JP2012100887A5 - - Google Patents
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- JP2012100887A5 JP2012100887A5 JP2010252263A JP2010252263A JP2012100887A5 JP 2012100887 A5 JP2012100887 A5 JP 2012100887A5 JP 2010252263 A JP2010252263 A JP 2010252263A JP 2010252263 A JP2010252263 A JP 2010252263A JP 2012100887 A5 JP2012100887 A5 JP 2012100887A5
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- pulse
- control
- endoscope apparatus
- light source
- light
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Claims (9)
前記照明光を生成する複数の半導体光源と、
入力された目標光量に応じてパルス密度の変調された駆動パルスにより、前記半導体光源をパルス点灯駆動する光源制御手段と、
を備え、
前記光源制御手段は、
少なくとも前記目標光量が、前記駆動パルスの隣接するパルス間隔がフリッカ発生光量となる場合に、前記複数の半導体光源をそれぞれ同じ駆動パルスでパルス点灯制御する第１の制御から、
１つの半導体光源だけを点灯し、該１つの半導体光源を、前記駆動パルスの点灯周波数より増加させた点灯周波数でパルス点灯制御する第２の制御に切り替える内視鏡装置。 An endoscope apparatus that emits illumination light of a desired light amount from the distal end of an endoscope insertion portion,
A plurality of semiconductor light sources for generating the illumination light;
Light source control means for driving the semiconductor light source in a pulsed manner with a driving pulse whose pulse density is modulated in accordance with the input target light amount;
With
The light source control means includes
From at least the first control for controlling the pulse lighting of the plurality of semiconductor light sources with the same drive pulse when at least the target light amount is a flicker generated light amount between adjacent pulse intervals of the drive pulse ,
An endoscope apparatus in which only one semiconductor light source is turned on, and the one semiconductor light source is switched to a second control that performs pulse lighting control at a lighting frequency that is higher than the lighting frequency of the drive pulse .
フリッカ発生光量となる場合の前記駆動パルスの隣接するパルス間隔が１６．６ｍｓ以上である内視鏡装置。 The endoscope apparatus according to claim 1,
An endoscope apparatus in which an interval between adjacent pulses of the drive pulse when the amount of flicker is generated is 16.6 ms or more.
前記光源制御手段が、前記第１の制御と前記第２の制御とを切り替える際、
前記第１の制御による前記複数の半導体光源の駆動パルスのパルス密度の合計と、前記第２の制御による前記駆動パルスのパルス密度とが互いに等しくされた内視鏡装置。 The endoscope apparatus according to claim 1 or 2,
When the light source control means switches between the first control and the second control,
An endoscope apparatus in which a sum of pulse densities of the driving pulses of the plurality of semiconductor light sources by the first control and a pulse density of the driving pulses by the second control are made equal to each other.
前記光源制御手段が、前記第１の制御と前記第２の制御とを切り替える光量を、前記フリッカ発生光量より所定量大きい光量に設定する内視鏡装置。 The endoscope apparatus according to any one of claims 1 to 3,
An endoscope apparatus in which the light source control means sets a light amount for switching between the first control and the second control to a light amount larger than the flicker generation light amount by a predetermined amount.
前記光源制御手段が、前記目標光量に応じた駆動パルスを、前記目標光量の大きい順に、第１のパルス変調制御、第２のパルス変調制御を用いて生成するものであり、
前記第１のパルス変調制御が、前記目標光量の減少に応じて、所定間隔で前記駆動パルスを間引くことで点灯期間内のパルス密度を減少させる制御であり、
前記第２のパルス変調制御が、前記第１のパルス変調制御において最小パルス数とされた各駆動パルスに対し、前記目標光量の減少に応じて、パルス幅を減少させる制御である内視鏡装置。 The endoscope apparatus according to any one of claims 1 to 4,
The light source control means generates a drive pulse corresponding to the target light amount by using the first pulse modulation control and the second pulse modulation control in order of increasing target light amount;
The first pulse modulation control is a control for reducing a pulse density in a lighting period by thinning out the drive pulses at a predetermined interval according to a decrease in the target light amount ,
The endoscope apparatus in which the second pulse modulation control is a control for reducing a pulse width in accordance with a decrease in the target light amount with respect to each drive pulse having the minimum number of pulses in the first pulse modulation control. .
任意の目標光量に対する前記半導体光源の駆動パルスをパルス密度の変調に基づいて定めた制御パラメータ情報を記憶する記憶手段を備え、
前記光源制御手段が、入力された目標光量に応じた駆動パルスを、前記制御パラメータ情報を参照して求め、該求めた駆動パルスにより前記半導体光源をパルス点灯駆動する内視鏡装置。 An endoscope apparatus according to claim 5, wherein
Storage means for storing control parameter information in which a drive pulse of the semiconductor light source for an arbitrary target light amount is determined based on modulation of pulse density;
Wherein the light source control means, a drive pulse corresponding to the input target quantity, the control parameter calculated information with reference to the endoscope apparatus for pulse lighting drive the semiconductor light source by the drive pulses determined the.
前記半導体光源が、レーザ光源と、該レーザ光源からの出射光により発光する蛍光体とを備え、前記レーザ光源からの出射光と前記蛍光体からの発光光を混合して所望の照明光を生成する内視鏡装置。 The endoscope apparatus according to any one of claims 1 to 6,
The semiconductor light source includes a laser light source and a phosphor that emits light by light emitted from the laser light source, and generates desired illumination light by mixing the light emitted from the laser light source and the light emitted from the phosphor. Endoscope device.
前記半導体光源が、発光ダイオードからなる内視鏡装置。 The endoscope apparatus according to any one of claims 1 to 6,
An endoscope apparatus in which the semiconductor light source is a light emitting diode.
複数の前記発光ダイオードが、内視鏡挿入部の先端に配置された内視鏡装置。 The endoscope apparatus according to claim 8, wherein
An endoscope apparatus in which a plurality of the light emitting diodes are arranged at a distal end of an endoscope insertion portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010252263A JP5470224B2 (en) | 2010-11-10 | 2010-11-10 | Endoscope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010252263A JP5470224B2 (en) | 2010-11-10 | 2010-11-10 | Endoscope device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012100887A JP2012100887A (en) | 2012-05-31 |
| JP2012100887A5 true JP2012100887A5 (en) | 2013-07-25 |
| JP5470224B2 JP5470224B2 (en) | 2014-04-16 |
Family
ID=46392057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010252263A Active JP5470224B2 (en) | 2010-11-10 | 2010-11-10 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5470224B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2713154B1 (en) * | 2012-10-01 | 2020-01-08 | Roche Diagniostics GmbH | Light source module and method for modifying an analytical instrument for analyzing a sample |
| JP2014171511A (en) * | 2013-03-06 | 2014-09-22 | Olympus Corp | Subject observation system and method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4459709B2 (en) * | 2004-05-10 | 2010-04-28 | Ｈｏｙａ株式会社 | Fluorescence observation endoscope device |
| JP2007044245A (en) * | 2005-08-10 | 2007-02-22 | Pentax Corp | Endoscope apparatus |
| JP2007294169A (en) * | 2006-04-24 | 2007-11-08 | Toshiba Lighting & Technology Corp | Led lighting system |
| JP4943891B2 (en) * | 2007-02-23 | 2012-05-30 | パナソニック株式会社 | Light control device and lighting fixture using the same |
| JP5009651B2 (en) * | 2007-03-08 | 2012-08-22 | ローム株式会社 | Lighting device |
| JP2009056248A (en) * | 2007-09-03 | 2009-03-19 | Fujifilm Corp | Light source unit, drive control method of light source unit and endoscope |
-
2010
- 2010-11-10 JP JP2010252263A patent/JP5470224B2/en active Active
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