Illumination apparatus, control method therefor, illumination system, and image pickup apparatus

A technology for lighting equipment and camera equipment, which is applied in the parts of TV systems, photography, and image analysis.

Active Publication Date: 2019-03-05
CANON KK
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, when shooting with lighting equipment, the photographer may miss the shutter opportunity
In addition, in terms of making the respective color temperature information of a plurality of lighting devices the same, the charging voltage and the amount of light emitted by the plurality of lighting devices are limited, which makes it difficult to adjust the amount of light

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Illumination apparatus, control method therefor, illumination system, and image pickup apparatus
  • Illumination apparatus, control method therefor, illumination system, and image pickup apparatus
  • Illumination apparatus, control method therefor, illumination system, and image pickup apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, an example of a lighting device according to an embodiment of the present invention will be described with reference to the drawings.

[0028] figure 1 is a diagram showing the structure of an example of an imaging apparatus including the lighting apparatus according to the first embodiment of the present invention. figure 2 is showing figure 1 Diagram of the structure of the imaging device in , with a part of it truncated.

[0029] refer to figure 1 and 2 , the imaging apparatus shown in the figure is, for example, a digital camera (hereinafter simply referred to as a camera) having a camera body 100 . An interchangeable taking lens unit (shooting optical system: hereinafter simply referred to as taking lens) 200 is attached to the camera body 100 . A detachably mounted lighting device (flash device: hereinafter simply referred to as a flash) 300 is mounted to the camera body 100 .

[0030] The flash 300 has a first light emitting unit 300a and a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an illumination apparatus, a control method therefor, an illumination system, and an image pickup apparatus. The illumination apparatus is capable of suppressing a mismatch between color temperature information for each of a plurality of light emitting units that illuminate a subject with light. Whether an optical accessory for toning or adjusting a light distribution angleis attached is detected for each of the plurality of light emitting units. The color temperature information indicative of a color temperature in a light emission when the plurality of light emittingunits are caused to emit the light is decided according to light emission information indicative of a light emission state in each of the plurality of light emitting units and a detection result.

Description

technical field [0001] The present invention relates to a lighting device and a control method thereof, a lighting system, and an imaging device, and particularly to a lighting device including a plurality of light emitting units. Background technique [0002] In general, a lighting device used with an imaging device such as a digital camera transmits color temperature information of light when emitted to the imaging device, which in turn performs white balance adjustment based on the color temperature information. [0003] Figure 10 is a perspective view showing an example of a conventional lighting device. [0004] The lighting device 1000 shown in the figure is a so-called general clip-type lighting device that is detachably attached to an imaging device (not shown) and has one light emitting unit 1001 . Since the lighting device 1000 has one light emitting unit 1001, the imaging device determines white balance based on color temperature information in light emission fr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232H04N5/235H04N9/04H04N9/73G03B15/05
CPCG03B15/05H04N23/56H04N23/60H04N23/74H04N23/10H04N23/88G03B2215/0553G03B2215/056G06T7/521G03B2215/05H04N23/71
Inventor 齐藤庆一郎
Owner CANON KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap