A new Canon patent for telephoto lenses with built-in teleconverter. For what mount? RF mount.…
Well, that’s an interesting Canon patent application: an air-cooled heat dissipation system that also functions as IBIS (In Body Image Stabilization).
Canon patent application 2022137975 (Japan) discusses methods and technology for an air cooling system that also works for IBIS. How is that achieved? The patent literature describes a cooling method that is very similar to what is done for computer CPUs. Heat dissipation elements are mounted on the back of the imaging sensor, the cooling air passes through these elements. Extract from the patent literature (machine translated):
An imaging apparatus capable of efficiently dissipating heat generated by an imaging element movable in a direction orthogonal to an optical axis is provided.
Description of the Related Art
Conventionally, in order to improve image quality, there has been known an imaging apparatus that optically corrects image blur by moving an imaging device in a direction perpendicular to the optical axis . The image pickup device is required to have sufficient heat dissipation because the heat generated in the image pickup device affects the image quality when driving image blur correction, continuous shooting, moving image shooting, and the like.
In the configuration disclosed in Japanese Patent Laid-Open No. 2002-200013, the amount of heat radiation generated by the imaging element is determined by the thickness and width of the heat radiation sheet connected to the imaging element .
Description of the Related Art
In recent years, the amount of heat generated by an imaging device has increased due to improvements in moving image performance of imaging devices. For this reason, with the configuration disclosed in Patent Document 1, it is difficult to sufficiently dissipate the heat generated by the image pickup device, and there is a possibility that the temperature rise of the image pickup device cannot be eliminated. On the other hand, if the thickness and width of the heat dissipation sheet are increased in order to increase the amount of heat dissipation, the movement load of the imaging element increases .
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an imaging apparatus capable of efficiently dissipating heat generated by an imaging element movable in a direction perpendicular to the optical axis.
Means for Solving the Problems
An imaging apparatus as one aspect of the present invention includes an imaging element section having a fixed unit and a movable unit movable with respect to the fixed unit ; The movable unit has an imaging element and a heat exchange member, and at least part of the heat exchange member is inserted into the duct from an opening of the duct .
More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:
- RF 16-28mm lens with either f/2.8, f/2.8-4, or f/4
- Automatic shutter silencing based on subject and distance
- A bunch of prime lenses for the RF mount
- An improved Electronic Viewfinder
- Patent application for RF 50mm F1.4 and an RF 35mm f/1.4 lenses
- A zoom lens that might be for an EOS R with APS-C sensor
- A smaller IBIS unit.
- A cooling adapter for the RF mount (R5 overheating?)
- A bunch of macro lenses for the RF mount.
- A 8mm f/4 circular fisheye lens for the Canon EOS R system
- A battery grip that works with differently siszed cameras
- A 100-400mm f/5.5-7.1 lens for APS-C cameras. EOS M or DSLR?
- RF 17-70mm lens for EOS R system
- IBIS coming to the EOS M and PowerShot lineup?
- Patent Application: mirrorless camera with large display and virtual control wheel
- Patent Application: IBIS and Lens IS Working Together
- Patent application for high speed mirror movement and control
- Patent application for an RF 14-28mm f/2 lens
- Patent application for an RF 50mm f/1.8 lens
- Patent application for a smart lens cap
- Patent application for celestial auto-focus
- Patent application describing a Pop-Up Flash With LED
- Patent application describing the optical formula for a RF 70-300mm F/4-5.6 IS lens for EOS R systems
- Patent application describing how to improve burst rate by compressing raw files
- Patent application describing a new way to review photos from a sequential shot
- Patent application that describes technology to improve wireless communication while reducing power consumption
- Patent application to spot and reduce moire artefacts in image data
- Patent application for weather sealed lens adapter
- Patent application for AI powered predictive camera control system
- Patent application for 18-55mm kit lens with LCD display
- Patent application to reduce noise in image files