CN105652428A - Microscope lighting device with concentration angle regulating function - Google Patents

Microscope lighting device with concentration angle regulating function Download PDF

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Publication number
CN105652428A
CN105652428A CN201610202358.1A CN201610202358A CN105652428A CN 105652428 A CN105652428 A CN 105652428A CN 201610202358 A CN201610202358 A CN 201610202358A CN 105652428 A CN105652428 A CN 105652428A
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CN
China
Prior art keywords
optical axis
microscope
sliding support
led
support
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Granted
Application number
CN201610202358.1A
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Chinese (zh)
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CN105652428B (en
Inventor
赵烟桥
曹帆
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN201610202358.1A priority Critical patent/CN105652428B/en
Publication of CN105652428A publication Critical patent/CN105652428A/en
Application granted granted Critical
Publication of CN105652428B publication Critical patent/CN105652428B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G02B21/08—Condensers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G02B21/08—Condensers
    • G02B21/086—Condensers for transillumination only

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

The invention relates to the field of scientific instruments and relates to a microscope lighting device with a concentration angle regulating function, in particular to a microscope accessory; the microscope lighting device comprises a mounting end fitted to a microscope objective lens; the upper portion of the mounting end is provided with a fixed support having no displacement in the optical axis direction; the middle of the mounting end is provided with a sliding support which moves along the optical axis direction; the lower portion of the mounting end is provided with a diffuse transmission ring which moves along the optical axis; an LED support rod is connected respectively with the fixed support and the sliding support through rotary shafts, rotates relative to the fixed support and rotates and slides relative to the sliding support, and an LED lamp is disposed below the LED support rod; the microscope lighting device has the function of regulating LED light source irradiating direction and enables diffuse transmission of emergent beams of an LED light source, weakening directionality of the LED light source, improving lighting uniformity, solving the high brightness and dark area problems and improving imaging quality of a microscope.

Description

A kind of microscope illuminator with condensing angle regulatory function
Technical field
A kind of microscope illuminator with condensing angle regulatory function of the present invention relates to scientific instrument field, is specifically related to a kind of microscope accessory.
Background technology
Microscope imaging quality is directly related with illumination, and microscopical illumination can adopt nature light and electric light source, and owing to natural light is difficult to meet technology requirement in most cases, therefore electric source lighting has become high-end microscopical standard configuration. In numerous electric source lighting technology, owing to LED light source produces almost without heat in luminescence process, without influence on the various character of measured object, therefore it is widely adopted. But, owing to the directivity of LED light source is relatively strong, therefore uniformity is difficult to be guaranteed, and then can bring the problem of such as Gao Guang, dark space, affects microscopical image quality.
Summary of the invention
In order to solve the problems referred to above, the present invention devises a kind of microscope illuminator with condensing angle regulatory function, this illuminator has LED light source direction of illumination and adjusts function, again the outgoing beam of LED light source is carried out diffusing transmission, weaken the directivity of LED light source, and then increase illumination uniformity, the problem overcoming Gao Guang, dark space, improve microscopical image quality.
The object of the present invention is achieved like this:
A kind of microscope illuminator with condensing angle regulatory function, including the installation end being installed on microscope objective; The top of described installation end is provided with the fixed support along optical axis direction non-displacement; The middle part of installation end is provided with the sliding support moved along optical axis direction; The bottom of installation end is provided with the diffusing transmission ring moved along optical axis direction; LED support bar is connected with fixed support and sliding support rotating shaft respectively, LED support bar relative to fixed support rotate, relative to sliding support rotate and slide, LED support bar be arranged below LED illumination lamp.
The above-mentioned microscope illuminator with condensing angle regulatory function, described installation end lateral wall is provided with screw thread, sliding support and diffusing transmission ring and threadeds with installation end lateral wall.
Further,
Described fixed support is evenly arranged with multiple first external part along radial direction, and described first external part end is provided with opening vertically, is provided with the first rotating shaft in opening, the through hole on the first rotating shaft traverse LED support bar;
Described sliding support is evenly arranged with second external part corresponding with the first external part quantity location of equal along radial direction, described second external part end is provided with opening vertically, the second rotating shaft it is provided with, the groove on the second rotating shaft traverse LED support bar in opening.
Further, described sliding support is by screwing end, and bearing link, and non-screw end composition, the second external part is positioned at and non-screws end.
Further, described diffusing transmission ring circumferentially part is divided into identical multiple cycles, and amount of cycles is identical with the first external part quantity, includes the unit that multiple transmitance is different in each cycle.
More than having the microscope illuminator of condensing angle regulatory function, described diffusing transmission hoop measured object direction bending, the normal vector of curved surface is equidirectional with LED support bar.
Further, diffusing transmission ring is r with optical axis distance3Point, and this meets following relation along the angle �� of radial direction Yu horizontal direction:
r 3 = r 1 - r 1 - r 2 h 1 ( h 1 + h 2 )
α = a r c t a n r 1 - r 2 h 1
Wherein,
r1It it is the distance of the first rotating shaft distance optical axis;
r2It it is the distance of the second rotating shaft distance optical axis;
h1For distance along optical axis direction of fixed support and sliding support;
h2For distance along optical axis direction of sliding support and diffusing transmission ring;
And r1> r2, h1+h2For definite value.
Beneficial effect:
The first, the top of installation end is provided with the fixed support along optical axis direction non-displacement, the middle part of installation end is provided with the sliding support moved along optical axis direction, LED support bar is connected with fixed support and sliding support rotating shaft respectively, LED support bar rotates relative to fixed support, rotating relative to sliding support and slide, this structural design, by moving sliding support along optical axis direction, realize the adjustment of LED support bar angles, and then adjust LED light source direction of illumination;
The second, the bottom of installation end is provided with the diffusing transmission ring moved along optical axis direction, this structural design, in the function that cooperated with LED light source irradiation direction can adjust, it is capable of the outgoing beam to LED light source and carries out diffusing transmission, weaken the directivity of LED light source, and then increase illumination uniformity, the problem overcoming Gao Guang, dark space, improve microscopical image quality.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention has the microscope illuminator of condensing angle regulatory function.
Fig. 2 is support bracket fastened structural representation.
Fig. 3 is the structural representation of sliding support.
Fig. 4 is the structural representation that LED support bar and the first rotating shaft and the second rotating shaft match.
Fig. 5 is the structural representation of sliding support specific embodiment four.
Fig. 6 is the structural representation of diffusing transmission ring.
Fig. 7 realizes the parameter designing figure that illumination uniformity is best.
In figure: 1 object lens, 2 installation ends, 3 fixed supports, 31 first external parts, 32 first rotating shafts, 4 sliding supports, 41 second external parts, 42 second rotating shafts, 43 screw end, 44 bearing links, 45 non-screw end, 5 diffusing transmission rings, 6LED support bar, 61 through holes, 62 grooves, 7LED illuminating lamp.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Specific embodiment one
The microscope illuminator with condensing angle regulatory function of the present embodiment, structural representation is as shown in Figure 1. This microscope illuminator includes the installation end 2 being installed on microscope objective 1; The top of described installation end 2 is provided with the fixed support 3 along optical axis direction non-displacement; The middle part of installation end 2 is provided with the sliding support 4 moved along optical axis direction;The bottom of installation end 2 is provided with the diffusing transmission ring 5 moved along optical axis direction; LED support bar 6 is connected with fixed support 3 and sliding support 4 rotating shaft respectively, and LED support bar 6 rotates relative to fixed support 3, rotates relative to sliding support 4 and slides, LED support bar 6 be arranged below LED illumination lamp 7.
The microscope illuminator with condensing angle regulatory function of the present embodiment, it is possible to select installation end 2 is provided with tapped through hole, by object lens 1 driving screws, it is achieved installation end 2 relative object lens 1 are fixing.
Specific embodiment two
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment one, described installation end 2 lateral wall of further restriction is provided with screw thread, sliding support 4 and diffusing transmission ring 5 and threadeds with installation end 2 lateral wall.
This structural design, it is possible to achieve by screwing sliding support 4, it is achieved sliding support 4 moves along optical axis direction; By screwing diffusing transmission ring 5, it is achieved diffusing transmission ring 5 moves along optical axis direction.
Specific embodiment three
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment two, further defines that
Described fixed support 3 is evenly arranged with multiple first external part 31 along radial direction, and described first external part 31 end is provided with opening vertically, is provided with the first rotating shaft 32 in opening, the through hole 61 on the first rotating shaft 32 traverse LED support bar 6;
Described sliding support 4 is evenly arranged with second external part 41 corresponding with the first external part 31 quantity location of equal along radial direction, described second external part 41 end is provided with opening vertically, the second rotating shaft 42 it is provided with, the groove 62 on the second rotating shaft 42 traverse LED support bar 6 in opening.
In the present embodiment, the quantity of the first external part 31 and the second external part 41 is all for 4.
Wherein, fixed support 3 structural representation as in figure 2 it is shown, sliding support 4 structural representation as it is shown on figure 3, the structural representation that matches with the first rotating shaft 32 and the second rotating shaft 42 of LED support bar 6 as shown in Figure 4.
This structural design, it is possible to achieve when screwing sliding support 4, sliding support 4 moves along optical axis direction, and then adjusts the angle of LED support bar 6, namely changes light angle.
Specific embodiment four
Based on specific embodiment three, realize by screwing sliding support 4 so that sliding support 4 moves along optical axis direction, LED support bar 6 is limited by the structure of fixed support 3 simultaneously, can't rotate with sliding support 4, it is thus desirable to a kind of structure of design, make sliding support 4 both include making it screw the part of movement, include again not moving with sliding support 4 and rotate connect LED support bar 6 part. For said structure demand, devise the present embodiment.
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment three, further define that sliding support 4 is by screwing end 43, bearing link 44, and non-screwing end 45 composition, the second external part 41 is positioned at and non-screws end 45. As it is shown in figure 5, in Figure 5, hatched part is for screwing end 43 for the structural representation of the present embodiment sliding support 4.
Specific embodiment five
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment three, further define that diffusing transmission ring 5 circumferentially part is divided into identical multiple cycles, amount of cycles is identical with the first external part 31 quantity, includes the unit that multiple transmitance is different in each cycle.
This structural design, owing to being provided with the unit that multiple transmitance is different within multiple cycles, and each periodic structure is all identical, therefore it is possible not only to realize carrying out multiparameter selection according to demand, and may insure that the diffusing transmission effect of each LED illumination lamp 7 is all identical, and then guarantee the uniformity of illumination.
The structural representation of the present embodiment diffusing transmission ring 5 is as shown in Figure 6.
Specific embodiment six
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment three, specific embodiment four or specific embodiment five, further defining that diffusing transmission ring 5 bends to measured object direction, the normal vector of curved surface is equidirectional with LED support bar 6.
This structural design so that LED illumination lamp 7 vertical irradiation, to diffusing transmission ring 5, further ensures that the uniformity of illumination. Specific embodiment seven
The microscope illuminator with condensing angle regulatory function of the present embodiment, on the basis of specific embodiment six, further defines that on diffusing transmission ring 5 with optical axis distance to be r3Point, and this meets following relation along the angle �� of radial direction Yu horizontal direction:
r 3 = r 1 - r 1 - r 2 h 1 ( h 1 + h 2 )
α = a r c t a n r 1 - r 2 h 1
Wherein,
r1It it is first rotating shaft 32 distance apart from optical axis;
r2It it is second rotating shaft 42 distance apart from optical axis;
h1For distance along optical axis direction of fixed support 3 and sliding support 4;
h2For distance along optical axis direction of sliding support 4 and diffusing transmission ring 5;
And r1> r2, h1+h2For definite value.
This parameter designing so that as long as the distance guaranteed between fixed support 3 and diffusing transmission ring 5 keeps h1+h2Constant, no matter how to move sliding support 4, can ensure that LED illumination lamp 7 vertical irradiation is to diffusing transmission ring 5, provides a set of solution for realizing illumination uniformity the best, as shown in Figure 7.

Claims (7)

1. a microscope illuminator with condensing angle regulatory function, it is characterised in that include the installation end (2) being installed on microscope objective (1); The top of described installation end (2) is provided with the fixed support (3) along optical axis direction non-displacement; The middle part of installation end (2) is provided with the sliding support (4) moved along optical axis direction; The bottom of installation end (2) is provided with the diffusing transmission ring (5) moved along optical axis direction; LED support bar (6) is connected with fixed support (3) and sliding support (4) rotating shaft respectively, LED support bar (6) rotates relative to fixed support (3), relative to sliding support (4) rotate and slide, LED support bar (6) be arranged below LED illumination lamp (7).
2. the microscope illuminator with condensing angle regulatory function according to claim 1, it is characterized in that, described installation end (2) lateral wall is provided with screw thread, sliding support (4) and diffusing transmission ring (5) and threadeds with installation end (2) lateral wall.
3. the microscope illuminator with condensing angle regulatory function according to claim 2, it is characterised in that
Described fixed support (3) is evenly arranged with multiple first external part (31) along radial direction, described first external part (31) end is provided with opening vertically, the first rotating shaft (32) it is provided with, the through hole (61) in the first rotating shaft (32) traverse LED support bar (6) in opening;
Described sliding support (4) is evenly arranged with second external part (41) corresponding with the first external part (31) quantity location of equal along radial direction, described second external part (41) end is provided with opening vertically, the second rotating shaft (42) it is provided with, the groove (62) in the second rotating shaft (42) traverse LED support bar (6) in opening.
4. the microscope illuminator with condensing angle regulatory function according to claim 3, it is characterized in that, described sliding support (4) is by screwing end (43), bearing link (44), and non-screwing end (45) composition, the second external part (41) is positioned at and non-screws end (45).
5. the microscope illuminator with condensing angle regulatory function according to claim 3, it is characterized in that, described diffusing transmission ring (5) circumferentially part is divided into identical multiple cycles, amount of cycles is identical with the first external part (31) quantity, includes the unit that multiple transmitance is different in each cycle.
6. the microscope illuminator with condensing angle regulatory function according to claim 3,4 or 5, it is characterised in that described diffusing transmission ring (5) bends to measured object direction, the normal vector of curved surface is equidirectional with LED support bar (6).
7. the microscope illuminator with condensing angle regulatory function according to claim 6, it is characterised in that diffusing transmission ring (5) is gone up and optical axis distance is r3Point, and this meets following relation along the angle �� of radial direction Yu horizontal direction:
r 3 = r 1 - r 1 - r 2 h 1 ( h 1 + h 2 )
α = arctan r 1 - r 2 h 1
Wherein,
r1It it is the distance of the first rotating shaft (32) distance optical axis;
r2It it is the distance of the second rotating shaft (42) distance optical axis;
h1For distance along optical axis direction of fixed support (3) and sliding support (4);
h2For distance along optical axis direction of sliding support (4) and diffusing transmission ring (5);
And r1> r2, h1+h2For definite value.
CN201610202358.1A 2016-04-01 2016-04-01 A kind of microscope illuminator with condensing angle regulatory function Expired - Fee Related CN105652428B (en)

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Application Number Priority Date Filing Date Title
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CN105652428B CN105652428B (en) 2018-03-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975672A1 (en) * 2007-03-28 2008-10-01 Olympus Corporation Scanning microscope and adjusting method for the same
JP2009092868A (en) * 2007-10-05 2009-04-30 Nikon Corp Optical device and controller
CN201725082U (en) * 2010-07-19 2011-01-26 苏州捷美医疗器械有限公司 Double-channel LED combined illuminating system
CN202548054U (en) * 2011-12-31 2012-11-21 广东工业大学 High-precision fluorescence anisotropy microscopic imaging device
CN205427295U (en) * 2016-04-01 2016-08-03 哈尔滨理工大学 Microscope lighting device with spotlight angle regulatory function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975672A1 (en) * 2007-03-28 2008-10-01 Olympus Corporation Scanning microscope and adjusting method for the same
JP2009092868A (en) * 2007-10-05 2009-04-30 Nikon Corp Optical device and controller
CN201725082U (en) * 2010-07-19 2011-01-26 苏州捷美医疗器械有限公司 Double-channel LED combined illuminating system
CN202548054U (en) * 2011-12-31 2012-11-21 广东工业大学 High-precision fluorescence anisotropy microscopic imaging device
CN205427295U (en) * 2016-04-01 2016-08-03 哈尔滨理工大学 Microscope lighting device with spotlight angle regulatory function

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