New mirror box

**RuiC** · 05-29-2013, 02:27 PM

It seems to me that this new mirror box has a mirror larger than the APS-C equivalents! What do you think about it?

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fn...ntax&RS=pentax

Regards
Rui

Attached Images

Last edited by RuiC; 05-29-2013 at 05:26 PM. Reason: New link

**Pål Jensen** · 05-29-2013, 02:47 PM

I cannot access the patent. What does it do? This is more than just a mirrorbox. SR?

aurele · 05-29-2013, 02:54 PM

looks like a whole new mirror box, with new operating for the mirror action.

civiletti · 05-29-2013, 03:07 PM

Originally posted by Pål Jensen

I cannot access the patent. What does it do? This is more than just a mirrorbox. SR?

Yes, the link is bad. More importantly, does the lens release button stay attached to the camera?

Tanzer · 05-29-2013, 04:35 PM

Is that patent assigned to Pentax/Ricoh or another manufacturer?

f6gs · 05-29-2013, 04:35 PM

Hi,

This patent can be shown in the following google patent:

Patent US20130108257 - Shock-absorbing mechanism for movable mirror of camera - Google Patents

LowVoltage · 05-29-2013, 05:13 PM

I don't have my K-5ii in front of me and I can't recall off the top of my head, but is that the correct number of SDM contacts? I can't recall if it's two or three.

**RuiC** · 05-29-2013, 05:28 PM

Sorry for that! I hope the link is working fine now! I don't understand why it's not working. The patent number is 20130108257 !

Rui

JPT · 05-29-2013, 05:30 PM

Here is a link to the application.

Patent US20130108257 - Shock-absorbing mechanism for movable mirror of camera - Google Patents

From reading the application, it seems that this is a means of absorbing mirror shock to enable faster continuous shooting.

JimmyDranox · 05-29-2013, 05:36 PM

The mirror is APS-C. The 2 contacts of SDM are in their places. Something different? I don't wanna open the camera to find out. So I shall wait.

**RuiC** · 05-29-2013, 05:40 PM

quote from patent text:

" medium) 19. The present embodiment of the camera 10 is a digital camera using the image sensor 19 as a photographic light-receiving medium; however, the present invention can also be applied to a camera using silver-salt film as a photographic light-receiving medium. " unquote

JimmyDranox · 05-29-2013, 05:53 PM

And a better shock absorbant system is necessary for a bigger mirror.

Cannikin · 05-29-2013, 06:43 PM

That is definitely an APS-C mirror box shown in that drawing. The FF K-mount mirror box's top left and right corners extend outside the mount circle (appearing to be cut off when viewed straight on). This drawing clearly shows both the box's top corners inside the circle.

richard balonglong · 05-29-2013, 07:39 PM

Originally posted by RuiC

It seems to me that this new mirror box has a mirror larger than the APS-C equivalents! What do you think about it?

United States Patent Application: 0130108257

Regards
Rui

I don't want to disappoint anyone, but that's an APS-C mirror box...
Here's what Pentax 135mm format mirror box looks like...

FYI this is a Pentax Z-1 film SLR with a locked-up mirror...

Winder · 05-29-2013, 08:07 PM

With the rumor of a "pro-grade" APS-C from Pentax they might just be working on a system that can handle 10fps and having to redesign the box to handle the mirror and absorb vibration.

Looking at the mirror box on the Z-1 I don't think Pentax could design telecentric lenses for a full frame sensor.

05-29-2013, 02:27 PM	#1
RuiC Site Supporter Join Date: Jan 2009 Location: Lisboa - The best destination in Europe Posts: 633	New mirror box It seems to me that this new mirror box has a mirror larger than the APS-C equivalents! What do you think about it? http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fn...ntax&RS=pentax Regards Rui Attached Images Last edited by RuiC; 05-29-2013 at 05:26 PM. Reason: New link

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05-29-2013, 02:47 PM	#2
Pål Jensen Site Supporter Join Date: Dec 2007 Location: Norway Photos: Albums Posts: 4,371	I cannot access the patent. What does it do? This is more than just a mirrorbox. SR?

05-29-2013, 02:54 PM	#3
aurele Veteran Member Join Date: Jan 2011 Location: Paris, France Photos: Albums Posts: 3,217	looks like a whole new mirror box, with new operating for the mirror action.

05-29-2013, 03:07 PM	#4
civiletti Pentaxian Join Date: Jul 2010 Location: Oregon Photos: Albums Posts: 1,435	Originally posted by Pål Jensen I cannot access the patent. What does it do? This is more than just a mirrorbox. SR? Yes, the link is bad. More importantly, does the lens release button stay attached to the camera?

05-29-2013, 04:35 PM	#5
Tanzer Veteran Member Join Date: Mar 2012 Location: Perrineville, NJ Posts: 1,375	Is that patent assigned to Pentax/Ricoh or another manufacturer?

05-29-2013, 04:35 PM	#6
f6gs New Member Join Date: Feb 2010 Location: Hiroshima Photos: Gallery Posts: 1	Hi, This patent can be shown in the following google patent: Patent US20130108257 - Shock-absorbing mechanism for movable mirror of camera - Google Patents

05-29-2013, 05:13 PM	#7
LowVoltage Veteran Member Join Date: Jul 2009 Location: Mount Joy, PA Photos: Gallery Posts: 544	I don't have my K-5ii in front of me and I can't recall off the top of my head, but is that the correct number of SDM contacts? I can't recall if it's two or three.

05-29-2013, 05:28 PM	#8
RuiC Site Supporter Join Date: Jan 2009 Location: Lisboa - The best destination in Europe Posts: 633 Original Poster	Sorry for that! I hope the link is working fine now! I don't understand why it's not working. The patent number is 20130108257 ! Rui

05-29-2013, 05:30 PM	#9
JPT Pentaxian Join Date: Jan 2012 Location: Tokyo Photos: Gallery Posts: 2,821	Here is a link to the application. Patent US20130108257 - Shock-absorbing mechanism for movable mirror of camera - Google Patents From reading the application, it seems that this is a means of absorbing mirror shock to enable faster continuous shooting.

05-29-2013, 05:36 PM	#10
JimmyDranox Veteran Member Join Date: Oct 2012 Location: Ploiesti, Romania Photos: Gallery \| Albums Posts: 1,632	The mirror is APS-C. The 2 contacts of SDM are in their places. Something different? I don't wanna open the camera to find out. So I shall wait.

05-29-2013, 05:40 PM	#11
RuiC Site Supporter Join Date: Jan 2009 Location: Lisboa - The best destination in Europe Posts: 633 Original Poster	quote from patent text: " medium) 19. The present embodiment of the camera 10 is a digital camera using the image sensor 19 as a photographic light-receiving medium; however, the present invention can also be applied to a camera using silver-salt film as a photographic light-receiving medium. " unquote

05-29-2013, 05:53 PM	#12
JimmyDranox Veteran Member Join Date: Oct 2012 Location: Ploiesti, Romania Photos: Gallery \| Albums Posts: 1,632	And a better shock absorbant system is necessary for a bigger mirror.

05-29-2013, 06:43 PM	#13
Cannikin Veteran Member Join Date: Mar 2010 Location: SW Washington Posts: 833	That is definitely an APS-C mirror box shown in that drawing. The FF K-mount mirror box's top left and right corners extend outside the mount circle (appearing to be cut off when viewed straight on). This drawing clearly shows both the box's top corners inside the circle.

05-29-2013, 07:39 PM	#14
richard balonglong Veteran Member Join Date: Aug 2007 Location: Baguio City, Philippines Photos: Gallery Posts: 350	Originally posted by RuiC It seems to me that this new mirror box has a mirror larger than the APS-C equivalents! What do you think about it? United States Patent Application: 0130108257 Regards Rui I don't want to disappoint anyone, but that's an APS-C mirror box... Here's what Pentax 135mm format mirror box looks like... FYI this is a Pentax Z-1 film SLR with a locked-up mirror...

05-29-2013, 08:07 PM	#15
Winder Veteran Member Join Date: Apr 2010 Location: Tennessee Posts: 6,617	With the rumor of a "pro-grade" APS-C from Pentax they might just be working on a system that can handle 10fps and having to redesign the box to handle the mirror and absorb vibration. Looking at the mirror box on the Z-1 I don't think Pentax could design telecentric lenses for a full frame sensor.