Automatic black card device by camera

A buckle device and camera technology, applied in cameras, filters for photography, exposure control, etc., can solve problems such as increasing the workload and difficulty of the photographer, affecting the quality of shooting, and the exposure time may not be accurate, to avoid The effects of adverse reactions, improved exposure time accuracy, and increased work difficulty

Inactive Publication Date: 2007-04-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photographers generally use black cards based on experience, and the exposure time may not be accurate based on experience, and the uneven shaking of the black card will leave imaging marks on the edge of the black card on the photo, both of which will affect the shooting quality
And when taking multiple photos, shaking the black card for a long time will increase the workload and difficulty of the photographer

Method used

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  • Automatic black card device by camera

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Effect test

Embodiment Construction

[0010] The preferred embodiment of the present invention discloses an automatic black card device for cameras, which is suitable for digital cameras or common cameras.

[0011] Referring to FIG. 1 , the automatic black card device for cameras in a preferred embodiment of the present invention includes a base 1 , a swing arm 3 , a connecting rod 5 and a black card 7 .

[0012] The base 1 is fixed on the flash socket 101 of the camera 100 , and includes an upper surface 11 , a lower surface 13 and a groove 15 defined on the upper surface 11 . The groove 15 is provided with a drive motor (not shown) and a motor control unit (not shown). The control unit is used to control the rotation speed or direction of the driving motor. When using it, the user inputs corresponding programs or instructions into the motor control unit in advance according to needs, or there are various fixed and commonly used programs or instructions in the motor control unit. , the user can select the desire...

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PUM

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Abstract

An automatic black card used on camera is prepared as fixing base with built in motor on camera and fixing one end of swing arm on base in rotary mode with another end being driven by motor to carry out swing movement then connecting one end of link to swing end of swing arm and another end to black card for finalizing movement of black card automatically by driving motor built in base.

Description

【Technical field】 [0001] The invention relates to an automatic black card device for cameras. 【Background technique】 [0002] With the popularity of cameras, consumers are no longer satisfied with simple shooting. Now many consumers start to use telescopes, wide-angle lenses, etc. that are only used in professional cameras, and some consumers even start to use more professional black cards when shooting landscapes. [0003] Photographers will be in such a situation when shooting. When shooting light and dark contrast, when the light contrast is large, the high light part will be taken into account, and the low light part will be underexposed. For example, when shooting a sunset or sunrise, the sun is not too bright, but the image of the characters is very dim, or when shooting a night scene, the scenery on the road is very clear, but the bright billboard is overexposed. This requires different exposure times in the same photo, so that different areas of the photo can be pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B11/00G03B7/18
Inventor 林国隆
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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