The Wide Angle Peephole is a wide-angle peephole device installed on entrance doors or functional doors to observe activity outside the door without opening it. This product features a brass main body structure, precision-machined into a unibody shell, and internally equipped with multiple optical lenses to achieve a wider viewing angle and clearer imaging. Compared to ordinary narrow-angle peepholes, the Wide Angle Peephole provides a wider field of view, reducing blind spots, while its barrel length is highly compatible with door thickness, resulting in greater installation stability. Various surface treatments are available, including SSS and PVD, balancing corrosion resistance with modern decorative styles. Suitable for various door structures, it achieves a balance between security and structural strength.

Wide Angle Peephole Parameters:

Wide Angle Peephole Features:

1. Wide-Angle Peephole

Utilizing a multi-layered optical lens structure, the wide-angle peephole offers a field of view exceeding 180 degrees, increasing coverage by approximately 50% compared to conventional 120-degree peepholes. Lens curvature accuracy is controlled within 0.02mm, ensuring image edge distortion is below 5%, effectively expanding the observation range and reducing blind spots outside doors.

2. Precise Imaging

Internal lenses achieve a light transmittance of over 92%, with lens thickness error controlled within ±0.05mm, ensuring stable light transmission. Through a multi-lens combination design, image clarity reaches 720P level visual effect, maintaining sharp outlines even at a 2-meter observation distance, improving recognition accuracy.

3. Sturdy Structure

The main body is made of brass, with a density of approximately 8.5g/cm³ and a compressive strength exceeding 200MPa. Threaded connection length is no less than 20mm, adapting to door thicknesses ranging from 35mm to 60mm. The overall tensile strength after installation exceeds 800N, ensuring long-term stability.

4. Corrosion-Resistant Surface

The surface supports PVD coating treatment with a coating thickness of approximately 0.25 microns and an adhesion rating of 5B. No obvious corrosion points were observed after a 48-hour salt spray test. The roughness of the brushed surface is controlled within Ra1.0, maintaining uniform and stable color and extending the service life of the appearance.

5. Specification Matching

Wide Angle Peephole offers different lens barrel lengths to suit various door thicknesses, with a standard aperture range of 14mm to 16mm. Dimensional tolerances are controlled within ±0.1mm, ensuring a high degree of fit after installation, preventing wobbling or misalignment, and meeting the uniform standard requirements of mass production.

Wide Angle Peephole Application:

1. Residential Entrance Doors

Installing a Wide Angle Peephole in the structure of residential entrance doors allows for visitor identification, reducing the risk of unauthorized opening. For high-rise residential buildings or gated communities, peepholes have become a standard security component, enhancing daily usability.

2. Apartment Doors

Apartments and rental properties have high turnover rates, requiring standardized door configurations. Wide-angle peepholes meet the observation needs of different residents and, combined with modern door designs, enhance the overall security system's completeness.

3. Office Areas

Office doors in office buildings need to verify visitor identity without opening the door. Installing a wide-angle peephole allows for external observation even with the door closed, optimizing access control processes.

4. Hotel Guest Rooms

Hotel guest room doors are often equipped with observation devices to ensure guest privacy and safety. Wide-angle peepholes provide a wider field of view, allowing guests to check the corridor before opening the door, elevating the standard of guest room security.

5. Functional Compartments

Installing peepholes on the doors of storage rooms or internal management spaces helps personnel confirm the situation outside before opening the door, preventing collisions caused by sudden door opening and improving the safety of internal space management.

Wide Angle Peephole FAQs:

Q: What door thickness can the Wide Angle Peephole accommodate?

A: The product supports door thicknesses from 35mm to 60mm. Matching is achieved by changing the lens barrel length. For doors with unusual thicknesses, custom processing based on drawings is available, ensuring the threads are fully locked and the structure is stable after installation.

Q: Are professional tools required for installation?

A: Standard installation only requires drilling and simple tightening. It is recommended to keep the hole diameter between 14mm and 16mm to ensure a tight fit between the lens barrels. No additional fasteners are needed after installation for stability.

Q: Will the lens fog up or become blurry?

A: The internal lens has a sealed structure, and the lenses fit tightly together, effectively reducing dust ingress. Fogging is unlikely under normal indoor conditions, maintaining clear visibility for a long time.

Q: Is the surface prone to discoloration?

A: If the PVD surface-treated version is selected, the coating has high adhesion and strong wear resistance. Under normal indoor use, it can maintain its color for many years, with stable surface gloss.

Q: Does Wide Angle Peephole support bulk purchases?

A: The standard minimum order quantity is 300 pieces, with a standard lead time of approximately 30 to 35 days. For customized specifications, the production cycle will be clearly stated before order confirmation to ensure that the supply schedule matches the project progress.