Special exposure device used for camera, and camera

An exposure device and camera technology, applied to cameras, photographic filters, exposure control, etc., can solve the problems of operation failure and high requirements of photographers, and achieve the effects of easy control, true color reproduction, and convenient operation

Inactive Publication Date: 2017-05-10
广西那还用问信息技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, manual shaking of black cards has extremely high requirements for photographers, which often leads to operation failure.

Method used

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  • Special exposure device used for camera, and camera
  • Special exposure device used for camera, and camera
  • Special exposure device used for camera, and camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A special exposure device for cameras:

[0029] The device comprises a power supply box 2, a power supply box support 22, a motor 3, a motor support 32, a connecting rod transmission 4 and a black card 5; the power supply box 2 is used to supply power to the motor 3 and control the motor speed operation; the motor 3 The electric wire 6 is connected to the power box 2, and the black card 5 is connected to the rotating shaft 31 of the motor 3 through the connecting rod transmission 4 to realize up and down movement;

[0030] Such as figure 1 As shown, in the state of use, the power box 2 is installed on the camera 1 through the power box bracket 22, the motor 3 is installed on the camera hood through the motor bracket 32, and the black card 5 is close to the camera from top to bottom. The front mirror of the lens covers the bright position when shooting, starts the motor 3, and adjusts the rotating speed of the motor 3 so that the motor 3 drives the black card 5 to move ...

Embodiment 2

[0038] A camera with a special exposure function:

[0039] The camera includes a camera body and a special exposure device for a camera described in Embodiment 1, and the special exposure device is installed on the camera body.

[0040] The operation method of using the camera of the present invention: in common scenes, the horizontal plane is generally used as the boundary point between the bright part and the dark part. The position of the bright part shakes up and down rhythmically (4-5 times per second is best), that is, the range of shaking needs to exceed the cut-off point (for example, 0.3 cm below the cut-off point), which can make the transition between light and dark parts of the photo more natural. The frequency of shaking the black card will vary depending on the occasion. If the light ratio between the two areas is not large, the frequency of shaking the black card is lower; on the contrary, when the light ratio is large, the frequency of shaking the black card is...

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PUM

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Abstract

The invention discloses a special exposure device used for a camera. The device comprises a power box, a power box bracket, a motor, a motor bracket, a connecting rod transmission device and a black card, wherein the motor is in circuit connection with the power box through an electric lead; the black card is connected with the rotation shaft of the motor through the connecting rod transmission device to realize vertical movement; under a use state, the power box is installed on the camera through the power box bracket; the motor is installed below the lens hood of the camera through the motor bracket; the black card approaches to the front lens of a camera lens from top to bottom; when a bright position during shooting is covered, the motor is started; and the revolving speed of the motor is regulated to enable the rotor to drive the black card to vertically move for corresponding frequency to realize a special exposure effect. The special exposure device disclosed by the invention can adapt to the requirement of a black card shaking technology. The automatic black card shaking frequency of the device is stable, and the success rate of special exposure is greatly improved. A special exposure photo shot by the camera of the invention has the advantages of natural light and shade transition and true color rendition.

Description

technical field [0001] The invention relates to a camera and its auxiliary device, in particular to a special exposure device for the camera and the camera. Background technique [0002] When we are shooting scenery, we will inevitably encounter some environments with high light ratios, that is, when the contrast between the upper and lower light ratios is too large, simply speaking, the light part will be severely overexposed when the light metering is based on the dark part, or the bright part will be severely overexposed. When using partial metering as the basis, the dark part is dark to no detail, and the camera is different from our naked eyes, which can automatically adjust. The limited latitude of the camera cannot take into account the highlights and dark parts well. For example, the sky and the ground, if the light ratio is too high, we will find that either the dark part is dead black or the sky is dead white after shooting. At this time, we will use some special ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B7/18G03B11/04
CPCG03B7/18G03B11/04
Inventor 陈诚万鸣曦赫鸣曦
Owner 广西那还用问信息技术股份有限公司
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