Invention Grant
- Patent Title: Illumination device and method, and apparatus for image taking
- Patent Title (中): 照明装置和方法以及摄像装置
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Application No.: US12050573Application Date: 2008-03-18
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Publication No.: US08385735B2Publication Date: 2013-02-26
- Inventor: Kouhei Awazu
- Applicant: Kouhei Awazu
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-070268 20070319
- Main IPC: G03B7/16
- IPC: G03B7/16 ; G03B7/22

Abstract:
An illumination device for a camera includes a light source, in which LED chips are supplied with a drive current, for emitting light of a first color at intensity according to the drive current. An encapsulant is disposed in front of each LED chip, for changing an illuminating color of the light. An EEPROM stores a data table for representing a correlation between the illuminating color and the drive current. An illumination control unit obtains first drive current associated with a target color of light for use by referring to the data table, to drive the LED chips with the first drive current. Phosphor in the encapsulant sets color temperature of the light lower upon passage through the encapsulant than upon emission from the LED chips.
Public/Granted literature
- US20080232079A1 ILLUMINATION DEVICE AND METHOD, AND APPARATUS FOR IMAGE TAKING Public/Granted day:2008-09-25
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