CN218379257U - Prism refraction and reflection type LED operation shadowless lamp optical system - Google Patents
Prism refraction and reflection type LED operation shadowless lamp optical system Download PDFInfo
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- CN218379257U CN218379257U CN202222954410.2U CN202222954410U CN218379257U CN 218379257 U CN218379257 U CN 218379257U CN 202222954410 U CN202222954410 U CN 202222954410U CN 218379257 U CN218379257 U CN 218379257U
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Abstract
The application discloses prism catadioptric LED operation shadowless lamp optical system includes: a plurality of optical components; each optical component comprises a prism structure and an LED; the bottom of the prism structure is provided with an incident groove, and the top of the prism structure is provided with an emergent groove opposite to the incident groove; the bottom wall of the prism structure is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall and the notch of the incident groove; the LED is positioned at the notch of the incident groove; the circuit board carrying the LED is fixed with the bottom foot. Above-mentioned prism catadioptric LED shadowless lamp optical system that performs operation utilizes the prism structure as optical element, uses with the LED cooperation, the light that each LED sent can form a bundle of light columns after the prism structure that corresponds takes place to reflect and refracts and beat on the operating table, different light columns that different LED light-emitting formed mutually support, can realize better shadowless effect, and the optical component structure volume of constituteing by prism structure and LED can not be too big, make the convenient removal of operating lamp.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a prism refraction and reflection type LED operation shadowless lamp optical system.
Background
With the innovation and the change of the illumination field, the incandescent lamp and the halogen lamp cannot meet the requirements of high illumination and low power consumption in the operating room. The life expiration is judged by that the lumen maintenance rate of the Light-emitting Diode (LED) is reduced to below 70%, the average life of the halogen lamp is 1000 hours, and the life of the LED can reach more than 50000 hours, namely, the LED can work for more than 5 years under a 24-hour continuous illumination state, and is 50 times or more of the life of the halogen lamp.
Based on this, the LED operation shadowless lamp has been on stage. However, because the research and development depth is shallow, the optical design of the existing LED operation shadowless lamp product cannot realize a good shadowless effect, the structure is too thick, the size is large, the illumination is insufficient, and the laminar flow effect of an operating room is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a prism refraction and reflection type LED operating shadowless lamp optical system, which can realize better shadowless effect and is convenient for moving the operating lamp. The specific scheme is as follows:
a prismatic catadioptric LED surgical shadowless lamp optical system comprising: a plurality of optical components; each of the optical components includes a prism structure and an LED; wherein the content of the first and second substances,
the bottom of the prism structure is provided with an incident groove, and the top of the prism structure is provided with an emergent groove opposite to the incident groove;
the bottom wall of the prism structure is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall and the notch of the incident groove;
the LED is positioned at the notch of the incident slot; and the circuit board carrying the LED is fixed with the bottom foot.
Preferably, in the above prism catadioptric LED surgical shadowless lamp optical system provided by the embodiment of the present invention, all the optical components are divided into a plurality of optical modules according to a set rule;
all the optical modules are rotationally and symmetrically distributed by taking a main optical axis of the optical system as a center; or the like, or a combination thereof,
all the optical modules are symmetrically distributed by taking any straight line on a plane perpendicular to a main optical axis of the optical system as a symmetry axis.
Preferably, in the above prism catadioptric LED surgical shadowless lamp optical system provided by the embodiment of the present invention, all the LEDs included in each optical module individually emit light through different angles of the prism structure.
Preferably, in the above prism refraction and reflection type LED operating shadowless lamp optical system provided by an embodiment of the present invention, all the LEDs included in each optical module are different from each other in spot size and central illuminance of illumination at a set distance from the front surface of the optical system.
Preferably, in the above prism refraction and reflection type LED operating shadowless lamp optical system provided by the embodiment of the present invention, all included angles between the prism structure and the optical system main optical axis in the vertical direction are not greater than 10 °.
Preferably, in the above prism refraction and reflection type LED optical system for surgical shadowless lamp provided by the embodiment of the present invention, the LEDs are divided into cold white LEDs and warm white LEDs;
the cold white LED is driven and controlled by a first constant voltage circuit or a first constant current circuit;
the warm white LED is driven and controlled by a second constant voltage circuit or a second constant current circuit.
Preferably, in the above prism catadioptric LED surgical shadowless lamp optical system provided by the embodiment of the present invention, the total thickness of the optical system is not greater than 4cm.
Preferably, in the above prism catadioptric LED surgical shadowless lamp optical system provided by the embodiment of the present invention, the bottom of the LED and the notch of the incident groove are located on the same horizontal plane.
According to the above technical scheme, the utility model provides a prism refraction and reflection formula LED operation shadowless lamp optical system, include: a plurality of optical components; each optical component comprises a prism structure and an LED; the bottom of the prism structure is provided with an incident groove, and the top of the prism structure is provided with an emergent groove opposite to the incident groove; the bottom wall of the prism structure is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall and the notch of the incident groove; the LED is positioned at the notch of the incident groove; the circuit board carrying the LED is fixed with the bottom foot.
The utility model provides an above-mentioned prism refraction and reflection formula LED operation shadowless lamp optical system utilizes the prism structure as optical system's optical element, use with the LED cooperation, the light that each LED sent can form a branch of light column after the reflection takes place with the refraction through the prism structure that corresponds and beat on the operating table, the different light columns that different LED light-emitting formed mutually support, can realize better shadowless effect, and the optical component structure volume of constituteing by prism structure and LED can not be too big, make the convenient removal of operating lamp.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, it is obvious that the drawings in the description below are only embodiments of the present invention, and for those skilled in the art, other drawings or other forms, such as real drawings, similar structural drawings, etc., can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an orthographic perspective structure of an optical system of a prism refraction and reflection type LED operating shadowless lamp provided by an embodiment of the present invention;
fig. 2 is a schematic view of longitudinal arrangement of prism structures of an optical system of a prism refraction and reflection type LED operating shadowless lamp provided by an embodiment of the present invention;
fig. 3 is a schematic side view perspective view of an optical system of a prism refraction and reflection type LED operating shadowless lamp provided by an embodiment of the present invention;
fig. 4 is a schematic grouping diagram of optical modules of an optical system of a prism refraction and reflection type LED operating shadowless lamp provided in the embodiment of the present invention;
fig. 5 is a top perspective elevation view of a prism structure of an optical system of a prism catadioptric LED surgical shadowless lamp provided by an embodiment of the present invention;
fig. 6 is a bottom front perspective view of a prism structure of an optical system of a prism refraction and reflection type LED operating shadowless lamp provided by an embodiment of the present invention;
fig. 7 is a perspective structural schematic view of a prism structure of the prism refraction and reflection type LED operating shadowless lamp optical system provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a prism catadioptric LED operation shadowless lamp optical system, as shown in fig. 1 to 7, include: a plurality of optical components; each optical component includes a prism structure 1 and an LED 2; wherein, the first and the second end of the pipe are connected with each other,
the bottom of the prism structure 1 is provided with an incident groove 3, and the top is provided with an emergent groove 4 opposite to the incident groove 3;
the bottom wall 5 of the prism structure 1 is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall 5 and the notch 6 of the incidence groove 3;
the LED 2 is positioned at the notch 6 of the incident groove 3; the circuit board carrying the LED 2 is fixed with the bottom foot.
The embodiment of the utility model provides an among the above-mentioned prism refraction and reflection formula LED operation shadowless lamp optical system, utilize prism structure 1 as optical system's optical element, use with the cooperation of LED 2, the light that each LED 2 sent can form a bundle of light column after taking place to reflect and refract through prism structure 1 that corresponds and beat on the operating table, the different light columns that different LED 2 light-emitting formed mutually support, can realize better shadowless effect, and the optical component structure volume of constituteing by prism structure 1 and LED 2 can not be too big, make the convenient removal of operating lamp.
It should be noted that the operation shadowless lamp generally comprises a lamp body and a lamp bracket, the utility model discloses an optical system to in the lamp body designs for the illumination of operating room reduces the work area shadow that is caused by the local shelter from of operator to the at utmost. The utility model discloses in, optical component's the mode of arranging and quantity can be decided according to actual conditions, and the illuminance that needs to ensure the operating lamp is in the settlement within range to satisfy the operation demand.
In specific implementation, in the above prism catadioptric LED operation shadowless lamp optical system provided by the embodiment of the present invention, as shown in fig. 7, the bottom of the LED 2 and the notch 6 may reside in the same horizontal plane. Preferably, the LED 2 may be disposed at the center of the notch 6, so that the light emitted from the LED 2 can be better reflected and refracted in the prism structure 1, thereby performing the function of shaping the light path. Preferably, the notch 6 of the input slot 3 may be arranged to be flat for easy fabrication. In addition, the bottom wall of the prismatic structure 1 may be connected to the notch 6 of the entrance slot 3, and to the top of the prismatic structure 1.
In specific implementation, in the optical system of the prism refraction and reflection type LED operating shadowless lamp provided by the embodiment of the present invention, as shown in fig. 3, the total thickness of the optical system is not greater than 4cm. The thickness of the optical system reduces the thickness burden of the framework of the fixed optical system, the thickness and the weight of the operating lamp using the optical system can be reduced to the minimum as possible, the thickness of the lamp panel is small, the heat dissipation effect of the lamp cap is more beneficial, and the lamp panel is convenient to move.
When the embodiment of the present invention provides an optical system of the prism refraction and reflection type LED operation shadowless lamp, the included angle between the prism structure 1 and the main optical axis of the optical system in the vertical direction can be not greater than 10 °. It should be noted that the angle adjustment range of the LED and the prism structure can be adjusted according to actual situations, and is not limited herein.
Further, in the embodiment of the present invention, in the prism catadioptric LED surgical shadowless lamp optical system, all the optical components can be divided into N optical modules according to a predetermined rule (N ≥ 2,N is a positive integer); fig. 4 shows one of the optical modules. Specifically, all the optical modules may be rotationally symmetrically distributed around a main optical axis of the optical system; or, all the optical modules can be symmetrically distributed by taking any straight line on a plane perpendicular to the main optical axis of the optical system as a symmetry axis.
Taking fig. 1 and fig. 2 as an example, the present invention divides the optical system into six optical modules. The figure formed by the six optical modules is a rotationally symmetrical figure and is rotationally symmetrically distributed by taking the main optical axis of the optical system as the center.
In specific implementation, in the above prism refraction and reflection type LED operating shadowless lamp optical system provided in the embodiment of the present invention, the single light emitting angles of all LEDs 2 included in each optical module through the prism structure 1 may be different from each other, and the light columns formed by emitting light from different angles by a plurality of LEDs 2 are matched with each other, so as to provide a more excellent shadowless effect; and/or the size of light spots and the central illumination presented by the illumination at the set distance from the front surface of the optical system by all the LEDs 2 contained in each optical module can be different from each other, so that the central illumination enough for the operation process is provided to illuminate the body part of the patient. Preferably, the set distance may be selected to be 1m, and the length of the set distance may be determined according to practical situations, and is not limited herein.
In specific implementation, in the above prism catadioptric LED surgical shadowless lamp optical system provided by the embodiment of the present invention, the luminous flux of each LED 2 may not be less than 100lm. The prism structure 1 can be adapted to any divergence angle LED 2, the divergence angle of 120 degrees is the best, and when a single LED 2 works, round and full light spots can be observed at a set distance (such as 1 m) from the right front of the top of the prism structure.
Further, in the specific implementation, in the above prism refraction and reflection type LED operation shadowless lamp optical system provided in the embodiment of the present invention, the LED 2 can be divided into two types, i.e., a cold white LED and a warm white LED, according to different color temperatures; the cold white light LED is driven and controlled by a first constant voltage circuit or a first constant current circuit; the warm white light LED is driven and controlled by a second constant voltage circuit or a second constant current type circuit. The cold white light LED and the warm white light LED with high luminous flux are configured in this way, so that the light of the operating lamp using the optical system is ensured to restore the daylight color, the sufficient illumination can be achieved by fewer LEDs, and the energy-saving and environment-friendly LED operating system is energy-saving.
In practical application, an electrical designer can develop a constant voltage circuit or a constant current circuit to drive and control the corresponding LED 2, and the driving voltage value or the driving current value can be divided into a plurality of steps, such as ten steps.
In addition, in practical application, the illumination of the LEDs 2 at different positions can be adjusted by the control circuit, so that the operating states of the LEDs 2 at different positions can be adjusted, and the adjustment of the spot size, the color temperature, the illumination and the like of the surgical field can be realized. The power of the LEDs 2 at different positions can be adjusted by the electrical designer through self-designing an electrical control logic, and the size and the central illumination of a target light spot are changed, so that the shadowless effect is improved.
The utility model discloses in, the facula central illuminance that LED operation shadowless lamp optical system appears apart from optical system front surface settlement distance (as 1 m) department can reach 600Klx the highest. The design idea is free, and the operating lamp using the optical system is simple and easy to adjust the working state and convenient to operate.
Specifically, the control circuit is used for adjusting the illumination ratio of the cold white light LED and the warm white light LED, so that the color temperature of the optical system can be adjusted to be between 3500K and 5000K and can be divided into a plurality of gears, such as five gears. Or the control circuit is used for adjusting the LED 2 in each circle to change the driving current value or the driving voltage value, so that the light spot adjustment of the optical system of the LED operation shadowless lamp is realized, the size of the light spot is controlled to be divided into a plurality of gears, for example, three gears, and the size of the light spot is changed corresponding to the light spot of the optical system by 200-340 mm. Each level of illumination and color temperature corresponds to a set of DA output voltage values and a set of driving current values, although the specific form is not limited herein.
It should be noted that the utility model discloses a control circuit can freely design, has improved whole optical system's LED power adjustable range, has improved the upper limit of shadowless effect.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
To sum up, the embodiment of the utility model provides a pair of prism refraction and reflection formula LED operation shadowless lamp optical system, include: a plurality of optical components; each optical component comprises a prism structure and an LED; the bottom of the prism structure is provided with an incident groove, and the top of the prism structure is provided with an emergent groove opposite to the incident groove; the bottom wall of the prism structure is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall and the notch of the incident groove; the LED is positioned at the notch of the incident groove; the circuit board carrying the LED is fixed with the bottom foot. Above-mentioned prism catadioptric LED operation shadowless lamp optical system utilizes the prism structure as optical system's optical element, uses with the LED cooperation, the light that each LED sent can form a bundle of light column after the corresponding prism structure takes place to reflect and refracts and beat on the operating table, different light columns that different LED light-emitting formed mutually support, can realize better shadowless effect, and the optical component structure volume of constituteing by prism structure 1 and LED can not be too big, make the convenient removal of operating lamp.
Finally, it should be noted that, unless explicitly stated or limited otherwise, the terms "fixed" and "connected" are to be understood in a broad sense, and for example, they may be fixed in a connected manner, fixed in a relative manner, connected in a circuit, or connected internally, and those skilled in the art can understand the specific meaning of the terms in the present invention according to specific situations. Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The prism refraction and reflection type LED operation shadowless lamp optical system provided by the utility model is introduced in detail, the principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. A prism catadioptric LED surgical shadowless lamp optical system, comprising: a plurality of optical components; each of the optical components includes a prism structure and an LED; wherein the content of the first and second substances,
the bottom of the prism structure is provided with an incident groove, and the top of the prism structure is provided with an emergent groove opposite to the incident groove;
the bottom wall of the prism structure is a total reflection surface; a bottom foot is arranged at the joint between the bottom wall and the notch of the incident groove;
the LED is positioned at the notch of the incident slot; and the circuit board carrying the LED is fixed with the bottom foot.
2. The prism catadioptric LED surgical shadowless lamp optical system of claim 1, wherein all the optical components are divided into a plurality of optical modules according to a set rule;
all the optical modules are rotationally and symmetrically distributed by taking a main optical axis of the optical system as a center; or the like, or, alternatively,
all the optical modules are symmetrically distributed by taking any straight line on a plane perpendicular to a main optical axis of the optical system as a symmetry axis.
3. The prismatic refraction and reflection type LED surgical shadowless lamp optical system of claim 2, wherein all the LEDs contained in each optical module emit light at different angles through the prism structure singly.
4. The prism refraction and reflection type LED surgical shadowless lamp optical system of claim 2 or 3, wherein all the LEDs contained in each optical module are different from each other in spot size and central illumination when the LEDs are at a set distance from the front surface of the optical system.
5. The prism catadioptric LED surgical shadowless lamp optical system of claim 1, wherein all of the prism structures are at an angle no greater than 10 ° with respect to a direction perpendicular to a primary optical axis of the optical system.
6. The prismatic refractive-reflective LED surgical shadowless lamp optical system of claim 1 wherein the LEDs are classified as cold white LEDs and warm white LEDs;
the cold white LED is driven and controlled by a first constant voltage circuit or a first constant current circuit;
the warm white LED is driven and controlled by a second constant voltage circuit or a second constant current circuit.
7. The prismatic refractive reflective LED surgical shadowless lamp optical system of claim 1 wherein the total thickness of the optical system is no more than 4cm.
8. The prismatic refraction and reflection type LED surgical shadowless lamp optical system of claim 1, wherein the bottom of the LED and the notch of the incidence groove are in the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222954410.2U CN218379257U (en) | 2022-11-07 | 2022-11-07 | Prism refraction and reflection type LED operation shadowless lamp optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222954410.2U CN218379257U (en) | 2022-11-07 | 2022-11-07 | Prism refraction and reflection type LED operation shadowless lamp optical system |
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| CN218379257U true CN218379257U (en) | 2023-01-24 |
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| CN202222954410.2U Active CN218379257U (en) | 2022-11-07 | 2022-11-07 | Prism refraction and reflection type LED operation shadowless lamp optical system |
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