CN104633549B - Operating lamp - Google Patents
Operating lamp Download PDFInfo
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- CN104633549B CN104633549B CN201510064055.3A CN201510064055A CN104633549B CN 104633549 B CN104633549 B CN 104633549B CN 201510064055 A CN201510064055 A CN 201510064055A CN 104633549 B CN104633549 B CN 104633549B
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- Prior art keywords
- lens
- convergence unit
- light
- convergence
- operating lamp
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
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- 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
- F21W2131/205—Lighting for medical use for operating theatres
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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
- F21Y2101/00—Point-like light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention provides operating lamp, including lamp cap and multiple light fixtures, multiple light fixtures are fixed on lamp cap, light fixture includes light source, the first convergence unit and the second convergence unit, first convergence unit is set on lamp cap, and operating lamp further includes mobile disk, and the second convergence unit is set in mobile disk；The distance between second convergence unit and the first convergence unit are adjustable, so that the position for adjusting the convergent point of light beam realizes that spot size is adjusted.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly, to a kind of operating lamp.
Background technique
The light that the light source of operating lamp directly emits is diverging, is in lambertian distribution, is understood by using single lens
Gather to low-angle, the light fixture of existing operating lamp by light source and single positive lens groups at.And the light that operating lamp usually requires that
The angle changing rate of line is small, if being collimated light source to the low-angle light for meeting operating lamp requirement, to saturating using single lens
Mirror it is more demanding, need the bore of lens very big, at least 40mm or more, the material that lens use needs for high refractive index glass
Glass, and be the non-spherical lens that thickness is at least 20mm or more, however, the cost of heavy caliber glass aspheric lenses is very high, hand
The cost of art lamp will greatly improve.
And according to optical plastic lens, equally also need bore to be at least 40mm or more, thickness is at least 20mm's or more
It is aspherical.But lens thickness is blocked up to will affect material absorption, and the refractive index of the highest material of plastic lens only has 1.59,
Receipts light efficiency using optical plastic lens to 1 meter of working face is low, even if not considering material inhalation effects, receives light efficiency highest
It is not above 75%.
Therefore, either glass or plastics, the bore for requiring lens is relatively large, and which define operating lamp settings
Quantity, and if the LED negligible amounts of operating lamp, luminous quantity is limited, certainly will understand the luminance index of operating lamp again.Therefore, individually
What lenslet directly can not shoot out out LED collimates in lambertian distribution light to the requirement for meeting operating lamp visual area hot spot.
And simultaneously, existing operating lamp is realized that spot size is adjusted and is mainly changed by position that mechanical adjustment light source irradiates
The size of physics hot spot is realized in bifocal position, or using the brightness size of software adjustment hot spot difference overlapping region, changes
The diameter of darkening spot.By mechanical adjustment spot size, there is movement or transmission mechanism in mechanical adjustment, so that the surface of lamp cap
Dust falls off, and reduces dustless, the sterile effect of laminar flow operation room, increases the infected possibility of patients surgery process.And pass through
The physical region of software adjustment spot size, the only variation in brightness measurement, actual facula irradiation does not change, and leads to
Software adjustment is crossed, the lamp quantity needed is more.
Summary of the invention
Based on this, it is necessary to which providing a kind of new can adjust spot size operating lamp.
A kind of operating lamp, including lamp cap and multiple light fixtures, multiple light fixtures are fixed on lamp cap, light fixture packet
Light source, the first convergence unit and the second convergence unit are included, the first convergence unit is set on lamp cap, and operating lamp further includes mobile disk,
Second convergence unit is set in mobile disk；The distance between second convergence unit and the first convergence unit are adjustable, to adjust light
Realize that spot size is adjusted in the position of the convergent point of beam.
In a kind of wherein embodiment, the light-emitting surface of light source, the central axis of the first convergence unit and second are assembled single
The center overlapping of axles of member.
In a kind of wherein embodiment, the first convergence unit and the second convergence unit are lens or lens combination；First
The focal power of convergence unit is greater than 0.
In a kind of wherein embodiment, light fixture further includes dodging device, and dodging device is located at light source and the first meeting
Between poly- unit or dodging device is between the first convergence unit and the second convergence unit；The central axis and light of dodging device
The center of source light-emitting surface is overlapped.
In a kind of wherein embodiment, the first convergence unit and the second convergence unit are positive lens or TIR lens.
In a kind of wherein embodiment, the first convergence unit includes the first lens and the second lens, the first lens and the
Two lens are positive lens or TIR lens, the center overlapping of axles of the first lens and the second lens；Second convergence unit be positive lens or
TIR lens.
In a kind of wherein embodiment, the first convergence unit includes the first lens and the second lens, the first lens and the
Two lens are positive lens or TIR lens, the center overlapping of axles of the first lens and the second lens；Second convergence unit is negative lens,
The Abbe number of first lens and the second lens is greater than the Abbe number of the negative lens of the second convergence unit.
In a kind of wherein embodiment, the first convergence unit is positive lens or TIR lens, and the second convergence unit includes the
Three lens and the 4th lens, the third lens and the 4th lens glue, which merge, to be set in mobile disk, and the third lens are that positive lens or TIR are saturating
Mirror, the 4th lens are negative lens, and the Abbe number of the third lens is greater than the Abbe number of the 4th lens.
In a kind of wherein embodiment, multiple light fixtures of operating lamp divide in multiple row from the center of lamp cap to external spiral
Cloth, the second convergence unit include multiple, and the outside Spiral distribution in center of multiple second convergence unit from mobile disks.
In a kind of wherein embodiment, operating lamp further includes protective cover, and protective cover is transparent material, mobile disk and illumination
Component is arranged between protective cover and lamp cap, and protective cover and lamp cap are tightly connected.
Since the first convergence unit is set on lamp cap, the second convergence unit is set in mobile disk, the second convergence unit and the
The distance between one convergence unit is adjustable, by adjusting the distance between the first convergence unit and the second convergence unit, light source
The convergent point of light beam changes, and as the convergent point of light beam changes, operating lamp is corresponding in the spot size of irradiation area
Variation, thus realize operating lamp spot size adjust.
Detailed description of the invention
Fig. 1 is the inclined shaft schematic diagram of the lamp cap of the operating lamp of embodiment 1；
Fig. 2A is the side view of the mobile disk of the operating lamp of embodiment 1；
Fig. 2 B is the inclined shaft schematic diagram of the mobile disk of the operating lamp of embodiment 1；
Fig. 2 C is the top view of the mobile disk of the operating lamp of embodiment 1；
Fig. 3 A is the structural schematic diagram of the light fixture of embodiment 2；
Fig. 3 B is the structural schematic diagram of another light fixture of embodiment 2；
Fig. 4 is the light schematic diagram that the light of each light fixture of the operating lamp of embodiment 2 is overlapped in irradiation area；
Fig. 5 A is the distribution inclined shaft schematic diagram of the light fixture of the lamp cap of the operating lamp of embodiment 2；
Fig. 5 B is the distribution schematic top plan view of the light fixture of the lamp cap of the operating lamp of embodiment 2；
Fig. 6 A to Fig. 6 C is the light of the light fixture of embodiment 2 through the light schematic diagram of the second convergence unit；
Fig. 7 is the structural schematic diagram of the light fixture of the operating lamp of embodiment 3；
Fig. 8 is the structural schematic diagram of the light fixture of another operating lamp of embodiment 3；
Fig. 9 is the structural schematic diagram of the light fixture of another operating lamp of embodiment 3；
Figure 10 is the structural schematic diagram of the light fixture of another operating lamp of embodiment 3；
Figure 11 A is the structural schematic diagram of the light fixture of the operating lamp of embodiment 4；
Figure 11 B is the structural schematic diagram of the light fixture of another operating lamp of embodiment 4；
Figure 12 A is the structural schematic diagram of the light fixture of the operating lamp of embodiment 5；
Figure 12 B is the structural schematic diagram of the light fixture of the operating lamp of embodiment 5；
Figure 13 A to Figure 13 C is the light of the light fixture of embodiment 5 through the light schematic diagram of the second convergence unit.
Specific embodiment
In order to which technical solution of the present invention and advantage is more clearly understood, with reference to the accompanying drawings and embodiments, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Embodiment 1
As shown in Fig. 1 and Fig. 2A to Fig. 2 C, a kind of operating lamp, including lamp cap 10 and multiple light fixtures 20, Duo Gezhao
Bright component 20 is fixed on lamp cap 10.Light fixture includes light source, the first convergence unit 22 and the second convergence unit 31, the first meeting
Poly- unit 22 is set on lamp cap 10.Operating lamp further includes mobile disk 30, and the second convergence unit 31 is set in mobile disk 30.Second meeting
The distance between poly- unit 31 and the first convergence unit 22 are adjustable, so that spot size is realized in the position for adjusting the convergent point of light beam
It adjusts.
Since the first convergence unit is set on lamp cap, the second convergence unit is set in mobile disk, the second convergence unit and the
The distance between one convergence unit is adjustable, by adjusting the distance between the first convergence unit and the second convergence unit, light source
The convergent point of light beam changes, and as the convergent point of light beam changes, operating lamp is corresponding in the spot size of irradiation area
Variation, thus realize operating lamp spot size adjust.
Embodiment 2
In present embodiment, the focal power of the first convergence unit 22 is greater than 0, specifically, the first convergence in present embodiment
Unit 22 and the second convergence unit 31 are lens, specially positive lens or TIR lens, and the focal power of positive lens is greater than 0, positive lens
With TIR lens all can light have converging action.
First convergence unit 22 of present embodiment and the second convergence unit 31 form a light source convergence apparatus.Such as Fig. 3 A
Shown, light fixture includes light source 21 and light source convergence apparatus 200, and light source convergence apparatus 200 is located at the side in light source luminescent face,
Light source convergence apparatus 200 includes the first convergence unit 22 and the second convergence unit 31, the central axis of the first convergence unit 22, second
The central axis of convergence unit 31 and the center in light source luminescent face are overlapped, and the first convergence unit 22 and the second convergence unit 31 are positive
Mirror or TIR lens (total internal reflection lens).
Light is set to have converging action since positive lens and TIR lens have, the light of light source is through the first convergence unit
22, the convergence of rays of the diverging for projecting LED directly is to ± 40 degree or so, then further converges to through the second convergence unit 31 small
Angle is to meet the low-angle requirement of operating lamp requirement.The light fixture understands light by using the combination of two lens
Gather to low-angle, the bore of lens is required to reduce, the more small-bore lens of use.Therefore, the lens of light fixture are not
The quantity for influencing the light fixture of operating lamp setting again can guarantee have operation that enough light fixtures are arranged, to ensure to perform the operation
The brightness of lamp.
In the present embodiment, light source is the LED of monochromatic white.The center of the light-emitting surface of light source, the first convergence unit
The center overlapping of axles of axis and the second convergence unit.When light source is polychromatic source LED, as shown in Figure 3B, light fixture is also wrapped
Include dodging device 23, which is located between light source 21 and the first convergence unit 22, the central axis of dodging device 23 with
The center of 21 light-emitting surface of light source is overlapped, for by the light beam of more colors be mixed into light be evenly distributed, the light beam of solid color.It should
Dodging device 23 is the light mixing devices such as optical integral rod.
In the present embodiment, the specific position by adjusting mobile disk 30 adjusts the first convergence unit 22 and the second meeting
The distance of poly- unit 31, the process for realizing that hot spot is adjusted are as follows:
Such as Fig. 6 A, under original state, the light of light fixture light angle after the first convergence unit 22 reduces, light
By the second convergence unit 31, since the second convergence unit 31 is positive lens or TIR lens, to light to the work for thering is flexion to assemble
With further the angle of the light of light source can be reduced.When the second convergence unit 31 is in initial position, the second convergence unit
31 further decrease the angle of light, by the angular alignment of light to low-angle, therefore, the light through the second convergence unit 31
Close to directional light, at this point, the light fixture of operating lamp forms the circular light spot under original state in irradiation area.
As shown in Figure 6B, mobile disk 30 is mobile to the direction far from lamp cap, at this point, the second convergence unit 31 is from initial bit
31' is set to the direction movement far from the first convergence unit of hand 22, the distance increasing of the first convergence unit 22 and the second convergence unit 31
Greatly.By the light of the first convergence unit 22 flexion, and flexion occur at the second convergence unit 31 for the light of operation lamp source
Be it is convergent, since the distance of the first convergence unit 22 and the second convergence unit 31 increases, the light of lamp source of performing the operation is the
Deviation occurs at two convergence units 31 to assemble, convergent point is mobile to lamp cap direction, and due to the effect of convergence, the light of convergence is shining
It penetrates region and forms lesser circular light spot.
As shown in Figure 6 C, by mobile disk 30 to mobile close to lamp cap direction, at this point, the second convergence unit 31 is from initial position
31' is to close to the movement of the direction of the first convergence unit 22, the distance reduction of the first convergence unit 22 and the second convergence unit 31.Hand
Flexion occurs at the second convergence unit for light of the light of art lamp source through the first convergence unit 22 due to the first convergence unit
22 and second convergence unit 31 distance reduce, the second convergence unit becomes smaller to the tortuous angle of light, through the second convergence unit
The angle of the light of folding is still greater than 0 degree, at this point, convergent point is farthest, the light of diverging forms biggish circular light in irradiation area
Spot.
The above method, by the distance between the second convergence unit and the first convergence unit for adjusting mobile disk, to adjust
Whole spot size, specifically, can mutually realize the second convergence unit and the first convergence unit of mobile disk by adjusting mobile disk
The distance between.
As shown in figure 4, the central ray that each light fixture 20 projects is overlapped at the center of irradiation area, each illumination group
The light that part 20 projects is through the first convergence unit 22 and the second convergence unit 31, and the light of each light fixture 20 is in irradiation area
Center be overlapped and illumination region formed circular light spot.
The shape of operating lamp lamp cap 10 in present embodiment is circle, and the shape of mobile disk 30 is mutually fitted with the shape of lamp cap
Match, mobile disk 30 uses transparent material, will not influence the light of operation lamp source.30 upper and lower surface of mobile disk is smooth song
Face, and the curvature of upper and lower surfaces is identical, the central point line of the exit facet of each second convergence unit 31 in mobile disk 30
Formed curve is identical as the curvature of mobile disk above and below.
The distribution of the second convergence unit 31 in mobile disk 30 is consistent with the distribution of the light fixture of lamp cap, in order to effective
Improve operating lamp without shadow rate, the center of lamp cap is distributed with to peripheral each position in the light fixture of operating lamp as far as possible.
Preferably, as fig. 5 a and fig. 5b, multiple light fixtures 20 of operating lamp are in the outside Spiral distribution in center of multiple row from lamp cap,
Corresponding, the second convergence unit 31 includes multiple, and multiple second convergence units are outside in the center of multiple row from mobile disk 30
Spiral distribution.
The operating lamp of present embodiment, also offer protective cover, the protective cover use transparent material, not to the light of operating lamp
It will cause influence, mobile disk 30, light fixture 20 are arranged between protective cover and lamp cap, and protective cover and lamp cap sealing connect
It connects.Mobile disk and light fixture are arranged in the inside of operating lamp, mobile mobile disk will not influence the dustless and sterile of operating lamp
Effect.
Second convergence unit 31 can gluing be fixed in mobile disk 30, in other embodiments, the second convergence unit
31 are made one with mobile disk 30.
Preferably, the lens of the caliber size and the first convergence unit 22 of the lens of the second convergence unit 31 or lens composition
Or the caliber size of lens composition is consistent.It should be understood that since the first convergence unit is set on lamp cap, the second convergence unit
In mobile disk, the distance between the first convergence unit 22 and the second convergence unit 31 are adjusted, it can also be by adjusting lamp cap
Position realize.
Embodiment 3
In the present embodiment, as shown in Figure 7 to 9, the first convergence unit 22 is lens combination, including the first lens
223 and second lens 224, the first lens 223 and the second lens 224 are positive lens or TIR lens, the first lens 223 and second
The center overlapping of axles of lens 224.
First convergence unit is made of the first lens 223 and the second lens 224, due to the first lens 223 and the second lens
224 be positive lens or TIR lens, and positive lens and TIR lens on light line have converging action, therefore, in the present embodiment
The first convergence unit 22 be equivalent to the light source collimator apparatus 200 in embodiment 2, the light of light source is collimated to meeting operating lamp
It is required that low-angle light.
Second convergence unit 31 of present embodiment is positive lens, and the positive lens of the second convergence unit 31 is glued at mobile disk
On 30, in a particular embodiment, by adjusting mobile disk, and adjust the lens of the second convergence unit 31 in mobile disk with
The distance of second lens 234 realizes adjusting size hot spot.
Embodiment 3 the difference from example 2 is that, in embodiment 3, the first convergence unit 22 is lens subassembly, and real
Applying the first convergence unit in example 2 is single lens, and therefore, the first convergence unit of embodiment 3, the light of light source is by twice
It assembles, the light angle of embodiment 3 assembled through the first convergence unit is less than the light angle in embodiment 3, more meets operation
Requirement of the lamp to light angle.In addition, the first lens and the second lens of the first convergence unit 22 in embodiment 3 are positive lens
Or TIR lens, the second convergence unit are positive lens, therefore, in the specific spot size adjusting of embodiment 3 and embodiment 2
The light schematic diagram of Fig. 6 A to Fig. 6 C is similar, and details are not described herein.
In the present embodiment, if light source is color light source, dodging device 23 can be set to light source and the first convergence unit
Between, it can also be as shown in Figure 10, dodging device 23 is set between the first convergence unit 22 and the second convergence unit 31, even light dress
Set 23 central axis and the center of 21 light-emitting surface of light source, the first convergence unit 22 central axis and the second convergence unit 31 in
Mandrel be overlapped, for by the light beam of more colors be mixed into light be evenly distributed, the light beam of solid color.The dodging device 23 is light
Learn the light mixing devices such as integrating rod.In the present embodiment, two collimateds of the light beam of light source through the first convergence unit to compared with
Small angle, the light after dodging device 23 are evenly distributed.
Embodiment 4
There are the differences of refractive index for light due to same transparent medium to different wave length, and white light is by different wave length
White light composition, therefore, the refractive index that white light passes through each wavelength when lens is also different, same optical material, wavelength is shorter,
Refractive index is higher, and specifically, same optical glass, green light is higher than feux rouges refractive index, and blue light is higher than green light refractive index.Light
The refractive index for learning material is also related with material itself, and different optical materials often have different dispersions.If a kind of material with
Wavelength change causes variations in refractive index very big, we just say that this material is " high dispersion ".Conversely, being then known as " low dispersion ".
The light of different wave length will be with different degree dispersions.
The focal length of lens is related with the refractive index of mirror surface both sides curvature and glass, so if lens shape is fixed, lens
Focal length then only with manufacture the refractive index of lens materials it is related.Since optical material has dispersion, the same eyeglass is right
For feux rouges, focal length slightly length is a bit；For blue light, focal length is slightly shorter.This is just called " color difference ".Therefore, white
The refractive index that light passes through each wavelength when lens is also different, in the visual area hot spot that working face is formed just with the edge of chromatic colour, i.e. color
Difference.
In order to eliminate this color difference, as shown in Figure 11 A, in present embodiment, the focal power of the first convergence unit 22 is greater than
0, the focal power of the first convergence unit 22 is greater than or equal to the focal power of the second convergence unit 31.
Second convergence unit 31 of present embodiment includes the third lens 311 and the 4th lens 312,311 He of the third lens
4th lens 312 are glued and are set in mobile disk 30, and the first convergence unit 22 is positive lens or TIR lens.
Specifically, the focal power of the third lens 311 is greater than the focal power of the 4th lens 312, the third lens 311 are positive
Mirror, the 4th lens 312 are negative lens, and the Abbe number of the third lens 311 is greater than the Abbe number of the 4th lens 312.
Abbe number is exactly the inverse proportion index to indicate transparency material dispersive power, and the smaller then dispersion phenomenon of numerical value is more strict
Evil.In general, the refractive index of optical material is bigger, dispersion is more severe, then Abbe number is lower.Due to the Abbe number of the third lens 311
Greater than the Abbe number of the 4th lens 312, therefore, the degree of dispersion of the 4th lens is higher than the degree of dispersion of the first lens.
Using the glass combination of different refractivity, different color difference, color difference can be eliminated.The third lens 311 use positive lens,
The positive lens using low-refraction, low dispersion optical material, 312 negative lens of the 4th lens, the negative lens using high refractive index,
High-dispersive optical material, it is then that the two is glued together.Since the focal power of the third lens is greater than the 4th power of lens,
Therefore, the second convergence unit made of the third lens and the 4th lens group are glued is equivalent to a positive lens.For longer wavelength
Light, such as feux rouges, since negative lens material dispersion is big, namely refractive index is as wavelength change is big, so longer wavelength
Refractive index is smaller than intermediate wavelength, and therefore, for feux rouges, positive lens role is big, therefore, the length of the second convergence unit
Wave end focal length is partially long.For the light short compared with long wave, such as blue light, since negative lens dispersion is big, namely refractive index is with wavelength
Variation is big, so refractive index is larger, the disperse function that negative lens rises is big, and the shortwave end focal length of the second convergence unit is also partially long.
Therefore, the intermediate wavelength focal length of the second convergence unit is shorter, and such as green light, long wave and shortwave light focal length are longer.If
Timing reasonably selects the material of lens spherical curvature, lens, blue light, feux rouges focal length can be made just equal, this just disappears substantially
In addition to color difference, solves operating lamp hot spot and the phenomenon that colour edging occur.
Present embodiment by the third lens of the second convergence unit and the combination of the 4th lens, can effectively eliminate
Color difference.The operating lamp of present embodiment, not only can effectively eliminate color difference, additionally it is possible to adjust the second convergence by adjusting mobile disk
Unit between the first convergence unit at a distance from, realize spot size adjust.
Due to the first convergence unit focal power be greater than 0 and first convergence unit focal power be greater than or equal to second assemble
The focal power of unit, therefore, first, which assembles the combination of single and the second convergence unit, realizes converging action.When the light beam of light source is through first
Convergence unit occur deviation, and flexion be it is convergent, therefore, light source diverging hair line become smaller through the first convergence unit angle,
And the rear of the first convergence unit is converged to, at this point, convergent point is at the rear of the first convergence unit, and the second convergence unit also has
There is focal power, the second convergence unit will affect the position of convergent point, the position of convergent point relative to the distance of the first convergence unit
Difference, the spot size that the light fixture of operating lamp is focused at irradiation area is not also identical, by adjust the first convergence unit with
Second convergence unit distance realizes the adjusting of convergent point position, and then realizes that operating lamp spot size is adjusted.
And the second convergence unit is equivalent to a positive lens, therefore, the hot spot of present embodiment adjusts the light with embodiment 3
Spot regulative mode class is similar, and details are not described herein.
In the present embodiment, light source is the LED of monochromatic white.When light source is polychromatic source LED, such as Figure 11 B institute
Show, light fixture further includes dodging device 23, and the dodging device 23 is between light source 21 and the first convergence unit, dodging device
23 central axis is overlapped with the center of 21 light-emitting surface of light source, for by the light beam of more colors be mixed into light be evenly distributed, it is single
The light beam of color.The dodging device 23 is the light mixing devices such as optical integral rod.
It should be understood that the first convergence unit of present embodiment is positive lens and TIR lens, second assembles list
The third lens 311 of member are positive lens or TIR lens, therefore, the first convergence unit and the second convergence unit of present embodiment
The third lens combination, the light source convergence apparatus being equivalent in embodiment 2, the light of light source can be collimated to meet operation
The low-angle light that lamp requires.
Embodiment 5
Present embodiment provides another operating lamp for eliminating color difference and adjustable spot size.
As illustrated in fig. 12, the first convergence unit 22 of present embodiment is a lens combination, including the first lens 223
With the second lens 224, the first lens 223 and the second lens 224 are positive lens or TIR lens.The central axis of first lens 223,
The center of 21 light-emitting surface of central axis and light source of second lens is overlapped.First convergence unit is by the first lens 223 and the second lens
224 compositions, since the first lens 223 and the second lens 224 are positive lens or TIR lens, and positive lens and TIR lens on light line
With converging action, therefore, the first convergence unit 22 in the present embodiment is equivalent to the collimation dress of the light source in embodiment 1
It sets, the light of light source is collimated to the low-angle light for meeting operating lamp requirement.
Second convergence unit 31 of present embodiment uses negative lens, and the focal power of the negative lens is less than 0, and the first lens
223 and second lens 224 use optical material Abbe number be greater than the second convergence unit 31 negative lens use optics material
Expect Abbe number.Abbe number is exactly the inverse proportion index to indicate transparency material dispersive power, and the smaller dispersion phenomenon of numerical value is more strict
Evil.The Abbe number of the material of optical mirror slip is generally between 30 to 60.The refractive index of material is bigger, and dispersion is more severe, i.e. Abbe
Number is lower.
The purpose of present embodiment is the glass combination using different refractivity, different color difference, eliminates color difference, due to the
The focal power of one lens 223 and the second lens 224 is greater than 0, and the second convergence unit uses negative lens, and for focal power less than 0, light is logical
It crosses using low-refraction, the optical material of low dispersion makees the first lens 223 and the second lens 224, utilizes high refractive index, high dispersion
Optical material make negative lens, for the light of longer wavelength, such as feux rouges, since the optical material dispersion that negative lens uses is big,
I.e. refractive index with wavelength change it is big, so refractive index is smaller than intermediate wavelength, positive lens role is big, the second lens 224
The long wave end focal length for the lens being combined into the second convergence unit 31 is partially long.For the light short compared with long wave, such as blue light, due to negative
Lens achromatic is big, namely refractive index is as wavelength change is big, so refractive index is larger, the disperse function that negative lens rises is big, the
The shortwave end focal length for the lens that two lens 224 and the second convergence unit 31 are combined into is also partially long.
Therefore, the intermediate wavelength focal length of compound lens is shorter, and such as green light, but long wave and shortwave light focal length are longer.Design
When reasonably select the material of lens spherical curvature, lens, blue light, feux rouges focal length can be made just equal, this is just substantially eliminated
Color difference, solves operating lamp hot spot and the phenomenon that colour edging occurs.
Present embodiment by the first lens 223 and the second lens 224 and the second convergence unit 31 can be effective
Eliminate color difference.Second convergence unit is set in mobile disk, by adjusting mobile disk, can adjust the second convergence unit and the first meeting
The distance between second lens 224 of poly- unit adjust the position of convergent point, realize that spot size is adjusted.
Specific regulative mode, as shown in Figure 13 A to 13C.
Such as Figure 13 A, under original state, the light of light fixture is through the first lens 223 and second of the first convergence unit 22
After lens 224, the light of light fixture is collimated to the low-angle for meeting operating lamp requirement, and light is converged to the second lens
224 rear, light is using the second convergence unit 31, since the focal power of the first convergence unit 22 is greater than the second convergence unit
31 focal power, therefore, the focal power of the first convergence unit and the combination of the second convergence unit are greater than 0, and therefore, light is through the second meeting
Poly- unit is still to assemble.In the initial state, the second convergence unit 31 is close to the first convergence unit 224, due to the second convergence
Unit is negative lens, and the light of light source is after the second convergence unit, and light is close to directional light.The light fixture of operating lamp at this time
The circular light spot under original state is formed in irradiation area.
As shown in Figure 13 B, mobile disk is mobile to the direction far from lamp cap, at this point, the second convergence unit 31 is from initial bit
31' is set to the direction movement far from the second lens of hand 224, the distance increase of the second convergence unit 31 and the second lens 224.Operation
By the light of the second lens 224 flexion occurs at the second convergence unit 31 for the light of lamp source, and flexion be it is convergent,
Since the distance of the second lens 224 and the second convergence unit 31 increases, the light for lamp source of performing the operation is at the second convergence unit 31
Deviation occurs to assemble, convergent point is mobile to lamp cap direction, and due to the effect of convergence, the light of convergence forms smaller in irradiation area
Circular light spot.
As shown in fig. 13 c, mobile disk is continued it is mobile to the direction far from lamp cap, at this point, the second convergence unit 31 is from first
Beginning position 31' continue it is mobile to the direction far from the second lens 224, the distances of the second convergence unit 31 and the second lens 224 after
It is continuous to increase.It scatters and is radiated at after being converted at the focus F3' of the second convergence unit of light of second convergence unit 31 a bit
Irradiation area forms lesser circular light spot.At this point, the convergent point of light is near the focus F3' of the second convergence unit.Continue
Mobile disk is mobile to the direction far from lamp cap, and the distance of the second convergence unit 31 and the second lens 224 continues to increase, light
Convergent point is mobile to the direction far from lamp cap, and the second lens of light 224 of convergence form relatively large circle in irradiation area
Hot spot.
In the present embodiment, light source is the LED of monochromatic white.When light source is polychromatic source LED, such as Figure 12 B institute
Show, light fixture further includes dodging device 23, which is located between light source 21 and the first lens 223, dodging device
23 central axis is overlapped with the center of 21 light-emitting surface of light source, for by the light beam of more colors be mixed into light be evenly distributed, it is single
The light beam of color.The dodging device 23 is the light mixing devices such as optical integral rod.
Operating lamp of the embodiment 2 to embodiment 5, control using software realization to mobile disk can be accurately controlled shifting
The accurate adjusting of spot size is realized in the position of Moving plate.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of operating lamp, which is characterized in that including lamp cap and multiple light fixtures, multiple light fixtures are fixed on the lamp cap
On, the light fixture includes light source, the first convergence unit and the second convergence unit, and first convergence unit is set to the lamp
On head, the operating lamp further includes mobile disk, and second convergence unit is set in the mobile disk；Second convergence unit
The distance between first convergence unit is adjustable, so that the position for adjusting the convergent point of light beam realizes that spot size is adjusted；
First convergence unit and second convergence unit are lens or lens combination；The focal power of first convergence unit is big
In 0；The light source be color light source, the light fixture further includes dodging device, the dodging device be located at the light source with
Between first convergence unit or the dodging device be located at first convergence unit and second convergence unit it
Between；The central axis of the dodging device is overlapped with the center in the light source luminescent face；The mobile disk upper and lower surface is smooth
Curved surface, and the curvature of upper and lower surfaces is identical, curve formed by the central point line of the exit facet of second convergence unit with
The curvature of mobile disk above and below is identical；
The central axis weight of the light-emitting surface of the light source, the central axis of first convergence unit and second convergence unit
It closes；
Multiple light fixtures of the operating lamp are in the outside Spiral distribution in center of multiple row from the lamp cap, and described second assembles list
Member is including multiple, and the outside Spiral distribution in center of multiple second convergence unit from the mobile disks.
2. operating lamp according to claim 1, which is characterized in that first convergence unit and second convergence unit
For positive lens or TIR lens.
3. operating lamp according to claim 1, which is characterized in that first convergence unit includes the first lens and second
Lens, first lens and second lens are positive lens or TIR lens, first lens and second lens
Center overlapping of axles；Second convergence unit is positive lens or TIR lens.
4. operating lamp according to claim 1, which is characterized in that first convergence unit includes the first lens and second
Lens, first lens and second lens are positive lens or TIR lens, first lens and second lens
Center overlapping of axles；Second convergence unit is negative lens, and the Abbe number of first lens and second lens is greater than institute
State the Abbe number of the negative lens of the second convergence unit.
5. operating lamp according to claim 1, which is characterized in that first convergence unit be positive lens or TIR lens,
Second convergence unit includes the third lens and the 4th lens, and the third lens and the 4th lens glue, which merge, is set to institute
It states in mobile disk, the third lens are positive lens or TIR lens, and the 4th lens are negative lens, the third lens
Abbe number is greater than the Abbe number of the 4th lens.
6. operating lamp according to claim 1 or 2, which is characterized in that the operating lamp further includes protective cover, the protection
Cover is transparent material, and the mobile disk and the light fixture are arranged between the protective cover and the lamp cap, the protection
Cover is tightly connected with the lamp cap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510064055.3A CN104633549B (en) | 2015-02-06 | 2015-02-06 | Operating lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064055.3A CN104633549B (en) | 2015-02-06 | 2015-02-06 | Operating lamp |
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| CN104633549A CN104633549A (en) | 2015-05-20 |
| CN104633549B true CN104633549B (en) | 2019-03-08 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584568A (en) * | 1991-11-06 | 1996-12-17 | Etablissements Pierre Angenieux | Lighting method and apparatus having a variable illuminated field |
| CN103364931A (en) * | 2012-04-10 | 2013-10-23 | 肖特公开股份有限公司 | Camera objective lens with infrared filter and camera module with camera objective lens |
| CN203375280U (en) * | 2013-07-30 | 2014-01-01 | 上海医疗器械股份有限公司 | Shadowless lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807625A (en) * | 2012-11-12 | 2014-05-21 | 南昌迈柯尔医疗器械有限公司 | Integral reflection LED (light emitting diode) lamp holder device and shadowless lamp using device |
| CN104100878A (en) * | 2013-04-11 | 2014-10-15 | 上海吉顺医疗器械制造有限公司 | Secondary reflection type LED (light-emitting diode) shadowless lamp for operation |
| CN204254405U (en) * | 2014-12-15 | 2015-04-08 | 深圳市科曼医疗设备有限公司 | A kind of operating lamp light source assembly |
-
2015
- 2015-02-06 CN CN201510064055.3A patent/CN104633549B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584568A (en) * | 1991-11-06 | 1996-12-17 | Etablissements Pierre Angenieux | Lighting method and apparatus having a variable illuminated field |
| CN103364931A (en) * | 2012-04-10 | 2013-10-23 | 肖特公开股份有限公司 | Camera objective lens with infrared filter and camera module with camera objective lens |
| CN203375280U (en) * | 2013-07-30 | 2014-01-01 | 上海医疗器械股份有限公司 | Shadowless lamp |
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| CN104633549A (en) | 2015-05-20 |
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