Tamron 20-50mm f/2.8, 25-50mm f/2, and 28-75mm f/2.8-4 Patents Found

• 3 years ago

Overview

• [Publication Number] Japanese Patent Laid-Open No. 2021-196572 (Publication Number)P2021-196572A)
  
  ・ Similar patent: Japanese Patent Laid-Open No. 2021-196573 (P2021-196573A)
  
  ・ Similar patent: Japanese Patent Application Laid-Open No. 2021-196574 (P2021-196574A)
• [Publication date] December 27, 2021
• [Title of the invention] Zoom lens and image pickup device
• [Application date] June 18, 2020
• [Applicant]
  
  [Identification number] 000133227
  
  [Name or name] Tamron Co., Ltd.
• PROBLEM TO BE SOLVED: To provide a compact zoom lens and an image pickup device for a camera whose miniaturization is advancing.

Example 1

• Focal length: 25.78-48.51
• F value: 2.06
• Half angle of view: 41.07-23.00
• Image height: 20.61-21.63
• Overall length: 150.05-144.82

Example 2

• Focal length: 20.60-48.51
• F value: 2.88
• Half angle of view: 48.36-23.02
• Image height: 19.68-21.63
• Overall length: 150.00

Example 3

• Focal length: 20.60-38.81
• F value: 2.88
• Half angle of view: 48.36-27.97
• Image height: 19.68-21.63
• Overall length: 150.00-146.59

Example 5

• Focal length: 28.85-72.67
• F value: 2.88
• Half angle of view: 38.14-15.79
• Image height: 19.91-21.63
• Overall length: 140.00

Example 6

• Focal length: 28.84-72.75
• F value: 4.12
• Half angle of view: 38.13-15.78
• Image height: 19.92-21.63
• Overall length: 130.00

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