooth with the driving gear drive cooperation is fixed in first driving plate and second driving plate respectively
Item and the second rack gear；
First rack gear and second rack gear are set to the two sides of the sliding tooth wheel radial.
4. the control structure of iris diaphgram according to claim 3, which is characterized in that first driving plate and described
Two driving plates are symmetrically arranged in the two sides of the sliding tooth wheel radial, and it is wide that first driving plate is set to first aperture plate
It spends the side in direction and is stretched out along the glide direction of first aperture plate；
Second driving plate is set to the side of the second aperture plate width direction and along the sliding of second aperture plate
Direction is stretched out.
5. the control structure of iris diaphgram according to claim 1, which is characterized in that the first control window and described the
Two control windows are with the symmetrical Beam Control window of the eccentric axial of the beam channel.
6. the control structure of iris diaphgram according to claim 5, which is characterized in that the first control window and described the
Two control windows are square control window, and the square tip of the square control window is along first aperture plate and described the
The glide direction of two aperture plates is arranged in the same direction.
7. the control structure of iris diaphgram according to claim 1, which is characterized in that the beam inlet of the support cylinder
It is also fixed with the channel support frame being supported to first aperture plate and second aperture plate along its thickness direction, it is described
The guide channel being oriented to the sliding of first aperture plate and second aperture plate is offered on channel support frame.
8. the control structure of iris diaphgram according to claim 7, which is characterized in that the channel support frame includes being fixedly mounted with
In the beam inlet of the support cylinder, the support base being supported to first aperture plate；
Be installed in the support base, and cover at the guide plate of the second diaphragm plate surface；
The progress of the sliding to first aperture plate and second aperture plate is surrounded between the guide plate and the support base
The guide channel of guiding.
9. the control structure of iris diaphgram according to claim 8, which is characterized in that the support base and the guide plate
On offer the light beam illumination window being connected to the beam channel.
10. the control structure of iris diaphgram according to claim 3, which is characterized in that it is described first control window and
The second control window by it is positioned opposite to both dislocation closure first stroke, rotate the of one week less than the sliding tooth wheel
Two strokes.
11. the control structure of iris diaphgram according to claim 10, which is characterized in that be provided on the support cylinder
Frame supports the motor cabinet of the driving motor, and the motor cavity is pasted with light in one end of the output shaft radial direction of the driving motor
Electricity is right, is provided on the output shaft of the driving motor when the first control window and opposite the second control window, with institute
State the zero disk of photoelectricity zero-bit cooperation；It further include the control device for detecting the clean state of the zero disk and the photoelectricity pair.
12. a kind of imaging system, is arranged inside the control structure of the iris diaphgram controlled illuminance of image plane, feature exists
In the control structure of the iris diaphgram is the control structure of the iris diaphgram as described in any one of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811020713.9A CN109100862A (en) | 2018-09-03 | 2018-09-03 | The control structure of imaging system and iris diaphgram |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811020713.9A CN109100862A (en) | 2018-09-03 | 2018-09-03 | The control structure of imaging system and iris diaphgram |
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| Publication Number | Publication Date |
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| CN109100862A true CN109100862A (en) | 2018-12-28 |
Family
ID=64864918
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811020713.9A Pending CN109100862A (en) | 2018-09-03 | 2018-09-03 | The control structure of imaging system and iris diaphgram |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426841A (en) * | 2019-06-26 | 2019-11-08 | 哈尔滨新光光电科技股份有限公司 | A kind of iris diaphgram dimming device based on steel band movement |
| CN114114671A (en) * | 2021-11-10 | 2022-03-01 | 苏州科韵激光科技有限公司 | Electric rectangular diaphragm device and diaphragm size adjusting method |
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| JPH09197299A (en) * | 1996-01-22 | 1997-07-31 | Dainippon Screen Mfg Co Ltd | Aperture device |
| CN102043305A (en) * | 2009-10-20 | 2011-05-04 | 佳能株式会社 | Aperture unit and lens barrel including the same |
| CN203870368U (en) * | 2014-05-29 | 2014-10-08 | 中山联合光电科技有限公司 | Two-blade stepping-type aperture system |
| CN104155827A (en) * | 2014-08-25 | 2014-11-19 | 中山联合光电科技有限公司 | Stepping aperture device with photoelectric detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09197299A (en) * | 1996-01-22 | 1997-07-31 | Dainippon Screen Mfg Co Ltd | Aperture device |
| CN102043305A (en) * | 2009-10-20 | 2011-05-04 | 佳能株式会社 | Aperture unit and lens barrel including the same |
| CN203870368U (en) * | 2014-05-29 | 2014-10-08 | 中山联合光电科技有限公司 | Two-blade stepping-type aperture system |
| CN104155827A (en) * | 2014-08-25 | 2014-11-19 | 中山联合光电科技有限公司 | Stepping aperture device with photoelectric detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110426841A (en) * | 2019-06-26 | 2019-11-08 | 哈尔滨新光光电科技股份有限公司 | A kind of iris diaphgram dimming device based on steel band movement |
| CN114114671A (en) * | 2021-11-10 | 2022-03-01 | 苏州科韵激光科技有限公司 | Electric rectangular diaphragm device and diaphragm size adjusting method |
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Application publication date: 20181228 |
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