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#1
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
Any idea where I might find a data sheet for a camera iris motor?
In particular I'm trying to find out what kind of signal is output via the feedback winding. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
#2
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
On Sat, 21 Jun 2014 10:22:38 -0700, Jim Thompson wrote:
Any idea where I might find a data sheet for a camera iris motor? In particular I'm trying to find out what kind of signal is output via the feedback winding. ...Jim Thompson Unless it's a very low volume camera, the motor is probably custom made; you won't be able to get a data sheet. You might be able to get data sheets for similar motors but there is no guarantee how closely yours will match. You might try contacting the camera manufacturer; they might be sympathetic, but that isn't likely. Your best bet is to test the motor and develop your own data. Jim Mueller -- Jim Mueller To get my real email address, replace wrongname with dadoheadman. Then replace nospam with fastmail. Lastly, replace com with us. |
#3
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
Jim Thompson wrote:
camera iris motor The BabyBird (GooGull) sez: [PDF] Auto-iris Motorized Zoom Lenses - Bosch Security Systems resource.boschsecurity.com/.../Data_sheet_enUS_2191260299.pdf camera optic features. Lenses in this series include 10x, 15x, and 20x zoom range models. Some models provide optional pre- position and manual iris override ... *** Covers the lenses, not the motors. [PDF] D22x9.1B-Y41 - Fujifilm http://www.fujifilm.com/products/opt...x91b-y41_e.pdf Fujifilm Wiring. D22x9.1B-Y41. Focal Length (mm). 9.1 - 200(22x). Iris Range. F1.2 - T1500(Equivalent to F1500). Operation. Zoom. Motor Drive. Focus. Motor Drive. Iris. *** Useless for your needs; one pager,lens wiring. *** Next 2 are for the drivers, and maybe useful. [PDF] AN41908A - Semiconductor www.semicon.panasonic.co.jp/.../AN41908A_AE... Panasonic Corporation AN41908A is a lens motor driver IC for camcorder and security-camera featuring the functions of Iris control. ..... Register input / output signal specification. SCLK. [PDF] AN41919A - Semiconductor www.semicon.panasonic.co.jp/.../AN41919A_E.p... Panasonic Corporation AN41919A is a DC IRIS control LSI for IP camera and security ... and is able to control various IRIS motors. Notes) ..... Register input / output signal specification. ...That is the first 4 of a number of hits. If the info in the semi datasheets are insufficient, then try to find out what stepper motors are used,and attack their datasheets. |
#4
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
In article om,
Jim Mueller wrote: On Sat, 21 Jun 2014 10:22:38 -0700, Jim Thompson wrote: Any idea where I might find a data sheet for a camera iris motor? In particular I'm trying to find out what kind of signal is output via the feedback winding. ...Jim Thompson Unless it's a very low volume camera, the motor is probably custom made; you won't be able to get a data sheet. You might be able to get data sheets for similar motors but there is no guarantee how closely yours will match. You might try contacting the camera manufacturer; they might be sympathetic, but that isn't likely. Your best bet is to test the motor and develop your own data. Jim Mueller I've cracked some lenses open and the iris was just a stepper motor with no feedback. Much like old floppy disk heads, they banged up against a stopper to initialize the position every time the aperture opens to full. Closing the aperture was just counting steps. I don't think I've seen a motor with internal feedback in anything except RC servos. They're expensive and they make assembly difficult. Precision movement usually comes from a stepper motor or optics counting painted lines on the final driven component. |
#5
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
On Sat, 21 Jun 2014 22:00:26 -0700, Robert Baer
wrote: Jim Thompson wrote: camera iris motor The BabyBird (GooGull) sez: [PDF] Auto-iris Motorized Zoom Lenses - Bosch Security Systems resource.boschsecurity.com/.../Data_sheet_enUS_2191260299.pdf camera optic features. Lenses in this series include 10x, 15x, and 20x zoom range models. Some models provide optional pre- position and manual iris override ... *** Covers the lenses, not the motors. [PDF] D22x9.1B-Y41 - Fujifilm http://www.fujifilm.com/products/opt...x91b-y41_e.pdf Fujifilm Wiring. D22x9.1B-Y41. Focal Length ?mm?. 9.1 - 200(22x). Iris Range. F1.2 - T1500(Equivalent to F1500). Operation. Zoom. Motor Drive. Focus. Motor Drive. Iris. *** Useless for your needs; one pager,lens wiring. *** Next 2 are for the drivers, and maybe useful. [PDF] AN41908A - Semiconductor www.semicon.panasonic.co.jp/.../AN41908A_AE... Panasonic Corporation AN41908A is a lens motor driver IC for camcorder and security-camera featuring the functions of Iris control. ..... Register input / output signal specification. SCLK. [PDF] AN41919A - Semiconductor www.semicon.panasonic.co.jp/.../AN41919A_E.p... Panasonic Corporation AN41919A is a DC IRIS control LSI for IP camera and security ... and is able to control various IRIS motors. Notes) ..... Register input / output signal specification. ..That is the first 4 of a number of hits. If the info in the semi datasheets are insufficient, then try to find out what stepper motors are used,and attack their datasheets. What good are truncated links? Do you know about http://tinyurl.com/ ? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | | Voice480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
#7
Posted to sci.electronics.design,alt.binaries.schematics.electronic,sci.electronics.basics
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Iris Motor in a Camera
On 2014-06-22, Jim Thompson wrote:
On Sat, 21 Jun 2014 22:00:26 -0700, Robert Baer wrote: Jim Thompson wrote: camera iris motor The BabyBird (GooGull) sez: [PDF] Auto-iris Motorized Zoom Lenses - Bosch Security Systems resource.boschsecurity.com/.../Data_sheet_enUS_2191260299.pdf camera optic features. Lenses in this series include 10x, 15x, and 20x zoom range models. Some models provide optional pre- position and manual iris override ... *** Covers the lenses, not the motors. [PDF] D22x9.1B-Y41 - Fujifilm http://www.fujifilm.com/products/opt...x91b-y41_e.pdf Fujifilm Wiring. D22x9.1B-Y41. Focal Length ?mm?. 9.1 - 200(22x). Iris Range. F1.2 - T1500(Equivalent to F1500). Operation. Zoom. Motor Drive. Focus. Motor Drive. Iris. *** Useless for your needs; one pager,lens wiring. *** Next 2 are for the drivers, and maybe useful. [PDF] AN41908A - Semiconductor www.semicon.panasonic.co.jp/.../AN41908A_AE... Panasonic Corporation AN41908A is a lens motor driver IC for camcorder and security-camera featuring the functions of Iris control. ..... Register input / output signal specification. SCLK. [PDF] AN41919A - Semiconductor www.semicon.panasonic.co.jp/.../AN41919A_E.p... Panasonic Corporation AN41919A is a DC IRIS control LSI for IP camera and security ... and is able to control various IRIS motors. Notes) ..... Register input / output signal specification. ..That is the first 4 of a number of hits. If the info in the semi datasheets are insufficient, then try to find out what stepper motors are used,and attack their datasheets. What good are truncated links? it's just an example of what you could have got from google. Do you know about http://tinyurl.com/ ? tinyurl makes temporary links. -- umop apisdn --- news://freenews.netfront.net/ - complaints: --- |
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