Dedicated magnifier for digital camera

A digital camera and magnifying glass technology, applied in the field of instrument cleaning, can solve the problems of destroying the picture quality, small spots, and inability to see clearly, and achieve the effects of clear observation, simple structure, and elimination of halos
CN105319701AInactive Publication Date: 2016-02-10XIAN SIKUN ELECTRONICS SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN SIKUN ELECTRONICS SCI & TECH
Publication Date
2016-02-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dedicated magnifier for a digital camera. The magnifier is characterized in that the magnifier comprises a magnifying lens, a light source, sight glass and a shell; the magnifying lens, the light source and the sight glass are fixed to the shell; the magnifying lens is a combined lens formed by two flat convex lens with different curves; when the planes of the two flat convex lenses are opposite, the amplifying times of the combined lens are more than or equal to 5; the light guide part of the light source is a foggy LED; the diameter of the LED is more than or equal to 5mm. The dedicated magnifier belongs to the apparatus cleaning field, is suitable for observing the dust on the lens surface of an apparatus and especially suitable for observing the dust on a surface of an image sensor of a digital single lens reflex camera and in a cavity. The dedicated magnifier aims at eliminating halos generated on a CCD / CMOS surface of the digital camera and clearly observing the dust and a cleaning degree of the surface of the image sensor of the digital single lens reflex camera. The magnifier is simple in structure and the halos generated on the surface of the digital camera are effectively eliminated.
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Description

technical field

[0001] The invention relates to a special magnifying glass for a digital camera, which belongs to the field of instrument cleaning and is suitable for observing the dust on the mirror surface of the instrument, especially for observing the dust on the surface of an image sensor of a digital single-lens reflex camera and in a cavity. Background technique

[0002] Digital cameras do not use traditional photosensitive film to record images, but use photoelectric conversion sensors, CCD or CMOS. When changing the lens of a digital SLR camera, it is easy to bring dust in the air into the body and attach to the surface of the image sensor. The dust will cause small spots in the image and damage the image quality. Since fine dust cannot be observed with the eyes, the existing inspection method is to judge by observing the captured image. This method is not easy to detect dust accurately and in time, and cannot find the defect of dust on the surface of the image sens...

Claims

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