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By Vashistha, on May 18th, 2016
We have a spotted another fullframe lens patent by Ricoh for upcoming Pentax fullfrme camera including the Pentax K1 DSLR. According to latest patent document Pentax filed a 100 to 300 mm lens patent that features a constant of F4 aperture throughout the zoom range. automatic translation of the patent document is below
Description, self-interpretation of the patent literature
- Patent Publication No. 2016-80717
- Published 2016.5.16
- Filing date 2014.10.9
- Example 1
- Zoom ratio (zoom ratio) 2.87
- FNO. 4.1 4.1 4.1
- f 102.00 200.01 293.01
- W 12.0 6.1 4.1
- Y 21.64 21.64 21.64
- fB 38.16 38.16 38.16
- L 279.45 279.44 279.44
This is not the first time we have a spotted a lens for Pentax K1 DSLR early we have also published patents related to Pentax full frame camera for example you can see on April 13th 2015 we have published 200 mm f 2.8 lens patent for a full frame camera The other patent was published on November 18th 2013 for 60mm F2.8 Macro lens for full frame camera.
See more Pentax patent, also see Pentax K-1 DSLR User Manual, PDF Guide
source – egami
By admin, on April 13th, 2016
Ricoh filed a patent for a 200mm F2.8 lens for fullframe sensor camera. As we all know that Pentax K-1 is now available in stores and Rioch / Pentax making positive effort to add more lenses to attract more fullframe users.
Ricoh / Pentax Patent 200mm F2.8 Lens details
- Patent Publication No. 2016-51100
- Published 2016.4.11
- Filing date 2014.9.1
- Example 1
- Focal length 200.000
- F-number 2.80
- Half angle of 6.3 °
- Image height 22.000
- BF 66.870
- Overall length of the lens 184.874
See more Pentax patent, also see Pentax K-1 DSLR User Manual, PDF Guide
source – egami
By admin, on December 25th, 2015
Ricoh is working on Hybrid phase detect sensor, that will do Phase AF too by the help of active phase AF pixels. The new innovation will sure help Pentax / Ricoh to enable high speed AF during vidoe and live view-mode.
Description, self-interpretation of the patent literature
- Patent Publication No. 2015-230355
- Published 2015.12.21
- Filing date 2014.6.4
- Ricoh patents
- The image plane phase difference AF
- 3 or more subpixels per pixel
- Three or more of the spectral sensitivity element in one pixel
- With respect to adjacent pixels, it will maintain the symmetry
- Since generating three colors from one pixel can be reduce false color
Stay with for more Pentax patents and news
By admin, on November 18th, 2013
Latest Ricoh (Pentax is a brand name used by Ricoh Imaging Company) Patent information surfaced over the web, Ricoh/Pentax patent a 60mm F2.8 Fullframe Macro Lens with built-in optical IS.
Also see – according to latest news / rumors – Pentax Full-Frame Coming on 2014
Continue reading Ricoh Patent – 60mm F2.8 Fullframe Macro Lens
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