CN2325794Y - Mirror-turning type shutter - Google Patents
Mirror-turning type shutter Download PDFInfo
- Publication number
- CN2325794Y CN2325794Y CN 98213604 CN98213604U CN2325794Y CN 2325794 Y CN2325794 Y CN 2325794Y CN 98213604 CN98213604 CN 98213604 CN 98213604 U CN98213604 U CN 98213604U CN 2325794 Y CN2325794 Y CN 2325794Y
- Authority
- CN
- China
- Prior art keywords
- rotating cylinder
- fixed
- housing
- motor
- shutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The utility model discloses a mirror-turning type shutter. The utility model is characterized in that a rotary barrel 1 is fixed on a camera casing 2 and can rotate within an angle of 360 DEG; a reflector 5 is fixed in the rotary barrel 1 at an angle of 45 DEG. A ground glass 3 is arranged in the rotary barrel 1 and fixed to the camera casing 2. An optical shutter 4 is arranged on the rotary barrel, opposite to the reflector 5. A motor 7 is fixed on the camera casing 2; a driving wheel contacts completely with the rotary barrel 1. A control part is connected with the motor 7. The utility model has the advantages of no shake, clear imaging, convenient and quick operation, low cost, etc., which is suitable for various model cameras and replaces a shoot mode of large size imaging by a ground glass of a traditional camera.
Description
The utility model relates to the improvement of view finder lens and shutter physical construction
Present existing single-lens reflex camera shutter all adopts the reflective mirror that 45 ° of inclinations are set in the film front, the light of taking in from camera lens can not shine directly into film, reflexed on the frosted glass by reflective mirror, adjust by view finder focusing distance, on the screen of finding a view, see image clearly.When pressing shutter, reflective mirror upwards lifts, and light is entered, and exposes by shutter, lifts the vibrations that catoptron can produce camera simultaneously, and the acutance of photo is descended, and is more obvious to slow-speed shutter, and is mingled with noise.If significantly camera can shake more seriously when loading onto the reflective mirror that so (ratio) is big, and cause and can't use, beg till the present, significantly camera still prolongs with traditional frosted glass machine and carries on the back the formula of finding a view.Promptly cover the lastblock black cloth on camera, after bringing into focus, remove frosted glass earlier, load onto magazine, pull off plate, press shutter again and take pictures, very heaviness bothers again.
It is a kind of shockproof that the purpose of this utility model is to provide, various cameras, particularly the rotary mirror type shutter that all is suitable for of camera significantly.
The utility model is made up of rotating cylinder, reflective mirror, frosted glass, optical gate, motor and control section.Rotating cylinder is fixed on the housing, and 360 ° free to rotate.Reflective mirror is fixed in the rotating cylinder and focal plane and frosted glass angle all at 45.Frosted glass be arranged in the rotating cylinder and fix with housing and with focal plane at an angle of 90.Optical gate is opened on the rotating cylinder, and is relative with reflective mirror.Motor is fixed on the housing, and power wheel fully contacts with rotating cylinder.Control section and motor utilize lead to be connected.
Wherein the microswitch of control section, power supply are fixed in the housing, and shutter release button, speed regulator are installed on the housing respectively, touch to sell to be arranged on the rotating cylinder and also fix.Connect by lead between each element.
The utility model is owing to simplified complicated reflective mirror mechanical driving part, cancelled focal plane shutter, reflective mirror and shutter are united two into one, and adopt rotation mode that reflective mirror such as is removed at means, it is steady, shockproof to make it have a motion, has eliminated noise, improve the camera of tying image sharpness, being applicable to all size, replaced the significantly cumbersome mode of operation of camera of traditional type, also have simultaneously easy to use, quick, low cost and other advantages.
Accompanying drawings embodiment:
Fig. 1, be rotary mirror type shutter stereo structural profile synoptic diagram;
Fig. 2, be rotary mirror type shutter control section circuit theory diagrams.
Learnt by Fig. 1-2: the utility model is made up of rotating cylinder 1, reflective mirror 5, frosted glass 3, optical gate 4, motor 7 and control section.Rotating cylinder 1 is fixed on the housing 2, and 360 ° free to rotate.Reflective mirror 5 is fixed in the rotating cylinder 1 and focal plane 8 and frosted glass 3 angles at 45.Frosted glass 3 is arranged in the rotating cylinder 1 and with housing 2 and fixes.Optical gate 4 is opened on the rotating cylinder 1, and is relative with reflective mirror and openings of sizes is adjustable.Motor 7 is fixed on the housing 2, and power wheel fully contacts with rotating cylinder 1, and the high speed rotating by motor 7 drives rotating cylinder 1 and rotates rapidly.Control section and motor 7 utilize lead to be connected, and play the 7 starting and stopping effects of control motor.
Wherein the microswitch 12 of control section, power supply 11 are fixed in the housing 2, shutter release button 9, speed regulator 13 is installed in respectively on the housing 2, touch that pin 10 is arranged on the rotating cylinder lateral wall and fixing, and it is in the light of just in time camera lens 6 being taken in when touching microswitch 12 and all reflexes to position on the frosted glass 3.Its work is achieved in that the rotary mirror type shutter can be made multiple model and the housing 2 that adapts matches with existing various camera lens 6 and film loader, also can establish the slide viewer that adapts with it in addition at the view window place simultaneously.Install camera lens 6, film loader and slide viewer.Owing to be in the state of finding a view before taking pictures, touch pin 10 and contact with microswitch 12, rotating cylinder is in static, and reflective mirror 5 will reflex on the frosted glass 3 from the light that camera lens 6 enters, and utilize slide viewer or directly observe from observation window, and the adjusting camera lens is found a view.Touching, shutter release button 9 makes operation circuit moment pressure conducting, motor 7 drives rotating cylinder 1 quick rotation, touch pin 10 this moment and guarantee rotating cylinder one week of 1 fast rotational with microswitch 12 disengaging control line rood electricity, open at rotation while optical gate 4, light passes optical gate 4 and arrives film plane 8, exposes.Shake-up pin 10 returns to again with microswitch 12 and contacts, the operation circuit outage, and motor 7 and rotating cylinder 1 stop operating.Finish the once task of taking.According to circumstances differently can regulate the light-inletting quantity that speed regulator 13 changes the rotating speed of motors 7 and adjust optical gate 4 and guarantee shooting quality.To reach the purpose of this utility model.
Claims (2)
1, a kind of rotary mirror type shutter, be by rotating cylinder (1), reflective mirror (5), frosted glass (3), optical gate (4), motor (7) and control section are formed, it is characterized in that rotating cylinder (1) is fixed on the housing (2), and 360 ° free to rotate, reflective mirror (5) is fixed in the rotating cylinder (1) and focal plane (8) and frosted glass (3) angle all at 45, frosted glass (3) is arranged in the rotating cylinder (1) and with housing (2) and fixes, and with focal plane (8) at an angle of 90, optical gate (4) is opened on the rotating cylinder (1), and it is relative with reflective mirror (5), motor (7) is fixed on the housing (2), power wheel fully contacts with rotating cylinder (1), and control section and motor (7) utilize lead to be connected.
2, according to claim 1: a kind of rotary mirror type shutter, the microswitch (12), the power supply (11) that it is characterized in that control section are fixed in the housing (2), shutter release button (9), speed regulator (13) are installed in respectively on the housing (2), shake-up pin (10) is arranged on rotating cylinder (1) and goes up and fix, and connects by lead between each element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213604 CN2325794Y (en) | 1998-05-08 | 1998-05-08 | Mirror-turning type shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213604 CN2325794Y (en) | 1998-05-08 | 1998-05-08 | Mirror-turning type shutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325794Y true CN2325794Y (en) | 1999-06-23 |
Family
ID=33967498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98213604 Expired - Fee Related CN2325794Y (en) | 1998-05-08 | 1998-05-08 | Mirror-turning type shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325794Y (en) |
-
1998
- 1998-05-08 CN CN 98213604 patent/CN2325794Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |