CN2055945U

CN2055945U - Indirect multi-azimuth view-finder for horizon camera

Info

Publication number: CN2055945U
Application number: CN 89217804
Authority: CN
Inventors: 李贤浩
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-10-07
Filing date: 1989-10-07
Publication date: 1990-04-11

Abstract

The utility model relates to a camera viewfinder which solves the problems of monocular and horizontal view and difficult in taking pictures when using the existing cameras with rear view eyepiece windows. The main technical character of the camera viewfinder is that the inner cavity of the camera viewfinder is provided with a group of optical glass. After the group of optical glass amplifies the scenery, the group of optical glass directly appears at the relative big screen plate and reserves the original horizontal view function. The utility model is an ideal camera viewfinder having the advantages of clarity, monitoring convenience, etc.

Description

Indirect multi-azimuth view-finder for horizon camera

A kind of photograph resembles the machine view finder, especially looks squarely camera with indirect multi-faceted view finder.

People are using when resembling machine, a common eyes closed, and another eyes are looked squarely the eyepiece of aiming at according to resembling the machine back, after regulating aperture, speed and distance, press shutter.Because existing according to resembling the simple eye supervision of machine, giving takes pictures makes troubles.

The utility model purpose is, designing a kind of optical glass that utilizes will be directly reflected into and look squarely camera with indirect multi-faceted view finder on the screen window according to resembling scenery in the machine eyepiece.

The utility model technical solution: in the view finder inner chamber, find a view mouthful preceding convex lens at place with corresponding according to resembling the eyepiece window, form a new lens combination make in the eyepiece scenery through preceding convex lens be refracted to the isosceles triangle prism or with horizontal sextant angle be on the level crossing of α (α=45), to change the direction of object transmission ray, at last be fit to imaging on the screen board that the person of videotaping monitors angle, at ordinary times simple eye looked squarely supervision change eyes into and face supervision; Also can still can keep looking squarely function, thereby reach the utility model purpose by back convex lens and sub-screen.

The utility model advantage: this product is applicable to that all that have the eyepiece window look squarely according to resembling machine.When this product being fixed on when resembling on the machine, just can pass through greater than eyepiece window twice, become the screen board of best angle with the person of videotaping, directly monitor scenery.Therefore this device has advantages such as the visual angle is big, clear, supervision is convenient, is to improve the comparatively ideal photograph of photographic quality to resemble the machine view finder.

Below in conjunction with description of drawings the utility model most preferred embodiment.

Fig. 1 is by resembling fixing structural representation of machine flash socket and corresponding index path thereof with Original Photo.

Fig. 2 is that the utility model is by adjustable plate and according to resembling fixing structural representation of machine and corresponding index path thereof.

Fig. 3 is that the back convex lens are parallel with sub-screen with preceding convex lens, schematic appearance that is used to look squarely and corresponding index path thereof.

In Fig. 1～3,1 according to resembling machine, 2 according to resembling machine eyepiece, 3 according to resembling screen, 17 protective shields, 18 adjusting knobs, 19 adjustable plates, 20 flash sockets, 21 prism supporting plate knobs, 22 level crossings, 23 view finder mouths on the former flash socket of machine, 4 preceding convex lens, 5 threaded sleeves, 6 view finder shells, 7 bottoms, 8 prism supporting plates, 9 isosceles triangle prisms, 10 springs, 11 back convex lens, 12 back convex lens supporting plates, 13,14 rotating shafts, 15 sub-screens, 16.Catoptron between preceding convex lens 4 and last screen 16 can be isosceles triangle prism (as shown in Figure 2), or with horizontal sextant angle be α (α=45) level crossing 22(as shown in Figure 1), in addition, for image is reflected on the screen clearly, the preceding convex lens 4 of this device can move by threaded sleeve is forward and backward; In order to keep looking squarely function (but being that eyes monitor at this moment), the upper and lower edge of prism supporting plate 8 or level crossing 22 links to each other with back convex lens supporting plate 12 with view finder shell 6 with 14 by rotating shaft 13 respectively, makes back convex lens 11 parallel with sub-screen 15 with preceding convex lens 4 by prism supporting plate knob 21 and rotating shaft 13,14.

When reality is used, at first can resemble machine structure choice Fig. 1 or fixed form shown in Figure 2 according to the photograph of oneself, secondly view finder mouth 23 being resembled machine eyepiece window 2 by adjustable plate 19 and adjusting knob 18 with photograph is connected, last expansion protection plate 17, by regulating threaded sleeve 5, the longitudinal separation of convex lens or according to resembling the focusing ring of machine itself promptly just can be selected materials such as frosted glass for use at last screen 16 or the upper and lower screen of sub-screen 15(), see be exaggerated, image clearly.

Claims

1, a kind of comprise lens, frosted glass look squarely camera with indirect multi-faceted view finder, its feature is between preceding convex lens 4 and last screen 16;

A, an isosceles triangle prism 9 is arranged, or

B, with horizontal sextant angle be the level crossing 22 (α=45 °) of α.

2, the camera of looking squarely according to claim 1 is with indirect multi-faceted view finder, and its feature: the upper and lower edge of prism supporting plate 8 or level crossing 22 links to each other with back convex lens supporting plate 12 with view finder shell 6 with 14 by rotating shaft 13 respectively.

3, the camera of looking squarely according to claim 1 and 2 is with indirect multi-faceted view finder, its feature: can link to each other with view finder shell 6 by threaded sleeve 5 by forward and backward mobile preceding convex lens 4.