Lighting apparatus, electronic flash apparatus and camera

• US 20060008266A1
• Filed: 09/16/2005
• Published: 01/12/2006
• Est. Priority Date: 01/21/2003
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Kawakami, Chikuni
• Granted Patent: US 7,224,894 B2
• Time in Patent Office: Days
• US Class Current: 396/175
• CPC Class Codes: G03B 15/05 Combinations of cameras with electronic flash apparatus; Electronic flash units
• CPC Class Codes: G03B 2215/0503 Built-in units
• CPC Class Codes: G03B 2215/0567 Solid-state light source, e.g. LED, laser
• CPC Class Codes: G03B 2215/0582 Reflectors
• CPC Class Codes: G03B 2215/0592 installed in front of light emitter
• CPC Class Codes: H04N 23/56 provided with illuminating means

Abstract

A lighting apparatus comprising: a reflecting surface for reflecting light, formed on a circuit board; an LED light source for emitting illumination light with a light-emitting diode, mounted on a part of said reflecting surface; and a reflector for reflecting ahead the light emitted from said LED light source, mounted on said circuit board so as to surround said LED light source and have the opened rear thereof closed by said reflecting surface.

Claims

1. An electronic flash apparatus comprising:

a light-emitting portion having an LED light source for emitting illumination light with a light-emitting diode, and a reflector for reflecting ahead the light emitted from the LED light source; and

a lens for expanding and flooding ahead the light emitted from the light-emitting portion, placed in front of said light-emitting portion.

2. The electronic flash apparatus according to claim 1, wherein an optical element for diffusing the light emitted from said LED light source is placed between said LED light source and said lens.

3. The electronic flash apparatus according to claim 2, wherein said optical component diffuses the light emitted from said LED light source and also converts it into predetermined color temperature.

4. The electronic flash apparatus according to claim 1, further comprising a movement device which relatively moves said light-emitting portion and said lens in an optical axis direction, and changes an irradiation angle of the light emitted from said lens by relatively moving said light-emitting portion and said lens in the optical axis direction with the movement device.

5. The electronic flash apparatus according to claim 2, further comprising a movement device which relatively moves said light-emitting portion and said lens in an optical axis direction, and changes an irradiation angle of the light emitted from said lens by relatively moving said light-emitting portion and said lens in the optical axis direction with the movement device.

6. The electronic flash apparatus according to claim 3, further comprising a movement device which relatively moves said light-emitting portion and said lens in an optical axis direction, and changes an irradiation angle of the light emitted from said lens by relatively moving said light-emitting portion and said lens in the optical axis direction with the movement device.

7. The lighting apparatus according to claim 1, wherein said LED light source is comprised of three types of LED light sources for emitting red light, green light and blue light, and the LED light source for emitting the light in each color is radially placed.

8. A camera comprising:

a camera body; and

the electronic flash apparatus of claim 1 arranged in the camera body.