CN87216565U - Rotary type multipurpose light path separating hood for photo camera - Google Patents

Abstract

The utility model relates to a device to carry out times rotation and separation for an imaging beam in an optical axial plane which is vertical to the imaging beam, and the utitity model is positioned on a 135 camera lens. The device carrying out more times separation and exposure for a negative is realized by the combination of a lightproof stator plate which can rotate by 360 DEG, a lightproof rotor plate which can rotate by 90 DEG relative to the lightproof stator plate and a shutter independent upper chord mechanism. The utility model has novel design, good manufacturability, convenient production and manufacture and simple structure. The utility model can separate and expose for times for the negative without carrying out complicated improvement for the camera, and the utility model is an ideal device for camera separation photography.

Description

Rotary type multipurpose light path separating hood for photo camera

The utility model is that the innovation of 135 cameras is created, and refers to that especially a kind of being used for repeatedly rotate the Multipurpose cover of cutting apart to imaging beam on 135 camera lens in perpendicular to optical axial plane.It belongs to IC G03B class.

In when photography, desire to want to make camera on an egative film, photograph a plurality of independently scenery or portrait, usual way is to use the polygon prism lens shooting on camera.Single exposure just can be got the photo of the same expression of a few Zhang Tongyi individuals or the photo of same scenery behind the photo of enlarging and print.This lens assembly that makes according to the light refraction principle, the photo sharpness of shooting is relatively poor, and colour reproduction is also poor, and egative film can only single exposure, can not multiexposure, multiple exposure.It is also higher to acquire the price of buying a polygon prism camera lens in addition, so present general this method of less employing.

Another kind method is to put a gate-type shielding plate in the camera lens front of 135 cameras, and this shielding plate is that activity can be turned over.During photography, will not cover part egative film single exposure earlier, shielding plate is turned over covers exposed portion egative film then, and remaining egative film carries out re-expose.Because this machine has only the re-expose shielding plate, can not more times expose, the enjoyment that these people are taken pictures with it is restricted.Seem very inconvenient when being located on the bottom of camera operation again with the handle of the shutter independence string holder of gate-type shielding plate coupling in addition, thereby also be not subjected to people's welcome.

For eliminating all shortcoming of said method, the utility model proposes a kind of new camera attachment device, use this attachment device, not adopting said method can carry out cutting apart for 2～4 times photography and guarantee to cut apart on an egative film during photography does not misplace, thereby improved the image quality of camera, reduced the photography cost.

Its solution is: cut apart Multipurpose cover in camera lens pre-installed one rotary light path, it is repeatedly rotated by this Multipurpose cover in perpendicular to optical axial plane the imaging beam that enters camera lens cut apart.This cover is by set nut, and light shield, rotation ring seat, handle shading moving plate, change shading stator constitute.Change shading stator can be done 360 ° and rotate handle shading moving plates and relatively rotate the shading stator and do 90 ° of rotations rotating on the ring seat, and realizes that with the shutter independence remontoir coupling of camera egative film is carried out multiexposure, multiple exposure to be backed out and rotate ring seat this cover and also can make light shield usefulness separately.The rotation ring seat of backing out can be installed on the camera that camera lens aperture is M55, with the coupling of camera shutter independence remontoir, egative film is carried out multiexposure, multiple exposure.

During shooting,, then can unload Multipurpose cover from camera lens if do not need egative film is carried out multiexposure, multiple exposure.This cover uses extremely simple, and convenient and reliable operation as long as camera and this cover coupling of shutter independence remontoir are arranged, all can reach the purpose of egative film being carried out multiexposure, multiple exposure.

Accompanying drawing has been described an embodiment of the present utility model, now is described in detail below in conjunction with the accompanying drawings:

Fig. 1 is the installation site synoptic diagram of the utility model on camera;

Fig. 2 is a right view of the present utility model;

Fig. 3 is a front view of the present utility model.

As shown in Figure 1, 2, 3, cut apart Multipurpose cover (1) by the rotary light path of set nut (3), light shield (4) swivel becket cover (5), handle shading moving plate (6), change shading stator (7) formation and be installed on the camera lens, shutter independence remontoir handle (2) is in the lower right side of camera lens.

During photography, rotary light path is cut apart Multipurpose cover (1) screw on the camera lens, imaging beam is at first cut apart by the change shading stator (7) on the Multipurpose cover (1) in perpendicular to optical axial plane.This moment is as if the right or the left side of change shading stator (7) with camera lens, top or bottom cover, then photographed image on the left side, visual field or the right, bottom or top, and carry out secondary splitting with shutter independence remontoir handle (2) coupling and expose.Doing 3～4 times cuts apart when exposing, pull handle shading moving plate (6) to extreme position, make its 3/4 part that covers camera lens, unshaded 1/4 logical light is partly aimed at by the photography image, and with shutter independence remontoir handle (2) coupling egative film is carried out 3～4 times and cut apart exposure.

The utility model modern design, good manufacturability is convenient to manufacture with simple structure, need not carry out complicated improvement to camera and just can carry out the repeated segmentation exposure to egative film; The real ideal device of cutting apart photography for camera

Claims (3)

1, a kind of being used for repeatedly rotated the Multipurpose cover of cutting apart (1) to imaging beam on 135 camera lens in perpendicular to optical axial plane, and this Multipurpose cover (1) is made of set nut (3), light shield (4), rotation ring seat (5), handle shading moving plate (6), change shading stator (7).It is characterized in that: handle shading moving plate (6) can be done 90 ° of rotations with respect to change shading stator (7), change shading stator (7) can be done 360 ° of rotations on rotation ring seat (5), and with the coupling of camera shutter independence remontoir, realize egative film is carried out multiexposure, multiple exposure.

2, according to the described Multipurpose cover of claim 1, it is characterized in that: back out and rotate ring seat (5), this cover can be made light shield separately and use.

3, according to the described Multipurpose cover of claim 1, it is characterized in that: the rotation ring seat of backing out (5) can be installed on the camera that camera lens aperture is M55, with the coupling of shutter independence remontoir, egative film is carried out the repeated segmentation exposure.

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