CN114719225A - Lens processing method for shadowless lamp lens, lens structure and shadowless lamp - Google Patents
Lens processing method for shadowless lamp lens, lens structure and shadowless lamp Download PDFInfo
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- CN114719225A CN114719225A CN202210366520.9A CN202210366520A CN114719225A CN 114719225 A CN114719225 A CN 114719225A CN 202210366520 A CN202210366520 A CN 202210366520A CN 114719225 A CN114719225 A CN 114719225A
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- 238000003672 processing method Methods 0.000 title claims abstract description 27
- 230000008033 biological extinction Effects 0.000 claims abstract description 47
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000012538 light obscuration Methods 0.000 claims abstract description 9
- 238000005286 illumination Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000002834 transmittance Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 208000003464 asthenopia Diseases 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/20—Lighting for medical use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a lens processing method for a lens of a shadowless lamp, a lens structure and the shadowless lamp. The lens processing method for the shadowless lamp lens comprises the following steps: providing an illuminating piece, and starting the illuminating piece to form an operation field light spot and a stray light ring surrounding the operation field light spot on a projection surface; acquiring position parameters of the stray aperture; providing a lens structure, arranging the lens structure between the illuminating piece and the projection surface, and processing the lens structure according to the position parameters to form a light extinction part; the extinction part is located on an optical path forming the stray aperture and is used for offsetting the stray aperture. Compared with the traditional lens processing method, when the lens processing method of the embodiment is adopted, the extinction part for eliminating the astigmatic ring can be formed on the lens structure, and when the lens structure is matched with the illuminating piece, the illuminating effect of the illuminating piece can be improved.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a lens processing method for a shadowless lamp lens, a lens structure and a shadowless lamp.
Background
Current shadowless lamp is when clinical use, can appear leading to the stray light circle of light and shade change around the art field facula, and the change of the power of light can let the doctor produce visual fatigue to influence doctor's attention and fatigue degree. The main reason for this kind of problem lies in, in order to guarantee the illuminance of art field facula, need use powerful LED lamp pearl usually, the great LED lamp pearl of luminous area promptly, because the size of lamp pearl lens receives the restriction of lamp body, can't possess great volume, this just leads to the LED light source in fact to be equivalent to and comprises a large amount of pointolite, and the lens that matches with it only has an optical profile face, consequently always there is the luminous point of partial position not to receive the constraint of target surface on optical profile face, thereby produce the miscellaneous light ring that looses of large angle, influence the result of use.
Therefore, the above problems must be improved to improve the current situation.
Disclosure of Invention
The invention provides a lens processing method for a lens of a shadowless lamp, a lens structure and the shadowless lamp, which are used for solving the problem that the use effect is influenced because a stray aperture is easy to appear when the traditional shadowless lamp is used.
The invention provides a lens processing method for a shadowless lamp lens, which comprises the following steps:
providing an illuminating piece, and starting the illuminating piece to form an operation field light spot and a stray light ring surrounding the operation field light spot on a projection surface;
acquiring position parameters of the stray aperture;
providing a lens structure, arranging the lens structure between the illuminating piece and the projection surface, and processing the lens structure according to the position parameters to form a light extinction part; the extinction part is located on an optical path forming the stray aperture and is used for offsetting the stray aperture.
According to one embodiment of the invention, the number of the extinction part is multiple, and the extinction parts are arranged at intervals in the radial direction of the surgical field facula.
According to one embodiment of the invention, the mirror structure comprises a convex lens.
According to one embodiment of the invention, the convex lens is a plano-convex lens.
According to one embodiment of the invention, the lens structure is a total internal reflection lens or a reflector cup.
According to one embodiment of the invention, the distance between the illuminating piece and the projection surface is 500-1500 mm.
According to an embodiment of the present invention, the step of providing a lens structure between the illuminating element and the projection surface comprises the steps of:
providing a lens structure and a point light source, wherein the point light source forms an emergent light spot covering the stray aperture on the projection surface through the lens structure;
calculating the preset position of the stray aperture passing through the light path of the lens structure according to the position parameter;
and processing the preset position of the lens structure to form a light extinction part.
According to one embodiment of the invention, the orthographic projection of the excident light spot on the projection surface covers the stray aperture on the outermost circle.
The invention also provides a lens structure which is prepared by adopting the lens processing method.
The invention also provides a shadowless lamp which comprises an illuminating piece and the lens structure, wherein the lens structure is arranged on the light path of the illuminating piece.
The embodiment of the invention has the following beneficial effects:
according to the lens processing method for the shadowless lamp lens in the embodiment, the extinction part is arranged at the corresponding position on the lens structure according to the position parameter of the stray aperture generated by the lighting piece, the extinction part can block the light path originally generating the stray aperture, and the lens structure is matched with the lighting piece to achieve the purpose of eliminating the stray aperture.
Compared with the traditional lens processing method, when the lens processing method is adopted, the extinction part for eliminating the impurity-eliminating aperture can be formed on the lens structure, and when the lens structure is matched with the illuminating piece, the illuminating effect of the illuminating piece can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic view of a light spot of an illumination member in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a light spot after a lens structure is matched with a point light source according to an embodiment of the present invention;
FIG. 3 is a perspective view of a lens construction according to an embodiment of the invention;
FIG. 4 is a schematic view of a spot of light after a lens structure is engaged with the illuminator in an embodiment of the invention;
FIG. 5 is a schematic flow chart of a lens processing method according to an embodiment of the present invention;
FIG. 6 is an illuminance distribution diagram of the surgical field light spots and the stray light ring of the illumination element in an embodiment of the present invention;
FIG. 7 is a diagram illustrating an illuminance distribution of a lens structure in combination with a point light source according to an embodiment of the present invention;
FIG. 8 is a graph of the illumination distribution after the lens structure and the illuminator are engaged in accordance with an embodiment of the invention;
FIG. 9 is a schematic flow chart of a method for processing a lens to create a geometric optical model according to an embodiment of the present invention;
reference numerals:
10. a lighting assembly; 100. a lens structure; 110. a extinction section; 120. a highlight portion; 130. a diffusion portion; 200. an illuminating member; 210. a first incident light; 220. a second incident light; 300. surgical field light spots; 400. stray light ring; 500. a point light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 5, an embodiment of the present invention provides a lens processing method for a shadowless lamp lens, which includes the following steps:
step S100, providing an illuminating piece 200, and starting the illuminating piece 200 to form a surgical field light spot 300 and a stray light ring 400 surrounding the surgical field light spot 300 on a projection surface;
step S200, acquiring position parameters of the stray aperture 400;
step S300, providing the lens structure 100, arranging the lens structure between the illuminating element 200 and the projection surface, and processing the lens structure 100 to form the extinction part 110 according to the position parameters; the extinction part 110 is located on the optical path forming the stray aperture 400 and is used for offsetting the stray aperture 400.
According to the lens processing method for the shadowless lamp lens in the above embodiment, according to the position parameter of the illuminating piece 200 generating the stray aperture 400, the extinction part 110 is arranged at the corresponding position on the lens structure 100, the extinction part 110 can block the light path originally generating the stray aperture 400, and the lens structure 100 and the illuminating piece 200 are matched to achieve the purpose of eliminating the stray aperture 400.
Compared with the conventional lens processing method, when the lens processing method of the embodiment is adopted, the extinction portion 110 for eliminating the astigmatism ring 400 can be formed on the lens structure 100, and when the lens structure 100 is matched with the illuminating piece 200, the illuminating effect of the illuminating piece 200 can be improved.
Specifically, the above "projection surface" means that the illuminating element 200 can form an illumination range at the projection surface and cover the object to be illuminated after the optical path adjustment is performed by the lens structure 100; of course, the projection plane may be a substantial plane or an uneven plane, such as an operating table on which an object to be illuminated is placed, the projection plane may be a surface of the object to be illuminated, and the distance between the illuminating element 200 and the projection plane is only used for explaining the illumination position of the illuminating element 200, and is not limited herein.
Referring to fig. 3, in an embodiment, the number of the extinction portions 110 is plural, and the extinction portions 110 are spaced apart from each other in a radial direction of the surgical field spot 300.
With this arrangement, when the stray light rings 400 formed by the illuminating device 200 are multiple sets, as shown in fig. 1 and 6, the multiple sets of stray light rings 400 are arranged to surround the surgical field light spots 300 and are spaced from each other, and by arranging the plurality of extinction parts 110 to correspond to the stray light rings 400 one by one, the extinction parts 110 can block each light path originally generating the stray light rings 400, thereby achieving the purpose of eliminating the stray light rings 400.
Specifically, the mirror structure 100 includes a convex lens.
It can be understood that by providing the lens structure 100 in the form of a convex lens, when the distance between the illuminating device 200 and the center of the lens structure 100 is not greater than the focal length, as shown in fig. 2, the lens structure 100 can make the light emitted from the illuminating device 200 emit in a direction parallel to the optical axis or in a diffused manner, so as to achieve the effect of improving the illumination brightness or the illumination range.
Referring to fig. 2, in an embodiment, the convex lens is a plano-convex lens, and the convex surface of the plano-convex lens is located on the side away from the illuminating element 200. Compared with a biconvex lens, the planoconvex lens can not only make the structure of the illuminating element 200 and the structure of the lens structure 100 compact, but also improve the illuminating effect.
In other embodiments, the optic structure 100 is a total internal reflection lens or a reflective cup.
In particular, a total internal reflection lens (TIR lens) may be made using fresnel lens principles, and the lens structure 100 mainly provides refraction for the illuminator 200; when the lens structure 100 includes a reflective cup, the reflective cup is disposed on a side of the illuminating element 200 away from the projection surface, the lens structure 100 mainly provides a reflection function for the illuminating element 200, and the extinction part 110 is disposed on the reflective surface of the reflective cup to achieve an extinction function, which is not described herein again.
Referring to fig. 1, in an embodiment, the distance between the illuminating element 200 and the projection surface is 500mm and 1500 mm.
L in the figure 1 is defined as the distance between the center of the lighting element 200 and the projection plane, L is more than or equal to 500mm and less than or equal to 1500mm, and L can be 500mm, 800mm, 1000mm and 1500mm specifically; it should be noted that the distance between the illumination device 200 and the projection plane may be a distance dimension when a geometric optical model is established, or may be a distance between the illumination device 200 and a part to be irradiated when the shadowless lamp is used. In other embodiments, the distance between the illuminating element 200 and the projection surface may also be adjusted according to design requirements, which is not described herein.
It should be noted that, in the using process of the shadowless lamp, the distance between the illuminating part 200 and the projection surface is 500-.
As shown in fig. 6 to 8, in particular, in one embodiment, the radius of the surgical field spot 300 is larger than 150 mm.
From this setting, through the distance between control illumination piece 200 and the plane of projection, or the distance between lens structure 100 and illumination piece 200, can realize adjusting the effect of art field facula 300 scope to make art field facula 300 can cover and wait to shine the position and satisfy the operation demand.
Referring to fig. 4, fig. 5 and fig. 9, in an embodiment, the step S300 may further include a process of establishing a geometric optical model, specifically including the following steps:
step S301, providing a lens structure 100 and a point light source 500, wherein the point light source 500 forms an emergent light spot covering the stray aperture 400 on a projection surface through the lens structure 100;
step S302, calculating the preset position of the stray aperture 400 passing through the light path of the lens structure 100 according to the position parameters;
step S303 is to form the extinction part 110 at a predetermined position of the lens structure 100.
In the present embodiment, the position parameters of the stray light ring 400 include, but are not limited to, the inner diameter, the outer diameter, the width, and the like of the stray light ring 400, and the corresponding position of the extinction part 110 on the lens structure 100 is calculated by the acquired position parameters of the stray light ring 400, so that the extinction part 110 can cover the optical path of the stray light ring 400.
As shown in fig. 7 and 8, in particular, the light transmittance of the lens structure 100 at the light extinction portion 110 may be zero, so that the light originally generating the stray aperture 400 can be completely shielded, and the outward illuminance of the surgical field light spots 300 is uniform and excessive, so that the light of the illumination assembly 10 is softer and more comfortable.
Of course, in this embodiment, the light emitted by the illumination unit 200 for forming the surgical field light spot 300 can be used as the point light source 500 of the lens structure 100, or an additional point light source 500 can be installed to achieve the design purpose when the geometric optical model is established, which is not limited herein.
Specifically, the orthographic projection of the emergent light spot on the projection surface covers the stray light ring 400 at the outermost circle.
It can be understood that, in the step of establishing the geometric optical model, the orthographic projection of the emergent light spot on the projection surface is covered by the stray light ring 400 at the outermost circle, so that the geometric optical model can be ensured to be consistent with the actual light paths of the lens structure 100 and the illuminating element 200, and the arrangement of the extinction part 110 can be accurately positioned, so as to ensure the extinction effect of the extinction part 110.
Further, referring to fig. 2 and 3, the present invention also provides a lighting assembly 10 for a shadowless lamp, which comprises a lens structure 100 and a lighting element 200, wherein the lens structure 100 can be prepared by the lens processing method in any one of the above embodiments; the illumination device 200, the light emitted by the illumination device 200 includes a first incident light 210 and a second incident light 220, the first incident light 210 forms a surgical field light spot 300 on the projection surface, and the second incident light 220 can form a stray light ring 400 surrounding the surgical field light spot 300 on the projection surface; the lens structure 100 corresponds to the illuminating element 200, the lens structure 100 is provided with a extinction part 110, and the extinction part 110 is arranged on the optical path of the second incident light 220 for eliminating the astigmatic stop 400.
When the illumination assembly 10 of the present embodiment is used, the first incident light 210 emitted by the illumination element 200 forms the surgical field light spot 300 through the lens structure 100 for surgical illumination, and compared to the conventional shadowless lamp, the lens structure 100 in the present application can precisely fill the light path originally generating the stray light ring 400 by matching the extinction portion 110 with the second incident light 220 emitted by the illumination element 200, so as to eliminate the stray light ring 400.
In the illumination assembly 10 of the present embodiment, by arranging the lens structure 100 having the extinction portion 110 to cooperate with the illumination member 200, the light beam that originally generates the stray light ring 400 can be extinguished on the light path of the illumination member 200, and on the premise of ensuring the illumination intensity of the surgical field light spot 300 of the illumination assembly 10, the stray light ring 400 is eliminated, so that the brightness distribution of the illumination assembly 10 is ensured, and the use effect is good.
In this embodiment, the illuminating device 200 is a combination structure of an illuminating lamp and a main lens, and when the illuminating device 200 is combined with the lens structure 100, light emitted by the illuminating lamp is transmitted through the main lens and the lens structure 100 in sequence; in other embodiments, the main lens may be eliminated, and the illuminating lamp may be directly matched with the lens structure 100, which is not limited herein.
Specifically, referring to fig. 3, the lens structure 100 further includes a highlight portion 120 and a diffusing portion 130, the diffusing portion 130 is disposed around the highlight portion 120, the extinction portion 110 is disposed on the surface of the diffusing portion 130, the first incident light 210 forms the surgical field spot 300 through the highlight portion 120, and the second incident light 220 forms diffused light through the diffusing portion 130; the light transmittance of the extinction portion 110 is smaller than the light transmittance of the diffusion portion 130 and the highlight portion 120.
With this arrangement, after the second incident light 220 passes through the extinction part 110, since the light transmittance of the extinction part 110 is smaller than that of the highlight part 120 and the diffusion part 130, the second incident light 220 is blocked by the extinction part 110 to block the conduction of the second incident light 220, thereby reducing or eliminating the possibility that the second incident light 220 generates the stray aperture 400 on the projection surface; of course, in a preferred embodiment, the light transmittance at the light extinction portion 110 may be zero, i.e. the second incident light 220 is completely blocked, so as to eliminate the stray light ring 400 that would otherwise be generated by the illumination element 200.
In one embodiment, the extinction portion 110 is a frosted structure.
It can be understood that, by providing the extinction part 110 with the frosted structure, when the second incident light 220 is transmitted to the extinction part 110, the frosted extinction part 110 can obstruct or block the transmission of light; in other embodiments, the light extinction part 110 may also be coated with a material with low light transmittance, processed into an anisotropic structure, or the like to achieve the light extinction effect.
Referring to fig. 3, in an embodiment, the number of the extinction portions 110 is plural, and the extinction portions 110 are spaced apart from each other in a radial direction of the surgical field spot 300.
It is understood that when the illuminator 200 forms the stray aperture 400, generally the number of stray apertures 400 is more than one, and when there are a plurality of stray apertures 400, the plurality of stray apertures 400 all surround the surgical field spot 300 and are spaced radially from the surgical field spot 300; by providing a plurality of extinction portions 110 arranged at intervals in the radial direction of the surgical field spot 300, the extinction portions 110 can be in one-to-one correspondence with the stray light rings 400.
The invention further provides a shadowless lamp, which comprises an illuminating piece 200 and the illuminating assembly in any one of the embodiments, wherein the lens structure 100 is arranged on the optical path of the illuminating piece 200.
In the shadowless lamp of this embodiment, by providing the illumination assembly 10 in any of the above embodiments, the influence of the stray light ring 400 can be eliminated on the premise of ensuring the illumination intensity of the surgical field light spot 300, so as to improve the illumination effect.
Further, the present invention also provides a medical device comprising the illumination assembly 10 of any of the above embodiments, or the shadowless lamp of any of the above embodiments.
In this embodiment, by adopting the lens structure 100 and the illuminating element 200 in any one of the above embodiments to cooperate in the medical device, the lens structure 100 can perform extinction processing on the light beam originally generating the stray light ring 400 on the light path of the illuminating element 200, and on the premise of ensuring the illumination intensity of the surgical field light spot 300 of the illuminating assembly 10, the stray light ring 400 is eliminated, so as to ensure the brightness distribution of the medical device during illumination, and improve the illumination effect. In particular, the medical device includes, but is not limited to, an operating table.
In the description of the embodiments of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A lens processing method for a shadowless lamp lens is characterized by comprising the following steps:
providing an illuminating piece, and starting the illuminating piece to form an operation field light spot and a stray light ring surrounding the operation field light spot on a projection surface;
acquiring position parameters of the stray aperture;
providing a lens structure, arranging the lens structure between the illuminating piece and the projection surface, and processing the lens structure according to the position parameters to form a light extinction part; the extinction part is located on an optical path forming the stray aperture and is used for offsetting the stray aperture.
2. The lens processing method according to claim 1, wherein the number of the extinction portions is plural, and the plural extinction portions are provided at intervals in a radial direction of the surgical field spot.
3. The ophthalmic lens processing method of claim 1, wherein the ophthalmic lens structure comprises a convex lens.
4. The method of claim 3, wherein the convex lens is a plano-convex lens.
5. The lens processing method of claim 1, wherein the lens structure is a total internal reflection lens or a reflector cup.
6. The lens processing method as claimed in claim 1, wherein the distance between the illuminating element and the projection surface is 500-1500 mm.
7. The lens processing method of any one of claims 1 to 6, wherein the step of providing a lens structure between the illumination member and the projection surface comprises the steps of:
providing a lens structure and a point light source, wherein the point light source forms an emergent light spot covering the stray aperture on the projection surface through the lens structure;
calculating the preset position of the stray aperture passing through the light path of the lens structure according to the position parameter;
and processing the preset position of the lens structure to form a light extinction part.
8. The lens processing method of claim 7, wherein the orthographic projection of the excident light spot on the projection surface covers the outermost circle of the stray aperture.
9. A lens structure prepared by the lens processing method of any one of claims 1 to 8.
10. A shadowless lamp comprising an illuminating element and the lens structure of claim 9, the lens structure being positioned in the optical path of the illuminating element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210366520.9A CN114719225A (en) | 2022-04-08 | 2022-04-08 | Lens processing method for shadowless lamp lens, lens structure and shadowless lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210366520.9A CN114719225A (en) | 2022-04-08 | 2022-04-08 | Lens processing method for shadowless lamp lens, lens structure and shadowless lamp |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205678479U (en) * | 2016-05-30 | 2016-11-09 | 众普森科技（株洲）有限公司 | A kind of luminous intensity distribution unit and luminous intensity distribution assembly |
| CN206523682U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Camera lens module |
| CN108826084A (en) * | 2018-05-03 | 2018-11-16 | 蔡弘翊 | A kind of varifocal light projector device |
| CN108980778A (en) * | 2017-05-30 | 2018-12-11 | 松下知识产权经营株式会社 | Lens and luminaire |
| CN114089527A (en) * | 2020-08-06 | 2022-02-25 | 三营超精密光电(晋城)有限公司 | Shading sheet and optical lens |
-
2022
- 2022-04-08 CN CN202210366520.9A patent/CN114719225A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205678479U (en) * | 2016-05-30 | 2016-11-09 | 众普森科技（株洲）有限公司 | A kind of luminous intensity distribution unit and luminous intensity distribution assembly |
| CN206523682U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Camera lens module |
| CN108980778A (en) * | 2017-05-30 | 2018-12-11 | 松下知识产权经营株式会社 | Lens and luminaire |
| CN108826084A (en) * | 2018-05-03 | 2018-11-16 | 蔡弘翊 | A kind of varifocal light projector device |
| CN114089527A (en) * | 2020-08-06 | 2022-02-25 | 三营超精密光电(晋城)有限公司 | Shading sheet and optical lens |
Non-Patent Citations (1)
| Title |
|---|
| 崔桂华: "眼底照相机光学系统中杂光和鬼像的控制", 眼底照相机光学系统中杂光和鬼像的控制, vol. 26, no. 3, 20 March 2000 (2000-03-20), pages 139 - 141 * |
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