Automatic black card device by camera

A snap-on device and camera technology, applied to cameras, filters for photography, exposure control, etc., can solve problems such as affecting the shooting quality, increasing the photographer's workload and difficulty, and the exposure time is not necessarily accurate. The effect of improving time accuracy, avoiding adverse reactions, and increasing the difficulty of work

Inactive Publication Date: 2009-08-19
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

Examples

Experimental program
Comparison scheme
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] see figure 1 , the camera automatic black card device of the 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 desired fixed prog...

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PUM

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Abstract

The invention discloses an automatic black card device for a camera, which includes a base, a swing arm and a connecting rod, the base is fixed on the camera, and a driving motor is arranged inside the base; one end of the swing arm is rotatably fixed On the base, the other end is driven by the drive motor to swing; one end of the connecting rod is connected to the swing end of the swing arm, and the other end is connected to the black card. Because the shaking of the black card is automatically completed by the drive motor installed in the base, the black card can be easily used without rich experience or professional technology.

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 Patents(China)
IPC IPC(8): G03B11/00G03B7/18
Inventor 林国隆
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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