Canon. has been granted a patent for an optical system featuring a diaphragm and a first cemented lens with a negative lens positioned adjacent to the diaphragm’s object side, meeting specific dimensional criteria related to the effective and outer diameters of the lens. GlobalData’s report on Canon gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Canon, E-transaction user interfaces was a key innovation area identified from patents. Canon's grant share as of June 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Optical system with diaphragm and negative cemented lens

Source: United States Patent and Trademark Office (USPTO). Credit: Canon Inc

The patent US12044831B2 describes an innovative optical system that includes a diaphragm and a first cemented lens positioned adjacent to the object side of the diaphragm. This first lens features a negative lens and is characterized by specific dimensional relationships, particularly an effective diameter (D0) that must be less than 1.5 times the outer diameter (D1) of the negative lens. The claims further detail that the first cemented lens may consist of two or three lenses and possesses a negative refractive power. Additionally, the optical system may include a second cemented lens on the image side of the diaphragm, which can also be a negative lens adhering to similar dimensional constraints, or a positive lens, depending on the configuration.

Moreover, the patent outlines the integration of the optical system into various applications, such as an image pickup apparatus equipped with an image sensor for capturing objects. This apparatus can be utilized in an in-vehicle system, where a processor analyzes distance information to assess potential collision risks. The claims also extend to a moving apparatus that can carry the image pickup apparatus, emphasizing the versatility of the optical system in practical applications. The specified inequalities regarding lens diameters and configurations aim to optimize the performance and functionality of the optical system in diverse settings.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.