Title:
光源装置
Document Type and Number:
Japanese Patent JP5165400
Kind Code:
B2
Abstract:
Provided is a light source apparatus capable of outputting light with a high light level stably and efficiently. The light source apparatus is provided with a plurality of light source device that are disposed on a ring and that emit illumination light toward the central axis of the ring by being lit in a sequential pulsed fashion; a light-guide portion having a light entrance surface that is rotatably disposed on the central axis and on which the illumination light emitted from the light source devices is incident, and a reflecting surface that reflects the incident illumination light in the direction along the central axis; and a driving device that controls a pulsed-lighting phase range, which is a period during which the light source devices are lit according to the rotation phase of the light-guide portion; wherein the driving device controls the pulsed-lighting phase range (W) such that, when the pulsed-lighting phase range (W) is shorter than a maximum-pulse phase range (M), which is the longest period during which the illumination light emitted from the light source devices is incident on the light entrance surface, a preceding light-out phase range (F) and a succeeding light-out phase range (R), which are periods during which the light source devices are turned off, are provided before and after the pulsed-lighting phase range (W) in the maximum-pulse phase range (M).
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Inventors:
Yoshinori Ikeda
Application Number:
JP2008012488A
Publication Date:
March 21, 2013
Filing Date:
January 23, 2008
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
H05B37/02; A61B1/04; A61B1/06; F21S2/00; F21V14/02; F21Y101/02
Domestic Patent References:
| JP2004199024A | ||||
| JP2004071393A | ||||
| JP2003344948A |
Attorney, Agent or Firm:
Kunio Ueda
Noriharu Fujita
Noriharu Fujita