New half mirror OVF&EVF Hybrid Viewfinder patent

OoKU · 01-07-2021, 02:18 AM - **3 Likes**

(19) [Publication country] Japan Patent Office (JP)
(12) [Kind of official gazette] Published unexamined patent application (A)
(11) [Publication number] JP 2021 - 1922A (P2021-1922A)
(43) [Date of publication of application] Reiwa 3(2021) January 7 (2021.1.7)
(54) [Title of the invention] IMAGE TAKING APPARATUS AND IMAGE TAKING METHOD

(57) [Overview]
[Problem]
To provide a photographing device and a photographing method capable of performing a suitable (smooth and no time delay) finder display even during continuous photographing.

[Means for solving]
The superimposed display mode setting unit sets a superimposed display mode in which an optical image by the finder optical system and an electronic image by the image pickup element are superimposed and displayed. The continuous shooting mode setting unit sets a continuous shooting mode. When the superimposed display mode is set and the continuous shooting mode is set, the movable mirror control unit prohibits the movable mirror from rotating to the mirror-up position and maintains it at the mirror-down position.

https://www.j-platpat.inpit.go.jp/c1800/PU/JP-2019-114184/557DAFA5287979E693...0DC8BBD7/10/en

Attached Images

Last edited by OoKU; 01-07-2021 at 02:57 AM.

Paul the Sunman · 01-07-2021, 02:26 AM - **1 Like**

Pentax! Just when everyone else is forgetting about mirrors altogether. I don't really understand it though.

Man, those flow diagrams at the end take me back to a different lifetime.

stevebrot · 01-07-2021, 02:28 AM

Pity I don't read Japanese. Is the applicant Ricoh Imaging? Is this for a fixed lens camera? Pellicle mirror?

Steve

stevebrot · 01-07-2021, 02:31 AM - **1 Like**

Originally posted by Paul the Sunman

Man, those flow diagrams at the end take me back to a different lifetime.

All those flow diagrams makes me think this is a process and not a mechanism that is being patented.

Steve

PePe · 01-07-2021, 02:43 AM

I have been expecting something like this to show up already for a while. Obviously not that easy to do. But is it Pentax/Ricoh applying or someone else?

EDIT It says Ricoh Ltd in the documents

beholder3 · 01-07-2021, 02:52 AM - **1 Like**

Originally posted by stevebrot

Pity I don't read Japanese. Is the applicant Ricoh Imaging?

yes, it is a new ricoh patent

OoKU · 01-07-2021, 02:53 AM

Originally posted by stevebrot

Pity I don't read Japanese. Is the applicant Ricoh Imaging? Is this for a fixed lens camera? Pellicle mirror?

Steve

???????? (Maintenance information) | J-PlatPat/AIPN

beholder3 · 01-07-2021, 02:56 AM

A new Ricoh patent about hybrid viewfinding.

Quote:

maintains the mirror-down position when the superimposed display mode is set and the continuous shooting mode is set

What I really do not understand is how they want the mirror fixed "down" when in continuous shooting mode in hybrid viewfinder mode.
That would block light permanently from going to the main sensor I assume.

Any secondary (e.g. the metering aux sensor) sensor would still see the subject, but that's a 640x480 pixel thing.

OoKU · 01-07-2021, 02:59 AM

Originally posted by beholder3

A new Ricoh patent about hybrid viewfinding.

What I really do not understand is how they want the mirror fixed "down" when in continuous shooting mode in hybrid viewfinder mode.
That would block light permanently from going to the main sensor I assume.

Any secondary (e.g. the metering aux sensor) sensor would still see the subject, but that's a 640x480 pixel thing.

a half mirror like Sony A99ii,
But A99ii is fixed.
The Ricoh new patent mirror still can up-and-down movement.

phoebus · 01-07-2021, 03:04 AM

Originally posted by OoKU

a half mirror like Sony A99ii,
But A99ii is fixed.
The Ricoh new patent mirror still can up-and-down movement.

Was there not a Ricoh patent for a variable reflectivity mirror sometime ago?? This would be the ideal application..

OoKU · 01-07-2021, 03:09 AM

Originally posted by phoebus

Was there not a Ricoh patent for a variable reflectivity mirror sometime ago?? This would be the ideal application..

???????? (Maintenance information) | J-PlatPat/AIPN

repaap · 01-07-2021, 03:12 AM

OokU, Could this be used in Pentax cameras in near future?

phoebus · 01-07-2021, 03:17 AM

Originally posted by OoKU

???????? (Maintenance information) | J-PlatPat/AIPN

Confused - that patent was by Toshiba for electric motor armature... ????

**Madaboutpix** · 01-07-2021, 03:20 AM - **1 Like**

Fits with their reaffirmed commitment to further evolving existing DSLR technology. Patents like the one you digged up show that they are busy trying to do just what they announce, which should be a good thing.

phoebus · 01-07-2021, 03:24 AM - **1 Like**

@Ooku - this is the one:

Is this Pentax's future? Translucent mirror with adjustable transmission rate patent - PentaxForums.com

01-07-2021, 02:18 AM - 3 Likes	#1
OoKU Pentaxian Join Date: Dec 2015 Posts: 740	New half mirror OVF&EVF Hybrid Viewfinder patent (19) [Publication country] Japan Patent Office (JP) (12) [Kind of official gazette] Published unexamined patent application (A) (11) [Publication number] JP 2021 - 1922A (P2021-1922A) (43) [Date of publication of application] Reiwa 3(2021) January 7 (2021.1.7) (54) [Title of the invention] IMAGE TAKING APPARATUS AND IMAGE TAKING METHOD (57) [Overview] [Problem] To provide a photographing device and a photographing method capable of performing a suitable (smooth and no time delay) finder display even during continuous photographing. [Means for solving] The superimposed display mode setting unit sets a superimposed display mode in which an optical image by the finder optical system and an electronic image by the image pickup element are superimposed and displayed. The continuous shooting mode setting unit sets a continuous shooting mode. When the superimposed display mode is set and the continuous shooting mode is set, the movable mirror control unit prohibits the movable mirror from rotating to the mirror-up position and maintains it at the mirror-down position. https://www.j-platpat.inpit.go.jp/c1800/PU/JP-2019-114184/557DAFA5287979E693...0DC8BBD7/10/en Attached Images Last edited by OoKU; 01-07-2021 at 02:57 AM.

01-07-2021, 03:20 AM - 1 Like	#14
Madaboutpix Site Supporter Join Date: Dec 2011 Location: North Rhine-Westphalia Posts: 1,440	Fits with their reaffirmed commitment to further evolving existing DSLR technology. Patents like the one you digged up show that they are busy trying to do just what they announce, which should be a good thing. Last edited by Madaboutpix; 01-07-2021 at 07:15 AM.

01-07-2021, 03:24 AM - 1 Like	#15
phoebus Pentaxian Join Date: Jun 2013 Location: Buckinghamshire (UK) / Morbihan (FR) Photos: Gallery Posts: 470	Previous patent of variable mirror @Ooku - this is the one: Is this Pentax's future? Translucent mirror with adjustable transmission rate patent - PentaxForums.com

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01-07-2021, 02:26 AM - 1 Like	#2
Paul the Sunman Pentaxian Join Date: Aug 2011 Location: Melbourne Photos: Gallery Posts: 4,843	Pentax! Just when everyone else is forgetting about mirrors altogether. I don't really understand it though. Man, those flow diagrams at the end take me back to a different lifetime.

01-07-2021, 02:28 AM	#3
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Pity I don't read Japanese. Is the applicant Ricoh Imaging? Is this for a fixed lens camera? Pellicle mirror? Steve

01-07-2021, 02:31 AM - 1 Like	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Paul the Sunman Man, those flow diagrams at the end take me back to a different lifetime. All those flow diagrams makes me think this is a process and not a mechanism that is being patented. Steve

01-07-2021, 02:43 AM	#5
PePe Pentaxian Join Date: Nov 2007 Location: Helsinki, Finland Photos: Gallery \| Albums Posts: 597	I have been expecting something like this to show up already for a while. Obviously not that easy to do. But is it Pentax/Ricoh applying or someone else? EDIT It says Ricoh Ltd in the documents

01-07-2021, 02:52 AM - 1 Like	#6
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	Originally posted by stevebrot Pity I don't read Japanese. Is the applicant Ricoh Imaging? yes, it is a new ricoh patent

01-07-2021, 02:53 AM	#7
OoKU Pentaxian Join Date: Dec 2015 Posts: 740 Original Poster	Originally posted by stevebrot Pity I don't read Japanese. Is the applicant Ricoh Imaging? Is this for a fixed lens camera? Pellicle mirror? Steve ???????? (Maintenance information) \| J-PlatPat/AIPN

01-07-2021, 02:56 AM	#8
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	A new Ricoh patent about hybrid viewfinding. Quote: maintains the mirror-down position when the superimposed display mode is set and the continuous shooting mode is set What I really do not understand is how they want the mirror fixed "down" when in continuous shooting mode in hybrid viewfinder mode. That would block light permanently from going to the main sensor I assume. Any secondary (e.g. the metering aux sensor) sensor would still see the subject, but that's a 640x480 pixel thing.

01-07-2021, 02:59 AM	#9
OoKU Pentaxian Join Date: Dec 2015 Posts: 740 Original Poster	Originally posted by beholder3 A new Ricoh patent about hybrid viewfinding. What I really do not understand is how they want the mirror fixed "down" when in continuous shooting mode in hybrid viewfinder mode. That would block light permanently from going to the main sensor I assume. Any secondary (e.g. the metering aux sensor) sensor would still see the subject, but that's a 640x480 pixel thing. a half mirror like Sony A99ii, But A99ii is fixed. The Ricoh new patent mirror still can up-and-down movement.

01-07-2021, 03:04 AM	#10
phoebus Pentaxian Join Date: Jun 2013 Location: Buckinghamshire (UK) / Morbihan (FR) Photos: Gallery Posts: 470	Originally posted by OoKU a half mirror like Sony A99ii, But A99ii is fixed. The Ricoh new patent mirror still can up-and-down movement. Was there not a Ricoh patent for a variable reflectivity mirror sometime ago?? This would be the ideal application..

01-07-2021, 03:09 AM	#11
OoKU Pentaxian Join Date: Dec 2015 Posts: 740 Original Poster	Originally posted by phoebus Was there not a Ricoh patent for a variable reflectivity mirror sometime ago?? This would be the ideal application.. ???????? (Maintenance information) \| J-PlatPat/AIPN

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01-07-2021, 03:12 AM	#12
repaap Pentaxian Join Date: Oct 2010 Photos: Gallery \| Albums Posts: 6,242	OokU, Could this be used in Pentax cameras in near future?

01-07-2021, 03:17 AM	#13
phoebus Pentaxian Join Date: Jun 2013 Location: Buckinghamshire (UK) / Morbihan (FR) Photos: Gallery Posts: 470	Originally posted by OoKU ???????? (Maintenance information) \| J-PlatPat/AIPN Confused - that patent was by Toshiba for electric motor armature... ????