PATENT CLAIM ANALYSIS

Application Number: 16252995
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["359", "649000"]

Abstract:
In order to provide a projection lens barrel and a projection display device that are capable of correcting the optical characteristics of a plurality of lens groups, a projection lens barrel, comprising a lens optical system causing light from an image display element to be formed as a projected image on a screen, also comprises correction mechanisms that move each of at least two lens groups along an optical axis and correct the optical characteristics to be corrected, said lens groups each having different optical characteristics for correction in order to suppress reduction in image quality of a projected image caused by changes in optical characteristics caused by temperature changes in the projection lens barrel.

Claim (Index 1):
A projection lens barrel including a lens optical system that causes light from an image display element to form a projected image on a screen, the projection lens barrel comprising:\n at least two correction lens groups that each have different optical characteristics to be corrected in order to suppress reduction in image quality of the projected image caused by changes in optical characteristics that result from a change in temperature in the projection lens barrel; and a correction mechanism that is provided to each correction lens group, and that moves each correction lens group along an optical axis; wherein each correction mechanism includes:\n a thermal deforming frame that expands along the optical axis according to the change in temperature; \n a one end side holding part that abuts and holds one optical-axis end side of the thermal deforming frame in a state of abutting without being fixed thereto; and \n an other end side holding part that abuts and holds another optical-axis end side of the thermal deforming frame without being fixed thereto, \n wherein each correction lens group is moved by expansion of the thermal deforming frame so as to correct the optical characteristics.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 99.0
- Lexical Diversity: 1.93548
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15519467', '15543186', '16119422', '11728120', '13229284']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8050063350750651
- 35 USC 102 Novelty (BERT): 0.5142510790989214
- Combined Prediction Score: 0.7759308094774509
- Mean Citation Score: 243.751572
- Max Citation Score: 353.09494
- Similarity Product: 300.78751405951266

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test