RF 34mm, 27mm, and 24mm F1.2 from CANON

CANON filed a patent discussing optical designs of 34mm F1.2, 34mm F1.4, 27mm F1.2, and 24mm F1.2 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-92694(P2021-92694A) click here
【公開日】令和3年6月17日(2021.6.17)
【発明の名称】光学系および撮像装置

Embodiment 1: RF 34mm F1.2
Focal lenth (mm): 34.00
F number: 1.24
Half angle of view (degree): 32.47
Image height (mm): 21.64
Lens length (mm): 154.96
Back focus (mm): 17.05


Embodiment 2: RF 34mm F1.4
Focal lenth (mm): 34.00
F number: 1.45
Half angle of view (degree): 32.47
Image height (mm): 21.64
Lens length (mm): 125.96
Back focus (mm): 12.96


Embodiment 3: RF 27mm F1.2
Focal lenth (mm): 27.15
F number: 1.24
Half angle of view (degree): 38.55
Image height (mm): 21.64
Lens length (mm): 146.96
Back focus (mm): 13.45


Embodiment 4: RF 24mm F1.2
Focal lenth (mm): 24.74
F number: 1.24
Half angle of view (degree): 41.17
Image height (mm): 21.64
Lens length (mm): 143.97
Back focus (mm): 13.45

Omnidirectional camera from NIKON

NIKON filed a patent of omnidirectional cameras.

【公開番号】特開2021-89326(P2021-89326A) click here
【公開日】令和3年6月10日(2021.6.10)
【発明の名称】光学装置、全天球カメラ及び全天球カメラの製造方法

Lens layout: tetrahedronic


Lens embodiment 1
Focal length: 1.2 mm
F number: 2.4
Angle of view: 189.54 degree
Image height: 1.9 mm
Lens length: 25.3 mm
Back focus: 4.2 mm

16-70mm, 20-72mm, 28-72mm, F4 for full-frame mirrorless cameras from TAMRON

TAMRON filed a patent discussing optical designs of 16-70mm, 20-72mm, 28-72mm, F4 zoom lenses for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-85962(P2021-85962A) click here
【公開日】令和3年6月3日(2021.6.3)
【発明の名称】ズームレンズ及び撮像装置

Embodiment 1
Focal length (mm): 16.48 33.54 67.88
F number: 4.12 4.12 4.12
Half angle of viw (degree): 54.46 31.40 16.88
Image height (mm): 19.60 21.63 21.63
Lens length (mm): 147.00 136.83 170.00


Embodiment 2
Focal length (mm): 16.48 33.53 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 54.66 31.55 16.88
Image height (mm): 19.74 21.63 21.63
Lens length (mm): 140.00 125.98 145.07


Embodiment 3
Focal length (mm): 20.40 37.57 67.90
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.64 30.07 16.87
Image height (mm): 19.68 21.63 21.63
Lens length (mm): 147.00 133.51 147.05


Embodiment 4
Focal length (mm): 28.85 46.35 72.75
F number: 2.88 2.88 2.89
Half angle of view (degree): 38.09 25.02 15.79
Image height (mm): 19.89 21.61 21.63
Lens length (mm): 135.00 138.51 166.43


Embodiment 5
Focal length (mm): 28.86 46.17 72.73
F number: 2.88 2.88 2.88
Half angle of view (degree): 38.02 25.30 15.77
Image height (mm): 20.12 21.30 21.63
Lens length (mm): 140.00 133.82 144.20


Embodiment 6
Focal length (mm): 20.41 37.58 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.69 30.29 17.58
Image height (mm): 19.70 21.04 21.63
Lens length (mm): 147.00 140.98 152.83