PATENT CLAIM ANALYSIS

Application Number: 15759682
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["396", "384000"]

Abstract:
A finder optical system is achieved in which object images can be more easily observed. A finder optical system includes an image-erecting member, which erects an object image formed by an objective optical system, provided on an optical path from the object side toward an eyepiece side, wherein the image-erecting member is formed as a penta roof prism provided with a first reflection surface and a second reflection surface, which define a roof reflection surface that reflects an incident light bundle emanated from the object, and the first reflection surface and the second reflection surface are configured as total-reflection surfaces that totally reflect the light bundle including the object image.

Claim (Index 8):
The finder optical system according to  claim 1 , comprising an optical element including a light-bundle superimposing surface at a position toward the eyepiece side with respect to the penta roof prism, wherein the optical element including the light-bundle superimposing surface reflects and superimposes a light bundle from the information display device onto the optical path of the finder optical system, and\n wherein the following condition (6) is satisfied:\n T 1/ T 2>1.05\u2003\u2003(6), wherein \n T 1  designates the average transmittance, with respect to light having a wavelength 400 nm through 450 nm, of the optical element including a light-bundle superimposing surface, and T 2  designates the average transmittance, with respect to light having a wavelength 500 nm through 650 nm, of the optical element including a light-bundle superimposing surface.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 1.95
- Patent Class: 396.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['09708045', '14108586', '09978542', '10307352', '14189718']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7302072804289071
- 35 USC 102 Novelty (BERT): 0.5158162664715221
- Combined Prediction Score: 0.7087681790331686
- Mean Citation Score: 279.15900800000003
- Max Citation Score: 320.4191
- Similarity Product: 239.11625908953548

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

Dataset: test