CN102973239A - Light supply device and endoscope device used for medical equipment - Google Patents

Light supply device and endoscope device used for medical equipment Download PDF

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Publication number
CN102973239A
CN102973239A CN2012103079425A CN201210307942A CN102973239A CN 102973239 A CN102973239 A CN 102973239A CN 2012103079425 A CN2012103079425 A CN 2012103079425A CN 201210307942 A CN201210307942 A CN 201210307942A CN 102973239 A CN102973239 A CN 102973239A
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light
led
light source
supply apparatus
lighting
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CN2012103079425A
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Chinese (zh)
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水由明
斋藤牧
饭田孝之
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Fujifilm Corp
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Fujifilm Corp
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Abstract

The invention discloses a light supply device and an endoscope device used for medical equipment. The light supply device and the endoscope device have simple structures, generates necessary sufficient amount of light in high precision and always obtains good viewing images. The light supply device used for medical equipment comprises a light source portion with a plurality of luminous elements whose rated amount of light is different, and a light source driving portion which respectively generates drive signals sent to the plurality of luminous elements and drives the luminous elements. The light source driving portion drives the luminous elements with low rated amount of light in the plurality of luminous elements by using the drive signals which are used to compensate outgoing light amount from the light source portion. Under the condition that the light source portion is provided with a high luminance luminous element LED (L) with a first rated amount of light and a low luminance luminous element LED (S)with a second rated amount of light which is lower than the first rated amount of light, when outgoing light amount of the high luminance luminous element reduces, the light source driving portion obtains reduction value of the light amount of the high luminance luminous element LED, and the low luminance luminous element emits the amount of light compensating the reduction of the light amount.

Description

The light supply apparatus of medical device and endoscope apparatus
Technical field
The present invention relates to light supply apparatus and the endoscope apparatus of medical device.
Background technology
Be useful on as everyone knows the endoscope apparatus of observing endoceliac tissue.General endoscope apparatus be by will supplying with to endoceliac observed zone by photoconduction as illumination light from the white light of the white light source outgoing such as xenon lamp, and utilize imaging apparatus that the catoptrical picture from observed zone is made a video recording.Thus, obtain common observation image based on white light.In addition, propose in recent years to have the light emitting diode of the life-span is longer and power saving as the scheme of the endoscope apparatus of light source.For example in patent documentation 1, record the endoscope-use light source that uses a plurality of light emitting diodes.
Technical literature formerly
Patent documentation 1: TOHKEMY 2007-44249 communique
Summary of the invention
The problem that invention will solve
When lighting a plurality of light emitting diode simultaneously, corresponding with the quantity of the light emitting diode of lighting and cause caloric value to increase, the easy heat ageing of light emitting diode.Therefore, in the endoscope-use light source of above-mentioned patent documentation 1, be used for the cooling body that the substrate for the light emitting diode configuration cools off is arranged at the endoscope-use light source.Yet usually, light emitting diode rises except Yin Wendu and causes producing the heat ageing, and the characteristics of luminescence also changes.Therefore, even to the constant driving signal of light emitting diode input, be accompanied by the temperature rising of light emitting diode and luminous quantity is reduced, sometimes can not obtain the observation image of wanting.In addition, in order to obtain the light quantity that equates with Halogen light etc. and need to light simultaneously a plurality of light emitting diodes, or use the high light emitting diode of specified light quantity, light source forms high brightness, and caloric value increases, luminous quantity changes easily.
Therefore, the object of the invention is to, provide a kind of and generate accurately the illumination light of the sufficient light quantity that needs and always obtain light supply apparatus and the endoscope apparatus of the medical device of good observation image with simple structure.
The present invention includes following structure.
(1) a kind of light supply apparatus of medical device, the light supply apparatus of this medical device possesses:
Light source portion, this light source portion have the different a plurality of light-emitting components of specified light quantity; And
Light source drive part, this light source drive part generate respectively to the driving signal of above-mentioned a plurality of light-emitting components transmissions and to above-mentioned light-emitting component and drive,
The driving signal that above-mentioned light source drive part utilization is used for the outgoing light quantity from above-mentioned light source portion is compensated drives the low light-emitting component of the above-mentioned specified light quantity of above-mentioned a plurality of light-emitting components.
(2) be equipped with the endoscope apparatus of light supply apparatus of the medical device of (1).
Light supply apparatus and endoscope apparatus according to medical device of the present invention, even producing light quantity at light-emitting component reduces, by utilizing the low light-emitting component of specified light quantity that its light quantity reduction amount is compensated, also can generate accurately the illumination light of the sufficient light quantity that needs and always obtain good observation image with simple structure.
Description of drawings
Fig. 1 is for the figure of explanation embodiments of the present invention, is the structure chart of endoscope apparatus.
Fig. 2 is the outside drawing that the concrete structure example of endoscope apparatus is shown.
Fig. 3 is the chart that changes the time of the outgoing light quantity of expression LED (L) and LED (S).
Among Fig. 4, (A) being the chart that the driving signal of LED (L) is shown, (B) is the chart that the driving signal of LED (S) is shown.
Fig. 5 is the chart that the light quantity variation of illumination light is shown.
Fig. 6 be schematically illustrated LED (L) and LED (S) emergent light intensity gray scale (humorous Tone) value and drive the chart of the relation between the intensity of signal.
Among Fig. 7, (A) being the chart that the driving signal of LED (L) is shown, (B) is the chart that the driving signal of LED (S) is shown.
Fig. 8 is the chart that the light quantity variation of illumination light is shown.
Fig. 9 is the major part structure chart of light supply apparatus 19A.
Among the figure:
11 endoscopies
13 control device
19 light supply apparatuses
The 19A light supply apparatus
21 processors
45 imaging apparatuss
55 information storage parts
59 light source control sections
61 fine bundles (Off ア イ バ バ Application De Le)
63 control parts
65 optical sensors
100 endoscope apparatus
LED (L) light emitting diode
LED (S) light emitting diode
Pa lights pulse
Pb lights pulse
Pc lights pulse
The specific embodiment
Below, by reference to the accompanying drawings embodiments of the present invention are described in detail.
Fig. 1 is for the figure of explanation embodiments of the present invention, is the structure chart as the endoscope apparatus of armarium.Fig. 2 is the outside drawing that the concrete structure example of endoscope apparatus is shown.
As shown in Figure 1, endoscope apparatus 100 possesses endoscope 11, the control device 13 that is connected with endoscope 11, shows the display part 15 of observing image etc. and is used for input parts 17 such as keyboard, mouse to control device 13 input messages.Control device 13 constitutes the processor 21 that has light supply apparatus 19 and be used for carrying out the signal processing of photographed images.
Endoscope 11 possesses: main body operating unit 23; And the insertion section 25 of elongate, itself and this main body operating unit 23 arranges continuously, and inserts in tested the having a medical check-up (body cavity).General flexible cord 27 is connected with main body operating unit 23.The front end of this general flexible cord 27 is via (LG) adapter 29A and being connected with light supply apparatus 19 of photoconduction (light guide), and is connected with processor 21 via video-frequency connector 29B.
As shown in Figure 2, the various action buttons 31 such as shutter release button of the main body operating unit 23 of endoscope 11 when 25 front spread configuration is useful on the button of implementing suction, air feed, water supply and shooting in the insertion section, and be provided with a pair of angulation knob (angle nub) 33.
Insertion section 25 is made of bending section 35, bending section 37 and leading section (endoscope distal end section) 39 successively from the main body operating unit 23 that is disposed at base end side.Bending section 37 draws not shown operating line by the angulation knob 33 that rotates main body operating unit 23, and thus, insertion section 25 can be by bending operation remotely, thereby makes leading section 39 towards desirable direction.
As shown in Figure 1, dispose the observation window 41 of image pickup optical system and the illuminating window 43 of lamp optical system in endoscope distal end section 39.Shine tested having a medical check-up from the illumination light of illuminating window 43 outgoing.And then, utilize imaging apparatus 45 to make a video recording from tested reflected light of having a medical check-up by observation window 41.The observation image of being made a video recording is shown at the display part 15 that is connected with processor 21.
Herein, image pickup optical system has: the imaging apparatuss 45 such as CCD (Charge Coupled Device) type image sensor, CMOS (Complementary Metal Oxide Semiconductor) type image sensor; And make the observation picture at the opticses such as lens 47 of imaging apparatus 45 imagings.Be input to the image pickup signal handling part 53 of processor 21 in the sensitive surface imaging of imaging apparatus 45 and the observation of obtaining looks like to be transformed to the signal of telecommunication by signal cable 51, be transformed to signal of video signal at this.In addition, imaging apparatus 45 can also possess the serial chromatic filters of complementary color (Fill color) such as CMY, CMYG except the former color system chromatic filter that possesses RGB.
Processor 21 possesses control part 63, is used for generating image pickup signal handling part 53 and the various information canned data of the details confession described later storage part 55 of signal of video signal.63 pairs of control parts are from the view data of the observation image of image pickup signal handling part 53 outputs real-time image processing suitably, and mirror at display part 15.In addition, to the light source control section 59 output control signals of light supply apparatus 19, and from the illumination light of the desirable light quantity of illuminating window 43 outgoing.This control part 63 and not shown network connections such as LAN transmit the information that comprises view data etc., and endoscope device 100 integral body are controlled.
The fibre bundle 61 that lamp optical system has light supply apparatus 19 and is connected with light supply apparatus 19 via adapter 29A.Light supply apparatus 19 has as light source portion: the high illumination element of the first specified light quantity that is LED (L) and than the first specified light quantity low-light level light-emitting component that is the LED (S) of the second low specified light quantity, synthetic from above-mentioned LED (L) and LED (S) emergent light and generate illumination light.
LED (L) is white luminous high brightness type light emitting diode, and LED (S) is white luminous small light-emitting diode.Although the maximum emission intensity of LED (S) than LED (L) a little less than, the response characteristic of lighting is faster than LED (L).
, after importing fibre bundle respectively, be synthesized by being unified in a fine bundle from each emergent light of LED (L), LED (S), and from the light exit side outgoing of fibre bundle.
Light source control section 59 exports respectively the driving signal to LED (L) and LED (S) driving, and independently LED (L) and LED (S) is driven respectively.
In other words, 63 couples of LED of the control part of processor 21 (L), LED (S) carry out fader control, and export the white light of desirable light quantity.The white light of this output is imported into fine bundle 61, until be directed to till the endoscope distal end section 39.Thus, from the illumination light of the illuminating window 43 outgoing whites of endoscope distal end section 39.
Then, LED (L) is described with the driving control of LED (S).
Control part 63 is to the control signal of light source control section 59 output indicating target light quantities.Light source control section 59 receives the control signal of input and generates the driving signal that LED (L) and LED (S) are driven, and exports each driving signal to LED (L) and LED (S).
The chart of the time variation of the outgoing light quantity that represents LED (L) and LED (S) is shown at Fig. 3.
LED (L) receives based on the driving signal of input with the outgoing light quantity and forms the driving signal that the mode of the target light quantity of regulation generates and begin to light.The outgoing light quantity of LED (L) is from (tO increases gradually to t1, reaches the target light quantity at moment t1 constantly.Afterwards, because LED (L) itself generates heat because lighting, the outgoing light quantity of LED (L) makes the outgoing light quantity slowly reduce because the characteristics of luminescence changes.And the outgoing light quantity forms steady statue under the state of the amount that has reduced light quantity Id.
In other words, when only having LED (L) to generate illumination light, the distance objective light quantity differs the amount of light quantity Id and forms deficiency in light quantity after moment t1.Therefore, light source control section 59 lights driving LED (S) for the light quantity Id to deficiency compensates.In other words, after moment t1, with the amount of light quantity Id LED (S) is lighted, LED (S) is controlled, so that LED (L) is consistent with total and the target light quantity of the outgoing light quantity of LED (S).
Fig. 4 (A), (B) illustrate the example of concrete driving signal.Fig. 4 (A) is the chart that the driving signal of LED (L) is shown, and Fig. 4 (B) is the chart that the driving signal of LED (S) is shown.Shown in Fig. 4 (A), apply driving signal that LED (L) is driven and light pulse Pa at moment t0 from what OFF became ON.So, shown in the accompanying drawing dotted line, reach the target light quantity at moment t1 from the outgoing light quantity of LED (L) like that, reduce afterwards.Therefore, shown in Fig. 4 (B), from making the moment t1 behind the stipulated time Δ t the moment t0 that pulse Pa becomes ON that lights that applies to LED (L), LED (S) applied drive signal and light pulse Pb for what become ON from OFF.The signal intensity of lighting pulse Pb (integrated intensity of pulse amplitude and amplitude) of this moment is set to and obtains light quantity Id.
The stipulated time Δ t that moment t1 is stipulated is determined by the response characteristic of lighting LED (L).The individual character of the fluorescent material that is comprised by LED (L) from the reduction light quantity Id of the emergent light of LED (L) in addition, etc. determines.In information storage part shown in Figure 1 55, control part 63 is (Sui Time at any time by pre-stored for the response characteristic of above-mentioned LED (L), the information of individual character) with reference to this information, can try to achieve thus stipulated time Δ t and reduce light quantity Id.
Like this, when light source control section 59 generates the driving signal shown in Fig. 4 (A), (B) and to LED (L), LED (S) when driving, promptly reach desirable light quantity from both sides' the illumination light that emergent light synthesized.That is, the chart that the light quantity of illumination light expression illumination light as shown in Figure 5 changes is such, forms desirable target light quantity after moment t1.
If the reduction of the outgoing light quantity of LED (L) mainly is because the temperature that the heating when lighting causes rises, then can try to achieve its emergent light reduction amount herein, with resolving.
In this case, control part 63 is stored in information storage part 55 with the driving resume of driving LED (L) as driving record information.Control part 63 reads until the driving resume before this storage, and tries to achieve and the lighting intensity, light the accumulation state that time etc. lights heating corresponding to resume of LED (L).And then, the current component temperature of deduction LED (L).
Then, control part 63 references are stored in the temperature-dependent characteristics information of information storage part 55, and try to achieve the luminous efficiency of the LED (L) corresponding with the present temperature of the LED that infers (L), thereby infer the luminous quantity of the reality of LED (L).The actual luminous quantity of this deduction and the difference of target light quantity become the reduction light quantity Id of emergent light.
Control part 63 to be forming the mode setting signal intensity of the light quantity that is equivalent to reduce light quantity Id, and exports the driving signal of the LED (S) of Fig. 4 (B) to light source control section 59 as control signal.
According to above control, endoscope apparatus can expose to tested having a medical check-up with the such illumination light of target light quantity as desired.Thus, can not form deficiency in light quantity and always can access good observation image.
By the specified luminous quantity of lighting simultaneously said structure different LED (L) and LED (S), compare with the situation of utilizing single light-emitting component to carry out the gray-scale Control of light quantity, can improve the precision of fader control.Although the gray-scale Control of LED (L) and LED (S) considers that various control models are arranged, for example can form gray-scale Control as shown in Figure 6.
Fig. 6 be schematically illustrated LED (L) and LED (S) emergent light intensity gray value and drive the chart of the relation between the intensity of signal.The gray-scale Control of LED (L) is at 0~N LmaxScope in, the gray-scale Control of LED (S) is at 0~N SmaxScope in.When the minimal gray span of control with LED (L) is made as St, in this minimal gray span of control St, carry out based on LED
(S) gray-scale Control, the actual grey span of control of the illumination light of the emergent light of synthetic LED (L) and LED (S) is by St/N thus SmaxExpression.Therefore, carry out gray-scale Control by making up the different LED of specified luminous quantity (L) with LED (S), can set more meticulously gray-scale Control amplitude (width of cloth), thereby can realize careful fader control.
Though not shown, in above-mentioned gray-scale Control, by the driving signal that the light quantity reduction amount of LED (L) is compensated at the driving signal overlap of LED (S), the illumination light quantity does not reduce and can correctly obtain desirable target light quantity.
Then, to for eliminate because of the different illumination light quantity not sufficients of lighting the initial stage (initial stage) that cause of response characteristic of LED (L) and LED (S), LED (L) describes with the driving control of LED (S).
Described above shown in Figure 5, drive moment t0~t1 after the beginning during form transition period, the light quantity of the illumination light after the outgoing light quantity of synthetic LED (L) and LED (S) is changed to moment miss the mark light quantity and produce operating lag.Therefore, shown in Fig. 7 (A), (B), in order to eliminate this operating lag, the pulse Pc that lights that will light at the LED (S) of the regulated period chien shih fast response time of t0~t2 simultaneously with the rising of lighting pulse Pa that applies to LED (L) (constantly t0) puts on LED (S).
Because the response characteristic of LED (S) is fast, based on lighting rising from moment t0 moment from the emergent light of LED (S) of pulse Pc.And after the terminal of lighting pulse Pc that is moment t2, light quantity slowly reduces because of residual light, and light quantity becomes 0 at moment t1.Because the outgoing light quantity of LED (L) is consistent with the target light quantity at moment t1, so be 0 also passable from the outgoing light quantity of LED (S).
After moment t1, identical light pulse Pb to what LED (S) applied according to above-mentioned, the light of the amount that reduces from the outgoing light quantity of LED (S) outgoing LED (L), and make the light quantity of illumination light be maintained consistent with the target light quantity.
Like this, as shown in Figure 8, utilize to what LED (S) applied and light pulse Pa, Pb, the illumination light after LED (L) is synthetic with the emergent light of LED (S) is from having applied the moment t0 that lights pulse Pa and risen sharp and having reached the target light quantity.
Control part 63 (with reference to Fig. 1) is set the signal intensity of the pulse Pc that applies to LED (S) with reference to the response characteristic of the LED (L) that is stored in information storage part 55.That is, the signal intensity of paired pulses Pc is set, so that compensated the amount of the emergent light quantity not sufficient of the LED (L) that the operating lag because of LED (L) produces after just lighting by LED (S) luminous.
Light source control section 59 uses the above-mentioned driving signals of lighting pulse Pb, Pc of combination and driving LED (S), can generate thus and the driving signal that applies to LED (L) that is the ignition mode of the lighting pulse Pa illumination light of consistent light quantity roughly.Thus, more high speed and the correctly light quantity of modulate illumination light.In addition, even carrying out also can along with the variation of tested imaging conditions of having a medical check-up, always can obtaining good observation image in the situation of the tested animation shooting that changes of having a medical check-up sharp etc.
Herein, although based on the driving record information of the signal intensity LED (L) that lights pulse Pb, Pc that applies to LED (S), temperature dependency information and set light source control section 59, also can directly measure from the emergent light intensity of LED (L) and set.
In this case, as the major part structure that light supply apparatus 19A is shown at Fig. 9, dispose the optical sensor 65 that reduces for detection of light quantity midway in the light path from the emergent light of LED (L), will be input into from the output information of this optical sensor 65 light source control section 59.In addition, in the accompanying drawing example, although between the optical emission exit of LED (L) and collecting lens 67 configuration optical sensor 65, the allocation position of optical sensor 65 is not limited to this.
Like this; the present invention is not limited to above-mentioned embodiment; those skilled in the art mutually make up embodiment each structure, the change of carrying out based on the record of description and known technology, use also of the present invention predetermined among, and be contained in the scope of looking for protection.
For example, when utilizing the light quantity reduction amount Id of LED (S) compensation LED (L), also can reduce the light quantity of LED (L) and detect, the light quantity of the regulation that then predetermines from LED (S) outgoing.In this case, the computational burden of fader control reduces, can the simplification device structure, thus improve processing speed.
In addition, although LED (L), LED (S) are respectively arranged with one, also can make up a plurality of LED and consist of.In addition, LED (L) also can be that white light source by the white light sources such as xenon lamp, Halogen light, combined semiconductor laser and fluorophor consists of.In addition, LED (S) also can be made of other white light sources also in the same manner.
More than, disclose following item in this description.
(1) a kind of light supply apparatus of medical device, the light supply apparatus of this medical device possesses:
Light source portion, it has the different a plurality of light-emitting components of specified light quantity; And light source drive part, it generates respectively to the driving signal of above-mentioned a plurality of light-emitting components transmissions and to above-mentioned light-emitting component and drives, and above-mentioned light source drive part utilization drives for the light-emitting component of the driving signal that the outgoing light quantity from above-mentioned light source portion is compensated to the above-mentioned specified light quantity reduction of above-mentioned a plurality of light-emitting components.
Light supply apparatus according to this medical device, even producing light quantity at light-emitting component reduces, utilize the low light-emitting component of specified light quantity that this light quantity reduction amount is compensated, the illumination light of the enough light quantities that need can be generated accurately with simple structure thus, always good observation can be carried out.
(2) in the light supply apparatus of the medical device of (1), above-mentioned light source portion has the low-light level light-emitting component of high illumination element and the second specified light quantity lower than the above-mentioned first specified light quantity of the first specified light quantity.
According to the light supply apparatus of this medical device, use the different high illumination element of specified light quantity and low-light level light-emitting component, can control accurately the light quantity of illumination light.
(3) at the light supply apparatus of the medical device of (2), the light supply apparatus of this medical device possesses information storage part, this information storage part is stored the temperature-dependent characteristics information that the driving record information of lighting the storage of driving resume and the expression luminous quantity corresponding with the component temperature of above-mentioned high illumination element for above-mentioned high illumination element change
The component temperature that above-mentioned light source drive part is inferred above-mentioned high illumination element with reference to above-mentioned driving record information, and try to achieve the outgoing light quantity reduction amount corresponding to the component temperature of this deduction of above-mentioned high illumination element with reference to the interdependent characteristic information of said temperature, thereby utilize above-mentioned low-light level light-emitting component that above-mentioned outgoing light quantity reduction amount is compensated.
Light supply apparatus according to this medical device, infer the component temperature of high illumination element according to the driving resume of high illumination element, and try to achieve outgoing light quantity reduction amount under this deduction temperature with resolving, need not thus actual measurement and just can try to achieve outgoing light quantity from high illumination element.Thus, can make illumination light consistent with desirable light quantity with simple structure.
(4) in the light supply apparatus of the medical device of (2), also possesses the optical sensor of measuring from the emergent light intensity of above-mentioned high illumination element, above-mentioned light source drive part is tried to achieve above-mentioned outgoing light quantity reduction amount according to the emergent light intensity of being measured by above-mentioned optical sensor, and utilizes above-mentioned low-light level light-emitting component to come this outgoing light quantity reduction amount is compensated.
According to the light supply apparatus of this medical device, utilize optical sensor and actual measurement from the outgoing light quantity of high illumination element, can try to achieve thus correct light quantity reduction amount.
(5) in (2) to (4) in the light supply apparatus of each medical device, above-mentioned low-light level light-emitting component have than above-mentioned high illumination element fast light response characteristic,
Above-mentioned light source drive part also comprises in the driving signal of above-mentioned low-light level light-emitting component for the pulse of lighting that outgoing light quantity not enough after just the lighting of above-mentioned high illumination element is compensated.
Light supply apparatus according to this medical device, can be used to from the emergent light of low-light level light-emitting component the not enough light quantity after just lighting that the operating lag because of high illumination element causes be compensated, not generate illumination light thereby can not produce operating lag ground according to driving signal.
(6) at the light supply apparatus of the medical device of (5), above-mentioned light source control section applies the above-mentioned pulse of lighting at light the zero hour (timing) of above-mentioned high illumination element.
According to the light supply apparatus of this medical device, owing to the low-light level light-emitting component is lighted when lighting of high illumination element begins, so the minimizing of the operating lag of illumination light, can generate illumination light in the more accurate moment.
(7) in (1) to (6) in the light supply apparatus of each medical device, above-mentioned a plurality of light-emitting components are light emitting diode.
Light supply apparatus according to this medical device consists of light-emitting component with light emitting diode, thus elongated, maintainability raising of the life-span of light-emitting component, and obtain power saving and the high illumination light of efficiency.
(8) a kind of endoscope apparatus, it is equipped with the light supply apparatus of each medical device in (1)~(7).
According to this endoscope apparatus, always can utilize stable illumination light and obtain good observation image, thereby the endoscopic diagnosis precision improves.

Claims (12)

1. the light supply apparatus of a medical device is characterized in that,
Possess:
Light source portion, it has the different a plurality of light-emitting components of specified light quantity; And
Light source drive part, it generates respectively for the driving signal of described a plurality of light-emitting components described light-emitting component is driven,
The driving signal that described light source drive part utilization is used for the outgoing light quantity from described light source portion is compensated drives the low light-emitting component of the described specified light quantity of described a plurality of light-emitting components.
2. the light supply apparatus of medical device according to claim 1 is characterized in that,
Described light source portion has the low-light level light-emitting component of high illumination element and the second specified light quantity lower than the described first specified light quantity of the first specified light quantity.
3. the light supply apparatus of medical device according to claim 2 is characterized in that,
Also possess: information storage part, it is stored driving record information and temperature-dependent characteristics information, what described driving record information stored described high illumination element lights the driving resume, the luminous quantity corresponding with component temperature of the described high illumination element of described temperature-dependent characteristics information representation changes
The component temperature that described light source drive part is inferred described high illumination element with reference to described driving record information, and try to achieve the outgoing light quantity reduction amount of the described high illumination element corresponding with the component temperature of this deduction with reference to described temperature-dependent characteristics information, thereby utilize described low-light level light-emitting component that described outgoing light quantity reduction amount is compensated.
4. the light supply apparatus of medical device according to claim 2 is characterized in that,
Also possess the optical sensor of measuring from the emergent light intensity of described high illumination element,
Described light source drive part is tried to achieve described outgoing light quantity reduction amount according to the emergent light intensity of being measured by described optical sensor, and utilizes described low-light level light-emitting component to come this outgoing light quantity reduction amount is compensated.
5. the light supply apparatus of medical device according to claim 2 is characterized in that,
Described low-light level light-emitting component has than described high illumination element lights response characteristic rapidly,
Described light source drive part includes in the driving signal of described low-light level light-emitting component for the pulse of lighting that outgoing light quantity not enough after just the lighting of described high illumination element is compensated.
6. the light supply apparatus of medical device according to claim 3 is characterized in that,
Described low-light level light-emitting component has than described high illumination element lights response characteristic rapidly,
Described light source drive part includes in the driving signal of described low-light level light-emitting component for the pulse of lighting that outgoing light quantity not enough after just the lighting of described high illumination element is compensated.
7. the light supply apparatus of medical device according to claim 4 is characterized in that,
Described low-light level light-emitting component has than described high illumination element lights response characteristic rapidly,
Described light source drive part also includes in the driving signal of described low-light level light-emitting component for the pulse of lighting that outgoing light quantity not enough after just the lighting of described high illumination element is compensated.
8. the light supply apparatus of medical device according to claim 5 is characterized in that,
Lighting of described light source control section and described high illumination element applies the described pulse of lighting the zero hour when identical.
9. the light supply apparatus of medical device according to claim 6 is characterized in that,
Lighting of described light source control section and described high illumination element applies the described pulse of lighting the zero hour when identical.
10. the light supply apparatus of medical device according to claim 7 is characterized in that,
Lighting of described light source control section and described high illumination element applies the described pulse of lighting the zero hour when identical.
11. the light supply apparatus of each described medical device in 10 is characterized in that according to claim 1,
Described a plurality of light-emitting component is light emitting diode.
12. an endoscope apparatus is characterized in that,
Described endoscope apparatus is equipped with the light supply apparatus of each described medical device in the claim 1 to 11.
CN2012103079425A 2011-09-05 2012-08-27 Light supply device and endoscope device used for medical equipment Pending CN102973239A (en)

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JP2011193337A JP2013052156A (en) 2011-09-05 2011-09-05 Light source device of medical instrument and endoscope
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