{"id":3106,"date":"2023-03-21T14:50:52","date_gmt":"2023-03-21T05:50:52","guid":{"rendered":"https:\/\/optical-tech-group.toyotec.com\/?post_type=technicalcolumn&p=3106"},"modified":"2025-01-22T19:42:49","modified_gmt":"2025-01-22T10:42:49","slug":"what-are-the-points-in-choosing-between-catalog-custom-lenses","status":"publish","type":"technicalcolumn","link":"https:\/\/optical-tech-group.toyotec.com\/de\/technicalcolumn\/what-are-the-points-in-choosing-between-catalog-custom-lenses\/","title":{"rendered":"What Are the Points in Choosing Between Catalog \/ Custom Lenses?"},"content":{"rendered":"

Have you ever thought about using optical lenses for your product and thought, “There are so many different types and prices to choose from. Which one should I choose?” <\/span>Just as there are ready-made and order-made suits, there are catalog and custom lenses. <\/span>In this column, we will introduce the characteristics of these two types of lenses and explain the key points to consider when choosing the lens that best suits your needs.<\/span><\/p>\n

<\/h3>\n

<\/h3>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

1. Types of Lenses<\/h3>\n

 <\/p>\n

\u3007Catalog Lens<\/h4>\n

Refers to ready-made lenses sold on websites or in catalogs.<\/span><\/p>\n

\u3010Pros\u3011
\n<\/span>\u30fbCan be easily found and quickly purchased from catalogs and other sources
\n<\/span>\u30fbCan be purchased in low quantities
\n<\/span>\u30fbWide lineup, ideal if you want to try out lenses with various specifications
\n<\/span>\u30fbNo initial investment needed for molds, jigs, evaluation machines, etc.<\/span><\/p>\n

\u3010Cons\u3011
\n<\/span>\u30fbThere are cases where there is no match to the required specifications that you really want
\n<\/span>\u30fbEven with higher purchase volumes, cost benefits are small
\n<\/span>\u30fbIt is hard to distinguish the product from others because anyone can purchase the product
\n<\/span>\u30fbSpecifications cannot be altered<\/span><\/p>\n

<\/h4>\n

\u3007Custom Lens<\/h4>\n

An order-made lens that is made based on the buyer\u2019s specific optical performance and
\n<\/span>specification requirements.<\/span><\/p>\n

\u3010Pros\u3011
\n<\/span>\u30fb<\/span>It can be order-made
\n<\/span>\u30fbCan meet the required specifications you want
\n<\/span>\u30fbSpecifications can be changed during the production process
\n<\/span>\u00a0 \u00a0 (Though, it might cost additional fee during development phase)
\n<\/span>\u30fbIt is easy to generate cost benefits per unit when the purchase volume is high
\n<\/span>\u30fbEven if you don’t have specific specifications, suppliers can work with you from
\n<\/span>\u00a0 \u00a0 the product concept building stage<\/span><\/p>\n

\u3010Cons\u3011
\n<\/span>\u30fbIt takes time
\n<\/span>\u30fbThere are initial costs for molds, jigs, evaluation machines, etc
\n\u30fbYou have to provide a requirements specification
\n<\/span>\u30fbWithout optical knowledge, it is hard to know what to pay attention to and
\n<\/span> \u00a0 \u00a0 what are the key points to manufacture a lens
\n<\/span><\/p>\n

 <\/p>\n

\u3007Summary of Catalog \/ Custom Lens Comparison<\/h4>\n

\"\"<\/p>\n

Knowing “what kind of lens you want, when do you want it, and how many do you want” is essential in selecting lenses. Therefore, one of the key points in avoiding problems in lens selection is to follow the above explanation.<\/span><\/p>\n

 <\/p>\n

2. Case Studies<\/h3>\n

<\/h4>\n

\u3007Case 1<\/h4>\n

\u3010Background\u3011
\nThis is a case in which TOYOTEC made a proposal to a customer who had purchased a catalog lens.The customer wanted to lower the unit purchase price, and asked TOYOTEC if the unit price could be lowered with a custom lens.<\/span><\/p>\n

 <\/p>\n

\u3010Inquiry Details\u3011
\n<\/span>\u30fbQuantity\uff1a50 pcs \/ Month
\n<\/span>\u30fbProduct Life\uff1a10 Years\uff08120 Months\uff09
\n<\/span>\u30fbRequirements\uff1aA lens unit using glass lenses, design \/ spec must be same as the current catalog lens
\n<\/span><\/p>\n

 <\/p>\n

Figure 1: Comparison of Catalog and Custom Proposals
\n\"\"<\/strong><\/p>\n

\u3010Results\u3011
\nThe unit price of custom lenses was higher than the unit price of catalog lenses, and there was no benefit to the customer.<\/span><\/p>\n

 <\/p>\n

\u3010Explanation\u3011
\nAs described in “1. Types of Lenses,” custom lens production requires initial costs for molds, lens jigs and tools, etc. In addition, if the quantity is small, it is difficult to reduce the unit cost of parts from that of a catalog lens. Under the customer’s requirements, there is no benefit in making custom lenses.<\/span><\/p>\n

Figure 2: Cost Comparison of Catalog \/ Custom Lenses
\n\"\"
\n<\/strong>However, as shown in Figure 2, the part cost decreases as the quantity of custom lenses increases, so when requesting custom lenses with a focus on cost, it is recommended that multiple quantity requirements be presented.<\/span><\/p>\n

 <\/p>\n

\u3007Case 2<\/h4>\n

\u3010Background\u3011
\nThis is a case in which TOYOTEC made a proposal to a customer who had purchased a catalog lens as well as Case 1. This customer had requests to reduce product size while maintaining unit price and optical performance, and asked TOYOTEC if this was possible.<\/span><\/p>\n

\u3010Inquiry Details\u3011
\n<\/span>\u30fb<\/span>Quantity\uff1a1,000 pcs \/ Month
\n<\/span>\u30fbProduct Life\uff1a5 Years\uff0860 Months\uff09
\n<\/span>\u30fbRequirements\uff1aProduction of a full lens unit. If optical performance can be maintained,
\n<\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0the design can be freely chosen by the supplier.<\/span><\/p>\n

Figure 3: Lens Miniaturization Image
\n\"\"<\/strong><\/p>\n

\u3010Results\u3011
\r\nTOYOTEC analyzed the current product and redesigned the lens. As a result, we were able todownsize the lens while maintaining the same unit price and optical performance, thus achieving the customer\u2019s needs.<\/span><\/p>\n

 <\/p>\n

\u3010Explanation\u3011
\nUnlike Case 1, there are two reasons for the positive results. One is because the quantity requirements were relatively large,and the other is because we were able to work with the customer from the development stage.
\n<\/span><\/p>\n

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