Reflection-type specially good effect pick-up lens
Technical field
The present invention relates to picture pick-up device field, especially, relate to a kind of pick-up lens.
Background technology
In the manufacturing process of films and television programs, it usually needs using specially good effect, one of which specially good effect is fish eye effect, i.e.
Make being partially formed of tv screen observe similar effect to wide-angle lens, be the most i.e. to be partially formed collapse at tv screen
Region, makes pixel collapse in this collapse region of periphery.
To this, at hardware aspect, fish eye lens can only be used at present, and current fish eye lens is all fixing, i.e. only
Can make that fixes on view picture image or image to be partially formed fish eye effect, and image can not be made the most flexibly and optionally
Formation fish eye effect everywhere.In order to make the dynamic fish eye effect of formation everywhere of image, software approach pair can only be passed through at present
The video pictures already taken the photograph carries out later stage process, owing to video pictures is that the picture having a large amount of frame number of continuous print is constituted, because of
This needs each frame picture is calculated and processed, and its amount of calculation is huge, and intractability is bigger.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of reflection-type specially good effect pick-up lens, this camera lens can be
Hardware view makes the formation fish eye effect everywhere of image the most flexibly and optionally, to alleviate the work of later stage special effect making
Burden.
The technical solution adopted for the present invention to solve the technical problems is: this reflection-type specially good effect pick-up lens includes main frame;
Described main frame front is provided with fixed lens;Described fixed lens front end is provided with a basic lens, and described basic lens includes one
Block and described fixed lens are the mirror surface of 45 degree of angles, make extraneous scene enter after reflecting via described mirror surface described
Fixed lens;Described mirror surface includes two pieces of transparent elastic diaphragms being parallel to each other, and forms one between these two pieces of flexible sheets
Individual hydrargyrum interlayer;The rear of described mirror surface is provided with an air nozzle, and described air nozzle is driven by universal drive mechanism so that it is
Straight air stream can be ejected into the optional position at the described mirror surface back side, and make mirror surface in the position by jet-impingement
Put and forwards arch upward, form local convex mirror.
As preferably, the rear side lining of described mirror surface sets one block of rigidity web plate, and described rigidity web plate is to described reflecting mirror
Face forms rigidity and sets off, and with the deformation backward of inhibitory reflex minute surface, and straight air stream can be made to pass rigidity web plate and rush and be mapped to reflection
The back side of minute surface.
As preferably, the spout size of described air nozzle is adjustable, to regulate the deformation characteristics of described mirror surface, thus adjusts
The scope of fish eye effect in joint video pictures.
The beneficial effects of the present invention is: this reflection-type specially good effect pick-up lens, when shooting flake specially good effect video, only need to make
The jet-impingement of air nozzle, at the back side of the mirror surface corresponding with the position forming specially good effect needed for video pictures, makes reflecting mirror
On face, arch upward forward under airflow function in corresponding region, forms local convex mirror, due to the Radix Rumicis characteristic of local convex mirror, i.e.
Local fish eye effect can be formed;Along with the air-flow free migration on described mirror surface, fish eye effect can be made to be freely formed
In video pictures everywhere.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of this reflection-type specially good effect pick-up lens.
Fig. 2 is in this reflection-type specially good effect pick-up lens, the schematic diagram of the local convex mirror that mirror surface surface is formed.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
In the embodiment shown in fig. 1, this reflection-type specially good effect pick-up lens includes main frame 1;Described main frame 1 front is provided with fixed mirror
2;Described fixed lens 2 front end is provided with a basic lens 3, described basic lens 3 include one piece with described fixed lens 2 in
The mirror surface 31 of 45 degree of angles, makes extraneous scene enter described fixed lens 2 after reflecting via described mirror surface 31;Described
Mirror surface 31 includes two pieces of transparent elastic diaphragms being parallel to each other, and forms a hydrargyrum interlayer between these two pieces of flexible sheets;
The rear of described mirror surface 31 is provided with an air nozzle 4, and described air nozzle 4 is driven by universal drive mechanism 41 so that it is permissible
Straight air stream is ejected into the optional position at described mirror surface 31 back side, and makes mirror surface 31 in the position by jet-impingement
Put and forwards arch upward, as in figure 2 it is shown, form local convex mirror 310.
It addition, in the present embodiment, the rear side of described mirror surface 31 also serves as a contrast and sets one block of rigidity web plate 32, described rigidity web plate
32 pairs of described mirror surfaces 31 form rigidity and set off, and with inhibitory reflex minute surface 31 deformation backward, and straight air stream can be made to pass just
Property web plate 32 and rush and be mapped to the back side of mirror surface 31.
Above-mentioned reflection-type specially good effect pick-up lens, when shooting flake specially good effect video, only need to make the jet-impingement of air nozzle 4 exist
The back side of the mirror surface 31 corresponding with the position forming specially good effect needed for video pictures, makes corresponding region on mirror surface 31
Arch upward forward under airflow function, form local convex mirror 310, due to the Radix Rumicis characteristic of local convex mirror 310, office can be formed
Portion's fish eye effect;Along with the air-flow free migration on described mirror surface 31, fish eye effect can be made to be freely formed in video
Picture is everywhere.
It addition, the spout size of described air nozzle 4 is adjustable, to regulate the deformation characteristics of described mirror surface 31, i.e. spout
Time less, in the case of equal jet amount, owing to, in air flow collection, making arching upward of described local convex mirror 310 deep, curvature is relatively
Greatly, fish eye effect is more concentrated and strong;And spout bigger time, then the scope of local convex mirror 310 is relatively big, fish eye effect scope
Big and plain;Certainly, while tuning up at spout, synchronize to increase jet amount, fish eye effect both scopes can be made big, the strongest
Strong.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any amendment of being made, equivalent, should be included within the scope of the present invention.